| // Copyright (c) 2015 The Chromium Authors. All rights reserved. |
| // 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_SAMPLER_MANAGER_H_ |
| #define GPU_COMMAND_BUFFER_SERVICE_SAMPLER_MANAGER_H_ |
| |
| #include <vector> |
| |
| #include "base/containers/hash_tables.h" |
| #include "base/logging.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "gpu/command_buffer/service/feature_info.h" |
| #include "gpu/command_buffer/service/gl_utils.h" |
| #include "gpu/gpu_export.h" |
| |
| namespace gpu { |
| |
| namespace gles2 { |
| |
| class SamplerManager; |
| |
| struct SamplerState { |
| SamplerState(); |
| |
| GLenum min_filter; |
| GLenum mag_filter; |
| GLenum wrap_r; |
| GLenum wrap_s; |
| GLenum wrap_t; |
| GLenum compare_func; |
| GLenum compare_mode; |
| GLfloat max_lod; |
| GLfloat min_lod; |
| }; |
| |
| class GPU_EXPORT Sampler : public base::RefCounted<Sampler> { |
| public: |
| Sampler(SamplerManager* manager, GLuint client_id, GLuint service_id); |
| |
| GLuint client_id() const { |
| return client_id_; |
| } |
| |
| GLuint service_id() const { |
| return service_id_; |
| } |
| |
| const SamplerState& sampler_state() const { |
| return sampler_state_; |
| } |
| |
| // Sampler parameters |
| GLenum min_filter() const { |
| return sampler_state_.min_filter; |
| } |
| |
| GLenum mag_filter() const { |
| return sampler_state_.mag_filter; |
| } |
| |
| GLenum wrap_r() const { |
| return sampler_state_.wrap_r; |
| } |
| |
| GLenum wrap_s() const { |
| return sampler_state_.wrap_s; |
| } |
| |
| GLenum wrap_t() const { |
| return sampler_state_.wrap_t; |
| } |
| |
| GLenum compare_func() const { |
| return sampler_state_.compare_func; |
| } |
| |
| GLenum compare_mode() const { |
| return sampler_state_.compare_mode; |
| } |
| |
| GLfloat max_lod() const { |
| return sampler_state_.max_lod; |
| } |
| |
| GLfloat min_lod() const { |
| return sampler_state_.min_lod; |
| } |
| |
| bool IsDeleted() const { |
| return deleted_; |
| } |
| |
| protected: |
| virtual ~Sampler(); |
| |
| SamplerManager* manager() const { |
| return manager_; |
| } |
| |
| void MarkAsDeleted() { |
| deleted_ = true; |
| } |
| |
| private: |
| friend class SamplerManager; |
| friend class base::RefCounted<Sampler>; |
| |
| // Sets a sampler parameter. |
| // Returns GL_NO_ERROR on success. Otherwise the error to generate. |
| GLenum SetParameteri( |
| const FeatureInfo* feature_info, GLenum pname, GLint param); |
| GLenum SetParameterf( |
| const FeatureInfo* feature_info, GLenum pname, GLfloat param); |
| |
| // The manager that owns this Sampler. |
| SamplerManager* manager_; |
| |
| GLuint client_id_; |
| GLuint service_id_; |
| |
| // Sampler parameters. |
| SamplerState sampler_state_; |
| |
| // True if deleted. |
| bool deleted_; |
| }; |
| |
| // This class keeps track of the samplers and their state. |
| class GPU_EXPORT SamplerManager { |
| public: |
| SamplerManager(FeatureInfo* feature_info); |
| ~SamplerManager(); |
| |
| // Must call before destruction. |
| void Destroy(bool have_context); |
| |
| // Creates a Sampler for the given sampler. |
| Sampler* CreateSampler(GLuint client_id, GLuint service_id); |
| |
| // Gets the Sampler info for the given sampler. |
| Sampler* GetSampler(GLuint client_id); |
| |
| // Removes a Sampler info for the given sampler. |
| void RemoveSampler(GLuint client_id); |
| |
| // Sets a sampler parameter of a Sampler. |
| // Returns GL_NO_ERROR on success. Otherwise the error to generate. |
| void SetParameteri( |
| const char* function_name, ErrorState* error_state, |
| Sampler* sampler, GLenum pname, GLint param); |
| void SetParameterf( |
| const char* function_name, ErrorState* error_state, |
| Sampler* sampler, GLenum pname, GLfloat param); |
| |
| private: |
| friend class Sampler; |
| |
| scoped_refptr<FeatureInfo> feature_info_; |
| |
| // Info for each sampler in the system. |
| typedef base::hash_map<GLuint, scoped_refptr<Sampler> > SamplerMap; |
| SamplerMap samplers_; |
| |
| bool have_context_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SamplerManager); |
| }; |
| |
| } // namespace gles2 |
| } // namespace gpu |
| |
| #endif // GPU_COMMAND_BUFFER_SERVICE_SAMPLER_MANAGER_H_ |