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| 1 // Copyright (c) 2011 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 "chrome/renderer/pepper_platform_context_3d_impl.h" | |
| 6 | |
| 7 #include "chrome/renderer/render_thread.h" | |
| 8 #include "content/renderer/command_buffer_proxy.h" | |
| 9 #include "content/renderer/ggl.h" | |
| 10 #include "content/renderer/gpu_channel_host.h" | |
| 11 #include "gpu/command_buffer/client/gles2_cmd_helper.h" | |
| 12 #include "gpu/command_buffer/client/gles2_implementation.h" | |
| 13 | |
| 14 #ifdef ENABLE_GPU | |
| 15 PlatformContext3DImpl::PlatformContext3DImpl(ggl::Context* parent_context) | |
| 16 : parent_context_(ggl::GetWeakContextReference(parent_context)), | |
| 17 parent_texture_id_(0), | |
| 18 command_buffer_(NULL), | |
| 19 callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) { | |
| 20 } | |
| 21 | |
| 22 PlatformContext3DImpl::~PlatformContext3DImpl() { | |
| 23 if (command_buffer_) { | |
| 24 DCHECK(channel_.get()); | |
| 25 channel_->DestroyCommandBuffer(command_buffer_); | |
| 26 command_buffer_ = NULL; | |
| 27 } | |
| 28 | |
| 29 channel_ = NULL; | |
| 30 | |
| 31 if (parent_context_.get() && parent_texture_id_ != 0) { | |
| 32 ggl::GetImplementation(parent_context_)->FreeTextureId(parent_texture_id_); | |
| 33 } | |
| 34 | |
| 35 } | |
| 36 | |
| 37 bool PlatformContext3DImpl::Init() { | |
| 38 // Ignore initializing more than once. | |
| 39 if (command_buffer_) | |
| 40 return true; | |
| 41 | |
| 42 // Parent may already have been deleted. | |
| 43 if (!parent_context_.get()) | |
| 44 return false; | |
| 45 | |
| 46 RenderThread* render_thread = RenderThread::current(); | |
| 47 if (!render_thread) | |
| 48 return false; | |
| 49 | |
| 50 channel_ = render_thread->GetGpuChannel(); | |
| 51 if (!channel_.get()) | |
| 52 return false; | |
| 53 | |
| 54 DCHECK(channel_->state() == GpuChannelHost::kConnected); | |
| 55 | |
| 56 // Flush any remaining commands in the parent context to make sure the | |
| 57 // texture id accounting stays consistent. | |
| 58 gpu::gles2::GLES2Implementation* parent_gles2 = | |
| 59 ggl::GetImplementation(parent_context_); | |
| 60 parent_gles2->helper()->CommandBufferHelper::Finish(); | |
| 61 parent_texture_id_ = parent_gles2->MakeTextureId(); | |
| 62 | |
| 63 // TODO(apatrick): Let Pepper plugins configure their back buffer surface. | |
| 64 static const int32 kAttribs[] = { | |
| 65 ggl::GGL_ALPHA_SIZE, 8, | |
| 66 ggl::GGL_DEPTH_SIZE, 24, | |
| 67 ggl::GGL_STENCIL_SIZE, 8, | |
| 68 ggl::GGL_SAMPLES, 0, | |
| 69 ggl::GGL_SAMPLE_BUFFERS, 0, | |
| 70 ggl::GGL_NONE, | |
| 71 }; | |
| 72 std::vector<int32> attribs(kAttribs, kAttribs + ARRAYSIZE_UNSAFE(kAttribs)); | |
| 73 CommandBufferProxy* parent_command_buffer = | |
| 74 ggl::GetCommandBufferProxy(parent_context_); | |
| 75 command_buffer_ = channel_->CreateOffscreenCommandBuffer( | |
| 76 parent_command_buffer, | |
| 77 gfx::Size(1, 1), | |
| 78 "*", | |
| 79 attribs, | |
| 80 parent_texture_id_); | |
| 81 if (!command_buffer_) | |
| 82 return false; | |
| 83 command_buffer_->SetChannelErrorCallback(callback_factory_.NewCallback( | |
| 84 &PlatformContext3DImpl::OnContextLost)); | |
| 85 | |
| 86 return true; | |
| 87 } | |
| 88 | |
| 89 void PlatformContext3DImpl::SetSwapBuffersCallback(Callback0::Type* callback) { | |
| 90 DCHECK(command_buffer_); | |
| 91 command_buffer_->SetSwapBuffersCallback(callback); | |
| 92 } | |
| 93 | |
| 94 unsigned PlatformContext3DImpl::GetBackingTextureId() { | |
| 95 DCHECK(command_buffer_); | |
| 96 return parent_texture_id_; | |
| 97 } | |
| 98 | |
| 99 gpu::CommandBuffer* PlatformContext3DImpl::GetCommandBuffer() { | |
| 100 return command_buffer_; | |
| 101 } | |
| 102 | |
| 103 void PlatformContext3DImpl::SetContextLostCallback(Callback0::Type* callback) { | |
| 104 context_lost_callback_.reset(callback); | |
| 105 } | |
| 106 | |
| 107 void PlatformContext3DImpl::OnContextLost() { | |
| 108 DCHECK(command_buffer_); | |
| 109 | |
| 110 if (context_lost_callback_.get()) | |
| 111 context_lost_callback_->Run(); | |
| 112 } | |
| 113 | |
| 114 #endif // ENABLE_GPU | |
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Chromium Code Reviews
Issue 6685072:
Move a bunch more random files from chrome\renderer to content\renderer. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/