/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Qt Software Information (qt-info@nokia.com) ** ** This file is part of the QtGui module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the either Technology Preview License Agreement or the ** Beta Release License Agreement. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain ** additional rights. These rights are described in the Nokia Qt LGPL ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at qt-sales@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/ #include #include #include #include #include #include QT_BEGIN_NAMESPACE #define MASK(src, a) src = BYTE_MUL(src, a) #if defined(Q_OS_IRIX) && defined(Q_CC_GNU) && __GNUC__ == 3 && __GNUC__ < 4 && QT_POINTER_SIZE == 8 #define Q_IRIX_GCC3_3_WORKAROUND // // work around http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14484 // static uint gccBug(uint value) __attribute__((noinline)); static uint gccBug(uint value) { return value; } #endif /* constants and structures */ static const int fixed_scale = 1 << 16; static const int half_point = 1 << 15; static const int buffer_size = 2048; struct LinearGradientValues { qreal dx; qreal dy; qreal l; qreal off; }; struct RadialGradientValues { qreal dx; qreal dy; qreal a; }; struct Operator; typedef uint* (QT_FASTCALL *DestFetchProc)(uint *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length); typedef void (QT_FASTCALL *DestStoreProc)(QRasterBuffer *rasterBuffer, int x, int y, const uint *buffer, int length); typedef const uint* (QT_FASTCALL *SourceFetchProc)(uint *buffer, const Operator *o, const QSpanData *data, int y, int x, int length); struct Operator { QPainter::CompositionMode mode; DestFetchProc dest_fetch; DestStoreProc dest_store; SourceFetchProc src_fetch; CompositionFunctionSolid funcSolid; CompositionFunction func; union { LinearGradientValues linear; RadialGradientValues radial; // TextureValues texture; }; }; /* Destination fetch. This is simple as we don't have to do bounds checks or transformations */ static uint * QT_FASTCALL destFetchMono(uint *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length) { uchar *data = (uchar *)rasterBuffer->scanLine(y); uint *start = buffer; const uint *end = buffer + length; while (buffer < end) { *buffer = data[x>>3] & (0x80 >> (x & 7)) ? rasterBuffer->destColor1 : rasterBuffer->destColor0; ++buffer; ++x; } return start; } static uint * QT_FASTCALL destFetchMonoLsb(uint *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length) { uchar *data = (uchar *)rasterBuffer->scanLine(y); uint *start = buffer; const uint *end = buffer + length; while (buffer < end) { *buffer = data[x>>3] & (0x1 << (x & 7)) ? rasterBuffer->destColor1 : rasterBuffer->destColor0; ++buffer; ++x; } return start; } static uint * QT_FASTCALL destFetchARGB32(uint *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length) { const uint *data = (const uint *)rasterBuffer->scanLine(y) + x; for (int i = 0; i < length; ++i) buffer[i] = PREMUL(data[i]); return buffer; } static uint * QT_FASTCALL destFetchARGB32P(uint *, QRasterBuffer *rasterBuffer, int x, int y, int) { return (uint *)rasterBuffer->scanLine(y) + x; } static uint * QT_FASTCALL destFetchRGB16(uint *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length) { const ushort *data = (const ushort *)rasterBuffer->scanLine(y) + x; for (int i = 0; i < length; ++i) buffer[i] = qConvertRgb16To32(data[i]); return buffer; } template Q_STATIC_TEMPLATE_FUNCTION uint * QT_FASTCALL destFetch(uint *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length) { const DST *src = reinterpret_cast(rasterBuffer->scanLine(y)) + x; quint32 *dest = reinterpret_cast(buffer); while (length--) *dest++ = *src++; return buffer; } # define SPANFUNC_POINTER_DESTFETCH(Arg) destFetch static const DestFetchProc destFetchProc[QImage::NImageFormats] = { 0, // Format_Invalid destFetchMono, // Format_Mono, destFetchMonoLsb, // Format_MonoLSB 0, // Format_Indexed8 destFetchARGB32P, // Format_RGB32 destFetchARGB32, // Format_ARGB32, destFetchARGB32P, // Format_ARGB32_Premultiplied destFetchRGB16, // Format_RGB16 SPANFUNC_POINTER_DESTFETCH(qargb8565), // Format_ARGB8565_Premultiplied SPANFUNC_POINTER_DESTFETCH(qrgb666), // Format_RGB666 SPANFUNC_POINTER_DESTFETCH(qargb6666), // Format_ARGB6666_Premultiplied SPANFUNC_POINTER_DESTFETCH(qrgb555), // Format_RGB555 SPANFUNC_POINTER_DESTFETCH(qargb8555), // Format_ARGB8555_Premultiplied SPANFUNC_POINTER_DESTFETCH(qrgb888), // Format_RGB888 SPANFUNC_POINTER_DESTFETCH(qrgb444), // Format_RGB444 SPANFUNC_POINTER_DESTFETCH(qargb4444) // Format_ARGB4444_Premultiplied }; /* Returns the color in the mono destination color table that is the "nearest" to /color/. */ static inline QRgb findNearestColor(QRgb color, QRasterBuffer *rbuf) { QRgb color_0 = PREMUL(rbuf->destColor0); QRgb color_1 = PREMUL(rbuf->destColor1); color = PREMUL(color); int r = qRed(color); int g = qGreen(color); int b = qBlue(color); int rx, gx, bx; int dist_0, dist_1; rx = r - qRed(color_0); gx = g - qGreen(color_0); bx = b - qBlue(color_0); dist_0 = rx*rx + gx*gx + bx*bx; rx = r - qRed(color_1); gx = g - qGreen(color_1); bx = b - qBlue(color_1); dist_1 = rx*rx + gx*gx + bx*bx; if (dist_0 < dist_1) return color_0; return color_1; } /* Destination store. */ static void QT_FASTCALL destStoreMono(QRasterBuffer *rasterBuffer, int x, int y, const uint *buffer, int length) { uchar *data = (uchar *)rasterBuffer->scanLine(y); if (rasterBuffer->monoDestinationWithClut) { for (int i = 0; i < length; ++i) { if (buffer[i] == rasterBuffer->destColor0) { data[x >> 3] &= ~(0x80 >> (x & 7)); } else if (buffer[i] == rasterBuffer->destColor1) { data[x >> 3] |= 0x80 >> (x & 7); } else if (findNearestColor(buffer[i], rasterBuffer) == rasterBuffer->destColor0) { data[x >> 3] &= ~(0x80 >> (x & 7)); } else { data[x >> 3] |= 0x80 >> (x & 7); } ++x; } } else { for (int i = 0; i < length; ++i) { if (qGray(buffer[i]) < int(qt_bayer_matrix[y & 15][x & 15])) data[x >> 3] |= 0x80 >> (x & 7); else data[x >> 3] &= ~(0x80 >> (x & 7)); ++x; } } } static void QT_FASTCALL destStoreMonoLsb(QRasterBuffer *rasterBuffer, int x, int y, const uint *buffer, int length) { uchar *data = (uchar *)rasterBuffer->scanLine(y); if (rasterBuffer->monoDestinationWithClut) { for (int i = 0; i < length; ++i) { if (buffer[i] == rasterBuffer->destColor0) { data[x >> 3] &= ~(1 << (x & 7)); } else if (buffer[i] == rasterBuffer->destColor1) { data[x >> 3] |= 1 << (x & 7); } else if (findNearestColor(buffer[i], rasterBuffer) == rasterBuffer->destColor0) { data[x >> 3] &= ~(1 << (x & 7)); } else { data[x >> 3] |= 1 << (x & 7); } ++x; } } else { for (int i = 0; i < length; ++i) { if (qGray(buffer[i]) < int(qt_bayer_matrix[y & 15][x & 15])) data[x >> 3] |= 1 << (x & 7); else data[x >> 3] &= ~(1 << (x & 7)); ++x; } } } static void QT_FASTCALL destStoreARGB32(QRasterBuffer *rasterBuffer, int x, int y, const uint *buffer, int length) { uint *data = (uint *)rasterBuffer->scanLine(y) + x; for (int i = 0; i < length; ++i) { int p = buffer[i]; int alpha = qAlpha(p); if (alpha == 255) data[i] = p; else if (alpha == 0) data[i] = 0; else { int inv_alpha = 0xff0000/qAlpha(buffer[i]); data[i] = (p & 0xff000000) | ((qRed(p)*inv_alpha) & 0xff0000) | (((qGreen(p)*inv_alpha) >> 8) & 0xff00) | ((qBlue(p)*inv_alpha) >> 16); } } } static void QT_FASTCALL destStoreRGB16(QRasterBuffer *rasterBuffer, int x, int y, const uint *buffer, int length) { quint16 *data = (quint16*)rasterBuffer->scanLine(y) + x; qt_memconvert(data, buffer, length); } template Q_STATIC_TEMPLATE_FUNCTION void QT_FASTCALL destStore(QRasterBuffer *rasterBuffer, int x, int y, const uint *buffer, int length) { DST *dest = reinterpret_cast(rasterBuffer->scanLine(y)) + x; const quint32 *src = reinterpret_cast(buffer); while (length--) *dest++ = DST(*src++); } # define SPANFUNC_POINTER_DESTSTORE(DEST) destStore static const DestStoreProc destStoreProc[QImage::NImageFormats] = { 0, // Format_Invalid destStoreMono, // Format_Mono, destStoreMonoLsb, // Format_MonoLSB 0, // Format_Indexed8 0, // Format_RGB32 destStoreARGB32, // Format_ARGB32, 0, // Format_ARGB32_Premultiplied destStoreRGB16, // Format_RGB16 SPANFUNC_POINTER_DESTSTORE(qargb8565), // Format_ARGB8565_Premultiplied SPANFUNC_POINTER_DESTSTORE(qrgb666), // Format_RGB666 SPANFUNC_POINTER_DESTSTORE(qargb6666), // Format_ARGB6666_Premultiplied SPANFUNC_POINTER_DESTSTORE(qrgb555), // Format_RGB555 SPANFUNC_POINTER_DESTSTORE(qargb8555), // Format_ARGB8555_Premultiplied SPANFUNC_POINTER_DESTSTORE(qrgb888), // Format_RGB888 SPANFUNC_POINTER_DESTSTORE(qrgb444), // Format_RGB444 SPANFUNC_POINTER_DESTSTORE(qargb4444) // Format_ARGB4444_Premultiplied }; /* Source fetches This is a bit more complicated, as we need several fetch routines for every surface type We need 5 fetch methods per surface type: untransformed transformed (tiled and not tiled) transformed bilinear (tiled and not tiled) We don't need bounds checks for untransformed, but we need them for the other ones. The generic implementation does pixel by pixel fetches */ template Q_STATIC_TEMPLATE_FUNCTION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *rgb); template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *rgb) { bool pixel = scanLine[x>>3] & (0x80 >> (x & 7)); if (rgb) return PREMUL(rgb->at(pixel ? 1 : 0)); return pixel ? 0xff000000 : 0xffffffff; } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *rgb) { bool pixel = scanLine[x>>3] & (0x1 << (x & 7)); if (rgb) return PREMUL(rgb->at(pixel ? 1 : 0)); return pixel ? 0xff000000 : 0xffffffff; } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *rgb) { return PREMUL(rgb->at(scanLine[x])); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { return PREMUL(((const uint *)scanLine)[x]); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { return ((const uint *)scanLine)[x]; } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { return qConvertRgb16To32(((const ushort *)scanLine)[x]); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { const qargb8565 color = reinterpret_cast(scanLine)[x]; return qt_colorConvert(color, 0); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { const qrgb666 color = reinterpret_cast(scanLine)[x]; return qt_colorConvert(color, 0); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { const qargb6666 color = reinterpret_cast(scanLine)[x]; return qt_colorConvert(color, 0); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { const qrgb555 color = reinterpret_cast(scanLine)[x]; return qt_colorConvert(color, 0); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { const qargb8555 color = reinterpret_cast(scanLine)[x]; return qt_colorConvert(color, 0); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { const qrgb888 color = reinterpret_cast(scanLine)[x]; return qt_colorConvert(color, 0); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { const qrgb444 color = reinterpret_cast(scanLine)[x]; return qt_colorConvert(color, 0); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *scanLine, int x, const QVector *) { const qargb4444 color = reinterpret_cast(scanLine)[x]; return qt_colorConvert(color, 0); } template<> Q_STATIC_TEMPLATE_SPECIALIZATION uint QT_FASTCALL qt_fetchPixel(const uchar *, int , const QVector *) { return 0; } typedef uint (QT_FASTCALL *FetchPixelProc)(const uchar *scanLine, int x, const QVector *); #define SPANFUNC_POINTER_FETCHPIXEL(Arg) qt_fetchPixel static const FetchPixelProc fetchPixelProc[QImage::NImageFormats] = { 0, SPANFUNC_POINTER_FETCHPIXEL(Format_Mono), SPANFUNC_POINTER_FETCHPIXEL(Format_MonoLSB), SPANFUNC_POINTER_FETCHPIXEL(Format_Indexed8), SPANFUNC_POINTER_FETCHPIXEL(Format_ARGB32_Premultiplied), SPANFUNC_POINTER_FETCHPIXEL(Format_ARGB32), SPANFUNC_POINTER_FETCHPIXEL(Format_ARGB32_Premultiplied), SPANFUNC_POINTER_FETCHPIXEL(Format_RGB16), SPANFUNC_POINTER_FETCHPIXEL(Format_ARGB8565_Premultiplied), SPANFUNC_POINTER_FETCHPIXEL(Format_RGB666), SPANFUNC_POINTER_FETCHPIXEL(Format_ARGB6666_Premultiplied), SPANFUNC_POINTER_FETCHPIXEL(Format_RGB555), SPANFUNC_POINTER_FETCHPIXEL(Format_ARGB8555_Premultiplied), SPANFUNC_POINTER_FETCHPIXEL(Format_RGB888), SPANFUNC_POINTER_FETCHPIXEL(Format_RGB444), SPANFUNC_POINTER_FETCHPIXEL(Format_ARGB4444_Premultiplied) }; enum TextureBlendType { BlendUntransformed, BlendTiled, BlendTransformed, BlendTransformedTiled, BlendTransformedBilinear, BlendTransformedBilinearTiled, NBlendTypes }; template Q_STATIC_TEMPLATE_FUNCTION const uint * QT_FASTCALL qt_fetchUntransformed(uint *buffer, const Operator *, const QSpanData *data, int y, int x, int length) { const uchar *scanLine = data->texture.scanLine(y); for (int i = 0; i < length; ++i) buffer[i] = qt_fetchPixel(scanLine, x + i, data->texture.colorTable); return buffer; } template <> Q_STATIC_TEMPLATE_SPECIALIZATION const uint * QT_FASTCALL qt_fetchUntransformed(uint *, const Operator *, const QSpanData *data, int y, int x, int) { const uchar *scanLine = data->texture.scanLine(y); return ((const uint *)scanLine) + x; } template /* either BlendTransformed or BlendTransformedTiled */ Q_STATIC_TEMPLATE_FUNCTION const uint * QT_FASTCALL fetchTransformed(uint *buffer, const Operator *, const QSpanData *data, int y, int x, int length) { FetchPixelProc fetch = fetchPixelProc[data->texture.format]; int image_width = data->texture.width; int image_height = data->texture.height; const qreal cx = x + 0.5; const qreal cy = y + 0.5; const uint *end = buffer + length; uint *b = buffer; if (data->fast_matrix) { // The increment pr x in the scanline int fdx = (int)(data->m11 * fixed_scale); int fdy = (int)(data->m12 * fixed_scale); int fx = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale); int fy = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale); while (b < end) { int px = fx >> 16; int py = fy >> 16; if (blendType == BlendTransformedTiled) { px %= image_width; py %= image_height; if (px < 0) px += image_width; if (py < 0) py += image_height; const uchar *scanLine = data->texture.scanLine(py); *b = fetch(scanLine, px, data->texture.colorTable); } else { if ((px < 0) || (px >= image_width) || (py < 0) || (py >= image_height)) { *b = uint(0); } else { const uchar *scanLine = data->texture.scanLine(py); *b = fetch(scanLine, px, data->texture.colorTable); } } fx += fdx; fy += fdy; ++b; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; qreal fx = data->m21 * cy + data->m11 * cx + data->dx; qreal fy = data->m22 * cy + data->m12 * cx + data->dy; qreal fw = data->m23 * cy + data->m13 * cx + data->m33; while (b < end) { const qreal iw = fw == 0 ? 1 : 1 / fw; const qreal tx = fx * iw; const qreal ty = fy * iw; int px = int(tx) - (tx < 0); int py = int(ty) - (ty < 0); if (blendType == BlendTransformedTiled) { px %= image_width; py %= image_height; if (px < 0) px += image_width; if (py < 0) py += image_height; const uchar *scanLine = data->texture.scanLine(py); *b = fetch(scanLine, px, data->texture.colorTable); } else { if ((px < 0) || (px >= image_width) || (py < 0) || (py >= image_height)) { *b = uint(0); } else { const uchar *scanLine = data->texture.scanLine(py); *b = fetch(scanLine, px, data->texture.colorTable); } } fx += fdx; fy += fdy; fw += fdw; //force increment to avoid /0 if (!fw) { fw += fdw; } ++b; } } return buffer; } template /* blendType = BlendTransformedBilinear or BlendTransformedBilinearTiled */ Q_STATIC_TEMPLATE_FUNCTION const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator *, const QSpanData *data, int y, int x, int length) { FetchPixelProc fetch = (format != QImage::Format_Invalid) ? FetchPixelProc(qt_fetchPixel) : fetchPixelProc[data->texture.format]; int image_width = data->texture.width; int image_height = data->texture.height; const qreal cx = x + 0.5; const qreal cy = y + 0.5; const uint *end = buffer + length; uint *b = buffer; if (data->fast_matrix) { // The increment pr x in the scanline int fdx = (int)(data->m11 * fixed_scale); int fdy = (int)(data->m12 * fixed_scale); int fx = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale); int fy = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale); fx -= half_point; fy -= half_point; while (b < end) { int x1 = (fx >> 16); int x2 = x1 + 1; int y1 = (fy >> 16); int y2 = y1 + 1; int distx = ((fx - (x1 << 16)) >> 8); int disty = ((fy - (y1 << 16)) >> 8); int idistx = 256 - distx; int idisty = 256 - disty; if (blendType == BlendTransformedBilinearTiled) { x1 %= image_width; x2 %= image_width; y1 %= image_height; y2 %= image_height; if (x1 < 0) x1 += image_width; if (x2 < 0) x2 += image_width; if (y1 < 0) y1 += image_height; if (y2 < 0) y2 += image_height; Q_ASSERT(x1 >= 0 && x1 < image_width); Q_ASSERT(x2 >= 0 && x2 < image_width); Q_ASSERT(y1 >= 0 && y1 < image_height); Q_ASSERT(y2 >= 0 && y2 < image_height); } else { x1 = qBound(0, x1, image_width - 1); x2 = qBound(0, x2, image_width - 1); y1 = qBound(0, y1, image_height - 1); y2 = qBound(0, y2, image_height - 1); } const uchar *s1 = data->texture.scanLine(y1); const uchar *s2 = data->texture.scanLine(y2); uint tl = fetch(s1, x1, data->texture.colorTable); uint tr = fetch(s1, x2, data->texture.colorTable); uint bl = fetch(s2, x1, data->texture.colorTable); uint br = fetch(s2, x2, data->texture.colorTable); uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx); uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx); *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty); fx += fdx; fy += fdy; ++b; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; qreal fx = data->m21 * cy + data->m11 * cx + data->dx; qreal fy = data->m22 * cy + data->m12 * cx + data->dy; qreal fw = data->m23 * cy + data->m13 * cx + data->m33; while (b < end) { const qreal iw = fw == 0 ? 1 : 1 / fw; const qreal px = fx * iw - 0.5; const qreal py = fy * iw - 0.5; int x1 = int(px) - (px < 0); int x2 = x1 + 1; int y1 = int(py) - (py < 0); int y2 = y1 + 1; int distx = int((px - x1) * 256); int disty = int((py - y1) * 256); int idistx = 256 - distx; int idisty = 256 - disty; if (blendType == BlendTransformedBilinearTiled) { x1 %= image_width; x2 %= image_width; y1 %= image_height; y2 %= image_height; if (x1 < 0) x1 += image_width; if (x2 < 0) x2 += image_width; if (y1 < 0) y1 += image_height; if (y2 < 0) y2 += image_height; Q_ASSERT(x1 >= 0 && x1 < image_width); Q_ASSERT(x2 >= 0 && x2 < image_width); Q_ASSERT(y1 >= 0 && y1 < image_height); Q_ASSERT(y2 >= 0 && y2 < image_height); } else { x1 = qBound(0, x1, image_width - 1); x2 = qBound(0, x2, image_width - 1); y1 = qBound(0, y1, image_height - 1); y2 = qBound(0, y2, image_height - 1); } const uchar *s1 = data->texture.scanLine(y1); const uchar *s2 = data->texture.scanLine(y2); uint tl = fetch(s1, x1, data->texture.colorTable); uint tr = fetch(s1, x2, data->texture.colorTable); uint bl = fetch(s2, x1, data->texture.colorTable); uint br = fetch(s2, x2, data->texture.colorTable); uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx); uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx); *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty); fx += fdx; fy += fdy; fw += fdw; //force increment to avoid /0 if (!fw) { fw += fdw; } ++b; } } return buffer; } #define SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Arg) qt_fetchUntransformed static const SourceFetchProc sourceFetch[NBlendTypes][QImage::NImageFormats] = { // Untransformed { 0, // Invalid SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_Mono), // Mono SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_MonoLSB), // MonoLsb SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_Indexed8), // Indexed8 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB32_Premultiplied), // RGB32 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB32), // ARGB32 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB32_Premultiplied), // ARGB32_Premultiplied SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB16), // RGB16 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB8565_Premultiplied),// ARGB8565_Premultiplied SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB666), // RGB666 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB6666_Premultiplied),// ARGB6666_Premultiplied SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB555), // RGB555 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB8555_Premultiplied),// ARGB8555_Premultiplied SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB888), // RGB888 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB444), // RGB444 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB4444_Premultiplied) // ARGB4444_Premultiplied }, // Tiled { 0, // Invalid SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_Mono), // Mono SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_MonoLSB), // MonoLsb SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_Indexed8), // Indexed8 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB32_Premultiplied), // RGB32 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB32), // ARGB32 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB32_Premultiplied), // ARGB32_Premultiplied SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB16), // RGB16 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB8565_Premultiplied),// ARGB8565_Premultiplied SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB666), // RGB666 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB6666_Premultiplied),// ARGB6666_Premultiplied SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB555), // RGB555 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB8555_Premultiplied),// ARGB8555_Premultiplied SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB888), // RGB888 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_RGB444), // RGB444 SPANFUNC_POINTER_FETCHHUNTRANSFORMED(Format_ARGB4444_Premultiplied) // ARGB4444_Premultiplied }, // Transformed { 0, // Invalid fetchTransformed, // Mono fetchTransformed, // MonoLsb fetchTransformed, // Indexed8 fetchTransformed, // RGB32 fetchTransformed, // ARGB32 fetchTransformed, // ARGB32_Premultiplied fetchTransformed, // RGB16 fetchTransformed, // ARGB8565_Premultiplied fetchTransformed, // RGB666 fetchTransformed, // ARGB6666_Premultiplied fetchTransformed, // RGB555 fetchTransformed, // ARGB8555_Premultiplied fetchTransformed, // RGB888 fetchTransformed, // RGB444 fetchTransformed, // ARGB4444_Premultiplied }, { 0, // TransformedTiled fetchTransformed, // Mono fetchTransformed, // MonoLsb fetchTransformed, // Indexed8 fetchTransformed, // RGB32 fetchTransformed, // ARGB32 fetchTransformed, // ARGB32_Premultiplied fetchTransformed, // RGB16 fetchTransformed, // ARGB8565_Premultiplied fetchTransformed, // RGB666 fetchTransformed, // ARGB6666_Premultiplied fetchTransformed, // RGB555 fetchTransformed, // ARGB8555_Premultiplied fetchTransformed, // RGB888 fetchTransformed, // RGB444 fetchTransformed, // ARGB4444_Premultiplied }, { 0, // Bilinear fetchTransformedBilinear, // Mono fetchTransformedBilinear, // MonoLsb fetchTransformedBilinear, // Indexed8 fetchTransformedBilinear, // RGB32 fetchTransformedBilinear, // ARGB32 fetchTransformedBilinear, // ARGB32_Premultiplied fetchTransformedBilinear, // RGB16 fetchTransformedBilinear, // ARGB8565_Premultiplied fetchTransformedBilinear, // RGB666 fetchTransformedBilinear, // ARGB6666_Premultiplied fetchTransformedBilinear, // RGB555 fetchTransformedBilinear, // ARGB8555_Premultiplied fetchTransformedBilinear, // RGB888 fetchTransformedBilinear, // RGB444 fetchTransformedBilinear // ARGB4444_Premultiplied }, { 0, // BilinearTiled fetchTransformedBilinear, // Mono fetchTransformedBilinear, // MonoLsb fetchTransformedBilinear, // Indexed8 fetchTransformedBilinear, // RGB32 fetchTransformedBilinear, // ARGB32 fetchTransformedBilinear, // ARGB32_Premultiplied fetchTransformedBilinear, // RGB16 fetchTransformedBilinear, // ARGB8565_Premultiplied fetchTransformedBilinear, // RGB666 fetchTransformedBilinear, // ARGB6666_Premultiplied fetchTransformedBilinear, // RGB555 fetchTransformedBilinear, // ARGB8555_Premultiplied fetchTransformedBilinear, // RGB888 fetchTransformedBilinear, // RGB444 fetchTransformedBilinear // ARGB4444_Premultiplied }, }; static inline uint qt_gradient_pixel(const QGradientData *data, qreal pos) { int ipos = int(pos * (GRADIENT_STOPTABLE_SIZE - 1) + 0.5); // calculate the actual offset. if (ipos < 0 || ipos >= GRADIENT_STOPTABLE_SIZE) { if (data->spread == QGradient::RepeatSpread) { ipos = ipos % GRADIENT_STOPTABLE_SIZE; ipos = ipos < 0 ? GRADIENT_STOPTABLE_SIZE + ipos : ipos; } else if (data->spread == QGradient::ReflectSpread) { const int limit = GRADIENT_STOPTABLE_SIZE * 2 - 1; ipos = ipos % limit; ipos = ipos < 0 ? limit + ipos : ipos; ipos = ipos >= GRADIENT_STOPTABLE_SIZE ? limit - ipos : ipos; } else { if (ipos < 0) ipos = 0; else if (ipos >= GRADIENT_STOPTABLE_SIZE) ipos = GRADIENT_STOPTABLE_SIZE-1; } } Q_ASSERT(ipos >= 0); Q_ASSERT(ipos < GRADIENT_STOPTABLE_SIZE); return data->colorTable[ipos]; } #define FIXPT_BITS 8 #define FIXPT_SIZE (1<> FIXPT_BITS; // calculate the actual offset. if (ipos < 0 || ipos >= GRADIENT_STOPTABLE_SIZE) { if (data->spread == QGradient::RepeatSpread) { ipos = ipos % GRADIENT_STOPTABLE_SIZE; ipos = ipos < 0 ? GRADIENT_STOPTABLE_SIZE + ipos : ipos; } else if (data->spread == QGradient::ReflectSpread) { const int limit = GRADIENT_STOPTABLE_SIZE * 2 - 1; ipos = ipos % limit; ipos = ipos < 0 ? limit + ipos : ipos; ipos = ipos >= GRADIENT_STOPTABLE_SIZE ? limit - ipos : ipos; } else { if (ipos < 0) ipos = 0; else if (ipos >= GRADIENT_STOPTABLE_SIZE) ipos = GRADIENT_STOPTABLE_SIZE-1; } } Q_ASSERT(ipos >= 0); Q_ASSERT(ipos < GRADIENT_STOPTABLE_SIZE); return data->colorTable[ipos]; } static void QT_FASTCALL getLinearGradientValues(LinearGradientValues *v, const QSpanData *data) { v->dx = data->gradient.linear.end.x - data->gradient.linear.origin.x; v->dy = data->gradient.linear.end.y - data->gradient.linear.origin.y; v->l = v->dx * v->dx + v->dy * v->dy; v->off = 0; if (v->l != 0) { v->dx /= v->l; v->dy /= v->l; v->off = -v->dx * data->gradient.linear.origin.x - v->dy * data->gradient.linear.origin.y; } } static const uint * QT_FASTCALL fetchLinearGradient(uint *buffer, const Operator *op, const QSpanData *data, int y, int x, int length) { const uint *b = buffer; qreal t, inc; bool affine = true; qreal rx=0, ry=0; if (op->linear.l == 0) { t = inc = 0; } else { rx = data->m21 * (y + 0.5) + data->m11 * (x + 0.5) + data->dx; ry = data->m22 * (y + 0.5) + data->m12 * (x + 0.5) + data->dy; t = op->linear.dx*rx + op->linear.dy*ry + op->linear.off; inc = op->linear.dx * data->m11 + op->linear.dy * data->m12; affine = !data->m13 && !data->m23; if (affine) { t *= (GRADIENT_STOPTABLE_SIZE - 1); inc *= (GRADIENT_STOPTABLE_SIZE - 1); } } const uint *end = buffer + length; if (affine) { if (inc > -1e-5 && inc < 1e-5) { QT_MEMFILL_UINT(buffer, length, qt_gradient_pixel_fixed(&data->gradient, int(t * FIXPT_SIZE))); } else { if (t+inc*length < qreal(INT_MAX >> (FIXPT_BITS + 1)) && t+inc*length > qreal(INT_MIN >> (FIXPT_BITS + 1))) { // we can use fixed point math int t_fixed = int(t * FIXPT_SIZE); int inc_fixed = int(inc * FIXPT_SIZE); while (buffer < end) { *buffer = qt_gradient_pixel_fixed(&data->gradient, t_fixed); t_fixed += inc_fixed; ++buffer; } } else { // we have to fall back to float math while (buffer < end) { *buffer = qt_gradient_pixel(&data->gradient, t/GRADIENT_STOPTABLE_SIZE); t += inc; ++buffer; } } } } else { // fall back to float math here as well qreal rw = data->m23 * (y + 0.5) + data->m13 * (x + 0.5) + data->m33; while (buffer < end) { qreal x = rx/rw; qreal y = ry/rw; t = (op->linear.dx*x + op->linear.dy *y) + op->linear.off; *buffer = qt_gradient_pixel(&data->gradient, t); rx += data->m11; ry += data->m12; rw += data->m13; if (!rw) { rw += data->m13; } ++buffer; } } return b; } static inline qreal determinant(qreal a, qreal b, qreal c) { return (b * b) - (4 * a * c); } // function to evaluate real roots static inline qreal realRoots(qreal a, qreal b, qreal detSqrt) { return (-b + detSqrt)/(2 * a); } static inline qreal qSafeSqrt(qreal x) { return x > 0 ? qSqrt(x) : 0; } static void QT_FASTCALL getRadialGradientValues(RadialGradientValues *v, const QSpanData *data) { v->dx = data->gradient.radial.center.x - data->gradient.radial.focal.x; v->dy = data->gradient.radial.center.y - data->gradient.radial.focal.y; v->a = data->gradient.radial.radius*data->gradient.radial.radius - v->dx*v->dx - v->dy*v->dy; } static const uint * QT_FASTCALL fetchRadialGradient(uint *buffer, const Operator *op, const QSpanData *data, int y, int x, int length) { const uint *b = buffer; qreal rx = data->m21 * (y + 0.5) + data->dx + data->m11 * (x + 0.5); qreal ry = data->m22 * (y + 0.5) + data->dy + data->m12 * (x + 0.5); bool affine = !data->m13 && !data->m23; //qreal r = data->gradient.radial.radius; const uint *end = buffer + length; if (affine) { rx -= data->gradient.radial.focal.x; ry -= data->gradient.radial.focal.y; qreal inv_a = 1 / qreal(2 * op->radial.a); const qreal delta_rx = data->m11; const qreal delta_ry = data->m12; qreal b = 2*(rx * op->radial.dx + ry * op->radial.dy); qreal delta_b = 2*(delta_rx * op->radial.dx + delta_ry * op->radial.dy); const qreal b_delta_b = 2 * b * delta_b; const qreal delta_b_delta_b = 2 * delta_b * delta_b; const qreal bb = b * b; const qreal delta_bb = delta_b * delta_b; b *= inv_a; delta_b *= inv_a; const qreal rxrxryry = rx * rx + ry * ry; const qreal delta_rxrxryry = delta_rx * delta_rx + delta_ry * delta_ry; const qreal rx_plus_ry = 2*(rx * delta_rx + ry * delta_ry); const qreal delta_rx_plus_ry = 2 * delta_rxrxryry; inv_a *= inv_a; qreal det = (bb + 4 * op->radial.a * rxrxryry) * inv_a; qreal delta_det = (b_delta_b + delta_bb + 4 * op->radial.a * (rx_plus_ry + delta_rxrxryry)) * inv_a; const qreal delta_delta_det = (delta_b_delta_b + 4 * op->radial.a * delta_rx_plus_ry) * inv_a; while (buffer < end) { *buffer = qt_gradient_pixel(&data->gradient, qSafeSqrt(det) - b); det += delta_det; delta_det += delta_delta_det; b += delta_b; ++buffer; } } else { qreal rw = data->m23 * (y + 0.5) + data->m33 + data->m13 * (x + 0.5); if (!rw) rw = 1; while (buffer < end) { qreal gx = rx/rw - data->gradient.radial.focal.x; qreal gy = ry/rw - data->gradient.radial.focal.y; qreal b = 2*(gx*op->radial.dx + gy*op->radial.dy); qreal det = determinant(op->radial.a, b , -(gx*gx + gy*gy)); qreal s = realRoots(op->radial.a, b, qSafeSqrt(det)); *buffer = qt_gradient_pixel(&data->gradient, s); rx += data->m11; ry += data->m12; rw += data->m13; if (!rw) { rw += data->m13; } ++buffer; } } return b; } static const uint * QT_FASTCALL fetchConicalGradient(uint *buffer, const Operator *, const QSpanData *data, int y, int x, int length) { const uint *b = buffer; qreal rx = data->m21 * (y + 0.5) + data->dx + data->m11 * (x + 0.5); qreal ry = data->m22 * (y + 0.5) + data->dy + data->m12 * (x + 0.5); bool affine = !data->m13 && !data->m23; const uint *end = buffer + length; if (affine) { rx -= data->gradient.conical.center.x; ry -= data->gradient.conical.center.y; while (buffer < end) { qreal angle = atan2(ry, rx) + data->gradient.conical.angle; *buffer = qt_gradient_pixel(&data->gradient, 1 - angle / (2*Q_PI)); rx += data->m11; ry += data->m12; ++buffer; } } else { qreal rw = data->m23 * (y + 0.5) + data->m33 + data->m13 * (x + 0.5); if (!rw) rw = 1; while (buffer < end) { qreal angle = atan2(ry/rw - data->gradient.conical.center.x, rx/rw - data->gradient.conical.center.y) + data->gradient.conical.angle; *buffer = qt_gradient_pixel(&data->gradient, 1. - angle / (2*Q_PI)); rx += data->m11; ry += data->m12; rw += data->m13; if (!rw) { rw += data->m13; } ++buffer; } } return b; } /* The constant alpha factor describes an alpha factor that gets applied to the result of the composition operation combining it with the destination. The intent is that if const_alpha == 0. we get back dest, and if const_alpha == 1. we get the unmodified operation result = src op dest dest = result * const_alpha + dest * (1. - const_alpha) This means that in the comments below, the first line is the const_alpha==255 case, the second line the general one. In the lines below: s == src, sa == alpha(src), sia = 1 - alpha(src) d == dest, da == alpha(dest), dia = 1 - alpha(dest) ca = const_alpha, cia = 1 - const_alpha The methods exist in two variants. One where we have a constant source, the other where the source is an array of pixels. */ /* result = 0 d = d * cia */ static void QT_FASTCALL comp_func_solid_Clear(uint *dest, int length, uint, uint const_alpha) { if (const_alpha == 255) { QT_MEMFILL_UINT(dest, length, 0); } else { int ialpha = 255 - const_alpha; for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(dest[i], ialpha); } } static void QT_FASTCALL comp_func_Clear(uint *dest, const uint *, int length, uint const_alpha) { if (const_alpha == 255) { QT_MEMFILL_UINT(dest, length, 0); } else { int ialpha = 255 - const_alpha; for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(dest[i], ialpha); } } /* result = s dest = s * ca + d * cia */ static void QT_FASTCALL comp_func_solid_Source(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) { QT_MEMFILL_UINT(dest, length, color); } else { int ialpha = 255 - const_alpha; color = BYTE_MUL(color, const_alpha); for (int i = 0; i < length; ++i) dest[i] = color + BYTE_MUL(dest[i], ialpha); } } static void QT_FASTCALL comp_func_Source(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { ::memcpy(dest, src, length * sizeof(uint)); } else { int ialpha = 255 - const_alpha; for (int i = 0; i < length; ++i) dest[i] = INTERPOLATE_PIXEL_255(src[i], const_alpha, dest[i], ialpha); } } static void QT_FASTCALL comp_func_solid_Destination(uint *, int, uint, uint) { } static void QT_FASTCALL comp_func_Destination(uint *, const uint *, int, uint) { } /* result = s + d * sia dest = (s + d * sia) * ca + d * cia = s * ca + d * (sia * ca + cia) = s * ca + d * (1 - sa*ca) */ static void QT_FASTCALL comp_func_solid_SourceOver(uint *dest, int length, uint color, uint const_alpha) { if ((const_alpha & qAlpha(color)) == 255) { QT_MEMFILL_UINT(dest, length, color); } else { if (const_alpha != 255) color = BYTE_MUL(color, const_alpha); for (int i = 0; i < length; ++i) dest[i] = color + BYTE_MUL(dest[i], qAlpha(~color)); } } static void QT_FASTCALL comp_func_SourceOver(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) { uint s = src[i]; dest[i] = s + BYTE_MUL(dest[i], qAlpha(~s)); } } else { for (int i = 0; i < length; ++i) { uint s = BYTE_MUL(src[i], const_alpha); dest[i] = s + BYTE_MUL(dest[i], qAlpha(~s)); } } } /* result = d + s * dia dest = (d + s * dia) * ca + d * cia = d + s * dia * ca */ static void QT_FASTCALL comp_func_solid_DestinationOver(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha != 255) color = BYTE_MUL(color, const_alpha); for (int i = 0; i < length; ++i) { uint d = dest[i]; dest[i] = d + BYTE_MUL(color, qAlpha(~d)); } } static void QT_FASTCALL comp_func_DestinationOver(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) { uint d = dest[i]; dest[i] = d + BYTE_MUL(src[i], qAlpha(~d)); } } else { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = BYTE_MUL(src[i], const_alpha); dest[i] = d + BYTE_MUL(s, qAlpha(~d)); } } } /* result = s * da dest = s * da * ca + d * cia */ static void QT_FASTCALL comp_func_solid_SourceIn(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(color, qAlpha(dest[i])); } else { color = BYTE_MUL(color, const_alpha); uint cia = 255 - const_alpha; for (int i = 0; i < length; ++i) { uint d = dest[i]; dest[i] = INTERPOLATE_PIXEL_255(color, qAlpha(d), d, cia); } } } static void QT_FASTCALL comp_func_SourceIn(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(src[i], qAlpha(dest[i])); } else { uint cia = 255 - const_alpha; for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = BYTE_MUL(src[i], const_alpha); dest[i] = INTERPOLATE_PIXEL_255(s, qAlpha(d), d, cia); } } } /* result = d * sa dest = d * sa * ca + d * cia = d * (sa * ca + cia) */ static void QT_FASTCALL comp_func_solid_DestinationIn(uint *dest, int length, uint color, uint const_alpha) { uint a = qAlpha(color); if (const_alpha != 255) { a = BYTE_MUL(a, const_alpha) + 255 - const_alpha; } for (int i = 0; i < length; ++i) { dest[i] = BYTE_MUL(dest[i], a); } } static void QT_FASTCALL comp_func_DestinationIn(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(dest[i], qAlpha(src[i])); } else { int cia = 255 - const_alpha; for (int i = 0; i < length; ++i) { uint a = BYTE_MUL(qAlpha(src[i]), const_alpha) + cia; dest[i] = BYTE_MUL(dest[i], a); } } } /* result = s * dia dest = s * dia * ca + d * cia */ static void QT_FASTCALL comp_func_solid_SourceOut(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(color, qAlpha(~dest[i])); } else { color = BYTE_MUL(color, const_alpha); int cia = 255 - const_alpha; for (int i = 0; i < length; ++i) { uint d = dest[i]; dest[i] = INTERPOLATE_PIXEL_255(color, qAlpha(~d), d, cia); } } } static void QT_FASTCALL comp_func_SourceOut(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(src[i], qAlpha(~dest[i])); } else { int cia = 255 - const_alpha; for (int i = 0; i < length; ++i) { uint s = BYTE_MUL(src[i], const_alpha); uint d = dest[i]; dest[i] = INTERPOLATE_PIXEL_255(s, qAlpha(~d), d, cia); } } } /* result = d * sia dest = d * sia * ca + d * cia = d * (sia * ca + cia) */ static void QT_FASTCALL comp_func_solid_DestinationOut(uint *dest, int length, uint color, uint const_alpha) { uint a = qAlpha(~color); if (const_alpha != 255) a = BYTE_MUL(a, const_alpha) + 255 - const_alpha; for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(dest[i], a); } static void QT_FASTCALL comp_func_DestinationOut(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) dest[i] = BYTE_MUL(dest[i], qAlpha(~src[i])); } else { int cia = 255 - const_alpha; for (int i = 0; i < length; ++i) { uint sia = BYTE_MUL(qAlpha(~src[i]), const_alpha) + cia; dest[i] = BYTE_MUL(dest[i], sia); } } } /* result = s*da + d*sia dest = s*da*ca + d*sia*ca + d *cia = s*ca * da + d * (sia*ca + cia) = s*ca * da + d * (1 - sa*ca) */ static void QT_FASTCALL comp_func_solid_SourceAtop(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha != 255) { color = BYTE_MUL(color, const_alpha); } uint sia = qAlpha(~color); for (int i = 0; i < length; ++i) dest[i] = INTERPOLATE_PIXEL_255(color, qAlpha(dest[i]), dest[i], sia); } static void QT_FASTCALL comp_func_SourceAtop(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) { uint s = src[i]; uint d = dest[i]; dest[i] = INTERPOLATE_PIXEL_255(s, qAlpha(d), d, qAlpha(~s)); } } else { for (int i = 0; i < length; ++i) { uint s = BYTE_MUL(src[i], const_alpha); uint d = dest[i]; dest[i] = INTERPOLATE_PIXEL_255(s, qAlpha(d), d, qAlpha(~s)); } } } /* result = d*sa + s*dia dest = d*sa*ca + s*dia*ca + d *cia = s*ca * dia + d * (sa*ca + cia) */ static void QT_FASTCALL comp_func_solid_DestinationAtop(uint *dest, int length, uint color, uint const_alpha) { uint a = qAlpha(color); if (const_alpha != 255) { color = BYTE_MUL(color, const_alpha); a = qAlpha(color) + 255 - const_alpha; } for (int i = 0; i < length; ++i) { uint d = dest[i]; dest[i] = INTERPOLATE_PIXEL_255(d, a, color, qAlpha(~d)); } } static void QT_FASTCALL comp_func_DestinationAtop(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) { uint s = src[i]; uint d = dest[i]; dest[i] = INTERPOLATE_PIXEL_255(d, qAlpha(s), s, qAlpha(~d)); } } else { int cia = 255 - const_alpha; for (int i = 0; i < length; ++i) { uint s = BYTE_MUL(src[i], const_alpha); uint d = dest[i]; uint a = qAlpha(s) + cia; dest[i] = INTERPOLATE_PIXEL_255(d, a, s, qAlpha(~d)); } } } /* result = d*sia + s*dia dest = d*sia*ca + s*dia*ca + d *cia = s*ca * dia + d * (sia*ca + cia) = s*ca * dia + d * (1 - sa*ca) */ static void QT_FASTCALL comp_func_solid_XOR(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha != 255) color = BYTE_MUL(color, const_alpha); uint sia = qAlpha(~color); for (int i = 0; i < length; ++i) { uint d = dest[i]; dest[i] = INTERPOLATE_PIXEL_255(color, qAlpha(~d), d, sia); } } static void QT_FASTCALL comp_func_XOR(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; dest[i] = INTERPOLATE_PIXEL_255(s, qAlpha(~d), d, qAlpha(~s)); } } else { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = BYTE_MUL(src[i], const_alpha); dest[i] = INTERPOLATE_PIXEL_255(s, qAlpha(~d), d, qAlpha(~s)); } } } static const uint AMASK = 0xff000000; static const uint RMASK = 0x00ff0000; static const uint GMASK = 0x0000ff00; static const uint BMASK = 0x000000ff; struct QFullCoverage { inline void store(uint *dest, const uint src) const { *dest = src; } }; struct QPartialCoverage { inline QPartialCoverage(uint const_alpha) : ca(const_alpha) , ica(255 - const_alpha) { } inline void store(uint *dest, const uint src) const { *dest = INTERPOLATE_PIXEL_255(src, ca, *dest, ica); } private: const uint ca; const uint ica; }; static inline int mix_alpha(int da, int sa) { return 255 - ((255 - sa) * (255 - da) >> 8); } /* Dca' = Sca.Da + Dca.Sa + Sca.(1 - Da) + Dca.(1 - Sa) = Sca + Dca */ template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_Plus_impl(uint *dest, int length, uint color, const T &coverage) { uint s = color; for (int i = 0; i < length; ++i) { uint d = dest[i]; #define MIX(mask) (qMin(((qint64(s)&mask) + (qint64(d)&mask)), qint64(mask))) d = (MIX(AMASK) | MIX(RMASK) | MIX(GMASK) | MIX(BMASK)); #undef MIX coverage.store(&dest[i], d); } } static void QT_FASTCALL comp_func_solid_Plus(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_Plus_impl(dest, length, color, QFullCoverage()); else comp_func_solid_Plus_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_Plus_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; #define MIX(mask) (qMin(((qint64(s)&mask) + (qint64(d)&mask)), qint64(mask))) d = (MIX(AMASK) | MIX(RMASK) | MIX(GMASK) | MIX(BMASK)); #undef MIX coverage.store(&dest[i], d); } } static void QT_FASTCALL comp_func_Plus(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_Plus_impl(dest, src, length, QFullCoverage()); else comp_func_Plus_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* Dca' = Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa) */ static inline int multiply_op(int dst, int src, int da, int sa) { return qt_div_255(src * dst + src * (255 - da) + dst * (255 - sa)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_Multiply_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) multiply_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_Multiply(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_Multiply_impl(dest, length, color, QFullCoverage()); else comp_func_solid_Multiply_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_Multiply_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) multiply_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_Multiply(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_Multiply_impl(dest, src, length, QFullCoverage()); else comp_func_Multiply_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* Dca' = (Sca.Da + Dca.Sa - Sca.Dca) + Sca.(1 - Da) + Dca.(1 - Sa) = Sca + Dca - Sca.Dca */ template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_Screen_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) 255 - qt_div_255((255-a) * (255-b)) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_Screen(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_Screen_impl(dest, length, color, QFullCoverage()); else comp_func_solid_Screen_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_Screen_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) 255 - (((255-a) * (255-b)) >> 8) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_Screen(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_Screen_impl(dest, src, length, QFullCoverage()); else comp_func_Screen_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* if 2.Dca < Da Dca' = 2.Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa) otherwise Dca' = Sa.Da - 2.(Da - Dca).(Sa - Sca) + Sca.(1 - Da) + Dca.(1 - Sa) */ static inline int overlay_op(int dst, int src, int da, int sa) { const int temp = src * (255 - da) + dst * (255 - sa); if (2 * dst < da) return qt_div_255(2 * src * dst + temp); else return qt_div_255(sa * da - 2 * (da - dst) * (sa - src) + temp); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_Overlay_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) overlay_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_Overlay(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_Overlay_impl(dest, length, color, QFullCoverage()); else comp_func_solid_Overlay_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_Overlay_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) overlay_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_Overlay(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_Overlay_impl(dest, src, length, QFullCoverage()); else comp_func_Overlay_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* Dca' = min(Sca.Da, Dca.Sa) + Sca.(1 - Da) + Dca.(1 - Sa) Da' = Sa + Da - Sa.Da */ static inline int darken_op(int dst, int src, int da, int sa) { return qt_div_255(qMin(src * da, dst * sa) + src * (255 - da) + dst * (255 - sa)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_Darken_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) darken_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_Darken(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_Darken_impl(dest, length, color, QFullCoverage()); else comp_func_solid_Darken_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_Darken_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) darken_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_Darken(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_Darken_impl(dest, src, length, QFullCoverage()); else comp_func_Darken_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* Dca' = max(Sca.Da, Dca.Sa) + Sca.(1 - Da) + Dca.(1 - Sa) Da' = Sa + Da - Sa.Da */ static inline int lighten_op(int dst, int src, int da, int sa) { return qt_div_255(qMax(src * da, dst * sa) + src * (255 - da) + dst * (255 - sa)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_Lighten_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) lighten_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_Lighten(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_Lighten_impl(dest, length, color, QFullCoverage()); else comp_func_solid_Lighten_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_Lighten_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) lighten_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_Lighten(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_Lighten_impl(dest, src, length, QFullCoverage()); else comp_func_Lighten_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* if Sca.Da + Dca.Sa >= Sa.Da Dca' = Sa.Da + Sca.(1 - Da) + Dca.(1 - Sa) otherwise Dca' = Dca.Sa/(1-Sca/Sa) + Sca.(1 - Da) + Dca.(1 - Sa) */ static inline int color_dodge_op(int dst, int src, int da, int sa) { const int sa_da = sa * da; const int dst_sa = dst * sa; const int src_da = src * da; const int temp = src * (255 - da) + dst * (255 - sa); if (src_da + dst_sa >= sa_da) return qt_div_255(sa_da + temp); else return qt_div_255(255 * dst_sa / (255 - 255 * src / sa) + temp); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_ColorDodge_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a,b) color_dodge_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_ColorDodge(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_ColorDodge_impl(dest, length, color, QFullCoverage()); else comp_func_solid_ColorDodge_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_ColorDodge_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) color_dodge_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_ColorDodge(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_ColorDodge_impl(dest, src, length, QFullCoverage()); else comp_func_ColorDodge_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* if Sca.Da + Dca.Sa <= Sa.Da Dca' = Sca.(1 - Da) + Dca.(1 - Sa) otherwise Dca' = Sa.(Sca.Da + Dca.Sa - Sa.Da)/Sca + Sca.(1 - Da) + Dca.(1 - Sa) */ static inline int color_burn_op(int dst, int src, int da, int sa) { const int src_da = src * da; const int dst_sa = dst * sa; const int sa_da = sa * da; const int temp = src * (255 - da) + dst * (255 - sa); if (src == 0 || src_da + dst_sa <= sa_da) return qt_div_255(temp); else return qt_div_255(sa * (src_da + dst_sa - sa_da) / src + temp); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_ColorBurn_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) color_burn_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_ColorBurn(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_ColorBurn_impl(dest, length, color, QFullCoverage()); else comp_func_solid_ColorBurn_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_ColorBurn_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) color_burn_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_ColorBurn(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_ColorBurn_impl(dest, src, length, QFullCoverage()); else comp_func_ColorBurn_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* if 2.Sca < Sa Dca' = 2.Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa) otherwise Dca' = Sa.Da - 2.(Da - Dca).(Sa - Sca) + Sca.(1 - Da) + Dca.(1 - Sa) */ static inline uint hardlight_op(int dst, int src, int da, int sa) { const uint temp = src * (255 - da) + dst * (255 - sa); if (2 * src < sa) return qt_div_255(2 * src * dst + temp); else return qt_div_255(sa * da - 2 * (da - dst) * (sa - src) + temp); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_HardLight_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) hardlight_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_HardLight(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_HardLight_impl(dest, length, color, QFullCoverage()); else comp_func_solid_HardLight_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_HardLight_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) hardlight_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_HardLight(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_HardLight_impl(dest, src, length, QFullCoverage()); else comp_func_HardLight_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* if 2.Sca < Sa Dca' = Dca.(Sa - (1 - Dca/Da).(2.Sca - Sa)) + Sca.(1 - Da) + Dca.(1 - Sa) otherwise if 8.Dca <= Da Dca' = Dca.(Sa - (1 - Dca/Da).(2.Sca - Sa).(3 - 8.Dca/Da)) + Sca.(1 - Da) + Dca.(1 - Sa) otherwise Dca' = (Dca.Sa + ((Dca/Da)^(0.5).Da - Dca).(2.Sca - Sa)) + Sca.(1 - Da) + Dca.(1 - Sa) */ static inline int soft_light_op(int dst, int src, int da, int sa) { const int src2 = src << 1; const int dst_np = da != 0 ? (255 * dst) / da : 0; const int temp = (src * (255 - da) + dst * (255 - sa)) * 255; if (src2 < sa) return (dst * ((sa * 255) - (255 - dst_np) * (src2 - sa)) + temp) / 65025; else if (8 * dst <= da) return (dst * ((sa * 255) - ((255 - dst_np) * (src2 - sa) * ((3 * 255) - 8 * dst_np)) / 255) + temp) / 65025; else { // sqrt is too expensive to do three times per pixel, so skipping it for now // a future possibility is to use a LUT return ((dst * sa * 255) + (int(dst_np) * da - (dst * 255)) * (src2 - sa) + temp) / 65025; } } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_SoftLight_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) soft_light_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_SoftLight(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_SoftLight_impl(dest, length, color, QFullCoverage()); else comp_func_solid_SoftLight_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_SoftLight_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) soft_light_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_SoftLight(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_SoftLight_impl(dest, src, length, QFullCoverage()); else comp_func_SoftLight_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* Dca' = abs(Dca.Sa - Sca.Da) + Sca.(1 - Da) + Dca.(1 - Sa) = Sca + Dca - 2.min(Sca.Da, Dca.Sa) */ static inline int difference_op(int dst, int src, int da, int sa) { return src + dst - qt_div_255(2 * qMin(src * da, dst * sa)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_solid_Difference_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) difference_op(a, b, da, sa) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_Difference(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_Difference_impl(dest, length, color, QFullCoverage()); else comp_func_solid_Difference_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_Difference_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) difference_op(a, b, da, sa) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_Difference(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_Difference_impl(dest, src, length, QFullCoverage()); else comp_func_Difference_impl(dest, src, length, QPartialCoverage(const_alpha)); } /* Dca' = (Sca.Da + Dca.Sa - 2.Sca.Dca) + Sca.(1 - Da) + Dca.(1 - Sa) */ template Q_STATIC_TEMPLATE_FUNCTION inline void QT_FASTCALL comp_func_solid_Exclusion_impl(uint *dest, int length, uint color, const T &coverage) { int sa = qAlpha(color); int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); for (int i = 0; i < length; ++i) { uint d = dest[i]; int da = qAlpha(d); #define OP(a, b) (a + b - qt_div_255(2*(a*b))) int r = OP( qRed(d), sr); int b = OP( qBlue(d), sb); int g = OP(qGreen(d), sg); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_solid_Exclusion(uint *dest, int length, uint color, uint const_alpha) { if (const_alpha == 255) comp_func_solid_Exclusion_impl(dest, length, color, QFullCoverage()); else comp_func_solid_Exclusion_impl(dest, length, color, QPartialCoverage(const_alpha)); } template Q_STATIC_TEMPLATE_FUNCTION inline void comp_func_Exclusion_impl(uint *dest, const uint *src, int length, const T &coverage) { for (int i = 0; i < length; ++i) { uint d = dest[i]; uint s = src[i]; int da = qAlpha(d); int sa = qAlpha(s); #define OP(a, b) (a + b - ((a*b) >> 7)) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); int a = mix_alpha(da, sa); #undef OP coverage.store(&dest[i], qRgba(r, g, b, a)); } } static void QT_FASTCALL comp_func_Exclusion(uint *dest, const uint *src, int length, uint const_alpha) { if (const_alpha == 255) comp_func_Exclusion_impl(dest, src, length, QFullCoverage()); else comp_func_Exclusion_impl(dest, src, length, QPartialCoverage(const_alpha)); } static void QT_FASTCALL rasterop_solid_SourceOrDestination(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) *dest++ |= color; } static void QT_FASTCALL rasterop_SourceOrDestination(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) *dest++ |= *src++; } static void QT_FASTCALL rasterop_solid_SourceAndDestination(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); color |= 0xff000000; while (length--) *dest++ &= color; } static void QT_FASTCALL rasterop_SourceAndDestination(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) { *dest = (*src & *dest) | 0xff000000; ++dest; ++src; } } static void QT_FASTCALL rasterop_solid_SourceXorDestination(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); color &= 0x00ffffff; while (length--) *dest++ ^= color; } static void QT_FASTCALL rasterop_SourceXorDestination(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) { *dest = (*src ^ *dest) | 0xff000000; ++dest; ++src; } } static void QT_FASTCALL rasterop_solid_NotSourceAndNotDestination(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); color = ~color; while (length--) { *dest = (color & ~(*dest)) | 0xff000000; ++dest; } } static void QT_FASTCALL rasterop_NotSourceAndNotDestination(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) { *dest = (~(*src) & ~(*dest)) | 0xff000000; ++dest; ++src; } } static void QT_FASTCALL rasterop_solid_NotSourceOrNotDestination(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); color = ~color | 0xff000000; while (length--) { *dest = color | ~(*dest); ++dest; } } static void QT_FASTCALL rasterop_NotSourceOrNotDestination(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) { *dest = ~(*src) | ~(*dest) | 0xff000000; ++dest; ++src; } } static void QT_FASTCALL rasterop_solid_NotSourceXorDestination(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); color = ~color & 0x00ffffff; while (length--) { *dest = color ^ (*dest); ++dest; } } static void QT_FASTCALL rasterop_NotSourceXorDestination(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) { *dest = ((~(*src)) ^ (*dest)) | 0xff000000; ++dest; ++src; } } static void QT_FASTCALL rasterop_solid_NotSource(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); qt_memfill(dest, ~color | 0xff000000, length); } static void QT_FASTCALL rasterop_NotSource(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) *dest++ = ~(*src++) | 0xff000000; } static void QT_FASTCALL rasterop_solid_NotSourceAndDestination(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); color = ~color | 0xff000000; while (length--) { *dest = color & *dest; ++dest; } } static void QT_FASTCALL rasterop_NotSourceAndDestination(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) { *dest = (~(*src) & *dest) | 0xff000000; ++dest; ++src; } } static void QT_FASTCALL rasterop_solid_SourceAndNotDestination(uint *dest, int length, uint color, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) { *dest = (color & ~(*dest)) | 0xff000000; ++dest; } } static void QT_FASTCALL rasterop_SourceAndNotDestination(uint *dest, const uint *src, int length, uint const_alpha) { Q_UNUSED(const_alpha); while (length--) { *dest = (*src & ~(*dest)) | 0xff000000; ++dest; ++src; } } static const CompositionFunctionSolid functionForModeSolid_C[] = { comp_func_solid_SourceOver, comp_func_solid_DestinationOver, comp_func_solid_Clear, comp_func_solid_Source, comp_func_solid_Destination, comp_func_solid_SourceIn, comp_func_solid_DestinationIn, comp_func_solid_SourceOut, comp_func_solid_DestinationOut, comp_func_solid_SourceAtop, comp_func_solid_DestinationAtop, comp_func_solid_XOR, comp_func_solid_Plus, comp_func_solid_Multiply, comp_func_solid_Screen, comp_func_solid_Overlay, comp_func_solid_Darken, comp_func_solid_Lighten, comp_func_solid_ColorDodge, comp_func_solid_ColorBurn, comp_func_solid_HardLight, comp_func_solid_SoftLight, comp_func_solid_Difference, comp_func_solid_Exclusion, rasterop_solid_SourceOrDestination, rasterop_solid_SourceAndDestination, rasterop_solid_SourceXorDestination, rasterop_solid_NotSourceAndNotDestination, rasterop_solid_NotSourceOrNotDestination, rasterop_solid_NotSourceXorDestination, rasterop_solid_NotSource, rasterop_solid_NotSourceAndDestination, rasterop_solid_SourceAndNotDestination }; static const CompositionFunctionSolid *functionForModeSolid = functionForModeSolid_C; static const CompositionFunction functionForMode_C[] = { comp_func_SourceOver, comp_func_DestinationOver, comp_func_Clear, comp_func_Source, comp_func_Destination, comp_func_SourceIn, comp_func_DestinationIn, comp_func_SourceOut, comp_func_DestinationOut, comp_func_SourceAtop, comp_func_DestinationAtop, comp_func_XOR, comp_func_Plus, comp_func_Multiply, comp_func_Screen, comp_func_Overlay, comp_func_Darken, comp_func_Lighten, comp_func_ColorDodge, comp_func_ColorBurn, comp_func_HardLight, comp_func_SoftLight, comp_func_Difference, comp_func_Exclusion, rasterop_SourceOrDestination, rasterop_SourceAndDestination, rasterop_SourceXorDestination, rasterop_NotSourceAndNotDestination, rasterop_NotSourceOrNotDestination, rasterop_NotSourceXorDestination, rasterop_NotSource, rasterop_NotSourceAndDestination, rasterop_SourceAndNotDestination }; static const CompositionFunction *functionForMode = functionForMode_C; static TextureBlendType getBlendType(const QSpanData *data) { TextureBlendType ft; if (data->txop <= QTransform::TxTranslate) if (data->texture.type == QTextureData::Tiled) ft = BlendTiled; else ft = BlendUntransformed; else if (data->bilinear) if (data->texture.type == QTextureData::Tiled) ft = BlendTransformedBilinearTiled; else ft = BlendTransformedBilinear; else if (data->texture.type == QTextureData::Tiled) ft = BlendTransformedTiled; else ft = BlendTransformed; return ft; } static inline Operator getOperator(const QSpanData *data, const QSpan *spans, int spanCount) { Operator op; bool solidSource = false; switch(data->type) { case QSpanData::Solid: solidSource = (qAlpha(data->solid.color) == 255); break; case QSpanData::LinearGradient: solidSource = !data->gradient.alphaColor; getLinearGradientValues(&op.linear, data); op.src_fetch = fetchLinearGradient; break; case QSpanData::RadialGradient: solidSource = !data->gradient.alphaColor; getRadialGradientValues(&op.radial, data); op.src_fetch = fetchRadialGradient; break; case QSpanData::ConicalGradient: solidSource = !data->gradient.alphaColor; op.src_fetch = fetchConicalGradient; break; case QSpanData::Texture: op.src_fetch = sourceFetch[getBlendType(data)][data->texture.format]; solidSource = !data->texture.hasAlpha; default: break; } op.mode = data->rasterBuffer->compositionMode; if (op.mode == QPainter::CompositionMode_SourceOver && solidSource) op.mode = QPainter::CompositionMode_Source; op.dest_fetch = destFetchProc[data->rasterBuffer->format]; if (op.mode == QPainter::CompositionMode_Source) { switch (data->rasterBuffer->format) { case QImage::Format_RGB32: case QImage::Format_ARGB32_Premultiplied: // don't clear dest_fetch as it sets up the pointer correctly to save one copy break; default: { const QSpan *lastSpan = spans + spanCount; bool alphaSpans = false; while (spans < lastSpan) { if (spans->coverage != 255) { alphaSpans = true; break; } ++spans; } if (!alphaSpans) op.dest_fetch = 0; } } } op.dest_store = destStoreProc[data->rasterBuffer->format]; op.funcSolid = functionForModeSolid[op.mode]; op.func = functionForMode[op.mode]; return op; } // -------------------- blend methods --------------------- enum SpanMethod { RegularSpans, CallbackSpans }; #if !defined(Q_CC_SUN) static #endif void drawBufferSpan(QSpanData *data, const uint *buffer, int bufsize, int x, int y, int length, uint const_alpha) { #if defined (Q_WS_QWS) && !defined(QT_NO_RASTERCALLBACKS) data->rasterEngine->drawBufferSpan(buffer, bufsize, x, y, length, const_alpha); #else Q_UNUSED(data); Q_UNUSED(buffer); Q_UNUSED(bufsize); Q_UNUSED(x); Q_UNUSED(y); Q_UNUSED(length); Q_UNUSED(const_alpha); #endif } #if !defined(Q_CC_SUN) static #endif void blend_color_generic(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); uint buffer[buffer_size]; Operator op = getOperator(data, spans, count); while (count--) { int x = spans->x; int length = spans->len; while (length) { int l = qMin(buffer_size, length); uint *dest = op.dest_fetch ? op.dest_fetch(buffer, data->rasterBuffer, x, spans->y, l) : buffer; op.funcSolid(dest, l, data->solid.color, spans->coverage); if (op.dest_store) op.dest_store(data->rasterBuffer, x, spans->y, dest, l); length -= l; x += l; } ++spans; } } #if defined (Q_WS_QWS) && !defined(QT_NO_RASTERCALLBACKS) static void blend_color_generic_callback(int count, const QSpan *spans, void *userData) { // ### Falcon Q_UNUSED(count); Q_UNUSED(spans); Q_UNUSED(userData); // QSpanData *data = reinterpret_cast(userData); // data->rasterEngine->drawColorSpans(spans, count, data->solid.color); } #endif // QT_NO_RASTERCALLBACKS static void blend_color_argb(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); Operator op = getOperator(data, spans, count); if (op.mode == QPainter::CompositionMode_Source) { // inline for performance while (count--) { uint *target = ((uint *)data->rasterBuffer->scanLine(spans->y)) + spans->x; if (spans->coverage == 255) { QT_MEMFILL_UINT(target, spans->len, data->solid.color); } else { uint c = BYTE_MUL(data->solid.color, spans->coverage); int ialpha = 255 - spans->coverage; for (int i = 0; i < spans->len; ++i) target[i] = c + BYTE_MUL(target[i], ialpha); } ++spans; } return; } while (count--) { uint *target = ((uint *)data->rasterBuffer->scanLine(spans->y)) + spans->x; op.funcSolid(target, spans->len, data->solid.color, spans->coverage); ++spans; } } template Q_STATIC_TEMPLATE_FUNCTION void blendColor(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); Operator op = getOperator(data, spans, count); if (op.mode == QPainter::CompositionMode_Source) { const T c = qt_colorConvert(quint32p::fromRawData(data->solid.color), 0); while (count--) { T *target = ((T*)data->rasterBuffer->scanLine(spans->y)) + spans->x; if (spans->coverage == 255) { qt_memfill(target, c, spans->len); } else { const quint8 alpha = T::alpha(spans->coverage); const T color = c.byte_mul(alpha); const int ialpha = T::ialpha(spans->coverage); const T *end = target + spans->len; while (target < end) { *target = color + target->byte_mul(ialpha); ++target; } } ++spans; } return; } if (op.mode == QPainter::CompositionMode_SourceOver) { while (count--) { const quint32 color = BYTE_MUL(data->solid.color, spans->coverage); const T c = qt_colorConvert(quint32p::fromRawData(color), 0); const quint8 ialpha = T::alpha(qAlpha(~color)); T *target = ((T*)data->rasterBuffer->scanLine(spans->y)) + spans->x; const T *end = target + spans->len; while (target != end) { *target = c + target->byte_mul(ialpha); ++target; } ++spans; } return; } blend_color_generic(count, spans, userData); } #define SPANFUNC_POINTER_BLENDCOLOR(DST) blendColor static void blend_color_rgb16(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); /* We duplicate a little logic from getOperator() and calculate the composition mode directly. This allows blend_color_rgb16 to be used from qt_gradient_quint16 with minimal overhead. */ QPainter::CompositionMode mode = data->rasterBuffer->compositionMode; if (mode == QPainter::CompositionMode_SourceOver && qAlpha(data->solid.color) == 255) mode = QPainter::CompositionMode_Source; if (mode == QPainter::CompositionMode_Source) { // inline for performance ushort c = qConvertRgb32To16(data->solid.color); while (count--) { ushort *target = ((ushort *)data->rasterBuffer->scanLine(spans->y)) + spans->x; if (spans->coverage == 255) { QT_MEMFILL_USHORT(target, spans->len, c); } else { ushort color = BYTE_MUL_RGB16(c, spans->coverage); int ialpha = 255 - spans->coverage; const ushort *end = target + spans->len; while (target < end) { *target = color + BYTE_MUL_RGB16(*target, ialpha); ++target; } } ++spans; } return; } if (mode == QPainter::CompositionMode_SourceOver) { while (count--) { uint color = BYTE_MUL(data->solid.color, spans->coverage); int ialpha = qAlpha(~color); ushort c = qConvertRgb32To16(color); ushort *target = ((ushort *)data->rasterBuffer->scanLine(spans->y)) + spans->x; int len = spans->len; bool pre = (((quintptr)target) & 0x3) != 0; bool post = false; if (pre) { // skip to word boundary *target = c + BYTE_MUL_RGB16(*target, ialpha); ++target; --len; } if (len & 0x1) { post = true; --len; } uint *target32 = (uint*)target; uint c32 = c | (c<<16); len >>= 1; uint salpha = (ialpha+1) >> 3; // calculate here rather than in loop while (len--) { // blend full words *target32 = c32 + BYTE_MUL_RGB16_32(*target32, salpha); ++target32; target += 2; } if (post) { // one last pixel beyond a full word *target = c + BYTE_MUL_RGB16(*target, ialpha); } ++spans; } return; } blend_color_generic(count, spans, userData); } template void handleSpans(int count, const QSpan *spans, const QSpanData *data, T &handler) { uint const_alpha = 256; if (data->type == QSpanData::Texture) const_alpha = data->texture.const_alpha; int coverage = 0; while (count) { int x = spans->x; const int y = spans->y; int right = x + spans->len; // compute length of adjacent spans for (int i = 1; i < count && spans[i].y == y && spans[i].x == right; ++i) right += spans[i].len; int length = right - x; while (length) { int l = qMin(buffer_size, length); length -= l; int process_length = l; int process_x = x; const uint *src = handler.fetch(process_x, y, process_length); int offset = 0; while (l > 0) { if (x == spans->x) // new span? coverage = (spans->coverage * const_alpha) >> 8; int right = spans->x + spans->len; int len = qMin(l, right - x); handler.process(x, y, len, coverage, src, offset); l -= len; x += len; offset += len; if (x == right) { // done with current span? ++spans; --count; } } handler.store(process_x, y, process_length); } } } struct QBlendBase { QBlendBase(QSpanData *d, Operator o) : data(d) , op(o) , dest(0) { } QSpanData *data; Operator op; uint *dest; uint buffer[buffer_size]; uint src_buffer[buffer_size]; }; template class BlendSrcGeneric : public QBlendBase { public: BlendSrcGeneric(QSpanData *d, Operator o) : QBlendBase(d, o) { } const uint *fetch(int x, int y, int len) { if (spanMethod == RegularSpans) dest = op.dest_fetch ? op.dest_fetch(buffer, data->rasterBuffer, x, y, len) : buffer; return op.src_fetch(src_buffer, &op, data, y, x, len); } void process(int x, int y, int len, int coverage, const uint *src, int offset) { if (spanMethod == RegularSpans) op.func(dest + offset, src + offset, len, coverage); else drawBufferSpan(data, src + offset, len, x, y, len, coverage); } void store(int x, int y, int len) { if (spanMethod == RegularSpans && op.dest_store) { op.dest_store(data->rasterBuffer, x, y, dest, len); } } }; template Q_STATIC_TEMPLATE_FUNCTION void blend_src_generic(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); BlendSrcGeneric blend(data, getOperator(data, spans, count)); handleSpans(count, spans, data, blend); } template Q_STATIC_TEMPLATE_FUNCTION void blend_untransformed_generic(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); uint buffer[buffer_size]; uint src_buffer[buffer_size]; Operator op = getOperator(data, spans, count); const int image_width = data->texture.width; const int image_height = data->texture.height; int xoff = -qRound(-data->dx); int yoff = -qRound(-data->dy); while (count--) { int x = spans->x; int length = spans->len; int sx = xoff + x; int sy = yoff + spans->y; if (sy >= 0 && sy < image_height && sx < image_width) { if (sx < 0) { x -= sx; length += sx; sx = 0; } if (sx + length > image_width) length = image_width - sx; if (length > 0) { const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; while (length) { int l = qMin(buffer_size, length); const uint *src = op.src_fetch(src_buffer, &op, data, sy, sx, l); if (spanMethod == RegularSpans) { uint *dest = op.dest_fetch ? op.dest_fetch(buffer, data->rasterBuffer, x, spans->y, l) : buffer; op.func(dest, src, l, coverage); if (op.dest_store) op.dest_store(data->rasterBuffer, x, spans->y, dest, l); } else { drawBufferSpan(data, src, l, x, spans->y, l, coverage); } x += l; sx += l; length -= l; } } } ++spans; } } template Q_STATIC_TEMPLATE_FUNCTION void blend_untransformed_argb(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); if (data->texture.format != QImage::Format_ARGB32_Premultiplied && data->texture.format != QImage::Format_RGB32) { blend_untransformed_generic(count, spans, userData); return; } Operator op = getOperator(data, spans, count); const int image_width = data->texture.width; const int image_height = data->texture.height; int xoff = -qRound(-data->dx); int yoff = -qRound(-data->dy); while (count--) { int x = spans->x; int length = spans->len; int sx = xoff + x; int sy = yoff + spans->y; if (sy >= 0 && sy < image_height && sx < image_width) { if (sx < 0) { x -= sx; length += sx; sx = 0; } if (sx + length > image_width) length = image_width - sx; if (length > 0) { const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; const uint *src = (uint *)data->texture.scanLine(sy) + sx; if (spanMethod == RegularSpans) { uint *dest = ((uint *)data->rasterBuffer->scanLine(spans->y)) + x; op.func(dest, src, length, coverage); } else { drawBufferSpan(data, src, length, x, spans->y, length, coverage); } } } ++spans; } } static inline quint16 interpolate_pixel_rgb16_255(quint16 x, quint8 a, quint16 y, quint8 b) { quint16 t = ((((x & 0x07e0) * a) + ((y & 0x07e0) * b)) >> 5) & 0x07e0; t |= ((((x & 0xf81f) * a) + ((y & 0xf81f) * b)) >> 5) & 0xf81f; return t; } static inline quint32 interpolate_pixel_rgb16x2_255(quint32 x, quint8 a, quint32 y, quint8 b) { uint t; t = ((((x & 0xf81f07e0) >> 5) * a) + (((y & 0xf81f07e0) >> 5) * b)) & 0xf81f07e0; t |= ((((x & 0x07e0f81f) * a) + ((y & 0x07e0f81f) * b)) >> 5) & 0x07e0f81f; return t; } static inline void blend_sourceOver_rgb16_rgb16(quint16 *dest, const quint16 *src, int length, const quint8 alpha, const quint8 ialpha) { const int dstAlign = ((quintptr)dest) & 0x3; if (dstAlign) { *dest = interpolate_pixel_rgb16_255(*src, alpha, *dest, ialpha); ++dest; ++src; --length; } const int srcAlign = ((quintptr)src) & 0x3; int length32 = length >> 1; if (length32 && srcAlign == 0) { while (length32--) { const quint32 *src32 = reinterpret_cast(src); quint32 *dest32 = reinterpret_cast(dest); *dest32 = interpolate_pixel_rgb16x2_255(*src32, alpha, *dest32, ialpha); dest += 2; src += 2; } length &= 0x1; } while (length--) { *dest = interpolate_pixel_rgb16_255(*src, alpha, *dest, ialpha); ++dest; ++src; } } template Q_STATIC_TEMPLATE_SPECIALIZATION inline void madd_2(DST *dest, const quint16 alpha, const SRC *src) { Q_ASSERT((quintptr(dest) & 0x3) == 0); Q_ASSERT((quintptr(src) & 0x3) == 0); dest[0] = dest[0].byte_mul(alpha >> 8) + DST(src[0]); dest[1] = dest[1].byte_mul(alpha & 0xff) + DST(src[1]); } template Q_STATIC_TEMPLATE_SPECIALIZATION inline void madd_4(DST *dest, const quint32 alpha, const SRC *src) { Q_ASSERT((quintptr(dest) & 0x3) == 0); Q_ASSERT((quintptr(src) & 0x3) == 0); dest[0] = dest[0].byte_mul(alpha >> 24) + DST(src[0]); dest[1] = dest[1].byte_mul((alpha >> 16) & 0xff) + DST(src[1]); dest[2] = dest[2].byte_mul((alpha >> 8) & 0xff) + DST(src[2]); dest[3] = dest[3].byte_mul(alpha & 0xff) + DST(src[3]); } #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline void madd_4(qargb8565 *dest, const quint32 a, const qargb8565 *src) { Q_ASSERT((quintptr(dest) & 0x3) == 0); Q_ASSERT((quintptr(src) & 0x3) == 0); const quint32 *src32 = reinterpret_cast(src); quint32 *dest32 = reinterpret_cast(dest); quint32 x, y, t; quint8 a8; { x = dest32[0]; y = src32[0]; a8 = a >> 24; // a0,g0 t = ((((x & 0x0007e0ff) * a8) >> 5) & 0x0007e0ff) + (y & 0x0007c0f8); // r0,b0 t |= ((((x & 0x00f81f00) * a8) >> 5) & 0x00f81f00) + (y & 0x00f81f00); a8 = (a >> 16) & 0xff; // a1 t |= ((((x & 0xff000000) >> 5) * a8) & 0xff000000) + (y & 0xf8000000); dest32[0] = t; } { x = dest32[1]; y = src32[1]; // r1,b1 t = ((((x & 0x0000f81f) * a8) >> 5) & 0x0000f81f) + (y & 0x0000f81f); // g1 t |= ((((x & 0x000007e0) * a8) >> 5) & 0x000007e0) + (y & 0x000007c0); a8 = (a >> 8) & 0xff; // a2 t |= ((((x & 0x00ff0000) * a8) >> 5) & 0x00ff0000) + (y & 0x00f80000); { // rgb2 quint16 x16 = (x >> 24) | ((dest32[2] & 0x000000ff) << 8); quint16 y16 = (y >> 24) | ((src32[2] & 0x000000ff) << 8); quint16 t16; t16 = ((((x16 & 0xf81f) * a8) >> 5) & 0xf81f) + (y16 & 0xf81f); t16 |= ((((x16 & 0x07e0) * a8) >> 5) & 0x07e0) + (y16 & 0x07c0); // rg2 t |= ((t16 & 0x00ff) << 24); dest32[1] = t; x = dest32[2]; y = src32[2]; // gb2 t = (t16 >> 8); } } { a8 = a & 0xff; // g3,a3 t |= ((((x & 0x07e0ff00) * a8) >> 5) & 0x07e0ff00) + (y & 0x07c0f800); // r3,b3 t |= ((((x & 0xf81f0000) >> 5) * a8) & 0xf81f0000)+ (y & 0xf81f0000); dest32[2] = t; } } #endif #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline void madd_4(qargb8555 *dest, const quint32 a, const qargb8555 *src) { Q_ASSERT((quintptr(dest) & 0x3) == 0); Q_ASSERT((quintptr(src) & 0x3) == 0); const quint32 *src32 = reinterpret_cast(src); quint32 *dest32 = reinterpret_cast(dest); quint32 x, y, t; quint8 a8; { x = dest32[0]; y = src32[0]; a8 = a >> 24; // a0,g0 t = ((((x & 0x0003e0ff) * a8) >> 5) & 0x0003e0ff) + (y & 0x0003e0f8); // r0,b0 t |= ((((x & 0x007c1f00) * a8) >> 5) & 0x007c1f00) + (y & 0x007c1f00); a8 = (a >> 16) & 0xff; // a1 t |= ((((x & 0xff000000) >> 5) * a8) & 0xff000000) + (y & 0xf8000000); dest32[0] = t; } { x = dest32[1]; y = src32[1]; // r1,b1 t = ((((x & 0x00007c1f) * a8) >> 5) & 0x00007c1f) + (y & 0x00007c1f); // g1 t |= ((((x & 0x000003e0) * a8) >> 5) & 0x000003e0) + (y & 0x000003e0); a8 = (a >> 8) & 0xff; // a2 t |= ((((x & 0x00ff0000) * a8) >> 5) & 0x00ff0000) + (y & 0x00f80000); { // rgb2 quint16 x16 = (x >> 24) | ((dest32[2] & 0x000000ff) << 8); quint16 y16 = (y >> 24) | ((src32[2] & 0x000000ff) << 8); quint16 t16; t16 = ((((x16 & 0x7c1f) * a8) >> 5) & 0x7c1f) + (y16 & 0x7c1f); t16 |= ((((x16 & 0x03e0) * a8) >> 5) & 0x03e0) + (y16 & 0x03e0); // rg2 t |= ((t16 & 0x00ff) << 24); dest32[1] = t; x = dest32[2]; y = src32[2]; // gb2 t = (t16 >> 8); } } { a8 = a & 0xff; // g3,a3 t |= ((((x & 0x03e0ff00) * a8) >> 5) & 0x03e0ff00) + (y & 0x03e0f800); // r3,b3 t |= ((((x & 0x7c1f0000) >> 5) * a8) & 0x7c1f0000)+ (y & 0x7c1f0000); dest32[2] = t; } } #endif template Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 alpha_2(const T *src) { Q_ASSERT((quintptr(src) & 0x3) == 0); if (T::hasAlpha()) return (src[0].alpha() << 8) | src[1].alpha(); else return 0xffff; } template Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 alpha_4(const T *src) { Q_ASSERT((quintptr(src) & 0x3) == 0); if (T::hasAlpha()) { return (src[0].alpha() << 24) | (src[1].alpha() << 16) | (src[2].alpha() << 8) | src[3].alpha(); } else { return 0xffffffff; } } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 alpha_4(const qargb8565 *src) { const quint8 *src8 = reinterpret_cast(src); return src8[0] << 24 | src8[3] << 16 | src8[6] << 8 | src8[9]; } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 alpha_4(const qargb6666 *src) { const quint8 *src8 = reinterpret_cast(src); return ((src8[2] & 0xfc) | (src8[2] >> 6)) << 24 | ((src8[5] & 0xfc) | (src8[5] >> 6)) << 16 | ((src8[8] & 0xfc) | (src8[8] >> 6)) << 8 | ((src8[11] & 0xfc) | (src8[11] >> 6)); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 alpha_4(const qargb8555 *src) { Q_ASSERT((long(src) & 0x3) == 0); const quint8 *src8 = reinterpret_cast(src); return src8[0] << 24 | src8[3] << 16 | src8[6] << 8 | src8[9]; } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 alpha_2(const qargb4444 *src) { const quint32 *src32 = reinterpret_cast(src); const quint32 t = (*src32 & 0xf000f000) | ((*src32 & 0xf000f000) >> 4); return (t >> 24) | (t & 0xff00); } template Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 eff_alpha_2(quint16 alpha, const T*) { return (T::alpha((alpha >> 8) & 0xff) << 8) | T::alpha(alpha & 0xff); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 eff_alpha_2(quint16 a, const qrgb565*) { return ((((a & 0xff00) + 0x0100) >> 3) & 0xff00) | ((((a & 0x00ff) + 0x0001) >> 3) & 0x00ff); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 eff_alpha_2(quint16 a, const qrgb444*) { return (((a & 0x00ff) + 0x0001) >> 4) | ((((a & 0xff00) + 0x0100) >> 4) & 0xff00); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 eff_alpha_2(quint16 a, const qargb4444*) { return (((a & 0x00ff) + 0x0001) >> 4) | ((((a & 0xff00) + 0x0100) >> 4) & 0xff00); } template Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 eff_ialpha_2(quint16 alpha, const T*) { return (T::ialpha((alpha >> 8) & 0xff) << 8) | T::ialpha(alpha & 0xff); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 eff_ialpha_2(quint16 a, const qrgb565 *dummy) { return 0x2020 - eff_alpha_2(a, dummy); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 eff_ialpha_2(quint16 a, const qargb4444 *dummy) { return 0x1010 - eff_alpha_2(a, dummy); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint16 eff_ialpha_2(quint16 a, const qrgb444 *dummy) { return 0x1010 - eff_alpha_2(a, dummy); } template Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_alpha_4(quint32 alpha, const T*) { return (T::alpha(alpha >> 24) << 24) | (T::alpha((alpha >> 16) & 0xff) << 16) | (T::alpha((alpha >> 8) & 0xff) << 8) | T::alpha(alpha & 0xff); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_alpha_4(quint32 a, const qrgb888*) { return a; } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_alpha_4(quint32 a, const qargb8565*) { return ((((a & 0xff00ff00) + 0x01000100) >> 3) & 0xff00ff00) | ((((a & 0x00ff00ff) + 0x00010001) >> 3) & 0x00ff00ff); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_alpha_4(quint32 a, const qargb6666*) { return ((((a & 0xff00ff00) >> 2) + 0x00400040) & 0xff00ff00) | ((((a & 0x00ff00ff) + 0x00010001) >> 2) & 0x00ff00ff); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_alpha_4(quint32 a, const qrgb666*) { return ((((a & 0xff00ff00) >> 2) + 0x00400040) & 0xff00ff00) | ((((a & 0x00ff00ff) + 0x00010001) >> 2) & 0x00ff00ff); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_alpha_4(quint32 a, const qargb8555*) { return ((((a & 0xff00ff00) + 0x01000100) >> 3) & 0xff00ff00) | ((((a & 0x00ff00ff) + 0x00010001) >> 3) & 0x00ff00ff); } template Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_ialpha_4(quint32 alpha, const T*) { return (T::ialpha(alpha >> 24) << 24) | (T::ialpha((alpha >> 16) & 0xff) << 16) | (T::ialpha((alpha >> 8) & 0xff) << 8) | T::ialpha(alpha & 0xff); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_ialpha_4(quint32 a, const qrgb888*) { return ~a; } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_ialpha_4(quint32 a, const qargb8565 *dummy) { return 0x20202020 - eff_alpha_4(a, dummy); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_ialpha_4(quint32 a, const qargb6666 *dummy) { return 0x40404040 - eff_alpha_4(a, dummy); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_ialpha_4(quint32 a, const qrgb666 *dummy) { return 0x40404040 - eff_alpha_4(a, dummy); } template <> Q_STATIC_TEMPLATE_SPECIALIZATION inline quint32 eff_ialpha_4(quint32 a, const qargb8555 *dummy) { return 0x20202020 - eff_alpha_4(a, dummy); } template inline void interpolate_pixel_unaligned_2(DST *dest, const SRC *src, quint16 alpha) { const quint16 a = eff_alpha_2(alpha, dest); const quint16 ia = eff_ialpha_2(alpha, dest); dest[0] = DST(src[0]).byte_mul(a >> 8) + dest[0].byte_mul(ia >> 8); dest[1] = DST(src[1]).byte_mul(a & 0xff) + dest[1].byte_mul(ia & 0xff); } template inline void interpolate_pixel_2(DST *dest, const SRC *src, quint16 alpha) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint16 a = eff_alpha_2(alpha, dest); const quint16 ia = eff_ialpha_2(alpha, dest); dest[0] = DST(src[0]).byte_mul(a >> 8) + dest[0].byte_mul(ia >> 8); dest[1] = DST(src[1]).byte_mul(a & 0xff) + dest[1].byte_mul(ia & 0xff); } template inline void interpolate_pixel(DST &dest, quint8 a, const SRC &src, quint8 b) { if (SRC::hasAlpha() && !DST::hasAlpha()) interpolate_pixel(dest, a, DST(src), b); else dest = dest.byte_mul(a) + DST(src).byte_mul(b); } template <> inline void interpolate_pixel(qargb8565 &dest, quint8 a, const qargb8565 &src, quint8 b) { quint8 *d = reinterpret_cast(&dest); const quint8 *s = reinterpret_cast(&src); d[0] = (d[0] * a + s[0] * b) >> 5; const quint16 x = (d[2] << 8) | d[1]; const quint16 y = (s[2] << 8) | s[1]; quint16 t = (((x & 0x07e0) * a + (y & 0x07e0) * b) >> 5) & 0x07e0; t |= (((x & 0xf81f) * a + (y & 0xf81f) * b) >> 5) & 0xf81f; d[1] = t & 0xff; d[2] = t >> 8; } template <> inline void interpolate_pixel(qrgb565 &dest, quint8 a, const qrgb565 &src, quint8 b) { const quint16 x = dest.rawValue(); const quint16 y = src.rawValue(); quint16 t = (((x & 0x07e0) * a + (y & 0x07e0) * b) >> 5) & 0x07e0; t |= (((x & 0xf81f) * a + (y & 0xf81f) * b) >> 5) & 0xf81f; dest = t; } template <> inline void interpolate_pixel(qrgb555 &dest, quint8 a, const qrgb555 &src, quint8 b) { const quint16 x = dest.rawValue(); const quint16 y = src.rawValue(); quint16 t = (((x & 0x03e0) * a + (y & 0x03e0) * b) >> 5) & 0x03e0; t |= ((((x & 0x7c1f) * a) + ((y & 0x7c1f) * b)) >> 5) & 0x7c1f; dest = t; } template <> inline void interpolate_pixel(qrgb444 &dest, quint8 a, const qrgb444 &src, quint8 b) { const quint16 x = dest.rawValue(); const quint16 y = src.rawValue(); quint16 t = ((x & 0x00f0) * a + (y & 0x00f0) * b) & 0x0f00; t |= ((x & 0x0f0f) * a + (y & 0x0f0f) * b) & 0xf0f0; quint16 *d = reinterpret_cast(&dest); *d = (t >> 4); } template inline void interpolate_pixel_2(DST *dest, quint8 a, const SRC *src, quint8 b) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); Q_ASSERT(!SRC::hasAlpha()); dest[0] = dest[0].byte_mul(a) + DST(src[0]).byte_mul(b); dest[1] = dest[1].byte_mul(a) + DST(src[1]).byte_mul(b); } template <> inline void interpolate_pixel_2(qrgb565 *dest, quint8 a, const qrgb565 *src, quint8 b) { quint32 *x = reinterpret_cast(dest); const quint32 *y = reinterpret_cast(src); quint32 t = (((*x & 0xf81f07e0) >> 5) * a + ((*y & 0xf81f07e0) >> 5) * b) & 0xf81f07e0; t |= (((*x & 0x07e0f81f) * a + (*y & 0x07e0f81f) * b) >> 5) & 0x07e0f81f; *x = t; } template <> inline void interpolate_pixel_2(qrgb555 *dest, quint8 a, const qrgb555 *src, quint8 b) { quint32 *x = reinterpret_cast(dest); const quint32 *y = reinterpret_cast(src); quint32 t = (((*x & 0x7c1f03e0) >> 5) * a + ((*y & 0x7c1f03e0) >> 5) * b) & 0x7c1f03e0; t |= (((*x & 0x03e07c1f) * a + (*y & 0x03e07c1f) * b) >> 5) & 0x03e07c1f; *x = t; } template <> inline void interpolate_pixel_2(qrgb444 *dest, quint8 a, const qrgb444 *src, quint8 b) { quint32 *x = reinterpret_cast(dest); const quint32 *y = reinterpret_cast(src); quint32 t = ((*x & 0x0f0f0f0f) * a + (*y & 0x0f0f0f0f) * b) & 0xf0f0f0f0; t |= ((*x & 0x00f000f0) * a + (*y & 0x00f000f0) * b) & 0x0f000f00; *x = t >> 4; } template inline void interpolate_pixel_4(DST *dest, const SRC *src, quint32 alpha) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint32 a = eff_alpha_4(alpha, dest); const quint32 ia = eff_ialpha_4(alpha, dest); dest[0] = DST(src[0]).byte_mul(a >> 24) + dest[0].byte_mul(ia >> 24); dest[1] = DST(src[1]).byte_mul((a >> 16) & 0xff) + dest[1].byte_mul((ia >> 16) & 0xff); dest[2] = DST(src[2]).byte_mul((a >> 8) & 0xff) + dest[2].byte_mul((ia >> 8) & 0xff); dest[3] = DST(src[3]).byte_mul(a & 0xff) + dest[3].byte_mul(ia & 0xff); } #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN template <> inline void interpolate_pixel_4(qargb8565 *dest, const qargb8565 *src, quint32 alpha) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint32 a = eff_alpha_4(alpha, dest); const quint32 ia = eff_ialpha_4(alpha, dest); const quint32 *src32 = reinterpret_cast(src); quint32 *dest32 = reinterpret_cast(dest); quint32 x, y, t; quint8 a8, ia8; { x = src32[0]; y = dest32[0]; a8 = a >> 24; ia8 = ia >> 24; // a0,g0 t = (((x & 0x0007e0ff) * a8 + (y & 0x0007e0ff) * ia8) >> 5) & 0x0007e0ff; // r0,b0 t |= (((x & 0x00f81f00) * a8 + (y & 0x00f81f00) * ia8) >> 5) & 0x00f81f00; a8 = (a >> 16) & 0xff; ia8 = (ia >> 16) & 0xff; // a1 t |= (((x & 0xff000000) >> 5) * a8 + ((y & 0xff000000) >> 5) * ia8) & 0xff000000; dest32[0] = t; } { x = src32[1]; y = dest32[1]; // r1,b1 t = (((x & 0x0000f81f) * a8 + (y & 0x0000f81f) * ia8) >> 5) & 0x0000f81f; // g1 t |= (((x & 0x000007e0) * a8 + (y & 0x000007e0) * ia8) >> 5) & 0x000007e0; a8 = (a >> 8) & 0xff; ia8 = (ia >> 8) & 0xff; // a2 t |= (((x & 0x00ff0000) * a8 + (y & 0x00ff0000) * ia8) >> 5) & 0x00ff0000; { // rgb2 quint16 x16 = (x >> 24) | ((src32[2] & 0x000000ff) << 8); quint16 y16 = (y >> 24) | ((dest32[2] & 0x000000ff) << 8); quint16 t16; t16 = (((x16 & 0xf81f) * a8 + (y16 & 0xf81f) * ia8) >> 5) & 0xf81f; t16 |= (((x16 & 0x07e0) * a8 + (y16 & 0x07e0) * ia8) >> 5) & 0x07e0; // rg2 t |= ((t16 & 0x00ff) << 24); dest32[1] = t; x = src32[2]; y = dest32[2]; // gb2 t = (t16 >> 8); } } { a8 = a & 0xff; ia8 = ia & 0xff; // g3,a3 t |= (((x & 0x07e0ff00) * a8 + (y & 0x07e0ff00) * ia8) >> 5) & 0x07e0ff00; // r3,b3 t |= (((x & 0xf81f0000) >> 5) * a8 + ((y & 0xf81f0000) >> 5) * ia8) & 0xf81f0000; dest32[2] = t; } } #endif #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN template <> inline void interpolate_pixel_4(qargb8555 *dest, const qargb8555 *src, quint32 alpha) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint32 a = eff_alpha_4(alpha, dest); const quint32 ia = eff_ialpha_4(alpha, dest); const quint32 *src32 = reinterpret_cast(src); quint32 *dest32 = reinterpret_cast(dest); quint32 x, y, t; quint8 a8, ia8; { x = src32[0]; y = dest32[0]; a8 = a >> 24; ia8 = ia >> 24; // a0,g0 t = (((x & 0x0003e0ff) * a8 + (y & 0x0003e0ff) * ia8) >> 5) & 0x0003e0ff; // r0,b0 t |= (((x & 0x007c1f00) * a8 + (y & 0x007c1f00) * ia8) >> 5) & 0x007c1f00; a8 = (a >> 16) & 0xff; ia8 = (ia >> 16) & 0xff; // a1 t |= (((x & 0xff000000) >> 5) * a8 + ((y & 0xff000000) >> 5) * ia8) & 0xff000000; dest32[0] = t; } { x = src32[1]; y = dest32[1]; // r1,b1 t = (((x & 0x00007c1f) * a8 + (y & 0x00007c1f) * ia8) >> 5) & 0x00007c1f; // g1 t |= (((x & 0x000003e0) * a8 + (y & 0x000003e0) * ia8) >> 5) & 0x000003e0; a8 = (a >> 8) & 0xff; ia8 = (ia >> 8) & 0xff; // a2 t |= (((x & 0x00ff0000) * a8 + (y & 0x00ff0000) * ia8) >> 5) & 0x00ff0000; { // rgb2 quint16 x16 = (x >> 24) | ((src32[2] & 0x000000ff) << 8); quint16 y16 = (y >> 24) | ((dest32[2] & 0x000000ff) << 8); quint16 t16; t16 = (((x16 & 0x7c1f) * a8 + (y16 & 0x7c1f) * ia8) >> 5) & 0x7c1f; t16 |= (((x16 & 0x03e0) * a8 + (y16 & 0x03e0) * ia8) >> 5) & 0x03e0; // rg2 t |= ((t16 & 0x00ff) << 24); dest32[1] = t; x = src32[2]; y = dest32[2]; // gb2 t = (t16 >> 8); } } { a8 = a & 0xff; ia8 = ia & 0xff; // g3,a3 t |= (((x & 0x03e0ff00) * a8 + (y & 0x03e0ff00) * ia8) >> 5) & 0x03e0ff00; // r3,b3 t |= (((x & 0x7c1f0000) >> 5) * a8 + ((y & 0x7c1f0000) >> 5) * ia8) & 0x7c1f0000; dest32[2] = t; } } #endif template <> inline void interpolate_pixel_4(qrgb888 *dest, const qrgb888 *src, quint32 alpha) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint32 a = eff_alpha_4(alpha, dest); const quint32 ia = eff_ialpha_4(alpha, dest); const quint32 *src32 = reinterpret_cast(src); quint32 *dest32 = reinterpret_cast(dest); { quint32 x = src32[0]; quint32 y = dest32[0]; quint32 t; t = ((x >> 8) & 0xff00ff) * (a >> 24) + ((y >> 8) & 0xff00ff) * (ia >> 24); t = (t + ((t >> 8) & 0xff00ff) + 0x800080); t &= 0xff00ff00; x = (x & 0xff0000) * (a >> 24) + (x & 0x0000ff) * ((a >> 16) & 0xff) + (y & 0xff0000) * (ia >> 24) + (y & 0x0000ff) * ((ia >> 16) & 0xff); x = (x + ((x >> 8) & 0xff00ff) + 0x800080) >> 8; x &= 0x00ff00ff; dest32[0] = x | t; } { quint32 x = src32[1]; quint32 y = dest32[1]; quint32 t; t = ((x >> 8) & 0xff0000) * ((a >> 16) & 0xff) + ((x >> 8) & 0x0000ff) * ((a >> 8) & 0xff) + ((y >> 8) & 0xff0000) * ((ia >> 16) & 0xff) + ((y >> 8) & 0x0000ff) * ((ia >> 8) & 0xff); t = (t + ((t >> 8) & 0xff00ff) + 0x800080); t &= 0xff00ff00; x = (x & 0xff0000) * ((a >> 16) & 0xff) + (x & 0x0000ff) * ((a >> 8) & 0xff) + (y & 0xff0000) * ((ia >> 16) & 0xff) + (y & 0x0000ff) * ((ia >> 8) & 0xff); x = (x + ((x >> 8) & 0xff00ff) + 0x800080) >> 8; x &= 0x00ff00ff; dest32[1] = x | t; } { quint32 x = src32[2]; quint32 y = dest32[2]; quint32 t; t = ((x >> 8) & 0xff0000) * ((a >> 8) & 0xff) + ((x >> 8) & 0x0000ff) * (a & 0xff) + ((y >> 8) & 0xff0000) * ((ia >> 8) & 0xff) + ((y >> 8) & 0x0000ff) * (ia & 0xff); t = (t + ((t >> 8) & 0xff00ff) + 0x800080); t &= 0xff00ff00; x = (x & 0xff00ff) * (a & 0xff) + (y & 0xff00ff) * (ia & 0xff); x = (x + ((x >> 8) & 0xff00ff) + 0x800080) >> 8; x &= 0x00ff00ff; dest32[2] = x | t; } } template inline void interpolate_pixel_4(DST *dest, quint8 a, const SRC *src, quint8 b) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); dest[0] = dest[0].byte_mul(a) + DST(src[0]).byte_mul(b); dest[1] = dest[1].byte_mul(a) + DST(src[1]).byte_mul(b); dest[2] = dest[2].byte_mul(a) + DST(src[2]).byte_mul(b); dest[3] = dest[3].byte_mul(a) + DST(src[3]).byte_mul(b); } template inline void blend_sourceOver_4(DST *dest, const SRC *src) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint32 a = alpha_4(src); if (a == 0xffffffff) { qt_memconvert(dest, src, 4); } else if (a > 0) { quint32 buf[3]; // array of quint32 to get correct alignment qt_memconvert((DST*)(void*)buf, src, 4); madd_4(dest, eff_ialpha_4(a, dest), (DST*)(void*)buf); } } template <> inline void blend_sourceOver_4(qargb8565 *dest, const qargb8565 *src) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint32 a = alpha_4(src); if (a == 0xffffffff) { qt_memconvert(dest, src, 4); } else if (a > 0) { madd_4(dest, eff_ialpha_4(a, dest), src); } } template <> inline void blend_sourceOver_4(qargb8555 *dest, const qargb8555 *src) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint32 a = alpha_4(src); if (a == 0xffffffff) { qt_memconvert(dest, src, 4); } else if (a > 0) { madd_4(dest, eff_ialpha_4(a, dest), src); } } template <> inline void blend_sourceOver_4(qargb6666 *dest, const qargb6666 *src) { Q_ASSERT((long(dest) & 0x3) == 0); Q_ASSERT((long(src) & 0x3) == 0); const quint32 a = alpha_4(src); if (a == 0xffffffff) { qt_memconvert(dest, src, 4); } else if (a > 0) { madd_4(dest, eff_ialpha_4(a, dest), src); } } template void QT_FASTCALL blendUntransformed_unaligned(DST *dest, const SRC *src, quint8 coverage, int length) { Q_ASSERT(coverage > 0); if (coverage < 255) { if (SRC::hasAlpha()) { for (int i = 0; i < length; ++i) { if (src[i].alpha()) { const quint8 alpha = qt_div_255(int(src[i].alpha()) * int(coverage)); interpolate_pixel(dest[i], DST::ialpha(alpha), src[i], DST::alpha(alpha)); } } } else { const quint8 alpha = DST::alpha(coverage); const quint8 ialpha = DST::ialpha(coverage); if (alpha) { for (int i = 0; i < length; ++i) interpolate_pixel(dest[i], ialpha, src[i], alpha); } } return; } Q_ASSERT(coverage == 0xff); Q_ASSERT(SRC::hasAlpha()); if (SRC::hasAlpha()) { for (int i = 0; i < length; ++i) { const quint8 a = src->alpha(); if (a == 0xff) *dest = DST(*src); else if (a > 0) { if (DST::hasAlpha()) *dest = DST(*src).truncedAlpha() + dest->byte_mul(DST::ialpha(a)); else *dest = DST(SRC(*src).truncedAlpha()) + dest->byte_mul(DST::ialpha(a)); } ++src; ++dest; } } } template void QT_FASTCALL blendUntransformed_dest16(DST *dest, const SRC *src, quint8 coverage, int length) { Q_ASSERT(sizeof(DST) == 2); Q_ASSERT(sizeof(SRC) == 2); Q_ASSERT((long(dest) & 0x3) == (long(src) & 0x3)); Q_ASSERT(coverage > 0); const int align = quintptr(dest) & 0x3; if (coverage < 255) { // align if (align) { const quint8 alpha = SRC::hasAlpha() ? qt_div_255(int(src->alpha()) * int(coverage)) : coverage; if (alpha) { interpolate_pixel(*dest, DST::ialpha(alpha), *src, DST::alpha(alpha)); } ++dest; ++src; --length; } if (SRC::hasAlpha()) { while (length >= 2) { const quint16 alpha16 = BYTE_MUL(uint(alpha_2(src)), uint(coverage)); interpolate_pixel_2(dest, src, alpha16); length -= 2; src += 2; dest += 2; } } else { const quint8 alpha = DST::alpha(coverage); const quint8 ialpha = DST::ialpha(coverage); while (length >= 2) { interpolate_pixel_2(dest, ialpha, src, alpha); length -= 2; src += 2; dest += 2; } } // tail if (length) { const quint8 alpha = SRC::hasAlpha() ? qt_div_255(int(src->alpha()) * int(coverage)) : coverage; if (alpha) { interpolate_pixel(*dest, DST::ialpha(alpha), *src, DST::alpha(alpha)); } } return; } Q_ASSERT(SRC::hasAlpha()); if (SRC::hasAlpha()) { if (align) { const quint8 alpha = src->alpha(); if (alpha == 0xff) *dest = DST(*src); else if (alpha > 0) *dest = DST(*src).truncedAlpha() + dest->byte_mul(DST::ialpha(alpha)); ++dest; ++src; --length; } while (length >= 2) { Q_ASSERT((long(dest) & 3) == 0); Q_ASSERT((long(src) & 3) == 0); const quint16 a = alpha_2(src); if (a == 0xffff) { qt_memconvert(dest, src, 2); } else if (a > 0) { quint32 buf; if (sizeof(DST) == 2) qt_memconvert((DST*)(void*)&buf, src, 2); madd_2(dest, eff_ialpha_2(a, dest), (DST*)(void*)&buf); } length -= 2; src += 2; dest += 2; } if (length) { const quint8 alpha = src->alpha(); if (alpha == 0xff) *dest = DST(*src); else if (alpha > 0) *dest = DST(*src).truncedAlpha() + dest->byte_mul(DST::ialpha(alpha)); } } } template void QT_FASTCALL blendUntransformed_dest24(DST *dest, const SRC *src, quint8 coverage, int length) { Q_ASSERT((long(dest) & 0x3) == (long(src) & 0x3)); Q_ASSERT(sizeof(DST) == 3); Q_ASSERT(coverage > 0); const int align = quintptr(dest) & 0x3; if (coverage < 255) { // align for (int i = 0; i < align; ++i) { if (SRC::hasAlpha()) { const quint8 alpha = qt_div_255(int(src->alpha()) * int(coverage)); if (alpha) interpolate_pixel(*dest, DST::ialpha(alpha), *src, DST::alpha(alpha)); } else { interpolate_pixel(*dest, DST::ialpha(coverage), *src, DST::alpha(coverage)); } ++dest; ++src; --length; } if (SRC::hasAlpha()) { while (length >= 4) { const quint32 alpha = BYTE_MUL(uint(alpha_4(src)), uint(coverage)); if (alpha) interpolate_pixel_4(dest, src, alpha); length -= 4; src += 4; dest += 4; } } else { const quint8 alpha = DST::alpha(coverage); const quint8 ialpha = DST::ialpha(coverage); while (length >= 4) { interpolate_pixel_4(dest, ialpha, src, alpha); length -= 4; src += 4; dest += 4; } } // tail while (length--) { if (SRC::hasAlpha()) { const quint8 alpha = qt_div_255(int(src->alpha()) * int(coverage)); if (alpha) interpolate_pixel(*dest, DST::ialpha(alpha), *src, DST::alpha(alpha)); } else { interpolate_pixel(*dest, DST::ialpha(coverage), *src, DST::alpha(coverage)); } ++dest; ++src; } return; } Q_ASSERT(coverage == 255); Q_ASSERT(SRC::hasAlpha()); if (SRC::hasAlpha()) { // align for (int i = 0; i < align; ++i) { const quint8 a = src->alpha(); if (a == 0xff) { *dest = DST(*src); } else if (a > 0) { *dest = DST(*src).truncedAlpha() + dest->byte_mul(DST::ialpha(a)); } ++dest; ++src; --length; } while (length >= 4) { blend_sourceOver_4(dest, src); length -= 4; src += 4; dest += 4; } // tail while (length--) { const quint8 a = src->alpha(); if (a == 0xff) { *dest = DST(*src); } else if (a > 0) { *dest = DST(*src).truncedAlpha() + dest->byte_mul(DST::ialpha(a)); } ++dest; ++src; } } } template Q_STATIC_TEMPLATE_SPECIALIZATION void QT_FASTCALL blendUntransformed(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); QPainter::CompositionMode mode = data->rasterBuffer->compositionMode; if (mode != QPainter::CompositionMode_SourceOver && mode != QPainter::CompositionMode_Source) { blend_src_generic(count, spans, userData); return; } const bool modeSource = !SRC::hasAlpha() || mode == QPainter::CompositionMode_Source; const int image_width = data->texture.width; const int image_height = data->texture.height; int xoff = -qRound(-data->dx); int yoff = -qRound(-data->dy); while (count--) { const quint8 coverage = (data->texture.const_alpha * spans->coverage) >> 8; if (coverage == 0) { ++spans; continue; } int x = spans->x; int length = spans->len; int sx = xoff + x; int sy = yoff + spans->y; if (sy >= 0 && sy < image_height && sx < image_width) { if (sx < 0) { x -= sx; length += sx; sx = 0; } if (sx + length > image_width) length = image_width - sx; if (length > 0) { DST *dest = ((DST*)data->rasterBuffer->scanLine(spans->y)) + x; const SRC *src = (SRC*)data->texture.scanLine(sy) + sx; if (modeSource && coverage == 255) { qt_memconvert(dest, src, length); } else if (sizeof(DST) == 3 && sizeof(SRC) == 3 && length >= 3 && (quintptr(dest) & 3) == (quintptr(src) & 3)) { blendUntransformed_dest24(dest, src, coverage, length); } else if (sizeof(DST) == 2 && sizeof(SRC) == 2 && length >= 3 && (quintptr(dest) & 3) == (quintptr(src) & 3)) { blendUntransformed_dest16(dest, src, coverage, length); } else { blendUntransformed_unaligned(dest, src, coverage, length); } } } ++spans; } } static void blend_untransformed_rgb888(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_24) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_RGB888) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } static void blend_untransformed_argb6666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendUntransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } static void blend_untransformed_rgb666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendUntransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } static void blend_untransformed_argb8565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendUntransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } static void blend_untransformed_rgb565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendUntransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } static void blend_untransformed_argb8555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendUntransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } static void blend_untransformed_rgb555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendUntransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } static void blend_untransformed_argb4444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendUntransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } static void blend_untransformed_rgb444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendUntransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendUntransformed(count, spans, userData); else #endif blend_untransformed_generic(count, spans, userData); } template Q_STATIC_TEMPLATE_FUNCTION void blend_tiled_generic(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); uint buffer[buffer_size]; uint src_buffer[buffer_size]; Operator op = getOperator(data, spans, count); const int image_width = data->texture.width; const int image_height = data->texture.height; int xoff = -qRound(-data->dx) % image_width; int yoff = -qRound(-data->dy) % image_height; if (xoff < 0) xoff += image_width; if (yoff < 0) yoff += image_height; while (count--) { int x = spans->x; int length = spans->len; int sx = (xoff + spans->x) % image_width; int sy = (spans->y + yoff) % image_height; if (sx < 0) sx += image_width; if (sy < 0) sy += image_height; const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; while (length) { int l = qMin(image_width - sx, length); if (buffer_size < l) l = buffer_size; const uint *src = op.src_fetch(src_buffer, &op, data, sy, sx, l); if (spanMethod == RegularSpans) { uint *dest = op.dest_fetch ? op.dest_fetch(buffer, data->rasterBuffer, x, spans->y, l) : buffer; op.func(dest, src, l, coverage); if (op.dest_store) op.dest_store(data->rasterBuffer, x, spans->y, dest, l); } else { drawBufferSpan(data, src, l, x, spans->y, l, coverage); } x += l; sx += l; length -= l; if (sx >= image_width) sx = 0; } ++spans; } } template Q_STATIC_TEMPLATE_FUNCTION void blend_tiled_argb(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); if (data->texture.format != QImage::Format_ARGB32_Premultiplied && data->texture.format != QImage::Format_RGB32) { blend_tiled_generic(count, spans, userData); return; } Operator op = getOperator(data, spans, count); int image_width = data->texture.width; int image_height = data->texture.height; int xoff = -qRound(-data->dx) % image_width; int yoff = -qRound(-data->dy) % image_height; if (xoff < 0) xoff += image_width; if (yoff < 0) yoff += image_height; while (count--) { int x = spans->x; int length = spans->len; int sx = (xoff + spans->x) % image_width; int sy = (spans->y + yoff) % image_height; if (sx < 0) sx += image_width; if (sy < 0) sy += image_height; const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; while (length) { int l = qMin(image_width - sx, length); if (buffer_size < l) l = buffer_size; const uint *src = (uint *)data->texture.scanLine(sy) + sx; if (spanMethod == RegularSpans) { uint *dest = ((uint *)data->rasterBuffer->scanLine(spans->y)) + x; op.func(dest, src, l, coverage); } else { drawBufferSpan(data, src, buffer_size, x, spans->y, l, coverage); } x += l; length -= l; sx = 0; } ++spans; } } template Q_STATIC_TEMPLATE_FUNCTION void blendTiled(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); QPainter::CompositionMode mode = data->rasterBuffer->compositionMode; if (mode != QPainter::CompositionMode_SourceOver && mode != QPainter::CompositionMode_Source) { blend_src_generic(count, spans, userData); return; } const bool modeSource = !SRC::hasAlpha() || mode == QPainter::CompositionMode_Source; const int image_width = data->texture.width; const int image_height = data->texture.height; int xoff = -qRound(-data->dx) % image_width; int yoff = -qRound(-data->dy) % image_height; if (xoff < 0) xoff += image_width; if (yoff < 0) yoff += image_height; while (count--) { const quint8 coverage = (data->texture.const_alpha * spans->coverage) >> 8; if (coverage == 0) { ++spans; continue; } int x = spans->x; int length = spans->len; int sx = (xoff + spans->x) % image_width; int sy = (spans->y + yoff) % image_height; if (sx < 0) sx += image_width; if (sy < 0) sy += image_height; while (length) { int l = qMin(image_width - sx, length); if (buffer_size < l) l = buffer_size; DST *dest = ((DST*)data->rasterBuffer->scanLine(spans->y)) + x; const SRC *src = (SRC*)data->texture.scanLine(sy) + sx; if (modeSource && coverage == 255) { qt_memconvert(dest, src, l); } else if (sizeof(DST) == 3 && sizeof(SRC) == 3 && l >= 4 && (quintptr(dest) & 3) == (quintptr(src) & 3)) { blendUntransformed_dest24(dest, src, coverage, l); } else if (sizeof(DST) == 2 && sizeof(SRC) == 2 && l >= 2 && (quintptr(dest) & 3) == (quintptr(src) & 3)) { blendUntransformed_dest16(dest, src, coverage, l); } else { blendUntransformed_unaligned(dest, src, coverage, l); } x += l; length -= l; sx = 0; } ++spans; } } static void blend_tiled_rgb888(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_24) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_RGB888) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } static void blend_tiled_argb6666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } static void blend_tiled_rgb666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } static void blend_tiled_argb8565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } static void blend_tiled_rgb565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } static void blend_tiled_argb8555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } static void blend_tiled_rgb555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } static void blend_tiled_argb4444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } static void blend_tiled_rgb444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendTiled(count, spans, userData); else #endif blend_tiled_generic(count, spans, userData); } template Q_STATIC_TEMPLATE_FUNCTION void blend_transformed_bilinear_argb(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); if (data->texture.format != QImage::Format_ARGB32_Premultiplied && data->texture.format != QImage::Format_RGB32) { blend_src_generic(count, spans, userData); return; } CompositionFunction func = functionForMode[data->rasterBuffer->compositionMode]; uint buffer[buffer_size]; int image_x1 = data->texture.x1; int image_y1 = data->texture.y1; int image_x2 = data->texture.x2; int image_y2 = data->texture.y2; const int scanline_offset = data->texture.bytesPerLine / 4; if (data->fast_matrix) { // The increment pr x in the scanline int fdx = (int)(data->m11 * fixed_scale); int fdy = (int)(data->m12 * fixed_scale); while (count--) { void *t = data->rasterBuffer->scanLine(spans->y); uint *target = ((uint *)t) + spans->x; uint *image_bits = (uint *)data->texture.imageData; const qreal cx = spans->x + 0.5; const qreal cy = spans->y + 0.5; int x = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale) - half_point; int y = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale) - half_point; int length = spans->len; const int coverage = (data->texture.const_alpha * spans->coverage) >> 8; while (length) { int l = qMin(length, buffer_size); const uint *end = buffer + l; uint *b = buffer; while (b < end) { int x1 = (x >> 16); int x2 = x1 + 1; int y1 = (y >> 16); int y2 = y1 + 1; int distx = ((x - (x1 << 16)) >> 8); int disty = ((y - (y1 << 16)) >> 8); int idistx = 256 - distx; int idisty = 256 - disty; x1 = qBound(image_x1, x1, image_x2 - 1); x2 = qBound(image_x1, x2, image_x2 - 1); y1 = qBound(image_y1, y1, image_y2 - 1); y2 = qBound(image_y1, y2, image_y2 - 1); int y1_offset = y1 * scanline_offset; int y2_offset = y2 * scanline_offset; #if defined(Q_IRIX_GCC3_3_WORKAROUND) uint tl = gccBug(image_bits[y1_offset + x1]); uint tr = gccBug(image_bits[y1_offset + x2]); uint bl = gccBug(image_bits[y2_offset + x1]); uint br = gccBug(image_bits[y2_offset + x2]); #else uint tl = image_bits[y1_offset + x1]; uint tr = image_bits[y1_offset + x2]; uint bl = image_bits[y2_offset + x1]; uint br = image_bits[y2_offset + x2]; #endif uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx); uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx); *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty); ++b; x += fdx; y += fdy; } if (spanMethod == RegularSpans) func(target, buffer, l, coverage); else drawBufferSpan(data, buffer, buffer_size, spans->x + spans->len - length, spans->y, l, coverage); target += l; length -= l; } ++spans; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; while (count--) { void *t = data->rasterBuffer->scanLine(spans->y); uint *target = ((uint *)t) + spans->x; uint *image_bits = (uint *)data->texture.imageData; const qreal cx = spans->x + 0.5; const qreal cy = spans->y + 0.5; qreal x = data->m21 * cy + data->m11 * cx + data->dx; qreal y = data->m22 * cy + data->m12 * cx + data->dy; qreal w = data->m23 * cy + data->m13 * cx + data->m33; int length = spans->len; const int coverage = (data->texture.const_alpha * spans->coverage) >> 8; while (length) { int l = qMin(length, buffer_size); const uint *end = buffer + l; uint *b = buffer; while (b < end) { const qreal iw = w == 0 ? 1 : 1 / w; const qreal px = x * iw - 0.5; const qreal py = y * iw - 0.5; int x1 = int(px) - (px < 0); int x2 = x1 + 1; int y1 = int(py) - (py < 0); int y2 = y1 + 1; int distx = int((px - x1) * 256); int disty = int((py - y1) * 256); int idistx = 256 - distx; int idisty = 256 - disty; x1 = qBound(image_x1, x1, image_x2 - 1); x2 = qBound(image_x1, x2, image_x2 - 1); y1 = qBound(image_y1, y1, image_y2 - 1); y2 = qBound(image_y1, y2, image_y2 - 1); int y1_offset = y1 * scanline_offset; int y2_offset = y2 * scanline_offset; #if defined(Q_IRIX_GCC3_3_WORKAROUND) uint tl = gccBug(image_bits[y1_offset + x1]); uint tr = gccBug(image_bits[y1_offset + x2]); uint bl = gccBug(image_bits[y2_offset + x1]); uint br = gccBug(image_bits[y2_offset + x2]); #else uint tl = image_bits[y1_offset + x1]; uint tr = image_bits[y1_offset + x2]; uint bl = image_bits[y2_offset + x1]; uint br = image_bits[y2_offset + x2]; #endif uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx); uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx); *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty); ++b; x += fdx; y += fdy; w += fdw; } if (spanMethod == RegularSpans) func(target, buffer, l, coverage); else drawBufferSpan(data, buffer, buffer_size, spans->x + spans->len - length, spans->y, l, coverage); target += l; length -= l; } ++spans; } } } template Q_STATIC_TEMPLATE_FUNCTION void blendTransformedBilinear(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); QPainter::CompositionMode mode = data->rasterBuffer->compositionMode; if (mode != QPainter::CompositionMode_SourceOver) { blend_src_generic(count, spans, userData); return; } SRC buffer[buffer_size]; const int src_minx = data->texture.x1; const int src_miny = data->texture.y1; const int src_maxx = data->texture.x2 - 1; const int src_maxy = data->texture.y2 - 1; if (data->fast_matrix) { // The increment pr x in the scanline const int fdx = (int)(data->m11 * fixed_scale); const int fdy = (int)(data->m12 * fixed_scale); while (count--) { const quint8 coverage = (data->texture.const_alpha * spans->coverage) >> 8; if (coverage == 0) { ++spans; continue; } DST *dest = (DST*)data->rasterBuffer->scanLine(spans->y) + spans->x; const qreal cx = spans->x + qreal(0.5); const qreal cy = spans->y + qreal(0.5); int x = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale) - half_point; int y = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale) - half_point; int length = spans->len; while (length) { const int l = qMin(length, buffer_size); const SRC *end = buffer + l; SRC *b = buffer; while (b < end) { int x1 = (x >> 16); int x2 = x1 + 1; int y1 = (y >> 16); int y2 = y1 + 1; const int distx = ((x - (x1 << 16)) >> 8); const int disty = ((y - (y1 << 16)) >> 8); x1 = qBound(src_minx, x1, src_maxx); x2 = qBound(src_minx, x2, src_maxx); y1 = qBound(src_miny, y1, src_maxy); y2 = qBound(src_miny, y2, src_maxy); #if 0 if (x1 == x2) { if (y1 == y2) { *b = ((SRC*)data->texture.scanLine(y1))[x1]; } else { *b = ((SRC*)data->texture.scanLine(y1))[x1]; const SRC t = data->texture.scanLine(y2)[x1]; interpolate_pixel(*b, SRC::ialpha(disty), t, SRC::alpha(disty)); } } else if (y1 == y2) { *b = ((SRC*)data->texture.scanLine(y1))[x1]; const SRC t = ((SRC*)data->texture.scanLine(y1))[x2]; interpolate_pixel(*b, SRC::ialpha(distx), t, SRC::alpha(distx)); } else #endif { const SRC *src1 = (SRC*)data->texture.scanLine(y1); const SRC *src2 = (SRC*)data->texture.scanLine(y2); SRC tl = src1[x1]; const SRC tr = src1[x2]; SRC bl = src2[x1]; const SRC br = src2[x2]; const quint8 ax = SRC::alpha(distx); const quint8 iax = SRC::ialpha(distx); interpolate_pixel(tl, iax, tr, ax); interpolate_pixel(bl, iax, br, ax); interpolate_pixel(tl, SRC::ialpha(disty), bl, SRC::alpha(disty)); *b = tl; } ++b; x += fdx; y += fdy; } if (!SRC::hasAlpha() && coverage == 255) { qt_memconvert(dest, buffer, l); } else if (sizeof(DST) == 3 && l >= 4 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest24(dest, buffer, coverage, l); } else if (sizeof(DST) == 2 && sizeof(SRC) == 2 && l >= 2 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest16(dest, buffer, coverage, l); } else { blendUntransformed_unaligned(dest, buffer, coverage, l); } dest += l; length -= l; } ++spans; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; while (count--) { const quint8 coverage = (data->texture.const_alpha * spans->coverage) >> 8; if (coverage == 0) { ++spans; continue; } DST *dest = (DST*)data->rasterBuffer->scanLine(spans->y) + spans->x; const qreal cx = spans->x + qreal(0.5); const qreal cy = spans->y + qreal(0.5); qreal x = data->m21 * cy + data->m11 * cx + data->dx; qreal y = data->m22 * cy + data->m12 * cx + data->dy; qreal w = data->m23 * cy + data->m13 * cx + data->m33; int length = spans->len; while (length) { const int l = qMin(length, buffer_size); const SRC *end = buffer + l; SRC *b = buffer; while (b < end) { const qreal iw = w == 0 ? 1 : 1 / w; const qreal px = x * iw - qreal(0.5); const qreal py = y * iw - qreal(0.5); int x1 = int(px) - (px < 0); int x2 = x1 + 1; int y1 = int(py) - (py < 0); int y2 = y1 + 1; const int distx = int((px - x1) * 256); const int disty = int((py - y1) * 256); x1 = qBound(src_minx, x1, src_maxx); x2 = qBound(src_minx, x2, src_maxx); y1 = qBound(src_miny, y1, src_maxy); y2 = qBound(src_miny, y2, src_maxy); const SRC *src1 = (SRC*)data->texture.scanLine(y1); const SRC *src2 = (SRC*)data->texture.scanLine(y2); SRC tl = src1[x1]; const SRC tr = src1[x2]; SRC bl = src2[x1]; const SRC br = src2[x2]; const quint8 ax = SRC::alpha(distx); const quint8 iax = SRC::ialpha(distx); interpolate_pixel(tl, iax, tr, ax); interpolate_pixel(bl, iax, br, ax); interpolate_pixel(tl, SRC::ialpha(disty), bl, SRC::alpha(disty)); *b = tl; ++b; x += fdx; y += fdy; w += fdw; } if (!SRC::hasAlpha() && coverage == 255) { qt_memconvert(dest, buffer, l); } else if (sizeof(DST) == 3 && l >= 4 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest24(dest, buffer, coverage, l); } else if (sizeof(DST) == 2 && sizeof(SRC) == 2 && l >= 2 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest16(dest, buffer, coverage, l); } else { blendUntransformed_unaligned(dest, buffer, coverage, l); } dest += l; length -= l; } ++spans; } } } static void blend_transformed_bilinear_rgb888(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_24) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_RGB888) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_bilinear_argb6666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendTransformedBilinear(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_bilinear_rgb666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendTransformedBilinear(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_bilinear_argb8565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendTransformedBilinear(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_bilinear_rgb565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_RGB16) blendTransformedBilinear(count, spans, userData); else if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_bilinear_argb8555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendTransformedBilinear(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_bilinear_rgb555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendTransformedBilinear(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_bilinear_argb4444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendTransformedBilinear(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_bilinear_rgb444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendTransformedBilinear(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendTransformedBilinear(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } template Q_STATIC_TEMPLATE_FUNCTION void blend_transformed_bilinear_tiled_argb(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); if (data->texture.format != QImage::Format_ARGB32_Premultiplied && data->texture.format != QImage::Format_RGB32) { blend_src_generic(count, spans, userData); return; } CompositionFunction func = functionForMode[data->rasterBuffer->compositionMode]; uint buffer[buffer_size]; int image_width = data->texture.width; int image_height = data->texture.height; const int scanline_offset = data->texture.bytesPerLine / 4; if (data->fast_matrix) { // The increment pr x in the scanline int fdx = (int)(data->m11 * fixed_scale); int fdy = (int)(data->m12 * fixed_scale); while (count--) { void *t = data->rasterBuffer->scanLine(spans->y); uint *target = ((uint *)t) + spans->x; uint *image_bits = (uint *)data->texture.imageData; const qreal cx = spans->x + 0.5; const qreal cy = spans->y + 0.5; int x = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale) - half_point; int y = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale) - half_point; int length = spans->len; const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; while (length) { int l = qMin(length, buffer_size); const uint *end = buffer + l; uint *b = buffer; while (b < end) { int x1 = (x >> 16); int x2 = (x1 + 1); int y1 = (y >> 16); int y2 = (y1 + 1); int distx = ((x - (x1 << 16)) >> 8); int disty = ((y - (y1 << 16)) >> 8); int idistx = 256 - distx; int idisty = 256 - disty; x1 %= image_width; x2 %= image_width; y1 %= image_height; y2 %= image_height; if (x1 < 0) x1 += image_width; if (x2 < 0) x2 += image_width; if (y1 < 0) y1 += image_height; if (y2 < 0) y2 += image_height; Q_ASSERT(x1 >= 0 && x1 < image_width); Q_ASSERT(x2 >= 0 && x2 < image_width); Q_ASSERT(y1 >= 0 && y1 < image_height); Q_ASSERT(y2 >= 0 && y2 < image_height); int y1_offset = y1 * scanline_offset; int y2_offset = y2 * scanline_offset; #if defined(Q_IRIX_GCC3_3_WORKAROUND) uint tl = gccBug(image_bits[y1_offset + x1]); uint tr = gccBug(image_bits[y1_offset + x2]); uint bl = gccBug(image_bits[y2_offset + x1]); uint br = gccBug(image_bits[y2_offset + x2]); #else uint tl = image_bits[y1_offset + x1]; uint tr = image_bits[y1_offset + x2]; uint bl = image_bits[y2_offset + x1]; uint br = image_bits[y2_offset + x2]; #endif uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx); uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx); *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty); ++b; x += fdx; y += fdy; } if (spanMethod == RegularSpans) func(target, buffer, l, coverage); else drawBufferSpan(data, buffer, buffer_size, spans->x + spans->len - length, spans->y, l, coverage); target += l; length -= l; } ++spans; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; while (count--) { void *t = data->rasterBuffer->scanLine(spans->y); uint *target = ((uint *)t) + spans->x; uint *image_bits = (uint *)data->texture.imageData; const qreal cx = spans->x + 0.5; const qreal cy = spans->y + 0.5; qreal x = data->m21 * cy + data->m11 * cx + data->dx; qreal y = data->m22 * cy + data->m12 * cx + data->dy; qreal w = data->m23 * cy + data->m13 * cx + data->m33; int length = spans->len; const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; while (length) { int l = qMin(length, buffer_size); const uint *end = buffer + l; uint *b = buffer; while (b < end) { const qreal iw = w == 0 ? 1 : 1 / w; const qreal px = x * iw - 0.5; const qreal py = y * iw - 0.5; int x1 = int(px) - (px < 0); int x2 = x1 + 1; int y1 = int(py) - (py < 0); int y2 = y1 + 1; int distx = int((px - x1) * 256); int disty = int((py - y1) * 256); int idistx = 256 - distx; int idisty = 256 - disty; x1 %= image_width; x2 %= image_width; y1 %= image_height; y2 %= image_height; if (x1 < 0) x1 += image_width; if (x2 < 0) x2 += image_width; if (y1 < 0) y1 += image_height; if (y2 < 0) y2 += image_height; Q_ASSERT(x1 >= 0 && x1 < image_width); Q_ASSERT(x2 >= 0 && x2 < image_width); Q_ASSERT(y1 >= 0 && y1 < image_height); Q_ASSERT(y2 >= 0 && y2 < image_height); int y1_offset = y1 * scanline_offset; int y2_offset = y2 * scanline_offset; #if defined(Q_IRIX_GCC3_3_WORKAROUND) uint tl = gccBug(image_bits[y1_offset + x1]); uint tr = gccBug(image_bits[y1_offset + x2]); uint bl = gccBug(image_bits[y2_offset + x1]); uint br = gccBug(image_bits[y2_offset + x2]); #else uint tl = image_bits[y1_offset + x1]; uint tr = image_bits[y1_offset + x2]; uint bl = image_bits[y2_offset + x1]; uint br = image_bits[y2_offset + x2]; #endif uint xtop = INTERPOLATE_PIXEL_256(tl, idistx, tr, distx); uint xbot = INTERPOLATE_PIXEL_256(bl, idistx, br, distx); *b = INTERPOLATE_PIXEL_256(xtop, idisty, xbot, disty); ++b; x += fdx; y += fdy; w += fdw; } if (spanMethod == RegularSpans) func(target, buffer, l, coverage); else drawBufferSpan(data, buffer, buffer_size, spans->x + spans->len - length, spans->y, l, coverage); target += l; length -= l; } ++spans; } } } template Q_STATIC_TEMPLATE_FUNCTION void blend_transformed_argb(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); if (data->texture.format != QImage::Format_ARGB32_Premultiplied && data->texture.format != QImage::Format_RGB32) { blend_src_generic(count, spans, userData); return; } CompositionFunction func = functionForMode[data->rasterBuffer->compositionMode]; uint buffer[buffer_size]; int image_width = data->texture.width; int image_height = data->texture.height; const int scanline_offset = data->texture.bytesPerLine / 4; if (data->fast_matrix) { // The increment pr x in the scanline int fdx = (int)(data->m11 * fixed_scale); int fdy = (int)(data->m12 * fixed_scale); while (count--) { void *t = data->rasterBuffer->scanLine(spans->y); uint *target = ((uint *)t) + spans->x; uint *image_bits = (uint *)data->texture.imageData; const qreal cx = spans->x + 0.5; const qreal cy = spans->y + 0.5; int x = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale); int y = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale); int length = spans->len; const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; while (length) { int l = qMin(length, buffer_size); const uint *end = buffer + l; uint *b = buffer; while (b < end) { int px = x >> 16; int py = y >> 16; bool out = (px < 0) || (px >= image_width) || (py < 0) || (py >= image_height); int y_offset = py * scanline_offset; *b = out ? uint(0) : image_bits[y_offset + px]; x += fdx; y += fdy; ++b; } if (spanMethod == RegularSpans) func(target, buffer, l, coverage); else drawBufferSpan(data, buffer, buffer_size, spans->x + spans->len - length, spans->y, l, coverage); target += l; length -= l; } ++spans; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; while (count--) { void *t = data->rasterBuffer->scanLine(spans->y); uint *target = ((uint *)t) + spans->x; uint *image_bits = (uint *)data->texture.imageData; const qreal cx = spans->x + 0.5; const qreal cy = spans->y + 0.5; qreal x = data->m21 * cy + data->m11 * cx + data->dx; qreal y = data->m22 * cy + data->m12 * cx + data->dy; qreal w = data->m23 * cy + data->m13 * cx + data->m33; int length = spans->len; const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; while (length) { int l = qMin(length, buffer_size); const uint *end = buffer + l; uint *b = buffer; while (b < end) { const qreal iw = w == 0 ? 1 : 1 / w; const qreal tx = x * iw; const qreal ty = y * iw; const int px = int(tx) - (tx < 0); const int py = int(ty) - (ty < 0); bool out = (px < 0) || (px >= image_width) || (py < 0) || (py >= image_height); int y_offset = py * scanline_offset; *b = out ? uint(0) : image_bits[y_offset + px]; x += fdx; y += fdy; w += fdw; ++b; } if (spanMethod == RegularSpans) func(target, buffer, l, coverage); else drawBufferSpan(data, buffer, buffer_size, spans->x + spans->len - length, spans->y, l, coverage); target += l; length -= l; } ++spans; } } } template Q_STATIC_TEMPLATE_FUNCTION void blendTransformed(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); QPainter::CompositionMode mode = data->rasterBuffer->compositionMode; if (mode != QPainter::CompositionMode_SourceOver) { blend_src_generic(count, spans, userData); return; } SRC buffer[buffer_size]; const int image_width = data->texture.width; const int image_height = data->texture.height; if (data->fast_matrix) { // The increment pr x in the scanline const int fdx = (int)(data->m11 * fixed_scale); const int fdy = (int)(data->m12 * fixed_scale); while (count--) { const quint8 coverage = (data->texture.const_alpha * spans->coverage) >> 8; if (coverage == 0) { ++spans; continue; } DST *dest = (DST*)data->rasterBuffer->scanLine(spans->y) + spans->x; const qreal cx = spans->x + qreal(0.5); const qreal cy = spans->y + qreal(0.5); int x = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale); int y = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale); int length = spans->len; while (length) { const int l = qMin(length, buffer_size); const SRC *end = buffer + l; SRC *b = buffer; while (b < end) { const int px = (x >> 16); const int py = (y >> 16); if ((px < 0) || (px >= image_width) || (py < 0) || (py >= image_height)) { *b = 0; } else { *b = ((SRC*)data->texture.scanLine(py))[px]; } ++b; x += fdx; y += fdy; } if (!SRC::hasAlpha() && coverage == 255) { qt_memconvert(dest, buffer, l); } else if (sizeof(DST) == 3 && sizeof(SRC) == 3 && l >= 4 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest24(dest, buffer, coverage, l); } else if (sizeof(DST) == 2 && sizeof(SRC) == 2 && l >= 2 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest16(dest, buffer, coverage, l); } else { blendUntransformed_unaligned(dest, buffer, coverage, l); } dest += l; length -= l; } ++spans; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; while (count--) { const quint8 coverage = (data->texture.const_alpha * spans->coverage) >> 8; if (coverage == 0) { ++spans; continue; } DST *dest = (DST*)data->rasterBuffer->scanLine(spans->y) + spans->x; const qreal cx = spans->x + qreal(0.5); const qreal cy = spans->y + qreal(0.5); qreal x = data->m21 * cy + data->m11 * cx + data->dx; qreal y = data->m22 * cy + data->m12 * cx + data->dy; qreal w = data->m23 * cy + data->m13 * cx + data->m33; int length = spans->len; while (length) { const int l = qMin(length, buffer_size); const SRC *end = buffer + l; SRC *b = buffer; while (b < end) { const qreal iw = w == 0 ? 1 : 1 / w; const qreal tx = x * iw; const qreal ty = y * iw; const int px = int(tx) - (tx < 0); const int py = int(ty) - (ty < 0); if ((px < 0) || (px >= image_width) || (py < 0) || (py >= image_height)) { *b = 0; } else { *b = ((SRC*)data->texture.scanLine(py))[px]; } ++b; x += fdx; y += fdy; w += fdw; } if (!SRC::hasAlpha() && coverage == 255) { qt_memconvert(dest, buffer, l); } else if (sizeof(DST) == 3 && sizeof(SRC) == 3 && l >= 4 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest24(dest, buffer, coverage, l); } else if (sizeof(DST) == 2 && sizeof(SRC) == 2 && l >= 2 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest16(dest, buffer, coverage, l); } else { blendUntransformed_unaligned(dest, buffer, coverage, l); } dest += l; length -= l; } ++spans; } } } static void blend_transformed_rgb888(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_24) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_RGB888) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_argb6666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendTransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_rgb666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendTransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_argb8565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendTransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_rgb565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendTransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_argb8555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendTransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_rgb555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendTransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_argb4444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendTransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_rgb444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendTransformed(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendTransformed(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } template Q_STATIC_TEMPLATE_FUNCTION void blend_transformed_tiled_argb(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); if (data->texture.format != QImage::Format_ARGB32_Premultiplied && data->texture.format != QImage::Format_RGB32) { blend_src_generic(count, spans, userData); return; } CompositionFunction func = functionForMode[data->rasterBuffer->compositionMode]; uint buffer[buffer_size]; int image_width = data->texture.width; int image_height = data->texture.height; const int scanline_offset = data->texture.bytesPerLine / 4; if (data->fast_matrix) { // The increment pr x in the scanline int fdx = (int)(data->m11 * fixed_scale); int fdy = (int)(data->m12 * fixed_scale); while (count--) { void *t = data->rasterBuffer->scanLine(spans->y); uint *target = ((uint *)t) + spans->x; uint *image_bits = (uint *)data->texture.imageData; const qreal cx = spans->x + 0.5; const qreal cy = spans->y + 0.5; int x = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale); int y = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale); const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; int length = spans->len; while (length) { int l = qMin(length, buffer_size); const uint *end = buffer + l; uint *b = buffer; while (b < end) { int px = x >> 16; int py = y >> 16; px %= image_width; py %= image_height; if (px < 0) px += image_width; if (py < 0) py += image_height; int y_offset = py * scanline_offset; Q_ASSERT(px >= 0 && px < image_width); Q_ASSERT(py >= 0 && py < image_height); *b = image_bits[y_offset + px]; x += fdx; y += fdy; ++b; } if (spanMethod == RegularSpans) func(target, buffer, l, coverage); else drawBufferSpan(data, buffer, buffer_size, spans->x + spans->len - length, spans->y, l, coverage); target += l; length -= l; } ++spans; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; while (count--) { void *t = data->rasterBuffer->scanLine(spans->y); uint *target = ((uint *)t) + spans->x; uint *image_bits = (uint *)data->texture.imageData; const qreal cx = spans->x + 0.5; const qreal cy = spans->y + 0.5; qreal x = data->m21 * cy + data->m11 * cx + data->dx; qreal y = data->m22 * cy + data->m12 * cx + data->dy; qreal w = data->m23 * cy + data->m13 * cx + data->m33; const int coverage = (spans->coverage * data->texture.const_alpha) >> 8; int length = spans->len; while (length) { int l = qMin(length, buffer_size); const uint *end = buffer + l; uint *b = buffer; while (b < end) { const qreal iw = w == 0 ? 1 : 1 / w; const qreal tx = x * iw; const qreal ty = y * iw; int px = int(tx) - (tx < 0); int py = int(ty) - (ty < 0); px %= image_width; py %= image_height; if (px < 0) px += image_width; if (py < 0) py += image_height; int y_offset = py * scanline_offset; Q_ASSERT(px >= 0 && px < image_width); Q_ASSERT(py >= 0 && py < image_height); *b = image_bits[y_offset + px]; x += fdx; y += fdy; w += fdw; //force increment to avoid /0 if (!w) { w += fdw; } ++b; } if (spanMethod == RegularSpans) func(target, buffer, l, coverage); else drawBufferSpan(data, buffer, buffer_size, spans->x + spans->len - length, spans->y, l, coverage); target += l; length -= l; } ++spans; } } } template Q_STATIC_TEMPLATE_FUNCTION void blendTransformedTiled(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); QPainter::CompositionMode mode = data->rasterBuffer->compositionMode; if (mode != QPainter::CompositionMode_SourceOver) { blend_src_generic(count, spans, userData); return; } SRC buffer[buffer_size]; const int image_width = data->texture.width; const int image_height = data->texture.height; if (data->fast_matrix) { // The increment pr x in the scanline const int fdx = (int)(data->m11 * fixed_scale); const int fdy = (int)(data->m12 * fixed_scale); while (count--) { const quint8 coverage = (data->texture.const_alpha * spans->coverage) >> 8; if (coverage == 0) { ++spans; continue; } DST *dest = (DST*)data->rasterBuffer->scanLine(spans->y) + spans->x; const qreal cx = spans->x + qreal(0.5); const qreal cy = spans->y + qreal(0.5); int x = int((data->m21 * cy + data->m11 * cx + data->dx) * fixed_scale); int y = int((data->m22 * cy + data->m12 * cx + data->dy) * fixed_scale); int length = spans->len; while (length) { const int l = qMin(length, buffer_size); const SRC *end = buffer + l; SRC *b = buffer; while (b < end) { int px = (x >> 16) % image_width; int py = (y >> 16) % image_height; if (px < 0) px += image_width; if (py < 0) py += image_height; *b = ((SRC*)data->texture.scanLine(py))[px]; ++b; x += fdx; y += fdy; } if (!SRC::hasAlpha() && coverage == 255) { qt_memconvert(dest, buffer, l); } else if (sizeof(DST) == 3 && sizeof(SRC) == 3 && l >= 4 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest24(dest, buffer, coverage, l); } else if (sizeof(DST) == 2 && sizeof(SRC) == 2 && l >= 2 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest16(dest, buffer, coverage, l); } else { blendUntransformed_unaligned(dest, buffer, coverage, l); } dest += l; length -= l; } ++spans; } } else { const qreal fdx = data->m11; const qreal fdy = data->m12; const qreal fdw = data->m13; while (count--) { const quint8 coverage = (data->texture.const_alpha * spans->coverage) >> 8; if (coverage == 0) { ++spans; continue; } DST *dest = (DST*)data->rasterBuffer->scanLine(spans->y) + spans->x; const qreal cx = spans->x + qreal(0.5); const qreal cy = spans->y + qreal(0.5); qreal x = data->m21 * cy + data->m11 * cx + data->dx; qreal y = data->m22 * cy + data->m12 * cx + data->dy; qreal w = data->m23 * cy + data->m13 * cx + data->m33; int length = spans->len; while (length) { const int l = qMin(length, buffer_size); const SRC *end = buffer + l; SRC *b = buffer; while (b < end) { const qreal iw = w == 0 ? 1 : 1 / w; const qreal tx = x * iw; const qreal ty = y * iw; int px = int(tx) - (tx < 0); int py = int(ty) - (ty < 0); if (px < 0) px += image_width; if (py < 0) py += image_height; *b = ((SRC*)data->texture.scanLine(py))[px]; ++b; x += fdx; y += fdy; w += fdw; // force increment to avoid /0 if (!w) w += fdw; } if (!SRC::hasAlpha() && coverage == 255) { qt_memconvert(dest, buffer, l); } else if (sizeof(DST) == 3 && sizeof(SRC) == 3 && l >= 4 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest24(dest, buffer, coverage, l); } else if (sizeof(DST) == 2 && sizeof(SRC) == 2 && l >= 2 && (quintptr(dest) & 3) == (quintptr(buffer) & 3)) { blendUntransformed_dest16(dest, buffer, coverage, l); } else { blendUntransformed_unaligned(dest, buffer, coverage, l); } dest += l; length -= l; } ++spans; } } } static void blend_transformed_tiled_rgb888(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_24) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_RGB888) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_tiled_argb6666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendTransformedTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_tiled_rgb666(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_18) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB6666_Premultiplied) blendTransformedTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB666) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_tiled_argb8565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendTransformedTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_tiled_rgb565(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_16) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8565_Premultiplied) blendTransformedTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB16) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_tiled_argb8555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendTransformedTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_tiled_rgb555(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_15) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB8555_Premultiplied) blendTransformedTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB555) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_tiled_argb4444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendTransformedTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } static void blend_transformed_tiled_rgb444(int count, const QSpan *spans, void *userData) { #if !defined(Q_WS_QWS) || defined(QT_QWS_DEPTH_12) QSpanData *data = reinterpret_cast(userData); if (data->texture.format == QImage::Format_ARGB4444_Premultiplied) blendTransformedTiled(count, spans, userData); else if (data->texture.format == QImage::Format_RGB444) blendTransformedTiled(count, spans, userData); else #endif blend_src_generic(count, spans, userData); } # define SPANFUNC_POINTER(Name, Arg) Name /* Image formats here are target formats */ static const ProcessSpans processTextureSpans[NBlendTypes][QImage::NImageFormats] = { // Untransformed { 0, // Invalid SPANFUNC_POINTER(blend_untransformed_generic, RegularSpans), // Mono SPANFUNC_POINTER(blend_untransformed_generic, RegularSpans), // MonoLsb SPANFUNC_POINTER(blend_untransformed_generic, RegularSpans), // Indexed8 SPANFUNC_POINTER(blend_untransformed_generic, RegularSpans), // RGB32 SPANFUNC_POINTER(blend_untransformed_generic, RegularSpans), // ARGB32 SPANFUNC_POINTER(blend_untransformed_argb, RegularSpans), // ARGB32_Premultiplied blend_untransformed_rgb565, blend_untransformed_argb8565, blend_untransformed_rgb666, blend_untransformed_argb6666, blend_untransformed_rgb555, blend_untransformed_argb8555, blend_untransformed_rgb888, blend_untransformed_rgb444, blend_untransformed_argb4444, }, // Tiled { 0, // Invalid SPANFUNC_POINTER(blend_tiled_generic, RegularSpans), // Mono SPANFUNC_POINTER(blend_tiled_generic, RegularSpans), // MonoLsb SPANFUNC_POINTER(blend_tiled_generic, RegularSpans), // Indexed8 SPANFUNC_POINTER(blend_tiled_generic, RegularSpans), // RGB32 SPANFUNC_POINTER(blend_tiled_generic, RegularSpans), // ARGB32 SPANFUNC_POINTER(blend_tiled_argb, RegularSpans), // ARGB32_Premultiplied blend_tiled_rgb565, blend_tiled_argb8565, blend_tiled_rgb666, blend_tiled_argb6666, blend_tiled_rgb555, blend_tiled_argb8555, blend_tiled_rgb888, blend_tiled_rgb444, blend_tiled_argb4444, }, // Transformed { 0, // Invalid SPANFUNC_POINTER(blend_src_generic, RegularSpans), // Mono SPANFUNC_POINTER(blend_src_generic, RegularSpans), // MonoLsb SPANFUNC_POINTER(blend_src_generic, RegularSpans), // Indexed8 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB32 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // ARGB32 SPANFUNC_POINTER(blend_transformed_argb, RegularSpans), // ARGB32_Premultiplied blend_transformed_rgb565, blend_transformed_argb8565, blend_transformed_rgb666, blend_transformed_argb6666, blend_transformed_rgb555, blend_transformed_argb8555, blend_transformed_rgb888, blend_transformed_rgb444, blend_transformed_argb4444, }, // TransformedTiled { 0, SPANFUNC_POINTER(blend_src_generic, RegularSpans), // Mono SPANFUNC_POINTER(blend_src_generic, RegularSpans), // MonoLsb SPANFUNC_POINTER(blend_src_generic, RegularSpans), // Indexed8 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB32 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // ARGB32 SPANFUNC_POINTER(blend_transformed_tiled_argb, RegularSpans), // ARGB32_Premultiplied blend_transformed_tiled_rgb565, blend_transformed_tiled_argb8565, blend_transformed_tiled_rgb666, blend_transformed_tiled_argb6666, blend_transformed_tiled_rgb555, blend_transformed_tiled_argb8555, blend_transformed_tiled_rgb888, blend_transformed_tiled_rgb444, blend_transformed_tiled_argb4444 }, // Bilinear { 0, SPANFUNC_POINTER(blend_src_generic, RegularSpans), // Mono SPANFUNC_POINTER(blend_src_generic, RegularSpans), // MonoLsb SPANFUNC_POINTER(blend_src_generic, RegularSpans), // Indexed8 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB32 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // ARGB32 SPANFUNC_POINTER(blend_transformed_bilinear_argb, RegularSpans), // ARGB32_Premultiplied blend_transformed_bilinear_rgb565, blend_transformed_bilinear_argb8565, blend_transformed_bilinear_rgb666, blend_transformed_bilinear_argb6666, blend_transformed_bilinear_rgb555, blend_transformed_bilinear_argb8555, blend_transformed_bilinear_rgb888, blend_transformed_bilinear_rgb444, blend_transformed_bilinear_argb4444, }, // BilinearTiled { 0, SPANFUNC_POINTER(blend_src_generic, RegularSpans), // Mono SPANFUNC_POINTER(blend_src_generic, RegularSpans), // MonoLsb SPANFUNC_POINTER(blend_src_generic, RegularSpans), // Indexed8 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB32 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // ARGB32 SPANFUNC_POINTER(blend_transformed_bilinear_tiled_argb, RegularSpans), // ARGB32_Premultiplied SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB16 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // ARGB8565_Premultiplied SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB666 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // ARGB6666_Premultiplied SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB555 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // ARGB8555_Premultiplied SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB888 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // RGB444 SPANFUNC_POINTER(blend_src_generic, RegularSpans), // ARGB4444_Premultiplied } }; #if defined (Q_WS_QWS) && !defined(QT_NO_RASTERCALLBACKS) static const ProcessSpans processTextureSpansCallback[NBlendTypes][QImage::NImageFormats] = { // Untransformed { 0, // Invalid blend_untransformed_generic, // Mono blend_untransformed_generic, // MonoLsb blend_untransformed_generic, // Indexed8 blend_untransformed_generic, // RGB32 blend_untransformed_generic, // ARGB32 blend_untransformed_argb, // ARGB32_Premultiplied blend_untransformed_generic, // RGB16 blend_untransformed_generic, // ARGB8565_Premultiplied blend_untransformed_generic, // RGB666 blend_untransformed_generic, // ARGB6666_Premultiplied blend_untransformed_generic, // RGB555 blend_untransformed_generic, // ARGB8555_Premultiplied blend_untransformed_generic, // RGB888 blend_untransformed_generic, // RGB444 blend_untransformed_generic // ARGB4444_Premultiplied }, // Tiled { 0, // Invalid blend_tiled_generic, // Mono blend_tiled_generic, // MonoLsb blend_tiled_generic, // Indexed8 blend_tiled_generic, // RGB32 blend_tiled_generic, // ARGB32 blend_tiled_argb, // ARGB32_Premultiplied blend_tiled_generic, // RGB16 blend_tiled_generic, // ARGB8565_Premultiplied blend_tiled_generic, // RGB666 blend_tiled_generic, // ARGB6666_Premultiplied blend_tiled_generic, // RGB555 blend_tiled_generic, // ARGB8555_Premultiplied blend_tiled_generic, // RGB888 blend_tiled_generic, // RGB444 blend_tiled_generic // ARGB4444_Premultiplied }, // Transformed { 0, // Invalid blend_src_generic, // Mono blend_src_generic, // MonoLsb blend_src_generic, // Indexed8 blend_src_generic, // RGB32 blend_src_generic, // ARGB32 blend_transformed_argb, // ARGB32_Premultiplied blend_src_generic, // RGB16 blend_src_generic, // ARGB8565_Premultiplied blend_src_generic, // RGB666 blend_src_generic, // ARGB6666_Premultiplied blend_src_generic, // RGB555 blend_src_generic, // ARGB8555_Premultiplied blend_src_generic, // RGB888 blend_src_generic, // RGB444 blend_src_generic, // ARGB4444_Premultiplied }, // TransformedTiled { 0, blend_src_generic, // Mono blend_src_generic, // MonoLsb blend_src_generic, // Indexed8 blend_src_generic, // RGB32 blend_src_generic, // ARGB32 blend_transformed_tiled_argb, // ARGB32_Premultiplied blend_src_generic, // RGB16 blend_src_generic, // ARGB8565_Premultiplied blend_src_generic, // RGB666 blend_src_generic, // ARGB6666_Premultiplied blend_src_generic, // RGB555 blend_src_generic, // ARGB8555_Premultiplied blend_src_generic, // RGB888 blend_src_generic, // RGB444 blend_src_generic // ARGB4444_Premultiplied }, // Bilinear { 0, blend_src_generic, // Mono blend_src_generic, // MonoLsb blend_src_generic, // Indexed8 blend_src_generic, // RGB32 blend_src_generic, // ARGB32 blend_transformed_bilinear_argb, // ARGB32_Premultiplied blend_src_generic, // RGB16 blend_src_generic, // ARGB8565_Premultiplied blend_src_generic, // RGB666 blend_src_generic, // ARGB6666_Premultiplied blend_src_generic, // RGB555 blend_src_generic, // ARGB8555_Premultiplied blend_src_generic, // RGB888 blend_src_generic, // RGB444 blend_src_generic // ARGB4444_Premultiplied }, // BilinearTiled { 0, blend_src_generic, // Mono blend_src_generic, // MonoLsb blend_src_generic, // Indexed8 blend_src_generic, // RGB32 blend_src_generic, // ARGB32 blend_transformed_bilinear_tiled_argb, // ARGB32_Premultiplied blend_src_generic, // RGB16 blend_src_generic, // ARGB8565_Premultiplied blend_src_generic, // RGB666 blend_src_generic, // ARGB6666_Premultiplied blend_src_generic, // RGB555 blend_src_generic, // ARGB8555_Premultiplied blend_src_generic, // RGB888 blend_src_generic, // RGB444 blend_src_generic // ARGB4444_Premultiplied } }; #endif // QT_NO_RASTERCALLBACKS void qBlendTexture(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); ProcessSpans proc = processTextureSpans[getBlendType(data)][data->rasterBuffer->format]; proc(count, spans, userData); } #if defined (Q_WS_QWS) && !defined(QT_NO_RASTERCALLBACKS) void qBlendTextureCallback(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); ProcessSpans proc = processTextureSpansCallback[getBlendType(data)][data->rasterBuffer->format]; proc(count, spans, userData); } #endif // QT_NO_RASTERCALLBACKS template inline void qt_bitmapblit_template(QRasterBuffer *rasterBuffer, int x, int y, quint32 color, const uchar *map, int mapWidth, int mapHeight, int mapStride, DST dummy = 0) { Q_UNUSED(dummy); const DST c = qt_colorConvert(color, 0); DST *dest = reinterpret_cast(rasterBuffer->scanLine(y)) + x; const int destStride = rasterBuffer->bytesPerLine() / sizeof(DST); if (mapWidth > 8) { while (mapHeight--) { int x0 = 0; int n = 0; for (int x = 0; x < mapWidth; x += 8) { uchar s = map[x >> 3]; for (int i = 0; i < 8; ++i) { if (s & 0x80) { ++n; } else { if (n) { qt_memfill(dest + x0, c, n); x0 += n + 1; n = 0; } else { ++x0; } if (!s) { x0 += 8 - 1 - i; break; } } s <<= 1; } } if (n) qt_memfill(dest + x0, c, n); dest += destStride; map += mapStride; } } else { while (mapHeight--) { int x0 = 0; int n = 0; for (uchar s = *map; s; s <<= 1) { if (s & 0x80) { ++n; } else if (n) { qt_memfill(dest + x0, c, n); x0 += n + 1; n = 0; } else { ++x0; } } if (n) qt_memfill(dest + x0, c, n); dest += destStride; map += mapStride; } } } static void qt_gradient_quint32(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); bool isVerticalGradient = data->txop <= QTransform::TxScale && data->type == QSpanData::LinearGradient && data->gradient.linear.end.x == data->gradient.linear.origin.x; if (isVerticalGradient) { LinearGradientValues linear; getLinearGradientValues(&linear, data); CompositionFunctionSolid funcSolid = functionForModeSolid[data->rasterBuffer->compositionMode]; /* The logic for vertical gradient calculations is a mathematically reduced copy of that in fetchLinearGradient() - which is basically: qreal ry = data->m22 * (y + 0.5) + data->dy; qreal t = linear.dy*ry + linear.off; t *= (GRADIENT_STOPTABLE_SIZE - 1); quint32 color = qt_gradient_pixel_fixed(&data->gradient, int(t * FIXPT_SIZE)); This has then been converted to fixed point to improve performance. */ const int gss = GRADIENT_STOPTABLE_SIZE - 1; int yinc = int((linear.dy * data->m22 * gss) * FIXPT_SIZE); int off = int((((linear.dy * (data->m22 * 0.5 + data->dy) + linear.off) * gss) * FIXPT_SIZE)); while (count--) { int y = spans->y; int x = spans->x; quint32 *dst = (quint32 *)(data->rasterBuffer->scanLine(y)) + x; quint32 color = qt_gradient_pixel_fixed(&data->gradient, yinc * y + off); funcSolid(dst, spans->len, color, spans->coverage); ++spans; } } else { blend_src_generic(count, spans, userData); } } static void qt_gradient_quint16(int count, const QSpan *spans, void *userData) { QSpanData *data = reinterpret_cast(userData); bool isVerticalGradient = data->txop <= QTransform::TxScale && data->type == QSpanData::LinearGradient && data->gradient.linear.end.x == data->gradient.linear.origin.x; if (isVerticalGradient) { LinearGradientValues linear; getLinearGradientValues(&linear, data); /* The logic for vertical gradient calculations is a mathematically reduced copy of that in fetchLinearGradient() - which is basically: qreal ry = data->m22 * (y + 0.5) + data->dy; qreal t = linear.dy*ry + linear.off; t *= (GRADIENT_STOPTABLE_SIZE - 1); quint32 color = qt_gradient_pixel_fixed(&data->gradient, int(t * FIXPT_SIZE)); This has then been converted to fixed point to improve performance. */ const int gss = GRADIENT_STOPTABLE_SIZE - 1; int yinc = int((linear.dy * data->m22 * gss) * FIXPT_SIZE); int off = int((((linear.dy * (data->m22 * 0.5 + data->dy) + linear.off) * gss) * FIXPT_SIZE)); uint oldColor = data->solid.color; while (count--) { int y = spans->y; quint32 color = qt_gradient_pixel_fixed(&data->gradient, yinc * y + off); data->solid.color = color; blend_color_rgb16(1, spans, userData); ++spans; } data->solid.color = oldColor; } else { blend_src_generic(count, spans, userData); } } inline static void qt_bitmapblit_quint32(QRasterBuffer *rasterBuffer, int x, int y, quint32 color, const uchar *map, int mapWidth, int mapHeight, int mapStride) { qt_bitmapblit_template(rasterBuffer, x, y, color, map, mapWidth, mapHeight, mapStride); } inline static void qt_bitmapblit_quint16(QRasterBuffer *rasterBuffer, int x, int y, quint32 color, const uchar *map, int mapWidth, int mapHeight, int mapStride) { qt_bitmapblit_template(rasterBuffer, x, y, color, map, mapWidth, mapHeight, mapStride); } uchar qt_pow_rgb_gamma[256]; uchar qt_pow_rgb_invgamma[256]; uint qt_pow_gamma[256]; uchar qt_pow_invgamma[2048]; static void qt_alphamapblit_quint16(QRasterBuffer *rasterBuffer, int x, int y, quint32 color, const uchar *map, int mapWidth, int mapHeight, int mapStride, const QClipData *) { const quint16 c = qt_colorConvert(color, 0); quint16 *dest = reinterpret_cast(rasterBuffer->scanLine(y)) + x; const int destStride = rasterBuffer->bytesPerLine() / sizeof(quint16); while (mapHeight--) { for (int i = 0; i < mapWidth; ++i) { const int coverage = map[i]; if (coverage == 0) { // nothing } else if (coverage == 255) { dest[i] = c; } else { int ialpha = 255 - coverage; dest[i] = BYTE_MUL_RGB16(c, coverage) + BYTE_MUL_RGB16(dest[i], ialpha); } } dest += destStride; map += mapStride; } } void qt_build_pow_tables() { qreal smoothing = 1.7; #ifdef Q_WS_WIN int winSmooth; if (SystemParametersInfo(0x200C /* SPI_GETFONTSMOOTHINGCONTRAST */, 0, &winSmooth, 0)) smoothing = winSmooth / 1000.0; #endif #ifdef Q_WS_X11 Q_UNUSED(smoothing); for (int i=0; i<256; ++i) { qt_pow_rgb_gamma[i] = uchar(i); qt_pow_rgb_invgamma[i] = uchar(i); } #else for (int i=0; i<256; ++i) { qt_pow_rgb_gamma[i] = uchar(qRound(pow(i / 255.0, smoothing) * 255)); qt_pow_rgb_invgamma[i] = uchar(qRound(pow(i / 255.0, 1 / smoothing) * 255)); } #endif #if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) const qreal gray_gamma = 2.31; for (int i=0; i<256; ++i) qt_pow_gamma[i] = uint(qRound(pow(i / 255.0, gray_gamma) * 2047)); for (int i=0; i<2048; ++i) qt_pow_invgamma[i] = uchar(qRound(pow(i / 2047.0, 1 / gray_gamma) * 255)); #endif } static inline void rgbBlendPixel(quint32 *dst, int coverage, int sr, int sg, int sb) { // Do a gray alphablend... int da = qAlpha(*dst); int dr = qRed(*dst); int dg = qGreen(*dst); int db = qBlue(*dst); if (da != 255 #if defined (Q_WS_WIN) // Work around GDI messing up alpha channel && qRed(*dst) <= da && qBlue(*dst) <= da && qGreen(*dst) <= da #endif ) { int a = qGray(coverage); sr = qt_div_255(sr * a); sg = qt_div_255(sg * a); sb = qt_div_255(sb * a); int ia = 255 - a; dr = qt_div_255(dr * ia); dg = qt_div_255(dg * ia); db = qt_div_255(db * ia); *dst = ((a + qt_div_255((255 - a) * da)) << 24) | ((sr + dr) << 16) | ((sg + dg) << 8) | ((sb + db)); return; } int mr = qRed(coverage); int mg = qGreen(coverage); int mb = qBlue(coverage); dr = qt_pow_rgb_gamma[dr]; dg = qt_pow_rgb_gamma[dg]; db = qt_pow_rgb_gamma[db]; int nr = qt_div_255((sr - dr) * mr) + dr; int ng = qt_div_255((sg - dg) * mg) + dg; int nb = qt_div_255((sb - db) * mb) + db; nr = qt_pow_rgb_invgamma[nr]; ng = qt_pow_rgb_invgamma[ng]; nb = qt_pow_rgb_invgamma[nb]; *dst = qRgb(nr, ng, nb); } #if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) static inline void grayBlendPixel(quint32 *dst, int coverage, int sr, int sg, int sb) { // Do a gammacorrected gray alphablend... int dr = qRed(*dst); int dg = qGreen(*dst); int db = qBlue(*dst); dr = qt_pow_gamma[dr]; dg = qt_pow_gamma[dg]; db = qt_pow_gamma[db]; int alpha = coverage; int ialpha = 255 - alpha; int nr = (sr * alpha + ialpha * dr) / 255; int ng = (sg * alpha + ialpha * dg) / 255; int nb = (sb * alpha + ialpha * db) / 255; nr = qt_pow_invgamma[nr]; ng = qt_pow_invgamma[ng]; nb = qt_pow_invgamma[nb]; *dst = qRgb(nr, ng, nb); } #endif static void qt_alphamapblit_quint32(QRasterBuffer *rasterBuffer, int x, int y, quint32 color, const uchar *map, int mapWidth, int mapHeight, int mapStride, const QClipData *clip) { const quint32 c = color; const int destStride = rasterBuffer->bytesPerLine() / sizeof(quint32); #if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); sr = qt_pow_gamma[sr]; sg = qt_pow_gamma[sg]; sb = qt_pow_gamma[sb]; bool opaque_src = (qAlpha(color) == 255); #endif if (!clip) { quint32 *dest = reinterpret_cast(rasterBuffer->scanLine(y)) + x; while (mapHeight--) { for (int i = 0; i < mapWidth; ++i) { const int coverage = map[i]; if (coverage == 0) { // nothing } else if (coverage == 255) { dest[i] = c; } else { #if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) if (QSysInfo::WindowsVersion >= QSysInfo::WV_XP && opaque_src && qAlpha(dest[i]) == 255) { grayBlendPixel(dest+i, coverage, sr, sg, sb); } else #endif { int ialpha = 255 - coverage; dest[i] = INTERPOLATE_PIXEL_255(c, coverage, dest[i], ialpha); } } } dest += destStride; map += mapStride; } } else { int bottom = qMin(y + mapHeight, rasterBuffer->height()); int top = qMax(y, 0); map += (top - y) * mapStride; const_cast(clip)->initialize(); for (int yp = top; ypm_clipLines[yp]; quint32 *dest = reinterpret_cast(rasterBuffer->scanLine(yp)); for (int i=0; i(x, clip.x); int end = qMin(x + mapWidth, clip.x + clip.len); for (int xp=start; xp= QSysInfo::WV_XP && opaque_src && qAlpha(dest[xp]) == 255) { grayBlendPixel(dest+xp, coverage, sr, sg, sb); } else #endif { int ialpha = 255 - coverage; dest[xp] = INTERPOLATE_PIXEL_255(c, coverage, dest[xp], ialpha); } } } // for (i -> line.count) } // for (yp -> bottom) map += mapStride; } } } static void qt_alphargbblit_quint32(QRasterBuffer *rasterBuffer, int x, int y, quint32 color, const uint *src, int mapWidth, int mapHeight, int srcStride, const QClipData *clip) { const quint32 c = color; int sr = qRed(color); int sg = qGreen(color); int sb = qBlue(color); int sa = qAlpha(color); sr = qt_pow_rgb_gamma[sr]; sg = qt_pow_rgb_gamma[sg]; sb = qt_pow_rgb_gamma[sb]; if (sa == 0) return; if (!clip) { quint32 *dst = reinterpret_cast(rasterBuffer->scanLine(y)) + x; const int destStride = rasterBuffer->bytesPerLine() / sizeof(quint32); while (mapHeight--) { for (int i = 0; i < mapWidth; ++i) { const uint coverage = src[i]; if (coverage == 0xffffffff) { dst[i] = c; } else if (coverage != 0xff000000) { rgbBlendPixel(dst+i, coverage, sr, sg, sb); } } dst += destStride; src += srcStride; } } else { int bottom = qMin(y + mapHeight, rasterBuffer->height()); int top = qMax(y, 0); src += (top - y) * srcStride; const_cast(clip)->initialize(); for (int yp = top; ypm_clipLines[yp]; quint32 *dst = reinterpret_cast(rasterBuffer->scanLine(yp)); for (int i=0; i(x, clip.x); int end = qMin(x + mapWidth, clip.x + clip.len); for (int xp=start; xp line.count) src += srcStride; } // for (yp -> bottom) } } template inline void qt_rectfill_template(QRasterBuffer *rasterBuffer, int x, int y, int width, int height, quint32 color, T dummy = 0) { Q_UNUSED(dummy); qt_rectfill(reinterpret_cast(rasterBuffer->buffer()), qt_colorConvert(quint32p::fromRawData(color), 0), x, y, width, height, rasterBuffer->bytesPerLine()); } #define QT_RECTFILL(T) \ inline static void qt_rectfill_##T(QRasterBuffer *rasterBuffer, \ int x, int y, int width, int height, \ quint32 color) \ { \ qt_rectfill_template(rasterBuffer, x, y, width, height, color); \ } QT_RECTFILL(quint32) QT_RECTFILL(quint16) QT_RECTFILL(qargb8565) QT_RECTFILL(qrgb666); QT_RECTFILL(qargb6666); QT_RECTFILL(qrgb555) QT_RECTFILL(qargb8555) QT_RECTFILL(qrgb888) QT_RECTFILL(qrgb444); QT_RECTFILL(qargb4444); #undef QT_RECTFILL // Map table for destination image format. Contains function pointers // for blends of various types unto the destination DrawHelper qDrawHelper[QImage::NImageFormats] = { // Format_Invalid, { 0, 0, 0, 0, 0, 0 }, // Format_Mono, { blend_color_generic, SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, 0 }, // Format_MonoLSB, { blend_color_generic, SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, 0 }, // Format_Indexed8, { blend_color_generic, SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, 0 }, // Format_RGB32, { blend_color_argb, qt_gradient_quint32, qt_bitmapblit_quint32, qt_alphamapblit_quint32, qt_alphargbblit_quint32, qt_rectfill_quint32 }, // Format_ARGB32, { blend_color_generic, qt_gradient_quint32, qt_bitmapblit_quint32, qt_alphamapblit_quint32, qt_alphargbblit_quint32, qt_rectfill_quint32 }, // Format_ARGB32_Premultiplied { blend_color_argb, qt_gradient_quint32, qt_bitmapblit_quint32, qt_alphamapblit_quint32, qt_alphargbblit_quint32, qt_rectfill_quint32 }, // Format_RGB16 { blend_color_rgb16, qt_gradient_quint16, qt_bitmapblit_quint16, qt_alphamapblit_quint16, 0, qt_rectfill_quint16 }, // Format_ARGB8565_Premultiplied { SPANFUNC_POINTER_BLENDCOLOR(qargb8565), SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, qt_rectfill_qargb8565 }, // Format_RGB666 { SPANFUNC_POINTER_BLENDCOLOR(qrgb666), SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, qt_rectfill_qrgb666 }, // Format_ARGB6666_Premultiplied { SPANFUNC_POINTER_BLENDCOLOR(qargb6666), SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, qt_rectfill_qargb6666 }, // Format_RGB555 { SPANFUNC_POINTER_BLENDCOLOR(qrgb555), SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, qt_rectfill_qrgb555 }, // Format_ARGB8555_Premultiplied { SPANFUNC_POINTER_BLENDCOLOR(qargb8555), SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, qt_rectfill_qargb8555 }, // Format_RGB888 { SPANFUNC_POINTER_BLENDCOLOR(qrgb888), SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, qt_rectfill_qrgb888 }, // Format_RGB444 { SPANFUNC_POINTER_BLENDCOLOR(qrgb444), SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, qt_rectfill_qrgb444 }, // Format_ARGB4444_Premultiplied { SPANFUNC_POINTER_BLENDCOLOR(qargb4444), SPANFUNC_POINTER(blend_src_generic, RegularSpans), 0, 0, 0, qt_rectfill_qargb4444 } }; #if defined (Q_WS_QWS) && !defined(QT_NO_RASTERCALLBACKS) DrawHelper qDrawHelperCallback[QImage::NImageFormats] = { // Format_Invalid, { 0, 0, 0, 0, 0, 0 }, // Format_Mono, { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_MonoLSB, { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_Indexed8, { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_RGB32, { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_ARGB32, { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_ARGB32_Premultiplied { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_RGB16 { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_ARGB8565_Premultiplied { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_RGB666 { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_ARGB6666_Premultiplied { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_RGB555 { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_ARGB8555_Premultiplied { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_RGB888 { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_RGB444 { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 }, // Format_ARGB4444_Premultiplied { blend_color_generic_callback, blend_src_generic, 0, 0, 0, 0 } }; #endif #if defined(Q_CC_MSVC) && !defined(_MIPS_) template inline void qt_memfill_template(DST *dest, SRC color, int count) { const DST c = qt_colorConvert(color, 0); while (count--) *dest++ = c; } #else template inline void qt_memfill_template(DST *dest, SRC color, int count) { const DST c = qt_colorConvert(color, 0); int n = (count + 7) / 8; switch (count & 0x07) { case 0: do { *dest++ = c; case 7: *dest++ = c; case 6: *dest++ = c; case 5: *dest++ = c; case 4: *dest++ = c; case 3: *dest++ = c; case 2: *dest++ = c; case 1: *dest++ = c; } while (--n > 0); } } template <> inline void qt_memfill_template(quint16 *dest, quint16 value, int count) { if (count < 3) { switch (count) { case 2: *dest++ = value; case 1: *dest = value; } return; } const int align = (quintptr)(dest) & 0x3; switch (align) { case 2: *dest++ = value; --count; } const quint32 value32 = (value << 16) | value; qt_memfill(reinterpret_cast(dest), value32, count / 2); if (count & 0x1) dest[count - 1] = value; } #endif static void qt_memfill_quint16(quint16 *dest, quint16 color, int count) { qt_memfill_template(dest, color, count); } typedef void (*qt_memfill32_func)(quint32 *dest, quint32 value, int count); typedef void (*qt_memfill16_func)(quint16 *dest, quint16 value, int count); static void qt_memfill32_setup(quint32 *dest, quint32 value, int count); static void qt_memfill16_setup(quint16 *dest, quint16 value, int count); qt_memfill32_func qt_memfill32 = qt_memfill32_setup; qt_memfill16_func qt_memfill16 = qt_memfill16_setup; enum CPUFeatures { None = 0, MMX = 0x1, MMXEXT = 0x2, MMX3DNOW = 0x4, MMX3DNOWEXT = 0x8, SSE = 0x10, SSE2 = 0x20, CMOV = 0x40, IWMMXT = 0x80 }; static uint detectCPUFeatures() { #if defined (Q_OS_WINCE) #if defined (ARM) if (IsProcessorFeaturePresent(PF_ARM_INTEL_WMMX)) return IWMMXT; #elif defined(_X86_) uint features = 0; #if defined QT_HAVE_MMX if (IsProcessorFeaturePresent(PF_MMX_INSTRUCTIONS_AVAILABLE)) features |= MMX; #endif #if defined QT_HAVE_3DNOW if (IsProcessorFeaturePresent(PF_3DNOW_INSTRUCTIONS_AVAILABLE)) features |= MMX3DNOW; #endif return features; #endif return 0; #elif defined(QT_HAVE_IWMMXT) // runtime detection only available when running as a previlegied process static const bool doIWMMXT = !qgetenv("QT_NO_IWMMXT").toInt(); return doIWMMXT ? IWMMXT : 0; #else uint features = 0; #if defined(__x86_64__) || defined(Q_OS_WIN64) features = MMX|SSE|SSE2|CMOV; #elif defined(__ia64__) features = MMX|SSE|SSE2; #elif defined(__i386__) || defined(_M_IX86) unsigned int extended_result = 0; uint result = 0; /* see p. 118 of amd64 instruction set manual Vol3 */ #if defined(Q_CC_GNU) asm ("push %%ebx\n" "pushf\n" "pop %%eax\n" "mov %%eax, %%ebx\n" "xor $0x00200000, %%eax\n" "push %%eax\n" "popf\n" "pushf\n" "pop %%eax\n" "xor %%edx, %%edx\n" "xor %%ebx, %%eax\n" "jz 1f\n" "mov $0x00000001, %%eax\n" "cpuid\n" "1:\n" "pop %%ebx\n" "mov %%edx, %0\n" : "=r" (result) : : "%eax", "%ecx", "%edx" ); asm ("push %%ebx\n" "pushf\n" "pop %%eax\n" "mov %%eax, %%ebx\n" "xor $0x00200000, %%eax\n" "push %%eax\n" "popf\n" "pushf\n" "pop %%eax\n" "xor %%edx, %%edx\n" "xor %%ebx, %%eax\n" "jz 2f\n" "mov $0x80000000, %%eax\n" "cpuid\n" "cmp $0x80000000, %%eax\n" "jbe 2f\n" "mov $0x80000001, %%eax\n" "cpuid\n" "2:\n" "pop %%ebx\n" "mov %%edx, %0\n" : "=r" (extended_result) : : "%eax", "%ecx", "%edx" ); #elif defined (Q_OS_WIN) _asm { push eax push ebx push ecx push edx pushfd pop eax mov ebx, eax xor eax, 00200000h push eax popfd pushfd pop eax mov edx, 0 xor eax, ebx jz skip mov eax, 1 cpuid mov result, edx skip: pop edx pop ecx pop ebx pop eax } _asm { push eax push ebx push ecx push edx pushfd pop eax mov ebx, eax xor eax, 00200000h push eax popfd pushfd pop eax mov edx, 0 xor eax, ebx jz skip2 mov eax, 80000000h cpuid cmp eax, 80000000h jbe skip2 mov eax, 80000001h cpuid mov extended_result, edx skip2: pop edx pop ecx pop ebx pop eax } #endif // result now contains the standard feature bits if (result & (1u << 15)) features |= CMOV; if (result & (1u << 23)) features |= MMX; if (extended_result & (1u << 22)) features |= MMXEXT; if (extended_result & (1u << 31)) features |= MMX3DNOW; if (extended_result & (1u << 30)) features |= MMX3DNOWEXT; if (result & (1u << 25)) features |= SSE; if (result & (1u << 26)) features |= SSE2; #endif // i386 if (qgetenv("QT_NO_MMX").toInt()) features ^= MMX; if (qgetenv("QT_NO_MMXEXT").toInt()) features ^= MMXEXT; if (qgetenv("QT_NO_3DNOW").toInt()) features ^= MMX3DNOW; if (qgetenv("QT_NO_3DNOWEXT").toInt()) features ^= MMX3DNOWEXT; if (qgetenv("QT_NO_SSE").toInt()) features ^= SSE; if (qgetenv("QT_NO_SSE2").toInt()) features ^= SSE2; return features; #endif } void qInitDrawhelperAsm() { static uint features = 0xffffffff; if (features != 0xffffffff) return; features = detectCPUFeatures(); qt_memfill32 = qt_memfill_template; qt_memfill16 = qt_memfill_quint16; //qt_memfill_template; CompositionFunction *functionForModeAsm = 0; CompositionFunctionSolid *functionForModeSolidAsm = 0; #ifdef QT_NO_DEBUG if (false) { #ifdef QT_HAVE_SSE2 } else if (features & SSE2) { qt_memfill32 = qt_memfill32_sse2; qt_memfill16 = qt_memfill16_sse2; qDrawHelper[QImage::Format_RGB32].bitmapBlit = qt_bitmapblit32_sse2; qDrawHelper[QImage::Format_ARGB32].bitmapBlit = qt_bitmapblit32_sse2; qDrawHelper[QImage::Format_ARGB32_Premultiplied].bitmapBlit = qt_bitmapblit32_sse2; qDrawHelper[QImage::Format_RGB16].bitmapBlit = qt_bitmapblit16_sse2; #endif #ifdef QT_HAVE_SSE } else if (features & SSE) { // qt_memfill32 = qt_memfill32_sse; qDrawHelper[QImage::Format_RGB16].bitmapBlit = qt_bitmapblit16_sse; #ifdef QT_HAVE_3DNOW if (features & MMX3DNOW) { qt_memfill32 = qt_memfill32_sse3dnow; qDrawHelper[QImage::Format_RGB16].bitmapBlit = qt_bitmapblit16_sse3dnow; } #endif #endif // SSE #if defined(QT_HAVE_MMXEXT) && defined(QT_HAVE_SSE) } else if (features & MMXEXT) { qt_memfill32 = qt_memfill32_sse; qDrawHelper[QImage::Format_RGB16].bitmapBlit = qt_bitmapblit16_sse; # ifdef QT_HAVE_3DNOW if (features & MMX3DNOW) { qt_memfill32 = qt_memfill32_sse3dnow; qDrawHelper[QImage::Format_RGB16].bitmapBlit = qt_bitmapblit16_sse3dnow; } # endif // 3DNOW #endif // MMXEXT } #ifdef QT_HAVE_MMX if (features & MMX) { functionForModeAsm = qt_functionForMode_MMX; functionForModeSolidAsm = qt_functionForModeSolid_MMX; qDrawHelper[QImage::Format_ARGB32_Premultiplied].blendColor = qt_blend_color_argb_mmx; #ifdef QT_HAVE_3DNOW if (features & MMX3DNOW) { functionForModeAsm = qt_functionForMode_MMX3DNOW; functionForModeSolidAsm = qt_functionForModeSolid_MMX3DNOW; qDrawHelper[QImage::Format_ARGB32_Premultiplied].blendColor = qt_blend_color_argb_mmx3dnow; } #endif // 3DNOW extern void qt_blend_rgb32_on_rgb32_mmx(uchar *destPixels, int dbpl, const uchar *srcPixels, int sbpl, int w, int h, int const_alpha); extern void qt_blend_argb32_on_argb32_mmx(uchar *destPixels, int dbpl, const uchar *srcPixels, int sbpl, int w, int h, int const_alpha); qBlendFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_mmx; qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_mmx; qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_mmx; qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_mmx; } #endif // MMX #ifdef QT_HAVE_SSE if (features & SSE) { functionForModeAsm = qt_functionForMode_SSE; functionForModeSolidAsm = qt_functionForModeSolid_SSE; qDrawHelper[QImage::Format_ARGB32_Premultiplied].blendColor = qt_blend_color_argb_sse; #ifdef QT_HAVE_3DNOW if (features & MMX3DNOW) { functionForModeAsm = qt_functionForMode_SSE3DNOW; functionForModeSolidAsm = qt_functionForModeSolid_SSE3DNOW; qDrawHelper[QImage::Format_ARGB32_Premultiplied].blendColor = qt_blend_color_argb_sse3dnow; } #endif // 3DNOW extern void qt_blend_rgb32_on_rgb32_sse(uchar *destPixels, int dbpl, const uchar *srcPixels, int sbpl, int w, int h, int const_alpha); extern void qt_blend_argb32_on_argb32_sse(uchar *destPixels, int dbpl, const uchar *srcPixels, int sbpl, int w, int h, int const_alpha); qBlendFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_sse; qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_sse; qBlendFunctions[QImage::Format_RGB32][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_sse; qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_sse; } #endif // SSE #ifdef QT_HAVE_IWMMXT if (features & IWMMXT) { functionForModeAsm = qt_functionForMode_IWMMXT; functionForModeSolidAsm = qt_functionForModeSolid_IWMMXT; qDrawHelper[QImage::Format_ARGB32_Premultiplied].blendColor = qt_blend_color_argb_iwmmxt; } #endif // IWMMXT #endif // QT_NO_DEBUG if (functionForModeSolidAsm) { const int destinationMode = QPainter::CompositionMode_Destination; functionForModeSolidAsm[destinationMode] = functionForModeSolid_C[destinationMode]; // use the default qdrawhelper implementation for the // extended composition modes for (int mode = 12; mode < 24; ++mode) functionForModeSolidAsm[mode] = functionForModeSolid_C[mode]; functionForModeSolid = functionForModeSolidAsm; } if (functionForModeAsm) { const int destinationMode = QPainter::CompositionMode_Destination; functionForModeAsm[destinationMode] = functionForMode_C[destinationMode]; // use the default qdrawhelper implementation for the // extended composition modes for (int mode = 12; mode < numCompositionFunctions; ++mode) functionForModeAsm[mode] = functionForMode_C[mode]; functionForMode = functionForModeAsm; } qt_build_pow_tables(); } static void qt_memfill32_setup(quint32 *dest, quint32 value, int count) { qInitDrawhelperAsm(); qt_memfill32(dest, value, count); } static void qt_memfill16_setup(quint16 *dest, quint16 value, int count) { qInitDrawhelperAsm(); qt_memfill16(dest, value, count); } #ifdef QT_QWS_DEPTH_GENERIC int qrgb::bpp = 0; int qrgb::len_red = 0; int qrgb::len_green = 0; int qrgb::len_blue = 0; int qrgb::len_alpha = 0; int qrgb::off_red = 0; int qrgb::off_green = 0; int qrgb::off_blue = 0; int qrgb::off_alpha = 0; template Q_STATIC_TEMPLATE_FUNCTION inline void qt_rectconvert_rgb(qrgb *dest, const SRC *src, int x, int y, int width, int height, int dstStride, int srcStride) { quint8 *dest8 = reinterpret_cast(dest) + y * dstStride + x * qrgb::bpp; srcStride = srcStride / sizeof(SRC) - width; dstStride -= (width * qrgb::bpp); for (int j = 0; j < height; ++j) { for (int i = 0; i < width; ++i) { const quint32 v = qt_convertToRgb(*src++); #if Q_BYTE_ORDER == Q_BIG_ENDIAN for (int j = qrgb::bpp - 1; j >= 0; --j) *dest8++ = (v >> (8 * j)) & 0xff; #else for (int j = 0; j < qrgb::bpp; ++j) *dest8++ = (v >> (8 * j)) & 0xff; #endif } dest8 += dstStride; src += srcStride; } } template <> void qt_rectconvert(qrgb *dest, const quint32 *src, int x, int y, int width, int height, int dstStride, int srcStride) { qt_rectconvert_rgb(dest, src, x, y, width, height, dstStride, srcStride); } template <> void qt_rectconvert(qrgb *dest, const quint16 *src, int x, int y, int width, int height, int dstStride, int srcStride) { qt_rectconvert_rgb(dest, src, x, y, width, height, dstStride, srcStride); } #endif // QT_QWS_DEPTH_GENERIC QT_END_NAMESPACE