Add pixel unpack buffer stubs to the Renderer classes.

src/libGLESv2/renderer/Renderer.h

@@ -259,6 +259,10 @@ class Renderer
     void setCurrentClientVersion(int clientVersion) { mCurrentClientVersion = clientVersion; }
     int getCurrentClientVersion() const { return mCurrentClientVersion; }
 
+    // Buffer-to-texture and Texture-to-buffer copies
+    virtual bool fastCopyBufferToTexture(const gl::PixelUnpackState &unpack, unsigned int offset, RenderTarget *destRenderTarget,
+                                         GLenum destinationFormat, GLenum sourcePixelsType, const gl::Box &destArea) = 0;
+
     virtual bool getLUID(LUID *adapterLuid) const = 0;
 
   protected:

src/libGLESv2/renderer/Renderer11.cpp

@@ -30,6 +30,7 @@
 #include "libGLESv2/renderer/Fence11.h"
 #include "libGLESv2/renderer/Blit11.h"
 #include "libGLESv2/renderer/Clear11.h"
+#include "libGLESv2/renderer/PixelTransfer11.h"
 
 #include "libEGL/Display.h"
 
@@ -68,6 +69,7 @@ Renderer11::Renderer11(egl::Display *display, HDC hDc) : Renderer(display), mDc(
     mTriangleFanIB = NULL;
 
     mBlit = NULL;
+    mPixelTransfer = NULL;
 
     mClear = NULL;
 
@@ -391,6 +393,9 @@ void Renderer11::initializeDevice()
     ASSERT(!mClear);
     mClear = new Clear11(this);
 
+    ASSERT(!mPixelTransfer);
+    mPixelTransfer = new PixelTransfer11(this);
+
     markAllStateDirty();
 }
 
@@ -1615,6 +1620,7 @@ void Renderer11::releaseDeviceResources()
     SafeDelete(mTriangleFanIB);
     SafeDelete(mBlit);
     SafeDelete(mClear);
+    SafeDelete(mPixelTransfer);
 
     SafeRelease(mDriverConstantBufferVS);
     SafeRelease(mDriverConstantBufferPS);
@@ -2768,6 +2774,13 @@ FenceImpl *Renderer11::createFence()
     return new Fence11(this);
 }
 
+bool Renderer11::fastCopyBufferToTexture(const gl::PixelUnpackState &unpack, unsigned int offset, RenderTarget *destRenderTarget,
+                                         GLenum destinationFormat, GLenum sourcePixelsType, const gl::Box &destArea)
+{
+    ASSERT(gl::IsFastCopyBufferToTextureSupported(destinationFormat, getCurrentClientVersion()));
+    return mPixelTransfer->copyBufferToTexture(unpack, offset, destRenderTarget, destinationFormat, sourcePixelsType, destArea);
+}
+
 bool Renderer11::getRenderTargetResource(gl::Renderbuffer *colorbuffer, unsigned int *subresourceIndex, ID3D11Texture2D **resource)
 {
     ASSERT(colorbuffer != NULL);

src/libGLESv2/renderer/Renderer11.h

@@ -31,6 +31,7 @@ class IndexDataManager;
 class StreamingIndexBufferInterface;
 class Blit11;
 class Clear11;
+class PixelTransfer11;
 
 enum
 {
@@ -206,6 +207,10 @@ class Renderer11 : public Renderer
 
     Blit11 *getBlitter() { return mBlit; }
 
+    // Buffer-to-texture and Texture-to-buffer copies
+    virtual bool fastCopyBufferToTexture(const gl::PixelUnpackState &unpack, unsigned int offset, RenderTarget *destRenderTarget,
+                                         GLenum destinationFormat, GLenum sourcePixelsType, const gl::Box &destArea);
+
     bool getRenderTargetResource(gl::Renderbuffer *colorbuffer, unsigned int *subresourceIndex, ID3D11Texture2D **resource);
     void unapplyRenderTargets();
     void setOneTimeRenderTarget(ID3D11RenderTargetView *renderTargetView);
@@ -352,6 +357,7 @@ class Renderer11 : public Renderer
 
     // Texture copy resources
     Blit11 *mBlit;
+    PixelTransfer11 *mPixelTransfer;
 
     // Masked clear resources
     Clear11 *mClear;

src/libGLESv2/renderer/Renderer9.cpp

@@ -693,6 +693,14 @@ FenceImpl *Renderer9::createFence()
     return new Fence9(this);
 }
 
+bool Renderer9::fastCopyBufferToTexture(const gl::PixelUnpackState &unpack, unsigned int offset, RenderTarget *destRenderTarget,
+                                        GLenum destinationFormat, GLenum sourcePixelsType, const gl::Box &destArea)
+{
+    // Pixel buffer objects are not supported in D3D9, since D3D9 is ES2-only and PBOs are ES3.
+    UNREACHABLE();
+    return false;
+}
+
 void Renderer9::setSamplerState(gl::SamplerType type, int index, const gl::SamplerState &samplerState)
 {
     bool *forceSetSamplers = (type == gl::SAMPLER_PIXEL) ? mForceSetPixelSamplerStates : mForceSetVertexSamplerStates;

src/libGLESv2/renderer/Renderer9.h

@@ -216,6 +216,10 @@ class Renderer9 : public Renderer
     virtual QueryImpl *createQuery(GLenum type);
     virtual FenceImpl *createFence();
 
+    // Buffer-to-texture and Texture-to-buffer copies
+    virtual bool fastCopyBufferToTexture(const gl::PixelUnpackState &unpack, unsigned int offset, RenderTarget *destRenderTarget,
+                                         GLenum destinationFormat, GLenum sourcePixelsType, const gl::Box &destArea);
+
     // D3D9-renderer specific methods
     bool boxFilter(IDirect3DSurface9 *source, IDirect3DSurface9 *dest);