1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
  156
  157
  158
  159
  160
  161
  162
  163
  164
  165
  166
  167
  168
  169
  170
  171
  172
  173
  174
  175
  176
  177
  178
  179
  180
  181
  182
  183
  184
  185
  186
  187
  188
  189
  190
  191
  192
  193
  194
  195
  196
  197
  198
  199
  200
  201
  202
  203
  204
  205
  206
  207
  208
  209
  210
  211
  212
  213
  214
  215
  216
  217
  218
  219
  220
  221
  222
  223
  224
  225
  226
  227
  228
  229
  230
  231
  232
  233
  234
  235
  236
  237
  238
  239
  240
  241
  242
  243
  244
  245
  246
  247
  248
  249
  250
  251
  252
  253
  254
  255
  256
  257
  258
  259
  260
  261
  262
  263
  264
  265
  266
  267
  268
  269
  270
  271
  272
  273
  274
  275
  276
  277
  278
  279
  280
  281
  282
  283
  284
  285
  286
  287
  288
  289
  290
  291
  292
  293
  294
  295
  296
  297
  298
  299
  300
  301
  302
  303
  304
  305
  306
  307
  308
  309
  310
  311
  312
  313
  314
  315
  316
  317
  318
  319
  320
  321
  322
  323
  324
  325
  326
  327
  328
  329
  330

gpu / command_buffer / service / context_group.h [blame]

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_
#define GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_

#include <stdint.h>

#include <memory>
#include <unordered_map>
#include <vector>

#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "gpu/command_buffer/common/constants.h"
#include "gpu/command_buffer/common/gles2_cmd_format.h"
#include "gpu/command_buffer/common/gles2_cmd_utils.h"
#include "gpu/command_buffer/service/feature_info.h"
#include "gpu/command_buffer/service/framebuffer_completeness_cache.h"
#include "gpu/command_buffer/service/shader_translator_cache.h"
#include "gpu/config/gpu_feature_info.h"
#include "gpu/config/gpu_preferences.h"
#include "gpu/gpu_gles2_export.h"

namespace gl {
class ProgressReporter;
}

namespace gpu {

struct GpuPreferences;
class SharedImageManager;
class SharedImageRepresentationFactory;
class ServiceDiscardableManager;
class PassthroughDiscardableManager;
class DecoderContext;
class MemoryTracker;

namespace gles2 {

class ProgramCache;
class BufferManager;
class RenderbufferManager;
class ProgramManager;
class SamplerManager;
class ShaderManager;
class TextureManager;
struct DisallowedFeatures;
struct PassthroughResources;

DisallowedFeatures AdjustDisallowedFeatures(
    ContextType context_type,
    const DisallowedFeatures& disallowed_features);

// A Context Group helps manage multiple DecoderContexts that share
// resources.
class GPU_GLES2_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
 public:
  ContextGroup(const GpuPreferences& gpu_preferences,
               bool supports_passthrough_command_decoders,
               std::unique_ptr<MemoryTracker> memory_tracker,
               ShaderTranslatorCache* shader_translator_cache,
               FramebufferCompletenessCache* framebuffer_completeness_cache,
               const scoped_refptr<FeatureInfo>& feature_info,
               bool bind_generates_resource,
               gl::ProgressReporter* progress_reporter,
               const GpuFeatureInfo& gpu_feature_info,
               ServiceDiscardableManager* discardable_manager,
               PassthroughDiscardableManager* passthrough_discardable_manager,
               SharedImageManager* shared_image_manager);

  ContextGroup(const ContextGroup&) = delete;
  ContextGroup& operator=(const ContextGroup&) = delete;

  // This should only be called by a DecoderContext. This must be paired with a
  // call to destroy if it succeeds.
  gpu::ContextResult Initialize(DecoderContext* decoder,
                                ContextType context_type,
                                const DisallowedFeatures& disallowed_features);

  // Destroys all the resources when called for the last context in the group.
  // It should only be called by DecoderContext.
  void Destroy(DecoderContext* decoder, bool have_context);

  gpu::SharedImageManager* shared_image_manager() const {
    return shared_image_manager_;
  }

  MemoryTracker* memory_tracker() const { return memory_tracker_.get(); }

  ShaderTranslatorCache* shader_translator_cache() const {
    return shader_translator_cache_;
  }

  FramebufferCompletenessCache* framebuffer_completeness_cache() const {
    return framebuffer_completeness_cache_;
  }

  bool bind_generates_resource() {
    return bind_generates_resource_;
  }

  uint32_t max_vertex_attribs() const { return max_vertex_attribs_; }

  uint32_t max_texture_units() const { return max_texture_units_; }

  uint32_t max_texture_image_units() const { return max_texture_image_units_; }

  uint32_t max_vertex_texture_image_units() const {
    return max_vertex_texture_image_units_;
  }

  uint32_t max_fragment_uniform_vectors() const {
    return max_fragment_uniform_vectors_;
  }

  uint32_t max_varying_vectors() const { return max_varying_vectors_; }

  uint32_t max_vertex_uniform_vectors() const {
    return max_vertex_uniform_vectors_;
  }

  uint32_t max_color_attachments() const { return max_color_attachments_; }

  uint32_t max_draw_buffers() const { return max_draw_buffers_; }

  uint32_t max_dual_source_draw_buffers() const {
    return max_dual_source_draw_buffers_;
  }

  uint32_t max_vertex_output_components() const {
    return max_vertex_output_components_;
  }

  uint32_t max_fragment_input_components() const {
    return max_fragment_input_components_;
  }

  int32_t min_program_texel_offset() const { return min_program_texel_offset_; }

  int32_t max_program_texel_offset() const { return max_program_texel_offset_; }

  uint32_t max_transform_feedback_separate_attribs() const {
    return max_transform_feedback_separate_attribs_;
  }

  uint32_t max_uniform_buffer_bindings() const {
    return max_uniform_buffer_bindings_;
  }

  uint32_t uniform_buffer_offset_alignment() const {
    return uniform_buffer_offset_alignment_;
  }

  FeatureInfo* feature_info() {
    return feature_info_.get();
  }

  const GpuPreferences& gpu_preferences() const {
    return gpu_preferences_;
  }

  BufferManager* buffer_manager() const {
    return buffer_manager_.get();
  }

  RenderbufferManager* renderbuffer_manager() const {
    return renderbuffer_manager_.get();
  }

  TextureManager* texture_manager() const {
    return texture_manager_.get();
  }

  ProgramManager* program_manager() const {
    return program_manager_.get();
  }

  bool has_program_cache() const { return program_cache_ != nullptr; }

  void set_program_cache(ProgramCache* program_cache) {
    program_cache_ = program_cache;
  }

  ProgramCache* get_program_cache() { return program_cache_; }

  ShaderManager* shader_manager() const {
    return shader_manager_.get();
  }

  SamplerManager* sampler_manager() const {
    return sampler_manager_.get();
  }

  ServiceDiscardableManager* discardable_manager() const {
    return discardable_manager_;
  }

  SharedImageRepresentationFactory* shared_image_representation_factory()
      const {
    return shared_image_representation_factory_.get();
  }

  uint32_t GetMemRepresented() const;

  // Loses all the context associated with this group.
  void LoseContexts(error::ContextLostReason reason);

  bool GetBufferServiceId(GLuint client_id, GLuint* service_id) const;

  void AddSyncId(GLuint client_id, GLsync service_id) {
    syncs_id_map_[client_id] = service_id;
  }

  bool GetSyncServiceId(GLuint client_id, GLsync* service_id) const {
    std::unordered_map<GLuint, GLsync>::const_iterator iter =
        syncs_id_map_.find(client_id);
    if (iter == syncs_id_map_.end())
      return false;
    if (service_id)
      *service_id = iter->second;
    return true;
  }

  void RemoveSyncId(GLuint client_id) {
    syncs_id_map_.erase(client_id);
  }

  bool use_passthrough_cmd_decoder() const {
    return use_passthrough_cmd_decoder_;
  }

  PassthroughResources* passthrough_resources() const {
    return passthrough_resources_.get();
  }

  PassthroughDiscardableManager* passthrough_discardable_manager() const {
    return passthrough_discardable_manager_;
  }

  const GpuFeatureInfo& gpu_feature_info() const { return gpu_feature_info_; }

  void ReportProgress();

 private:
  friend class base::RefCounted<ContextGroup>;
  ~ContextGroup();

  bool CheckGLFeature(GLint min_required, GLint* v);
  bool CheckGLFeatureU(GLint min_required, uint32_t* v);
  bool QueryGLFeature(GLenum pname, GLint min_required, GLint* v);
  bool QueryGLFeatureU(GLenum pname, GLint min_required, uint32_t* v);
  bool HaveContexts();

  // It's safer to make a copy of the GpuPreferences struct rather
  // than refer to the one passed in to the constructor.
  const GpuPreferences gpu_preferences_;
  std::unique_ptr<MemoryTracker> memory_tracker_;
  raw_ptr<ShaderTranslatorCache> shader_translator_cache_;
  raw_ptr<FramebufferCompletenessCache> framebuffer_completeness_cache_;

  bool enforce_gl_minimums_;
  bool bind_generates_resource_;

  uint32_t max_vertex_attribs_;
  uint32_t max_texture_units_;
  uint32_t max_texture_image_units_;
  uint32_t max_vertex_texture_image_units_;
  uint32_t max_fragment_uniform_vectors_;
  uint32_t max_varying_vectors_;
  uint32_t max_vertex_uniform_vectors_;
  uint32_t max_color_attachments_;
  uint32_t max_draw_buffers_;
  uint32_t max_dual_source_draw_buffers_;

  uint32_t max_vertex_output_components_;
  uint32_t max_fragment_input_components_;
  int32_t min_program_texel_offset_;
  int32_t max_program_texel_offset_;

  uint32_t max_transform_feedback_separate_attribs_;
  uint32_t max_uniform_buffer_bindings_;
  uint32_t uniform_buffer_offset_alignment_;

  raw_ptr<ProgramCache> program_cache_;

  std::unique_ptr<BufferManager> buffer_manager_;

  std::unique_ptr<RenderbufferManager> renderbuffer_manager_;

  std::unique_ptr<TextureManager> texture_manager_;

  std::unique_ptr<ProgramManager> program_manager_;

  std::unique_ptr<ShaderManager> shader_manager_;

  std::unique_ptr<SamplerManager> sampler_manager_;

  scoped_refptr<FeatureInfo> feature_info_;

  std::vector<base::WeakPtr<DecoderContext>> decoders_;

  // Mappings from client side IDs to service side IDs.
  std::unordered_map<GLuint, GLsync> syncs_id_map_;

  bool use_passthrough_cmd_decoder_;
  std::unique_ptr<PassthroughResources> passthrough_resources_;
  raw_ptr<PassthroughDiscardableManager> passthrough_discardable_manager_;

  // Used to notify the watchdog thread of progress during destruction,
  // preventing time-outs when destruction takes a long time. May be null when
  // using in-process command buffer.
  raw_ptr<gl::ProgressReporter> progress_reporter_;

  GpuFeatureInfo gpu_feature_info_;

  raw_ptr<ServiceDiscardableManager> discardable_manager_;

  std::unique_ptr<SharedImageRepresentationFactory>
      shared_image_representation_factory_;

  raw_ptr<gpu::SharedImageManager> shared_image_manager_ = nullptr;
};

}  // namespace gles2
}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_