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// Copyright (c) 2012 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_CONTEXT_GROUP_H_
#define GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/containers/hash_tables.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "gpu/command_buffer/common/gles2_cmd_format.h"
#include "gpu/command_buffer/service/feature_info.h"
#include "gpu/command_buffer/service/gles2_cmd_validation.h"
#include "gpu/command_buffer/service/shader_translator_cache.h"
#include "gpu/gpu_export.h"
namespace gpu {
class TransferBufferManagerInterface;
namespace gles2 {
class ProgramCache;
class BufferManager;
class GLES2Decoder;
class FramebufferManager;
class MailboxManager;
class RenderbufferManager;
class ProgramManager;
class ShaderManager;
class TextureManager;
class ValuebufferManager;
class MemoryTracker;
struct DisallowedFeatures;
// A Context Group helps manage multiple GLES2Decoders that share
// resources.
class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
public:
ContextGroup(
const scoped_refptr<MailboxManager>& mailbox_manager,
const scoped_refptr<MemoryTracker>& memory_tracker,
const scoped_refptr<ShaderTranslatorCache>& shader_translator_cache,
const scoped_refptr<FeatureInfo>& feature_info,
bool bind_generates_resource);
// This should only be called by GLES2Decoder. This must be paired with a
// call to destroy if it succeeds.
bool Initialize(
GLES2Decoder* decoder,
const DisallowedFeatures& disallowed_features);
// Destroys all the resources when called for the last context in the group.
// It should only be called by GLES2Decoder.
void Destroy(GLES2Decoder* decoder, bool have_context);
MailboxManager* mailbox_manager() const {
return mailbox_manager_.get();
}
MemoryTracker* memory_tracker() const {
return memory_tracker_.get();
}
ShaderTranslatorCache* shader_translator_cache() const {
return shader_translator_cache_.get();
}
bool bind_generates_resource() {
return bind_generates_resource_;
}
uint32 max_vertex_attribs() const {
return max_vertex_attribs_;
}
uint32 max_texture_units() const {
return max_texture_units_;
}
uint32 max_texture_image_units() const {
return max_texture_image_units_;
}
uint32 max_vertex_texture_image_units() const {
return max_vertex_texture_image_units_;
}
uint32 max_fragment_uniform_vectors() const {
return max_fragment_uniform_vectors_;
}
uint32 max_varying_vectors() const {
return max_varying_vectors_;
}
uint32 max_vertex_uniform_vectors() const {
return max_vertex_uniform_vectors_;
}
uint32 max_color_attachments() const {
return max_color_attachments_;
}
uint32 max_draw_buffers() const {
return max_draw_buffers_;
}
FeatureInfo* feature_info() {
return feature_info_.get();
}
BufferManager* buffer_manager() const {
return buffer_manager_.get();
}
FramebufferManager* framebuffer_manager() const {
return framebuffer_manager_.get();
}
RenderbufferManager* renderbuffer_manager() const {
return renderbuffer_manager_.get();
}
ValuebufferManager* valuebuffer_manager() const {
return valuebuffer_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_ != NULL;
}
void set_program_cache(ProgramCache* program_cache) {
program_cache_ = program_cache;
}
ShaderManager* shader_manager() const {
return shader_manager_.get();
}
TransferBufferManagerInterface* transfer_buffer_manager() const {
return transfer_buffer_manager_.get();
}
uint32 GetMemRepresented() const;
// Loses all the context associated with this group.
void LoseContexts(GLenum reset_status);
// EXT_draw_buffer related states for backbuffer.
GLenum draw_buffer() const {
return draw_buffer_;
}
void set_draw_buffer(GLenum buf) {
draw_buffer_ = buf;
}
private:
friend class base::RefCounted<ContextGroup>;
~ContextGroup();
bool CheckGLFeature(GLint min_required, GLint* v);
bool CheckGLFeatureU(GLint min_required, uint32* v);
bool QueryGLFeature(GLenum pname, GLint min_required, GLint* v);
bool QueryGLFeatureU(GLenum pname, GLint min_required, uint32* v);
bool HaveContexts();
scoped_refptr<MailboxManager> mailbox_manager_;
scoped_refptr<MemoryTracker> memory_tracker_;
scoped_refptr<ShaderTranslatorCache> shader_translator_cache_;
scoped_ptr<TransferBufferManagerInterface> transfer_buffer_manager_;
bool enforce_gl_minimums_;
bool bind_generates_resource_;
uint32 max_vertex_attribs_;
uint32 max_texture_units_;
uint32 max_texture_image_units_;
uint32 max_vertex_texture_image_units_;
uint32 max_fragment_uniform_vectors_;
uint32 max_varying_vectors_;
uint32 max_vertex_uniform_vectors_;
uint32 max_color_attachments_;
uint32 max_draw_buffers_;
ProgramCache* program_cache_;
scoped_ptr<BufferManager> buffer_manager_;
scoped_ptr<FramebufferManager> framebuffer_manager_;
scoped_ptr<RenderbufferManager> renderbuffer_manager_;
scoped_ptr<ValuebufferManager> valuebuffer_manager_;
scoped_ptr<TextureManager> texture_manager_;
scoped_ptr<ProgramManager> program_manager_;
scoped_ptr<ShaderManager> shader_manager_;
scoped_refptr<FeatureInfo> feature_info_;
std::vector<base::WeakPtr<gles2::GLES2Decoder> > decoders_;
GLenum draw_buffer_;
DISALLOW_COPY_AND_ASSIGN(ContextGroup);
};
} // namespace gles2
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_
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