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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "gpu/command_buffer/service/vertex_attrib_manager.h" | 5 #include "gpu/command_buffer/service/vertex_attrib_manager.h" |
| 6 | 6 |
| 7 #include <stdint.h> |
| 8 |
| 7 #include <list> | 9 #include <list> |
| 8 | 10 |
| 9 #include "base/logging.h" | 11 #include "base/logging.h" |
| 10 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
| 11 #include "base/strings/string_number_conversions.h" | 13 #include "base/strings/string_number_conversions.h" |
| 12 #include "build/build_config.h" | 14 #include "build/build_config.h" |
| 13 #define GLES2_GPU_SERVICE 1 | 15 #define GLES2_GPU_SERVICE 1 |
| 14 #include "gpu/command_buffer/common/gles2_cmd_format.h" | 16 #include "gpu/command_buffer/common/gles2_cmd_format.h" |
| 15 #include "gpu/command_buffer/common/gles2_cmd_utils.h" | 17 #include "gpu/command_buffer/common/gles2_cmd_utils.h" |
| 16 #include "gpu/command_buffer/service/buffer_manager.h" | 18 #include "gpu/command_buffer/service/buffer_manager.h" |
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| 77 if (!buffer_.get() || buffer_->IsDeleted()) { | 79 if (!buffer_.get() || buffer_->IsDeleted()) { |
| 78 return false; | 80 return false; |
| 79 } | 81 } |
| 80 | 82 |
| 81 // The number of elements that can be accessed. | 83 // The number of elements that can be accessed. |
| 82 GLsizeiptr buffer_size = buffer_->size(); | 84 GLsizeiptr buffer_size = buffer_->size(); |
| 83 if (offset_ > buffer_size || real_stride_ == 0) { | 85 if (offset_ > buffer_size || real_stride_ == 0) { |
| 84 return false; | 86 return false; |
| 85 } | 87 } |
| 86 | 88 |
| 87 uint32 usable_size = buffer_size - offset_; | 89 uint32_t usable_size = buffer_size - offset_; |
| 88 GLuint num_elements = usable_size / real_stride_ + | 90 GLuint num_elements = usable_size / real_stride_ + |
| 89 ((usable_size % real_stride_) >= | 91 ((usable_size % real_stride_) >= |
| 90 (GLES2Util::GetGLTypeSizeForTexturesAndBuffers(type_) * size_) ? 1 : 0); | 92 (GLES2Util::GetGLTypeSizeForTexturesAndBuffers(type_) * size_) ? 1 : 0); |
| 91 return index < num_elements; | 93 return index < num_elements; |
| 92 } | 94 } |
| 93 | 95 |
| 94 VertexAttribManager::VertexAttribManager() | 96 VertexAttribManager::VertexAttribManager() |
| 95 : num_fixed_attribs_(0), | 97 : num_fixed_attribs_(0), |
| 96 element_array_buffer_(NULL), | 98 element_array_buffer_(NULL), |
| 97 manager_(NULL), | 99 manager_(NULL), |
| 98 deleted_(false), | 100 deleted_(false), |
| 99 service_id_(0) { | 101 service_id_(0) { |
| 100 } | 102 } |
| 101 | 103 |
| 102 VertexAttribManager::VertexAttribManager( | 104 VertexAttribManager::VertexAttribManager(VertexArrayManager* manager, |
| 103 VertexArrayManager* manager, GLuint service_id, uint32 num_vertex_attribs) | 105 GLuint service_id, |
| 106 uint32_t num_vertex_attribs) |
| 104 : num_fixed_attribs_(0), | 107 : num_fixed_attribs_(0), |
| 105 element_array_buffer_(NULL), | 108 element_array_buffer_(NULL), |
| 106 manager_(manager), | 109 manager_(manager), |
| 107 deleted_(false), | 110 deleted_(false), |
| 108 service_id_(service_id) { | 111 service_id_(service_id) { |
| 109 manager_->StartTracking(this); | 112 manager_->StartTracking(this); |
| 110 Initialize(num_vertex_attribs, false); | 113 Initialize(num_vertex_attribs, false); |
| 111 } | 114 } |
| 112 | 115 |
| 113 VertexAttribManager::~VertexAttribManager() { | 116 VertexAttribManager::~VertexAttribManager() { |
| 114 if (manager_) { | 117 if (manager_) { |
| 115 if (manager_->have_context_) { | 118 if (manager_->have_context_) { |
| 116 if (service_id_ != 0) // 0 indicates an emulated VAO | 119 if (service_id_ != 0) // 0 indicates an emulated VAO |
| 117 glDeleteVertexArraysOES(1, &service_id_); | 120 glDeleteVertexArraysOES(1, &service_id_); |
| 118 } | 121 } |
| 119 manager_->StopTracking(this); | 122 manager_->StopTracking(this); |
| 120 manager_ = NULL; | 123 manager_ = NULL; |
| 121 } | 124 } |
| 122 } | 125 } |
| 123 | 126 |
| 124 void VertexAttribManager::Initialize( | 127 void VertexAttribManager::Initialize(uint32_t max_vertex_attribs, |
| 125 uint32 max_vertex_attribs, bool init_attribs) { | 128 bool init_attribs) { |
| 126 vertex_attribs_.resize(max_vertex_attribs); | 129 vertex_attribs_.resize(max_vertex_attribs); |
| 127 | 130 |
| 128 for (uint32 vv = 0; vv < vertex_attribs_.size(); ++vv) { | 131 for (uint32_t vv = 0; vv < vertex_attribs_.size(); ++vv) { |
| 129 vertex_attribs_[vv].set_index(vv); | 132 vertex_attribs_[vv].set_index(vv); |
| 130 vertex_attribs_[vv].SetList(&disabled_vertex_attribs_); | 133 vertex_attribs_[vv].SetList(&disabled_vertex_attribs_); |
| 131 | 134 |
| 132 if (init_attribs) { | 135 if (init_attribs) { |
| 133 glVertexAttrib4f(vv, 0.0f, 0.0f, 0.0f, 1.0f); | 136 glVertexAttrib4f(vv, 0.0f, 0.0f, 0.0f, 1.0f); |
| 134 } | 137 } |
| 135 } | 138 } |
| 136 } | 139 } |
| 137 | 140 |
| 138 void VertexAttribManager::SetElementArrayBuffer(Buffer* buffer) { | 141 void VertexAttribManager::SetElementArrayBuffer(Buffer* buffer) { |
| 139 element_array_buffer_ = buffer; | 142 element_array_buffer_ = buffer; |
| 140 } | 143 } |
| 141 | 144 |
| 142 bool VertexAttribManager::Enable(GLuint index, bool enable) { | 145 bool VertexAttribManager::Enable(GLuint index, bool enable) { |
| 143 if (index >= vertex_attribs_.size()) { | 146 if (index >= vertex_attribs_.size()) { |
| 144 return false; | 147 return false; |
| 145 } | 148 } |
| 146 VertexAttrib& info = vertex_attribs_[index]; | 149 VertexAttrib& info = vertex_attribs_[index]; |
| 147 if (info.enabled() != enable) { | 150 if (info.enabled() != enable) { |
| 148 info.set_enabled(enable); | 151 info.set_enabled(enable); |
| 149 info.SetList(enable ? &enabled_vertex_attribs_ : &disabled_vertex_attribs_); | 152 info.SetList(enable ? &enabled_vertex_attribs_ : &disabled_vertex_attribs_); |
| 150 } | 153 } |
| 151 return true; | 154 return true; |
| 152 } | 155 } |
| 153 | 156 |
| 154 void VertexAttribManager::Unbind(Buffer* buffer) { | 157 void VertexAttribManager::Unbind(Buffer* buffer) { |
| 155 if (element_array_buffer_.get() == buffer) { | 158 if (element_array_buffer_.get() == buffer) { |
| 156 element_array_buffer_ = NULL; | 159 element_array_buffer_ = NULL; |
| 157 } | 160 } |
| 158 for (uint32 vv = 0; vv < vertex_attribs_.size(); ++vv) { | 161 for (uint32_t vv = 0; vv < vertex_attribs_.size(); ++vv) { |
| 159 vertex_attribs_[vv].Unbind(buffer); | 162 vertex_attribs_[vv].Unbind(buffer); |
| 160 } | 163 } |
| 161 } | 164 } |
| 162 | 165 |
| 163 bool VertexAttribManager::ValidateBindings( | 166 bool VertexAttribManager::ValidateBindings( |
| 164 const char* function_name, | 167 const char* function_name, |
| 165 GLES2Decoder* decoder, | 168 GLES2Decoder* decoder, |
| 166 FeatureInfo* feature_info, | 169 FeatureInfo* feature_info, |
| 167 Program* current_program, | 170 Program* current_program, |
| 168 GLuint max_vertex_accessed, | 171 GLuint max_vertex_accessed, |
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| 272 if (current_buffer_id != kInitialBufferId) { | 275 if (current_buffer_id != kInitialBufferId) { |
| 273 // Restore the buffer binding. | 276 // Restore the buffer binding. |
| 274 decoder->RestoreBufferBindings(); | 277 decoder->RestoreBufferBindings(); |
| 275 } | 278 } |
| 276 | 279 |
| 277 return true; | 280 return true; |
| 278 } | 281 } |
| 279 | 282 |
| 280 } // namespace gles2 | 283 } // namespace gles2 |
| 281 } // namespace gpu | 284 } // namespace gpu |
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