D:/SoftwareEntwicklung/C++/HLC/Tools/SoftPixelEngine/repository/sources/FileFormats/Image/spImageLoaderDDS.hpp
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00001 /* 00002 * Image loader DDS header 00003 * 00004 * This file is part of the "SoftPixel Engine" (Copyright (c) 2008 by Lukas Hermanns) 00005 * See "SoftPixelEngine.hpp" for license information. 00006 */ 00007 00008 #ifndef __SP_IMAGELOADER_DDS_H__ 00009 #define __SP_IMAGELOADER_DDS_H__ 00010 00011 00012 #include "Base/spStandard.hpp" 00013 00014 #ifdef SP_COMPILE_WITH_TEXLOADER_DDS 00015 00016 00017 #include "FileFormats/Image/spImageFormatInterfaces.hpp" 00018 00019 00020 namespace sp 00021 { 00022 namespace video 00023 { 00024 00025 00026 class SP_EXPORT ImageLoaderDDS : public ImageLoader 00027 { 00028 00029 public: 00030 00031 ImageLoaderDDS(io::File* File); 00032 ~ImageLoaderDDS(); 00033 00034 SImageDataRead* loadImageData(); 00035 00036 private: 00037 00038 /* Enumerations */ 00039 00040 enum EFourCCTypesDDS 00041 { 00042 FOURCC_NONE, 00043 FOURCC_DXT1, 00044 FOURCC_DXT2, 00045 FOURCC_DXT3, 00046 FOURCC_DXT4, 00047 FOURCC_DXT5, 00048 FOURCC_DX10, 00049 FOURCC_BC4U, 00050 FOURCC_BC4S, 00051 FOURCC_BC5S, 00052 FOURCC_ATI2, 00053 FOURCC_RGBG, 00054 FOURCC_GRGB, 00055 FOURCC_UYVY, 00056 FOURCC_YUY2, 00057 FOURCC_36, 00058 FOURCC_110, 00059 FOURCC_111, 00060 FOURCC_112, 00061 FOURCC_113, 00062 FOURCC_114, 00063 FOURCC_115, 00064 FOURCC_116, 00065 FOURCC_117, 00066 }; 00067 00068 enum EImageFlagsDDS 00069 { 00070 // Main flags 00071 DDSFLAG_MIPMAPS = 0x00020000, 00072 DDSFLAG_DEPTH = 0x00800000, 00073 00074 // Format flags 00075 DDSFLAG_ALPHA = 0x00000001, 00076 DDSFLAG_COMPRESSED = 0x00000004, 00077 00078 // Cube map flags 00079 DDSFLAG_CUBEMAP = 0x00000200, 00080 }; 00081 00082 /* Structures */ 00083 00084 #if defined(_MSC_VER) 00085 # pragma pack(push, packing) 00086 # pragma pack(1) 00087 # define SP_PACK_STRUCT 00088 #elif defined(__GNUC__) 00089 # define SP_PACK_STRUCT __attribute__((packed)) 00090 #else 00091 # define SP_PACK_STRUCT 00092 #endif 00093 00094 struct SPixelFormatDDS 00095 { 00096 s32 StructSize; 00097 s32 Flags; 00098 s32 FourCC; 00099 s32 RGBBitCount; 00100 s32 RBitMask; 00101 s32 GBitMask; 00102 s32 BBitMask; 00103 s32 ABitMask; 00104 } 00105 SP_PACK_STRUCT; 00106 00107 struct SHeaderDDS 00108 { 00109 s32 StructSize; 00110 s32 Flags; 00111 s32 Height; 00112 s32 Width; 00113 s32 Pitch; 00114 s32 Depth; 00115 s32 MipMapCount; 00116 s32 Reserved1[11]; 00117 SPixelFormatDDS Format; 00118 s32 SurfaceFlags; 00119 s32 CubeMapFlags; 00120 s32 Reserved2[3]; 00121 } 00122 SP_PACK_STRUCT; 00123 00124 struct SHeaderDX10DDS 00125 { 00126 s32 Format; 00127 s32 Dimension; 00128 u32 MiscFlag; 00129 u32 ArraySize; 00130 u32 Reserved; 00131 } 00132 SP_PACK_STRUCT; 00133 00134 #ifdef _MSC_VER 00135 # pragma pack(pop, packing) 00136 #endif 00137 00138 #undef SP_PACK_STRUCT 00139 00140 /* Functions */ 00141 00142 bool readHeader(); 00143 bool readBody(); 00144 00145 bool updateFourCCType(); 00146 00147 bool readUncompressed(); 00148 bool readCompressed(); 00149 00150 video::color get16BitColor(u16 Color) const; 00151 video::color getInterpolatedColor(const video::color &ColorA, const video::color &ColorB) const; 00152 00153 u8 calcColorProc1(s32 c0, s32 c1) const; 00154 u8 calcColorProc2(s32 c0, s32 c1) const; 00155 00156 u8 get4BitAlpha(u32 &BitAlpha) const; 00157 00158 /* Members */ 00159 00160 SHeaderDDS MainHeader_; 00161 SHeaderDX10DDS MainHeaderEx_; 00162 00163 bool isHeaderDX10_; 00164 bool isMipMapped_; 00165 bool isDepth_; 00166 bool isAlpha_; 00167 bool isCompressed_; 00168 bool isCubeMap_; 00169 00170 EFourCCTypesDDS FourCC_; 00171 io::stringc FourCCName_; 00172 00173 SImageDataRead* TexData_; 00174 u32 ImageBufferSize_; 00175 00176 }; 00177 00178 00179 } // /namespace video 00180 00181 } // /namespace sp 00182 00183 00184 #endif 00185 00186 #endif 00187 00188 00189 00190 // ================================================================================
