Merge branch '4.7' of git@scm.dev.nokia.troll.no:qt/qt-s60-public into 4.7

4 files changed, 14 insertions, 4 deletions

diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index 9e69816..943a195 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -5262,6 +5262,8 @@ QGLExtensions::Extensions QGLExtensions::currentContextExtensions()
         glExtensions |= FragmentProgram;
     if (extensions.match("GL_ARB_fragment_shader"))
         glExtensions |= FragmentShader;
+    if (extensions.match("GL_ARB_ES2_compatibility"))
+        glExtensions |= ES2Compatibility;
     if (extensions.match("GL_ARB_texture_mirrored_repeat"))
         glExtensions |= MirroredRepeat;
     if (extensions.match("GL_EXT_framebuffer_object"))
@@ -5282,6 +5284,7 @@ QGLExtensions::Extensions QGLExtensions::currentContextExtensions()
     glExtensions |= FramebufferObject;
     glExtensions |= GenerateMipmap;
     glExtensions |= FragmentShader;
+    glExtensions |= ES2Compatibility;
 #endif
 #if defined(QT_OPENGL_ES_1)
     if (extensions.match("GL_OES_framebuffer_object"))
diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index 387c8f7..623eeaf 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -284,7 +284,8 @@ public:
         DDSTextureCompression   = 0x00008000,
         ETC1TextureCompression  = 0x00010000,
         PVRTCTextureCompression = 0x00020000,
-        FragmentShader          = 0x00040000
+        FragmentShader          = 0x00040000,
+        ES2Compatibility        = 0x00080000
     };
     Q_DECLARE_FLAGS(Extensions, Extension)
 
diff --git a/src/opengl/qgl_win.cpp b/src/opengl/qgl_win.cpp
index 5ab944a..8eb6177 100644
--- a/src/opengl/qgl_win.cpp
+++ b/src/opengl/qgl_win.cpp
@@ -1042,7 +1042,7 @@ int QGLContext::choosePixelFormat(void* dummyPfd, HDC pdc)
         iAttributes[i++] = WGL_DRAW_TO_WINDOW_ARB;
         iAttributes[i++] = TRUE;
         iAttributes[i++] = WGL_COLOR_BITS_ARB;
-        iAttributes[i++] = 32;
+        iAttributes[i++] = 24;
         iAttributes[i++] = WGL_DOUBLE_BUFFER_ARB;
         iAttributes[i++] = d->glFormat.doubleBuffer();
         if (d->glFormat.stereo()) {
diff --git a/src/opengl/qglshaderprogram.cpp b/src/opengl/qglshaderprogram.cpp
index 74382b0..bc1c009 100644
--- a/src/opengl/qglshaderprogram.cpp
+++ b/src/opengl/qglshaderprogram.cpp
@@ -97,6 +97,10 @@ QT_BEGIN_NAMESPACE
     to just features that are present in GLSL/ES, and avoid
     standard variable names that only work on the desktop.
 
+    If the \c{GL_ARB_ES2_compatibility} extension is present,
+    then the above prefix is not added because the desktop OpenGL
+    implementation supports precision qualifiers.
+
     \section1 Simple shader example
 
     \snippet doc/src/snippets/code/src_opengl_qglshaderprogram.cpp 1
@@ -394,8 +398,10 @@ bool QGLShader::compileSourceCode(const char *source)
             srclen.append(GLint(headerLen));
         }
 #ifdef QGL_DEFINE_QUALIFIERS
-        src.append(qualifierDefines);
-        srclen.append(GLint(sizeof(qualifierDefines) - 1));
+        if (!(QGLExtensions::glExtensions() & QGLExtensions::ES2Compatibility)) {
+            src.append(qualifierDefines);
+            srclen.append(GLint(sizeof(qualifierDefines) - 1));
+        }
 #endif
 #ifdef QGL_REDEFINE_HIGHP
         if (d->shaderType == Fragment) {