gpu/command_buffer/service/mailbox_manager.h

   1 // Copyright 2014 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_SERVICE_MAILBOX_MANAGER_H_
   6 #define GPU_COMMAND_BUFFER_SERVICE_MAILBOX_MANAGER_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "gpu/command_buffer/common/mailbox.h"
  10 #include "gpu/gpu_export.h"
  11
  12 namespace gpu {
  13 namespace gles2 {
  14
  15 class Texture;
  16
  17 // Manages resources scoped beyond the context or context group level.
  18 class GPU_EXPORT MailboxManager : public base::RefCounted<MailboxManager> {
  19  public:
  20   // Look up the texture definition from the named mailbox.
  21   virtual Texture* ConsumeTexture(const Mailbox& mailbox) = 0;
  22
  23   // Put the texture into the named mailbox.
  24   virtual void ProduceTexture(const Mailbox& mailbox, Texture* texture) = 0;
  25
  26   // If |true| then Pull/PushTextureUpdates() needs to be called.
  27   virtual bool UsesSync() = 0;
  28
  29   // Used to synchronize texture state across share groups.
  30   virtual void PushTextureUpdates(uint32 sync_point) = 0;
  31   virtual void PullTextureUpdates(uint32 sync_point) = 0;
  32
  33   // Destroy any mailbox that reference the given texture.
  34   virtual void TextureDeleted(Texture* texture) = 0;
  35
  36  protected:
  37   MailboxManager() {}
  38   virtual ~MailboxManager() {}
  39
  40  private:
  41   friend class base::RefCounted<MailboxManager>;
  42
  43   DISALLOW_COPY_AND_ASSIGN(MailboxManager);
  44 };
  45
  46 }  // namespage gles2
  47 }  // namespace gpu
  48
  49 #endif  // GPU_COMMAND_BUFFER_SERVICE_MAILBOX_MANAGER_H_
  50