#include "quakedef.h"
+#include "image.h"
+#include "jpeg.h"
+#include "r_shadow.h"
int image_width;
int image_height;
+#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(qbyte *outpixels, const qbyte *inpixels, int inputwidth, int inputheight, qboolean inputflipx, qboolean inputflipy, qboolean inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices)
+{
+ int index, c, x, y;
+ const qbyte *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 += numinputcomponents)
+ 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 += numinputcomponents)
+ 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 += numinputcomponents)
+ 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 += numinputcomponents)
+ for (c = 0; c < numoutputcomponents; c++)
+ outpixels[c] = in[outputinputcomponentindices[c]];
+ }
+ }
+}
+#else
+// intentionally readable version
+void Image_CopyMux(qbyte *outpixels, const qbyte *inpixels, int inputwidth, int inputheight, qboolean inputflipx, qboolean inputflipy, qboolean inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices)
+{
+ int index, c, x, y;
+ const qbyte *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 qbyte *in, qbyte *out, int pixels, const qbyte *gammar, const qbyte *gammag, const qbyte *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_Copy8bitRGBA(byte *in, byte *out, int pixels, int *pal)
+void Image_Copy8bitRGBA(const qbyte *in, qbyte *out, int pixels, const unsigned int *pal)
{
int *iout = (void *)out;
while (pixels >= 8)
iout[0] = pal[in[0]];
}
-void Image_CopyRGBAGamma(byte *in, byte *out, int pixels)
-{
- while (pixels--)
- {
- out[0] = qgamma[in[0]];
- out[1] = qgamma[in[1]];
- out[2] = qgamma[in[2]];
- out[3] = in[3] ;
- in += 4;
- out += 4;
- }
-}
-
-
/*
=================================================================
unsigned short bytes_per_line;
unsigned short palette_type;
char filler[58];
- unsigned data; // unbounded
} pcx_t;
/*
LoadPCX
============
*/
-byte* LoadPCX (FILE *f, int matchwidth, int matchheight)
+qbyte* LoadPCX (const qbyte *f, int matchwidth, int matchheight)
{
- pcx_t *pcx, pcxbuf;
- byte palette[768];
- byte *pix, *image_rgba;
- int x, y;
- int dataByte, runLength;
- int count;
+ pcx_t pcx;
+ qbyte *a, *b, *image_rgba, *pbuf;
+ const qbyte *palette, *fin, *enddata;
+ int x, y, x2, dataByte;
+
+ if (fs_filesize < (int)sizeof(pcx) + 768)
+ {
+ Con_Print("Bad pcx file\n");
+ return NULL;
+ }
-//
-// parse the PCX file
-//
- fread (&pcxbuf, 1, sizeof(pcxbuf), f);
+ fin = f;
- pcx = &pcxbuf;
+ 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);
-
- if (pcx->manufacturer != 0x0a || pcx->version != 5 || pcx->encoding != 1 || pcx->bits_per_pixel != 8 || pcx->xmax > 320 || pcx->ymax > 256)
- {
- Con_Printf ("Bad pcx file\n");
- return NULL;
- }
+ 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);
- if (matchwidth && (pcx->xmax+1) != matchwidth)
+ image_width = pcx.xmax + 1 - pcx.xmin;
+ image_height = pcx.ymax + 1 - pcx.ymin;
+ if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
+ {
+ Con_Print("Bad pcx file\n");
return NULL;
- if (matchheight && (pcx->ymax+1) != matchheight)
+ }
+ if ((matchwidth && image_width != matchwidth) || (matchheight && image_height != matchheight))
return NULL;
- // seek to palette
- fseek (f, -768, SEEK_END);
- fread (palette, 1, 768, f);
+ palette = f + fs_filesize - 768;
- fseek (f, sizeof(pcxbuf) - 4, SEEK_SET);
-
- count = (pcx->xmax+1) * (pcx->ymax+1);
- image_rgba = malloc( count * 4);
+ image_rgba = Mem_Alloc(tempmempool, image_width*image_height*4);
+ if (!image_rgba)
+ {
+ Con_Printf("LoadPCX: not enough memory for %i by %i image\n", image_width, image_height);
+ return NULL;
+ }
+ pbuf = image_rgba + image_width*image_height*3;
+ enddata = palette;
- for (y=0 ; y<=pcx->ymax ; y++)
+ for (y = 0;y < image_height && fin < enddata;y++)
{
- pix = image_rgba + 4*y*(pcx->xmax+1);
- for (x=0 ; x<=pcx->xmax ; )
+ a = pbuf + y * image_width;
+ for (x = 0;x < image_width && fin < enddata;)
{
- dataByte = fgetc(f);
-
- if((dataByte & 0xC0) == 0xC0)
+ dataByte = *fin++;
+ if(dataByte >= 0xC0)
{
- runLength = dataByte & 0x3F;
- dataByte = fgetc(f);
- if (runLength)
- {
- x += runLength;
- while(runLength--)
- {
- pix[0] = palette[dataByte*3];
- pix[1] = palette[dataByte*3+1];
- pix[2] = palette[dataByte*3+2];
- pix[3] = 255;
- pix += 4;
- }
- }
+ 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
- {
- x++;
- pix[0] = palette[dataByte*3];
- pix[1] = palette[dataByte*3+1];
- pix[2] = palette[dataByte*3+2];
- pix[3] = 255;
- pix += 4;
- }
-
+ a[x++] = dataByte;
}
+ fin += pcx.bytes_per_line - image_width; // the number of bytes per line is always forced to an even number
+ while(x < image_width)
+ a[x++] = 0;
+ }
+
+ a = image_rgba;
+ b = pbuf;
+
+ for(x = 0;x < image_width*image_height;x++)
+ {
+ y = *b++ * 3;
+ *a++ = palette[y];
+ *a++ = palette[y+1];
+ *a++ = palette[y+2];
+ *a++ = 255;
}
- fclose(f);
- image_width = pcx->xmax+1;
- image_height = pcx->ymax+1;
+
return image_rgba;
}
=========================================================
*/
-typedef struct _TargaHeader {
+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;
-
-
-TargaHeader targa_header;
-
-int fgetLittleShort (FILE *f)
-{
- byte b1, b2;
-
- b1 = fgetc(f);
- b2 = fgetc(f);
-
- return (short)(b1 + b2*256);
}
+TargaHeader;
-int fgetLittleLong (FILE *f)
+void PrintTargaHeader(TargaHeader *t)
{
- byte b1, b2, b3, b4;
-
- b1 = fgetc(f);
- b2 = fgetc(f);
- b3 = fgetc(f);
- b4 = fgetc(f);
-
- return b1 + (b2<<8) + (b3<<16) + (b4<<24);
+ Con_Print("TargaHeader:\n");
+ Con_Printf("uint8 id_length = %i;\n", t->id_length);
+ Con_Printf("uint8 colormap_type = %i;\n", t->colormap_type);
+ Con_Printf("uint8 image_type = %i;\n", t->image_type);
+ Con_Printf("uint16 colormap_index = %i;\n", t->colormap_index);
+ Con_Printf("uint16 colormap_length = %i;\n", t->colormap_length);
+ Con_Printf("uint8 colormap_size = %i;\n", t->colormap_size);
+ Con_Printf("uint16 x_origin = %i;\n", t->x_origin);
+ Con_Printf("uint16 y_origin = %i;\n", t->y_origin);
+ Con_Printf("uint16 width = %i;\n", t->width);
+ Con_Printf("uint16 height = %i;\n", t->height);
+ Con_Printf("uint8 pixel_size = %i;\n", t->pixel_size);
+ Con_Printf("uint8 attributes = %i;\n", t->attributes);
}
-
/*
=============
LoadTGA
=============
*/
-byte* LoadTGA (FILE *fin, int matchwidth, int matchheight)
-{
- int columns, rows, numPixels;
- byte *pixbuf;
- int row, column;
- byte *image_rgba;
-
- targa_header.id_length = fgetc(fin);
- targa_header.colormap_type = fgetc(fin);
- targa_header.image_type = fgetc(fin);
-
- targa_header.colormap_index = fgetLittleShort(fin);
- targa_header.colormap_length = fgetLittleShort(fin);
- targa_header.colormap_size = fgetc(fin);
- targa_header.x_origin = fgetLittleShort(fin);
- targa_header.y_origin = fgetLittleShort(fin);
- targa_header.width = fgetLittleShort(fin);
- targa_header.height = fgetLittleShort(fin);
- if (matchwidth && targa_header.width != matchwidth)
+qbyte *LoadTGA (const qbyte *f, int matchwidth, int matchheight)
+{
+ int x, y, row_inc, compressed, readpixelcount, red, green, blue, alpha, runlen, pindex, alphabits;
+ qbyte *pixbuf, *image_rgba;
+ const qbyte *fin, *enddata;
+ TargaHeader targa_header;
+ unsigned char palette[256*4], *p;
+
+ if (fs_filesize < 19)
return NULL;
- if (matchheight && targa_header.height != matchheight)
+
+ enddata = f + fs_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;
+ if (image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
+ {
+ Con_Print("LoadTGA: invalid size\n");
+ PrintTargaHeader(&targa_header);
return NULL;
- targa_header.pixel_size = fgetc(fin);
- targa_header.attributes = fgetc(fin);
-
- if (targa_header.image_type!=2
- && targa_header.image_type!=10)
- Host_Error ("LoadTGA: Only type 2 and 10 targa RGB images supported\n");
-
- if (targa_header.colormap_type !=0
- || (targa_header.pixel_size!=32 && targa_header.pixel_size!=24))
- Host_Error ("LoadTGA: Only 32 or 24 bit images supported (no colormaps)\n");
-
- columns = targa_header.width;
- rows = targa_header.height;
- numPixels = columns * rows;
-
- image_rgba = malloc (numPixels*4);
-
- if (targa_header.id_length != 0)
- fseek(fin, targa_header.id_length, SEEK_CUR); // skip TARGA image comment
-
- if (targa_header.image_type==2) { // Uncompressed, RGB images
- for(row=rows-1; row>=0; row--) {
- pixbuf = image_rgba + row*columns*4;
- for(column=0; column<columns; column++) {
- unsigned char red = 0,green = 0,blue = 0,alphabyte = 0;
- switch (targa_header.pixel_size) {
- case 24:
-
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = 255;
- break;
- case 32:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- alphabyte = getc(fin);
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = alphabyte;
- break;
- }
+ }
+ if ((matchwidth && image_width != matchwidth) || (matchheight && image_height != matchheight))
+ return NULL;
+ targa_header.pixel_size = f[16];
+ targa_header.attributes = f[17];
+
+ // 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++)
+ {
+ palette[x*4+2] = *fin++;
+ palette[x*4+1] = *fin++;
+ palette[x*4+0] = *fin++;
+ palette[x*4+3] = 255;
+ }
+ }
+ else if (targa_header.colormap_size == 32)
+ {
+ for (x = 0;x < targa_header.colormap_length;x++)
+ {
+ palette[x*4+2] = *fin++;
+ palette[x*4+1] = *fin++;
+ palette[x*4+0] = *fin++;
+ palette[x*4+3] = *fin++;
}
}
+ else
+ {
+ Con_Print("LoadTGA: Only 32 and 24 bit colormap_size supported\n");
+ PrintTargaHeader(&targa_header);
+ return NULL;
+ }
}
- else if (targa_header.image_type==10) { // Runlength encoded RGB images
- unsigned char red = 0,green = 0,blue = 0,alphabyte = 0,packetHeader,packetSize,j;
- for(row=rows-1; row>=0; row--) {
- pixbuf = image_rgba + row*columns*4;
- for(column=0; column<columns; ) {
- packetHeader=getc(fin);
- packetSize = 1 + (packetHeader & 0x7f);
- if (packetHeader & 0x80) { // run-length packet
- switch (targa_header.pixel_size) {
- case 24:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- alphabyte = 255;
- break;
- case 32:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- alphabyte = getc(fin);
- break;
- }
-
- for(j=0;j<packetSize;j++) {
- *pixbuf++=red;
- *pixbuf++=green;
- *pixbuf++=blue;
- *pixbuf++=alphabyte;
- column++;
- if (column==columns) { // run spans across rows
- column=0;
- if (row>0)
- row--;
- else
- goto breakOut;
- pixbuf = image_rgba + row*columns*4;
- }
- }
- }
- else { // non run-length packet
- for(j=0;j<packetSize;j++) {
- switch (targa_header.pixel_size) {
- case 24:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = 255;
- break;
- case 32:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- alphabyte = getc(fin);
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = alphabyte;
- break;
- }
- column++;
- if (column==columns) { // pixel packet run spans across rows
- column=0;
- if (row>0)
- row--;
- else
- goto breakOut;
- pixbuf = image_rgba + row*columns*4;
- }
+
+ // check our pixel_size restrictions according to image_type
+ if (targa_header.image_type == 2 || targa_header.image_type == 10)
+ {
+ 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;
+ }
+ }
+ else if (targa_header.image_type == 1 || targa_header.image_type == 9)
+ {
+ 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;
+ }
+ }
+ else if (targa_header.image_type == 3 || targa_header.image_type == 11)
+ {
+ 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;
+ }
+ }
+ else
+ {
+ Con_Printf("LoadTGA: Only type 1, 2, 3, 9, 10, and 11 targa RGB images supported, image_type = %i\n", targa_header.image_type);
+ 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;
+ }
+
+ image_rgba = Mem_Alloc(tempmempool, image_width * image_height * 4);
+ if (!image_rgba)
+ {
+ Con_Printf("LoadTGA: not enough memory for %i by %i image\n", image_width, image_height);
+ return NULL;
+ }
+
+ // If bit 5 of attributes isn't set, the image has been stored from bottom to top
+ if ((targa_header.attributes & 0x20) == 0)
+ {
+ pixbuf = image_rgba + (image_height - 1)*image_width*4;
+ row_inc = -image_width*4*2;
+ }
+ else
+ {
+ pixbuf = image_rgba;
+ row_inc = 0;
+ }
+
+ // 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;
+ }
+
+ compressed = targa_header.image_type == 9 || targa_header.image_type == 10 || targa_header.image_type == 11;
+ x = 0;
+ y = 0;
+ red = green = blue = alpha = 255;
+ while (y < image_height)
+ {
+ // decoder is mostly the same whether it's compressed or not
+ readpixelcount = 1000000;
+ runlen = 1000000;
+ if (compressed && fin < enddata)
+ {
+ runlen = *fin++;
+ // high bit indicates this is an RLE compressed run
+ if (runlen & 0x80)
+ readpixelcount = 1;
+ runlen = 1 + (runlen & 0x7f);
+ }
+
+ while((runlen--) && y < image_height)
+ {
+ if (readpixelcount > 0)
+ {
+ readpixelcount--;
+ red = green = blue = alpha = 255;
+ if (fin < enddata)
+ {
+ switch(targa_header.image_type)
+ {
+ case 1:
+ case 9:
+ // colormapped
+ pindex = *fin++;
+ if (pindex >= targa_header.colormap_length)
+ pindex = 0; // error
+ p = palette + pindex * 4;
+ red = p[0];
+ green = p[1];
+ blue = p[2];
+ alpha = p[3];
+ break;
+ case 2:
+ case 10:
+ // BGR or BGRA
+ blue = *fin++;
+ if (fin < enddata)
+ green = *fin++;
+ if (fin < enddata)
+ red = *fin++;
+ if (targa_header.pixel_size == 32 && fin < enddata)
+ alpha = *fin++;
+ break;
+ case 3:
+ case 11:
+ // greyscale
+ red = green = blue = *fin++;
+ break;
}
+ if (!alphabits)
+ alpha = 255;
}
}
- breakOut:;
+ *pixbuf++ = red;
+ *pixbuf++ = green;
+ *pixbuf++ = blue;
+ *pixbuf++ = alpha;
+ x++;
+ if (x == image_width)
+ {
+ // end of line, advance to next
+ x = 0;
+ y++;
+ pixbuf += row_inc;
+ }
}
}
-
- fclose(fin);
- image_width = columns;
- image_height = rows;
+
return image_rgba;
}
LoadLMP
============
*/
-byte* LoadLMP (FILE *f, int matchwidth, int matchheight)
+qbyte *LoadLMP (const qbyte *f, int matchwidth, int matchheight, qboolean loadAs8Bit)
{
- byte *image_rgba;
- int width, height;
+ qbyte *image_buffer;
+
+ if (fs_filesize < 9)
+ {
+ Con_Print("LoadLMP: invalid LMP file\n");
+ return NULL;
+ }
// parse the very complicated header *chuckle*
- width = fgetLittleLong(f);
- height = fgetLittleLong(f);
- if ((unsigned) width > 4096 || (unsigned) height > 4096)
- Host_Error("LoadLMP: invalid size\n");
- if (matchwidth && width != matchwidth)
+ image_width = BuffLittleLong(f);
+ image_height = BuffLittleLong(f + 4);
+ if (image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
+ {
+ Con_Printf("LoadLMP: invalid size %ix%i\n", image_width, image_height);
return NULL;
- if (matchheight && height != matchheight)
+ }
+ if ((matchwidth && image_width != matchwidth) || (matchheight && image_height != matchheight))
return NULL;
- image_rgba = malloc(width*height*4);
- fread(image_rgba + width*height*3, 1, width*height, f);
- fclose(f);
+ if (fs_filesize < 8 + image_width * image_height)
+ {
+ Con_Print("LoadLMP: invalid LMP file\n");
+ return NULL;
+ }
- Image_Copy8bitRGBA(image_rgba + width*height*3, image_rgba, width*height, d_8to24table);
- image_width = width;
- image_height = height;
+ if (loadAs8Bit)
+ {
+ image_buffer = Mem_Alloc(tempmempool, image_width * image_height);
+ memcpy(image_buffer, f + 8, image_width * image_height);
+ }
+ else
+ {
+ image_buffer = Mem_Alloc(tempmempool, image_width * image_height * 4);
+ Image_Copy8bitRGBA(f + 8, image_buffer, image_width * image_height, palette_complete);
+ }
+ return image_buffer;
+}
+
+static qbyte *LoadLMPRGBA (const qbyte *f, int matchwidth, int matchheight)
+{
+ return LoadLMP(f, matchwidth, matchheight, false);
+}
+
+
+typedef struct
+{
+ 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;
+
+qbyte *LoadWAL (const qbyte *f, int matchwidth, int matchheight)
+{
+ qbyte *image_rgba;
+ const q2wal_t *inwal = (const void *)f;
+
+ if (fs_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 > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
+ {
+ Con_Printf("LoadWAL: invalid size %ix%i\n", image_width, image_height);
+ return NULL;
+ }
+ if ((matchwidth && image_width != matchwidth) || (matchheight && image_height != matchheight))
+ return NULL;
+
+ if ((int) fs_filesize < (int) sizeof(q2wal_t) + (int) LittleLong(inwal->offsets[0]) + image_width * image_height)
+ {
+ Con_Print("LoadWAL: invalid WAL file\n");
+ return NULL;
+ }
+
+ image_rgba = Mem_Alloc(tempmempool, image_width * image_height * 4);
+ if (!image_rgba)
+ {
+ Con_Printf("LoadLMP: not enough memory for %i by %i image\n", image_width, image_height);
+ return NULL;
+ }
+ Image_Copy8bitRGBA(f + LittleLong(inwal->offsets[0]), image_rgba, image_width * image_height, palette_complete);
return image_rgba;
}
-void Image_StripImageExtension (char *in, char *out)
+
+void Image_StripImageExtension (const char *in, char *out)
{
- char *end;
+ const char *end, *temp;
end = in + strlen(in);
if ((end - in) >= 4)
{
- if (strcmp(end - 4, ".tga") == 0 || strcmp(end - 4, ".pcx") == 0 || strcmp(end - 4, ".lmp") == 0)
- end -= 4;
+ temp = end - 4;
+ if (strcmp(temp, ".tga") == 0
+ || strcmp(temp, ".pcx") == 0
+ || strcmp(temp, ".lmp") == 0
+ || strcmp(temp, ".png") == 0
+ || strcmp(temp, ".jpg") == 0)
+ end = temp;
while (in < end)
*out++ = *in++;
*out++ = 0;
strcpy(out, in);
}
-byte* loadimagepixels (char* filename, qboolean complain, int matchwidth, int matchheight)
+struct
+{
+ const char *formatstring;
+ qbyte *(*loadfunc)(const qbyte *f, int matchwidth, int matchheight);
+}
+imageformats[] =
+{
+ {"override/%s.tga", LoadTGA},
+ {"override/%s.jpg", JPEG_LoadImage},
+ {"textures/%s.tga", LoadTGA},
+ {"textures/%s.jpg", JPEG_LoadImage},
+ {"textures/%s.pcx", LoadPCX},
+ {"textures/%s.wal", LoadWAL},
+ {"%s.tga", LoadTGA},
+ {"%s.jpg", JPEG_LoadImage},
+ {"%s.pcx", LoadPCX},
+ {"%s.lmp", LoadLMPRGBA},
+ {NULL, NULL}
+};
+
+qbyte *loadimagepixels (const char *filename, qboolean complain, int matchwidth, int matchheight)
{
- FILE *f;
- char basename[256], name[256];
- byte *image_rgba, *c;
- Image_StripImageExtension(filename, basename); // strip .tga, .pcx and .lmp extensions to allow replacement by other types
+ int i;
+ qbyte *f, *data = NULL;
+ char basename[MAX_QPATH], name[MAX_QPATH], *c;
+ if (developer_memorydebug.integer)
+ Mem_CheckSentinelsGlobal();
+ if (developer_texturelogging.integer)
+ Log_Printf("textures.log", "%s\n", filename);
+ strlcpy(basename, filename, sizeof(basename));
+ Image_StripImageExtension(basename, basename); // strip filename extensions to allow replacement by other types
// replace *'s with #, so commandline utils don't get confused when dealing with the external files
for (c = basename;*c;c++)
if (*c == '*')
*c = '#';
- sprintf (name, "textures/%s.tga", basename);
- COM_FOpenFile (name, &f, true);
- if (f)
- return LoadTGA (f, matchwidth, matchheight);
- sprintf (name, "textures/%s.pcx", basename);
- COM_FOpenFile (name, &f, true);
- if (f)
- return LoadPCX (f, matchwidth, matchheight);
- sprintf (name, "%s.tga", basename);
- Con_Printf("name = %s : ", name);
- COM_FOpenFile (name, &f, true);
- if (f)
- {
- Con_Printf("succeeded\n");
- return LoadTGA (f, matchwidth, matchheight);
+ for (i = 0;imageformats[i].formatstring;i++)
+ {
+ sprintf (name, imageformats[i].formatstring, basename);
+ f = FS_LoadFile(name, tempmempool, true);
+ if (f)
+ {
+ data = imageformats[i].loadfunc(f, matchwidth, matchheight);
+ Mem_Free(f);
+ if (data)
+ {
+ Con_DPrintf("loaded image %s (%dx%d)\n", name, image_width, image_height);
+ if (developer_memorydebug.integer)
+ Mem_CheckSentinelsGlobal();
+ return data;
+ }
+ }
}
- else
- Con_Printf("failed\n");
- sprintf (name, "%s.pcx", basename);
- COM_FOpenFile (name, &f, true);
- if (f)
- return LoadPCX (f, matchwidth, matchheight);
- sprintf (name, "%s.lmp", basename);
- COM_FOpenFile (name, &f, true);
- if (f)
- return LoadLMP (f, matchwidth, matchheight);
- if ((image_rgba = W_GetTexture(basename, matchwidth, matchheight)))
- return image_rgba;
- COM_StripExtension(filename, basename); // do it again with a * this time
- if ((image_rgba = W_GetTexture(basename, matchwidth, matchheight)))
- return image_rgba;
if (complain)
- Con_Printf ("Couldn't load %s.tga or .pcx\n", filename);
+ {
+ Con_Printf("Couldn't load %s using ", filename);
+ for (i = 0;imageformats[i].formatstring;i++)
+ {
+ sprintf (name, imageformats[i].formatstring, basename);
+ Con_Printf(i == 0 ? "\"%s\"" : (imageformats[i+1].formatstring ? ", \"%s\"" : " or \"%s\".\n"), imageformats[i].formatstring);
+ }
+ }
+ if (developer_memorydebug.integer)
+ Mem_CheckSentinelsGlobal();
return NULL;
}
-int image_makemask (byte *in, byte *out, int size)
+int image_makemask (const qbyte *in, qbyte *out, int size)
{
- int i, count;
+ int i, count;
count = 0;
for (i = 0;i < size;i++)
{
return count;
}
-byte* loadimagepixelsmask (char* filename, qboolean complain, int matchwidth, int matchheight)
+qbyte* loadimagepixelsmask (const char *filename, qboolean complain, int matchwidth, int matchheight)
{
- byte *in, *data;
+ qbyte *in, *data;
in = data = loadimagepixels(filename, complain, matchwidth, matchheight);
if (!data)
return NULL;
return data; // some transparency
else
{
- free(data);
+ Mem_Free(data);
return NULL; // all opaque
}
}
-int loadtextureimage (char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap)
+rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags)
{
- int texnum;
- byte *data;
+ qbyte *data;
+ rtexture_t *rt;
if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
return 0;
- texnum = GL_LoadTexture (filename, image_width, image_height, data, mipmap, true, 4);
- free(data);
- return texnum;
+ rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
+ Mem_Free(data);
+ return rt;
}
-int loadtextureimagemask (char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap)
+rtexture_t *loadtextureimagemask (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags)
{
- int texnum;
- byte *data;
+ qbyte *data;
+ rtexture_t *rt;
if (!(data = loadimagepixelsmask (filename, complain, matchwidth, matchheight)))
return 0;
- texnum = GL_LoadTexture (filename, image_width, image_height, data, mipmap, true, 4);
- free(data);
- return texnum;
+ rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
+ Mem_Free(data);
+ return rt;
}
-int image_masktexnum;
-int loadtextureimagewithmask (char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap)
+rtexture_t *image_masktex;
+rtexture_t *image_nmaptex;
+rtexture_t *loadtextureimagewithmask (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags)
{
- int texnum, count;
- byte *data;
- char *filename2;
- image_masktexnum = 0;
+ qbyte *data;
+ rtexture_t *rt;
+ image_masktex = NULL;
+ image_nmaptex = NULL;
if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
return 0;
- texnum = GL_LoadTexture (filename, image_width, image_height, data, mipmap, true, 4);
- count = image_makemask(data, data, image_width * image_height);
- if (count)
- {
- filename2 = malloc(strlen(filename) + 6);
- sprintf(filename2, "%s_mask", filename);
- image_masktexnum = GL_LoadTexture (filename2, image_width, image_height, data, mipmap, true, 4);
- free(filename2);
- }
- free(data);
- return texnum;
+
+ rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
+
+ if (flags & TEXF_ALPHA && image_makemask(data, data, image_width * image_height))
+ image_masktex = R_LoadTexture2D(pool, va("%s_mask", filename), image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
+
+ Mem_Free(data);
+ return rt;
+}
+
+rtexture_t *loadtextureimagewithmaskandnmap (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags, float bumpscale)
+{
+ qbyte *data, *data2;
+ rtexture_t *rt;
+ image_masktex = NULL;
+ image_nmaptex = NULL;
+ if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
+ return 0;
+
+ data2 = Mem_Alloc(tempmempool, image_width * image_height * 4);
+
+ rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
+
+ Image_HeightmapToNormalmap(data, data2, image_width, image_height, (flags & TEXF_CLAMP) != 0, bumpscale);
+ image_nmaptex = R_LoadTexture2D(pool, va("%s_nmap", filename), image_width, image_height, data2, TEXTYPE_RGBA, flags, NULL);
+
+ if (flags & TEXF_ALPHA && image_makemask(data, data2, image_width * image_height))
+ image_masktex = R_LoadTexture2D(pool, va("%s_mask", filename), image_width, image_height, data2, TEXTYPE_RGBA, flags, NULL);
+
+ Mem_Free(data2);
+
+ Mem_Free(data);
+ return rt;
}
-void Image_WriteTGARGB (char *filename, int width, int height, byte *data)
+rtexture_t *loadtextureimagebumpasnmap (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags, float bumpscale)
{
- byte *buffer, *in, *out, *end;
+ qbyte *data, *data2;
+ rtexture_t *rt;
+ if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
+ return 0;
+ data2 = Mem_Alloc(tempmempool, image_width * image_height * 4);
- buffer = malloc(width*height*3 + 18);
+ Image_HeightmapToNormalmap(data, data2, image_width, image_height, (flags & TEXF_CLAMP) != 0, bumpscale);
+ rt = R_LoadTexture2D(pool, filename, image_width, image_height, data2, TEXTYPE_RGBA, flags, NULL);
+
+ Mem_Free(data2);
+ Mem_Free(data);
+ return rt;
+}
+
+qboolean Image_WriteTGARGB_preflipped (const char *filename, int width, int height, const qbyte *data, qbyte *buffer)
+{
+ qboolean ret;
+ qbyte *out;
+ const qbyte *in, *end;
memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
// swap rgb to bgr
in = data;
- end = in + width*height*3;
out = buffer + 18;
+ end = in + width*height*3;
for (;in < end;in += 3)
{
*out++ = in[2];
*out++ = in[1];
*out++ = in[0];
}
- COM_WriteFile (filename, buffer, glwidth*glheight*3 + 18 );
+ ret = FS_WriteFile (filename, buffer, width*height*3 + 18 );
- free(buffer);
+ return ret;
}
+
+void Image_WriteTGARGB (const char *filename, int width, int height, const qbyte *data)
+{
+ int y;
+ qbyte *buffer, *out;
+ const qbyte *in, *end;
+
+ buffer = Mem_Alloc(tempmempool, width*height*3 + 18);
+
+ memset (buffer, 0, 18);
+ buffer[2] = 2; // uncompressed type
+ buffer[12] = (width >> 0) & 0xFF;
+ buffer[13] = (width >> 8) & 0xFF;
+ buffer[14] = (height >> 0) & 0xFF;
+ buffer[15] = (height >> 8) & 0xFF;
+ buffer[16] = 24; // pixel size
+
+ // swap rgb to bgr and flip upside down
+ out = buffer + 18;
+ for (y = height - 1;y >= 0;y--)
+ {
+ in = data + y * width * 3;
+ end = in + width * 3;
+ for (;in < end;in += 3)
+ {
+ *out++ = in[2];
+ *out++ = in[1];
+ *out++ = in[0];
+ }
+ }
+ FS_WriteFile (filename, buffer, width*height*3 + 18 );
+
+ Mem_Free(buffer);
+}
+
+void Image_WriteTGARGBA (const char *filename, int width, int height, const qbyte *data)
+{
+ int y;
+ qbyte *buffer, *out;
+ const qbyte *in, *end;
+
+ buffer = Mem_Alloc(tempmempool, width*height*4 + 18);
+
+ memset (buffer, 0, 18);
+ buffer[2] = 2; // uncompressed type
+ buffer[12] = (width >> 0) & 0xFF;
+ buffer[13] = (width >> 8) & 0xFF;
+ buffer[14] = (height >> 0) & 0xFF;
+ buffer[15] = (height >> 8) & 0xFF;
+ buffer[16] = 32; // pixel size
+ buffer[17] = 8; // transparent flag? (seems to be needed by gimp)
+
+ // swap rgba to bgra 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[2];
+ *out++ = in[1];
+ *out++ = in[0];
+ *out++ = in[3];
+ }
+ }
+ FS_WriteFile (filename, buffer, width*height*4 + 18 );
+
+ Mem_Free(buffer);
+}
+
+qboolean Image_CheckAlpha(const qbyte *data, int size, qboolean rgba)
+{
+ const qbyte *end;
+ if (rgba)
+ {
+ // check alpha bytes
+ for (end = data + size * 4, data += 3;data < end;data += 4)
+ if (*data < 255)
+ return 1;
+ }
+ else
+ {
+ // color 255 is transparent
+ for (end = data + size;data < end;data++)
+ if (*data == 255)
+ return 1;
+ }
+ return 0;
+}
+
+static void Image_Resample32LerpLine (const qbyte *in, qbyte *out, int inwidth, int outwidth)
+{
+ 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++ = (qbyte) ((((in[4] - in[0]) * lerp) >> 16) + in[0]);
+ *out++ = (qbyte) ((((in[5] - in[1]) * lerp) >> 16) + in[1]);
+ *out++ = (qbyte) ((((in[6] - in[2]) * lerp) >> 16) + in[2]);
+ *out++ = (qbyte) ((((in[7] - in[3]) * lerp) >> 16) + in[3]);
+ }
+ else // last pixel of the line has no pixel to lerp to
+ {
+ *out++ = in[0];
+ *out++ = in[1];
+ *out++ = in[2];
+ *out++ = in[3];
+ }
+ }
+}
+
+static void Image_Resample24LerpLine (const qbyte *in, qbyte *out, int inwidth, int outwidth)
+{
+ int j, xi, oldx = 0, f, fstep, endx, lerp;
+ fstep = (int) (inwidth*65536.0f/outwidth);
+ endx = (inwidth-1);
+ for (j = 0,f = 0;j < outwidth;j++, f += fstep)
+ {
+ xi = f >> 16;
+ if (xi != oldx)
+ {
+ in += (xi - oldx) * 3;
+ oldx = xi;
+ }
+ if (xi < endx)
+ {
+ lerp = f & 0xFFFF;
+ *out++ = (qbyte) ((((in[3] - in[0]) * lerp) >> 16) + in[0]);
+ *out++ = (qbyte) ((((in[4] - in[1]) * lerp) >> 16) + in[1]);
+ *out++ = (qbyte) ((((in[5] - in[2]) * lerp) >> 16) + in[2]);
+ }
+ else // last pixel of the line has no pixel to lerp to
+ {
+ *out++ = in[0];
+ *out++ = in[1];
+ *out++ = in[2];
+ }
+ }
+}
+
+#define LERPBYTE(i) r = resamplerow1[i];out[i] = (qbyte) ((((resamplerow2[i] - r) * lerp) >> 16) + r)
+void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+{
+ int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth4 = inwidth*4, outwidth4 = outwidth*4;
+ qbyte *out;
+ const qbyte *inrow;
+ qbyte *resamplerow1;
+ qbyte *resamplerow2;
+ out = outdata;
+ fstep = (int) (inheight*65536.0f/outheight);
+
+ resamplerow1 = Mem_Alloc(tempmempool, outwidth*4*2);
+ resamplerow2 = resamplerow1 + outwidth*4;
+
+ inrow = 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 = (qbyte *)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 = (qbyte *)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 = 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;
+ }
+ }
+}
+
+void Image_Resample24Lerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+{
+ int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth3 = inwidth * 3, outwidth3 = outwidth * 3;
+ qbyte *out;
+ const qbyte *inrow;
+ qbyte *resamplerow1;
+ qbyte *resamplerow2;
+ out = outdata;
+ fstep = (int) (inheight*65536.0f/outheight);
+
+ resamplerow1 = Mem_Alloc(tempmempool, outwidth*3*2);
+ resamplerow2 = resamplerow1 + outwidth*3;
+
+ inrow = indata;
+ oldy = 0;
+ Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ Image_Resample24LerpLine (inrow + inwidth3, resamplerow2, inwidth, outwidth);
+ for (i = 0, f = 0;i < outheight;i++,f += fstep)
+ {
+ yi = f >> 16;
+ if (yi < endy)
+ {
+ lerp = f & 0xFFFF;
+ if (yi != oldy)
+ {
+ inrow = (qbyte *)indata + inwidth3*yi;
+ if (yi == oldy+1)
+ memcpy(resamplerow1, resamplerow2, outwidth3);
+ else
+ Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ Image_Resample24LerpLine (inrow + inwidth3, resamplerow2, inwidth, outwidth);
+ oldy = yi;
+ }
+ j = outwidth - 4;
+ while(j >= 0)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ LERPBYTE( 3);
+ LERPBYTE( 4);
+ LERPBYTE( 5);
+ LERPBYTE( 6);
+ LERPBYTE( 7);
+ LERPBYTE( 8);
+ LERPBYTE( 9);
+ LERPBYTE(10);
+ LERPBYTE(11);
+ out += 12;
+ resamplerow1 += 12;
+ resamplerow2 += 12;
+ j -= 4;
+ }
+ if (j & 2)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ LERPBYTE( 3);
+ LERPBYTE( 4);
+ LERPBYTE( 5);
+ out += 6;
+ resamplerow1 += 6;
+ resamplerow2 += 6;
+ }
+ if (j & 1)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ out += 3;
+ resamplerow1 += 3;
+ resamplerow2 += 3;
+ }
+ resamplerow1 -= outwidth3;
+ resamplerow2 -= outwidth3;
+ }
+ else
+ {
+ if (yi != oldy)
+ {
+ inrow = (qbyte *)indata + inwidth3*yi;
+ if (yi == oldy+1)
+ memcpy(resamplerow1, resamplerow2, outwidth3);
+ else
+ Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ oldy = yi;
+ }
+ memcpy(out, resamplerow1, outwidth3);
+ }
+ }
+ Mem_Free(resamplerow1);
+ resamplerow1 = NULL;
+ resamplerow2 = NULL;
+}
+
+void Image_Resample24Nolerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+{
+ int i, j, f, inwidth3 = inwidth * 3;
+ unsigned frac, fracstep;
+ qbyte *inrow, *out;
+ out = outdata;
+
+ fracstep = inwidth*0x10000/outwidth;
+ for (i = 0;i < outheight;i++)
+ {
+ inrow = (qbyte *)indata + inwidth3*(i*inheight/outheight);
+ frac = fracstep >> 1;
+ j = outwidth - 4;
+ while (j >= 0)
+ {
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ j -= 4;
+ }
+ if (j & 2)
+ {
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ out += 2;
+ }
+ if (j & 1)
+ {
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ out += 1;
+ }
+ }
+}
+
+/*
+================
+Image_Resample
+================
+*/
+void Image_Resample (const void *indata, int inwidth, int inheight, int indepth, void *outdata, int outwidth, int outheight, int outdepth, int bytesperpixel, int quality)
+{
+ if (indepth != 1 || outdepth != 1)
+ {
+ Con_Printf ("Image_Resample: 3D resampling not supported\n");
+ return;
+ }
+ if (bytesperpixel == 4)
+ {
+ if (quality)
+ Image_Resample32Lerp(indata, inwidth, inheight, outdata, outwidth, outheight);
+ else
+ Image_Resample32Nolerp(indata, inwidth, inheight, outdata, outwidth, outheight);
+ }
+ else if (bytesperpixel == 3)
+ {
+ if (quality)
+ Image_Resample24Lerp(indata, inwidth, inheight, outdata, outwidth, outheight);
+ else
+ Image_Resample24Nolerp(indata, inwidth, inheight, outdata, outwidth, outheight);
+ }
+ else
+ Con_Printf ("Image_Resample: unsupported bytesperpixel %i\n", bytesperpixel);
+}
+
+// in can be the same as out
+void Image_MipReduce(const qbyte *in, qbyte *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth, int bytesperpixel)
+{
+ int x, y, nextrow;
+ if (*depth != 1 || destdepth != 1)
+ {
+ Con_Printf ("Image_Resample: 3D resampling not supported\n");
+ return;
+ }
+ nextrow = *width * bytesperpixel;
+ if (*width > destwidth)
+ {
+ *width >>= 1;
+ if (*height > destheight)
+ {
+ // reduce both
+ *height >>= 1;
+ if (bytesperpixel == 4)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[4] + in[nextrow ] + in[nextrow+4]) >> 2);
+ out[1] = (qbyte) ((in[1] + in[5] + in[nextrow+1] + in[nextrow+5]) >> 2);
+ out[2] = (qbyte) ((in[2] + in[6] + in[nextrow+2] + in[nextrow+6]) >> 2);
+ out[3] = (qbyte) ((in[3] + in[7] + in[nextrow+3] + in[nextrow+7]) >> 2);
+ out += 4;
+ in += 8;
+ }
+ in += nextrow; // skip a line
+ }
+ }
+ else if (bytesperpixel == 3)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[3] + in[nextrow ] + in[nextrow+3]) >> 2);
+ out[1] = (qbyte) ((in[1] + in[4] + in[nextrow+1] + in[nextrow+4]) >> 2);
+ out[2] = (qbyte) ((in[2] + in[5] + in[nextrow+2] + in[nextrow+5]) >> 2);
+ out += 3;
+ in += 6;
+ }
+ in += nextrow; // skip a line
+ }
+ }
+ else
+ Con_Printf ("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
+ }
+ else
+ {
+ // reduce width
+ if (bytesperpixel == 4)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[4]) >> 1);
+ out[1] = (qbyte) ((in[1] + in[5]) >> 1);
+ out[2] = (qbyte) ((in[2] + in[6]) >> 1);
+ out[3] = (qbyte) ((in[3] + in[7]) >> 1);
+ out += 4;
+ in += 8;
+ }
+ }
+ }
+ else if (bytesperpixel == 3)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[3]) >> 1);
+ out[1] = (qbyte) ((in[1] + in[4]) >> 1);
+ out[2] = (qbyte) ((in[2] + in[5]) >> 1);
+ out += 3;
+ in += 6;
+ }
+ }
+ }
+ else
+ Con_Printf ("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
+ }
+ }
+ else
+ {
+ if (*height > destheight)
+ {
+ // reduce height
+ *height >>= 1;
+ if (bytesperpixel == 4)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[nextrow ]) >> 1);
+ out[1] = (qbyte) ((in[1] + in[nextrow+1]) >> 1);
+ out[2] = (qbyte) ((in[2] + in[nextrow+2]) >> 1);
+ out[3] = (qbyte) ((in[3] + in[nextrow+3]) >> 1);
+ out += 4;
+ in += 4;
+ }
+ in += nextrow; // skip a line
+ }
+ }
+ else if (bytesperpixel == 3)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[nextrow ]) >> 1);
+ out[1] = (qbyte) ((in[1] + in[nextrow+1]) >> 1);
+ out[2] = (qbyte) ((in[2] + in[nextrow+2]) >> 1);
+ out += 3;
+ in += 3;
+ }
+ in += nextrow; // skip a line
+ }
+ }
+ else
+ Con_Printf ("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
+ }
+ else
+ Con_Printf ("Image_MipReduce: desired size already achieved\n");
+ }
+}
+
+void Image_HeightmapToNormalmap(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale)
+{
+ int x, y;
+ const unsigned char *p0, *p1, *p2;
+ unsigned char *out;
+ float iwidth, iheight, ibumpscale, n[3];
+ iwidth = 1.0f / width;
+ iheight = 1.0f / height;
+ ibumpscale = (255.0f * 3.0f) / bumpscale;
+ out = outpixels;
+ for (y = 0;y < height;y++)
+ {
+ for (x = 0;x < width;x++)
+ {
+ p0 = inpixels + (y * width + x) * 4;
+ if (x == width - 1)
+ {
+ if (clamp)
+ p1 = inpixels + (y * width + x) * 4;
+ else
+ p1 = inpixels + (y * width) * 4;
+ }
+ else
+ p1 = inpixels + (y * width + x + 1) * 4;
+ if (y == height - 1)
+ {
+ if (clamp)
+ p2 = inpixels + (y * width + x) * 4;
+ else
+ p2 = inpixels + x * 4;
+ }
+ else
+ p2 = inpixels + ((y + 1) * width + x) * 4;
+ /*
+ dv[0][0] = iwidth;
+ dv[0][1] = 0;
+ dv[0][2] = ((p0[0] + p0[1] + p0[2]) * ibumpscale) - ((p1[0] + p1[1] + p1[2]) * ibumpscale);
+ dv[1][0] = 0;
+ dv[1][1] = iheight;
+ dv[1][2] = ((p2[0] + p2[1] + p2[2]) * ibumpscale) - ((p0[0] + p0[1] + p0[2]) * ibumpscale);
+ n[0] = dv[0][1]*dv[1][2]-dv[0][2]*dv[1][1];
+ n[1] = dv[0][2]*dv[1][0]-dv[0][0]*dv[1][2];
+ n[2] = dv[0][0]*dv[1][1]-dv[0][1]*dv[1][0];
+ */
+ n[0] = ((p0[0] + p0[1] + p0[2]) - (p1[0] + p1[1] + p1[2]));
+ n[1] = ((p2[0] + p2[1] + p2[2]) - (p0[0] + p0[1] + p0[2]));
+ n[2] = ibumpscale;
+ VectorNormalize(n);
+ /*
+ // this should work for the bottom right triangle if anyone wants
+ // code for that for some reason
+ n[0] = ((p3[0] + p3[1] + p3[2]) - (p1[0] + p1[1] + p1[2]));
+ n[1] = ((p2[0] + p2[1] + p2[2]) - (p3[0] + p3[1] + p3[2]));
+ n[2] = ibumpscale;
+ VectorNormalize(n);
+ */
+ out[0] = 128.0f + n[0] * 127.0f;
+ out[1] = 128.0f + n[1] * 127.0f;
+ out[2] = 128.0f + n[2] * 127.0f;
+ out[3] = (p0[0] + p0[1] + p0[2]) / 3;
+ out += 4;
+ }
+ }
+}
+
+int image_loadskin(imageskin_t *s, char *shadername)
+{
+ int j;
+ qbyte *bumppixels;
+ int bumppixels_width, bumppixels_height;
+ char name[MAX_QPATH];
+ strlcpy(name, shadername, sizeof(name));
+ Image_StripImageExtension(name, name);
+ memset(s, 0, sizeof(*s));
+ s->basepixels = loadimagepixels(name, false, 0, 0);
+ if (s->basepixels == NULL)
+ return false;
+ s->basepixels_width = image_width;
+ s->basepixels_height = image_height;
+
+ bumppixels = NULL;bumppixels_width = 0;bumppixels_height = 0;
+ if (Image_CheckAlpha(s->basepixels, s->basepixels_width * s->basepixels_height, true))
+ {
+ s->maskpixels = Mem_Alloc(loadmodel->mempool, s->basepixels_width * s->basepixels_height * 4);
+ s->maskpixels_width = s->basepixels_width;
+ s->maskpixels_height = s->basepixels_height;
+ memcpy(s->maskpixels, s->basepixels, s->maskpixels_width * s->maskpixels_height * 4);
+ for (j = 0;j < s->basepixels_width * s->basepixels_height * 4;j += 4)
+ {
+ s->maskpixels[j+0] = 255;
+ s->maskpixels[j+1] = 255;
+ s->maskpixels[j+2] = 255;
+ }
+ }
+
+ // _luma is supported for tenebrae compatibility
+ // (I think it's a very stupid name, but oh well)
+ if ((s->glowpixels = loadimagepixels(va("%s_glow", name), false, 0, 0)) != NULL
+ || (s->glowpixels = loadimagepixels(va("%s_luma", name), false, 0, 0)) != NULL)
+ {
+ s->glowpixels_width = image_width;
+ s->glowpixels_height = image_height;
+ }
+ // _norm is the name used by tenebrae
+ // (I don't like the name much)
+ if ((s->nmappixels = loadimagepixels(va("%s_norm", name), false, 0, 0)) != NULL)
+ {
+ s->nmappixels_width = image_width;
+ s->nmappixels_height = image_height;
+ }
+ else if ((bumppixels = loadimagepixels(va("%s_bump", name), false, 0, 0)) != NULL)
+ {
+ bumppixels_width = image_width;
+ bumppixels_height = image_height;
+ }
+ if ((s->glosspixels = loadimagepixels(va("%s_gloss", name), false, 0, 0)) != NULL)
+ {
+ s->glosspixels_width = image_width;
+ s->glosspixels_height = image_height;
+ }
+ if ((s->pantspixels = loadimagepixels(va("%s_pants", name), false, 0, 0)) != NULL)
+ {
+ s->pantspixels_width = image_width;
+ s->pantspixels_height = image_height;
+ }
+ if ((s->shirtpixels = loadimagepixels(va("%s_shirt", name), false, 0, 0)) != NULL)
+ {
+ s->shirtpixels_width = image_width;
+ s->shirtpixels_height = image_height;
+ }
+
+ if (s->nmappixels == NULL)
+ {
+ if (bumppixels != NULL)
+ {
+ if (r_shadow_bumpscale_bumpmap.value > 0)
+ {
+ s->nmappixels = Mem_Alloc(loadmodel->mempool, bumppixels_width * bumppixels_height * 4);
+ s->nmappixels_width = bumppixels_width;
+ s->nmappixels_height = bumppixels_height;
+ Image_HeightmapToNormalmap(bumppixels, s->nmappixels, s->nmappixels_width, s->nmappixels_height, false, r_shadow_bumpscale_bumpmap.value);
+ }
+ }
+ else
+ {
+ if (r_shadow_bumpscale_basetexture.value > 0)
+ {
+ s->nmappixels = Mem_Alloc(loadmodel->mempool, s->basepixels_width * s->basepixels_height * 4);
+ s->nmappixels_width = s->basepixels_width;
+ s->nmappixels_height = s->basepixels_height;
+ Image_HeightmapToNormalmap(s->basepixels, s->nmappixels, s->nmappixels_width, s->nmappixels_height, false, r_shadow_bumpscale_basetexture.value);
+ }
+ }
+ }
+ if (bumppixels != NULL)
+ Mem_Free(bumppixels);
+ return true;
+}
+
+void image_freeskin(imageskin_t *s)
+{
+ if (s->basepixels)
+ Mem_Free(s->basepixels);
+ if (s->maskpixels)
+ Mem_Free(s->maskpixels);
+ if (s->nmappixels)
+ Mem_Free(s->nmappixels);
+ if (s->glowpixels)
+ Mem_Free(s->glowpixels);
+ if (s->glosspixels)
+ Mem_Free(s->glosspixels);
+ if (s->pantspixels)
+ Mem_Free(s->pantspixels);
+ if (s->shirtpixels)
+ Mem_Free(s->shirtpixels);
+ memset(s, 0, sizeof(*s));
+}
+
projects / xonotic / darkplaces.git / blobdiff