Changeset 651 for trunk/src/opengl/qpaintengine_opengl.cpp

Timestamp:

Mar 8, 2010, 12:52:58 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.2 sources.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/opengl/qpaintengine_opengl.cpp (modified) (13 diffs)

trunk/src/opengl/qpaintengine_opengl.cpp

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
@@ -109 +109 @@
 #endif
 
+#ifdef Q_WS_X11
+static bool qt_nvidiaFboNeedsFinish = false;
+#endif
+
 static inline void qt_glColor4ubv(unsigned char *col)
 {
@@ -424 +428 @@
 #ifdef Q_WS_X11
     // workaround for bug in nvidia driver versions 9x.xx
-    if (QGLExtensions::nvidiaFboNeedsFinish)
+    if (qt_nvidiaFboNeedsFinish)
         glFinish();
 #endif
@@ -478 +482 @@
 bool QGLOffscreen::isSupported()
 {
-    return (QGLExtensions::glExtensions & QGLExtensions::FramebufferObject); // for fbo
+    return (QGLExtensions::glExtensions() & QGLExtensions::FramebufferObject); // for fbo
 }
 
@@ -1267 +1271 @@
             d->mv_matrix[i][j] = (i == j ? qreal(1) : qreal(0));
 
-    bool has_frag_program = (QGLExtensions::glExtensions & QGLExtensions::FragmentProgram)
+    bool has_frag_program = (QGLExtensions::glExtensions() & QGLExtensions::FragmentProgram)
                             && (pdev->devType() != QInternal::Pixmap);
 
@@ -1280 +1284 @@
 
     d->use_stencil_method = d->device->format().stencil()
-                            && (QGLExtensions::glExtensions & QGLExtensions::StencilWrap);
+                            && (QGLExtensions::glExtensions() & QGLExtensions::StencilWrap);
     if (d->device->format().directRendering()
-        && (d->use_stencil_method && QGLExtensions::glExtensions & QGLExtensions::StencilTwoSide))
+        && (d->use_stencil_method && QGLExtensions::glExtensions() & QGLExtensions::StencilTwoSide))
         d->has_stencil_face_ext = qt_resolve_stencil_face_extension(ctx);
+
+#ifdef Q_WS_X11
+    static bool nvidia_workaround_needs_init = true;
+    if (nvidia_workaround_needs_init) {
+        // nvidia 9x.xx unix drivers contain a bug which requires us to
+        // call glFinish before releasing an fbo to avoid painting
+        // artifacts
+        const QByteArray versionString(reinterpret_cast<const char*>(glGetString(GL_VERSION)));
+        const int pos = versionString.indexOf("NVIDIA");
+        if (pos >= 0) {
+            const float nvidiaDriverVersion = versionString.mid(pos + strlen("NVIDIA")).toFloat();
+            qt_nvidiaFboNeedsFinish = nvidiaDriverVersion >= 90.0 && nvidiaDriverVersion < 100.0;
+        }
+        nvidia_workaround_needs_init = false;
+    }
+#endif
 
 #ifndef QT_OPENGL_ES
@@ -1334 +1354 @@
         glDisableClientState(GL_VERTEX_ARRAY);
 
-        if (QGLExtensions::glExtensions & QGLExtensions::SampleBuffers)
+        if (QGLExtensions::glExtensions() & QGLExtensions::SampleBuffers)
             glDisable(GL_MULTISAMPLE);
         glDisable(GL_TEXTURE_2D);
-        if (QGLExtensions::glExtensions & QGLExtensions::TextureRectangle)
+        if (QGLExtensions::glExtensions() & QGLExtensions::TextureRectangle)
             glDisable(GL_TEXTURE_RECTANGLE_NV);
         glDisable(GL_STENCIL_TEST);
@@ -1535 +1555 @@
     Q_UNUSED(brush);
 #else
-    bool has_mirrored_repeat = QGLExtensions::glExtensions & QGLExtensions::MirroredRepeat;
+    bool has_mirrored_repeat = QGLExtensions::glExtensions() & QGLExtensions::MirroredRepeat;
     Qt::BrushStyle style = brush.style();
 
@@ -2099 +2119 @@
     return !(style == Qt::SolidPattern
              || (style == Qt::LinearGradientPattern
-                 && (QGLExtensions::glExtensions & QGLExtensions::MirroredRepeat)));
+                 && (QGLExtensions::glExtensions() & QGLExtensions::MirroredRepeat)));
 }
 
@@ -2421 +2441 @@
         } else {
             d->high_quality_antialiasing = false;
-            if (QGLExtensions::glExtensions & QGLExtensions::SampleBuffers)
+            if (QGLExtensions::glExtensions() & QGLExtensions::SampleBuffers)
                 glEnable(GL_MULTISAMPLE);
         }
     } else {
         d->high_quality_antialiasing = false;
-        if (QGLExtensions::glExtensions & QGLExtensions::SampleBuffers)
+        if (QGLExtensions::glExtensions() & QGLExtensions::SampleBuffers)
             glDisable(GL_MULTISAMPLE);
     }
@@ -2436 +2456 @@
             DEBUG_ONCE_STR("Unable to initialize offscreen, disabling high quality antialiasing");
             d->high_quality_antialiasing = false;
-            if (QGLExtensions::glExtensions & QGLExtensions::SampleBuffers)
+            if (QGLExtensions::glExtensions() & QGLExtensions::SampleBuffers)
                 glEnable(GL_MULTISAMPLE);
         }
@@ -2443 +2463 @@
     d->has_antialiasing = d->high_quality_antialiasing
                           || ((hints & QPainter::Antialiasing)
-                              && (QGLExtensions::glExtensions & QGLExtensions::SampleBuffers));
+                              && (QGLExtensions::glExtensions() & QGLExtensions::SampleBuffers));
 }
 
@@ -4932 +4952 @@
     glEnableClientState(GL_VERTEX_ARRAY);
     glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-    bool antialias = !(ti.fontEngine->fontDef.styleStrategy & QFont::NoAntialias);
+    bool antialias = !(ti.fontEngine->fontDef.styleStrategy & QFont::NoAntialias)
+                   && (d->matrix.type() > QTransform::TxTranslate);
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, antialias ? GL_LINEAR : GL_NEAREST);
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, antialias ? GL_LINEAR : GL_NEAREST);