2 * Copyright (C) 2009 Apple Inc. All rights reserved.
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5 * modification, are permitted provided that the following conditions
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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(GC3Denum target, GC3Dint maxLevel);
44 void setParameteri(GC3Denum pname, GC3Dint param);
45 void setParameterf(GC3Denum pname, GC3Dfloat param);
47 GC3Denum getTarget() const { return m_target; }
49 int getMinFilter() const { return m_minFilter; }
51 void setLevelInfo(GC3Denum target, GC3Dint level, GC3Denum internalFormat, GC3Dsizei width, GC3Dsizei height, GC3Denum type);
53 bool canGenerateMipmaps();
54 // Generate all level information.
55 void generateMipmapLevelInfo();
57 GC3Denum getInternalFormat(GC3Denum target, GC3Dint level) const;
58 GC3Denum getType(GC3Denum target, GC3Dint level) const;
59 GC3Dsizei getWidth(GC3Denum target, GC3Dint level) const;
60 GC3Dsizei getHeight(GC3Denum target, GC3Dint level) const;
62 // Whether width/height is NotPowerOfTwo.
63 static bool isNPOT(GC3Dsizei, GC3Dsizei);
66 // Determine if texture sampling should always return [0, 0, 0, 1] (OpenGL ES 2.0 Sec 3.8.2).
67 bool needToUseBlackTexture() const;
69 bool hasEverBeenBound() const { return object() && m_target; }
71 static GC3Dint computeLevelCount(GC3Dsizei width, GC3Dsizei height);
74 WebGLTexture(WebGLRenderingContext*);
76 virtual void deleteObjectImpl(Platform3DObject);
90 void setInfo(GC3Denum internalFmt, GC3Dsizei w, GC3Dsizei h, GC3Denum tp)
93 internalFormat = internalFmt;
100 GC3Denum internalFormat;
106 virtual bool isTexture() const { return true; }
110 int mapTargetToIndex(GC3Denum) const;
112 const LevelInfo* getLevelInfo(GC3Denum target, GC3Dint level) const;
116 GC3Denum m_minFilter;
117 GC3Denum m_magFilter;
121 Vector<Vector<LevelInfo> > m_info;
125 bool m_needToUseBlackTexture;
128 } // namespace WebCore
130 #endif // WebGLTexture_h