X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=image.c;h=968fabf6381eedd52aa92d3f8c8ff3741ee8766c;hp=0abe8d04c3c66472fd7998b96624ced93c85a67e;hb=980ac035e70ad26a44913dabebe4be5726f966ac;hpb=01179863ff1eb63c5ff88c7019f9b3869ecbf2ff diff --git a/image.c b/image.c index 0abe8d04..968fabf6 100644 --- a/image.c +++ b/image.c @@ -1,11 +1,108 @@ #include "quakedef.h" #include "image.h" +#include "jpeg.h" +#include "image_png.h" +#include "r_shadow.h" int image_width; int image_height; -void Image_GammaRemapRGB(const qbyte *in, qbyte *out, int pixels, const qbyte *gammar, const qbyte *gammag, const qbyte *gammab) +#if 1 +// written by LordHavoc in a readable way, optimized by Vic, further optimized by LordHavoc (the non-special index case), readable version preserved below this +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) +{ + int index, c, x, y; + const unsigned char *in, *line; + int row_inc = (inputflipy ? -inputwidth : inputwidth) * numinputcomponents, col_inc = (inputflipx ? -1 : 1) * numinputcomponents; + int row_ofs = (inputflipy ? (inputheight - 1) * inputwidth * numinputcomponents : 0), col_ofs = (inputflipx ? (inputwidth - 1) * numinputcomponents : 0); + + for (c = 0; c < numoutputcomponents; c++) + if (outputinputcomponentindices[c] & 0x80000000) + break; + if (c < numoutputcomponents) + { + // special indices used + if (inputflipdiagonal) + { + for (x = 0, line = inpixels + col_ofs; x < inputwidth; x++, line += col_inc) + for (y = 0, in = line + row_ofs; y < inputheight; y++, in += row_inc, outpixels += numoutputcomponents) + for (c = 0; c < numoutputcomponents; c++) + outpixels[c] = ((index = outputinputcomponentindices[c]) & 0x80000000) ? index : in[index]; + } + else + { + for (y = 0, line = inpixels + row_ofs; y < inputheight; y++, line += row_inc) + for (x = 0, in = line + col_ofs; x < inputwidth; x++, in += col_inc, outpixels += numoutputcomponents) + for (c = 0; c < numoutputcomponents; c++) + outpixels[c] = ((index = outputinputcomponentindices[c]) & 0x80000000) ? index : in[index]; + } + } + else + { + // special indices not used + if (inputflipdiagonal) + { + for (x = 0, line = inpixels + col_ofs; x < inputwidth; x++, line += col_inc) + for (y = 0, in = line + row_ofs; y < inputheight; y++, in += row_inc, outpixels += numoutputcomponents) + for (c = 0; c < numoutputcomponents; c++) + outpixels[c] = in[outputinputcomponentindices[c]]; + } + else + { + for (y = 0, line = inpixels + row_ofs; y < inputheight; y++, line += row_inc) + for (x = 0, in = line + col_ofs; x < inputwidth; x++, in += col_inc, outpixels += numoutputcomponents) + for (c = 0; c < numoutputcomponents; c++) + outpixels[c] = in[outputinputcomponentindices[c]]; + } + } +} +#else +// intentionally readable version +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) +{ + int index, c, x, y; + const unsigned char *in, *inrow, *incolumn; + if (inputflipdiagonal) + { + for (x = 0;x < inputwidth;x++) + { + for (y = 0;y < inputheight;y++) + { + in = inpixels + ((inputflipy ? inputheight - 1 - y : y) * inputwidth + (inputflipx ? inputwidth - 1 - x : x)) * numinputcomponents; + for (c = 0;c < numoutputcomponents;c++) + { + index = outputinputcomponentindices[c]; + if (index & 0x80000000) + *outpixels++ = index; + else + *outpixels++ = in[index]; + } + } + } + } + else + { + for (y = 0;y < inputheight;y++) + { + for (x = 0;x < inputwidth;x++) + { + in = inpixels + ((inputflipy ? inputheight - 1 - y : y) * inputwidth + (inputflipx ? inputwidth - 1 - x : x)) * numinputcomponents; + for (c = 0;c < numoutputcomponents;c++) + { + index = outputinputcomponentindices[c]; + if (index & 0x80000000) + *outpixels++ = index; + else + *outpixels++ = in[index]; + } + } + } + } +} +#endif + +void Image_GammaRemapRGB(const unsigned char *in, unsigned char *out, int pixels, const unsigned char *gammar, const unsigned char *gammag, const unsigned char *gammab) { while (pixels--) { @@ -18,9 +115,9 @@ void Image_GammaRemapRGB(const qbyte *in, qbyte *out, int pixels, const qbyte *g } // note: pal must be 32bit color -void Image_Copy8bitRGBA(const qbyte *in, qbyte *out, int pixels, const unsigned int *pal) +void Image_Copy8bitBGRA(const unsigned char *in, unsigned char *out, int pixels, const unsigned int *pal) { - int *iout = (void *)out; + int *iout = (int *)out; while (pixels >= 8) { iout[0] = pal[in[0]]; @@ -63,7 +160,7 @@ void Image_Copy8bitRGBA(const qbyte *in, qbyte *out, int pixels, const unsigned ================================================================= */ -typedef struct +typedef struct pcx_s { char manufacturer; char version; @@ -84,16 +181,16 @@ typedef struct LoadPCX ============ */ -qbyte* LoadPCX (const qbyte *f, int matchwidth, int matchheight) +unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize) { pcx_t pcx; - qbyte *a, *b, *image_rgba, *pbuf; - const qbyte *palette, *fin, *enddata; + unsigned char *a, *b, *image_buffer, *pbuf; + const unsigned char *palette, *fin, *enddata; int x, y, x2, dataByte; - if (loadsize < (int)sizeof(pcx) + 768) + if (filesize < (int)sizeof(pcx) + 768) { - Con_Printf ("Bad pcx file\n"); + Con_Print("Bad pcx file\n"); return NULL; } @@ -112,33 +209,23 @@ qbyte* LoadPCX (const qbyte *f, int matchwidth, int matchheight) pcx.bytes_per_line = LittleShort (pcx.bytes_per_line); pcx.palette_type = LittleShort (pcx.palette_type); - if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || pcx.xmax > 320 || pcx.ymax > 256) - { - Con_Printf ("Bad pcx file\n"); - return NULL; - } - - if (matchwidth && (pcx.xmax+1) != matchwidth) - { - return NULL; - } - if (matchheight && (pcx.ymax+1) != matchheight) + image_width = pcx.xmax + 1 - pcx.xmin; + image_height = pcx.ymax + 1 - pcx.ymin; + if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0) { + Con_Print("Bad pcx file\n"); return NULL; } - image_width = pcx.xmax+1; - image_height = pcx.ymax+1; - - palette = f + loadsize - 768; + palette = f + filesize - 768; - image_rgba = Mem_Alloc(tempmempool, image_width*image_height*4); - if (!image_rgba) + image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width*image_height*4); + if (!image_buffer) { Con_Printf("LoadPCX: not enough memory for %i by %i image\n", image_width, image_height); return NULL; } - pbuf = image_rgba + image_width*image_height*3; + pbuf = image_buffer + image_width*image_height*3; enddata = palette; for (y = 0;y < image_height && fin < enddata;y++) @@ -161,24 +248,102 @@ qbyte* LoadPCX (const qbyte *f, int matchwidth, int matchheight) else a[x++] = dataByte; } - fin += pcx.bytes_per_line - image_width; // the number of bytes per line is always forced to an even number while(x < image_width) a[x++] = 0; } - a = image_rgba; + a = image_buffer; b = pbuf; for(x = 0;x < image_width*image_height;x++) { y = *b++ * 3; - *a++ = palette[y]; - *a++ = palette[y+1]; *a++ = palette[y+2]; + *a++ = palette[y+1]; + *a++ = palette[y]; *a++ = 255; } - return image_rgba; + return image_buffer; +} + +/* +============ +LoadPCX +============ +*/ +qboolean LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pixels, int outwidth, int outheight) +{ + pcx_t pcx; + unsigned char *a; + const unsigned char *fin, *enddata; + int x, y, x2, dataByte, pcxwidth, pcxheight; + + if (filesize < (int)sizeof(pcx) + 768) + return false; + + image_width = outwidth; + image_height = outheight; + fin = f; + + memcpy(&pcx, fin, sizeof(pcx)); + fin += sizeof(pcx); + + // LordHavoc: big-endian support ported from QF newtree + pcx.xmax = LittleShort (pcx.xmax); + pcx.xmin = LittleShort (pcx.xmin); + pcx.ymax = LittleShort (pcx.ymax); + pcx.ymin = LittleShort (pcx.ymin); + pcx.hres = LittleShort (pcx.hres); + pcx.vres = LittleShort (pcx.vres); + pcx.bytes_per_line = LittleShort (pcx.bytes_per_line); + pcx.palette_type = LittleShort (pcx.palette_type); + + pcxwidth = pcx.xmax + 1 - pcx.xmin; + pcxheight = pcx.ymax + 1 - pcx.ymin; + if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || pcxwidth > 4096 || pcxheight > 4096 || pcxwidth <= 0 || pcxheight <= 0) + return false; + + enddata = f + filesize - 768; + + for (y = 0;y < outheight && fin < enddata;y++) + { + a = pixels + y * outwidth; + // pad the output with blank lines if needed + if (y >= pcxheight) + { + memset(a, 0, outwidth); + continue; + } + for (x = 0;x < pcxwidth;) + { + if (fin >= enddata) + return false; + dataByte = *fin++; + if(dataByte >= 0xC0) + { + x2 = x + (dataByte & 0x3F); + if (fin >= enddata) + return false; + if (x2 > pcxwidth) + return false; + dataByte = *fin++; + for (;x < x2;x++) + if (x < outwidth) + a[x] = dataByte; + } + else + { + if (x < outwidth) // truncate to destination width + a[x] = dataByte; + x++; + } + } + while(x < outwidth) + a[x++] = 0; + } + + return true; } /* @@ -201,19 +366,7 @@ TargaHeader; void PrintTargaHeader(TargaHeader *t) { - Con_Printf("TargaHeader:\n"); - Con_Printf("uint8 id_length = %i;\n", t->id_length); - Con_Printf("uint8 colormap_type = %i;\n", t->colormap_type); - Con_Printf("uint8 image_type = %i;\n", t->image_type); - Con_Printf("uint16 colormap_index = %i;\n", t->colormap_index); - Con_Printf("uint16 colormap_length = %i;\n", t->colormap_length); - Con_Printf("uint8 colormap_size = %i;\n", t->colormap_size); - Con_Printf("uint16 x_origin = %i;\n", t->x_origin); - Con_Printf("uint16 y_origin = %i;\n", t->y_origin); - Con_Printf("uint16 width = %i;\n", t->width); - Con_Printf("uint16 height = %i;\n", t->height); - Con_Printf("uint8 pixel_size = %i;\n", t->pixel_size); - Con_Printf("uint8 attributes = %i;\n", t->attributes); + Con_Printf("TargaHeader:\nuint8 id_length = %i;\nuint8 colormap_type = %i;\nuint8 image_type = %i;\nuint16 colormap_index = %i;\nuint16 colormap_length = %i;\nuint8 colormap_size = %i;\nuint16 x_origin = %i;\nuint16 y_origin = %i;\nuint16 width = %i;\nuint16 height = %i;\nuint8 pixel_size = %i;\nuint8 attributes = %i;\n", t->id_length, t->colormap_type, t->image_type, t->colormap_index, t->colormap_length, t->colormap_size, t->x_origin, t->y_origin, t->width, t->height, t->pixel_size, t->attributes); } /* @@ -221,18 +374,25 @@ void PrintTargaHeader(TargaHeader *t) LoadTGA ============= */ -qbyte *LoadTGA (const qbyte *f, int matchwidth, int matchheight) +unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize) { - int x, y, row_inc, compressed, readpixelcount, red, green, blue, alpha, runlen; - qbyte *pixbuf, *image_rgba; - const qbyte *fin, *enddata; + int x, y, pix_inc, row_inci, runlen, alphabits; + unsigned char *image_buffer; + unsigned int *pixbufi; + const unsigned char *fin, *enddata; TargaHeader targa_header; - unsigned char palette[256*4], *p; + unsigned int palettei[256]; + union + { + unsigned int i; + unsigned char b[4]; + } + bgra; - if (loadsize < 19) + if (filesize < 19) return NULL; - enddata = f + loadsize; + enddata = f + filesize; targa_header.id_length = f[0]; targa_header.colormap_type = f[1]; @@ -243,47 +403,38 @@ qbyte *LoadTGA (const qbyte *f, int matchwidth, int matchheight) targa_header.colormap_size = f[7]; targa_header.x_origin = f[8] + f[9] * 256; targa_header.y_origin = f[10] + f[11] * 256; - targa_header.width = f[12] + f[13] * 256; - targa_header.height = f[14] + f[15] * 256; - if (matchwidth && targa_header.width != matchwidth) - return NULL; - if (matchheight && targa_header.height != matchheight) - return NULL; + targa_header.width = image_width = f[12] + f[13] * 256; + targa_header.height = image_height = f[14] + f[15] * 256; targa_header.pixel_size = f[16]; targa_header.attributes = f[17]; - image_width = targa_header.width; - image_height = targa_header.height; - - fin = f + 18; - if (targa_header.id_length != 0) - fin += targa_header.id_length; // skip TARGA image comment - if (targa_header.image_type == 2 || targa_header.image_type == 10) + if (image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0) { - if (targa_header.pixel_size != 24 && targa_header.pixel_size != 32) - { - Con_Printf ("LoadTGA: only 24bit and 32bit pixel sizes supported for type 2 and type 10 images\n"); - PrintTargaHeader(&targa_header); - return NULL; - } + Con_Print("LoadTGA: invalid size\n"); + PrintTargaHeader(&targa_header); + return NULL; } - else if (targa_header.image_type == 1 || targa_header.image_type == 9) + + // advance to end of header + fin = f + 18; + + // skip TARGA image comment (usually 0 bytes) + fin += targa_header.id_length; + + // read/skip the colormap if present (note: according to the TARGA spec it + // can be present even on truecolor or greyscale images, just not used by + // the image data) + if (targa_header.colormap_type) { - if (targa_header.pixel_size != 8) + if (targa_header.colormap_length > 256) { - Con_Printf ("LoadTGA: only 8bit pixel size for type 1, 3, 9, and 11 images supported\n"); - PrintTargaHeader(&targa_header); - return NULL; - } - if (targa_header.colormap_length != 256) - { - Con_Printf ("LoadTGA: only 256 colormap_length supported\n"); + Con_Print("LoadTGA: only up to 256 colormap_length supported\n"); PrintTargaHeader(&targa_header); return NULL; } if (targa_header.colormap_index) { - Con_Printf ("LoadTGA: colormap_index not supported\n"); + Con_Print("LoadTGA: colormap_index not supported\n"); PrintTargaHeader(&targa_header); return NULL; } @@ -291,420 +442,669 @@ qbyte *LoadTGA (const qbyte *f, int matchwidth, int matchheight) { for (x = 0;x < targa_header.colormap_length;x++) { - palette[x*4+2] = *fin++; - palette[x*4+1] = *fin++; - palette[x*4+0] = *fin++; - palette[x*4+3] = 255; + bgra.b[0] = *fin++; + bgra.b[1] = *fin++; + bgra.b[2] = *fin++; + bgra.b[3] = 255; + palettei[x] = bgra.i; } } else if (targa_header.colormap_size == 32) { - for (x = 0;x < targa_header.colormap_length;x++) - { - palette[x*4+2] = *fin++; - palette[x*4+1] = *fin++; - palette[x*4+0] = *fin++; - palette[x*4+3] = *fin++; - } + memcpy(palettei, fin, targa_header.colormap_length*4); + fin += targa_header.colormap_length * 4; } else { - Con_Printf ("LoadTGA: Only 32 and 24 bit colormap_size supported\n"); + Con_Print("LoadTGA: Only 32 and 24 bit colormap_size supported\n"); PrintTargaHeader(&targa_header); return NULL; } } - else if (targa_header.image_type == 3 || targa_header.image_type == 11) + + // check our pixel_size restrictions according to image_type + switch (targa_header.image_type & ~8) { + case 2: + if (targa_header.pixel_size != 24 && targa_header.pixel_size != 32) + { + Con_Print("LoadTGA: only 24bit and 32bit pixel sizes supported for type 2 and type 10 images\n"); + PrintTargaHeader(&targa_header); + return NULL; + } + break; + case 3: + // set up a palette to make the loader easier + for (x = 0;x < 256;x++) + { + bgra.b[0] = bgra.b[1] = bgra.b[2] = x; + bgra.b[3] = 255; + palettei[x] = bgra.i; + } + // fall through to colormap case + case 1: if (targa_header.pixel_size != 8) { - Con_Printf ("LoadTGA: only 8bit pixel size for type 1, 3, 9, and 11 images supported\n"); + Con_Print("LoadTGA: only 8bit pixel size for type 1, 3, 9, and 11 images supported\n"); PrintTargaHeader(&targa_header); return NULL; } - } - else - { - Con_Printf ("LoadTGA: Only type 1, 2, 3, 9, 10, and 11 targa RGB images supported, image_type = %i\n", targa_header.image_type); + break; + default: + Con_Printf("LoadTGA: Only type 1, 2, 3, 9, 10, and 11 targa RGB images supported, image_type = %i\n", targa_header.image_type); PrintTargaHeader(&targa_header); return NULL; } if (targa_header.attributes & 0x10) { - Con_Printf ("LoadTGA: origin must be in top left or bottom left, top right and bottom right are not supported\n"); + Con_Print("LoadTGA: origin must be in top left or bottom left, top right and bottom right are not supported\n"); return NULL; } - image_rgba = Mem_Alloc(tempmempool, image_width * image_height * 4); - if (!image_rgba) + // number of attribute bits per pixel, we only support 0 or 8 + alphabits = targa_header.attributes & 0x0F; + if (alphabits != 8 && alphabits != 0) { - Con_Printf ("LoadTGA: not enough memory for %i by %i image\n", image_width, image_height); + Con_Print("LoadTGA: only 0 or 8 attribute (alpha) bits supported\n"); + return NULL; + } + + image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4); + if (!image_buffer) + { + Con_Printf("LoadTGA: not enough memory for %i by %i image\n", image_width, image_height); return NULL; } // If bit 5 of attributes isn't set, the image has been stored from bottom to top if ((targa_header.attributes & 0x20) == 0) { - pixbuf = image_rgba + (image_height - 1)*image_width*4; - row_inc = -image_width*4*2; + pixbufi = (unsigned int*)image_buffer + (image_height - 1)*image_width; + row_inci = -image_width*2; } else { - pixbuf = image_rgba; - row_inc = 0; + pixbufi = (unsigned int*)image_buffer; + row_inci = 0; } - compressed = targa_header.image_type == 9 || targa_header.image_type == 10 || targa_header.image_type == 11; x = 0; y = 0; - red = green = blue = alpha = 255; - while (y < image_height) + pix_inc = 1; + if ((targa_header.image_type & ~8) == 2) + pix_inc = (targa_header.pixel_size + 7) / 8; + switch (targa_header.image_type) { - // decoder is mostly the same whether it's compressed or not - readpixelcount = 1000000; - runlen = 1000000; - if (compressed && fin < enddata) + case 1: // colormapped, uncompressed + case 3: // greyscale, uncompressed + if (fin + image_width * image_height * pix_inc > enddata) + break; + for (y = 0;y < image_height;y++, pixbufi += row_inci) + for (x = 0;x < image_width;x++) + *pixbufi++ = palettei[*fin++]; + break; + case 2: + // BGR or BGRA, uncompressed + if (fin + image_width * image_height * pix_inc > enddata) + break; + if (targa_header.pixel_size == 32 && alphabits) { - runlen = *fin++; - // high bit indicates this is an RLE compressed run - if (runlen & 0x80) - readpixelcount = 1; - runlen = 1 + (runlen & 0x7f); + for (y = 0;y < image_height;y++) + memcpy(pixbufi + y * (image_width + row_inci), fin + y * image_width * pix_inc, image_width*4); } - - while((runlen--) && y < image_height) + else { - if (readpixelcount > 0) + for (y = 0;y < image_height;y++, pixbufi += row_inci) { - readpixelcount--; - red = green = blue = alpha = 255; - if (fin < enddata) + for (x = 0;x < image_width;x++, fin += pix_inc) { - switch(targa_header.image_type) + bgra.b[0] = fin[0]; + bgra.b[1] = fin[1]; + bgra.b[2] = fin[2]; + bgra.b[3] = 255; + *pixbufi++ = bgra.i; + } + } + } + break; + case 9: // colormapped, RLE + case 11: // greyscale, RLE + for (y = 0;y < image_height;y++, pixbufi += row_inci) + { + for (x = 0;x < image_width;) + { + if (fin >= enddata) + break; // error - truncated file + runlen = *fin++; + if (runlen & 0x80) + { + // RLE - all pixels the same color + runlen += 1 - 0x80; + if (fin + pix_inc > enddata) + break; // error - truncated file + if (x + runlen > image_width) + break; // error - line exceeds width + bgra.i = palettei[*fin++]; + for (;runlen--;x++) + *pixbufi++ = bgra.i; + } + else + { + // uncompressed - all pixels different color + runlen++; + if (fin + pix_inc * runlen > enddata) + break; // error - truncated file + if (x + runlen > image_width) + break; // error - line exceeds width + for (;runlen--;x++) + *pixbufi++ = palettei[*fin++]; + } + } + } + break; + case 10: + // BGR or BGRA, RLE + if (targa_header.pixel_size == 32 && alphabits) + { + for (y = 0;y < image_height;y++, pixbufi += row_inci) + { + for (x = 0;x < image_width;) + { + if (fin >= enddata) + break; // error - truncated file + runlen = *fin++; + if (runlen & 0x80) { - case 1: - case 9: - // colormapped - p = palette + (*fin++) * 4; - red = p[0]; - green = p[1]; - blue = p[2]; - alpha = p[3]; - break; - case 2: - case 10: - // BGR or BGRA - blue = *fin++; - if (fin < enddata) - green = *fin++; - if (fin < enddata) - red = *fin++; - if (targa_header.pixel_size == 32 && fin < enddata) - alpha = *fin++; - break; - case 3: - case 11: - // greyscale - red = green = blue = *fin++; - break; + // RLE - all pixels the same color + runlen += 1 - 0x80; + if (fin + pix_inc > enddata) + break; // error - truncated file + if (x + runlen > image_width) + break; // error - line exceeds width + bgra.b[0] = fin[0]; + bgra.b[1] = fin[1]; + bgra.b[2] = fin[2]; + bgra.b[3] = fin[3]; + fin += pix_inc; + for (;runlen--;x++) + *pixbufi++ = bgra.i; + } + else + { + // uncompressed - all pixels different color + runlen++; + if (fin + pix_inc * runlen > enddata) + break; // error - truncated file + if (x + runlen > image_width) + break; // error - line exceeds width + for (;runlen--;x++) + { + bgra.b[0] = fin[0]; + bgra.b[1] = fin[1]; + bgra.b[2] = fin[2]; + bgra.b[3] = fin[3]; + fin += pix_inc; + *pixbufi++ = bgra.i; + } } } } - *pixbuf++ = red; - *pixbuf++ = green; - *pixbuf++ = blue; - *pixbuf++ = alpha; - x++; - if (x == image_width) + } + else + { + for (y = 0;y < image_height;y++, pixbufi += row_inci) { - // end of line, advance to next - x = 0; - y++; - pixbuf += row_inc; + for (x = 0;x < image_width;) + { + if (fin >= enddata) + break; // error - truncated file + runlen = *fin++; + if (runlen & 0x80) + { + // RLE - all pixels the same color + runlen += 1 - 0x80; + if (fin + pix_inc > enddata) + break; // error - truncated file + if (x + runlen > image_width) + break; // error - line exceeds width + bgra.b[0] = fin[0]; + bgra.b[1] = fin[1]; + bgra.b[2] = fin[2]; + bgra.b[3] = 255; + fin += pix_inc; + for (;runlen--;x++) + *pixbufi++ = bgra.i; + } + else + { + // uncompressed - all pixels different color + runlen++; + if (fin + pix_inc * runlen > enddata) + break; // error - truncated file + if (x + runlen > image_width) + break; // error - line exceeds width + for (;runlen--;x++) + { + bgra.b[0] = fin[0]; + bgra.b[1] = fin[1]; + bgra.b[2] = fin[2]; + bgra.b[3] = 255; + fin += pix_inc; + *pixbufi++ = bgra.i; + } + } + } } } + break; + default: + // unknown image_type + break; } - return image_rgba; + return image_buffer; } -/* -============ -LoadLMP -============ -*/ -qbyte *LoadLMP (const qbyte *f, int matchwidth, int matchheight) +typedef struct q2wal_s +{ + char name[32]; + unsigned width, height; + unsigned offsets[MIPLEVELS]; // four mip maps stored + char animname[32]; // next frame in animation chain + int flags; + int contents; + int value; +} q2wal_t; + +unsigned char *LoadWAL_BGRA (const unsigned char *f, int filesize) { - qbyte *image_rgba; - int width, height; + unsigned char *image_buffer; + const q2wal_t *inwal = (const q2wal_t *)f; - if (loadsize < 9) + if (filesize < (int) sizeof(q2wal_t)) { - Con_Printf("LoadLMP: invalid LMP file\n"); + Con_Print("LoadWAL: invalid WAL file\n"); return NULL; } - // parse the very complicated header *chuckle* - width = f[0] + f[1] * 256 + f[2] * 65536 + f[3] * 16777216; - height = f[4] + f[5] * 256 + f[6] * 65536 + f[7] * 16777216; - if ((unsigned) width > 4096 || (unsigned) height > 4096) + image_width = LittleLong(inwal->width); + image_height = LittleLong(inwal->height); + if (image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0) { - Con_Printf("LoadLMP: invalid size\n"); + Con_Printf("LoadWAL: invalid size %ix%i\n", image_width, image_height); return NULL; } - if ((matchwidth && width != matchwidth) || (matchheight && height != matchheight)) - return NULL; - if (loadsize < 8 + width * height) + if (filesize < (int) sizeof(q2wal_t) + (int) LittleLong(inwal->offsets[0]) + image_width * image_height) { - Con_Printf("LoadLMP: invalid LMP file\n"); + Con_Print("LoadWAL: invalid WAL file\n"); return NULL; } - image_width = width; - image_height = height; - - image_rgba = Mem_Alloc(tempmempool, image_width * image_height * 4); - if (!image_rgba) + image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4); + if (!image_buffer) { - Con_Printf("LoadLMP: not enough memory for %i by %i image\n", image_width, image_height); + Con_Printf("LoadWAL: not enough memory for %i by %i image\n", image_width, image_height); return NULL; } - Image_Copy8bitRGBA(f + 8, image_rgba, image_width * image_height, palette_complete); - return image_rgba; + Image_Copy8bitBGRA(f + LittleLong(inwal->offsets[0]), image_buffer, image_width * image_height, palette_bgra_complete); + return image_buffer; } -/* -============ -LoadLMP -============ -*/ -qbyte *LoadLMPAs8Bit (const qbyte *f, int matchwidth, int matchheight) -{ - qbyte *image_8bit; - int width, height; - - if (loadsize < 9) - { - Con_Printf("LoadLMPAs8Bit: invalid LMP file\n"); - return NULL; - } - - // parse the very complicated header *chuckle* - width = f[0] + f[1] * 256 + f[2] * 65536 + f[3] * 16777216; - height = f[4] + f[5] * 256 + f[6] * 65536 + f[7] * 16777216; - if ((unsigned) width > 4096 || (unsigned) height > 4096) - { - Con_Printf("LoadLMPAs8Bit: invalid size\n"); - return NULL; - } - if ((matchwidth && width != matchwidth) || (matchheight && height != matchheight)) - return NULL; - if (loadsize < 8 + width * height) - { - Con_Printf("LoadLMPAs8Bit: invalid LMP file\n"); - return NULL; - } +void Image_StripImageExtension (const char *in, char *out, size_t size_out) +{ + const char *ext; - image_width = width; - image_height = height; + if (size_out == 0) + return; - image_8bit = Mem_Alloc(tempmempool, image_width * image_height); - if (!image_8bit) - { - Con_Printf("LoadLMPAs8Bit: not enough memory for %i by %i image\n", image_width, image_height); - return NULL; - } - memcpy(image_8bit, f + 8, image_width * image_height); - return image_8bit; + ext = FS_FileExtension(in); + if (ext && (!strcmp(ext, "tga") || !strcmp(ext, "pcx") || !strcmp(ext, "lmp") || !strcmp(ext, "png") || !strcmp(ext, "jpg"))) + FS_StripExtension(in, out, size_out); + else + strlcpy(out, in, size_out); } -void Image_StripImageExtension (const char *in, char *out) +typedef struct imageformat_s { - const char *end, *temp; - end = in + strlen(in); - if ((end - in) >= 4) - { - temp = end - 4; - if (strcmp(temp, ".tga") == 0 || strcmp(temp, ".pcx") == 0 || strcmp(temp, ".lmp") == 0) - end = temp; - while (in < end) - *out++ = *in++; - *out++ = 0; - } - else - strcpy(out, in); + const char *formatstring; + unsigned char *(*loadfunc)(const unsigned char *f, int filesize); } +imageformat_t; -qbyte *loadimagepixels (const char *filename, qboolean complain, int matchwidth, int matchheight) +// GAME_TENEBRAE only +imageformat_t imageformats_tenebrae[] = +{ + {"override/%s.tga", LoadTGA_BGRA}, + {"override/%s.png", PNG_LoadImage_BGRA}, + {"override/%s.jpg", JPEG_LoadImage_BGRA}, + {"override/%s.pcx", LoadPCX_BGRA}, + {"%s.tga", LoadTGA_BGRA}, + {"%s.png", PNG_LoadImage_BGRA}, + {"%s.jpg", JPEG_LoadImage_BGRA}, + {"%s.pcx", LoadPCX_BGRA}, + {NULL, NULL} +}; + +imageformat_t imageformats_nopath[] = +{ + {"override/%s.tga", LoadTGA_BGRA}, + {"override/%s.png", PNG_LoadImage_BGRA}, + {"override/%s.jpg", JPEG_LoadImage_BGRA}, + {"textures/%s.tga", LoadTGA_BGRA}, + {"textures/%s.png", PNG_LoadImage_BGRA}, + {"textures/%s.jpg", JPEG_LoadImage_BGRA}, + {"%s.tga", LoadTGA_BGRA}, + {"%s.png", PNG_LoadImage_BGRA}, + {"%s.jpg", JPEG_LoadImage_BGRA}, + {"%s.pcx", LoadPCX_BGRA}, + {NULL, NULL} +}; + +// GAME_DELUXEQUAKE only +// VorteX: the point why i use such messy texture paths is +// that GtkRadiant can't detect normal/gloss textures +// and exclude them from texture browser +// so i just use additional folder to store this textures +imageformat_t imageformats_dq[] = +{ + {"%s.tga", LoadTGA_BGRA}, + {"%s.jpg", JPEG_LoadImage_BGRA}, + {"texturemaps/%s.tga", LoadTGA_BGRA}, + {"texturemaps/%s.jpg", JPEG_LoadImage_BGRA}, + {NULL, NULL} +}; + +imageformat_t imageformats_textures[] = +{ + {"%s.tga", LoadTGA_BGRA}, + {"%s.png", PNG_LoadImage_BGRA}, + {"%s.jpg", JPEG_LoadImage_BGRA}, + {"%s.pcx", LoadPCX_BGRA}, + {"%s.wal", LoadWAL_BGRA}, + {NULL, NULL} +}; + +imageformat_t imageformats_gfx[] = { - qbyte *f, *data; - char basename[256], name[256], *c; - Image_StripImageExtension(filename, basename); // strip .tga, .pcx and .lmp extensions to allow replacement by other types + {"%s.tga", LoadTGA_BGRA}, + {"%s.png", PNG_LoadImage_BGRA}, + {"%s.jpg", JPEG_LoadImage_BGRA}, + {"%s.pcx", LoadPCX_BGRA}, + {NULL, NULL} +}; + +imageformat_t imageformats_other[] = +{ + {"%s.tga", LoadTGA_BGRA}, + {"%s.png", PNG_LoadImage_BGRA}, + {"%s.jpg", JPEG_LoadImage_BGRA}, + {"%s.pcx", LoadPCX_BGRA}, + {NULL, NULL} +}; + +int fixtransparentpixels(unsigned char *data, int w, int h); +unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qboolean allowFixtrans) +{ + fs_offset_t filesize; + imageformat_t *firstformat, *format; + unsigned char *f, *data = NULL; + char basename[MAX_QPATH], name[MAX_QPATH], *c; + if (developer_memorydebug.integer) + Mem_CheckSentinelsGlobal(); + if (developer_texturelogging.integer) + Log_Printf("textures.log", "%s\n", filename); + Image_StripImageExtension(filename, basename, sizeof(basename)); // strip filename extensions to allow replacement by other types // replace *'s with #, so commandline utils don't get confused when dealing with the external files for (c = basename;*c;c++) if (*c == '*') *c = '#'; - sprintf (name, "override/%s.tga", basename); - f = COM_LoadFile(name, true); - if (f) - { - data = LoadTGA (f, matchwidth, matchheight); - Mem_Free(f); - return data; - } - sprintf (name, "textures/%s.tga", basename); - f = COM_LoadFile(name, true); - if (f) - { - data = LoadTGA (f, matchwidth, matchheight); - Mem_Free(f); - return data; - } - sprintf (name, "textures/%s.pcx", basename); - f = COM_LoadFile(name, true); - if (f) - { - data = LoadPCX (f, matchwidth, matchheight); - Mem_Free(f); - return data; - } - sprintf (name, "%s.tga", basename); - f = COM_LoadFile(name, true); - if (f) + name[0] = 0; + if (strchr(basename, '/')) { - data = LoadTGA (f, matchwidth, matchheight); - Mem_Free(f); - return data; + int i; + for (i = 0;i < (int)sizeof(name)-1 && basename[i] != '/';i++) + name[i] = basename[i]; + name[i] = 0; } - sprintf (name, "%s.pcx", basename); - f = COM_LoadFile(name, true); - if (f) - { - data = LoadPCX (f, matchwidth, matchheight); - Mem_Free(f); - return data; - } - sprintf (name, "%s.lmp", basename); - f = COM_LoadFile(name, true); - if (f) + if (gamemode == GAME_TENEBRAE) + firstformat = imageformats_tenebrae; + else if (gamemode == GAME_DELUXEQUAKE) + firstformat = imageformats_dq; + else if (!strcasecmp(name, "textures")) + firstformat = imageformats_textures; + else if (!strcasecmp(name, "gfx")) + firstformat = imageformats_gfx; + else if (!strchr(basename, '/')) + firstformat = imageformats_nopath; + else + firstformat = imageformats_other; + // now try all the formats in the selected list + for (format = firstformat;format->formatstring;format++) { - data = LoadLMP (f, matchwidth, matchheight); - Mem_Free(f); - return data; + dpsnprintf (name, sizeof(name), format->formatstring, basename); + f = FS_LoadFile(name, tempmempool, true, &filesize); + if (f) + { + data = format->loadfunc(f, filesize); + Mem_Free(f); + if (data) + { + if (developer.integer >= 10) + Con_Printf("loaded image %s (%dx%d)\n", name, image_width, image_height); + if (developer_memorydebug.integer) + Mem_CheckSentinelsGlobal(); + if(allowFixtrans && r_fixtrans_auto.integer) + { + int n = fixtransparentpixels(data, image_width, image_height); + if(n) + { + Con_Printf("- had to fix %s (%d pixels changed)\n", name, n); + if(r_fixtrans_auto.integer >= 2) + { + char outfilename[MAX_QPATH], buf[MAX_QPATH]; + Image_StripImageExtension(name, buf, sizeof(buf)); + dpsnprintf(outfilename, sizeof(outfilename), "fixtrans/%s.tga", buf); + Image_WriteTGABGRA(outfilename, image_width, image_height, data); + Con_Printf("- %s written.\n", outfilename); + } + } + } + return data; + } + else + Con_DPrintf("Error loading image %s (file loaded but decode failed)\n", name); + } } if (complain) - Con_Printf ("Couldn't load %s.tga, .pcx, .lmp\n", filename); - return NULL; -} - -int image_makemask (const qbyte *in, qbyte *out, int size) -{ - int i, count; - count = 0; - for (i = 0;i < size;i++) { - out[0] = out[1] = out[2] = 255; - out[3] = in[3]; - if (in[3] != 255) - count++; - in += 4; - out += 4; + Con_Printf("Couldn't load %s using ", filename); + for (format = firstformat;format->formatstring;format++) + { + dpsnprintf (name, sizeof(name), format->formatstring, basename); + Con_Printf(format == firstformat ? "\"%s\"" : (format[1].formatstring ? ", \"%s\"" : " or \"%s\".\n"), format->formatstring); + } } - return count; -} -qbyte* loadimagepixelsmask (const char *filename, qboolean complain, int matchwidth, int matchheight) -{ - qbyte *in, *data; - in = data = loadimagepixels(filename, complain, matchwidth, matchheight); - if (!data) - return NULL; - if (image_makemask(data, data, image_width * image_height)) - return data; // some transparency - else - { - Mem_Free(data); - return NULL; // all opaque - } -} + // texture loading can take a while, so make sure we're sending keepalives + CL_KeepaliveMessage(false); -rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags) -{ - qbyte *data; - rtexture_t *rt; - if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight))) - return 0; - rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL); - Mem_Free(data); - return rt; + if (developer_memorydebug.integer) + Mem_CheckSentinelsGlobal(); + return NULL; } -rtexture_t *loadtextureimagemask (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags) +rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, qboolean complain, int flags, qboolean allowFixtrans) { - qbyte *data; + unsigned char *data; rtexture_t *rt; - if (!(data = loadimagepixelsmask (filename, complain, matchwidth, matchheight))) + if (!(data = loadimagepixelsbgra (filename, complain, allowFixtrans))) return 0; - rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL); + rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_BGRA, flags, NULL); Mem_Free(data); return rt; } -rtexture_t *image_masktex; -rtexture_t *image_nmaptex; -rtexture_t *loadtextureimagewithmask (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags) +int fixtransparentpixels(unsigned char *data, int w, int h) { - qbyte *data; - rtexture_t *rt; - image_masktex = NULL; - image_nmaptex = NULL; - if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight))) - return 0; - - rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL); + int const FIXTRANS_NEEDED = 1; + int const FIXTRANS_HAS_L = 2; + int const FIXTRANS_HAS_R = 4; + int const FIXTRANS_HAS_U = 8; + int const FIXTRANS_HAS_D = 16; + int const FIXTRANS_FIXED = 32; + unsigned char *fixMask = (unsigned char *) Mem_Alloc(tempmempool, w * h); + int fixPixels = 0; + int changedPixels = 0; + int x, y; - if (flags & TEXF_ALPHA && image_makemask(data, data, image_width * image_height)) - image_masktex = R_LoadTexture2D(pool, va("%s_mask", filename), image_width, image_height, data, TEXTYPE_RGBA, flags, NULL); +#define FIXTRANS_PIXEL (y*w+x) +#define FIXTRANS_PIXEL_U (((y+h-1)%h)*w+x) +#define FIXTRANS_PIXEL_D (((y+1)%h)*w+x) +#define FIXTRANS_PIXEL_L (y*w+((x+w-1)%w)) +#define FIXTRANS_PIXEL_R (y*w+((x+1)%w)) - Mem_Free(data); - return rt; + memset(fixMask, 0, w * h); + for(y = 0; y < h; ++y) + for(x = 0; x < w; ++x) + { + if(data[FIXTRANS_PIXEL * 4 + 3] == 0) + { + fixMask[FIXTRANS_PIXEL] |= FIXTRANS_NEEDED; + ++fixPixels; + } + else + { + fixMask[FIXTRANS_PIXEL_D] |= FIXTRANS_HAS_U; + fixMask[FIXTRANS_PIXEL_U] |= FIXTRANS_HAS_D; + fixMask[FIXTRANS_PIXEL_R] |= FIXTRANS_HAS_L; + fixMask[FIXTRANS_PIXEL_L] |= FIXTRANS_HAS_R; + } + } + if(fixPixels == w * h) + return 0; // sorry, can't do anything about this + while(fixPixels) + { + for(y = 0; y < h; ++y) + for(x = 0; x < w; ++x) + if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_NEEDED) + { + unsigned int sumR = 0, sumG = 0, sumB = 0, sumA = 0, sumRA = 0, sumGA = 0, sumBA = 0, cnt = 0; + unsigned char r, g, b, a, r0, g0, b0; + if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_HAS_U) + { + r = data[FIXTRANS_PIXEL_U * 4 + 2]; + g = data[FIXTRANS_PIXEL_U * 4 + 1]; + b = data[FIXTRANS_PIXEL_U * 4 + 0]; + a = data[FIXTRANS_PIXEL_U * 4 + 3]; + sumR += r; sumG += g; sumB += b; sumA += a; sumRA += r*a; sumGA += g*a; sumBA += b*a; ++cnt; + } + if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_HAS_D) + { + r = data[FIXTRANS_PIXEL_D * 4 + 2]; + g = data[FIXTRANS_PIXEL_D * 4 + 1]; + b = data[FIXTRANS_PIXEL_D * 4 + 0]; + a = data[FIXTRANS_PIXEL_D * 4 + 3]; + sumR += r; sumG += g; sumB += b; sumA += a; sumRA += r*a; sumGA += g*a; sumBA += b*a; ++cnt; + } + if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_HAS_L) + { + r = data[FIXTRANS_PIXEL_L * 4 + 2]; + g = data[FIXTRANS_PIXEL_L * 4 + 1]; + b = data[FIXTRANS_PIXEL_L * 4 + 0]; + a = data[FIXTRANS_PIXEL_L * 4 + 3]; + sumR += r; sumG += g; sumB += b; sumA += a; sumRA += r*a; sumGA += g*a; sumBA += b*a; ++cnt; + } + if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_HAS_R) + { + r = data[FIXTRANS_PIXEL_R * 4 + 2]; + g = data[FIXTRANS_PIXEL_R * 4 + 1]; + b = data[FIXTRANS_PIXEL_R * 4 + 0]; + a = data[FIXTRANS_PIXEL_R * 4 + 3]; + sumR += r; sumG += g; sumB += b; sumA += a; sumRA += r*a; sumGA += g*a; sumBA += b*a; ++cnt; + } + if(!cnt) + continue; + r0 = data[FIXTRANS_PIXEL * 4 + 2]; + g0 = data[FIXTRANS_PIXEL * 4 + 1]; + b0 = data[FIXTRANS_PIXEL * 4 + 0]; + if(sumA) + { + // there is a surrounding non-alpha pixel + r = (sumRA + sumA / 2) / sumA; + g = (sumGA + sumA / 2) / sumA; + b = (sumBA + sumA / 2) / sumA; + } + else + { + // need to use a "regular" average + r = (sumR + cnt / 2) / cnt; + g = (sumG + cnt / 2) / cnt; + b = (sumB + cnt / 2) / cnt; + } + if(r != r0 || g != g0 || b != b0) + ++changedPixels; + data[FIXTRANS_PIXEL * 4 + 2] = r; + data[FIXTRANS_PIXEL * 4 + 1] = g; + data[FIXTRANS_PIXEL * 4 + 0] = b; + fixMask[FIXTRANS_PIXEL] |= FIXTRANS_FIXED; + } + for(y = 0; y < h; ++y) + for(x = 0; x < w; ++x) + if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_FIXED) + { + fixMask[FIXTRANS_PIXEL] &= ~(FIXTRANS_NEEDED | FIXTRANS_FIXED); + fixMask[FIXTRANS_PIXEL_D] |= FIXTRANS_HAS_U; + fixMask[FIXTRANS_PIXEL_U] |= FIXTRANS_HAS_D; + fixMask[FIXTRANS_PIXEL_R] |= FIXTRANS_HAS_L; + fixMask[FIXTRANS_PIXEL_L] |= FIXTRANS_HAS_R; + --fixPixels; + } + } + return changedPixels; } -rtexture_t *loadtextureimagewithmaskandnmap (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags, float bumpscale) +void Image_FixTransparentPixels_f(void) { - qbyte *data, *data2; - rtexture_t *rt; - image_masktex = NULL; - image_nmaptex = NULL; - if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight))) - return 0; - - data2 = Mem_Alloc(tempmempool, image_width * image_height * 4); - - rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL); - - Image_HeightmapToNormalmap(data, data2, image_width, image_height, (flags & TEXF_CLAMP) != 0, bumpscale); - image_nmaptex = R_LoadTexture2D(pool, va("%s_nmap", filename), image_width, image_height, data2, TEXTYPE_RGBA, flags, NULL); - - if (flags & TEXF_ALPHA && image_makemask(data, data2, image_width * image_height)) - image_masktex = R_LoadTexture2D(pool, va("%s_mask", filename), image_width, image_height, data2, TEXTYPE_RGBA, flags, NULL); - - Mem_Free(data2); - - Mem_Free(data); - return rt; + const char *filename, *filename_pattern; + fssearch_t *search; + int i, n; + char outfilename[MAX_QPATH], buf[MAX_QPATH]; + unsigned char *data; + if(Cmd_Argc() != 2) + { + Con_Printf("Usage: %s imagefile\n", Cmd_Argv(0)); + return; + } + filename_pattern = Cmd_Argv(1); + search = FS_Search(filename_pattern, true, true); + if(!search) + return; + for(i = 0; i < search->numfilenames; ++i) + { + filename = search->filenames[i]; + Con_Printf("Processing %s... ", filename); + Image_StripImageExtension(filename, buf, sizeof(buf)); + dpsnprintf(outfilename, sizeof(outfilename), "fixtrans/%s.tga", buf); + if(!(data = loadimagepixelsbgra(filename, true, false))) + return; + if((n = fixtransparentpixels(data, image_width, image_height))) + { + Image_WriteTGABGRA(outfilename, image_width, image_height, data); + Con_Printf("%s written (%d pixels changed).\n", outfilename, n); + } + else + Con_Printf("unchanged.\n"); + Mem_Free(data); + } + FS_FreeSearch(search); } -qboolean Image_WriteTGARGB_preflipped (const char *filename, int width, int height, const qbyte *data) +qboolean Image_WriteTGABGR_preflipped (const char *filename, int width, int height, const unsigned char *data, unsigned char *buffer) { qboolean ret; - qbyte *buffer, *out; - const qbyte *in, *end; - - buffer = Mem_Alloc(tempmempool, width*height*3 + 18); memset (buffer, 0, 18); buffer[2] = 2; // uncompressed type @@ -715,28 +1115,19 @@ qboolean Image_WriteTGARGB_preflipped (const char *filename, int width, int heig buffer[16] = 24; // pixel size // swap rgb to bgr - in = data; - out = buffer + 18; - end = in + width*height*3; - for (;in < end;in += 3) - { - *out++ = in[2]; - *out++ = in[1]; - *out++ = in[0]; - } - ret = COM_WriteFile (filename, buffer, width*height*3 + 18 ); + memcpy(buffer + 18, data, width*height*3); + ret = FS_WriteFile (filename, buffer, width*height*3 + 18 ); - Mem_Free(buffer); return ret; } -void Image_WriteTGARGB (const char *filename, int width, int height, const qbyte *data) +void Image_WriteTGABGRA (const char *filename, int width, int height, const unsigned char *data) { int y; - qbyte *buffer, *out; - const qbyte *in, *end; + unsigned char *buffer, *out; + const unsigned char *in, *end; - buffer = Mem_Alloc(tempmempool, width*height*3 + 18); + buffer = (unsigned char *)Mem_Alloc(tempmempool, width*height*4 + 18); memset (buffer, 0, 18); buffer[2] = 2; // uncompressed type @@ -744,82 +1135,51 @@ void Image_WriteTGARGB (const char *filename, int width, int height, const qbyte buffer[13] = (width >> 8) & 0xFF; buffer[14] = (height >> 0) & 0xFF; buffer[15] = (height >> 8) & 0xFF; - buffer[16] = 24; // pixel size - // swap rgb to bgr and flip upside down - out = buffer + 18; - for (y = height - 1;y >= 0;y--) + for (y = 3;y < width*height*4;y += 4) + if (data[y] < 255) + break; + + if (y < width*height*4) { - in = data + y * width * 3; - end = in + width * 3; - for (;in < end;in += 3) + // save the alpha channel + buffer[16] = 32; // pixel size + buffer[17] = 8; // 8 bits of alpha + + // flip upside down + out = buffer + 18; + for (y = height - 1;y >= 0;y--) { - *out++ = in[2]; - *out++ = in[1]; - *out++ = in[0]; + memcpy(out, data + y * width * 4, width * 4); + out += width*4; } } - COM_WriteFile (filename, buffer, width*height*3 + 18 ); - - Mem_Free(buffer); -} - -void Image_WriteTGARGBA (const char *filename, int width, int height, const qbyte *data) -{ - int y; - qbyte *buffer, *out; - const qbyte *in, *end; - - buffer = Mem_Alloc(tempmempool, width*height*4 + 18); - - memset (buffer, 0, 18); - buffer[2] = 2; // uncompressed type - buffer[12] = (width >> 0) & 0xFF; - buffer[13] = (width >> 8) & 0xFF; - buffer[14] = (height >> 0) & 0xFF; - buffer[15] = (height >> 8) & 0xFF; - buffer[16] = 32; // pixel size - - // swap rgba to bgra and flip upside down - out = buffer + 18; - for (y = height - 1;y >= 0;y--) + else { - in = data + y * width * 4; - end = in + width * 4; - for (;in < end;in += 4) + // save only the color channels + buffer[16] = 24; // pixel size + buffer[17] = 0; // 8 bits of alpha + + // truncate bgra to bgr and flip upside down + out = buffer + 18; + for (y = height - 1;y >= 0;y--) { - *out++ = in[2]; - *out++ = in[1]; - *out++ = in[0]; - *out++ = in[3]; + in = data + y * width * 4; + end = in + width * 4; + for (;in < end;in += 4) + { + *out++ = in[0]; + *out++ = in[1]; + *out++ = in[2]; + } } } - COM_WriteFile (filename, buffer, width*height*4 + 18 ); + FS_WriteFile (filename, buffer, out - buffer); Mem_Free(buffer); } -qboolean Image_CheckAlpha(const qbyte *data, int size, qboolean rgba) -{ - const qbyte *end; - if (rgba) - { - // check alpha bytes - for (end = data + size * 4, data += 3;data < end;data += 4) - if (*data < 255) - return 1; - } - else - { - // color 255 is transparent - for (end = data + size;data < end;data++) - if (*data == 255) - return 1; - } - return 0; -} - -static void Image_Resample32LerpLine (const qbyte *in, qbyte *out, int inwidth, int outwidth) +static void Image_Resample32LerpLine (const unsigned char *in, unsigned char *out, int inwidth, int outwidth) { int j, xi, oldx = 0, f, fstep, endx, lerp; fstep = (int) (inwidth*65536.0f/outwidth); @@ -835,10 +1195,10 @@ static void Image_Resample32LerpLine (const qbyte *in, qbyte *out, int inwidth, if (xi < endx) { lerp = f & 0xFFFF; - *out++ = (qbyte) ((((in[4] - in[0]) * lerp) >> 16) + in[0]); - *out++ = (qbyte) ((((in[5] - in[1]) * lerp) >> 16) + in[1]); - *out++ = (qbyte) ((((in[6] - in[2]) * lerp) >> 16) + in[2]); - *out++ = (qbyte) ((((in[7] - in[3]) * lerp) >> 16) + in[3]); + *out++ = (unsigned char) ((((in[4] - in[0]) * lerp) >> 16) + in[0]); + *out++ = (unsigned char) ((((in[5] - in[1]) * lerp) >> 16) + in[1]); + *out++ = (unsigned char) ((((in[6] - in[2]) * lerp) >> 16) + in[2]); + *out++ = (unsigned char) ((((in[7] - in[3]) * lerp) >> 16) + in[3]); } else // last pixel of the line has no pixel to lerp to { @@ -850,50 +1210,21 @@ static void Image_Resample32LerpLine (const qbyte *in, qbyte *out, int inwidth, } } -static void Image_Resample24LerpLine (const qbyte *in, qbyte *out, int inwidth, int outwidth) -{ - int j, xi, oldx = 0, f, fstep, endx, lerp; - fstep = (int) (inwidth*65536.0f/outwidth); - endx = (inwidth-1); - for (j = 0,f = 0;j < outwidth;j++, f += fstep) - { - xi = f >> 16; - if (xi != oldx) - { - in += (xi - oldx) * 3; - oldx = xi; - } - if (xi < endx) - { - lerp = f & 0xFFFF; - *out++ = (qbyte) ((((in[3] - in[0]) * lerp) >> 16) + in[0]); - *out++ = (qbyte) ((((in[4] - in[1]) * lerp) >> 16) + in[1]); - *out++ = (qbyte) ((((in[5] - in[2]) * lerp) >> 16) + in[2]); - } - else // last pixel of the line has no pixel to lerp to - { - *out++ = in[0]; - *out++ = in[1]; - *out++ = in[2]; - } - } -} - -int resamplerowsize = 0; -qbyte *resamplerow1 = NULL; -qbyte *resamplerow2 = NULL; -mempool_t *resamplemempool = NULL; - -#define LERPBYTE(i) r = resamplerow1[i];out[i] = (qbyte) ((((resamplerow2[i] - r) * lerp) >> 16) + r) +#define LERPBYTE(i) r = resamplerow1[i];out[i] = (unsigned char) ((((resamplerow2[i] - r) * lerp) >> 16) + r) void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight) { int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth4 = inwidth*4, outwidth4 = outwidth*4; - qbyte *out; - const qbyte *inrow; - out = outdata; + unsigned char *out; + const unsigned char *inrow; + unsigned char *resamplerow1; + unsigned char *resamplerow2; + out = (unsigned char *)outdata; fstep = (int) (inheight*65536.0f/outheight); - inrow = indata; + resamplerow1 = (unsigned char *)Mem_Alloc(tempmempool, outwidth*4*2); + resamplerow2 = resamplerow1 + outwidth*4; + + inrow = (const unsigned char *)indata; oldy = 0; Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth); Image_Resample32LerpLine (inrow + inwidth4, resamplerow2, inwidth, outwidth); @@ -905,7 +1236,7 @@ void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *o lerp = f & 0xFFFF; if (yi != oldy) { - inrow = (qbyte *)indata + inwidth4*yi; + inrow = (unsigned char *)indata + inwidth4*yi; if (yi == oldy+1) memcpy(resamplerow1, resamplerow2, outwidth4); else @@ -968,7 +1299,7 @@ void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *o { if (yi != oldy) { - inrow = (qbyte *)indata + inwidth4*yi; + inrow = (unsigned char *)indata + inwidth4*yi; if (yi == oldy+1) memcpy(resamplerow1, resamplerow2, outwidth4); else @@ -978,15 +1309,19 @@ void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *o memcpy(out, resamplerow1, outwidth4); } } + + Mem_Free(resamplerow1); + resamplerow1 = NULL; + resamplerow2 = NULL; } -void Image_Resample32Nearest(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight) +void Image_Resample32Nolerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight) { int i, j; unsigned frac, fracstep; // relies on int being 4 bytes int *inrow, *out; - out = outdata; + out = (int *)outdata; fracstep = inwidth*0x10000/outwidth; for (i = 0;i < outheight;i++) @@ -1017,173 +1352,44 @@ void Image_Resample32Nearest(const void *indata, int inwidth, int inheight, void } } -void Image_Resample24Lerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight) -{ - int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth3 = inwidth * 3, outwidth3 = outwidth * 3; - qbyte *out; - const qbyte *inrow; - out = outdata; - fstep = (int) (inheight*65536.0f/outheight); - - inrow = indata; - oldy = 0; - Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth); - Image_Resample24LerpLine (inrow + inwidth3, resamplerow2, inwidth, outwidth); - for (i = 0, f = 0;i < outheight;i++,f += fstep) - { - yi = f >> 16; - if (yi < endy) - { - lerp = f & 0xFFFF; - if (yi != oldy) - { - inrow = (qbyte *)indata + inwidth3*yi; - if (yi == oldy+1) - memcpy(resamplerow1, resamplerow2, outwidth3); - else - Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth); - Image_Resample24LerpLine (inrow + inwidth3, resamplerow2, inwidth, outwidth); - oldy = yi; - } - j = outwidth - 4; - while(j >= 0) - { - LERPBYTE( 0); - LERPBYTE( 1); - LERPBYTE( 2); - LERPBYTE( 3); - LERPBYTE( 4); - LERPBYTE( 5); - LERPBYTE( 6); - LERPBYTE( 7); - LERPBYTE( 8); - LERPBYTE( 9); - LERPBYTE(10); - LERPBYTE(11); - out += 12; - resamplerow1 += 12; - resamplerow2 += 12; - j -= 4; - } - if (j & 2) - { - LERPBYTE( 0); - LERPBYTE( 1); - LERPBYTE( 2); - LERPBYTE( 3); - LERPBYTE( 4); - LERPBYTE( 5); - out += 6; - resamplerow1 += 6; - resamplerow2 += 6; - } - if (j & 1) - { - LERPBYTE( 0); - LERPBYTE( 1); - LERPBYTE( 2); - out += 3; - resamplerow1 += 3; - resamplerow2 += 3; - } - resamplerow1 -= outwidth3; - resamplerow2 -= outwidth3; - } - else - { - if (yi != oldy) - { - inrow = (qbyte *)indata + inwidth3*yi; - if (yi == oldy+1) - memcpy(resamplerow1, resamplerow2, outwidth3); - else - Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth); - oldy = yi; - } - memcpy(out, resamplerow1, outwidth3); - } - } -} - -void Image_Resample24Nolerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight) -{ - int i, j, f, inwidth3 = inwidth * 3; - unsigned frac, fracstep; - qbyte *inrow, *out; - out = outdata; - - fracstep = inwidth*0x10000/outwidth; - for (i = 0;i < outheight;i++) - { - inrow = (qbyte *)indata + inwidth3*(i*inheight/outheight); - frac = fracstep >> 1; - j = outwidth - 4; - while (j >= 0) - { - f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep; - f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep; - f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep; - f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep; - j -= 4; - } - if (j & 2) - { - f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep; - f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep; - out += 2; - } - if (j & 1) - { - f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep; - out += 1; - } - } -} - /* ================ Image_Resample ================ */ -void Image_Resample (const void *indata, int inwidth, int inheight, int indepth, void *outdata, int outwidth, int outheight, int outdepth, int bytesperpixel, int quality) +void Image_Resample32(const void *indata, int inwidth, int inheight, int indepth, void *outdata, int outwidth, int outheight, int outdepth, int quality) { if (indepth != 1 || outdepth != 1) - Sys_Error("Image_Resample: 3D resampling not supported\n"); - if (resamplerowsize < outwidth*4) { - if (resamplerow1) - Mem_Free(resamplerow1); - resamplerowsize = outwidth*4; - if (!resamplemempool) - resamplemempool = Mem_AllocPool("Image Scaling Buffer"); - resamplerow1 = Mem_Alloc(resamplemempool, resamplerowsize*2); - resamplerow2 = resamplerow1 + resamplerowsize; - } - if (bytesperpixel == 4) - { - if (quality) - Image_Resample32Lerp(indata, inwidth, inheight, outdata, outwidth, outheight); - else - Image_Resample32Nearest(indata, inwidth, inheight, outdata, outwidth, outheight); - } - else if (bytesperpixel == 3) - { - if (quality) - Image_Resample24Lerp(indata, inwidth, inheight, outdata, outwidth, outheight); - else - Image_Resample24Nolerp(indata, inwidth, inheight, outdata, outwidth, outheight); + Con_Printf ("Image_Resample: 3D resampling not supported\n"); + return; } + if (quality) + Image_Resample32Lerp(indata, inwidth, inheight, outdata, outwidth, outheight); else - Sys_Error("Image_Resample: unsupported bytesperpixel %i\n", bytesperpixel); + Image_Resample32Nolerp(indata, inwidth, inheight, outdata, outwidth, outheight); } // in can be the same as out -void Image_MipReduce(const qbyte *in, qbyte *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth, int bytesperpixel) +void Image_MipReduce32(const unsigned char *in, unsigned char *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth) { + const unsigned char *inrow; int x, y, nextrow; if (*depth != 1 || destdepth != 1) - Sys_Error("Image_Resample: 3D resampling not supported\n"); - nextrow = *width * bytesperpixel; + { + Con_Printf ("Image_Resample: 3D resampling not supported\n"); + if (*width > destwidth) + *width >>= 1; + if (*height > destheight) + *height >>= 1; + if (*depth > destdepth) + *depth >>= 1; + return; + } + // note: if given odd width/height this discards the last row/column of + // pixels, rather than doing a proper box-filter scale down + inrow = in; + nextrow = *width * 4; if (*width > destwidth) { *width >>= 1; @@ -1191,74 +1397,34 @@ void Image_MipReduce(const qbyte *in, qbyte *out, int *width, int *height, int * { // reduce both *height >>= 1; - if (bytesperpixel == 4) + for (y = 0;y < *height;y++, inrow += nextrow * 2) { - for (y = 0;y < *height;y++) + for (in = inrow, x = 0;x < *width;x++) { - for (x = 0;x < *width;x++) - { - out[0] = (qbyte) ((in[0] + in[4] + in[nextrow ] + in[nextrow+4]) >> 2); - out[1] = (qbyte) ((in[1] + in[5] + in[nextrow+1] + in[nextrow+5]) >> 2); - out[2] = (qbyte) ((in[2] + in[6] + in[nextrow+2] + in[nextrow+6]) >> 2); - out[3] = (qbyte) ((in[3] + in[7] + in[nextrow+3] + in[nextrow+7]) >> 2); - out += 4; - in += 8; - } - in += nextrow; // skip a line + out[0] = (unsigned char) ((in[0] + in[4] + in[nextrow ] + in[nextrow+4]) >> 2); + out[1] = (unsigned char) ((in[1] + in[5] + in[nextrow+1] + in[nextrow+5]) >> 2); + out[2] = (unsigned char) ((in[2] + in[6] + in[nextrow+2] + in[nextrow+6]) >> 2); + out[3] = (unsigned char) ((in[3] + in[7] + in[nextrow+3] + in[nextrow+7]) >> 2); + out += 4; + in += 8; } } - else if (bytesperpixel == 3) - { - for (y = 0;y < *height;y++) - { - for (x = 0;x < *width;x++) - { - out[0] = (qbyte) ((in[0] + in[3] + in[nextrow ] + in[nextrow+3]) >> 2); - out[1] = (qbyte) ((in[1] + in[4] + in[nextrow+1] + in[nextrow+4]) >> 2); - out[2] = (qbyte) ((in[2] + in[5] + in[nextrow+2] + in[nextrow+5]) >> 2); - out += 3; - in += 6; - } - in += nextrow; // skip a line - } - } - else - Sys_Error("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel); } else { // reduce width - if (bytesperpixel == 4) + for (y = 0;y < *height;y++, inrow += nextrow) { - for (y = 0;y < *height;y++) + for (in = inrow, x = 0;x < *width;x++) { - for (x = 0;x < *width;x++) - { - out[0] = (qbyte) ((in[0] + in[4]) >> 1); - out[1] = (qbyte) ((in[1] + in[5]) >> 1); - out[2] = (qbyte) ((in[2] + in[6]) >> 1); - out[3] = (qbyte) ((in[3] + in[7]) >> 1); - out += 4; - in += 8; - } + out[0] = (unsigned char) ((in[0] + in[4]) >> 1); + out[1] = (unsigned char) ((in[1] + in[5]) >> 1); + out[2] = (unsigned char) ((in[2] + in[6]) >> 1); + out[3] = (unsigned char) ((in[3] + in[7]) >> 1); + out += 4; + in += 8; } } - else if (bytesperpixel == 3) - { - for (y = 0;y < *height;y++) - { - for (x = 0;x < *width;x++) - { - out[0] = (qbyte) ((in[0] + in[3]) >> 1); - out[1] = (qbyte) ((in[1] + in[4]) >> 1); - out[2] = (qbyte) ((in[2] + in[5]) >> 1); - out += 3; - in += 6; - } - } - } - else - Sys_Error("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel); } } else @@ -1267,98 +1433,62 @@ void Image_MipReduce(const qbyte *in, qbyte *out, int *width, int *height, int * { // reduce height *height >>= 1; - if (bytesperpixel == 4) - { - for (y = 0;y < *height;y++) - { - for (x = 0;x < *width;x++) - { - out[0] = (qbyte) ((in[0] + in[nextrow ]) >> 1); - out[1] = (qbyte) ((in[1] + in[nextrow+1]) >> 1); - out[2] = (qbyte) ((in[2] + in[nextrow+2]) >> 1); - out[3] = (qbyte) ((in[3] + in[nextrow+3]) >> 1); - out += 4; - in += 4; - } - in += nextrow; // skip a line - } - } - else if (bytesperpixel == 3) + for (y = 0;y < *height;y++, inrow += nextrow * 2) { - for (y = 0;y < *height;y++) + for (in = inrow, x = 0;x < *width;x++) { - for (x = 0;x < *width;x++) - { - out[0] = (qbyte) ((in[0] + in[nextrow ]) >> 1); - out[1] = (qbyte) ((in[1] + in[nextrow+1]) >> 1); - out[2] = (qbyte) ((in[2] + in[nextrow+2]) >> 1); - out += 3; - in += 3; - } - in += nextrow; // skip a line + out[0] = (unsigned char) ((in[0] + in[nextrow ]) >> 1); + out[1] = (unsigned char) ((in[1] + in[nextrow+1]) >> 1); + out[2] = (unsigned char) ((in[2] + in[nextrow+2]) >> 1); + out[3] = (unsigned char) ((in[3] + in[nextrow+3]) >> 1); + out += 4; + in += 4; } } - else - Sys_Error("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel); } else - Sys_Error("Image_MipReduce: desired size already achieved\n"); + Con_Printf ("Image_MipReduce: desired size already achieved\n"); } } -extern cvar_t r_shadow_bumpscale; -void Image_HeightmapToNormalmap(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale) +void Image_HeightmapToNormalmap_BGRA(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale) { - int x, y; - const unsigned char *p0, *p1, *p2; + int x, y, x1, x2, y1, y2; + const unsigned char *b, *row[3]; + int p[5]; unsigned char *out; float iwidth, iheight, ibumpscale, n[3]; iwidth = 1.0f / width; iheight = 1.0f / height; - ibumpscale = (255.0f * 3.0f) / (bumpscale * r_shadow_bumpscale.value); + ibumpscale = (255.0f * 6.0f) / bumpscale; out = outpixels; - for (y = 0;y < height;y++) + for (y = 0, y1 = height-1;y < height;y1 = y, y++) { - for (x = 0;x < width;x++) + y2 = y + 1;if (y2 >= height) y2 = 0; + row[0] = inpixels + (y1 * width) * 4; + row[1] = inpixels + (y * width) * 4; + row[2] = inpixels + (y2 * width) * 4; + for (x = 0, x1 = width-1;x < width;x1 = x, x++) { - p0 = inpixels + (y * width + x) * 4; - if (x == width - 1) - { - if (clamp) - p1 = inpixels + (y * width + x) * 4; - else - p1 = inpixels + (y * width) * 4; - } - else - p1 = inpixels + (y * width + x + 1) * 4; - if (y == height - 1) - { - if (clamp) - p2 = inpixels + (y * width + x) * 4; - else - p2 = inpixels + x * 4; - } - else - p2 = inpixels + ((y + 1) * width + x) * 4; - /* - dv[0][0] = iwidth; - dv[0][1] = 0; - dv[0][2] = ((p1[0] + p1[1] + p1[2]) * ibumpscale) - ((p0[0] + p0[1] + p0[2]) * ibumpscale); - dv[1][0] = 0; - dv[1][1] = iheight; - dv[1][2] = ((p2[0] + p2[1] + p2[2]) * ibumpscale) - ((p0[0] + p0[1] + p0[2]) * ibumpscale); - n[0] = dv[0][1]*dv[1][2]-dv[0][2]*dv[1][1]; - n[1] = dv[0][2]*dv[1][0]-dv[0][0]*dv[1][2]; - n[2] = dv[0][0]*dv[1][1]-dv[0][1]*dv[1][0]; - */ - n[0] = ((p0[0] + p0[1] + p0[2]) - (p1[0] + p1[1] + p1[2])); - n[1] = ((p0[0] + p0[1] + p0[2]) - (p2[0] + p2[1] + p2[2])); + x2 = x + 1;if (x2 >= width) x2 = 0; + // left, right + b = row[1] + x1 * 4;p[0] = (b[0] + b[1] + b[2]); + b = row[1] + x2 * 4;p[1] = (b[0] + b[1] + b[2]); + // above, below + b = row[0] + x * 4;p[2] = (b[0] + b[1] + b[2]); + b = row[2] + x * 4;p[3] = (b[0] + b[1] + b[2]); + // center + b = row[1] + x * 4;p[4] = (b[0] + b[1] + b[2]); + // calculate a normal from the slopes + n[0] = p[0] - p[1]; + n[1] = p[3] - p[2]; n[2] = ibumpscale; VectorNormalize(n); - out[0] = 128.0f + n[0] * 127.0f; - out[1] = 128.0f + n[1] * 127.0f; - out[2] = 128.0f + n[2] * 127.0f; - out[3] = 255; + // turn it into a dot3 rgb vector texture + out[2] = (int)(128.0f + n[0] * 127.0f); + out[1] = (int)(128.0f + n[1] * 127.0f); + out[0] = (int)(128.0f + n[2] * 127.0f); + out[3] = (p[4]) / 3; out += 4; } }