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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_io_surface.h"
      9 #include "ui/gl/gl_image_shm.h"
     10 #include "ui/gl/gl_image_stub.h"
     11 #include "ui/gl/gl_implementation.h"
     12 
     13 namespace gfx {
     14 
     15 scoped_refptr<GLImage> GLImage::CreateGLImage(gfx::PluginWindowHandle window) {
     16   TRACE_EVENT0("gpu", "GLImage::CreateGLImage");
     17   switch (GetGLImplementation()) {
     18     case kGLImplementationOSMesaGL:
     19     case kGLImplementationDesktopGL:
     20     case kGLImplementationAppleGL:
     21       return NULL;
     22     case kGLImplementationMockGL:
     23       return new GLImageStub;
     24     default:
     25       NOTREACHED();
     26       return NULL;
     27   }
     28 }
     29 
     30 scoped_refptr<GLImage> GLImage::CreateGLImageForGpuMemoryBuffer(
     31     gfx::GpuMemoryBufferHandle buffer,
     32     gfx::Size size,
     33     unsigned internalformat) {
     34   TRACE_EVENT0("gpu", "GLImage::CreateGLImageForGpuMemoryBuffer");
     35   switch (GetGLImplementation()) {
     36     case kGLImplementationOSMesaGL:
     37     case kGLImplementationDesktopGL:
     38     case kGLImplementationAppleGL:
     39       switch (buffer.type) {
     40         case SHARED_MEMORY_BUFFER: {
     41           scoped_refptr<GLImageShm> image(
     42               new GLImageShm(size, internalformat));
     43           if (!image->Initialize(buffer))
     44             return NULL;
     45 
     46           return image;
     47         }
     48         case IO_SURFACE_BUFFER: {
     49           scoped_refptr<GLImageIOSurface> image(new GLImageIOSurface(size));
     50           if (!image->Initialize(buffer))
     51             return NULL;
     52 
     53           return image;
     54         }
     55         default:
     56           NOTREACHED();
     57           return NULL;
     58       }
     59     case kGLImplementationMockGL:
     60       return new GLImageStub;
     61     default:
     62       NOTREACHED();
     63       return NULL;
     64   }
     65 }
     66 
     67 }  // namespace gfx
     68