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 3 // found in the LICENSE file. 4 5 #ifndef GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_ 6 #define GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_ 7 8 #include <string> 9 #include <vector> 10 #include "base/basictypes.h" 11 #include "base/containers/hash_tables.h" 12 #include "base/memory/linked_ptr.h" 13 #include "base/memory/ref_counted.h" 14 #include "base/memory/scoped_ptr.h" 15 #include "base/memory/weak_ptr.h" 16 #include "gpu/command_buffer/common/gles2_cmd_format.h" 17 #include "gpu/command_buffer/service/feature_info.h" 18 #include "gpu/command_buffer/service/gles2_cmd_validation.h" 19 #include "gpu/gpu_export.h" 20 21 namespace gpu { 22 23 class IdAllocatorInterface; 24 class StreamTextureManager; 25 class TransferBufferManagerInterface; 26 27 namespace gles2 { 28 29 class ProgramCache; 30 class BufferManager; 31 class GLES2Decoder; 32 class FramebufferManager; 33 class ImageManager; 34 class MailboxManager; 35 class RenderbufferManager; 36 class ProgramManager; 37 class ShaderManager; 38 class TextureManager; 39 class MemoryTracker; 40 struct DisallowedFeatures; 41 42 // A Context Group helps manage multiple GLES2Decoders that share 43 // resources. 44 class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> { 45 public: 46 ContextGroup( 47 MailboxManager* mailbox_manager, 48 ImageManager* image_manager, 49 MemoryTracker* memory_tracker, 50 StreamTextureManager* stream_texture_manager, 51 FeatureInfo* feature_info, 52 bool bind_generates_resource); 53 54 // This should only be called by GLES2Decoder. This must be paired with a 55 // call to destroy if it succeeds. 56 bool Initialize( 57 GLES2Decoder* decoder, 58 const DisallowedFeatures& disallowed_features); 59 60 // Destroys all the resources when called for the last context in the group. 61 // It should only be called by GLES2Decoder. 62 void Destroy(GLES2Decoder* decoder, bool have_context); 63 64 MailboxManager* mailbox_manager() const { 65 return mailbox_manager_.get(); 66 } 67 68 ImageManager* image_manager() const { 69 return image_manager_.get(); 70 } 71 72 MemoryTracker* memory_tracker() const { 73 return memory_tracker_.get(); 74 } 75 76 StreamTextureManager* stream_texture_manager() const { 77 return stream_texture_manager_; 78 } 79 80 bool bind_generates_resource() { 81 return bind_generates_resource_; 82 } 83 84 uint32 max_vertex_attribs() const { 85 return max_vertex_attribs_; 86 } 87 88 uint32 max_texture_units() const { 89 return max_texture_units_; 90 } 91 92 uint32 max_texture_image_units() const { 93 return max_texture_image_units_; 94 } 95 96 uint32 max_vertex_texture_image_units() const { 97 return max_vertex_texture_image_units_; 98 } 99 100 uint32 max_fragment_uniform_vectors() const { 101 return max_fragment_uniform_vectors_; 102 } 103 104 uint32 max_varying_vectors() const { 105 return max_varying_vectors_; 106 } 107 108 uint32 max_vertex_uniform_vectors() const { 109 return max_vertex_uniform_vectors_; 110 } 111 112 uint32 max_color_attachments() const { 113 return max_color_attachments_; 114 } 115 116 uint32 max_draw_buffers() const { 117 return max_draw_buffers_; 118 } 119 120 FeatureInfo* feature_info() { 121 return feature_info_.get(); 122 } 123 124 BufferManager* buffer_manager() const { 125 return buffer_manager_.get(); 126 } 127 128 FramebufferManager* framebuffer_manager() const { 129 return framebuffer_manager_.get(); 130 } 131 132 RenderbufferManager* renderbuffer_manager() const { 133 return renderbuffer_manager_.get(); 134 } 135 136 TextureManager* texture_manager() const { 137 return texture_manager_.get(); 138 } 139 140 ProgramManager* program_manager() const { 141 return program_manager_.get(); 142 } 143 144 bool has_program_cache() const { 145 return program_cache_ != NULL; 146 } 147 148 void set_program_cache(ProgramCache* program_cache) { 149 program_cache_ = program_cache; 150 } 151 152 ShaderManager* shader_manager() const { 153 return shader_manager_.get(); 154 } 155 156 TransferBufferManagerInterface* transfer_buffer_manager() const { 157 return transfer_buffer_manager_.get(); 158 } 159 160 IdAllocatorInterface* GetIdAllocator(unsigned namespace_id); 161 162 uint32 GetMemRepresented() const; 163 164 // Loses all the context associated with this group. 165 void LoseContexts(GLenum reset_status); 166 167 // EXT_draw_buffer related states for backbuffer. 168 GLenum draw_buffer() const { 169 return draw_buffer_; 170 } 171 void set_draw_buffer(GLenum buf) { 172 draw_buffer_ = buf; 173 } 174 175 private: 176 friend class base::RefCounted<ContextGroup>; 177 ~ContextGroup(); 178 179 bool CheckGLFeature(GLint min_required, GLint* v); 180 bool CheckGLFeatureU(GLint min_required, uint32* v); 181 bool QueryGLFeature(GLenum pname, GLint min_required, GLint* v); 182 bool QueryGLFeatureU(GLenum pname, GLint min_required, uint32* v); 183 bool HaveContexts(); 184 185 scoped_refptr<MailboxManager> mailbox_manager_; 186 scoped_refptr<ImageManager> image_manager_; 187 scoped_refptr<MemoryTracker> memory_tracker_; 188 StreamTextureManager* stream_texture_manager_; 189 scoped_ptr<TransferBufferManagerInterface> transfer_buffer_manager_; 190 191 bool enforce_gl_minimums_; 192 bool bind_generates_resource_; 193 194 uint32 max_vertex_attribs_; 195 uint32 max_texture_units_; 196 uint32 max_texture_image_units_; 197 uint32 max_vertex_texture_image_units_; 198 uint32 max_fragment_uniform_vectors_; 199 uint32 max_varying_vectors_; 200 uint32 max_vertex_uniform_vectors_; 201 uint32 max_color_attachments_; 202 uint32 max_draw_buffers_; 203 204 ProgramCache* program_cache_; 205 206 scoped_ptr<BufferManager> buffer_manager_; 207 208 scoped_ptr<FramebufferManager> framebuffer_manager_; 209 210 scoped_ptr<RenderbufferManager> renderbuffer_manager_; 211 212 scoped_ptr<TextureManager> texture_manager_; 213 214 scoped_ptr<ProgramManager> program_manager_; 215 216 scoped_ptr<ShaderManager> shader_manager_; 217 218 linked_ptr<IdAllocatorInterface> 219 id_namespaces_[id_namespaces::kNumIdNamespaces]; 220 221 scoped_refptr<FeatureInfo> feature_info_; 222 223 std::vector<base::WeakPtr<gles2::GLES2Decoder> > decoders_; 224 225 GLenum draw_buffer_; 226 227 DISALLOW_COPY_AND_ASSIGN(ContextGroup); 228 }; 229 230 } // namespace gles2 231 } // namespace gpu 232 233 #endif // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_ 234 235 236
