| /* |
| * Copyright (C) 2009-2017 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include "WebGLSharedObject.h" |
| |
| namespace WebCore { |
| |
| class WebGLShader; |
| |
| class WebGLProgram final : public WebGLSharedObject { |
| public: |
| static Ref<WebGLProgram> create(WebGLRenderingContextBase&); |
| virtual ~WebGLProgram(); |
| |
| unsigned numActiveAttribLocations(); |
| GC3Dint getActiveAttribLocation(GC3Duint index); |
| |
| bool isUsingVertexAttrib0(); |
| |
| bool getLinkStatus(); |
| void setLinkStatus(bool); |
| |
| unsigned getLinkCount() const { return m_linkCount; } |
| |
| // This is to be called everytime after the program is successfully linked. |
| // We don't deal with integer overflow here, assuming in reality a program |
| // will never be linked so many times. |
| // Also, we invalidate the cached program info. |
| void increaseLinkCount(); |
| |
| WebGLShader* getAttachedShader(GC3Denum); |
| bool attachShader(WebGLShader*); |
| bool detachShader(WebGLShader*); |
| |
| protected: |
| WebGLProgram(WebGLRenderingContextBase&); |
| |
| void deleteObjectImpl(GraphicsContext3D*, Platform3DObject) override; |
| |
| private: |
| void cacheActiveAttribLocations(GraphicsContext3D*); |
| void cacheInfoIfNeeded(); |
| |
| Vector<GC3Dint> m_activeAttribLocations; |
| |
| GC3Dint m_linkStatus { 0 }; |
| |
| // This is used to track whether a WebGLUniformLocation belongs to this program or not. |
| unsigned m_linkCount { 0 }; |
| |
| RefPtr<WebGLShader> m_vertexShader; |
| RefPtr<WebGLShader> m_fragmentShader; |
| |
| bool m_infoValid { true }; |
| }; |
| |
| } // namespace WebCore |