| 1 | #include <vr3d/vrTexture3D.h> |
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| 2 | |
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| 3 | #include <string.h> |
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| 4 | #include <math.h> |
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| 5 | #include <valarray> |
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| 6 | |
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| 7 | #ifndef OPENGLES |
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| 8 | #ifdef _WIN32 |
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| 9 | inline unsigned int log2(unsigned int x) |
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| 10 | { |
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| 11 | unsigned int i = 0; |
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| 12 | while ( ( x = ( x >> 1 ) ) != 0 ) i++; |
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| 13 | return i; |
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| 14 | } |
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| 15 | #endif |
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| 16 | |
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| 17 | |
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| 18 | vrTexture3D::vrTexture3D() |
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| 19 | : _width(0), _height(0), _depth(0) |
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| 20 | { |
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| 21 | _target = TT_TEXTURE_3D; |
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| 22 | _wrapT = TW_CLAMP_TO_EDGE; |
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| 23 | _wrapS =TW_CLAMP_TO_EDGE; |
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| 24 | } |
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| 25 | |
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| 26 | vrTexture3D::~vrTexture3D() |
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| 27 | { |
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| 28 | |
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| 29 | } |
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| 30 | |
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| 31 | void vrTexture3D::setPixels(COLORFORMAT colorFormat, DATATYPE type, int width, int height, int depth, void* data) |
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| 32 | { |
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| 33 | setPixels(TT_TEXTURE_3D, colorFormat, colorFormat, type, width, height, depth, data); |
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| 34 | } |
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| 35 | |
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| 36 | void vrTexture3D::setPixels(TEXTARGET target, COLORFORMAT internalColorFormat, COLORFORMAT colorFormat, DATATYPE type, int width, int height, int depth, void* data) |
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| 37 | { |
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| 38 | _target = target; |
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| 39 | _width = width; |
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| 40 | _height = height; |
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| 41 | _depth = depth; |
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| 42 | _type = type; |
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| 43 | _internalColorFormat = internalColorFormat; |
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| 44 | _colorFormat = colorFormat; |
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| 45 | _compCount = GetNumComponent(_colorFormat); |
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| 46 | |
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| 47 | if (_objectID) |
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| 48 | { |
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| 49 | glDeleteTextures(1, &_objectID); |
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| 50 | } |
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| 51 | |
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| 52 | //glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
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| 53 | glGenTextures(1, &_objectID); |
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| 54 | glBindTexture(_target, _objectID); |
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| 55 | glTexImage3D(_target, 0, _internalColorFormat, _width, _height, _depth, 0, _colorFormat, _type, data) ; |
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| 56 | glTexParameteri(_target, GL_TEXTURE_MAG_FILTER, _magFilter); |
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| 57 | glTexParameteri(_target, GL_TEXTURE_MIN_FILTER, _minFilter); |
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| 58 | |
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| 59 | //TBD.. |
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| 60 | glTexParameterf(_target, GL_TEXTURE_WRAP_S, _wrapS); |
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| 61 | glTexParameterf(_target, GL_TEXTURE_WRAP_T, _wrapT); |
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| 62 | |
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| 63 | |
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| 64 | } |
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| 65 | |
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| 66 | void vrTexture3D::updatePixels(void* data) |
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| 67 | { |
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| 68 | glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
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| 69 | glBindTexture(_target, _objectID); |
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| 70 | glTexParameteri(_target, GL_TEXTURE_WRAP_S, _wrapS); |
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| 71 | glTexParameteri(_target, GL_TEXTURE_WRAP_T, _wrapT); |
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| 72 | glTexParameteri(_target, GL_TEXTURE_MAG_FILTER, _magFilter); |
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| 73 | glTexParameteri(_target, GL_TEXTURE_MIN_FILTER, _minFilter); |
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| 74 | glTexImage3D(_target, 0, _internalColorFormat, _width, _height, _depth, 0, _colorFormat, _type, data); |
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| 75 | /* |
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| 76 | glBindTexture(_target, _objectID); |
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| 77 | glTexSubImage3D(_target, |
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| 78 | 0, |
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| 79 | 0, |
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| 80 | 0, |
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| 81 | 0, |
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| 82 | _width, |
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| 83 | _height, |
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| 84 | _depth, |
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| 85 | _colorFormat, |
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| 86 | _type, |
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| 87 | data); |
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| 88 | */ |
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| 89 | } |
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| 90 | |
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| 91 | #endif |
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