diff options
Diffstat (limited to 'src/gui/opengl/qopenglfunctions.cpp')
| -rw-r--r-- | src/gui/opengl/qopenglfunctions.cpp | 52 |
1 files changed, 49 insertions, 3 deletions
diff --git a/src/gui/opengl/qopenglfunctions.cpp b/src/gui/opengl/qopenglfunctions.cpp index bc4a714c6c..f3d3d0b47b 100644 --- a/src/gui/opengl/qopenglfunctions.cpp +++ b/src/gui/opengl/qopenglfunctions.cpp @@ -126,6 +126,18 @@ QT_BEGIN_NAMESPACE glFuncs.glActiveTexture(GL_TEXTURE1); \endcode + An alternative approach is to query the context's associated + QOpenGLFunctions instance. This is somewhat faster than the previous + approach due to avoiding the creation of a new instance, but the difference + is fairly small since the internal data structures are shared, and function + 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 + QOpenGLFunctions provides wrappers for all OpenGL ES 2.0 functions, including the common subset of OpenGL 1.x and ES 2.0. While such functions, for example glClear() or @@ -372,6 +384,12 @@ static int qt_gl_resolve_extensions() if (ctx->isOpenGLES()) { if (format.majorVersion() >= 2) extensions |= QOpenGLExtensions::GenerateMipmap; + + if (format.majorVersion() >= 3) + extensions |= QOpenGLExtensions::PackedDepthStencil + | QOpenGLExtensions::Depth24 + | QOpenGLExtensions::ElementIndexUint; + if (extensionMatcher.match("GL_OES_mapbuffer")) extensions |= QOpenGLExtensions::MapBuffer; if (extensionMatcher.match("GL_OES_packed_depth_stencil")) @@ -387,6 +405,12 @@ static int qt_gl_resolve_extensions() extensions |= QOpenGLExtensions::FramebufferBlit; if (extensionMatcher.match("GL_ANGLE_framebuffer_multisample")) extensions |= QOpenGLExtensions::FramebufferMultisample; + if (extensionMatcher.match("GL_NV_framebuffer_blit")) + extensions |= QOpenGLExtensions::FramebufferBlit; + if (extensionMatcher.match("GL_NV_framebuffer_multisample")) + extensions |= QOpenGLExtensions::FramebufferMultisample; + if (format.majorVersion() >= 3) + extensions |= QOpenGLExtensions::FramebufferBlit | QOpenGLExtensions::FramebufferMultisample; } else { extensions |= QOpenGLExtensions::ElementIndexUint | QOpenGLExtensions::MapBuffer; @@ -2027,7 +2051,9 @@ namespace { enum ResolvePolicy { ResolveOES = 0x1, - ResolveEXT = 0x2 + ResolveEXT = 0x2, + ResolveANGLE = 0x4, + ResolveNV = 0x8 }; template <typename Base, typename FuncType, int Policy, typename ReturnType> @@ -2149,6 +2175,12 @@ private: if ((Policy & ResolveEXT) && !(funcs->*funcPointerName)) \ funcs->*funcPointerName = (FuncType)context->getProcAddress(funcName + "EXT"); \ \ + if ((Policy & ResolveANGLE) && !(funcs->*funcPointerName)) \ + funcs->*funcPointerName = (FuncType)context->getProcAddress(funcName + "ANGLE"); \ + \ + if ((Policy & ResolveNV) && !(funcs->*funcPointerName)) \ + funcs->*funcPointerName = (FuncType)context->getProcAddress(funcName + "NV"); \ + \ if (!alternateFuncName.isEmpty() && !(funcs->*funcPointerName)) { \ funcs->*funcPointerName = (FuncType)context->getProcAddress(alternateFuncName); \ \ @@ -2160,6 +2192,12 @@ private: \ if ((Policy & ResolveEXT) && !(funcs->*funcPointerName)) \ funcs->*funcPointerName = (FuncType)context->getProcAddress(alternateFuncName + "EXT"); \ + \ + if ((Policy & ResolveANGLE) && !(funcs->*funcPointerName)) \ + funcs->*funcPointerName = (FuncType)context->getProcAddress(funcName + "ANGLE"); \ + \ + if ((Policy & ResolveNV) && !(funcs->*funcPointerName)) \ + funcs->*funcPointerName = (FuncType)context->getProcAddress(funcName + "NV"); \ } #define RESOLVER_COMMON_NON_VOID \ @@ -3156,16 +3194,24 @@ static void QOPENGLF_APIENTRY qopenglfResolveBlitFramebuffer(GLint srcX0, GLint GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) { - RESOLVE_FUNC_VOID_WITH_ALTERNATE(ResolveEXT, BlitFramebuffer, BlitFramebufferANGLE) +#ifdef QT_OPENGL_ES_3 + ::glBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); +#else + RESOLVE_FUNC_VOID(ResolveEXT | ResolveANGLE | ResolveNV, BlitFramebuffer) (srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); +#endif } static void QOPENGLF_APIENTRY qopenglfResolveRenderbufferStorageMultisample(GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height) { - RESOLVE_FUNC_VOID_WITH_ALTERNATE(ResolveEXT, RenderbufferStorageMultisample, RenderbufferStorageMultisampleANGLE) +#ifdef QT_OPENGL_ES_3 + ::glRenderbufferStorageMultisample(target, samples, internalFormat, width, height); +#else + RESOLVE_FUNC_VOID(ResolveEXT | ResolveANGLE | ResolveNV, RenderbufferStorageMultisample) (target, samples, internalFormat, width, height); +#endif } static void QOPENGLF_APIENTRY qopenglfResolveGetBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data) |