diff options
| -rw-r--r-- | src/gpu/gl/GrGLBufferImpl.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/gpu/gl/GrGLBufferImpl.cpp b/src/gpu/gl/GrGLBufferImpl.cpp index 04c90725ae..6867e1383d 100644 --- a/src/gpu/gl/GrGLBufferImpl.cpp +++ b/src/gpu/gl/GrGLBufferImpl.cpp @@ -16,6 +16,10 @@ #define VALIDATE() do {} while(false) #endif +// GL_STREAM_DRAW triggers an optimization in Chromium's GPU process where a client's vertex buffer +// objects are implemented as client-side-arrays on tile-deferred architectures. +#define DYNAMIC_USAGE_PARAM GR_GL_STREAM_DRAW + GrGLBufferImpl::GrGLBufferImpl(GrGpuGL* gpu, const Desc& desc, GrGLenum bufferType) : fDesc(desc) , fBufferType(bufferType) @@ -76,7 +80,7 @@ void* GrGLBufferImpl::lock(GrGpuGL* gpu) { GL_CALL(gpu, BufferData(fBufferType, fDesc.fSizeInBytes, NULL, - fDesc.fDynamic ? GR_GL_DYNAMIC_DRAW : GR_GL_STATIC_DRAW)); + fDesc.fDynamic ? DYNAMIC_USAGE_PARAM : GR_GL_STATIC_DRAW)); GR_GL_CALL_RET(gpu->glInterface(), fLockPtr, MapBuffer(fBufferType, GR_GL_WRITE_ONLY)); @@ -111,7 +115,7 @@ bool GrGLBufferImpl::updateData(GrGpuGL* gpu, const void* src, size_t srcSizeInB return true; } this->bind(gpu); - GrGLenum usage = fDesc.fDynamic ? GR_GL_DYNAMIC_DRAW : GR_GL_STATIC_DRAW; + GrGLenum usage = fDesc.fDynamic ? DYNAMIC_USAGE_PARAM : GR_GL_STATIC_DRAW; #if GR_GL_USE_BUFFER_DATA_NULL_HINT if (fDesc.fSizeInBytes == srcSizeInBytes) { |