src/gpu/command_buffer/service/stream_texture_manager_in_process_android.cc

   1 // Copyright 2013 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 #include "gpu/command_buffer/service/stream_texture_manager_in_process_android.h"
   6
   7 #include "base/bind.h"
   8 #include "ui/gfx/size.h"
   9 #include "ui/gl/android/surface_texture.h"
  10 #include "ui/gl/gl_bindings.h"
  11
  12 namespace gpu {
  13
  14 StreamTextureManagerInProcess::StreamTextureImpl::StreamTextureImpl(
  15     uint32 service_id,
  16     uint32 stream_id)
  17     : surface_texture_(new gfx::SurfaceTexture(service_id)),
  18       stream_id_(stream_id) {}
  19
  20 StreamTextureManagerInProcess::StreamTextureImpl::~StreamTextureImpl() {}
  21
  22 void StreamTextureManagerInProcess::StreamTextureImpl::Update() {
  23   GLint texture_id = 0;
  24   glGetIntegerv(GL_TEXTURE_BINDING_EXTERNAL_OES, &texture_id);
  25   surface_texture_->UpdateTexImage();
  26   glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture_id);
  27 }
  28
  29 gfx::Size StreamTextureManagerInProcess::StreamTextureImpl::GetSize() {
  30   return size_;
  31 }
  32
  33 void StreamTextureManagerInProcess::StreamTextureImpl::SetSize(gfx::Size size) {
  34   size_ = size;
  35 }
  36
  37 scoped_refptr<gfx::SurfaceTexture>
  38 StreamTextureManagerInProcess::StreamTextureImpl::GetSurfaceTexture() {
  39   return surface_texture_;
  40 }
  41
  42 StreamTextureManagerInProcess::StreamTextureManagerInProcess() : next_id_(1) {}
  43
  44 StreamTextureManagerInProcess::~StreamTextureManagerInProcess() {
  45   if (!textures_.empty()) {
  46     LOG(WARNING) << "Undestroyed surface textures while tearing down "
  47                     "StreamTextureManager.";
  48   }
  49 }
  50
  51 GLuint StreamTextureManagerInProcess::CreateStreamTexture(uint32 service_id,
  52                                                           uint32 client_id) {
  53   base::AutoLock lock(map_lock_);
  54   uint32 stream_id = next_id_++;
  55   linked_ptr<StreamTextureImpl> texture(
  56       new StreamTextureImpl(service_id, stream_id));
  57   textures_[service_id] = texture;
  58
  59   if (next_id_ == 0)
  60     next_id_++;
  61
  62   return stream_id;
  63 }
  64
  65 void StreamTextureManagerInProcess::DestroyStreamTexture(uint32 service_id) {
  66   base::AutoLock lock(map_lock_);
  67   textures_.erase(service_id);
  68 }
  69
  70 gpu::StreamTexture* StreamTextureManagerInProcess::LookupStreamTexture(
  71     uint32 service_id) {
  72   base::AutoLock lock(map_lock_);
  73   TextureMap::const_iterator it = textures_.find(service_id);
  74   if (it != textures_.end())
  75     return it->second.get();
  76
  77   return NULL;
  78 }
  79
  80 scoped_refptr<gfx::SurfaceTexture>
  81 StreamTextureManagerInProcess::GetSurfaceTexture(uint32 stream_id) {
  82   base::AutoLock lock(map_lock_);
  83   for (TextureMap::iterator it = textures_.begin(); it != textures_.end();
  84        it++) {
  85     if (it->second->stream_id() == stream_id)
  86       return it->second->GetSurfaceTexture();
  87   }
  88
  89   return NULL;
  90 }
  91
  92 }  // namespace gpu