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// Copyright (c) 2010 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_FRAMEBUFFER_MANAGER_H_
#define GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_
#include <map>
#include "base/basictypes.h"
#include "base/logging.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "gpu/command_buffer/service/gl_utils.h"
#include "gpu/command_buffer/service/renderbuffer_manager.h"
namespace gpu {
namespace gles2 {
// This class keeps track of the frambebuffers and their attached renderbuffers
// so we can correctly clear them.
class FramebufferManager {
public:
// Info about Framebuffers currently in the system.
class FramebufferInfo : public base::RefCounted<FramebufferInfo> {
public:
typedef scoped_refptr<FramebufferInfo> Ref;
explicit FramebufferInfo(GLuint service_id)
: service_id_(service_id) {
}
GLuint service_id() const {
return service_id_;
}
// Attaches a renderbuffer to a particlar attachment.
// Pass null to detach.
void AttachRenderbuffer(
GLenum attachment, RenderbufferManager::RenderbufferInfo* renderbuffer);
bool IsDeleted() {
return service_id_ == 0;
}
private:
friend class FramebufferManager;
friend class base::RefCounted<FramebufferInfo>;
~FramebufferInfo() { }
void MarkAsDeleted() {
service_id_ = 0;
renderbuffers_.clear();
}
// Service side framebuffer id.
GLuint service_id_;
// A map of attachments to renderbuffers.
typedef std::map<GLenum, RenderbufferManager::RenderbufferInfo::Ref>
AttachmentToRenderbufferMap;
AttachmentToRenderbufferMap renderbuffers_;
};
FramebufferManager() { }
// Creates a FramebufferInfo for the given framebuffer.
void CreateFramebufferInfo(GLuint client_id, GLuint service_id);
// Gets the framebuffer info for the given framebuffer.
FramebufferInfo* GetFramebufferInfo(GLuint client_id);
// Removes a framebuffer info for the given framebuffer.
void RemoveFramebufferInfo(GLuint client_id);
// Gets a client id for a given service id.
bool GetClientId(GLuint service_id, GLuint* client_id) const;
private:
// Info for each framebuffer in the system.
// TODO(gman): Choose a faster container.
typedef std::map<GLuint, FramebufferInfo::Ref> FramebufferInfoMap;
FramebufferInfoMap framebuffer_infos_;
DISALLOW_COPY_AND_ASSIGN(FramebufferManager);
};
} // namespace gles2
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_
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