121 lines
4.4 KiB
C++
121 lines
4.4 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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#include "config.h"
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#include "WebGLVertexArrayObjectBase.h"
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#if ENABLE(WEBGL)
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#include "WebGLRenderingContextBase.h"
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#include <JavaScriptCore/AbstractSlotVisitorInlines.h>
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#include <wtf/Locker.h>
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namespace WebCore {
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WebGLVertexArrayObjectBase::WebGLVertexArrayObjectBase(WebGLRenderingContextBase& context, Type type)
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: WebGLContextObject(context)
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, m_type(type)
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{
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m_vertexAttribState.resize(context.getMaxVertexAttribs());
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}
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void WebGLVertexArrayObjectBase::setElementArrayBuffer(const AbstractLocker& locker, WebGLBuffer* buffer)
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{
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if (buffer)
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buffer->onAttached();
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if (m_boundElementArrayBuffer)
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m_boundElementArrayBuffer->onDetached(locker, context()->graphicsContextGL());
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m_boundElementArrayBuffer = buffer;
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}
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void WebGLVertexArrayObjectBase::setVertexAttribState(const AbstractLocker& locker, GCGLuint index, GCGLsizei bytesPerElement, GCGLint size, GCGLenum type, GCGLboolean normalized, GCGLsizei stride, GCGLintptr offset, bool isInteger, WebGLBuffer* buffer)
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{
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GCGLsizei validatedStride = stride ? stride : bytesPerElement;
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auto& state = m_vertexAttribState[index];
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if (buffer)
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buffer->onAttached();
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if (state.bufferBinding)
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state.bufferBinding->onDetached(locker, context()->graphicsContextGL());
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state.bufferBinding = buffer;
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state.bytesPerElement = bytesPerElement;
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state.size = size;
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state.type = type;
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state.normalized = normalized;
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state.stride = validatedStride;
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state.originalStride = stride;
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state.offset = offset;
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state.isInteger = isInteger;
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}
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void WebGLVertexArrayObjectBase::unbindBuffer(const AbstractLocker& locker, WebGLBuffer& buffer)
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{
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if (m_boundElementArrayBuffer == &buffer) {
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m_boundElementArrayBuffer->onDetached(locker, context()->graphicsContextGL());
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m_boundElementArrayBuffer = nullptr;
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}
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for (size_t i = 0; i < m_vertexAttribState.size(); ++i) {
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auto& state = m_vertexAttribState[i];
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if (state.bufferBinding == &buffer) {
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buffer.onDetached(locker, context()->graphicsContextGL());
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#if !USE(ANGLE)
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if (!i && !context()->isGLES2Compliant()) {
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state.bufferBinding = context()->m_vertexAttrib0Buffer;
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state.bufferBinding->onAttached();
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state.bytesPerElement = 0;
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state.size = 4;
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state.type = GraphicsContextGL::FLOAT;
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state.normalized = false;
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state.stride = 16;
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state.originalStride = 0;
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state.offset = 0;
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} else
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#endif
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state.bufferBinding = nullptr;
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}
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}
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}
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void WebGLVertexArrayObjectBase::setVertexAttribDivisor(GCGLuint index, GCGLuint divisor)
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{
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m_vertexAttribState[index].divisor = divisor;
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}
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void WebGLVertexArrayObjectBase::addMembersToOpaqueRoots(const AbstractLocker&, JSC::AbstractSlotVisitor& visitor)
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{
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visitor.addOpaqueRoot(m_boundElementArrayBuffer.get());
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for (auto& state : m_vertexAttribState)
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visitor.addOpaqueRoot(state.bufferBinding.get());
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}
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}
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#endif // ENABLE(WEBGL)
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