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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 "ppapi/shared_impl/graphics_3d_impl.h" | |
| 6 | |
| 7 #include "gpu/command_buffer/client/gles2_cmd_helper.h" | |
| 8 #include "gpu/command_buffer/client/gles2_implementation.h" | |
| 9 #include "ppapi/c/pp_errors.h" | |
| 10 | |
| 11 namespace ppapi { | |
| 12 | |
| 13 Graphics3DImpl::Graphics3DImpl() | |
| 14 : transfer_buffer_id_(-1), | |
| 15 swap_callback_(PP_BlockUntilComplete()) { | |
| 16 } | |
| 17 | |
| 18 Graphics3DImpl::~Graphics3DImpl() { | |
| 19 // Make sure that GLES2 implementation has already been destroyed. | |
| 20 DCHECK_EQ(transfer_buffer_id_, -1); | |
| 21 DCHECK(!gles2_helper_.get()); | |
| 22 DCHECK(!gles2_impl_.get()); | |
| 23 } | |
| 24 | |
| 25 int32_t Graphics3DImpl::GetAttribs(int32_t* attrib_list) { | |
| 26 // TODO(alokp): Implement me. | |
| 27 return PP_ERROR_FAILED; | |
| 28 } | |
| 29 | |
| 30 int32_t Graphics3DImpl::SetAttribs(int32_t* attrib_list) { | |
| 31 // TODO(alokp): Implement me. | |
| 32 return PP_ERROR_FAILED; | |
| 33 } | |
| 34 | |
| 35 int32_t Graphics3DImpl::SwapBuffers(PP_CompletionCallback callback) { | |
| 36 if (!callback.func) { | |
| 37 // Blocking SwapBuffers isn't supported (since we have to be on the main | |
| 38 // thread). | |
| 39 return PP_ERROR_BADARGUMENT; | |
| 40 } | |
| 41 | |
| 42 if (HasPendingSwap()) { | |
| 43 // Already a pending SwapBuffers that hasn't returned yet. | |
| 44 return PP_ERROR_INPROGRESS; | |
| 45 } | |
| 46 | |
| 47 swap_callback_ = callback; | |
| 48 return DoSwapBuffers(); | |
| 49 } | |
| 50 | |
| 51 void Graphics3DImpl::SwapBuffersACK(int32_t pp_error) { | |
| 52 DCHECK(HasPendingSwap()); | |
| 53 PP_RunAndClearCompletionCallback(&swap_callback_, pp_error); | |
| 54 } | |
| 55 | |
| 56 bool Graphics3DImpl::CreateGLES2Impl(int32 command_buffer_size, | |
| 57 int32 transfer_buffer_size) { | |
| 58 gpu::CommandBuffer* command_buffer = GetCommandBuffer(); | |
| 59 DCHECK(command_buffer); | |
| 60 | |
| 61 // Create the GLES2 helper, which writes the command buffer protocol. | |
| 62 gles2_helper_.reset(new gpu::gles2::GLES2CmdHelper(command_buffer)); | |
| 63 if (!gles2_helper_->Initialize(command_buffer_size)) | |
| 64 return false; | |
| 65 | |
| 66 // Create a transfer buffer used to copy resources between the renderer | |
| 67 // process and the GPU process. | |
| 68 transfer_buffer_id_ = | |
| 69 command_buffer->CreateTransferBuffer(transfer_buffer_size, -1); | |
| 70 if (transfer_buffer_id_ < 0) | |
| 71 return false; | |
| 72 | |
| 73 // Map the buffer into the renderer process's address space. | |
| 74 gpu::Buffer transfer_buffer = | |
| 75 command_buffer->GetTransferBuffer(transfer_buffer_id_); | |
| 76 if (!transfer_buffer.ptr) | |
| 77 return false; | |
| 78 | |
| 79 // Create the object exposing the OpenGL API. | |
| 80 gles2_impl_.reset(new gpu::gles2::GLES2Implementation( | |
| 81 gles2_helper_.get(), | |
| 82 transfer_buffer.size, | |
| 83 transfer_buffer.ptr, | |
| 84 transfer_buffer_id_, | |
| 85 false)); | |
| 86 | |
| 87 return true; | |
| 88 } | |
| 89 | |
| 90 void Graphics3DImpl::DestroyGLES2Impl() { | |
| 91 gles2_impl_.reset(); | |
| 92 | |
| 93 if (transfer_buffer_id_ != -1) { | |
| 94 gpu::CommandBuffer* command_buffer = GetCommandBuffer(); | |
| 95 DCHECK(command_buffer); | |
| 96 command_buffer->DestroyTransferBuffer(transfer_buffer_id_); | |
| 97 transfer_buffer_id_ = -1; | |
| 98 } | |
| 99 | |
| 100 gles2_helper_.reset(); | |
| 101 } | |
| 102 | |
| 103 } // namespace ppapi | |
| 104 | |
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Chromium Code Reviews
Issue 7398033:
Revert 92885 - Completed the implementation for PPB_Graphics3D interface. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/