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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef WEBGL_BUFFER_H_
#define WEBGL_BUFFER_H_
#include <map>
#include "CacheInvalidator.h"
#include "GLDefs.h"
#include "WebGLObjectModel.h"
#include "WebGLTypes.h"
namespace mozilla {
class WebGLBuffer final : public WebGLContextBoundObject {
friend class WebGLContext;
friend class WebGL2Context;
friend class WebGLMemoryTracker;
friend class WebGLTexture;
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(WebGLBuffer, override)
public:
enum class Kind { Undefined, ElementArray, OtherData };
WebGLBuffer(WebGLContext* webgl, GLuint buf);
void SetContentAfterBind(GLenum target);
Kind Content() const { return mContent; }
size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const;
GLenum Usage() const { return mUsage; }
size_t ByteLength() const { return mByteLength; }
Maybe<uint32_t> GetIndexedFetchMaxVert(GLenum type, uint64_t byteOffset,
uint32_t indexCount) const;
bool ValidateRange(size_t byteOffset, size_t byteLen) const;
bool ValidateCanBindToTarget(GLenum target);
void BufferData(GLenum target, uint64_t size, const void* data, GLenum usage,
bool allowUninitialized = false);
void BufferSubData(GLenum target, uint64_t dstByteOffset, uint64_t dataLen,
const void* data, bool unsynchronized = false) const;
////
const GLenum mGLName;
protected:
~WebGLBuffer() override;
void InvalidateCacheRange(uint64_t byteOffset, uint64_t byteLength) const;
Kind mContent = Kind::Undefined;
GLenum mUsage = LOCAL_GL_STATIC_DRAW;
size_t mByteLength = 0;
mutable uint64_t mLastUpdateFenceId = 0;
struct IndexRange final {
GLenum type;
uint64_t byteOffset;
uint32_t indexCount;
bool operator<(const IndexRange& x) const {
if (type != x.type) return type < x.type;
if (byteOffset != x.byteOffset) return byteOffset < x.byteOffset;
return indexCount < x.indexCount;
}
};
UniqueBuffer mIndexCache;
mutable std::map<IndexRange, Maybe<uint32_t>> mIndexRanges;
public:
CacheInvalidator mFetchInvalidator;
void ResetLastUpdateFenceId() const;
};
} // namespace mozilla
#endif // WEBGL_BUFFER_H_
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