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-rw-r--r--src/gui/opengl/qopenglfunctions.cpp106
1 files changed, 42 insertions, 64 deletions
diff --git a/src/gui/opengl/qopenglfunctions.cpp b/src/gui/opengl/qopenglfunctions.cpp
index 977565516f..b4ff21f3fd 100644
--- a/src/gui/opengl/qopenglfunctions.cpp
+++ b/src/gui/opengl/qopenglfunctions.cpp
@@ -45,6 +45,7 @@
#include <QtGui/private/qopengl_p.h>
#include <QtGui/private/qguiapplication_p.h>
#include <qpa/qplatformintegration.h>
+#include <qpa/qplatformnativeinterface.h>
#ifdef Q_OS_INTEGRITY
#include <EGL/egl.h>
@@ -89,65 +90,18 @@ void CLASS::init(QOpenGLContext *context) \
that need it. The recommended way to use QOpenGLFunctions is by
direct inheritance:
- \code
- class MyGLWindow : public QWindow, protected QOpenGLFunctions
- {
- Q_OBJECT
- public:
- MyGLWindow(QScreen *screen = 0);
-
- protected:
- void initializeGL();
- void paintGL();
-
- QOpenGLContext *m_context;
- };
-
- MyGLWindow(QScreen *screen)
- : QWindow(screen), QOpenGLWidget(parent)
- {
- setSurfaceType(OpenGLSurface);
- create();
-
- // Create an OpenGL context
- m_context = new QOpenGLContext;
- m_context->create();
-
- // Setup scene and render it
- initializeGL();
- paintGL();
- }
-
- void MyGLWindow::initializeGL()
- {
- m_context->makeCurrent(this);
- initializeOpenGLFunctions();
- }
- \endcode
+ \snippet code/src_gui_opengl_qopenglfunctions.cpp 0
The \c{paintGL()} function can then use any of the OpenGL ES 2.0
functions without explicit resolution, such as glActiveTexture()
in the following example:
- \code
- void MyGLWindow::paintGL()
- {
- m_context->makeCurrent(this);
- glActiveTexture(GL_TEXTURE1);
- glBindTexture(GL_TEXTURE_2D, textureId);
- ...
- m_context->swapBuffers(this);
- m_context->doneCurrent();
- }
- \endcode
+ \snippet code/src_gui_opengl_qopenglfunctions.cpp 1
QOpenGLFunctions can also be used directly for ad-hoc invocation
of OpenGL ES 2.0 functions on all platforms:
- \code
- QOpenGLFunctions glFuncs(QOpenGLContext::currentContext());
- glFuncs.glActiveTexture(GL_TEXTURE1);
- \endcode
+ \snippet code/src_gui_opengl_qopenglfunctions.cpp 2
An alternative approach is to query the context's associated
QOpenGLFunctions instance. This is somewhat faster than the previous
@@ -156,10 +110,7 @@ void CLASS::init(QOpenGLContext *context) \
resolving happens only once for a given context, regardless of the number of
QOpenGLFunctions instances initialized for it.
- \code
- QOpenGLFunctions *glFuncs = QOpenGLContext::currentContext()->functions();
- glFuncs->glActiveTexture(GL_TEXTURE1);
- \endcode
+ \snippet code/src_gui_opengl_qopenglfunctions.cpp 3
QOpenGLFunctions provides wrappers for all OpenGL ES 2.0
functions, including the common subset of OpenGL 1.x and ES
@@ -174,10 +125,7 @@ void CLASS::init(QOpenGLContext *context) \
feature. For example, the following checks if non power of two
textures are available:
- \code
- QOpenGLFunctions funcs(QOpenGLContext::currentContext());
- bool npot = funcs.hasOpenGLFeature(QOpenGLFunctions::NPOTTextures);
- \endcode
+ \snippet code/src_gui_opengl_qopenglfunctions.cpp 4
\sa QOpenGLContext, QSurfaceFormat
*/
@@ -294,9 +242,19 @@ QOpenGLExtensions::QOpenGLExtensions(QOpenGLContext *context)
static int qt_gl_resolve_features()
{
QOpenGLContext *ctx = QOpenGLContext::currentContext();
+ QOpenGLExtensionMatcher extensions;
+ int features = 0;
+ if ((extensions.match("GL_KHR_blend_equation_advanced")
+ || extensions.match("GL_NV_blend_equation_advanced")) &&
+ (extensions.match("GL_KHR_blend_equation_advanced_coherent")
+ || extensions.match("GL_NV_blend_equation_advanced_coherent"))) {
+ // We need both the advanced equations and the coherency for us
+ // to be able to easily use the new blend equations
+ features |= QOpenGLFunctions::BlendEquationAdvanced;
+ }
if (ctx->isOpenGLES()) {
// OpenGL ES
- int features = QOpenGLFunctions::Multitexture |
+ features |= QOpenGLFunctions::Multitexture |
QOpenGLFunctions::Shaders |
QOpenGLFunctions::Buffers |
QOpenGLFunctions::Framebuffers |
@@ -308,7 +266,6 @@ static int qt_gl_resolve_features()
QOpenGLFunctions::CompressedTextures |
QOpenGLFunctions::Multisample |
QOpenGLFunctions::StencilSeparate;
- QOpenGLExtensionMatcher extensions;
if (extensions.match("GL_IMG_texture_npot"))
features |= QOpenGLFunctions::NPOTTextures;
if (extensions.match("GL_OES_texture_npot"))
@@ -320,14 +277,18 @@ static int qt_gl_resolve_features()
if (!(renderer && strstr(renderer, "Mesa")))
features |= QOpenGLFunctions::TextureRGFormats;
}
- if (ctx->format().majorVersion() >= 3)
+ if (ctx->format().majorVersion() >= 3) {
features |= QOpenGLFunctions::MultipleRenderTargets;
+ if (ctx->format().minorVersion() >= 2 && extensions.match("GL_KHR_blend_equation_advanced_coherent")) {
+ // GL_KHR_blend_equation_advanced is included in OpenGL ES/3.2
+ features |= QOpenGLFunctions::BlendEquationAdvanced;
+ }
+ }
return features;
} else {
// OpenGL
- int features = QOpenGLFunctions::TextureRGFormats;
+ features |= QOpenGLFunctions::TextureRGFormats;
QSurfaceFormat format = QOpenGLContext::currentContext()->format();
- QOpenGLExtensionMatcher extensions;
if (format.majorVersion() >= 3)
features |= QOpenGLFunctions::Framebuffers | QOpenGLFunctions::MultipleRenderTargets;
@@ -411,6 +372,8 @@ static int qt_gl_resolve_extensions()
extensions |= QOpenGLExtensions::NVFloatBuffer;
if (extensionMatcher.match("GL_ARB_pixel_buffer_object"))
extensions |= QOpenGLExtensions::PixelBufferObject;
+ if (extensionMatcher.match("GL_ARB_texture_swizzle") || extensionMatcher.match("GL_EXT_texture_swizzle"))
+ extensions |= QOpenGLExtensions::TextureSwizzle;
if (ctx->isOpenGLES()) {
if (format.majorVersion() >= 2)
@@ -423,7 +386,8 @@ static int qt_gl_resolve_extensions()
| QOpenGLExtensions::MapBufferRange
| QOpenGLExtensions::FramebufferBlit
| QOpenGLExtensions::FramebufferMultisample
- | QOpenGLExtensions::Sized8Formats;
+ | QOpenGLExtensions::Sized8Formats
+ | QOpenGLExtensions::TextureSwizzle;
} else {
// Recognize features by extension name.
if (extensionMatcher.match("GL_OES_packed_depth_stencil"))
@@ -449,6 +413,17 @@ static int qt_gl_resolve_extensions()
// We don't match GL_APPLE_texture_format_BGRA8888 here because it has different semantics.
if (extensionMatcher.match("GL_IMG_texture_format_BGRA8888") || extensionMatcher.match("GL_EXT_texture_format_BGRA8888"))
extensions |= QOpenGLExtensions::BGRATextureFormat;
+#if defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_EMBEDDED)
+ QString *deviceName =
+ static_cast<QString *>(QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("AndroidDeviceName"));
+ static bool wrongfullyReportsBgra8888Support = deviceName != 0
+ && (deviceName->compare(QLatin1String("samsung SM-T211"), Qt::CaseInsensitive) == 0
+ || deviceName->compare(QLatin1String("samsung SM-T210"), Qt::CaseInsensitive) == 0
+ || deviceName->compare(QLatin1String("samsung SM-T215"), Qt::CaseInsensitive) == 0);
+ if (wrongfullyReportsBgra8888Support)
+ extensions &= ~QOpenGLExtensions::BGRATextureFormat;
+#endif
+
if (extensionMatcher.match("GL_EXT_discard_framebuffer"))
extensions |= QOpenGLExtensions::DiscardFramebuffer;
if (extensionMatcher.match("GL_EXT_texture_norm16"))
@@ -482,6 +457,9 @@ static int qt_gl_resolve_extensions()
if (format.version() >= qMakePair(3, 2) || extensionMatcher.match("GL_ARB_geometry_shader4"))
extensions |= QOpenGLExtensions::GeometryShaders;
+ if (format.version() >= qMakePair(3, 3))
+ extensions |= QOpenGLExtensions::TextureSwizzle;
+
if (extensionMatcher.match("GL_ARB_map_buffer_range"))
extensions |= QOpenGLExtensions::MapBufferRange;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-12 17:43:41 +0000