1 2 #ifndef IMAGE_H 3 #define IMAGE_H 4 5 extern int image_width, image_height; 6 7 unsigned char *Image_GenerateNoTexture(void); 8 9 // swizzle components (even converting number of components) and flip images 10 // (warning: input must be different than output due to non-linear read/write) 11 // (tip: component indices can contain values | 0x80000000 to tell it to 12 // store them directly into output, so 255 | 0x80000000 would write 255) 13 void Image_CopyMux(unsigned char *outpixels, const unsigned char *inpixels, int inputwidth, int inputheight, qboolean inputflipx, qboolean inputflipy, qboolean inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices); 14 15 // applies gamma correction to RGB pixels, in can be the same as out 16 void Image_GammaRemapRGB(const unsigned char *in, unsigned char *out, int pixels, const unsigned char *gammar, const unsigned char *gammag, const unsigned char *gammab); 17 18 // converts 8bit image data to BGRA, in can not be the same as out 19 void Image_Copy8bitBGRA(const unsigned char *in, unsigned char *out, int pixels, const unsigned int *pal); 20 21 void Image_StripImageExtension (const char *in, char *out, size_t size_out); 22 23 // called by conchars.tga loader in gl_draw.c, otherwise private 24 unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize, int *miplevel); 25 26 // loads a texture, as pixel data 27 unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qboolean allowFixtrans, qboolean convertsRGB, int *miplevel); 28 29 // searches for lmp and wad pics of the provided name and returns true and their dimensions if found 30 qboolean Image_GetStockPicSize(const char *filename, int *returnwidth, int *returnheight); 31 32 // loads an 8bit pcx image into a 296x194x8bit buffer, with cropping as needed 33 qboolean LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pixels, int outwidth, int outheight); 34 35 // loads the palette from an 8bit pcx image into your provided array 36 qboolean LoadPCX_PaletteOnly(const unsigned char *f, int filesize, unsigned char *palette768b); 37 38 // get the metadata from a Quake2 wal file 39 qboolean LoadWAL_GetMetadata(const unsigned char *f, int filesize, int *retwidth, int *retheight, int *retflags, int *retvalue, int *retcontents, char *retanimname32c); 40 41 // loads a texture, as a texture 42 rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, qboolean complain, int flags, qboolean allowFixtrans, qboolean sRGB); 43 44 // writes an upside down BGR image into a TGA 45 qboolean Image_WriteTGABGR_preflipped (const char *filename, int width, int height, const unsigned char *data); 46 47 // writes a BGRA image into a TGA file 48 qboolean Image_WriteTGABGRA (const char *filename, int width, int height, const unsigned char *data); 49 50 // resizes the image (in can not be the same as out) 51 void Image_Resample32(const void *indata, int inwidth, int inheight, int indepth, void *outdata, int outwidth, int outheight, int outdepth, int quality); 52 53 // scales the image down by a power of 2 (in can be the same as out) 54 void Image_MipReduce32(const unsigned char *in, unsigned char *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth); 55 56 void Image_HeightmapToNormalmap_BGRA(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale); 57 58 // console command to fix the colors of transparent pixels (to prevent weird borders) 59 void Image_FixTransparentPixels_f(void); 60 extern cvar_t r_fixtrans_auto; 61 62 #define Image_LinearFloatFromsRGBFloat(c) (((c) <= 0.04045f) ? (c) * (1.0f / 12.92f) : (float)pow(((c) + 0.055f)*(1.0f/1.055f), 2.4f)) 63 #define Image_sRGBFloatFromLinearFloat(c) (((c) < 0.0031308f) ? (c) * 12.92f : 1.055f * (float)pow((c), 1.0f/2.4f) - 0.055f) 64 #define Image_LinearFloatFromsRGB(c) Image_LinearFloatFromsRGBFloat((c) * (1.0f / 255.0f)) 65 #define Image_sRGBFloatFromLinear(c) Image_sRGBFloatFromLinearFloat((c) * (1.0f / 255.0f)) 66 #define Image_sRGBFloatFromLinear_Lightmap(c) Image_sRGBFloatFromLinearFloat((c) * (2.0f / 255.0f)) * 0.5f 67 68 void Image_MakeLinearColorsFromsRGB(unsigned char *pout, const unsigned char *pin, int numpixels); 69 void Image_MakesRGBColorsFromLinear_Lightmap(unsigned char *pout, const unsigned char *pin, int numpixels); 70 71 #endif 72 73