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 "gl_in_process_context_export.h" 11 #include "gpu/command_buffer/service/in_process_command_buffer.h" 12 #include "ui/gfx/native_widget_types.h" 13 #include "ui/gl/gl_surface.h" 14 #include "ui/gl/gpu_preference.h" 15 16 namespace gfx { 17 class Size; 18 } 19 20 #if defined(OS_ANDROID) 21 namespace gfx { 22 class SurfaceTexture; 23 } 24 #endif 25 26 namespace gpu { 27 28 namespace gles2 { 29 class GLES2Implementation; 30 } 31 32 // The default uninitialized value is -1. 33 struct GL_IN_PROCESS_CONTEXT_EXPORT GLInProcessContextAttribs { 34 GLInProcessContextAttribs(); 35 36 int32 alpha_size; 37 int32 blue_size; 38 int32 green_size; 39 int32 red_size; 40 int32 depth_size; 41 int32 stencil_size; 42 int32 samples; 43 int32 sample_buffers; 44 int32 fail_if_major_perf_caveat; 45 int32 lose_context_when_out_of_memory; 46 }; 47 48 class GL_IN_PROCESS_CONTEXT_EXPORT GLInProcessContext { 49 public: ~GLInProcessContext()50 virtual ~GLInProcessContext() {} 51 52 // Create a GLInProcessContext, if |is_offscreen| is true, renders to an 53 // offscreen context. |attrib_list| must be NULL or a NONE-terminated list 54 // of attribute/value pairs. 55 // If |surface| is not NULL, then it must match |is_offscreen| and |size|, 56 // |window| must be gfx::kNullAcceleratedWidget, and the command buffer 57 // service must run on the same thread as this client because GLSurface is 58 // not thread safe. If |surface| is NULL, then the other parameters are used 59 // to correctly create a surface. 60 // Only one of |share_context| and |use_global_share_group| can be used at 61 // the same time. 62 static GLInProcessContext* Create( 63 scoped_refptr<gpu::InProcessCommandBuffer::Service> service, 64 scoped_refptr<gfx::GLSurface> surface, 65 bool is_offscreen, 66 gfx::AcceleratedWidget window, 67 const gfx::Size& size, 68 GLInProcessContext* share_context, 69 bool use_global_share_group, 70 const GLInProcessContextAttribs& attribs, 71 gfx::GpuPreference gpu_preference); 72 73 virtual void SetContextLostCallback(const base::Closure& callback) = 0; 74 75 // Allows direct access to the GLES2 implementation so a GLInProcessContext 76 // can be used without making it current. 77 virtual gles2::GLES2Implementation* GetImplementation() = 0; 78 79 #if defined(OS_ANDROID) 80 virtual scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture( 81 uint32 stream_id) = 0; 82 #endif 83 }; 84 85 } // namespace gpu 86 87 #endif // GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_ 88