1589 lines
43 KiB
C
1589 lines
43 KiB
C
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#include "quakedef.h"
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#include "image.h"
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#include "jpeg.h"
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#include "image_png.h"
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#include "r_shadow.h"
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int image_width;
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int image_height;
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static void Image_CopyAlphaFromBlueBGRA(unsigned char *outpixels, const unsigned char *inpixels, int w, int h)
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{
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int i, n;
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n = w * h;
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for(i = 0; i < n; ++i)
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outpixels[4*i+3] = inpixels[4*i]; // blue channel
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}
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#if 1
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// written by LordHavoc in a readable way, optimized by Vic, further optimized by LordHavoc (the non-special index case), readable version preserved below this
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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)
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{
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int index, c, x, y;
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const unsigned char *in, *line;
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int row_inc = (inputflipy ? -inputwidth : inputwidth) * numinputcomponents, col_inc = (inputflipx ? -1 : 1) * numinputcomponents;
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int row_ofs = (inputflipy ? (inputheight - 1) * inputwidth * numinputcomponents : 0), col_ofs = (inputflipx ? (inputwidth - 1) * numinputcomponents : 0);
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for (c = 0; c < numoutputcomponents; c++)
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if (outputinputcomponentindices[c] & 0x80000000)
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break;
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if (c < numoutputcomponents)
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{
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// special indices used
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if (inputflipdiagonal)
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{
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for (x = 0, line = inpixels + col_ofs; x < inputwidth; x++, line += col_inc)
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for (y = 0, in = line + row_ofs; y < inputheight; y++, in += row_inc, outpixels += numoutputcomponents)
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for (c = 0; c < numoutputcomponents; c++)
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outpixels[c] = ((index = outputinputcomponentindices[c]) & 0x80000000) ? index : in[index];
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}
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else
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{
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for (y = 0, line = inpixels + row_ofs; y < inputheight; y++, line += row_inc)
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for (x = 0, in = line + col_ofs; x < inputwidth; x++, in += col_inc, outpixels += numoutputcomponents)
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for (c = 0; c < numoutputcomponents; c++)
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outpixels[c] = ((index = outputinputcomponentindices[c]) & 0x80000000) ? index : in[index];
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}
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}
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else
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{
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// special indices not used
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if (inputflipdiagonal)
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{
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for (x = 0, line = inpixels + col_ofs; x < inputwidth; x++, line += col_inc)
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for (y = 0, in = line + row_ofs; y < inputheight; y++, in += row_inc, outpixels += numoutputcomponents)
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for (c = 0; c < numoutputcomponents; c++)
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outpixels[c] = in[outputinputcomponentindices[c]];
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}
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else
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{
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for (y = 0, line = inpixels + row_ofs; y < inputheight; y++, line += row_inc)
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for (x = 0, in = line + col_ofs; x < inputwidth; x++, in += col_inc, outpixels += numoutputcomponents)
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for (c = 0; c < numoutputcomponents; c++)
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outpixels[c] = in[outputinputcomponentindices[c]];
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}
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}
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}
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#else
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// intentionally readable version
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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)
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{
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int index, c, x, y;
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const unsigned char *in, *inrow, *incolumn;
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if (inputflipdiagonal)
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{
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for (x = 0;x < inputwidth;x++)
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{
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for (y = 0;y < inputheight;y++)
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{
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in = inpixels + ((inputflipy ? inputheight - 1 - y : y) * inputwidth + (inputflipx ? inputwidth - 1 - x : x)) * numinputcomponents;
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for (c = 0;c < numoutputcomponents;c++)
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{
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index = outputinputcomponentindices[c];
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if (index & 0x80000000)
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*outpixels++ = index;
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else
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*outpixels++ = in[index];
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}
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}
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}
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}
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else
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{
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for (y = 0;y < inputheight;y++)
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{
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for (x = 0;x < inputwidth;x++)
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{
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in = inpixels + ((inputflipy ? inputheight - 1 - y : y) * inputwidth + (inputflipx ? inputwidth - 1 - x : x)) * numinputcomponents;
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for (c = 0;c < numoutputcomponents;c++)
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{
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index = outputinputcomponentindices[c];
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if (index & 0x80000000)
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*outpixels++ = index;
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else
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*outpixels++ = in[index];
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}
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}
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}
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}
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}
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#endif
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void Image_GammaRemapRGB(const unsigned char *in, unsigned char *out, int pixels, const unsigned char *gammar, const unsigned char *gammag, const unsigned char *gammab)
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{
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while (pixels--)
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{
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out[0] = gammar[in[0]];
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out[1] = gammag[in[1]];
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out[2] = gammab[in[2]];
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in += 3;
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out += 3;
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}
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}
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// note: pal must be 32bit color
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void Image_Copy8bitBGRA(const unsigned char *in, unsigned char *out, int pixels, const unsigned int *pal)
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{
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int *iout = (int *)out;
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while (pixels >= 8)
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{
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iout[0] = pal[in[0]];
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iout[1] = pal[in[1]];
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iout[2] = pal[in[2]];
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iout[3] = pal[in[3]];
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iout[4] = pal[in[4]];
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iout[5] = pal[in[5]];
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iout[6] = pal[in[6]];
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iout[7] = pal[in[7]];
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in += 8;
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iout += 8;
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pixels -= 8;
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}
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if (pixels & 4)
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{
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iout[0] = pal[in[0]];
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iout[1] = pal[in[1]];
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iout[2] = pal[in[2]];
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iout[3] = pal[in[3]];
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in += 4;
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iout += 4;
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}
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if (pixels & 2)
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{
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iout[0] = pal[in[0]];
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iout[1] = pal[in[1]];
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in += 2;
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iout += 2;
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}
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if (pixels & 1)
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iout[0] = pal[in[0]];
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}
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/*
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=================================================================
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PCX Loading
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=================================================================
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*/
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typedef struct pcx_s
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{
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char manufacturer;
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char version;
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char encoding;
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char bits_per_pixel;
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unsigned short xmin,ymin,xmax,ymax;
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unsigned short hres,vres;
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unsigned char palette[48];
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char reserved;
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char color_planes;
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unsigned short bytes_per_line;
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unsigned short palette_type;
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char filler[58];
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} pcx_t;
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/*
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============
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LoadPCX
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============
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*/
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static unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize, int *miplevel)
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{
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pcx_t pcx;
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unsigned char *a, *b, *image_buffer, *pbuf;
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const unsigned char *palette, *fin, *enddata;
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int x, y, x2, dataByte;
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if (filesize < (int)sizeof(pcx) + 768)
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{
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Con_Print("Bad pcx file\n");
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return NULL;
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}
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fin = f;
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memcpy(&pcx, fin, sizeof(pcx));
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fin += sizeof(pcx);
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// LordHavoc: big-endian support ported from QF newtree
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pcx.xmax = LittleShort (pcx.xmax);
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pcx.xmin = LittleShort (pcx.xmin);
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pcx.ymax = LittleShort (pcx.ymax);
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pcx.ymin = LittleShort (pcx.ymin);
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pcx.hres = LittleShort (pcx.hres);
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pcx.vres = LittleShort (pcx.vres);
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pcx.bytes_per_line = LittleShort (pcx.bytes_per_line);
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pcx.palette_type = LittleShort (pcx.palette_type);
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image_width = pcx.xmax + 1 - pcx.xmin;
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image_height = pcx.ymax + 1 - pcx.ymin;
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if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || image_width > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0)
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{
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Con_Print("Bad pcx file\n");
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return NULL;
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}
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palette = f + filesize - 768;
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image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width*image_height*4);
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if (!image_buffer)
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{
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Con_Printf("LoadPCX: not enough memory for %i by %i image\n", image_width, image_height);
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return NULL;
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}
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pbuf = image_buffer + image_width*image_height*3;
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enddata = palette;
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for (y = 0;y < image_height && fin < enddata;y++)
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{
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a = pbuf + y * image_width;
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for (x = 0;x < image_width && fin < enddata;)
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{
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dataByte = *fin++;
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if(dataByte >= 0xC0)
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{
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if (fin >= enddata)
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break;
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x2 = x + (dataByte & 0x3F);
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dataByte = *fin++;
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if (x2 > image_width)
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x2 = image_width; // technically an error
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while(x < x2)
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a[x++] = dataByte;
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}
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else
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a[x++] = dataByte;
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}
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while(x < image_width)
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a[x++] = 0;
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}
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a = image_buffer;
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b = pbuf;
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for(x = 0;x < image_width*image_height;x++)
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{
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y = *b++ * 3;
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*a++ = palette[y+2];
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*a++ = palette[y+1];
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*a++ = palette[y];
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*a++ = 255;
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}
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return image_buffer;
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}
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/*
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============
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LoadPCX
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============
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*/
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qboolean LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pixels, int outwidth, int outheight)
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{
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pcx_t pcx;
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unsigned char *a;
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const unsigned char *fin, *enddata;
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int x, y, x2, dataByte, pcxwidth, pcxheight;
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if (filesize < (int)sizeof(pcx) + 768)
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return false;
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image_width = outwidth;
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image_height = outheight;
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fin = f;
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memcpy(&pcx, fin, sizeof(pcx));
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fin += sizeof(pcx);
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// LordHavoc: big-endian support ported from QF newtree
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pcx.xmax = LittleShort (pcx.xmax);
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pcx.xmin = LittleShort (pcx.xmin);
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pcx.ymax = LittleShort (pcx.ymax);
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pcx.ymin = LittleShort (pcx.ymin);
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pcx.hres = LittleShort (pcx.hres);
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pcx.vres = LittleShort (pcx.vres);
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pcx.bytes_per_line = LittleShort (pcx.bytes_per_line);
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pcx.palette_type = LittleShort (pcx.palette_type);
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pcxwidth = pcx.xmax + 1 - pcx.xmin;
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pcxheight = pcx.ymax + 1 - pcx.ymin;
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if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || pcxwidth > 4096 || pcxheight > 4096 || pcxwidth <= 0 || pcxheight <= 0)
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return false;
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enddata = f + filesize - 768;
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for (y = 0;y < outheight && fin < enddata;y++)
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{
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a = pixels + y * outwidth;
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// pad the output with blank lines if needed
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if (y >= pcxheight)
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{
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memset(a, 0, outwidth);
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continue;
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}
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for (x = 0;x < pcxwidth;)
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{
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if (fin >= enddata)
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return false;
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dataByte = *fin++;
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if(dataByte >= 0xC0)
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{
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x2 = x + (dataByte & 0x3F);
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if (fin >= enddata)
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return false;
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if (x2 > pcxwidth)
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return false;
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dataByte = *fin++;
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for (;x < x2;x++)
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if (x < outwidth)
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a[x] = dataByte;
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}
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else
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{
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if (x < outwidth) // truncate to destination width
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a[x] = dataByte;
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x++;
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}
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}
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while(x < outwidth)
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a[x++] = 0;
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}
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return true;
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}
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/*
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=========================================================
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TARGA LOADING
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=========================================================
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*/
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typedef struct _TargaHeader
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{
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unsigned char id_length, colormap_type, image_type;
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unsigned short colormap_index, colormap_length;
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unsigned char colormap_size;
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unsigned short x_origin, y_origin, width, height;
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unsigned char pixel_size, attributes;
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}
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TargaHeader;
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static void PrintTargaHeader(TargaHeader *t)
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{
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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);
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}
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/*
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=============
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LoadTGA
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=============
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*/
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unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize, int *miplevel)
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{
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int x, y, pix_inc, row_inci, runlen, alphabits;
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unsigned char *image_buffer;
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unsigned int *pixbufi;
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const unsigned char *fin, *enddata;
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TargaHeader targa_header;
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unsigned int palettei[256];
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union
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{
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unsigned int i;
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unsigned char b[4];
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}
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bgra;
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if (filesize < 19)
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return NULL;
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enddata = f + filesize;
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targa_header.id_length = f[0];
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targa_header.colormap_type = f[1];
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targa_header.image_type = f[2];
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targa_header.colormap_index = f[3] + f[4] * 256;
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targa_header.colormap_length = f[5] + f[6] * 256;
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targa_header.colormap_size = f[7];
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targa_header.x_origin = f[8] + f[9] * 256;
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targa_header.y_origin = f[10] + f[11] * 256;
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targa_header.width = image_width = f[12] + f[13] * 256;
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targa_header.height = image_height = f[14] + f[15] * 256;
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targa_header.pixel_size = f[16];
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targa_header.attributes = f[17];
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if (image_width > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0)
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{
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Con_Print("LoadTGA: invalid size\n");
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PrintTargaHeader(&targa_header);
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return NULL;
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}
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// advance to end of header
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fin = f + 18;
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// skip TARGA image comment (usually 0 bytes)
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fin += targa_header.id_length;
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// read/skip the colormap if present (note: according to the TARGA spec it
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// can be present even on truecolor or greyscale images, just not used by
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// the image data)
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if (targa_header.colormap_type)
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{
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if (targa_header.colormap_length > 256)
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{
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Con_Print("LoadTGA: only up to 256 colormap_length supported\n");
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PrintTargaHeader(&targa_header);
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return NULL;
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}
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if (targa_header.colormap_index)
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{
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Con_Print("LoadTGA: colormap_index not supported\n");
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PrintTargaHeader(&targa_header);
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return NULL;
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}
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if (targa_header.colormap_size == 24)
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{
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for (x = 0;x < targa_header.colormap_length;x++)
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{
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bgra.b[0] = *fin++;
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bgra.b[1] = *fin++;
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bgra.b[2] = *fin++;
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bgra.b[3] = 255;
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palettei[x] = bgra.i;
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}
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}
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else if (targa_header.colormap_size == 32)
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{
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memcpy(palettei, fin, targa_header.colormap_length*4);
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fin += targa_header.colormap_length * 4;
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}
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else
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{
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Con_Print("LoadTGA: Only 32 and 24 bit colormap_size supported\n");
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PrintTargaHeader(&targa_header);
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return NULL;
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}
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}
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// check our pixel_size restrictions according to image_type
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switch (targa_header.image_type & ~8)
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{
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case 2:
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if (targa_header.pixel_size != 24 && targa_header.pixel_size != 32)
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{
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Con_Print("LoadTGA: only 24bit and 32bit pixel sizes supported for type 2 and type 10 images\n");
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PrintTargaHeader(&targa_header);
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return NULL;
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}
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break;
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case 3:
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// set up a palette to make the loader easier
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for (x = 0;x < 256;x++)
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{
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bgra.b[0] = bgra.b[1] = bgra.b[2] = x;
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bgra.b[3] = 255;
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palettei[x] = bgra.i;
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}
|
|
// fall through to colormap case
|
|
case 1:
|
|
if (targa_header.pixel_size != 8)
|
|
{
|
|
Con_Print("LoadTGA: only 8bit pixel size for type 1, 3, 9, and 11 images supported\n");
|
|
PrintTargaHeader(&targa_header);
|
|
return NULL;
|
|
}
|
|
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_Print("LoadTGA: origin must be in top left or bottom left, top right and bottom right are not supported\n");
|
|
return NULL;
|
|
}
|
|
|
|
// number of attribute bits per pixel, we only support 0 or 8
|
|
alphabits = targa_header.attributes & 0x0F;
|
|
if (alphabits != 8 && alphabits != 0)
|
|
{
|
|
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)
|
|
{
|
|
pixbufi = (unsigned int*)image_buffer + (image_height - 1)*image_width;
|
|
row_inci = -image_width*2;
|
|
}
|
|
else
|
|
{
|
|
pixbufi = (unsigned int*)image_buffer;
|
|
row_inci = 0;
|
|
}
|
|
|
|
pix_inc = 1;
|
|
if ((targa_header.image_type & ~8) == 2)
|
|
pix_inc = (targa_header.pixel_size + 7) / 8;
|
|
switch (targa_header.image_type)
|
|
{
|
|
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)
|
|
{
|
|
for (y = 0;y < image_height;y++)
|
|
memcpy(pixbufi + y * (image_width + row_inci), fin + y * image_width * pix_inc, image_width*4);
|
|
}
|
|
else
|
|
{
|
|
for (y = 0;y < image_height;y++, pixbufi += row_inci)
|
|
{
|
|
for (x = 0;x < image_width;x++, fin += pix_inc)
|
|
{
|
|
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++];
|
|
}
|
|
}
|
|
|
|
if (x != image_width)
|
|
{
|
|
// pixbufi is useless now
|
|
Con_Printf("LoadTGA: corrupt file\n");
|
|
break;
|
|
}
|
|
}
|
|
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)
|
|
{
|
|
// 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (x != image_width)
|
|
{
|
|
// pixbufi is useless now
|
|
Con_Printf("LoadTGA: corrupt file\n");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
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.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;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (x != image_width)
|
|
{
|
|
// pixbufi is useless now
|
|
Con_Printf("LoadTGA: corrupt file\n");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
// unknown image_type
|
|
break;
|
|
}
|
|
|
|
return image_buffer;
|
|
}
|
|
|
|
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;
|
|
|
|
static unsigned char *LoadWAL_BGRA (const unsigned char *f, int filesize, int *miplevel)
|
|
{
|
|
unsigned char *image_buffer;
|
|
const q2wal_t *inwal = (const q2wal_t *)f;
|
|
|
|
if (filesize < (int) sizeof(q2wal_t))
|
|
{
|
|
Con_Print("LoadWAL: invalid WAL file\n");
|
|
return NULL;
|
|
}
|
|
|
|
image_width = LittleLong(inwal->width);
|
|
image_height = LittleLong(inwal->height);
|
|
if (image_width > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0)
|
|
{
|
|
Con_Printf("LoadWAL: invalid size %ix%i\n", image_width, image_height);
|
|
return NULL;
|
|
}
|
|
|
|
if (filesize < (int) sizeof(q2wal_t) + (int) LittleLong(inwal->offsets[0]) + image_width * image_height)
|
|
{
|
|
Con_Print("LoadWAL: invalid WAL file\n");
|
|
return NULL;
|
|
}
|
|
|
|
image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
|
|
if (!image_buffer)
|
|
{
|
|
Con_Printf("LoadWAL: not enough memory for %i by %i image\n", image_width, image_height);
|
|
return NULL;
|
|
}
|
|
Image_Copy8bitBGRA(f + LittleLong(inwal->offsets[0]), image_buffer, image_width * image_height, palette_bgra_complete);
|
|
return image_buffer;
|
|
}
|
|
|
|
|
|
void Image_StripImageExtension (const char *in, char *out, size_t size_out)
|
|
{
|
|
const char *ext;
|
|
|
|
if (size_out == 0)
|
|
return;
|
|
|
|
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);
|
|
}
|
|
|
|
static unsigned char image_linearfromsrgb[256];
|
|
static unsigned char image_srgbfromlinear_lightmap[256];
|
|
|
|
void Image_MakeLinearColorsFromsRGB(unsigned char *pout, const unsigned char *pin, int numpixels)
|
|
{
|
|
int i;
|
|
// this math from http://www.opengl.org/registry/specs/EXT/texture_sRGB.txt
|
|
if (!image_linearfromsrgb[255])
|
|
for (i = 0;i < 256;i++)
|
|
image_linearfromsrgb[i] = (unsigned char)floor(Image_LinearFloatFromsRGB(i) * 255.0f + 0.5f);
|
|
for (i = 0;i < numpixels;i++)
|
|
{
|
|
pout[i*4+0] = image_linearfromsrgb[pin[i*4+0]];
|
|
pout[i*4+1] = image_linearfromsrgb[pin[i*4+1]];
|
|
pout[i*4+2] = image_linearfromsrgb[pin[i*4+2]];
|
|
pout[i*4+3] = pin[i*4+3];
|
|
}
|
|
}
|
|
|
|
void Image_MakesRGBColorsFromLinear_Lightmap(unsigned char *pout, const unsigned char *pin, int numpixels)
|
|
{
|
|
int i;
|
|
// this math from http://www.opengl.org/registry/specs/EXT/texture_sRGB.txt
|
|
if (!image_srgbfromlinear_lightmap[255])
|
|
for (i = 0;i < 256;i++)
|
|
image_srgbfromlinear_lightmap[i] = (unsigned char)floor(bound(0.0f, Image_sRGBFloatFromLinear_Lightmap(i), 1.0f) * 255.0f + 0.5f);
|
|
for (i = 0;i < numpixels;i++)
|
|
{
|
|
pout[i*4+0] = image_srgbfromlinear_lightmap[pin[i*4+0]];
|
|
pout[i*4+1] = image_srgbfromlinear_lightmap[pin[i*4+1]];
|
|
pout[i*4+2] = image_srgbfromlinear_lightmap[pin[i*4+2]];
|
|
pout[i*4+3] = pin[i*4+3];
|
|
}
|
|
}
|
|
|
|
typedef struct imageformat_s
|
|
{
|
|
const char *formatstring;
|
|
unsigned char *(*loadfunc)(const unsigned char *f, int filesize, int *miplevel);
|
|
}
|
|
imageformat_t;
|
|
|
|
// 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[] =
|
|
{
|
|
{"%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, qboolean convertsRGB, int *miplevel)
|
|
{
|
|
fs_offset_t filesize;
|
|
imageformat_t *firstformat, *format;
|
|
unsigned char *f, *data = NULL, *data2 = NULL;
|
|
char basename[MAX_QPATH], name[MAX_QPATH], name2[MAX_QPATH], *c;
|
|
char vabuf[1024];
|
|
//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 = '#';
|
|
name[0] = 0;
|
|
if (strchr(basename, '/'))
|
|
{
|
|
int i;
|
|
for (i = 0;i < (int)sizeof(name)-1 && basename[i] != '/';i++)
|
|
name[i] = basename[i];
|
|
name[i] = 0;
|
|
}
|
|
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++)
|
|
{
|
|
dpsnprintf (name, sizeof(name), format->formatstring, basename);
|
|
f = FS_LoadFile(name, tempmempool, true, &filesize);
|
|
if (f)
|
|
{
|
|
int mymiplevel = miplevel ? *miplevel : 0;
|
|
data = format->loadfunc(f, (int)filesize, &mymiplevel);
|
|
Mem_Free(f);
|
|
if (data)
|
|
{
|
|
if(format->loadfunc == JPEG_LoadImage_BGRA) // jpeg can't do alpha, so let's simulate it by loading another jpeg
|
|
{
|
|
dpsnprintf (name2, sizeof(name2), format->formatstring, va(vabuf, sizeof(vabuf), "%s_alpha", basename));
|
|
f = FS_LoadFile(name2, tempmempool, true, &filesize);
|
|
if(f)
|
|
{
|
|
int mymiplevel2 = miplevel ? *miplevel : 0;
|
|
data2 = format->loadfunc(f, (int)filesize, &mymiplevel2);
|
|
if(data2 && mymiplevel == mymiplevel2)
|
|
Image_CopyAlphaFromBlueBGRA(data, data2, image_width, image_height);
|
|
else
|
|
Con_Printf("loadimagepixelsrgba: corrupt or invalid alpha image %s_alpha\n", basename);
|
|
if(data2)
|
|
Mem_Free(data2);
|
|
Mem_Free(f);
|
|
}
|
|
}
|
|
if (developer_loading.integer)
|
|
Con_TimePrintf("loaded image %s (%dx%d)\n", name, image_width, image_height);
|
|
if(miplevel)
|
|
*miplevel = mymiplevel;
|
|
//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);
|
|
}
|
|
}
|
|
}
|
|
if (convertsRGB)
|
|
Image_MakeLinearColorsFromsRGB(data, data, image_width * image_height);
|
|
return data;
|
|
}
|
|
else
|
|
Con_DPrintf("Error loading image %s (file loaded but decode failed)\n", name);
|
|
}
|
|
}
|
|
if (complain)
|
|
{
|
|
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);
|
|
}
|
|
}
|
|
|
|
// texture loading can take a while, so make sure we're sending keepalives
|
|
CL_KeepaliveMessage(false);
|
|
|
|
//if (developer_memorydebug.integer)
|
|
// Mem_CheckSentinelsGlobal();
|
|
return NULL;
|
|
}
|
|
|
|
extern cvar_t gl_picmip;
|
|
rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, qboolean complain, int flags, qboolean allowFixtrans, qboolean sRGB)
|
|
{
|
|
unsigned char *data;
|
|
rtexture_t *rt;
|
|
int miplevel = R_PicmipForFlags(flags);
|
|
if (!(data = loadimagepixelsbgra (filename, complain, allowFixtrans, false, &miplevel)))
|
|
return 0;
|
|
rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, sRGB ? TEXTYPE_SRGB_BGRA : TEXTYPE_BGRA, flags, miplevel, NULL);
|
|
Mem_Free(data);
|
|
return rt;
|
|
}
|
|
|
|
int fixtransparentpixels(unsigned char *data, int w, int h)
|
|
{
|
|
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;
|
|
|
|
#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))
|
|
|
|
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;
|
|
}
|
|
|
|
void Image_FixTransparentPixels_f(void)
|
|
{
|
|
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, false, NULL)))
|
|
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_WriteTGABGR_preflipped (const char *filename, int width, int height, const unsigned char *data)
|
|
{
|
|
qboolean ret;
|
|
unsigned char buffer[18];
|
|
const void *buffers[2];
|
|
fs_offset_t sizes[2];
|
|
|
|
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] = 24; // pixel size
|
|
|
|
buffers[0] = buffer;
|
|
sizes[0] = 18;
|
|
buffers[1] = data;
|
|
sizes[1] = width*height*3;
|
|
ret = FS_WriteFileInBlocks(filename, buffers, sizes, 2);
|
|
|
|
return ret;
|
|
}
|
|
|
|
qboolean Image_WriteTGABGRA (const char *filename, int width, int height, const unsigned char *data)
|
|
{
|
|
int y;
|
|
unsigned char *buffer, *out;
|
|
const unsigned char *in, *end;
|
|
qboolean ret;
|
|
|
|
buffer = (unsigned char *)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;
|
|
|
|
for (y = 3;y < width*height*4;y += 4)
|
|
if (data[y] < 255)
|
|
break;
|
|
|
|
if (y < width*height*4)
|
|
{
|
|
// 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--)
|
|
{
|
|
memcpy(out, data + y * width * 4, width * 4);
|
|
out += width*4;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// 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--)
|
|
{
|
|
in = data + y * width * 4;
|
|
end = in + width * 4;
|
|
for (;in < end;in += 4)
|
|
{
|
|
*out++ = in[0];
|
|
*out++ = in[1];
|
|
*out++ = in[2];
|
|
}
|
|
}
|
|
}
|
|
ret = FS_WriteFile (filename, buffer, out - buffer);
|
|
|
|
Mem_Free(buffer);
|
|
|
|
return ret;
|
|
}
|
|
|
|
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);
|
|
endx = (inwidth-1);
|
|
for (j = 0,f = 0;j < outwidth;j++, f += fstep)
|
|
{
|
|
xi = f >> 16;
|
|
if (xi != oldx)
|
|
{
|
|
in += (xi - oldx) * 4;
|
|
oldx = xi;
|
|
}
|
|
if (xi < endx)
|
|
{
|
|
lerp = f & 0xFFFF;
|
|
*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
|
|
{
|
|
*out++ = in[0];
|
|
*out++ = in[1];
|
|
*out++ = in[2];
|
|
*out++ = in[3];
|
|
}
|
|
}
|
|
}
|
|
|
|
#define LERPBYTE(i) r = resamplerow1[i];out[i] = (unsigned char) ((((resamplerow2[i] - r) * lerp) >> 16) + r)
|
|
static 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;
|
|
unsigned char *out;
|
|
const unsigned char *inrow;
|
|
unsigned char *resamplerow1;
|
|
unsigned char *resamplerow2;
|
|
out = (unsigned char *)outdata;
|
|
fstep = (int) (inheight*65536.0f/outheight);
|
|
|
|
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);
|
|
for (i = 0, f = 0;i < outheight;i++,f += fstep)
|
|
{
|
|
yi = f >> 16;
|
|
if (yi < endy)
|
|
{
|
|
lerp = f & 0xFFFF;
|
|
if (yi != oldy)
|
|
{
|
|
inrow = (unsigned char *)indata + inwidth4*yi;
|
|
if (yi == oldy+1)
|
|
memcpy(resamplerow1, resamplerow2, outwidth4);
|
|
else
|
|
Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth);
|
|
Image_Resample32LerpLine (inrow + inwidth4, 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);
|
|
LERPBYTE(12);
|
|
LERPBYTE(13);
|
|
LERPBYTE(14);
|
|
LERPBYTE(15);
|
|
out += 16;
|
|
resamplerow1 += 16;
|
|
resamplerow2 += 16;
|
|
j -= 4;
|
|
}
|
|
if (j & 2)
|
|
{
|
|
LERPBYTE( 0);
|
|
LERPBYTE( 1);
|
|
LERPBYTE( 2);
|
|
LERPBYTE( 3);
|
|
LERPBYTE( 4);
|
|
LERPBYTE( 5);
|
|
LERPBYTE( 6);
|
|
LERPBYTE( 7);
|
|
out += 8;
|
|
resamplerow1 += 8;
|
|
resamplerow2 += 8;
|
|
}
|
|
if (j & 1)
|
|
{
|
|
LERPBYTE( 0);
|
|
LERPBYTE( 1);
|
|
LERPBYTE( 2);
|
|
LERPBYTE( 3);
|
|
out += 4;
|
|
resamplerow1 += 4;
|
|
resamplerow2 += 4;
|
|
}
|
|
resamplerow1 -= outwidth4;
|
|
resamplerow2 -= outwidth4;
|
|
}
|
|
else
|
|
{
|
|
if (yi != oldy)
|
|
{
|
|
inrow = (unsigned char *)indata + inwidth4*yi;
|
|
if (yi == oldy+1)
|
|
memcpy(resamplerow1, resamplerow2, outwidth4);
|
|
else
|
|
Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth);
|
|
oldy = yi;
|
|
}
|
|
memcpy(out, resamplerow1, outwidth4);
|
|
}
|
|
}
|
|
|
|
Mem_Free(resamplerow1);
|
|
resamplerow1 = NULL;
|
|
resamplerow2 = NULL;
|
|
}
|
|
|
|
static 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 = (int *)outdata;
|
|
|
|
fracstep = inwidth*0x10000/outwidth;
|
|
for (i = 0;i < outheight;i++)
|
|
{
|
|
inrow = (int *)indata + inwidth*(i*inheight/outheight);
|
|
frac = fracstep >> 1;
|
|
j = outwidth - 4;
|
|
while (j >= 0)
|
|
{
|
|
out[0] = inrow[frac >> 16];frac += fracstep;
|
|
out[1] = inrow[frac >> 16];frac += fracstep;
|
|
out[2] = inrow[frac >> 16];frac += fracstep;
|
|
out[3] = inrow[frac >> 16];frac += fracstep;
|
|
out += 4;
|
|
j -= 4;
|
|
}
|
|
if (j & 2)
|
|
{
|
|
out[0] = inrow[frac >> 16];frac += fracstep;
|
|
out[1] = inrow[frac >> 16];frac += fracstep;
|
|
out += 2;
|
|
}
|
|
if (j & 1)
|
|
{
|
|
out[0] = inrow[frac >> 16];frac += fracstep;
|
|
out += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
Image_Resample
|
|
================
|
|
*/
|
|
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)
|
|
{
|
|
Con_Printf ("Image_Resample: 3D resampling not supported\n");
|
|
return;
|
|
}
|
|
if (quality)
|
|
Image_Resample32Lerp(indata, inwidth, inheight, outdata, outwidth, outheight);
|
|
else
|
|
Image_Resample32Nolerp(indata, inwidth, inheight, outdata, outwidth, outheight);
|
|
}
|
|
|
|
// in can be the same as out
|
|
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)
|
|
{
|
|
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;
|
|
if (*height > destheight)
|
|
{
|
|
// reduce both
|
|
*height >>= 1;
|
|
for (y = 0;y < *height;y++, inrow += nextrow * 2)
|
|
{
|
|
for (in = inrow, x = 0;x < *width;x++)
|
|
{
|
|
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
|
|
{
|
|
// reduce width
|
|
for (y = 0;y < *height;y++, inrow += nextrow)
|
|
{
|
|
for (in = inrow, x = 0;x < *width;x++)
|
|
{
|
|
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 (*height > destheight)
|
|
{
|
|
// reduce height
|
|
*height >>= 1;
|
|
for (y = 0;y < *height;y++, inrow += nextrow * 2)
|
|
{
|
|
for (in = inrow, x = 0;x < *width;x++)
|
|
{
|
|
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
|
|
Con_Printf ("Image_MipReduce: desired size already achieved\n");
|
|
}
|
|
}
|
|
|
|
void Image_HeightmapToNormalmap_BGRA(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale)
|
|
{
|
|
int x, y, x1, x2, y1, y2;
|
|
const unsigned char *b, *row[3];
|
|
int p[5];
|
|
unsigned char *out;
|
|
float ibumpscale, n[3];
|
|
ibumpscale = (255.0f * 6.0f) / bumpscale;
|
|
out = outpixels;
|
|
for (y = 0, y1 = height-1;y < height;y1 = y, y++)
|
|
{
|
|
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++)
|
|
{
|
|
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);
|
|
// 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;
|
|
}
|
|
}
|
|
}
|