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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ui/gl/gl_image.h"
      6 
      7 #include "base/debug/trace_event.h"
      8 #include "ui/gl/gl_image_shm.h"
      9 #include "ui/gl/gl_image_stub.h"
     10 #include "ui/gl/gl_implementation.h"
     11 
     12 namespace gfx {
     13 
     14 scoped_refptr<GLImage> GLImage::CreateGLImage(gfx::PluginWindowHandle window) {
     15   TRACE_EVENT0("gpu", "GLImage::CreateGLImage");
     16   switch (GetGLImplementation()) {
     17     case kGLImplementationOSMesaGL:
     18     case kGLImplementationDesktopGL:
     19     case kGLImplementationEGLGLES2:
     20       return NULL;
     21     case kGLImplementationMockGL:
     22       return new GLImageStub;
     23     default:
     24       NOTREACHED();
     25       return NULL;
     26   }
     27 }
     28 
     29 scoped_refptr<GLImage> GLImage::CreateGLImageForGpuMemoryBuffer(
     30     gfx::GpuMemoryBufferHandle buffer,
     31     gfx::Size size,
     32     unsigned internalformat) {
     33   TRACE_EVENT0("gpu", "GLImage::CreateGLImageForGpuMemoryBuffer");
     34   switch (GetGLImplementation()) {
     35     case kGLImplementationOSMesaGL:
     36     case kGLImplementationDesktopGL:
     37     case kGLImplementationEGLGLES2:
     38       switch (buffer.type) {
     39         case SHARED_MEMORY_BUFFER: {
     40           scoped_refptr<GLImageShm> image(
     41               new GLImageShm(size, internalformat));
     42           if (!image->Initialize(buffer))
     43             return NULL;
     44 
     45           return image;
     46         }
     47         default:
     48           NOTREACHED();
     49           return NULL;
     50       }
     51     case kGLImplementationMockGL:
     52       return new GLImageStub;
     53     default:
     54       NOTREACHED();
     55       return NULL;
     56   }
     57 }
     58 
     59 }  // namespace gfx
     60