gpu/command_buffer/common/mailbox_holder.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_MAILBOX_HOLDER_H_
   6 #define GPU_COMMAND_BUFFER_MAILBOX_HOLDER_H_
   7
   8 #include <stdint.h>
   9 #include <string.h>
  10
  11 #include "gpu/command_buffer/common/mailbox.h"
  12 #include "gpu/gpu_export.h"
  13
  14 namespace gpu {
  15
  16 // A MailboxHolder is a mechanism by which texture image data produced by one
  17 // context can be consumed by another. The |sync_point| is used to allow one
  18 // context to wait until another has finished using the texture before it begins
  19 // using the texture. When the mailbox is backed by a GPU texture, the
  20 // |texture_target| is that texture's type.
  21 // See here for OpenGL texture types:
  22 // https://www.opengl.org/wiki/Texture#Texture_Objects
  23 struct GPU_EXPORT MailboxHolder {
  24   MailboxHolder();
  25   MailboxHolder(const gpu::Mailbox& mailbox,
  26                 uint32_t texture_target,
  27                 uint32_t sync_point);
  28   gpu::Mailbox mailbox;
  29   uint32_t texture_target;
  30   uint32_t sync_point;
  31 };
  32
  33 }  // namespace gpu
  34
  35 #endif  // GPU_COMMAND_BUFFER_MAILBOX_HOLDER_H_