Change CHROMIUM_image declarations to support multi planar input.

gpu/command_buffer/service/image_factory.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/image_factory.h"
 
 #include "gpu/command_buffer/common/capabilities.h"
 #include "ui/gl/gl_bindings.h"
 
 namespace gpu {
 
 ImageFactory::ImageFactory() {
 }
 
 ImageFactory::~ImageFactory() {
 }
 
 // static
+bool ImageFactory::IsImageFormatSupported(unsigned internalformat) {
+  switch (internalformat) {
+    case GL_RGB:
+    case GL_RGBA:
+    case GL_ATC_RGB_AMD:
+    case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD:
+    case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+    case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+    case GL_ETC1_RGB8_OES:
+      return true;
+    default:
+      NOTREACHED();
+      return false;
+  }
+}
+
+// static
+size_t ImageFactory::NumberOfPlanesForImageFormat(unsigned internalformat) {
+  switch (internalformat) {
+    case GL_RGB:
+    case GL_RGBA:
+    case GL_ATC_RGB_AMD:
+    case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD:
+    case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+    case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+    case GL_ETC1_RGB8_OES:
+      return 1;
+    default:
+      NOTREACHED();
+      return 0;
+  }
+}
+
+// static
 gfx::GpuMemoryBuffer::Format ImageFactory::ImageFormatToGpuMemoryBufferFormat(
-    unsigned internalformat) {
+    unsigned internalformat,
+    size_t plane) {
+  DCHECK_EQ(plane, 0u);
   switch (internalformat) {
     case GL_RGB:
-      return gfx::GpuMemoryBuffer::RGBX_8888;
     case GL_RGBA:
       return gfx::GpuMemoryBuffer::RGBA_8888;
     case GL_ATC_RGB_AMD:
       return gfx::GpuMemoryBuffer::ATC;
     case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD:
       return gfx::GpuMemoryBuffer::ATCIA;
     case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
       return gfx::GpuMemoryBuffer::DXT1;
     case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
       return gfx::GpuMemoryBuffer::DXT5;
@@ skipping 15 matching lines @@
       return gfx::GpuMemoryBuffer::SCANOUT;
     default:
       NOTREACHED();
       return gfx::GpuMemoryBuffer::MAP;
   }
 }
 
 // static
 bool ImageFactory::IsImageFormatCompatibleWithGpuMemoryBufferFormat(
     unsigned internalformat,
+    size_t plane,
     gfx::GpuMemoryBuffer::Format format) {
+  DCHECK_EQ(plane, 0u);
   switch (internalformat) {
     case GL_RGB:
       switch (format) {
         case gfx::GpuMemoryBuffer::ATC:
         case gfx::GpuMemoryBuffer::ATCIA:
         case gfx::GpuMemoryBuffer::DXT1:
         case gfx::GpuMemoryBuffer::DXT5:
         case gfx::GpuMemoryBuffer::ETC1:
         case gfx::GpuMemoryBuffer::RGBX_8888:
           return true;
         case gfx::GpuMemoryBuffer::RGBA_8888:
         case gfx::GpuMemoryBuffer::BGRA_8888:
           return false;
       }
-      NOTREACHED();
-      return false;
     case GL_RGBA:
       switch (format) {
         case gfx::GpuMemoryBuffer::RGBX_8888:
           return false;
         case gfx::GpuMemoryBuffer::ATC:
         case gfx::GpuMemoryBuffer::ATCIA:
         case gfx::GpuMemoryBuffer::DXT1:
         case gfx::GpuMemoryBuffer::DXT5:
         case gfx::GpuMemoryBuffer::ETC1:
         case gfx::GpuMemoryBuffer::RGBA_8888:
         case gfx::GpuMemoryBuffer::BGRA_8888:
           return true;
       }
-      NOTREACHED();
-      return false;
     default:
       NOTREACHED();
       return false;
   }
 }
 
 // static
 bool ImageFactory::IsGpuMemoryBufferFormatSupported(
     gfx::GpuMemoryBuffer::Format format,
     const gpu::Capabilities& capabilities) {
@@ skipping 35 matching lines @@
     case gfx::GpuMemoryBuffer::BGRA_8888:
     case gfx::GpuMemoryBuffer::RGBX_8888:
       return true;
   }
 
   NOTREACHED();
   return false;
 }
 
 }  // namespace gpu