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
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17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 #ifndef WebGLTexture_h
27 #define WebGLTexture_h
29 #include "WebGLObject.h"
31 #include <wtf/PassRefPtr.h>
32 #include <wtf/RefCounted.h>
33 #include <wtf/Vector.h>
37 class WebGLTexture : public WebGLObject {
39 virtual ~WebGLTexture() { deleteObject(); }
41 static PassRefPtr<WebGLTexture> create(WebGLRenderingContext*);
43 void setTarget(unsigned long target, int maxLevel);
44 void setParameteri(unsigned long pname, int param);
45 void setParameterf(unsigned long pname, float param);
47 void setLevelInfo(unsigned long target, int level, unsigned long internalFormat, int width, int height, unsigned long type);
49 bool canGenerateMipmaps();
50 // Generate all level information.
51 void generateMipmapLevelInfo();
53 unsigned long getInternalFormat(int level) const;
55 // Whether width/height is NotPowerOfTwo.
56 static bool isNPOT(unsigned, unsigned);
59 // Determine if texture sampling should always return [0, 0, 0, 1] (OpenGL ES 2.0 Sec 3.8.2).
60 bool needToUseBlackTexture() const;
62 static int computeLevelCount(int width, int height);
65 WebGLTexture(WebGLRenderingContext*);
67 virtual void deleteObjectImpl(Platform3DObject);
70 virtual bool isTexture() const { return true; }
74 int mapTargetToIndex(unsigned long);
76 unsigned long m_target;
94 void setInfo(unsigned long internalFmt, int w, int h, unsigned long tp)
97 internalFormat = internalFmt;
104 unsigned long internalFormat;
110 Vector<Vector<LevelInfo> > m_info;
114 bool m_needToUseBlackTexture;
117 } // namespace WebCore
119 #endif // WebGLTexture_h