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| 1 /* | |
| 2 * Copyright (C) 2009 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef SKY_ENGINE_CORE_HTML_CANVAS_WEBGLPROGRAM_H_ | |
| 27 #define SKY_ENGINE_CORE_HTML_CANVAS_WEBGLPROGRAM_H_ | |
| 28 | |
| 29 #include "sky/engine/tonic/dart_wrappable.h" | |
| 30 #include "sky/engine/core/html/canvas/WebGLShader.h" | |
| 31 #include "sky/engine/core/html/canvas/WebGLSharedObject.h" | |
| 32 #include "sky/engine/wtf/PassRefPtr.h" | |
| 33 #include "sky/engine/wtf/Vector.h" | |
| 34 | |
| 35 namespace blink { | |
| 36 | |
| 37 class WebGLProgram final : public WebGLSharedObject, public DartWrappable { | |
| 38 DEFINE_WRAPPERTYPEINFO(); | |
| 39 public: | |
| 40 virtual ~WebGLProgram(); | |
| 41 | |
| 42 static PassRefPtr<WebGLProgram> create(WebGLRenderingContextBase*); | |
| 43 | |
| 44 unsigned numActiveAttribLocations(); | |
| 45 GLint getActiveAttribLocation(GLuint index); | |
| 46 | |
| 47 bool isUsingVertexAttrib0(); | |
| 48 | |
| 49 bool linkStatus(); | |
| 50 | |
| 51 unsigned linkCount() const { return m_linkCount; } | |
| 52 | |
| 53 // This is to be called everytime after the program is successfully linked. | |
| 54 // We don't deal with integer overflow here, assuming in reality a program | |
| 55 // will never be linked so many times. | |
| 56 // Also, we invalidate the cached program info. | |
| 57 void increaseLinkCount(); | |
| 58 | |
| 59 WebGLShader* getAttachedShader(GLenum); | |
| 60 bool attachShader(WebGLShader*); | |
| 61 bool detachShader(WebGLShader*); | |
| 62 | |
| 63 protected: | |
| 64 explicit WebGLProgram(WebGLRenderingContextBase*); | |
| 65 | |
| 66 virtual void deleteObjectImpl(blink::WebGraphicsContext3D*, Platform3DObject
) override; | |
| 67 | |
| 68 private: | |
| 69 virtual bool isProgram() const override { return true; } | |
| 70 | |
| 71 void cacheActiveAttribLocations(blink::WebGraphicsContext3D*); | |
| 72 void cacheInfoIfNeeded(); | |
| 73 | |
| 74 Vector<GLint> m_activeAttribLocations; | |
| 75 | |
| 76 GLint m_linkStatus; | |
| 77 | |
| 78 // This is used to track whether a WebGLUniformLocation belongs to this | |
| 79 // program or not. | |
| 80 unsigned m_linkCount; | |
| 81 | |
| 82 RefPtr<WebGLShader> m_vertexShader; | |
| 83 RefPtr<WebGLShader> m_fragmentShader; | |
| 84 | |
| 85 bool m_infoValid; | |
| 86 }; | |
| 87 | |
| 88 } // namespace blink | |
| 89 | |
| 90 #endif // SKY_ENGINE_CORE_HTML_CANVAS_WEBGLPROGRAM_H_ | |
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