Home | History | Annotate | Download | only in client 
      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 SurfaceTextureBridge;
     22 }
     23 #endif
     24 
     25 namespace gpu {
     26 
     27 namespace gles2 {
     28 class GLES2Implementation;
     29 }
     30 
     31 class GpuMemoryBufferFactory;
     32 
     33 // The default uninitialized value is -1.
     34 struct GLES2_IMPL_EXPORT GLInProcessContextAttribs {
     35   GLInProcessContextAttribs();
     36 
     37   int32 alpha_size;
     38   int32 blue_size;
     39   int32 green_size;
     40   int32 red_size;
     41   int32 depth_size;
     42   int32 stencil_size;
     43   int32 samples;
     44   int32 sample_buffers;
     45 };
     46 
     47 class GLES2_IMPL_EXPORT GLInProcessContext {
     48  public:
     49   virtual ~GLInProcessContext() {}
     50 
     51   // Must be called before any GLInProcessContext instances are created.
     52   static void SetGpuMemoryBufferFactory(GpuMemoryBufferFactory* factory);
     53 
     54   // Create a GLInProcessContext, if |is_offscreen| is true, renders to an
     55   // offscreen context. |attrib_list| must be NULL or a NONE-terminated list
     56   // of attribute/value pairs.
     57   static GLInProcessContext* CreateContext(
     58       bool is_offscreen,
     59       gfx::AcceleratedWidget window,
     60       const gfx::Size& size,
     61       bool share_resources,
     62       const char* allowed_extensions,
     63       const GLInProcessContextAttribs& attribs,
     64       gfx::GpuPreference gpu_preference);
     65 
     66   // Create context with the provided GLSurface. All other arguments match
     67   // CreateContext factory above. Can only be called if the command buffer
     68   // service runs on the same thread as this client because GLSurface is not
     69   // thread safe.
     70   static GLInProcessContext* CreateWithSurface(
     71       scoped_refptr<gfx::GLSurface> surface,
     72       bool share_resources,
     73       const char* allowed_extensions,
     74       const GLInProcessContextAttribs& attribs,
     75       gfx::GpuPreference gpu_preference);
     76 
     77   virtual void SetContextLostCallback(const base::Closure& callback) = 0;
     78 
     79   virtual void SignalSyncPoint(unsigned sync_point,
     80                                const base::Closure& callback) = 0;
     81 
     82   virtual void SignalQuery(unsigned query, const base::Closure& callback) = 0;
     83 
     84   // Allows direct access to the GLES2 implementation so a GLInProcessContext
     85   // can be used without making it current.
     86   virtual gles2::GLES2Implementation* GetImplementation() = 0;
     87 
     88 #if defined(OS_ANDROID)
     89   virtual scoped_refptr<gfx::SurfaceTextureBridge> GetSurfaceTexture(
     90       uint32 stream_id) = 0;
     91 #endif
     92 };
     93 
     94 }  // namespace gpu
     95 
     96 #endif  // GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_
     97