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| 1 | bool Texture::loadTexture2D(std::string _file, bool generateMipmaps) | |
| 2 | {
| |
| 3 | Logger::getInstance()->write(StringUtils::format("Loading texture '%s'", _file.c_str()));
| |
| 4 | ||
| 5 | is3D = false; | |
| 6 | ||
| 7 | FREE_IMAGE_FORMAT fifmt = FreeImage_GetFileType(_file.c_str(), 0); | |
| 8 | FIBITMAP *dib = FreeImage_Load(fifmt, _file.c_str(),0); | |
| 9 | FreeImage_SetTransparent(dib,true); | |
| 10 | dib = FreeImage_ConvertTo32Bits(dib); | |
| 11 | ||
| 12 | if( dib != NULL ) | |
| 13 | {
| |
| 14 | glGenTextures(1, &textureId); | |
| 15 | glBindTexture(GL_TEXTURE_2D, textureId); | |
| 16 | ||
| 17 | BYTE *bytes = new BYTE[FreeImage_GetWidth(dib) * FreeImage_GetHeight(dib) * 4]; | |
| 18 | ||
| 19 | width = FreeImage_GetWidth(dib); | |
| 20 | height = FreeImage_GetHeight(dib); | |
| 21 | ||
| 22 | BYTE *pixels = (BYTE*)FreeImage_GetBits(dib); | |
| 23 | ||
| 24 | for(unsigned int pixel = 0; pixel < FreeImage_GetWidth(dib) * FreeImage_GetHeight(dib); pixel++) | |
| 25 | {
| |
| 26 | bytes[pixel*3+0] = pixels[pixel*3+2]; | |
| 27 | bytes[pixel*3+1] = pixels[pixel*3+1]; | |
| 28 | bytes[pixel*3+2] = pixels[pixel*3+0]; | |
| 29 | bytes[pixel*3+3] = pixels[pixel*3+3]; | |
| 30 | } | |
| 31 | ||
| 32 | glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, FreeImage_GetWidth(dib), FreeImage_GetHeight(dib), 0, | |
| 33 | GL_RGBA, GL_UNSIGNED_BYTE, bytes); | |
| 34 | ||
| 35 | bitsPerPixel = FreeImage_GetBPP(dib); | |
| 36 | ||
| 37 | if(generateMipmaps) | |
| 38 | {
| |
| 39 | glGenerateMipmap(GL_TEXTURE_2D); | |
| 40 | mipMapsGenerated = true; | |
| 41 | } | |
| 42 | ||
| 43 | glGenSamplers(1, &samplerId); | |
| 44 | ||
| 45 | FreeImage_Unload(dib); | |
| 46 | delete bytes; | |
| 47 | ||
| 48 | setFiltering(TextureFiltering::TEXTURE_FILTER_MAG_BILINEAR, TextureFiltering::TEXTURE_FILTER_MIN_BILINEAR); | |
| 49 | setSamplerParameter(GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | |
| 50 | setSamplerParameter(GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | |
| 51 | ||
| 52 | Logger::getInstance()->write(StringUtils::format("Loaded texture '%s'", _file.c_str()));
| |
| 53 | ||
| 54 | return true; | |
| 55 | } | |
| 56 | ||
| 57 | Logger::getInstance()->write(StringUtils::format("Error loading texture '%s'", _file.c_str()));
| |
| 58 | ||
| 59 | return false; | |
| 60 | } | |
| 61 | ||
| 62 | void Texture::setFiltering(TextureFiltering::_TextureFiltering _tfMagnification, TextureFiltering::_TextureFiltering _tfMinification) | |
| 63 | {
| |
| 64 | if(_tfMagnification == TextureFiltering::TEXTURE_FILTER_MAG_NEAREST) | |
| 65 | {
| |
| 66 | glSamplerParameteri(samplerId, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | |
| 67 | } | |
| 68 | else if(_tfMagnification == TextureFiltering::TEXTURE_FILTER_MAG_BILINEAR) | |
| 69 | {
| |
| 70 | glSamplerParameteri(samplerId, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | |
| 71 | } | |
| 72 | ||
| 73 | if(_tfMinification == TextureFiltering::TEXTURE_FILTER_MIN_NEAREST) | |
| 74 | {
| |
| 75 | glSamplerParameteri(samplerId, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | |
| 76 | } | |
| 77 | else if(_tfMinification == TextureFiltering::TEXTURE_FILTER_MIN_BILINEAR) | |
| 78 | {
| |
| 79 | glSamplerParameteri(samplerId, GL_TEXTURE_MIN_FILTER, GL_LINEAR); | |
| 80 | } | |
| 81 | else if(_tfMinification == TextureFiltering::TEXTURE_FILTER_MIN_NEAREST_MIPMAP) | |
| 82 | {
| |
| 83 | glSamplerParameteri(samplerId, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST); | |
| 84 | } | |
| 85 | else if(_tfMinification == TextureFiltering::TEXTURE_FILTER_MIN_BILINEAR_MIPMAP) | |
| 86 | {
| |
| 87 | glSamplerParameteri(samplerId, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); | |
| 88 | } | |
| 89 | else if(_tfMinification == TextureFiltering::TEXTURE_FILTER_MIN_TRILINEAR) | |
| 90 | {
| |
| 91 | glSamplerParameteri(samplerId, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); | |
| 92 | } | |
| 93 | ||
| 94 | tfMinification = _tfMinification; | |
| 95 | tfMagnification = _tfMagnification; | |
| 96 | } | |
| 97 | ||
| 98 | void Texture::setSamplerParameter(GLenum parameter, GLenum value) | |
| 99 | {
| |
| 100 | glSamplerParameteri(samplerId, parameter, value); | |
| 101 | } |
