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-rw-r--r--src/gui/painting/qdrawhelper.cpp397
1 files changed, 258 insertions, 139 deletions
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index be4275c..5e1509d 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -46,7 +46,6 @@
#include <private/qdrawhelper_armv6_p.h>
#include <private/qdrawhelper_neon_p.h>
#include <private/qmath_p.h>
-#include <private/qsimd_p.h>
#include <qmath.h>
QT_BEGIN_NAMESPACE
@@ -656,6 +655,46 @@ const uint * QT_FASTCALL fetchTransformed(uint *buffer, const Operator *, const
return buffer;
}
+/** \internal
+ interpolate 4 argb pixels with the distx and disty factor.
+ distx and disty bust be between 0 and 16
+ */
+static inline uint interpolate_4_pixels_16(uint tl, uint tr, uint bl, uint br, int distx, int disty, int idistx, int idisty)
+{
+ uint tlrb = ((tl & 0x00ff00ff) * idistx * idisty);
+ uint tlag = (((tl & 0xff00ff00) >> 8) * idistx * idisty);
+ uint trrb = ((tr & 0x00ff00ff) * distx * idisty);
+ uint trag = (((tr & 0xff00ff00) >> 8) * distx * idisty);
+ uint blrb = ((bl & 0x00ff00ff) * idistx * disty);
+ uint blag = (((bl & 0xff00ff00) >> 8) * idistx * disty);
+ uint brrb = ((br & 0x00ff00ff) * distx * disty);
+ uint brag = (((br & 0xff00ff00) >> 8) * distx * disty);
+ return (((tlrb + trrb + blrb + brrb) >> 8) & 0x00ff00ff) | ((tlag + trag + blag + brag) & 0xff00ff00);
+}
+
+
+template<TextureBlendType blendType>
+Q_STATIC_TEMPLATE_FUNCTION inline void fetchTransformedBilinear_pixelBounds(int max, int l1, int l2, int &v1, int &v2)
+{
+ if (blendType == BlendTransformedBilinearTiled) {
+ v1 %= max;
+ if (v1 < 0) v1 += max;
+ v2 = v1 + 1;
+ v2 %= max;
+ } else {
+ if (v1 < l1) {
+ v2 = v1 = l1;
+ } else if (v1 >= l2 - 1) {
+ v2 = v1 = l2 - 1;
+ } else {
+ v2 = v1 + 1;
+ }
+ }
+
+ Q_ASSERT(v1 >= 0 && v1 < max);
+ Q_ASSERT(v2 >= 0 && v2 < max);
+}
+
template<TextureBlendType blendType, QImage::Format format> /* blendType = BlendTransformedBilinear or BlendTransformedBilinearTiled */
Q_STATIC_TEMPLATE_FUNCTION
const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator *, const QSpanData *data,
@@ -696,64 +735,230 @@ const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator *
fx -= half_point;
fy -= half_point;
- while (b < end) {
- int x1 = (fx >> 16);
- int x2;
+
+ if (fdy == 0) { //simple scale, no rotation
int y1 = (fy >> 16);
int y2;
+ fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
+ const uchar *s1 = data->texture.scanLine(y1);
+ const uchar *s2 = data->texture.scanLine(y2);
- if (blendType == BlendTransformedBilinearTiled) {
- x1 %= image_width;
- if (x1 < 0) x1 += image_width;
- x2 = x1 + 1;
- x2 %= image_width;
-
- y1 %= image_height;
- if (y1 < 0) y1 += image_height;
- y2 = y1 + 1;
- y2 %= image_height;
- } else {
- if (x1 < image_x1) {
- x2 = x1 = image_x1;
- } else if (x1 >= image_x2 - 1) {
- x2 = x1 = image_x2 - 1;
+ if (fdx <= fixed_scale && fdx > 0) { // scale up on X
+ int disty = (fy & 0x0000ffff) >> 8;
+ int idisty = 256 - disty;
+ int x = fx >> 16;
+
+ // The idea is first to do the interpolation between the row s1 and the row s2
+ // into an intermediate buffer, then we interpolate between two pixel of this buffer.
+
+ // intermediate_buffer[0] is a buffer of red-blue component of the pixel, in the form 0x00RR00BB
+ // intermediate_buffer[1] is the alpha-green component of the pixel, in the form 0x00AA00GG
+ quint32 intermediate_buffer[2][buffer_size + 2];
+ // count is the size used in the intermediate_buffer.
+ int count = qCeil(length * data->m11) + 2; //+1 for the last pixel to interpolate with, and +1 for rounding errors.
+ Q_ASSERT(count <= buffer_size + 2); //length is supposed to be <= buffer_size and data->m11 < 1 in this case
+ int f = 0;
+ int lim = count;
+ if (blendType == BlendTransformedBilinearTiled) {
+ x %= image_width;
+ if (x < 0) x += image_width;
} else {
- x2 = x1 + 1;
+ lim = qMin(count, image_x2-x);
+ if (x < image_x1) {
+ Q_ASSERT(x < image_x2);
+ uint t = fetch(s1, image_x1, data->texture.colorTable);
+ uint b = fetch(s2, image_x1, data->texture.colorTable);
+ quint32 rb = (((t & 0xff00ff) * idisty + (b & 0xff00ff) * disty) >> 8) & 0xff00ff;
+ quint32 ag = ((((t>>8) & 0xff00ff) * idisty + ((b>>8) & 0xff00ff) * disty) >> 8) & 0xff00ff;
+ do {
+ intermediate_buffer[0][f] = rb;
+ intermediate_buffer[1][f] = ag;
+ f++;
+ x++;
+ } while (x < image_x1 && f < lim);
+ }
}
- if (y1 < image_y1) {
- y2 = y1 = image_y1;
- } else if (y1 >= image_y2 - 1) {
- y2 = y1 = image_y2 - 1;
- } else {
- y2 = y1 + 1;
+
+#if defined(QT_ALWAYS_HAVE_SSE2)
+ if (blendType != BlendTransformedBilinearTiled &&
+ (format == QImage::Format_ARGB32_Premultiplied || format == QImage::Format_RGB32)) {
+
+ const __m128i disty_ = _mm_set1_epi16(disty);
+ const __m128i idisty_ = _mm_set1_epi16(idisty);
+ const __m128i colorMask = _mm_set1_epi32(0x00ff00ff);
+
+ lim -= 3;
+ for (; f < lim; x += 4, f += 4) {
+ // Load 4 pixels from s1, and split the alpha-green and red-blue component
+ __m128i top = _mm_loadu_si128((__m128i*)((const uint *)(s1)+x));
+ __m128i topAG = _mm_srli_epi16(top, 8);
+ __m128i topRB = _mm_and_si128(top, colorMask);
+ // Multiplies each colour component by idisty
+ topAG = _mm_mullo_epi16 (topAG, idisty_);
+ topRB = _mm_mullo_epi16 (topRB, idisty_);
+
+ // Same for the s2 vector
+ __m128i bottom = _mm_loadu_si128((__m128i*)((const uint *)(s2)+x));
+ __m128i bottomAG = _mm_srli_epi16(bottom, 8);
+ __m128i bottomRB = _mm_and_si128(bottom, colorMask);
+ bottomAG = _mm_mullo_epi16 (bottomAG, disty_);
+ bottomRB = _mm_mullo_epi16 (bottomRB, disty_);
+
+ // Add the values, and shift to only keep 8 significant bits per colors
+ __m128i rAG =_mm_add_epi16(topAG, bottomAG);
+ rAG = _mm_srli_epi16(rAG, 8);
+ _mm_storeu_si128((__m128i*)(&intermediate_buffer[1][f]), rAG);
+ __m128i rRB =_mm_add_epi16(topRB, bottomRB);
+ rRB = _mm_srli_epi16(rRB, 8);
+ _mm_storeu_si128((__m128i*)(&intermediate_buffer[0][f]), rRB);
+ }
+ }
+#endif
+ for (; f < count; f++) { // Same as above but without sse2
+ if (blendType == BlendTransformedBilinearTiled) {
+ if (x >= image_width) x -= image_width;
+ } else {
+ x = qMin(x, image_x2 - 1);
+ }
+
+ uint t = fetch(s1, x, data->texture.colorTable);
+ uint b = fetch(s2, x, data->texture.colorTable);
+
+ intermediate_buffer[0][f] = (((t & 0xff00ff) * idisty + (b & 0xff00ff) * disty) >> 8) & 0xff00ff;
+ intermediate_buffer[1][f] = ((((t>>8) & 0xff00ff) * idisty + ((b>>8) & 0xff00ff) * disty) >> 8) & 0xff00ff;
+ x++;
+ }
+ // Now interpolate the values from the intermediate_buffer to get the final result.
+ fx &= fixed_scale - 1;
+ Q_ASSERT((fx >> 16) == 0);
+ while (b < end) {
+ register int x1 = (fx >> 16);
+ register int x2 = x1 + 1;
+ Q_ASSERT(x1 >= 0);
+ Q_ASSERT(x2 < count);
+
+ register int distx = (fx & 0x0000ffff) >> 8;
+ register int idistx = 256 - distx;
+ int rb = ((intermediate_buffer[0][x1] * idistx + intermediate_buffer[0][x2] * distx) >> 8) & 0xff00ff;
+ int ag = (intermediate_buffer[1][x1] * idistx + intermediate_buffer[1][x2] * distx) & 0xff00ff00;
+ *b = rb | ag;
+ b++;
+ fx += fdx;
+ }
+ } else if ((fdx < 0 && fdx > -(fixed_scale / 8)) || fabs(data->m22) < (1./8.)) { // scale up more than 8x
+ int y1 = (fy >> 16);
+ int y2;
+ fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
+ const uchar *s1 = data->texture.scanLine(y1);
+ const uchar *s2 = data->texture.scanLine(y2);
+ int disty = (fy & 0x0000ffff) >> 8;
+ int idisty = 256 - disty;
+ while (b < end) {
+ int x1 = (fx >> 16);
+ int x2;
+ fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+ 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);
+
+ int distx = (fx & 0x0000ffff) >> 8;
+ int idistx = 256 - distx;
+
+ 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;
+ ++b;
+ }
+ } else { //scale down
+ int y1 = (fy >> 16);
+ int y2;
+ fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
+ const uchar *s1 = data->texture.scanLine(y1);
+ const uchar *s2 = data->texture.scanLine(y2);
+ int disty = (fy & 0x0000ffff) >> 12;
+ int idisty = 16 - disty;
+ while (b < end) {
+ int x1 = (fx >> 16);
+ int x2;
+ fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+ 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);
+ int distx = (fx & 0x0000ffff) >> 12;
+ int idistx = 16 - distx;
+ *b = interpolate_4_pixels_16(tl, tr, bl, br, distx, disty, idistx, idisty);
+ fx += fdx;
+ ++b;
}
}
+ } else { //rotation
+ if (fabs(data->m11) > 8 || fabs(data->m22) > 8) {
+ //if we are zooming more than 8 times, we use 8bit precision for the position.
+ while (b < end) {
+ int x1 = (fx >> 16);
+ int x2;
+ int y1 = (fy >> 16);
+ int y2;
- 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);
+ fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+ fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
- const uchar *s1 = data->texture.scanLine(y1);
- const uchar *s2 = data->texture.scanLine(y2);
+ 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 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);
- int distx = (fx & 0x0000ffff) >> 8;
- int disty = (fy & 0x0000ffff) >> 8;
- int idistx = 256 - distx;
- int idisty = 256 - disty;
+ int distx = (fx & 0x0000ffff) >> 8;
+ int disty = (fy & 0x0000ffff) >> 8;
+ int idistx = 256 - distx;
+ int idisty = 256 - disty;
- 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);
+ 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;
+ fx += fdx;
+ fy += fdy;
+ ++b;
+ }
+ } else {
+ //we are zooming less than 8x, use 4bit precision
+ while (b < end) {
+ int x1 = (fx >> 16);
+ int x2;
+ int y1 = (fy >> 16);
+ int y2;
+
+ fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+ fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
+
+ 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);
+
+ int distx = (fx & 0x0000ffff) >> 12;
+ int disty = (fy & 0x0000ffff) >> 12;
+ int idistx = 16 - distx;
+ int idisty = 16 - disty;
+
+ *b = interpolate_4_pixels_16(tl, tr, bl, br, distx, disty, idistx, idisty);
+
+ fx += fdx;
+ fy += fdy;
+ ++b;
+ }
+ }
}
} else {
const qreal fdx = data->m11;
@@ -779,37 +984,8 @@ const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator *
int idistx = 256 - distx;
int idisty = 256 - disty;
- if (blendType == BlendTransformedBilinearTiled) {
- x1 %= image_width;
- if (x1 < 0) x1 += image_width;
- x2 = x1 + 1;
- x2 %= image_width;
-
- y1 %= image_height;
- if (y1 < 0) y1 += image_height;
- y2 = y1 + 1;
- y2 %= image_height;
- } else {
- if (x1 < 0) {
- x2 = x1 = 0;
- } else if (x1 >= image_width - 1) {
- x2 = x1 = image_width - 1;
- } else {
- x2 = x1 + 1;
- }
- if (y1 < 0) {
- y2 = y1 = 0;
- } else if (y1 >= image_height - 1) {
- y2 = y1 = image_height - 1;
- } else {
- y2 = y1 + 1;
- }
- }
-
- 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);
+ fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+ fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
const uchar *s1 = data->texture.scanLine(y1);
const uchar *s2 = data->texture.scanLine(y2);
@@ -5212,37 +5388,8 @@ Q_STATIC_TEMPLATE_FUNCTION void blend_transformed_bilinear_argb(int count, const
int y1 = (y >> 16);
int y2;
- if (blendType == BlendTransformedBilinearTiled) {
- x1 %= image_width;
- if (x1 < 0) x1 += image_width;
- x2 = x1 + 1;
- x2 %= image_width;
-
- y1 %= image_height;
- if (y1 < 0) y1 += image_height;
- y2 = y1 + 1;
- 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 {
- if (x1 < image_x1) {
- x2 = x1 = image_x1;
- } else if (x1 >= image_x2 - 1) {
- x2 = x1 = image_x2 - 1;
- } else {
- x2 = x1 + 1;
- }
- if (y1 < image_y1) {
- y2 = y1 = image_y1;
- } else if (y1 >= image_y2 - 1) {
- y2 = y1 = image_y2 - 1;
- } else {
- y2 = y1 + 1;
- }
- }
+ fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+ fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
int y1_offset = y1 * scanline_offset;
int y2_offset = y2 * scanline_offset;
@@ -5322,37 +5469,8 @@ Q_STATIC_TEMPLATE_FUNCTION void blend_transformed_bilinear_argb(int count, const
int idistx = 256 - distx;
int idisty = 256 - disty;
- if (blendType == BlendTransformedBilinearTiled) {
- x1 %= image_width;
- if (x1 < 0) x1 += image_width;
- x2 = x1 + 1;
- x2 %= image_width;
-
- y1 %= image_height;
- if (y1 < 0) y1 += image_height;
- y2 = y1 + 1;
- 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 {
- if (x1 < image_x1) {
- x2 = x1 = image_x1;
- } else if (x1 >= image_x2 - 1) {
- x2 = x1 = image_x2 - 1;
- } else {
- x2 = x1 + 1;
- }
- if (y1 < image_y1) {
- y2 = y1 = image_y1;
- } else if (y1 >= image_y2 - 1) {
- y2 = y1 = image_y2 - 1;
- } else {
- y2 = y1 + 1;
- }
- }
+ fetchTransformedBilinear_pixelBounds<blendType>(image_width, image_x1, image_x2, x1, x2);
+ fetchTransformedBilinear_pixelBounds<blendType>(image_height, image_y1, image_y2, y1, y2);
int y1_offset = y1 * scanline_offset;
int y2_offset = y2 * scanline_offset;
@@ -7896,6 +8014,7 @@ void qInitDrawhelperAsm()
qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_argb32_neon;
qBlendFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_blend_argb32_on_rgb16_neon;
qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB16] = qt_blend_rgb16_on_argb32_neon;
+ qBlendFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_blend_rgb16_on_rgb16_neon;
qScaleFunctions[QImage::Format_RGB16][QImage::Format_ARGB32_Premultiplied] = qt_scale_image_argb32_on_rgb16_neon;
qScaleFunctions[QImage::Format_RGB16][QImage::Format_RGB16] = qt_scale_image_rgb16_on_rgb16_neon;
generated by cgit v0.12 at 2024-12-27 07:55:36 (GMT)