95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
/*
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* Copyright (C) 2015-2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(WEBGL)
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#include "GraphicsContextGL.h"
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#include "WebGLBuffer.h"
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#include "WebGLContextObject.h"
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namespace JSC {
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class AbstractSlotVisitor;
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}
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namespace WTF {
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class AbstractLocker;
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}
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namespace WebCore {
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class WebGLVertexArrayObjectBase : public WebGLContextObject {
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public:
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enum class Type { Default, User };
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// Cached values for vertex attrib range checks
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struct VertexAttribState {
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bool isBound() const { return bufferBinding && bufferBinding->object(); }
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bool validateBinding() const { return !enabled || isBound(); }
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bool enabled { false };
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RefPtr<WebGLBuffer> bufferBinding;
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GCGLsizei bytesPerElement { 0 };
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GCGLint size { 4 };
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GCGLenum type { GraphicsContextGL::FLOAT };
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bool normalized { false };
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GCGLsizei stride { 16 };
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GCGLsizei originalStride { 0 };
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GCGLintptr offset { 0 };
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GCGLuint divisor { 0 };
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bool isInteger { false };
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};
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bool isDefaultObject() const { return m_type == Type::Default; }
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bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; }
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void setHasEverBeenBound() { m_hasEverBeenBound = true; }
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WebGLBuffer* getElementArrayBuffer() const { return m_boundElementArrayBuffer.get(); }
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void setElementArrayBuffer(const WTF::AbstractLocker&, WebGLBuffer*);
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VertexAttribState& getVertexAttribState(int index) { return m_vertexAttribState[index]; }
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void setVertexAttribState(const WTF::AbstractLocker&, GCGLuint, GCGLsizei, GCGLint, GCGLenum, GCGLboolean, GCGLsizei, GCGLintptr, bool, WebGLBuffer*);
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void unbindBuffer(const WTF::AbstractLocker&, WebGLBuffer&);
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void setVertexAttribDivisor(GCGLuint index, GCGLuint divisor);
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void addMembersToOpaqueRoots(const WTF::AbstractLocker&, JSC::AbstractSlotVisitor&);
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protected:
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WebGLVertexArrayObjectBase(WebGLRenderingContextBase&, Type);
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void deleteObjectImpl(const WTF::AbstractLocker&, GraphicsContextGL*, PlatformGLObject) override = 0;
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Type m_type;
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bool m_hasEverBeenBound { false };
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RefPtr<WebGLBuffer> m_boundElementArrayBuffer;
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Vector<VertexAttribState> m_vertexAttribState;
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};
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} // namespace WebCore
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#endif
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