FBO probing at Context startup is very expensive. This patch removes the
test of whether FBOs work at all, and adds parameters to the GrGLInterface
so that values can be passed into the Context creation routines instead
of executing the probes.
The GrGLInterface now defaults to run FBO tests on Android (since hardware
varies), but assumes success on desktop and software platforms.
git-svn-id: http://skia.googlecode.com/svn/trunk@1582 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/include/GrGLInterface.h b/gpu/include/GrGLInterface.h
index 150e8e4..1a3dade 100644
--- a/gpu/include/GrGLInterface.h
+++ b/gpu/include/GrGLInterface.h
@@ -50,11 +50,11 @@
GR_API void GrGLSetGLInterface(GrGLInterface* gl_interface);
/*
- * This is called when GrGLSetGLInterface() hasn't been called before creating a
- * GrGpuGL object. It provides a default implementation. The actual implementation
- * depends on which GrGLDefaultInterface_*.cpp has been linked. There are some
- * platform-specific implementations provided as well as
- * GrGLDefaultInterface_none.cpp which does nothing (effectively requiring an
+ * This is called when GrGLSetGLInterface() hasn't been called before creating
+ * a GrGpuGL object. It provides a default implementation. The actual
+ * implementation depends on which GrGLDefaultInterface_*.cpp has been linked.
+ * There are some platform-specific implementations provided as well as
+ * GrGLDefaultInterface_none.cpp which does nothing (effectively requiring an
* explicit GrGLSetGLInterface call by the host).
*/
void GrGLSetDefaultGLInterface();
@@ -221,6 +221,16 @@
// exported: GLES{1|2} or Desktop.
GrGLBinding fBindingsExported;
+ /// Does this GL support NPOT textures on FBOs?
+ /// boolean value, or -1 to probe (slowly) at context creation.
+ int fNPOTRenderTargetSupport;
+
+ /// Some GL implementations (PowerVR SGX devices like the iPhone 4)
+ /// have restrictions on the size of small render targets.
+ /// -1 to probe (slowly) at context creation.
+ int fMinRenderTargetHeight;
+ int fMinRenderTargetWidth;
+
GrGLActiveTextureProc fActiveTexture;
GrGLAttachShaderProc fAttachShader;
GrGLBindAttribLocationProc fBindAttribLocation;