Adds a function to get the texture resource of a framebuffer's color render target.

src/libGLESv2/renderer/Renderer11.cpp

@@ -2338,51 +2338,60 @@ IndexBuffer *Renderer11::createIndexBuffer()
     return new IndexBuffer11(this);
 }
 
-bool Renderer11::blitRect(gl::Framebuffer *readTarget, gl::Rectangle *readRect, gl::Framebuffer *drawTarget, gl::Rectangle *drawRect,
-                          bool blitRenderTarget, bool blitDepthStencil)
-{
-    // TODO
-    UNIMPLEMENTED();
-    return false;
-}
-
-void Renderer11::readPixels(gl::Framebuffer *framebuffer, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type,
-                            GLsizei outputPitch, bool packReverseRowOrder, GLint packAlignment, void* pixels)
+bool Renderer11::getRenderTargetResource(gl::Framebuffer *framebuffer, unsigned int *subresourceIndex, ID3D11Texture2D **resource)
 {
-    ID3D11Texture2D *colorBufferTexture = NULL;
-    unsigned int subresourceIndex = 0;
-
     gl::Renderbuffer *colorbuffer = framebuffer->getColorbuffer();
     if (colorbuffer)
     {
         RenderTarget11 *renderTarget = RenderTarget11::makeRenderTarget11(colorbuffer->getRenderTarget());
         if (renderTarget)
         {
-            subresourceIndex = renderTarget->getSubresourceIndex();
+            *subresourceIndex = renderTarget->getSubresourceIndex();
 
             ID3D11RenderTargetView *colorBufferRTV = renderTarget->getRenderTargetView();
             if (colorBufferRTV)
             {
                 ID3D11Resource *textureResource = NULL;
                 colorBufferRTV->GetResource(&textureResource);
+                colorBufferRTV->Release();
 
                 if (textureResource)
                 {
-                    HRESULT result = textureResource->QueryInterface(IID_ID3D11Texture2D, (void**)&colorBufferTexture);
+                    HRESULT result = textureResource->QueryInterface(IID_ID3D11Texture2D, (void**)resource);
                     textureResource->Release();
 
-                    if (FAILED(result))
+                    if (SUCCEEDED(result))
+                    {
+                        return true;
+                    }
+                    else
                     {
                         ERR("Failed to extract the ID3D11Texture2D from the render target resource, "
                             "HRESULT: 0x%X.", result);
-                        return;
                     }
                 }
             }
         }
     }
 
-    if (colorBufferTexture)
+    return false;
+}
+
+bool Renderer11::blitRect(gl::Framebuffer *readTarget, gl::Rectangle *readRect, gl::Framebuffer *drawTarget, gl::Rectangle *drawRect,
+                          bool blitRenderTarget, bool blitDepthStencil)
+{
+    // TODO
+    UNIMPLEMENTED();
+    return false;
+}
+
+void Renderer11::readPixels(gl::Framebuffer *framebuffer, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type,
+                            GLsizei outputPitch, bool packReverseRowOrder, GLint packAlignment, void* pixels)
+{
+    ID3D11Texture2D *colorBufferTexture = NULL;
+    unsigned int subresourceIndex = 0;
+
+    if (getRenderTargetResource(framebuffer, &subresourceIndex, &colorBufferTexture))
     {
         gl::Rectangle area;
         area.x = x;

src/libGLESv2/renderer/Renderer11.h

@@ -158,6 +158,8 @@ class Renderer11 : public Renderer
     ID3D11DeviceContext *getDeviceContext() { return mDeviceContext; };
     IDXGIFactory *getDxgiFactory() { return mDxgiFactory; };
 
+    bool getRenderTargetResource(gl::Framebuffer *framebuffer, unsigned int *subresourceIndex, ID3D11Texture2D **resource);
+
   private:
     DISALLOW_COPY_AND_ASSIGN(Renderer11);