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| 1 /* | |
| 2 * Copyright (C) 2011 Google 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_WEBGLVERTEXARRAYOBJECTOES_H_ | |
| 27 #define SKY_ENGINE_CORE_HTML_CANVAS_WEBGLVERTEXARRAYOBJECTOES_H_ | |
| 28 | |
| 29 #include "sky/engine/tonic/dart_wrappable.h" | |
| 30 #include "sky/engine/core/html/canvas/WebGLBuffer.h" | |
| 31 #include "sky/engine/core/html/canvas/WebGLContextObject.h" | |
| 32 #include "sky/engine/wtf/PassRefPtr.h" | |
| 33 #include "sky/engine/wtf/RefCounted.h" | |
| 34 #include "sky/engine/wtf/Vector.h" | |
| 35 | |
| 36 namespace blink { | |
| 37 | |
| 38 class WebGLVertexArrayObjectOES final : public WebGLContextObject, public DartWr
appable { | |
| 39 DEFINE_WRAPPERTYPEINFO(); | |
| 40 public: | |
| 41 enum VaoType { | |
| 42 VaoTypeDefault, | |
| 43 VaoTypeUser, | |
| 44 }; | |
| 45 | |
| 46 virtual ~WebGLVertexArrayObjectOES(); | |
| 47 | |
| 48 static PassRefPtr<WebGLVertexArrayObjectOES> create(WebGLRenderingContextBas
e*, VaoType); | |
| 49 | |
| 50 // Cached values for vertex attrib range checks | |
| 51 class VertexAttribState final { | |
| 52 ALLOW_ONLY_INLINE_ALLOCATION(); | |
| 53 public: | |
| 54 VertexAttribState() | |
| 55 : enabled(false) | |
| 56 , bytesPerElement(0) | |
| 57 , size(4) | |
| 58 , type(GL_FLOAT) | |
| 59 , normalized(false) | |
| 60 , stride(16) | |
| 61 , originalStride(0) | |
| 62 , offset(0) | |
| 63 , divisor(0) | |
| 64 { | |
| 65 } | |
| 66 | |
| 67 bool enabled; | |
| 68 RefPtr<WebGLBuffer> bufferBinding; | |
| 69 GLsizei bytesPerElement; | |
| 70 GLint size; | |
| 71 GLenum type; | |
| 72 bool normalized; | |
| 73 GLsizei stride; | |
| 74 GLsizei originalStride; | |
| 75 GLintptr offset; | |
| 76 GLuint divisor; | |
| 77 }; | |
| 78 | |
| 79 bool isDefaultObject() const { return m_type == VaoTypeDefault; } | |
| 80 | |
| 81 bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; } | |
| 82 void setHasEverBeenBound() { m_hasEverBeenBound = true; } | |
| 83 | |
| 84 PassRefPtr<WebGLBuffer> boundElementArrayBuffer() const { return m_boundElem
entArrayBuffer; } | |
| 85 void setElementArrayBuffer(PassRefPtr<WebGLBuffer>); | |
| 86 | |
| 87 VertexAttribState& getVertexAttribState(int index) { return m_vertexAttribSt
ate[index]; } | |
| 88 void setVertexAttribState(GLuint, GLsizei, GLint, GLenum, GLboolean, GLsizei
, GLintptr, PassRefPtr<WebGLBuffer>); | |
| 89 void unbindBuffer(PassRefPtr<WebGLBuffer>); | |
| 90 void setVertexAttribDivisor(GLuint index, GLuint divisor); | |
| 91 | |
| 92 private: | |
| 93 WebGLVertexArrayObjectOES(WebGLRenderingContextBase*, VaoType); | |
| 94 | |
| 95 void dispatchDetached(blink::WebGraphicsContext3D*); | |
| 96 virtual void deleteObjectImpl(blink::WebGraphicsContext3D*, Platform3DObject
) override; | |
| 97 | |
| 98 VaoType m_type; | |
| 99 bool m_hasEverBeenBound; | |
| 100 #if ENABLE(OILPAN) | |
| 101 bool m_destructionInProgress; | |
| 102 #endif | |
| 103 RefPtr<WebGLBuffer> m_boundElementArrayBuffer; | |
| 104 Vector<VertexAttribState> m_vertexAttribState; | |
| 105 }; | |
| 106 | |
| 107 } // namespace blink | |
| 108 | |
| 109 namespace WTF { | |
| 110 | |
| 111 template<> | |
| 112 struct VectorTraits<blink::WebGLVertexArrayObjectOES::VertexAttribState> : Simpl
eClassVectorTraits<blink::WebGLVertexArrayObjectOES::VertexAttribState> { | |
| 113 // Specialization needed as the VertexAttribState's struct fields | |
| 114 // aren't handled as desired by the IsPod() trait. | |
| 115 #if ENABLE(OILPAN) | |
| 116 static const bool needsDestruction = false; | |
| 117 #endif | |
| 118 // Must use the constructor. | |
| 119 static const bool canInitializeWithMemset = false; | |
| 120 static const bool canCopyWithMemcpy = true; | |
| 121 }; | |
| 122 | |
| 123 } // namespace WTF | |
| 124 | |
| 125 #endif // SKY_ENGINE_CORE_HTML_CANVAS_WEBGLVERTEXARRAYOBJECTOES_H_ | |
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