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 "gl_in_process_context_export.h"
  11 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
  12 #include "gpu/command_buffer/service/in_process_command_buffer.h"
  13 #include "ui/gfx/native_widget_types.h"
  14 #include "ui/gl/gl_surface.h"
  15 #include "ui/gl/gpu_preference.h"
  16
  17 namespace gfx {
  18 class Size;
  19 }
  20
  21 #if defined(OS_ANDROID)
  22 namespace gfx {
  23 class SurfaceTexture;
  24 }
  25 #endif
  26
  27 namespace gpu {
  28
  29 namespace gles2 {
  30 class GLES2Implementation;
  31 }
  32
  33 struct GL_IN_PROCESS_CONTEXT_EXPORT GLInProcessContextSharedMemoryLimits {
  34   GLInProcessContextSharedMemoryLimits();
  35
  36   int32 command_buffer_size;
  37   unsigned int start_transfer_buffer_size;
  38   unsigned int min_transfer_buffer_size;
  39   unsigned int max_transfer_buffer_size;
  40   unsigned int mapped_memory_reclaim_limit;
  41 };
  42
  43 class GL_IN_PROCESS_CONTEXT_EXPORT GLInProcessContext {
  44  public:
  45   virtual ~GLInProcessContext() {}
  46
  47   // Create a GLInProcessContext, if |is_offscreen| is true, renders to an
  48   // offscreen context. |attrib_list| must be NULL or a NONE-terminated list
  49   // of attribute/value pairs.
  50   // If |surface| is not NULL, then it must match |is_offscreen| and |size|,
  51   // |window| must be gfx::kNullAcceleratedWidget, and the command buffer
  52   // service must run on the same thread as this client because GLSurface is
  53   // not thread safe. If |surface| is NULL, then the other parameters are used
  54   // to correctly create a surface.
  55   // Only one of |share_context| and |use_global_share_group| can be used at
  56   // the same time.
  57   static GLInProcessContext* Create(
  58       scoped_refptr<gpu::InProcessCommandBuffer::Service> service,
  59       scoped_refptr<gfx::GLSurface> surface,
  60       bool is_offscreen,
  61       gfx::AcceleratedWidget window,
  62       const gfx::Size& size,
  63       GLInProcessContext* share_context,
  64       bool use_global_share_group,
  65       const gpu::gles2::ContextCreationAttribHelper& attribs,
  66       gfx::GpuPreference gpu_preference,
  67       const GLInProcessContextSharedMemoryLimits& memory_limits);
  68
  69   virtual void SetContextLostCallback(const base::Closure& callback) = 0;
  70
  71   // Allows direct access to the GLES2 implementation so a GLInProcessContext
  72   // can be used without making it current.
  73   virtual gles2::GLES2Implementation* GetImplementation() = 0;
  74
  75   virtual size_t GetMappedMemoryLimit() = 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_