blob: 840f6217252443c9c6eaf98eeaac5c934b565f38 [file] [log] [blame]
// 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.
#include <map>
#include "base/macros.h"
#include "gpu/command_buffer/service/gl_utils.h"
#include "gpu/gpu_gles2_export.h"
namespace gpu {
namespace gles2 {
// This class keeps track of paths and their client and service ids
// so we can correctly clear them.
class GPU_GLES2_EXPORT PathManager {
// Must call before destruction.
void Destroy(bool have_context);
// Creates a path mapping between closed intervals
// [first_client_id, last_client_id] -> [first_service_id, ...].
void CreatePathRange(GLuint first_client_id,
GLuint last_client_id,
GLuint first_service_id);
// Returns true if any path exists in the closed interval
// [first_client_id, last_client_id].
bool HasPathsInRange(GLuint first_client_id, GLuint last_client_id) const;
// Gets the path id corresponding the client path id.
// Returns false if no such service path id was not found.
bool GetPath(GLuint client_id, GLuint* service_id) const;
// Removes a closed interval of paths [first_client_id, last_client_id].
void RemovePaths(GLuint first_client_id, GLuint last_client_id);
// Mapping between client id and service id.
// Should be used only by the implementation.
struct PathRangeDescription {
PathRangeDescription(GLuint last_client, GLuint first_service)
: last_client_id(last_client), first_service_id(first_service) {}
GLuint last_client_id;
GLuint first_service_id;
typedef GLuint ServiceIdType;
typedef std::map<GLuint, PathRangeDescription> PathRangeMap;
// Checks for consistency inside the book-keeping structures. Used as
// DCHECK pre/post condition in mutating functions.
bool CheckConsistency();
PathRangeMap path_map_;
} // namespace gles2
} // namespace gpu