Manually generated sRGB mipmaps.

src/gpu/gl/GrGLProgram.h

Index: src/gpu/gl/GrGLProgram.h
diff --git a/src/gpu/gl/GrGLProgram.h b/src/gpu/gl/GrGLProgram.h
index 7487a1e9007468547e3f97def09e9ec8e01a1b67..9f2b2e9b74318c4c51e7d06cda92621d371bb549 100644
--- a/src/gpu/gl/GrGLProgram.h
+++ b/src/gpu/gl/GrGLProgram.h
@@ -96,6 +96,12 @@ public:
      */
     void setData(const GrPrimitiveProcessor&, const GrPipeline&);
 
+    /**
+     * This function retrieves the textures that need to be used by each GrGL*Processor, and
+     * ensures that any textures requiring mipmaps have their mipmaps correctly built.
+     */
+    void generateMipmaps(const GrPrimitiveProcessor&, const GrPipeline&);
+
 protected:
     typedef GrGLSLProgramDataManager::UniformHandle UniformHandle;
     typedef GrGLProgramDataManager::UniformInfoArray UniformInfoArray;
@@ -122,6 +128,9 @@ protected:
     // Helper for setData() that binds textures and texel buffers to the appropriate texture units
     void bindTextures(const GrProcessor&, bool allowSRGBInputs, int* nextSamplerIdx);
 
+    // Helper for generateMipmaps() that ensures mipmaps are up to date
+    void generateMipmaps(const GrProcessor&, bool allowSRGBInputs);
+
     // these reflect the current values of uniforms (GL uniform values travel with program)
     RenderTargetState fRenderTargetState;
     BuiltinUniformHandles fBuiltinUniformHandles;