Merge commit 'qt/master' into kinetic-graphicseffect

Conflicts:
	src/gui/graphicsview/qgraphicsitem_p.h

7 files changed, 42 insertions, 23 deletions

diff --git a/src/opengl/gl2paintengineex/qglengineshadersource_p.h b/src/opengl/gl2paintengineex/qglengineshadersource_p.h
index 842cac4..cf930f3 100644
--- a/src/opengl/gl2paintengineex/qglengineshadersource_p.h
+++ b/src/opengl/gl2paintengineex/qglengineshadersource_p.h
@@ -73,8 +73,8 @@ static const char* const qglslMainVertexShader = "\
     }";
 
 static const char* const qglslMainWithTexCoordsVertexShader = "\
-    attribute lowp  vec2    textureCoordArray; \
-    varying   lowp  vec2    textureCoords; \
+    attribute mediump  vec2 textureCoordArray; \
+    varying   mediump  vec2 textureCoords; \
     uniform   highp float   depth;\
     void setPosition();\
     void main(void) \
@@ -284,7 +284,7 @@ static const char* const qglslSolidBrushSrcFragmentShader = "\
     }";
 
 static const char* const qglslImageSrcFragmentShader = "\
-    varying highp vec2      textureCoords; \
+    varying mediump vec2    textureCoords; \
     uniform       sampler2D imageTexture; \
     lowp vec4 srcPixel() { \
         return texture2D(imageTexture, textureCoords); \
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index b415b13..c1e39a7 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -75,6 +75,7 @@
 #include <private/qfontengine_p.h>
 #include <private/qtextureglyphcache_p.h>
 #include <private/qpixmapdata_gl_p.h>
+#include <private/qdatabuffer_p.h>
 
 #include "qglgradientcache_p.h"
 #include "qglengineshadermanager_p.h"
@@ -175,7 +176,7 @@ void QGLTextureGlyphCache::createTextureData(int width, int height)
     m_height = height;
 
     QVarLengthArray<uchar> data(width * height);
-    for (int i = 0; i < width * height; ++i)
+    for (int i = 0; i < data.size(); ++i)
         data[i] = 0;
 
     if (m_type == QFontEngineGlyphCache::Raster_RGBMask)
@@ -200,13 +201,18 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height)
 
     glBindFramebuffer(GL_FRAMEBUFFER_EXT, m_fbo);
 
-    GLuint colorBuffer;
-    glGenRenderbuffers(1, &colorBuffer);
-    glBindRenderbuffer(GL_RENDERBUFFER_EXT, colorBuffer);
-    glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_RGBA, oldWidth, oldHeight);
-    glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
-                              GL_RENDERBUFFER_EXT, colorBuffer);
-    glBindRenderbuffer(GL_RENDERBUFFER_EXT, 0);
+    GLuint tmp_texture;
+    glGenTextures(1, &tmp_texture);
+    glBindTexture(GL_TEXTURE_2D, tmp_texture);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, oldWidth, oldHeight, 0,
+                 GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+    glBindTexture(GL_TEXTURE_2D, 0);
+    glFramebufferTexture2D(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+                           GL_TEXTURE_2D, tmp_texture, 0);
 
     glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT);
     glBindTexture(GL_TEXTURE_2D, oldTexture);
@@ -237,11 +243,24 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height)
     glDisableVertexAttribArray(QT_TEXTURE_COORDS_ATTR);
 
     glBindTexture(GL_TEXTURE_2D, m_texture);
+
+#ifdef QT_OPENGL_ES_2
+    QDataBuffer<uchar> buffer(4*oldWidth*oldHeight);
+    glReadPixels(0, 0, oldWidth, oldHeight, GL_RGBA, GL_UNSIGNED_BYTE, buffer.data());
+
+    // do an in-place conversion from GL_RGBA to GL_ALPHA
+    for (int i=0; i<oldWidth*oldHeight; ++i)
+        buffer.data()[i] = buffer.at(4*i + 3);
+
+    glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, oldWidth, oldHeight,
+                    GL_ALPHA, GL_UNSIGNED_BYTE, buffer.data());
+#else
     glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, oldWidth, oldHeight);
+#endif
 
     glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
                               GL_RENDERBUFFER_EXT, 0);
-    glDeleteRenderbuffers(1, &colorBuffer);
+    glDeleteTextures(1, &tmp_texture);
     glDeleteTextures(1, &oldTexture);
 
     glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->current_fbo);
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index 67c02f2..e031fb5 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -147,7 +147,7 @@ QGLSignalProxy *QGLSignalProxy::instance()
     \brief The QGL namespace specifies miscellaneous identifiers used
     in the Qt OpenGL module.
 
-    \ingroup multimedia
+    \ingroup painting-3D
 */
 
 /*!
@@ -190,7 +190,7 @@ QGLSignalProxy *QGLSignalProxy::instance()
     \brief The QGLFormat class specifies the display format of an OpenGL
     rendering context.
 
-    \ingroup multimedia
+    \ingroup painting-3D
 
     A display format has several characteristics:
     \list
@@ -1554,7 +1554,7 @@ Q_OPENGL_EXPORT QGLShareRegister* qgl_share_reg()
     \class QGLContext
     \brief The QGLContext class encapsulates an OpenGL rendering context.
 
-    \ingroup multimedia
+    \ingroup painting-3D
 
     An OpenGL rendering context is a complete set of OpenGL state
     variables. The rendering context's \l {QGL::FormatOption} {format}
@@ -2775,8 +2775,8 @@ const QGLContext* QGLContext::currentContext()
     \class QGLWidget
     \brief The QGLWidget class is a widget for rendering OpenGL graphics.
 
-    \ingroup multimedia
-    \mainclass
+    \ingroup painting-3D
+
 
     QGLWidget provides functionality for displaying OpenGL graphics
     integrated into a Qt application. It is very simple to use. You
diff --git a/src/opengl/qglcolormap.cpp b/src/opengl/qglcolormap.cpp
index 0d38ce7..cdbf1c8 100644
--- a/src/opengl/qglcolormap.cpp
+++ b/src/opengl/qglcolormap.cpp
@@ -45,7 +45,7 @@
     QGLWidgets.
 
     \module OpenGL
-    \ingroup multimedia
+    \ingroup painting-3D
     \ingroup shared
 
     QGLColormap provides a platform independent way of specifying and
diff --git a/src/opengl/qglframebufferobject.cpp b/src/opengl/qglframebufferobject.cpp
index f48c18d..db33297 100644
--- a/src/opengl/qglframebufferobject.cpp
+++ b/src/opengl/qglframebufferobject.cpp
@@ -90,7 +90,7 @@ public:
 
     \since 4.6
 
-    \ingroup multimedia
+    \ingroup painting-3D
 
     A framebuffer object has several characteristics:
     \list
@@ -275,7 +275,6 @@ public:
     GLenum target;
     QSize size;
     QGLFramebufferObjectFormat format;
-    int samples;
     uint valid : 1;
     uint bound : 1;
     QGLFramebufferObject::Attachment fbo_attachment;
@@ -368,7 +367,6 @@ void QGLFramebufferObjectPrivate::init(const QSize &sz, QGLFramebufferObject::At
         valid = checkFramebufferStatus();
 
         color_buffer = 0;
-        samples = 0;
     } else {
         GLint maxSamples;
         glGetIntegerv(GL_MAX_SAMPLES_EXT, &maxSamples);
@@ -478,7 +476,7 @@ void QGLFramebufferObjectPrivate::init(const QSize &sz, QGLFramebufferObject::At
     \brief The QGLFramebufferObject class encapsulates an OpenGL framebuffer object.
     \since 4.2
 
-    \ingroup multimedia
+    \ingroup painting-3D
 
     The QGLFramebufferObject class encapsulates an OpenGL framebuffer
     object, defined by the \c{GL_EXT_framebuffer_object} extension. In
diff --git a/src/opengl/qglpixelbuffer.cpp b/src/opengl/qglpixelbuffer.cpp
index 884bb36..4140bdf 100644
--- a/src/opengl/qglpixelbuffer.cpp
+++ b/src/opengl/qglpixelbuffer.cpp
@@ -44,7 +44,7 @@
     \brief The QGLPixelBuffer class encapsulates an OpenGL pbuffer.
     \since 4.1
 
-    \ingroup multimedia
+    \ingroup painting-3D
 
     Rendering into a pbuffer is normally done using full hardware
     acceleration. This can be significantly faster than rendering
diff --git a/src/opengl/qglshaderprogram.cpp b/src/opengl/qglshaderprogram.cpp
index e3627ff..f8bffd3 100644
--- a/src/opengl/qglshaderprogram.cpp
+++ b/src/opengl/qglshaderprogram.cpp
@@ -55,6 +55,7 @@ QT_BEGIN_NAMESPACE
     \class QGLShaderProgram
     \brief The QGLShaderProgram class allows OpenGL shader programs to be linked and used.
     \since 4.6
+    \ingroup painting-3D
 
     \section1 Introduction
 
@@ -181,6 +182,7 @@ QT_BEGIN_NAMESPACE
     \class QGLShader
     \brief The QGLShader class allows OpenGL shaders to be compiled.
     \since 4.6
+    \ingroup painting-3D
 
     This class supports shaders written in the OpenGL Shading Language (GLSL)
     and in the OpenGL/ES Shading Language (GLSL/ES).