diff options
Diffstat (limited to 'src/plugins/graphicssystems')
7 files changed, 95 insertions, 96 deletions
diff --git a/src/plugins/graphicssystems/meego/dithering.cpp b/src/plugins/graphicssystems/meego/dithering.cpp index 91e3337..2561c22 100644 --- a/src/plugins/graphicssystems/meego/dithering.cpp +++ b/src/plugins/graphicssystems/meego/dithering.cpp @@ -39,15 +39,22 @@ ** ****************************************************************************/ -// This is an implementation of the 32bit => 16bit Floyd-Steinberg dithering. +// Implements two dithering methods: +// +// * convertRGBA32_to_RGB565 +// +// This is implemented using Ordered Bayer Dithering. The code has been adapted +// from QX11PixmapData::fromImage. This method was originally implemented using +// Floyd-Steinberg dithering but was later changed to Ordered Dithering because +// of the better quality of the results. +// +// * convertRGBA32_to_RGBA4444 +// +// This is implemented using Floyd-Steinberg dithering. +// // The alghorithm used here is not the fastest possible but it's prolly fast enough: // uses look-up tables, integer-only arthmetics and works in one pass on two lines // at a time. It's a high-quality dithering using 1/8 diffusion precission. -// Two functions here to look at: -// -// * convertRGBA32_to_RGB565 -// * convertRGBA32_to_RGBA4444 -// // Each channel (RGBA) is diffused independently and alpha is dithered too. #include <string.h> @@ -76,113 +83,63 @@ // Converts incoming RGB32 (QImage::Format_RGB32) to RGB565. Returns the newly allocated data. unsigned short* convertRGB32_to_RGB565(const unsigned char *in, int width, int height, int stride) { + static bool thresholdMapInitialized = false; + static int thresholdMap[16][16]; + + if (!thresholdMapInitialized) { + int i; + int j; + int n; + + thresholdMap[0][0] = 0; + thresholdMap[1][0] = 2; + thresholdMap[0][1] = 3; + thresholdMap[1][1] = 1; + + for (n=2; n<16; n*=2) { + for (i=0; i<n; i++) { + for (j=0; j<n; j++) { + thresholdMap[i][j] *= 4; + thresholdMap[i+n][j] = thresholdMap[i][j] + 2; + thresholdMap[i][j+n] = thresholdMap[i][j] + 3; + thresholdMap[i+n][j+n] = thresholdMap[i][j] + 1; + } + } + } + + thresholdMapInitialized = true; + } + // Output line stride. Aligned to 4 bytes. int alignedWidth = width; if (alignedWidth % 2 > 0) alignedWidth++; // Will store output - unsigned short *out = (unsigned short *) malloc(alignedWidth * height * 2); - - // Lookup tables for the 8bit => 6bit and 8bit => 5bit conversion - unsigned char lookup_8bit_to_5bit[256]; - short lookup_8bit_to_5bit_diff[256]; - unsigned char lookup_8bit_to_6bit[256]; - short lookup_8bit_to_6bit_diff[256]; - - // Macros for the conversion using the lookup table. - #define CONVERT_8BIT_TO_5BIT(v) (lookup_8bit_to_5bit[v]) - #define DIFF_8BIT_TO_5BIT(v) (lookup_8bit_to_5bit_diff[v]) - - #define CONVERT_8BIT_TO_6BIT(v) (lookup_8bit_to_6bit[v]) - #define DIFF_8BIT_TO_6BIT(v) (lookup_8bit_to_6bit_diff[v]) - - int i; - int x, y, c; // Pixel we're processing. c is component number (0, 1, 2 for r, b, b) - short component[3]; // Stores the new components (r, g, b) for pixel produced during conversion - short diff; // The difference between the converted value and the original one. To be accumulated. - QVarLengthArray <short> accumulatorData(3 * width * 2); // Data for three acumulators for r, g, b. Each accumulator is two lines. - short *accumulator[3]; // Helper for accessing the accumulator on a per-channel basis more easily. - accumulator[0] = accumulatorData.data(); - accumulator[1] = accumulatorData.data() + width; - accumulator[2] = accumulatorData.data() + (width * 2); - - // Produce the conversion lookup tables. - for (i = 0; i < 256; i++) { - lookup_8bit_to_5bit[i] = round(i / 8.0); - - // Before bitshifts: (i * 8) - (... * 8 * 8) - lookup_8bit_to_5bit_diff[i] = (i << 3) - (lookup_8bit_to_5bit[i] << 6); - if (lookup_8bit_to_5bit[i] > 31) - lookup_8bit_to_5bit[i] -= 1; - - lookup_8bit_to_6bit[i] = round(i / 4.0); - - // Before bitshifts: (i * 8) - (... * 4 * 8) - lookup_8bit_to_6bit_diff[i] = (i << 3) - (lookup_8bit_to_6bit[i] << 5); - if (lookup_8bit_to_6bit[i] > 63) - lookup_8bit_to_6bit[i] -= 1; - } + unsigned short *out = (unsigned short *)malloc (alignedWidth * height * 2); - // Clear the accumulators - memset(accumulator[0], 0, width * 4); - memset(accumulator[1], 0, width * 4); - memset(accumulator[2], 0, width * 4); + int x; + int y; + int threshold; // For each line... for (y = 0; y < height; y++) { - // For each accumulator, move the second line (index 1) to replace the first line (index 0). - // Clear the second line (index 1) - memcpy(accumulator[0], accumulator[0] + width, width * 2); - memset(accumulator[0] + width, 0, width * 2); - - memcpy(accumulator[1], accumulator[1] + width, width * 2); - memset(accumulator[1] + width, 0, width * 2); - - memcpy(accumulator[2], accumulator[2] + width, width * 2); - memset(accumulator[2] + width, 0, width * 2); - // For each column.... for (x = 0; x < width; x++) { - // For each component (r, g, b)... - for (c = 0; c < 3; c++) { + int r = GET_RGBA_COMPONENT(in, x, y, stride, 0); + int g = GET_RGBA_COMPONENT(in, x, y, stride, 1); + int b = GET_RGBA_COMPONENT(in, x, y, stride, 2); - // Get the 8bit value from the original image - component[c] = GET_RGBA_COMPONENT(in, x, y, stride, c); - - // Add the diffusion for this pixel we stored in the accumulator. - // >> 7 because the values in accumulator are stored * 128 - if (x != 0 && x != (width - 1)) { - if (accumulator[c][x] >> 7 != 0) - component[c] += rand() % accumulator[c][x] >> 7; - } - - // Make sure we're not over the boundaries. - CLAMP_256(component[c]); - - // For green component we use 6 bits. Otherwise 5 bits. - // Store the difference from converting 8bit => 6 bit and the orig pixel. - // Convert 8bit => 6(5) bit. - if (c == 1) { - diff = DIFF_8BIT_TO_6BIT(component[c]); - component[c] = CONVERT_8BIT_TO_6BIT(component[c]); - } else { - diff = DIFF_8BIT_TO_5BIT(component[c]); - component[c] = CONVERT_8BIT_TO_5BIT(component[c]); - } + threshold = thresholdMap[x%16][y%16]; - // Distribute the difference according to the matrix in the - // accumulation bufffer. - ACCUMULATE(accumulator[c], x + 1, 0, width, diff * 3); - ACCUMULATE(accumulator[c], x - 1, 1, width, diff * 5); - ACCUMULATE(accumulator[c], x, 1, width, diff * 5); - ACCUMULATE(accumulator[c], x + 1, 1, width, diff * 3); - } + if (r <= (255-(1<<3)) && ((r<<5) & 255) > threshold) r += (1<<3); + if (g <= (255-(1<<2)) && ((g<<6) & 255) > threshold) g += (1<<2); + if (b <= (255-(1<<3)) && ((b<<5) & 255) > threshold) b += (1<<3); // Write the newly produced pixel - PUT_565(out, x, y, alignedWidth, component[2], component[1], component[0]); + PUT_565(out, x, y, alignedWidth, ((b >> 3) & 0x1f), ((g >> 2) & 0x3f), ((r >> 3) & 0x1f)); } } diff --git a/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp b/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp index a70d232..13eab7f 100644 --- a/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp +++ b/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp @@ -171,7 +171,7 @@ QPixmapData *QMeeGoGraphicsSystem::pixmapDataFromEGLSharedImage(Qt::HANDLE handl return QMeeGoGraphicsSystem::wrapPixmapData(pmd); } else { QRasterPixmapData *pmd = new QRasterPixmapData(QPixmapData::PixmapType); - pmd->fromImage(softImage, Qt::NoOpaqueDetection); + pmd->fromImage(softImage, Qt::NoFormatConversion); // Make sure that the image was not converted in any way if (pmd->buffer()->data_ptr()->data != @@ -335,3 +335,8 @@ void qt_meego_destroy_fence_sync(void* fs) { return QMeeGoGraphicsSystem::destroyFenceSync(fs); } + +void qt_meego_invalidate_live_surfaces(void) +{ + return QMeeGoLivePixmapData::invalidateSurfaces(); +} diff --git a/src/plugins/graphicssystems/meego/qmeegographicssystem.h b/src/plugins/graphicssystems/meego/qmeegographicssystem.h index 323ce1f..27a4e7a 100644 --- a/src/plugins/graphicssystems/meego/qmeegographicssystem.h +++ b/src/plugins/graphicssystems/meego/qmeegographicssystem.h @@ -103,6 +103,7 @@ extern "C" { Q_DECL_EXPORT Qt::HANDLE qt_meego_live_texture_get_handle(QPixmap *pixmap); Q_DECL_EXPORT void* qt_meego_create_fence_sync(void); Q_DECL_EXPORT void qt_meego_destroy_fence_sync(void* fs); + Q_DECL_EXPORT void qt_meego_invalidate_live_surfaces(void); } #endif diff --git a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp index e4f1900..2a2a098 100644 --- a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp +++ b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.cpp @@ -49,6 +49,8 @@ #include <private/qpixmap_x11_p.h> #include <stdio.h> +static QMeeGoLivePixmapDataList all_live_pixmaps; + static EGLint lock_attribs[] = { EGL_MAP_PRESERVE_PIXELS_KHR, EGL_TRUE, EGL_LOCK_USAGE_HINT_KHR, EGL_READ_SURFACE_BIT_KHR | EGL_WRITE_SURFACE_BIT_KHR, @@ -118,21 +120,29 @@ QMeeGoLivePixmapData::QMeeGoLivePixmapData(int w, int h, QImage::Format format) backingX11Pixmap = new QPixmap(pmd); initializeThroughEGLImage(); + + pos = all_live_pixmaps.insert(all_live_pixmaps.begin(), this); } QMeeGoLivePixmapData::QMeeGoLivePixmapData(Qt::HANDLE h) : QGLPixmapData(QPixmapData::PixmapType) { backingX11Pixmap = new QPixmap(QPixmap::fromX11Pixmap(h)); initializeThroughEGLImage(); + + pos = all_live_pixmaps.insert(all_live_pixmaps.begin(), this); } QMeeGoLivePixmapData::~QMeeGoLivePixmapData() { delete backingX11Pixmap; + all_live_pixmaps.erase(pos); } void QMeeGoLivePixmapData::initializeThroughEGLImage() { + if (texture()->id != 0) + return; + QGLShareContextScope ctx(qt_gl_share_widget()->context()); QMeeGoExtensions::ensureInitialized(); @@ -245,6 +255,8 @@ bool QMeeGoLivePixmapData::scroll(int dx, int dy, const QRect &rect) EGLSurface QMeeGoLivePixmapData::getSurfaceForBackingPixmap() { + initializeThroughEGLImage(); + // This code is a crative remix of the stuff that can be found in the // Qt's TFP implementation in /src/opengl/qgl_x11egl.cpp ::bindiTextureFromNativePixmap QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(backingX11Pixmap->data_ptr().data()); @@ -290,3 +302,12 @@ void QMeeGoLivePixmapData::destroySurfaceForPixmapData(QPixmapData* pmd) pixmapData->gl_surface = 0; } } + +void QMeeGoLivePixmapData::invalidateSurfaces() +{ + foreach (QMeeGoLivePixmapData *data, all_live_pixmaps) { + QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(data->backingX11Pixmap->data_ptr().data()); + *data->texture() = QGLTexture(); + pixmapData->gl_surface = 0; + } +} diff --git a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h index 484028e..616b33c 100644 --- a/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h +++ b/src/plugins/graphicssystems/meego/qmeegolivepixmapdata.h @@ -42,9 +42,13 @@ #ifndef MLIVEPIXMAPDATA_H #define MLIVEPIXMAPDATA_H +#include <QLinkedList> #include <private/qpixmapdata_gl_p.h> #include "qmeegoextensions.h" +class QMeeGoLivePixmapData; +typedef QLinkedList<QMeeGoLivePixmapData *> QMeeGoLivePixmapDataList; + class QMeeGoLivePixmapData : public QGLPixmapData { public: @@ -66,6 +70,9 @@ public: QPixmap *backingX11Pixmap; QImage lockedImage; + QMeeGoLivePixmapDataList::Iterator pos; + + static void invalidateSurfaces(); }; #endif diff --git a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp index 0c107b5..1da58e1 100644 --- a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp +++ b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg.cpp @@ -42,6 +42,7 @@ #include "qgraphicssystem_vg_p.h" #include <QtOpenVG/private/qpixmapdata_vg_p.h> #include <QtOpenVG/private/qwindowsurface_vg_p.h> +#include <QtOpenVG/private/qvgimagepool_p.h> #if defined(Q_OS_SYMBIAN) && !defined(Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE) #include <QtGui/private/qwidget_p.h> #endif @@ -77,4 +78,9 @@ QWindowSurface *QVGGraphicsSystem::createWindowSurface(QWidget *widget) const return new QVGWindowSurface(widget); } +void QVGGraphicsSystem::releaseCachedResources() +{ + QVGImagePool::instance()->hibernate(); +} + QT_END_NAMESPACE diff --git a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg_p.h b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg_p.h index d1bce28..9c9b3e2 100644 --- a/src/plugins/graphicssystems/openvg/qgraphicssystem_vg_p.h +++ b/src/plugins/graphicssystems/openvg/qgraphicssystem_vg_p.h @@ -64,6 +64,8 @@ public: QPixmapData *createPixmapData(QPixmapData::PixelType type) const; QWindowSurface *createWindowSurface(QWidget *widget) const; + + void releaseCachedResources(); }; QT_END_NAMESPACE |