gpu/command_buffer/client/gl_in_process_context.h

   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 #ifndef GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_
   6 #define GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_
   7
   8 #include "base/callback.h"
   9 #include "base/compiler_specific.h"
  10 #include "gles2_impl_export.h"
  11 #include "ui/gfx/native_widget_types.h"
  12 #include "ui/gl/gl_surface.h"
  13 #include "ui/gl/gpu_preference.h"
  14
  15 namespace gfx {
  16 class Size;
  17 }
  18
  19 #if defined(OS_ANDROID)
  20 namespace gfx {
  21 class SurfaceTexture;
  22 }
  23 #endif
  24
  25 namespace gpu {
  26
  27 namespace gles2 {
  28 class GLES2Implementation;
  29 }
  30
  31 // The default uninitialized value is -1.
  32 struct GLES2_IMPL_EXPORT GLInProcessContextAttribs {
  33   GLInProcessContextAttribs();
  34
  35   int32 alpha_size;
  36   int32 blue_size;
  37   int32 green_size;
  38   int32 red_size;
  39   int32 depth_size;
  40   int32 stencil_size;
  41   int32 samples;
  42   int32 sample_buffers;
  43   int32 fail_if_major_perf_caveat;
  44 };
  45
  46 class GLES2_IMPL_EXPORT GLInProcessContext {
  47  public:
  48   virtual ~GLInProcessContext() {}
  49
  50   // Create a GLInProcessContext, if |is_offscreen| is true, renders to an
  51   // offscreen context. |attrib_list| must be NULL or a NONE-terminated list
  52   // of attribute/value pairs.
  53   static GLInProcessContext* CreateContext(
  54       bool is_offscreen,
  55       gfx::AcceleratedWidget window,
  56       const gfx::Size& size,
  57       bool share_resources,
  58       const GLInProcessContextAttribs& attribs,
  59       gfx::GpuPreference gpu_preference);
  60
  61   // Create context with the provided GLSurface. All other arguments match
  62   // CreateContext factory above. Can only be called if the command buffer
  63   // service runs on the same thread as this client because GLSurface is not
  64   // thread safe.
  65   static GLInProcessContext* CreateWithSurface(
  66       scoped_refptr<gfx::GLSurface> surface,
  67       bool share_resources,
  68       const GLInProcessContextAttribs& attribs,
  69       gfx::GpuPreference gpu_preference);
  70
  71   virtual void SetContextLostCallback(const base::Closure& callback) = 0;
  72
  73   // Allows direct access to the GLES2 implementation so a GLInProcessContext
  74   // can be used without making it current.
  75   virtual gles2::GLES2Implementation* GetImplementation() = 0;
  76
  77 #if defined(OS_ANDROID)
  78   virtual scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture(
  79       uint32 stream_id) = 0;
  80 #endif
  81 };
  82
  83 }  // namespace gpu
  84
  85 #endif  // GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_