2 * Copyright (C) 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
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16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 #ifndef WebGLTexture_h
27 #define WebGLTexture_h
29 #include "CanvasObject.h"
31 #include <wtf/PassRefPtr.h>
32 #include <wtf/RefCounted.h>
33 #include <wtf/Vector.h>
37 class WebGLTexture : public CanvasObject {
39 virtual ~WebGLTexture() { deleteObject(); }
41 static PassRefPtr<WebGLTexture> create(WebGLRenderingContext*);
43 bool isCubeMapRWrapModeInitialized() {
44 return cubeMapRWrapModeInitialized;
47 void setCubeMapRWrapModeInitialized(bool initialized) {
48 cubeMapRWrapModeInitialized = initialized;
51 void setTarget(unsigned long target, int maxLevel);
52 void setParameteri(unsigned long pname, int param);
53 void setParameterf(unsigned long pname, float param);
55 void setLevelInfo(unsigned long target, int level, unsigned long internalFormat, int width, int height, unsigned long type);
57 bool canGenerateMipmaps();
58 // Generate all level information.
59 void generateMipmapLevelInfo();
61 unsigned long getInternalFormat() const;
63 // Whether width/height is NotPowerOfTwo.
64 static bool isNPOT(unsigned, unsigned);
67 // Determine if texture sampling should always return [0, 0, 0, 1] (OpenGL ES 2.0 Sec 3.8.2).
68 bool needToUseBlackTexture() const;
70 static int computeLevelCount(int width, int height);
73 WebGLTexture(WebGLRenderingContext*);
75 virtual void _deleteObject(Platform3DObject);
78 virtual bool isTexture() const { return true; }
82 int mapTargetToIndex(unsigned long);
84 bool cubeMapRWrapModeInitialized;
86 unsigned long m_target;
104 void setInfo(unsigned long internalFmt, int w, int h, unsigned long tp)
107 internalFormat = internalFmt;
114 unsigned long internalFormat;
120 Vector<Vector<LevelInfo> > m_info;
124 bool m_needToUseBlackTexture;
127 } // namespace WebCore
129 #endif // WebGLTexture_h