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| 1 // Copyright (c) 2010 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/client/gles2_cmd_helper.h" | |
| 6 #include "gpu/command_buffer/client/gles2_implementation.h" | |
| 7 #include "gpu/command_buffer/client/gles2_lib.h" | |
| 8 #include "gpu/pgl/command_buffer_pepper.h" | |
| 9 #include "gpu/pgl/pgl.h" | |
| 10 | |
| 11 #if defined(_MSC_VER) | |
| 12 #define THREAD_LOCAL __declspec(thread) | |
| 13 #else | |
| 14 #define THREAD_LOCAL __thread | |
| 15 #endif | |
| 16 | |
| 17 namespace { | |
| 18 const int32 kTransferBufferSize = 512 * 1024; | |
| 19 | |
| 20 class PGLContextImpl { | |
| 21 public: | |
| 22 PGLContextImpl(NPP npp, | |
| 23 NPDevice* device, | |
| 24 NPDeviceContext3D* device_context); | |
| 25 ~PGLContextImpl(); | |
| 26 | |
| 27 // Initlaize a PGL context with a transfer buffer of a particular size. | |
| 28 bool Initialize(int32 transfer_buffer_size); | |
| 29 | |
| 30 // Destroy all resources associated with the PGL context. | |
| 31 void Destroy(); | |
| 32 | |
| 33 // Make a PGL context current for the calling thread. | |
| 34 static bool MakeCurrent(PGLContextImpl* pgl_context); | |
| 35 | |
| 36 // Display all content rendered since last call to SwapBuffers. | |
| 37 bool SwapBuffers(); | |
| 38 | |
| 39 private: | |
| 40 PGLContextImpl(const PGLContextImpl&); | |
| 41 void operator=(const PGLContextImpl&); | |
| 42 | |
| 43 NPP npp_; | |
| 44 NPDevice* device_; | |
| 45 NPDeviceContext3D* device_context_; | |
| 46 CommandBufferPepper* command_buffer_; | |
| 47 gpu::gles2::GLES2CmdHelper* gles2_helper_; | |
| 48 int32 transfer_buffer_id_; | |
| 49 gpu::gles2::GLES2Implementation* gles2_implementation_; | |
| 50 }; | |
| 51 | |
| 52 THREAD_LOCAL PGLContextImpl* g_current_pgl_context; | |
| 53 | |
| 54 PGLContextImpl::PGLContextImpl(NPP npp, | |
| 55 NPDevice* device, | |
| 56 NPDeviceContext3D* device_context) | |
| 57 : npp_(npp), | |
| 58 device_(device), | |
| 59 device_context_(device_context), | |
| 60 command_buffer_(NULL), | |
| 61 gles2_helper_(NULL), | |
| 62 transfer_buffer_id_(0), | |
| 63 gles2_implementation_(NULL) { | |
| 64 } | |
| 65 | |
| 66 PGLContextImpl::~PGLContextImpl() { | |
| 67 Destroy(); | |
| 68 } | |
| 69 | |
| 70 bool PGLContextImpl::Initialize(int32 transfer_buffer_size) { | |
| 71 // Create and initialize the objects required to issue GLES2 calls. | |
| 72 command_buffer_ = new CommandBufferPepper( | |
| 73 npp_, device_, device_context_); | |
| 74 gles2_helper_ = new gpu::gles2::GLES2CmdHelper(command_buffer_); | |
| 75 if (gles2_helper_->Initialize()) { | |
| 76 transfer_buffer_id_ = | |
| 77 command_buffer_->CreateTransferBuffer(kTransferBufferSize); | |
| 78 gpu::Buffer transfer_buffer = | |
| 79 command_buffer_->GetTransferBuffer(transfer_buffer_id_); | |
| 80 if (transfer_buffer.ptr) { | |
| 81 gles2_implementation_ = new gpu::gles2::GLES2Implementation( | |
| 82 gles2_helper_, | |
| 83 transfer_buffer.size, | |
| 84 transfer_buffer.ptr, | |
| 85 transfer_buffer_id_); | |
| 86 return true; | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 // Tear everything down if initialization failed. | |
| 91 Destroy(); | |
| 92 return false; | |
| 93 } | |
| 94 | |
| 95 void PGLContextImpl::Destroy() { | |
| 96 delete gles2_implementation_; | |
| 97 gles2_implementation_ = NULL; | |
| 98 | |
| 99 if (command_buffer_ && transfer_buffer_id_ != 0) { | |
| 100 command_buffer_->DestroyTransferBuffer(transfer_buffer_id_); | |
| 101 transfer_buffer_id_ = 0; | |
| 102 } | |
| 103 | |
| 104 delete gles2_helper_; | |
| 105 gles2_helper_ = NULL; | |
| 106 | |
| 107 delete command_buffer_; | |
| 108 command_buffer_ = NULL; | |
| 109 } | |
| 110 | |
| 111 bool PGLContextImpl::MakeCurrent(PGLContextImpl* pgl_context) { | |
| 112 g_current_pgl_context = pgl_context; | |
| 113 if (pgl_context) | |
| 114 gles2::g_gl_impl = pgl_context->gles2_implementation_; | |
| 115 else | |
| 116 gles2::g_gl_impl = NULL; | |
| 117 | |
| 118 return true; | |
| 119 } | |
| 120 | |
| 121 bool PGLContextImpl::SwapBuffers() { | |
| 122 gles2_implementation_->SwapBuffers(); | |
| 123 return true; | |
| 124 } | |
| 125 } // namespace anonymous | |
| 126 | |
| 127 extern "C" { | |
| 128 | |
| 129 PGLContext pglCreateContext(NPP npp, | |
| 130 NPDevice* device, | |
| 131 NPDeviceContext3D* device_context) { | |
| 132 PGLContextImpl* pgl_context = new PGLContextImpl( | |
| 133 npp, device, device_context); | |
| 134 if (pgl_context->Initialize(kTransferBufferSize)) { | |
| 135 return pgl_context; | |
| 136 } | |
| 137 | |
| 138 delete pgl_context; | |
| 139 return NULL; | |
| 140 } | |
| 141 | |
| 142 PGLBoolean pglMakeCurrent(PGLContext pgl_context) { | |
| 143 return PGLContextImpl::MakeCurrent(static_cast<PGLContextImpl*>(pgl_context)); | |
| 144 } | |
| 145 | |
| 146 PGLBoolean pglSwapBuffers() { | |
| 147 if (!g_current_pgl_context) | |
| 148 return false; | |
| 149 | |
| 150 return g_current_pgl_context->SwapBuffers(); | |
| 151 } | |
| 152 | |
| 153 PGLBoolean pglDestroyContext(PGLContext pgl_context) { | |
| 154 if (!pgl_context) | |
| 155 return false; | |
| 156 | |
| 157 delete pgl_context; | |
| 158 return true; | |
| 159 } | |
| 160 | |
| 161 } // extern "C" | |
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Chromium Code Reviews
Issue 550048:
Revert 36268 - Implemented PGL library, an EGL like API for Pepper. Updated P... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/