Introduce GrColorSpaceXform, for gamut conversion on textures

gyp/gpu.gypi

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 # Include this gypi to include all 'gpu' files
 # The parent gyp/gypi file must define
 #       'skia_src_path'     e.g. skia/trunk/src
 #       'skia_include_path' e.g. skia/trunk/include
 #
 # The skia build defines these in common_variables.gypi
 #
 {
   'variables': {
     'skgpu_sources': [
       '<(skia_include_path)/gpu/GrBlend.h',
       '<(skia_include_path)/gpu/GrBuffer.h',
       '<(skia_include_path)/gpu/GrBufferAccess.h',
       '<(skia_include_path)/gpu/GrCaps.h',
       '<(skia_include_path)/gpu/GrClip.h',
       '<(skia_include_path)/gpu/GrColor.h',
+      '<(skia_include_path)/gpu/GrColorSpaceXform.h',
       '<(skia_include_path)/gpu/GrConfig.h',
       '<(skia_include_path)/gpu/GrContextOptions.h',
       '<(skia_include_path)/gpu/GrContext.h',
       '<(skia_include_path)/gpu/GrCoordTransform.h',
       '<(skia_include_path)/gpu/GrDrawContext.h',
       '<(skia_include_path)/gpu/GrFragmentProcessor.h',
       '<(skia_include_path)/gpu/GrGpuResource.h',
       '<(skia_include_path)/gpu/GrInvariantOutput.h',
       '<(skia_include_path)/gpu/GrPaint.h',
       '<(skia_include_path)/gpu/GrProcessor.h',
@@ skipping 47 matching lines @@
       '<(skia_src_path)/gpu/GrBlend.cpp',
       '<(skia_src_path)/gpu/GrBlurUtils.cpp',
       '<(skia_src_path)/gpu/GrBlurUtils.h',
       '<(skia_src_path)/gpu/GrBuffer.cpp',
       '<(skia_src_path)/gpu/GrBufferAllocPool.cpp',
       '<(skia_src_path)/gpu/GrBufferAllocPool.h',
       '<(skia_src_path)/gpu/GrCaps.cpp',
       '<(skia_src_path)/gpu/GrClip.cpp',
       '<(skia_src_path)/gpu/GrClipMaskManager.h',
       '<(skia_src_path)/gpu/GrClipMaskManager.cpp',
+      '<(skia_src_path)/gpu/GrColorSpaceXform.cpp',
       '<(skia_src_path)/gpu/GrContext.cpp',
       '<(skia_src_path)/gpu/GrCoordTransform.cpp',
       '<(skia_src_path)/gpu/GrDefaultGeoProcFactory.cpp',
       '<(skia_src_path)/gpu/GrDefaultGeoProcFactory.h',
       '<(skia_src_path)/gpu/GrDrawContext.cpp',
       '<(skia_src_path)/gpu/GrDrawContextPriv.h',
       '<(skia_src_path)/gpu/GrPathRenderingDrawContext.cpp',
       '<(skia_src_path)/gpu/GrPathRenderingDrawContext.h',
       '<(skia_src_path)/gpu/GrDrawingManager.cpp',
       '<(skia_src_path)/gpu/GrDrawingManager.h',
@@ skipping 290 matching lines @@
       '<(skia_src_path)/gpu/gl/builders/GrGLSLPrettyPrint.cpp',
 
       # GLSL
       '<(skia_src_path)/gpu/glsl/GrGLSL.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSL.h',
       '<(skia_src_path)/gpu/glsl/GrGLSL_impl.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLBlend.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLBlend.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLCaps.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLCaps.h',
+      '<(skia_src_path)/gpu/glsl/GrGLSLColorSpaceXformHelper.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLFragmentProcessor.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLFragmentProcessor.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLFragmentShaderBuilder.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLGeometryProcessor.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLGeometryProcessor.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLGeometryShaderBuilder.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLGeometryShaderBuilder.h',
       '<(skia_src_path)/gpu/glsl/GrGLSLPrimitiveProcessor.cpp',
       '<(skia_src_path)/gpu/glsl/GrGLSLPrimitiveProcessor.h',
@@ skipping 109 matching lines @@
       '<(skia_src_path)/gpu/gl/win/GrGLCreateNativeInterface_win.cpp',
       '<(skia_src_path)/gpu/gl/glx/GrGLCreateNativeInterface_glx.cpp',
       '<(skia_src_path)/gpu/gl/egl/GrGLCreateNativeInterface_egl.cpp',
       '<(skia_src_path)/gpu/gl/iOS/GrGLCreateNativeInterface_iOS.cpp',
       '<(skia_src_path)/gpu/gl/android/GrGLCreateNativeInterface_android.cpp',
     ],
     'skgpu_null_gl_sources': [
     ],
   },
 }