--- /dev/null
+
+#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_CopyAlphaFromBlueBGRA(unsigned char *outpixels, const unsigned char *inpixels, int w, int h)
+{
+ int i, n;
+ n = w * h;
+ for(i = 0; i < n; ++i)
+ outpixels[4*i+3] = inpixels[4*i]; // blue channel
+}
+
+#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--)
+ {
+ out[0] = gammar[in[0]];
+ out[1] = gammag[in[1]];
+ out[2] = gammab[in[2]];
+ in += 3;
+ out += 3;
+ }
+}
+
+// note: pal must be 32bit color
+void Image_Copy8bitBGRA(const unsigned char *in, unsigned char *out, int pixels, const unsigned int *pal)
+{
+ int *iout = (int *)out;
+ while (pixels >= 8)
+ {
+ iout[0] = pal[in[0]];
+ iout[1] = pal[in[1]];
+ iout[2] = pal[in[2]];
+ iout[3] = pal[in[3]];
+ iout[4] = pal[in[4]];
+ iout[5] = pal[in[5]];
+ iout[6] = pal[in[6]];
+ iout[7] = pal[in[7]];
+ in += 8;
+ iout += 8;
+ pixels -= 8;
+ }
+ if (pixels & 4)
+ {
+ iout[0] = pal[in[0]];
+ iout[1] = pal[in[1]];
+ iout[2] = pal[in[2]];
+ iout[3] = pal[in[3]];
+ in += 4;
+ iout += 4;
+ }
+ if (pixels & 2)
+ {
+ iout[0] = pal[in[0]];
+ iout[1] = pal[in[1]];
+ in += 2;
+ iout += 2;
+ }
+ if (pixels & 1)
+ iout[0] = pal[in[0]];
+}
+
+/*
+=================================================================
+
+ PCX Loading
+
+=================================================================
+*/
+
+typedef struct pcx_s
+{
+ char manufacturer;
+ char version;
+ char encoding;
+ char bits_per_pixel;
+ unsigned short xmin,ymin,xmax,ymax;
+ unsigned short hres,vres;
+ unsigned char palette[48];
+ char reserved;
+ char color_planes;
+ unsigned short bytes_per_line;
+ unsigned short palette_type;
+ char filler[58];
+} pcx_t;
+
+/*
+============
+LoadPCX
+============
+*/
+unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize, int *miplevel)
+{
+ pcx_t pcx;
+ unsigned char *a, *b, *image_buffer, *pbuf;
+ const unsigned char *palette, *fin, *enddata;
+ int x, y, x2, dataByte;
+
+ if (filesize < (int)sizeof(pcx) + 768)
+ {
+ Con_Print("Bad pcx file\n");
+ return NULL;
+ }
+
+ 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);
+
+ 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 > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0)
+ {
+ Con_Print("Bad pcx file\n");
+ return NULL;
+ }
+
+ palette = f + filesize - 768;
+
+ 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_buffer + image_width*image_height*3;
+ enddata = palette;
+
+ for (y = 0;y < image_height && fin < enddata;y++)
+ {
+ a = pbuf + y * image_width;
+ for (x = 0;x < image_width && fin < enddata;)
+ {
+ dataByte = *fin++;
+ if(dataByte >= 0xC0)
+ {
+ if (fin >= enddata)
+ break;
+ x2 = x + (dataByte & 0x3F);
+ dataByte = *fin++;
+ if (x2 > image_width)
+ x2 = image_width; // technically an error
+ while(x < x2)
+ a[x++] = dataByte;
+ }
+ else
+ a[x++] = dataByte;
+ }
+ while(x < image_width)
+ a[x++] = 0;
+ }
+
+ a = image_buffer;
+ b = pbuf;
+
+ for(x = 0;x < image_width*image_height;x++)
+ {
+ y = *b++ * 3;
+ *a++ = palette[y+2];
+ *a++ = palette[y+1];
+ *a++ = palette[y];
+ *a++ = 255;
+ }
+
+ 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;
+}
+
+/*
+=========================================================
+
+TARGA LOADING
+
+=========================================================
+*/
+
+typedef struct _TargaHeader
+{
+ unsigned char id_length, colormap_type, image_type;
+ unsigned short colormap_index, colormap_length;
+ unsigned char colormap_size;
+ unsigned short x_origin, y_origin, width, height;
+ unsigned char pixel_size, attributes;
+}
+TargaHeader;
+
+void PrintTargaHeader(TargaHeader *t)
+{
+ 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);
+}
+
+/*
+=============
+LoadTGA
+=============
+*/
+unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize, int *miplevel)
+{
+ 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 int palettei[256];
+ union
+ {
+ unsigned int i;
+ unsigned char b[4];
+ }
+ bgra;
+
+ if (filesize < 19)
+ return NULL;
+
+ enddata = f + filesize;
+
+ targa_header.id_length = f[0];
+ targa_header.colormap_type = f[1];
+ targa_header.image_type = f[2];
+
+ targa_header.colormap_index = f[3] + f[4] * 256;
+ targa_header.colormap_length = f[5] + f[6] * 256;
+ 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 = 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];
+
+ if (image_width > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0)
+ {
+ Con_Print("LoadTGA: invalid size\n");
+ PrintTargaHeader(&targa_header);
+ return NULL;
+ }
+
+ // 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.colormap_length > 256)
+ {
+ Con_Print("LoadTGA: only up to 256 colormap_length supported\n");
+ PrintTargaHeader(&targa_header);
+ return NULL;
+ }
+ if (targa_header.colormap_index)
+ {
+ Con_Print("LoadTGA: colormap_index not supported\n");
+ PrintTargaHeader(&targa_header);
+ return NULL;
+ }
+ if (targa_header.colormap_size == 24)
+ {
+ for (x = 0;x < targa_header.colormap_length;x++)
+ {
+ 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)
+ {
+ memcpy(palettei, fin, targa_header.colormap_length*4);
+ fin += targa_header.colormap_length * 4;
+ }
+ else
+ {
+ Con_Print("LoadTGA: Only 32 and 24 bit colormap_size supported\n");
+ PrintTargaHeader(&targa_header);
+ return NULL;
+ }
+ }
+
+ // 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_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;
+ }
+
+ x = 0;
+ y = 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;
+
+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];
+
+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)(Image_LinearFloatFromsRGB(i) * 256.0f);
+ 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];
+ }
+}
+
+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;
+ //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("%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(mymiplevel != mymiplevel2)
+ Host_Error("loadimagepixelsbgra: miplevels differ");
+ Mem_Free(f);
+ Image_CopyAlphaFromBlueBGRA(data, data2, image_width, image_height);
+ Mem_Free(data2);
+ }
+ }
+ if (developer_loading.integer)
+ Con_DPrintf("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)
+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;
+}
+
+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;
+ }
+ }
+}
projects / voretournament / voretournament.git / blobdiff