Changeset 769 for trunk/src/opengl/gl2paintengineex

Timestamp:

Aug 2, 2010, 9:27:30 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.3 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/opengl/gl2paintengineex/qglengineshadermanager.cpp (modified) (2 diffs)
• src/opengl/gl2paintengineex/qglengineshadersource_p.h (modified) (1 diff)
• src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp (modified) (5 diffs)
• src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp (modified) (2 diffs)
• src/opengl/gl2paintengineex/qtriangulatingstroker.cpp (modified) (3 diffs)

trunk/src/opengl/gl2paintengineex/qglengineshadermanager.cpp

@@ -266 +266 @@
     do {
         QByteArray source;
+        // Insert the custom stage before the srcPixel shader to work around an ATI driver bug
+        // where you cannot forward declare a function that takes a sampler as argument.
+        if (prog.srcPixelFragShader == CustomImageSrcFragmentShader)
+            source.append(prog.customStageSource);
         source.append(qShaderSnippets[prog.mainFragShader]);
         source.append(qShaderSnippets[prog.srcPixelFragShader]);
-        if (prog.srcPixelFragShader == CustomImageSrcFragmentShader)
-            source.append(prog.customStageSource);
         if (prog.compositionFragShader)
             source.append(qShaderSnippets[prog.compositionFragShader]);
@@ -766 +768 @@
     QGLContextPrivate* ctx_d = ctx->d_func();
     ctx_d->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true);
-    ctx_d->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, currentShaderProg->useTextureCoords);
-    ctx_d->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, currentShaderProg->useOpacityAttribute);
+    ctx_d->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, currentShaderProg && currentShaderProg->useTextureCoords);
+    ctx_d->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, currentShaderProg && currentShaderProg->useOpacityAttribute);
 
     shaderProgNeedsChanging = false;

trunk/src/opengl/gl2paintengineex/qglengineshadersource_p.h

@@ -332 +332 @@
     uniform   lowp    sampler2D imageTexture; \n\
     lowp vec4 srcPixel() \n\
-    { \n\
-        return texture2D(imageTexture, textureCoords); \n\
-    }\n";
+    { \n"
+#ifdef QT_OPENGL_ES_2
+        // work-around for driver bug
+        "return 1.0 * texture2D(imageTexture, textureCoords); \n"
+#else
+        "return texture2D(imageTexture, textureCoords); \n"
+#endif
+    "}\n";
 
 static const char* const qglslCustomSrcFragmentShader = "\n\
     varying   highp   vec2      textureCoords; \n\
     uniform   lowp    sampler2D imageTexture; \n\
-    lowp vec4 customShader(lowp sampler2D texture, highp vec2 coords); \n\
     lowp vec4 srcPixel() \n\
     { \n\

trunk/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp

@@ -90 +90 @@
 
 //#define QT_GL_NO_SCISSOR_TEST
+#if defined(Q_WS_WIN)
+extern Q_GUI_EXPORT bool qt_cleartype_enabled;
+#endif
 
 extern QImage qt_imageForBrush(int brushStyle, bool invert);
@@ -182 +185 @@
 
         glActiveTexture(GL_TEXTURE0 + QT_BRUSH_TEXTURE_UNIT);
-        ctx->d_func()->bindTexture(texImage, GL_TEXTURE_2D, GL_RGBA, true, QGLContext::InternalBindOption);
+        ctx->d_func()->bindTexture(texImage, GL_TEXTURE_2D, GL_RGBA, QGLContext::InternalBindOption);
         updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, q->state()->renderHints & QPainter::SmoothPixmapTransform);
     }
@@ -1232 +1235 @@
                                             : d->glyphCacheType;
 
-    if (txtype > QTransform::TxTranslate)
-        glyphType = QFontEngineGlyphCache::Raster_A8;
-
-    if (glyphType == QFontEngineGlyphCache::Raster_RGBMask
-        && state()->composition_mode != QPainter::CompositionMode_Source
-        && state()->composition_mode != QPainter::CompositionMode_SourceOver)
-    {
-        drawCached = false;
+
+    if (glyphType == QFontEngineGlyphCache::Raster_RGBMask) {
+        if (d->device->alphaRequested() || txtype > QTransform::TxTranslate
+            || (state()->composition_mode != QPainter::CompositionMode_Source
+            && state()->composition_mode != QPainter::CompositionMode_SourceOver))
+        {
+            glyphType = QFontEngineGlyphCache::Raster_A8;
+        }
     }
 
@@ -1556 +1559 @@
 #if !defined(QT_OPENGL_ES_2)
 #if defined(Q_WS_WIN)
-    extern Q_GUI_EXPORT bool qt_cleartype_enabled;
     if (qt_cleartype_enabled)
 #endif
@@ -1596 +1598 @@
     delete d->shaderManager;
     d->shaderManager = 0;
+    d->currentBrush = QBrush();
 
 #ifdef QT_OPENGL_CACHE_AS_VBOS

trunk/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp

@@ -42 +42 @@
 #include "qtextureglyphcache_gl_p.h"
 #include "qpaintengineex_opengl2_p.h"
+
+QT_BEGIN_NAMESPACE
 
 #ifdef Q_WS_WIN
@@ -244 +246 @@
 #endif
 }
+
+QT_END_NAMESPACE

trunk/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp

@@ -145 +145 @@
 
     const qreal *endPts = pts + (count<<1);
-    const qreal *startPts;
+    const qreal *startPts = 0;
 
     Qt::PenCapStyle cap = m_cap_style;
 
     if (!types) {
+        // skip duplicate points
+        while((pts + 2) < endPts && pts[0] == pts[2] && pts[1] == pts[3])
+            pts += 2;
+        if ((pts + 2) == endPts)
+            return;
+
         startPts = pts;
 
@@ -162 +168 @@
         pts += 2;
         while (pts < endPts) {
-            join(pts);
-            lineTo(pts);
+            if (m_cx != pts[0] || m_cy != pts[1]) {
+                join(pts);
+                lineTo(pts);
+            }
             pts += 2;
         }
@@ -170 +178 @@
 
     } else {
-        bool endsAtStart;
+        bool endsAtStart = false;
         while (pts < endPts) {
             switch (*types) {