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fteqw/engine/client/image.c
Spoike 3e2bffdddc preliminary first real attempt at letting the csqc draw loading screens. added some serverkey fields to query load progress. 
misc fixes for the webgl port.
silence some warnings reported by llvm.
hide windows cursor in webgl port. use software cursor for now. will need to use url+dataurl at some point.
ignore f11 key, because it makes firefox a bit unusable in certain situations.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4801 fc73d0e0-1445-4013-8a0c-d673dee63da5
2014-12-11 16:26:26 +00:00

4520 lines
113 KiB
C
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#include "quakedef.h"
#include "shader.h"
//FIXME
texid_t GL_FindTextureFallback (const char *identifier, unsigned int flags, void *fallback, int fallbackwidth, int fallbackheight, uploadfmt_t fallbackfmt);
//FIXME
#ifdef NPFTE
//#define Con_Printf(f, ...)
//hope you're on a littleendian machine
#define LittleShort(s) s
#define LittleLong(s) s
#else
cvar_t r_dodgytgafiles = CVARD("r_dodgytgafiles", "0", "Many old glquake engines had a buggy tga loader that ignored bottom-up flags. Naturally people worked around this and the world was plagued with buggy images. Most engines have now fixed the bug, but you can reenable it if you have bugged tga files.");
cvar_t r_dodgypcxfiles = CVARD("r_dodgypcxfiles", "0", "When enabled, this will ignore the palette stored within pcx files, for compatibility with quake2.");
char *r_defaultimageextensions =
#ifdef IMAGEFMT_DDS
"dds " //compressed or something
#endif
"tga" //fairly fast to load
#ifdef AVAIL_PNGLIB
" png" //pngs, fairly common, but slow
#endif
//" bmp" //wtf? at least not lossy
#ifdef AVAIL_JPEGLIB
" jpg" //q3 uses some jpegs, for some reason
#endif
#ifdef IMAGEFMT_BLP
//" blp" //blizzard picture, for the luls
#endif
" pcx" //pcxes are the original gamedata of q2. So we don't want them to override pngs.
;
void R_ImageExtensions_Callback(struct cvar_s *var, char *oldvalue);
cvar_t r_imageexensions = CVARCD("r_imageexensions", NULL, R_ImageExtensions_Callback, "The list of image file extensions which fte should attempt to load.");
extern cvar_t gl_lerpimages;
extern cvar_t gl_picmip2d;
extern cvar_t gl_picmip;
extern cvar_t r_shadow_bumpscale_basetexture;
extern cvar_t r_shadow_bumpscale_bumpmap;
static bucket_t *imagetablebuckets[256];
static hashtable_t imagetable;
static image_t *imagelist;
#endif
#ifndef _WIN32
#include <unistd.h>
#endif
typedef struct { //cm = colourmap
char id_len; //0
char cm_type; //1
char version; //2
short cm_idx; //3
short cm_len; //5
char cm_size; //7
short originx; //8 (ignored)
short originy; //10 (ignored)
short width; //12-13
short height; //14-15
qbyte bpp; //16
qbyte attribs; //17
} tgaheader_t;
char *ReadGreyTargaFile (qbyte *data, int flen, tgaheader_t *tgahead, int asgrey) //preswapped header
{
int columns, rows;
int row, column;
qbyte *pixbuf, *pal;
qboolean flipped;
qbyte *pixels = BZ_Malloc(tgahead->width * tgahead->height * (asgrey?1:4));
if (tgahead->version!=1
&& tgahead->version!=3)
{
Con_Printf("LoadGrayTGA: Only type 1 and 3 greyscale targa images are understood.\n");
BZ_Free(pixels);
return NULL;
}
if (tgahead->version==1 && tgahead->bpp != 8 &&
tgahead->cm_size != 24 && tgahead->cm_len != 256)
{
Con_Printf("LoadGrayTGA: Strange palette type\n");
BZ_Free(pixels);
return NULL;
}
columns = tgahead->width;
rows = tgahead->height;
flipped = !((tgahead->attribs & 0x20) >> 5);
#ifndef NPFTE
if (r_dodgytgafiles.value)
flipped = true;
#endif
if (tgahead->version == 1)
{
pal = data;
data += tgahead->cm_len*3;
if (asgrey)
{
for(row=rows-1; row>=0; row--)
{
if (flipped)
pixbuf = pixels + row*columns;
else
pixbuf = pixels + ((rows-1)-row)*columns;
for(column=0; column<columns; column++)
*pixbuf++= *data++;
}
}
else
{
for(row=rows-1; row>=0; row--)
{
if (flipped)
pixbuf = pixels + row*columns*4;
else
pixbuf = pixels + ((rows-1)-row)*columns*4;
for(column=0; column<columns; column++)
{
*pixbuf++= pal[*data*3+2];
*pixbuf++= pal[*data*3+1];
*pixbuf++= pal[*data*3+0];
*pixbuf++= 255;
data++;
}
}
}
return pixels;
}
//version 3 now
if (asgrey)
{
for(row=rows-1; row>=0; row--)
{
if (flipped)
pixbuf = pixels + row*columns;
else
pixbuf = pixels + ((rows-1)-row)*columns;
pixbuf = pixels + row*columns;
for(column=0; column<columns; column++)
*pixbuf++= *data++;
}
}
else
{
for(row=rows-1; row>=0; row--)
{
if (flipped)
pixbuf = pixels + row*columns*4;
else
pixbuf = pixels + ((rows-1)-row)*columns*4;
for(column=0; column<columns; column++)
{
*pixbuf++= *data;
*pixbuf++= *data;
*pixbuf++= *data;
*pixbuf++= 255;
data++;
}
}
}
return pixels;
}
//remember to free it
qbyte *ReadTargaFile(qbyte *buf, int length, int *width, int *height, qboolean *hasalpha, int asgrey)
{
//tga files sadly lack a true magic header thing.
unsigned char *data;
qboolean flipped;
tgaheader_t tgaheader; //things are misaligned, so no pointer.
if (length < 18 || buf[1] > 1 || (buf[16] != 8 && buf[16] != 16 && buf[16] != 24 && buf[16] != 32))
return NULL; //BUMMER!
tgaheader.id_len = buf[0];
tgaheader.cm_type = buf[1];
tgaheader.version = buf[2];
tgaheader.cm_idx = LittleShort(*(short *)&buf[3]);
tgaheader.cm_len = LittleShort(*(short *)&buf[5]);
tgaheader.cm_size = buf[7];
tgaheader.originx = LittleShort(*(short *)&buf[8]);
tgaheader.originy = LittleShort(*(short *)&buf[10]);
tgaheader.width = LittleShort(*(short *)&buf[12]);
tgaheader.height = LittleShort(*(short *)&buf[14]);
tgaheader.bpp = buf[16];
tgaheader.attribs = buf[17];
switch(tgaheader.version)
{
case 0: //No image data included.
return NULL; //not really valid for us. reject it after all
case 1: //Uncompressed, color-mapped images.
case 2: //Uncompressed, RGB images.
case 3: //Uncompressed, black and white images.
case 9: //Runlength encoded color-mapped images.
case 10: //Runlength encoded RGB images.
case 11: //Compressed, black and white images.
case 32: //Compressed color-mapped data, using Huffman, Delta, and runlength encoding.
case 33: //Compressed color-mapped data, using Huffman, Delta, and runlength encoding. 4-pass quadtree-type process.
break;
default:
return NULL;
}
//validate the size to some sanity limit.
if ((unsigned short)tgaheader.width > 8192 || (unsigned short)tgaheader.height > 8192)
return NULL;
flipped = !((tgaheader.attribs & 0x20) >> 5);
#ifndef NPFTE
if (r_dodgytgafiles.value)
flipped = true;
#endif
data=buf+18;
data += tgaheader.id_len;
*width = tgaheader.width;
*height = tgaheader.height;
if (asgrey == 2) //grey only, load as 8 bit..
{
if (!(tgaheader.version == 1) && !(tgaheader.version == 3))
return NULL;
}
if (tgaheader.version == 1 || tgaheader.version == 3)
{
return ReadGreyTargaFile(data, length, &tgaheader, asgrey);
}
else if (tgaheader.version == 10 || tgaheader.version == 9 || tgaheader.version == 11)
{
//9:paletted
//10:bgr(a)
//11:greyscale
#undef getc
#define getc(x) *data++
unsigned int row, rows=tgaheader.height, column, columns=tgaheader.width, packetHeader, packetSize, j;
qbyte *pixbuf, *targa_rgba=BZ_Malloc(rows*columns*(asgrey?1:4)), *inrow;
qbyte blue, red, green, alphabyte;
byte_vec4_t palette[256];
if (tgaheader.version == 9)
{
for (row = 0; row < 256; row++)
{
palette[row][0] = row;
palette[row][1] = row;
palette[row][2] = row;
palette[row][3] = 255;
}
if (tgaheader.bpp != 8)
return NULL;
}
if (tgaheader.version == 10)
{
if (tgaheader.bpp == 8)
return NULL;
*hasalpha = (tgaheader.bpp==32);
}
if (tgaheader.version == 11)
{
for (row = 0; row < 256; row++)
{
palette[row][0] = row;
palette[row][1] = row;
palette[row][2] = row;
palette[row][3] = 255;
}
if (tgaheader.bpp != 8)
return NULL;
}
if (tgaheader.cm_type)
{
switch(tgaheader.cm_size)
{
case 24:
for (row = 0; row < tgaheader.cm_len; row++)
{
palette[row][0] = *data++;
palette[row][1] = *data++;
palette[row][2] = *data++;
palette[row][3] = 255;
}
break;
case 32:
for (row = 0; row < tgaheader.cm_len; row++)
{
palette[row][0] = *data++;
palette[row][1] = *data++;
palette[row][2] = *data++;
palette[row][3] = *data++;
}
*hasalpha = true;
break;
}
}
for(row=rows; row-->0; )
{
if (flipped)
pixbuf = targa_rgba + row*columns*(asgrey?1:4);
else
pixbuf = targa_rgba + ((rows-1)-row)*columns*(asgrey?1:4);
for(column=0; column<columns; )
{
packetHeader=*data++;
packetSize = 1 + (packetHeader & 0x7f);
if (packetHeader & 0x80)
{ // run-length packet
switch (tgaheader.bpp)
{
case 8: //we made sure this was version 11
blue = palette[*data][0];
green = palette[*data][1];
red = palette[*data][2];
alphabyte = palette[*data][3];
data++;
break;
case 16:
inrow = data;
data+=2;
red = ((inrow[1] & 0x7c)>>2) *8; //red
green = (((inrow[1] & 0x03)<<3) + ((inrow[0] & 0xe0)>>5))*8; //green
blue = (inrow[0] & 0x1f)*8; //blue
alphabyte = (int)(inrow[1]&0x80)*2-1; //alpha?
break;
case 24:
blue = *data++;
green = *data++;
red = *data++;
alphabyte = 255;
break;
case 32:
blue = *data++;
green = *data++;
red = *data++;
alphabyte = *data++;
break;
default:
blue = 127;
green = 127;
red = 127;
alphabyte = 127;
break;
}
if (!asgrey) //keep colours
{
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;
if (flipped)
pixbuf = targa_rgba + row*columns*4;
else
pixbuf = targa_rgba + ((rows-1)-row)*columns*4;
}
}
}
else //convert to greyscale
{
for(j=0;j<packetSize;j++)
{
*pixbuf++ = red*NTSC_RED + green*NTSC_GREEN + blue*NTSC_BLUE;
column++;
if (column==columns)
{ // run spans across rows
column=0;
if (row>0)
row--;
else
goto breakOut;
if (flipped)
pixbuf = targa_rgba + row*columns*1;
else
pixbuf = targa_rgba + ((rows-1)-row)*columns*1;
}
}
}
}
else
{ // non run-length packet
if (!asgrey) //keep colours
{
for(j=0;j<packetSize;j++)
{
switch (tgaheader.bpp)
{
case 8:
blue = palette[*data][0];
green = palette[*data][1];
red = palette[*data][2];
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = palette[*data][3];
data++;
break;
case 16:
inrow = data;
data+=2;
red = ((inrow[1] & 0x7c)>>2) *8; //red
green = (((inrow[1] & 0x03)<<3) + ((inrow[0] & 0xe0)>>5))*8; //green
blue = (inrow[0] & 0x1f)*8; //blue
alphabyte = (int)(inrow[1]&0x80)*2-1; //alpha?
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alphabyte;
break;
case 24:
blue = *data++;
green = *data++;
red = *data++;
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = 255;
break;
case 32:
blue = *data++;
green = *data++;
red = *data++;
alphabyte = *data++;
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alphabyte;
break;
default:
blue = 127;
green = 127;
red = 127;
alphabyte = 127;
break;
}
column++;
if (column==columns)
{ // pixel packet run spans across rows
column=0;
if (row>0)
row--;
else
goto breakOut;
if (flipped)
pixbuf = targa_rgba + row*columns*4;
else
pixbuf = targa_rgba + ((rows-1)-row)*columns*4;
}
}
}
else //convert to grey
{
for(j=0;j<packetSize;j++)
{
switch (tgaheader.bpp)
{
case 8:
blue = palette[*data][0];
green = palette[*data][1];
red = palette[*data][2];
*pixbuf++ = (blue + green + red)/3;
data++;
break;
case 16:
inrow = data;
data+=2;
red = ((inrow[1] & 0x7c)>>2) *8; //red
green = (((inrow[1] & 0x03)<<3) + ((inrow[0] & 0xe0)>>5))*8; //green
blue = (inrow[0] & 0x1f)*8; //blue
alphabyte = (int)(inrow[1]&0x80)*2-1; //alpha?
*pixbuf++ = red*NTSC_RED + green*NTSC_GREEN + blue*NTSC_BLUE;
break;
case 24:
blue = *data++;
green = *data++;
red = *data++;
*pixbuf++ = red*NTSC_RED + green*NTSC_GREEN + blue*NTSC_BLUE;
break;
case 32:
blue = *data++;
green = *data++;
red = *data++;
alphabyte = *data++;
*pixbuf++ = red*NTSC_RED + green*NTSC_GREEN + blue*NTSC_BLUE;
break;
default:
blue = 127;
green = 127;
red = 127;
alphabyte = 127;
break;
}
column++;
if (column==columns)
{ // pixel packet run spans across rows
column=0;
if (row>0)
row--;
else
goto breakOut;
if (flipped)
pixbuf = targa_rgba + row*columns*1;
else
pixbuf = targa_rgba + ((rows-1)-row)*columns*1;
}
}
}
}
}
}
breakOut:;
return targa_rgba;
}
else if (tgaheader.version == 2)
{
qbyte *initbuf=BZ_Malloc(tgaheader.height*tgaheader.width* (asgrey?1:4));
qbyte *inrow, *outrow;
int x, y, mul;
qbyte blue, red, green;
if (tgaheader.bpp == 8)
return NULL;
mul = tgaheader.bpp/8;
*hasalpha = mul==4;
//flip +convert to 32 bit
if (asgrey)
outrow = &initbuf[(int)(0)*tgaheader.width];
else
outrow = &initbuf[(int)(0)*tgaheader.width*mul];
for (y = 0; y < tgaheader.height; y+=1)
{
if (flipped)
inrow = &data[(int)(tgaheader.height-y-1)*tgaheader.width*mul];
else
inrow = &data[(int)(y)*tgaheader.width*mul];
if (!asgrey)
{
switch(mul)
{
case 2:
for (x = 0; x < tgaheader.width; x+=1)
{
*outrow++ = ((inrow[1] & 0x7c)>>2) *8; //red
*outrow++ = (((inrow[1] & 0x03)<<3) + ((inrow[0] & 0xe0)>>5))*8; //green
*outrow++ = (inrow[0] & 0x1f)*8; //blue
*outrow++ = (int)(inrow[1]&0x80)*2-1; //alpha?
inrow+=2;
}
break;
case 3:
for (x = 0; x < tgaheader.width; x+=1)
{
*outrow++ = inrow[2];
*outrow++ = inrow[1];
*outrow++ = inrow[0];
*outrow++ = 255;
inrow+=3;
}
break;
case 4:
for (x = 0; x < tgaheader.width; x+=1)
{
*outrow++ = inrow[2];
*outrow++ = inrow[1];
*outrow++ = inrow[0];
*outrow++ = inrow[3];
inrow+=4;
}
break;
}
}
else
{
switch(mul)
{
case 2:
for (x = 0; x < tgaheader.width; x+=1)
{
red = ((inrow[1] & 0x7c)>>2) *8; //red
green = (((inrow[1] & 0x03)<<3) + ((inrow[0] & 0xe0)>>5))*8; //green
blue = (inrow[0] & 0x1f)*8; //blue
// alphabyte = (int)(inrow[1]&0x80)*2-1; //alpha?
*outrow++ = red*NTSC_RED + green*NTSC_GREEN + blue*NTSC_BLUE;
inrow+=2;
}
break;
case 3:
for (x = 0; x < tgaheader.width; x+=1)
{
red = inrow[2];
green = inrow[1];
blue = inrow[0];
*outrow++ = red*NTSC_RED + green*NTSC_GREEN + blue*NTSC_BLUE;
inrow+=3;
}
break;
case 4:
for (x = 0; x < tgaheader.width; x+=1)
{
red = inrow[2];
green = inrow[1];
blue = inrow[0];
*outrow++ = red*NTSC_RED + green*NTSC_GREEN + blue*NTSC_BLUE;
inrow+=4;
}
break;
}
}
}
return initbuf;
}
else
Con_Printf("TGA: Unsupported version\n");
return NULL;
}
#ifdef AVAIL_PNGLIB
#ifndef AVAIL_ZLIB
#error PNGLIB requires ZLIB
#endif
#undef channels
#ifndef PNG_SUCKS_WITH_SETJMP
#if defined(MINGW)
#include "./mingw-libs/png.h"
#elif defined(_WIN32)
#include "png.h"
#else
#include <png.h>
#endif
#endif
#ifdef DYNAMIC_LIBPNG
#define PSTATIC(n)
static dllhandle_t *libpng_handle;
#define LIBPNG_LOADED() (libpng_handle != NULL)
#else
#define LIBPNG_LOADED() 1
#define PSTATIC(n) = &n
#ifdef _MSC_VER
#ifdef _WIN64
#pragma comment(lib, MSVCLIBSPATH "libpng64.lib")
#else
#pragma comment(lib, MSVCLIBSPATH "libpng.lib")
#endif
#endif
#endif
#ifndef PNG_NORETURN
#define PNG_NORETURN
#endif
#ifndef PNG_ALLOCATED
#define PNG_ALLOCATED
#endif
#if PNG_LIBPNG_VER < 10500
#define png_const_infop png_infop
#define png_const_structp png_structp
#define png_const_bytep png_bytep
#endif
#if PNG_LIBPNG_VER < 10600
#define png_const_inforp png_const_infop
#endif
void (PNGAPI *qpng_error) PNGARG((png_structp png_ptr, png_const_charp error_message)) PSTATIC(png_error);
void (PNGAPI *qpng_read_end) PNGARG((png_structp png_ptr, png_infop info_ptr)) PSTATIC(png_read_end);
void (PNGAPI *qpng_read_image) PNGARG((png_structp png_ptr, png_bytepp image)) PSTATIC(png_read_image);
png_byte (PNGAPI *qpng_get_bit_depth) PNGARG((png_const_structp png_ptr, png_const_inforp info_ptr)) PSTATIC(png_get_bit_depth);
png_byte (PNGAPI *qpng_get_channels) PNGARG((png_const_structp png_ptr, png_const_inforp info_ptr)) PSTATIC(png_get_channels);
png_size_t (PNGAPI *qpng_get_rowbytes) PNGARG((png_const_structp png_ptr, png_const_inforp info_ptr)) PSTATIC(png_get_rowbytes);
void (PNGAPI *qpng_read_update_info) PNGARG((png_structp png_ptr, png_infop info_ptr)) PSTATIC(png_read_update_info);
void (PNGAPI *qpng_set_strip_16) PNGARG((png_structp png_ptr)) PSTATIC(png_set_strip_16);
void (PNGAPI *qpng_set_expand) PNGARG((png_structp png_ptr)) PSTATIC(png_set_expand);
void (PNGAPI *qpng_set_gray_to_rgb) PNGARG((png_structp png_ptr)) PSTATIC(png_set_gray_to_rgb);
void (PNGAPI *qpng_set_tRNS_to_alpha) PNGARG((png_structp png_ptr)) PSTATIC(png_set_tRNS_to_alpha);
png_uint_32 (PNGAPI *qpng_get_valid) PNGARG((png_const_structp png_ptr, png_const_infop info_ptr, png_uint_32 flag)) PSTATIC(png_get_valid);
#if PNG_LIBPNG_VER > 10400
void (PNGAPI *qpng_set_expand_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)) PSTATIC(png_set_expand_gray_1_2_4_to_8);
#else
void (PNGAPI *qpng_set_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)) PSTATIC(png_set_gray_1_2_4_to_8);
#endif
void (PNGAPI *qpng_set_filler) PNGARG((png_structp png_ptr, png_uint_32 filler, int flags)) PSTATIC(png_set_filler);
void (PNGAPI *qpng_set_palette_to_rgb) PNGARG((png_structp png_ptr)) PSTATIC(png_set_palette_to_rgb);
png_uint_32 (PNGAPI *qpng_get_IHDR) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 *width, png_uint_32 *height,
int *bit_depth, int *color_type, int *interlace_method, int *compression_method, int *filter_method)) PSTATIC(png_get_IHDR);
void (PNGAPI *qpng_read_info) PNGARG((png_structp png_ptr, png_infop info_ptr)) PSTATIC(png_read_info);
void (PNGAPI *qpng_set_sig_bytes) PNGARG((png_structp png_ptr, int num_bytes)) PSTATIC(png_set_sig_bytes);
void (PNGAPI *qpng_set_read_fn) PNGARG((png_structp png_ptr, png_voidp io_ptr, png_rw_ptr read_data_fn)) PSTATIC(png_set_read_fn);
void (PNGAPI *qpng_destroy_read_struct) PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)) PSTATIC(png_destroy_read_struct);
png_infop (PNGAPI *qpng_create_info_struct) PNGARG((png_structp png_ptr)) PSTATIC(png_create_info_struct);
png_structp (PNGAPI *qpng_create_read_struct) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn)) PSTATIC(png_create_read_struct);
int (PNGAPI *qpng_sig_cmp) PNGARG((png_const_bytep sig, png_size_t start, png_size_t num_to_check)) PSTATIC(png_sig_cmp);
void (PNGAPI *qpng_write_end) PNGARG((png_structp png_ptr, png_infop info_ptr)) PSTATIC(png_write_end);
void (PNGAPI *qpng_write_image) PNGARG((png_structp png_ptr, png_bytepp image)) PSTATIC(png_write_image);
void (PNGAPI *qpng_write_info) PNGARG((png_structp png_ptr, png_infop info_ptr)) PSTATIC(png_write_info);
void (PNGAPI *qpng_set_IHDR) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 width, png_uint_32 height,
int bit_depth, int color_type, int interlace_method, int compression_method, int filter_method)) PSTATIC(png_set_IHDR);
void (PNGAPI *qpng_set_compression_level) PNGARG((png_structp png_ptr, int level)) PSTATIC(png_set_compression_level);
void (PNGAPI *qpng_init_io) PNGARG((png_structp png_ptr, png_FILE_p fp)) PSTATIC(png_init_io);
png_voidp (PNGAPI *qpng_get_io_ptr) PNGARG((png_structp png_ptr)) PSTATIC(png_get_io_ptr);
void (PNGAPI *qpng_destroy_write_struct) PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)) PSTATIC(png_destroy_write_struct);
png_structp (PNGAPI *qpng_create_write_struct) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn)) PSTATIC(png_create_write_struct);
png_voidp (PNGAPI *qpng_get_error_ptr) PNGARG((png_structp png_ptr)) PSTATIC(png_get_error_ptr);
qboolean LibPNG_Init(void)
{
#ifdef DYNAMIC_LIBPNG
static dllfunction_t pngfuncs[] =
{
{(void **) &qpng_error, "png_error"},
{(void **) &qpng_read_end, "png_read_end"},
{(void **) &qpng_read_image, "png_read_image"},
{(void **) &qpng_get_bit_depth, "png_get_bit_depth"},
{(void **) &qpng_get_channels, "png_get_channels"},
{(void **) &qpng_get_rowbytes, "png_get_rowbytes"},
{(void **) &qpng_read_update_info, "png_read_update_info"},
{(void **) &qpng_set_strip_16, "png_set_strip_16"},
{(void **) &qpng_set_expand, "png_set_expand"},
{(void **) &qpng_set_gray_to_rgb, "png_set_gray_to_rgb"},
{(void **) &qpng_set_tRNS_to_alpha, "png_set_tRNS_to_alpha"},
{(void **) &qpng_get_valid, "png_get_valid"},
#if PNG_LIBPNG_VER > 10400
{(void **) &qpng_set_expand_gray_1_2_4_to_8, "png_set_expand_gray_1_2_4_to_8"},
#else
{(void **) &qpng_set_gray_1_2_4_to_8, "png_set_gray_1_2_4_to_8"},
#endif
{(void **) &qpng_set_filler, "png_set_filler"},
{(void **) &qpng_set_palette_to_rgb, "png_set_palette_to_rgb"},
{(void **) &qpng_get_IHDR, "png_get_IHDR"},
{(void **) &qpng_read_info, "png_read_info"},
{(void **) &qpng_set_sig_bytes, "png_set_sig_bytes"},
{(void **) &qpng_set_read_fn, "png_set_read_fn"},
{(void **) &qpng_destroy_read_struct, "png_destroy_read_struct"},
{(void **) &qpng_create_info_struct, "png_create_info_struct"},
{(void **) &qpng_create_read_struct, "png_create_read_struct"},
{(void **) &qpng_sig_cmp, "png_sig_cmp"},
{(void **) &qpng_write_end, "png_write_end"},
{(void **) &qpng_write_image, "png_write_image"},
{(void **) &qpng_write_info, "png_write_info"},
{(void **) &qpng_set_IHDR, "png_set_IHDR"},
{(void **) &qpng_set_compression_level, "png_set_compression_level"},
{(void **) &qpng_init_io, "png_init_io"},
{(void **) &qpng_destroy_write_struct, "png_destroy_write_struct"},
{(void **) &qpng_create_write_struct, "png_create_write_struct"},
{(void **) &qpng_get_error_ptr, "png_get_error_ptr"},
{NULL, NULL}
};
static qboolean tried;
if (!tried)
{
tried = true;
if (!LIBPNG_LOADED())
{
char *libname;
#ifdef _WIN32
libname = va("libpng%i", PNG_LIBPNG_VER_DLLNUM);
#else
if (PNG_LIBPNG_VER_SONUM == 0)
libname = "libpng.so";
else
libname = va("libpng.so.%i", PNG_LIBPNG_VER_SONUM);
#endif
libpng_handle = Sys_LoadLibrary(libname, pngfuncs);
if (!libpng_handle)
Con_Printf("Unable to load %s\n", libname);
}
// if (!LIBPNG_LOADED())
// libpng_handle = Sys_LoadLibrary("libpng", pngfuncs);
}
#endif
return LIBPNG_LOADED();
}
typedef struct {
char *data;
int readposition;
int filelen;
} pngreadinfo_t;
static void VARGS readpngdata(png_structp png_ptr,png_bytep data,png_size_t len)
{
pngreadinfo_t *ri = (pngreadinfo_t*)qpng_get_io_ptr(png_ptr);
if (ri->readposition+len > ri->filelen)
{
qpng_error(png_ptr, "unexpected eof");
return;
}
memcpy(data, &ri->data[ri->readposition], len);
ri->readposition+=len;
}
struct pngerr
{
const char *fname;
jmp_buf jbuf;
};
static void VARGS png_onerror(png_structp png_ptr, png_const_charp error_msg)
{
struct pngerr *err = qpng_get_error_ptr(png_ptr);
Con_Printf("libpng %s: %s", err->fname, error_msg);
longjmp(err->jbuf, 1);
abort();
}
static void VARGS png_onwarning(png_structp png_ptr, png_const_charp warning_msg)
{
struct pngerr *err = qpng_get_error_ptr(png_ptr);
Con_Printf("libpng %s: %s\n", err->fname, warning_msg);
}
qbyte *ReadPNGFile(qbyte *buf, int length, int *width, int *height, const char *fname)
{
qbyte header[8], **rowpointers = NULL, *data = NULL;
png_structp png;
png_infop pnginfo;
int y, bitdepth, colortype, interlace, compression, filter, bytesperpixel;
unsigned long rowbytes;
pngreadinfo_t ri;
png_uint_32 pngwidth, pngheight;
struct pngerr errctx;
if (!LibPNG_Init())
return NULL;
memcpy(header, buf, 8);
errctx.fname = fname;
if (setjmp(errctx.jbuf))
{
error:
if (data)
BZ_Free(data);
if (rowpointers)
BZ_Free(rowpointers);
qpng_destroy_read_struct(&png, &pnginfo, NULL);
return NULL;
}
if (qpng_sig_cmp(header, 0, 8))
{
return NULL;
}
if (!(png = qpng_create_read_struct(PNG_LIBPNG_VER_STRING, &errctx, png_onerror, png_onwarning)))
{
return NULL;
}
if (!(pnginfo = qpng_create_info_struct(png)))
{
qpng_destroy_read_struct(&png, &pnginfo, NULL);
return NULL;
}
ri.data=buf;
ri.readposition=8;
ri.filelen=length;
qpng_set_read_fn(png, &ri, readpngdata);
qpng_set_sig_bytes(png, 8);
qpng_read_info(png, pnginfo);
qpng_get_IHDR(png, pnginfo, &pngwidth, &pngheight, &bitdepth, &colortype, &interlace, &compression, &filter);
*width = pngwidth;
*height = pngheight;
if (colortype == PNG_COLOR_TYPE_PALETTE)
{
qpng_set_palette_to_rgb(png);
qpng_set_filler(png, 255, PNG_FILLER_AFTER);
}
if (colortype == PNG_COLOR_TYPE_GRAY && bitdepth < 8)
{
#if PNG_LIBPNG_VER > 10400
qpng_set_expand_gray_1_2_4_to_8(png);
#else
qpng_set_gray_1_2_4_to_8(png);
#endif
}
if (qpng_get_valid( png, pnginfo, PNG_INFO_tRNS))
qpng_set_tRNS_to_alpha(png);
if (bitdepth >= 8 && colortype == PNG_COLOR_TYPE_RGB)
qpng_set_filler(png, 255, PNG_FILLER_AFTER);
if (colortype == PNG_COLOR_TYPE_GRAY || colortype == PNG_COLOR_TYPE_GRAY_ALPHA)
{
qpng_set_gray_to_rgb( png );
qpng_set_filler(png, 255, PNG_FILLER_AFTER);
}
if (bitdepth < 8)
qpng_set_expand (png);
else if (bitdepth == 16)
qpng_set_strip_16(png);
qpng_read_update_info(png, pnginfo);
rowbytes = qpng_get_rowbytes(png, pnginfo);
bytesperpixel = qpng_get_channels(png, pnginfo);
bitdepth = qpng_get_bit_depth(png, pnginfo);
if (bitdepth != 8 || bytesperpixel != 4)
{
Con_Printf ("Bad PNG color depth and/or bpp (%s)\n", fname);
qpng_destroy_read_struct(&png, &pnginfo, NULL);
return NULL;
}
data = BZF_Malloc(*height * rowbytes);
rowpointers = BZF_Malloc(*height * sizeof(*rowpointers));
if (!data || !rowpointers)
goto error;
for (y = 0; y < *height; y++)
rowpointers[y] = data + y * rowbytes;
qpng_read_image(png, rowpointers);
qpng_read_end(png, NULL);
qpng_destroy_read_struct(&png, &pnginfo, NULL);
BZ_Free(rowpointers);
return data;
}
#ifndef NPFTE
int Image_WritePNG (char *filename, int compression, qbyte *pixels, int width, int height)
{
char name[MAX_OSPATH];
int i;
FILE *fp;
png_structp png_ptr;
png_infop info_ptr;
png_byte **row_pointers;
struct pngerr errctx;
if (!FS_NativePath(filename, FS_GAMEONLY, name, sizeof(name)))
return false;
if (!LibPNG_Init())
return false;
if (!(fp = fopen (name, "wb")))
{
FS_CreatePath (filename, FS_GAMEONLY);
if (!(fp = fopen (name, "wb")))
return false;
}
errctx.fname = filename;
if (setjmp(errctx.jbuf))
{
err:
qpng_destroy_write_struct(&png_ptr, &info_ptr);
fclose(fp);
return false;
}
if (!(png_ptr = qpng_create_write_struct(PNG_LIBPNG_VER_STRING, &errctx, png_onerror, png_onwarning)))
{
fclose(fp);
return false;
}
if (!(info_ptr = qpng_create_info_struct(png_ptr)))
{
qpng_destroy_write_struct(&png_ptr, (png_infopp) NULL);
fclose(fp);
return false;
}
qpng_init_io(png_ptr, fp);
compression = bound(0, compression, 100);
// had to add these when I migrated from libpng 1.4.x to 1.5.x
#ifndef Z_NO_COMPRESSION
#define Z_NO_COMPRESSION 0
#endif
#ifndef Z_BEST_COMPRESSION
#define Z_BEST_COMPRESSION 9
#endif
qpng_set_compression_level(png_ptr, Z_NO_COMPRESSION + (compression*(Z_BEST_COMPRESSION-Z_NO_COMPRESSION))/100);
qpng_set_IHDR(png_ptr, info_ptr, width, height, 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
qpng_write_info(png_ptr, info_ptr);
row_pointers = BZ_Malloc (sizeof(png_byte *) * height);
if (!row_pointers)
goto err;
for (i = 0; i < height; i++)
row_pointers[height - i - 1] = pixels + i * width * 3;
qpng_write_image(png_ptr, row_pointers);
qpng_write_end(png_ptr, info_ptr);
BZ_Free(row_pointers);
qpng_destroy_write_struct(&png_ptr, &info_ptr);
fclose(fp);
return true;
}
#endif
#endif
#ifdef AVAIL_JPEGLIB
#define XMD_H //fix for mingw
#if defined(MINGW)
#define JPEG_API VARGS
#include "./mingw-libs/jpeglib.h"
#include "./mingw-libs/jerror.h"
#elif defined(_WIN32)
#define JPEG_API VARGS
#include "jpeglib.h"
#include "jerror.h"
#else
// #include <jinclude.h>
#include <jpeglib.h>
#include <jerror.h>
#endif
#ifdef DYNAMIC_LIBJPEG
#define JSTATIC(n)
static dllhandle_t *libjpeg_handle;
#define LIBJPEG_LOADED() (libjpeg_handle != NULL)
#else
#ifdef _MSC_VER
#ifdef _WIN64
#pragma comment(lib, MSVCLIBSPATH "libjpeg64.lib")
#else
#pragma comment(lib, MSVCLIBSPATH "jpeg.lib")
#endif
#endif
#define JSTATIC(n) = &n
#define LIBJPEG_LOADED() (1)
#endif
#ifndef JPEG_FALSE
#define JPEG_boolean boolean
#endif
#define qjpeg_create_compress(cinfo) \
qjpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \
(size_t) sizeof(struct jpeg_compress_struct))
#define qjpeg_create_decompress(cinfo) \
qjpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \
(size_t) sizeof(struct jpeg_decompress_struct))
#ifdef DYNAMIC_LIBJPEG
boolean (VARGS *qjpeg_resync_to_restart) JPP((j_decompress_ptr cinfo, int desired)) JSTATIC(jpeg_resync_to_restart);
boolean (VARGS *qjpeg_finish_decompress) JPP((j_decompress_ptr cinfo)) JSTATIC(jpeg_finish_decompress);
JDIMENSION (VARGS *qjpeg_read_scanlines) JPP((j_decompress_ptr cinfo, JSAMPARRAY scanlines, JDIMENSION max_lines)) JSTATIC(jpeg_read_scanlines);
boolean (VARGS *qjpeg_start_decompress) JPP((j_decompress_ptr cinfo)) JSTATIC(jpeg_start_decompress);
int (VARGS *qjpeg_read_header) JPP((j_decompress_ptr cinfo, boolean require_image)) JSTATIC(jpeg_read_header);
void (VARGS *qjpeg_CreateDecompress) JPP((j_decompress_ptr cinfo, int version, size_t structsize)) JSTATIC(jpeg_CreateDecompress);
void (VARGS *qjpeg_destroy_decompress) JPP((j_decompress_ptr cinfo)) JSTATIC(jpeg_destroy_decompress);
struct jpeg_error_mgr * (VARGS *qjpeg_std_error) JPP((struct jpeg_error_mgr * err)) JSTATIC(jpeg_std_error);
void (VARGS *qjpeg_finish_compress) JPP((j_compress_ptr cinfo)) JSTATIC(jpeg_finish_compress);
JDIMENSION (VARGS *qjpeg_write_scanlines) JPP((j_compress_ptr cinfo, JSAMPARRAY scanlines, JDIMENSION num_lines)) JSTATIC(jpeg_write_scanlines);
void (VARGS *qjpeg_start_compress) JPP((j_compress_ptr cinfo, boolean write_all_tables)) JSTATIC(jpeg_start_compress);
void (VARGS *qjpeg_set_quality) JPP((j_compress_ptr cinfo, int quality, boolean force_baseline)) JSTATIC(jpeg_set_quality);
void (VARGS *qjpeg_set_defaults) JPP((j_compress_ptr cinfo)) JSTATIC(jpeg_set_defaults);
void (VARGS *qjpeg_CreateCompress) JPP((j_compress_ptr cinfo, int version, size_t structsize)) JSTATIC(jpeg_CreateCompress);
void (VARGS *qjpeg_destroy_compress) JPP((j_compress_ptr cinfo)) JSTATIC(jpeg_destroy_compress);
#endif
qboolean LibJPEG_Init(void)
{
#ifdef DYNAMIC_LIBJPEG
static dllfunction_t jpegfuncs[] =
{
{(void **) &qjpeg_resync_to_restart, "jpeg_resync_to_restart"},
{(void **) &qjpeg_finish_decompress, "jpeg_finish_decompress"},
{(void **) &qjpeg_read_scanlines, "jpeg_read_scanlines"},
{(void **) &qjpeg_start_decompress, "jpeg_start_decompress"},
{(void **) &qjpeg_read_header, "jpeg_read_header"},
{(void **) &qjpeg_CreateDecompress, "jpeg_CreateDecompress"},
{(void **) &qjpeg_destroy_decompress, "jpeg_destroy_decompress"},
{(void **) &qjpeg_std_error, "jpeg_std_error"},
{(void **) &qjpeg_finish_compress, "jpeg_finish_compress"},
{(void **) &qjpeg_write_scanlines, "jpeg_write_scanlines"},
{(void **) &qjpeg_start_compress, "jpeg_start_compress"},
{(void **) &qjpeg_set_quality, "jpeg_set_quality"},
{(void **) &qjpeg_set_defaults, "jpeg_set_defaults"},
{(void **) &qjpeg_CreateCompress, "jpeg_CreateCompress"},
{(void **) &qjpeg_destroy_compress, "jpeg_destroy_compress"},
{NULL, NULL}
};
if (!LIBJPEG_LOADED())
libjpeg_handle = Sys_LoadLibrary("libjpeg", jpegfuncs);
#ifndef _WIN32
if (!LIBJPEG_LOADED())
libjpeg_handle = Sys_LoadLibrary("libjpeg"ARCH_DL_POSTFIX".8", jpegfuncs);
if (!LIBJPEG_LOADED())
libjpeg_handle = Sys_LoadLibrary("libjpeg"ARCH_DL_POSTFIX".62", jpegfuncs);
#endif
#endif
return LIBJPEG_LOADED();
}
/*begin jpeg read*/
struct my_error_mgr {
struct jpeg_error_mgr pub; /* "public" fields */
jmp_buf setjmp_buffer; /* for return to caller */
};
typedef struct my_error_mgr * my_error_ptr;
/*
* Here's the routine that will replace the standard error_exit method:
*/
METHODDEF(void)
my_error_exit (j_common_ptr cinfo)
{
/* cinfo->err really points to a my_error_mgr struct, so coerce pointer */
my_error_ptr myerr = (my_error_ptr) cinfo->err;
/* Always display the message. */
/* We could postpone this until after returning, if we chose. */
(*cinfo->err->output_message) (cinfo);
/* Return control to the setjmp point */
longjmp(myerr->setjmp_buffer, 1);
}
/*
* Sample routine for JPEG decompression. We assume that the source file name
* is passed in. We want to return 1 on success, 0 on error.
*/
/* Expanded data source object for stdio input */
typedef struct {
struct jpeg_source_mgr pub; /* public fields */
qbyte * infile; /* source stream */
int currentpos;
int maxlen;
JOCTET * buffer; /* start of buffer */
JPEG_boolean start_of_file; /* have we gotten any data yet? */
} my_source_mgr;
typedef my_source_mgr * my_src_ptr;
#define INPUT_BUF_SIZE 4096 /* choose an efficiently fread'able size */
METHODDEF(void)
init_source (j_decompress_ptr cinfo)
{
my_src_ptr src = (my_src_ptr) cinfo->src;
src->start_of_file = true;
}
METHODDEF(JPEG_boolean)
fill_input_buffer (j_decompress_ptr cinfo)
{
my_source_mgr *src = (my_source_mgr*) cinfo->src;
size_t nbytes;
nbytes = src->maxlen - src->currentpos;
if (nbytes > INPUT_BUF_SIZE)
nbytes = INPUT_BUF_SIZE;
memcpy(src->buffer, &src->infile[src->currentpos], nbytes);
src->currentpos+=nbytes;
if (nbytes <= 0)
{
if (src->start_of_file) /* Treat empty input file as fatal error */
ERREXIT(cinfo, JERR_INPUT_EMPTY);
WARNMS(cinfo, JWRN_JPEG_EOF);
/* Insert a fake EOI marker */
src->buffer[0] = (JOCTET) 0xFF;
src->buffer[1] = (JOCTET) JPEG_EOI;
nbytes = 2;
}
src->pub.next_input_byte = src->buffer;
src->pub.bytes_in_buffer = nbytes;
src->start_of_file = false;
return true;
}
METHODDEF(void)
skip_input_data (j_decompress_ptr cinfo, long num_bytes)
{
my_source_mgr *src = (my_source_mgr*) cinfo->src;
if (num_bytes > 0) {
while (num_bytes > (long) src->pub.bytes_in_buffer) {
num_bytes -= (long) src->pub.bytes_in_buffer;
(void) fill_input_buffer(cinfo);
}
src->pub.next_input_byte += (size_t) num_bytes;
src->pub.bytes_in_buffer -= (size_t) num_bytes;
}
}
METHODDEF(void)
term_source (j_decompress_ptr cinfo)
{
}
#undef GLOBAL
#define GLOBAL(x) x
GLOBAL(void)
ftejpeg_mem_src (j_decompress_ptr cinfo, qbyte * infile, int maxlen)
{
my_source_mgr *src;
if (cinfo->src == NULL) { /* first time for this JPEG object? */
cinfo->src = (struct jpeg_source_mgr *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
sizeof(my_source_mgr));
src = (my_source_mgr*) cinfo->src;
src->buffer = (JOCTET *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
INPUT_BUF_SIZE * sizeof(JOCTET));
}
src = (my_source_mgr*) cinfo->src;
src->pub.init_source = init_source;
src->pub.fill_input_buffer = fill_input_buffer;
src->pub.skip_input_data = skip_input_data;
#ifdef DYNAMIC_LIBJPEG
src->pub.resync_to_restart = qjpeg_resync_to_restart; /* use default method */
#else
src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */
#endif
src->pub.term_source = term_source;
src->infile = infile;
src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */
src->pub.next_input_byte = NULL; /* until buffer loaded */
src->currentpos = 0;
src->maxlen = maxlen;
}
qbyte *ReadJPEGFile(qbyte *infile, int length, int *width, int *height)
{
qbyte *mem=NULL, *in, *out;
int i;
/* This struct contains the JPEG decompression parameters and pointers to
* working space (which is allocated as needed by the JPEG library).
*/
struct jpeg_decompress_struct cinfo;
/* We use our private extension JPEG error handler.
* Note that this struct must live as long as the main JPEG parameter
* struct, to avoid dangling-pointer problems.
*/
struct my_error_mgr jerr;
/* More stuff */
JSAMPARRAY buffer; /* Output row buffer */
int size_stride; /* physical row width in output buffer */
memset(&cinfo, 0, sizeof(cinfo));
if (!LIBJPEG_LOADED())
return NULL;
/* Step 1: allocate and initialize JPEG decompression object */
/* We set up the normal JPEG error routines, then override error_exit. */
#ifdef DYNAMIC_LIBJPEG
cinfo.err = qjpeg_std_error(&jerr.pub);
#else
cinfo.err = jpeg_std_error(&jerr.pub);
#endif
jerr.pub.error_exit = my_error_exit;
/* Establish the setjmp return context for my_error_exit to use. */
if (setjmp(jerr.setjmp_buffer))
{
// If we get here, the JPEG code has signaled an error.
badjpeg:
#ifdef DYNAMIC_LIBJPEG
qjpeg_destroy_decompress(&cinfo);
#else
jpeg_destroy_decompress(&cinfo);
#endif
if (mem)
BZ_Free(mem);
return 0;
}
#ifdef DYNAMIC_LIBJPEG
qjpeg_create_decompress(&cinfo);
#else
jpeg_create_decompress(&cinfo);
#endif
ftejpeg_mem_src(&cinfo, infile, length);
#ifdef DYNAMIC_LIBJPEG
(void) qjpeg_read_header(&cinfo, true);
#else
(void) jpeg_read_header(&cinfo, true);
#endif
#ifdef DYNAMIC_LIBJPEG
(void) qjpeg_start_decompress(&cinfo);
#else
(void) jpeg_start_decompress(&cinfo);
#endif
if (cinfo.output_components == 0)
{
#ifdef _DEBUG
Con_Printf("No JPEG Components, not a JPEG.\n");
#endif
goto badjpeg;
}
if (cinfo.output_components!=3 && cinfo.output_components != 1)
{
#ifdef _DEBUG
Con_Printf("Bad number of components in JPEG: '%d', should be '3'.\n",cinfo.output_components);
#endif
goto badjpeg;
}
size_stride = cinfo.output_width * cinfo.output_components;
/* Make a one-row-high sample array that will go away when done with image */
buffer = (*cinfo.mem->alloc_sarray) ((j_common_ptr) &cinfo, JPOOL_IMAGE, size_stride, 1);
out=mem=BZ_Malloc(cinfo.output_height*cinfo.output_width*4);
memset(out, 0, cinfo.output_height*cinfo.output_width*4);
if (cinfo.output_components == 1)
{
while (cinfo.output_scanline < cinfo.output_height)
{
#ifdef DYNAMIC_LIBJPEG
(void) qjpeg_read_scanlines(&cinfo, buffer, 1);
#else
(void) jpeg_read_scanlines(&cinfo, buffer, 1);
#endif
in = buffer[0];
for (i = 0; i < cinfo.output_width; i++)
{//rgb to rgba
*out++ = *in;
*out++ = *in;
*out++ = *in;
*out++ = 255;
in++;
}
}
}
else
{
while (cinfo.output_scanline < cinfo.output_height)
{
#ifdef DYNAMIC_LIBJPEG
(void) qjpeg_read_scanlines(&cinfo, buffer, 1);
#else
(void) jpeg_read_scanlines(&cinfo, buffer, 1);
#endif
in = buffer[0];
for (i = 0; i < cinfo.output_width; i++)
{//rgb to rgba
*out++ = *in++;
*out++ = *in++;
*out++ = *in++;
*out++ = 255;
}
}
}
#ifdef DYNAMIC_LIBJPEG
(void) qjpeg_finish_decompress(&cinfo);
#else
(void) jpeg_finish_decompress(&cinfo);
#endif
#ifdef DYNAMIC_LIBJPEG
qjpeg_destroy_decompress(&cinfo);
#else
jpeg_destroy_decompress(&cinfo);
#endif
*width = cinfo.output_width;
*height = cinfo.output_height;
return mem;
}
/*end read*/
#ifndef NPFTE
/*begin write*/
#define OUTPUT_BUF_SIZE 4096
typedef struct {
struct jpeg_error_mgr pub;
jmp_buf setjmp_buffer;
} jpeg_error_mgr_wrapper;
typedef struct {
struct jpeg_destination_mgr pub;
vfsfile_t *vfs;
JOCTET buffer[OUTPUT_BUF_SIZE]; /* start of buffer */
} my_destination_mgr;
METHODDEF(void) init_destination (j_compress_ptr cinfo)
{
my_destination_mgr *dest = (my_destination_mgr*) cinfo->dest;
dest->pub.next_output_byte = dest->buffer;
dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
}
METHODDEF(JPEG_boolean) empty_output_buffer (j_compress_ptr cinfo)
{
my_destination_mgr *dest = (my_destination_mgr*) cinfo->dest;
VFS_WRITE(dest->vfs, dest->buffer, OUTPUT_BUF_SIZE);
dest->pub.next_output_byte = dest->buffer;
dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
return true;
}
METHODDEF(void) term_destination (j_compress_ptr cinfo)
{
my_destination_mgr *dest = (my_destination_mgr*) cinfo->dest;
VFS_WRITE(dest->vfs, dest->buffer, OUTPUT_BUF_SIZE - dest->pub.free_in_buffer);
dest->pub.next_output_byte = dest->buffer;
dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
}
void ftejpeg_mem_dest (j_compress_ptr cinfo, vfsfile_t *vfs)
{
my_destination_mgr *dest;
if (cinfo->dest == NULL)
{ /* first time for this JPEG object? */
cinfo->dest = (struct jpeg_destination_mgr *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
sizeof(my_destination_mgr));
dest = (my_destination_mgr*) cinfo->dest;
// dest->buffer = (JOCTET *)
// (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
// OUTPUT_BUF_SIZE * sizeof(JOCTET));
}
dest = (my_destination_mgr*) cinfo->dest;
dest->pub.init_destination = init_destination;
dest->pub.empty_output_buffer = empty_output_buffer;
dest->pub.term_destination = term_destination;
dest->pub.free_in_buffer = 0; /* forces fill_input_buffer on first read */
dest->pub.next_output_byte = NULL; /* until buffer loaded */
dest->vfs = vfs;
}
METHODDEF(void) jpeg_error_exit (j_common_ptr cinfo)
{
longjmp(((jpeg_error_mgr_wrapper *) cinfo->err)->setjmp_buffer, 1);
}
qboolean screenshotJPEG(char *filename, int compression, qbyte *screendata, int screenwidth, int screenheight) //input is rgb NOT rgba
{
qbyte *buffer;
vfsfile_t *outfile;
jpeg_error_mgr_wrapper jerr;
struct jpeg_compress_struct cinfo;
JSAMPROW row_pointer[1];
if (!LIBJPEG_LOADED())
return false;
if (!(outfile = FS_OpenVFS(filename, "wb", FS_GAMEONLY)))
{
FS_CreatePath (filename, FS_GAMEONLY);
if (!(outfile = FS_OpenVFS(filename, "wb", FS_GAMEONLY)))
{
Con_Printf("Error opening %s\n", filename);
return false;
}
}
#ifdef DYNAMIC_LIBJPEG
cinfo.err = qjpeg_std_error(&jerr.pub);
#else
cinfo.err = jpeg_std_error(&jerr.pub);
#endif
jerr.pub.error_exit = jpeg_error_exit;
if (setjmp(jerr.setjmp_buffer))
{
#ifdef DYNAMIC_LIBJPEG
qjpeg_destroy_compress(&cinfo);
#else
jpeg_destroy_compress(&cinfo);
#endif
VFS_CLOSE(outfile);
FS_Remove(filename, FS_GAME);
Con_Printf("Failed to create jpeg\n");
return false;
}
#ifdef DYNAMIC_LIBJPEG
qjpeg_create_compress(&cinfo);
#else
jpeg_create_compress(&cinfo);
#endif
buffer = screendata;
ftejpeg_mem_dest(&cinfo, outfile);
cinfo.image_width = screenwidth;
cinfo.image_height = screenheight;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
#ifdef DYNAMIC_LIBJPEG
qjpeg_set_defaults(&cinfo);
#else
jpeg_set_defaults(&cinfo);
#endif
#ifdef DYNAMIC_LIBJPEG
qjpeg_set_quality (&cinfo, bound(0, compression, 100), true);
#else
jpeg_set_quality (&cinfo, bound(0, compression, 100), true);
#endif
#ifdef DYNAMIC_LIBJPEG
qjpeg_start_compress(&cinfo, true);
#else
jpeg_start_compress(&cinfo, true);
#endif
while (cinfo.next_scanline < cinfo.image_height)
{
*row_pointer = &buffer[(cinfo.image_height - cinfo.next_scanline - 1) * cinfo.image_width * 3];
#ifdef DYNAMIC_LIBJPEG
qjpeg_write_scanlines(&cinfo, row_pointer, 1);
#else
jpeg_write_scanlines(&cinfo, row_pointer, 1);
#endif
}
#ifdef DYNAMIC_LIBJPEG
qjpeg_finish_compress(&cinfo);
#else
jpeg_finish_compress(&cinfo);
#endif
VFS_CLOSE(outfile);
#ifdef DYNAMIC_LIBJPEG
qjpeg_destroy_compress(&cinfo);
#else
jpeg_destroy_compress(&cinfo);
#endif
return true;
}
#endif
#endif
#ifndef NPFTE
/*
==============
WritePCXfile
==============
*/
void WritePCXfile (const char *filename, qbyte *data, int width, int height,
int rowbytes, qbyte *palette, qboolean upload) //data is 8bit.
{
int i, j, length;
pcx_t *pcx;
qbyte *pack;
pcx = Hunk_TempAlloc (width*height*2+1000);
if (pcx == NULL)
{
Con_Printf("SCR_ScreenShot_f: not enough memory\n");
return;
}
pcx->manufacturer = 0x0a; // PCX id
pcx->version = 5; // 256 color
pcx->encoding = 1; // uncompressed
pcx->bits_per_pixel = 8; // 256 color
pcx->xmin = 0;
pcx->ymin = 0;
pcx->xmax = LittleShort((short)(width-1));
pcx->ymax = LittleShort((short)(height-1));
pcx->hres = LittleShort((short)width);
pcx->vres = LittleShort((short)height);
Q_memset (pcx->palette,0,sizeof(pcx->palette));
pcx->color_planes = 1; // chunky image
pcx->bytes_per_line = LittleShort((short)width);
pcx->palette_type = LittleShort(2); // not a grey scale
Q_memset (pcx->filler,0,sizeof(pcx->filler));
// pack the image
pack = (qbyte *)(pcx+1);
data += rowbytes * (height - 1);
for (i=0 ; i<height ; i++)
{
for (j=0 ; j<width ; j++)
{
if ( (*data & 0xc0) != 0xc0)
*pack++ = *data++;
else
{
*pack++ = 0xc1;
*pack++ = *data++;
}
}
data += rowbytes - width;
data -= rowbytes * 2;
}
// write the palette
*pack++ = 0x0c; // palette ID qbyte
for (i=0 ; i<768 ; i++)
*pack++ = *palette++;
// write output file
length = pack - (qbyte *)pcx;
if (upload)
CL_StartUpload((void *)pcx, length);
else
COM_WriteFile (filename, pcx, length);
}
#endif
/*
============
LoadPCX
============
*/
qbyte *ReadPCXFile(qbyte *buf, int length, int *width, int *height)
{
pcx_t *pcx;
// pcx_t pcxbuf;
qbyte *palette;
qbyte *pix;
int x, y;
int dataByte, runLength;
int count;
qbyte *data;
qbyte *pcx_rgb;
unsigned short xmin, ymin, swidth, sheight;
//
// parse the PCX file
//
if (length < sizeof(*pcx))
return NULL;
pcx = (pcx_t *)buf;
xmin = LittleShort(pcx->xmin);
ymin = LittleShort(pcx->ymin);
swidth = LittleShort(pcx->xmax)-xmin+1;
sheight = LittleShort(pcx->ymax)-ymin+1;
if (pcx->manufacturer != 0x0a
|| pcx->version != 5
|| pcx->encoding != 1
|| pcx->bits_per_pixel != 8
|| swidth >= 1024
|| sheight >= 1024)
{
return NULL;
}
*width = swidth;
*height = sheight;
#ifndef NPFTE
if (r_dodgypcxfiles.value)
palette = host_basepal;
else
#endif
palette = buf + length-768;
data = (char *)(pcx+1);
count = (swidth) * (sheight);
pcx_rgb = BZ_Malloc( count * 4);
for (y=0 ; y<sheight ; y++)
{
pix = pcx_rgb + 4*y*(swidth);
for (x=0 ; x<swidth ; )
{
dataByte = *data;
data++;
if((dataByte & 0xC0) == 0xC0)
{
runLength = dataByte & 0x3F;
if (x+runLength>swidth)
{
Con_Printf("corrupt pcx\n");
BZ_Free(pcx_rgb);
return NULL;
}
dataByte = *data;
data++;
}
else
runLength = 1;
while(runLength-- > 0)
{
pix[0] = palette[dataByte*3];
pix[1] = palette[dataByte*3+1];
pix[2] = palette[dataByte*3+2];
pix[3] = 255;
if (dataByte == 255)
{
pix[0] = 0; //linear filtering can mean transparent pixel colours are visible. black is a more neutral colour.
pix[1] = 0;
pix[2] = 0;
pix[3] = 0;
}
pix += 4;
x++;
}
}
}
return pcx_rgb;
}
qbyte *ReadPCXData(qbyte *buf, int length, int width, int height, qbyte *result)
{
pcx_t *pcx;
// pcx_t pcxbuf;
// qbyte *palette;
qbyte *pix;
int x, y;
int dataByte, runLength;
// int count;
qbyte *data;
unsigned short xmin, ymin, swidth, sheight;
//
// parse the PCX file
//
pcx = (pcx_t *)buf;
xmin = LittleShort(pcx->xmin);
ymin = LittleShort(pcx->ymin);
swidth = LittleShort(pcx->xmax)-xmin+1;
sheight = LittleShort(pcx->ymax)-ymin+1;
if (pcx->manufacturer != 0x0a
|| pcx->version != 5
|| pcx->encoding != 1
|| pcx->bits_per_pixel != 8)
{
return NULL;
}
if (width != swidth ||
height > sheight)
{
Con_Printf("unsupported pcx size\n");
return NULL; //we can't feed the requester with enough info
}
data = (char *)(pcx+1);
for (y=0 ; y<height ; y++)
{
pix = result + y*swidth;
for (x=0 ; x<swidth ; )
{
dataByte = *data;
data++;
if((dataByte & 0xC0) == 0xC0)
{
runLength = dataByte & 0x3F;
if (x+runLength>swidth)
{
Con_Printf("corrupt pcx\n");
return NULL;
}
dataByte = *data;
data++;
}
else
runLength = 1;
while(runLength-- > 0)
{
*pix++ = dataByte;
x++;
}
}
}
return result;
}
qbyte *ReadPCXPalette(qbyte *buf, int len, qbyte *out)
{
pcx_t *pcx;
//
// parse the PCX file
//
pcx = (pcx_t *)buf;
if (pcx->manufacturer != 0x0a
|| pcx->version != 5
|| pcx->encoding != 1
|| pcx->bits_per_pixel != 8
|| LittleShort(pcx->xmax) >= 1024
|| LittleShort(pcx->ymax) >= 1024)
{
return NULL;
}
memcpy(out, (qbyte *)pcx + len - 768, 768);
return out;
}
typedef struct bmpheader_s
{
/* unsigned short Type;*/
unsigned long Size;
unsigned short Reserved1;
unsigned short Reserved2;
unsigned long OffsetofBMPBits;
unsigned long SizeofBITMAPINFOHEADER;
signed long Width;
signed long Height;
unsigned short Planes;
unsigned short BitCount;
unsigned long Compression;
unsigned long ImageSize;
signed long TargetDeviceXRes;
signed long TargetDeviceYRes;
unsigned long NumofColorIndices;
unsigned long NumofImportantColorIndices;
} bmpheader_t;
qbyte *ReadBMPFile(qbyte *buf, int length, int *width, int *height)
{
unsigned int i;
bmpheader_t h;
qbyte *data;
if (buf[0] != 'B' || buf[1] != 'M')
return NULL;
memcpy(&h, (bmpheader_t *)(buf+2), sizeof(h));
h.Size = LittleLong(h.Size);
h.Reserved1 = LittleShort(h.Reserved1);
h.Reserved2 = LittleShort(h.Reserved2);
h.OffsetofBMPBits = LittleLong(h.OffsetofBMPBits);
h.SizeofBITMAPINFOHEADER = LittleLong(h.SizeofBITMAPINFOHEADER);
h.Width = LittleLong(h.Width);
h.Height = LittleLong(h.Height);
h.Planes = LittleShort(h.Planes);
h.BitCount = LittleShort(h.BitCount);
h.Compression = LittleLong(h.Compression);
h.ImageSize = LittleLong(h.ImageSize);
h.TargetDeviceXRes = LittleLong(h.TargetDeviceXRes);
h.TargetDeviceYRes = LittleLong(h.TargetDeviceYRes);
h.NumofColorIndices = LittleLong(h.NumofColorIndices);
h.NumofImportantColorIndices = LittleLong(h.NumofImportantColorIndices);
if (h.Compression) //probably RLE?
return NULL;
*width = h.Width;
*height = h.Height;
if (h.NumofColorIndices != 0 || h.BitCount == 8) //8 bit
{
int x, y;
unsigned int *data32;
unsigned int pal[256];
if (!h.NumofColorIndices)
h.NumofColorIndices = (int)pow(2, h.BitCount);
if (h.NumofColorIndices>256)
return NULL;
data = buf+2;
data += sizeof(h);
for (i = 0; i < h.NumofColorIndices; i++)
{
pal[i] = data[i*4+0] + (data[i*4+1]<<8) + (data[i*4+2]<<16) + (255/*data[i*4+3]*/<<16);
}
buf += h.OffsetofBMPBits;
data32 = BZ_Malloc(h.Width * h.Height*4);
for (y = 0; y < h.Height; y++)
{
i = (h.Height-1-y) * (h.Width);
for (x = 0; x < h.Width; x++)
{
data32[i] = pal[buf[x]];
i++;
}
buf += h.Width;
}
return (qbyte *)data32;
}
else if (h.BitCount == 4) //4 bit
{
int x, y;
unsigned int *data32;
unsigned int pal[16];
if (!h.NumofColorIndices)
h.NumofColorIndices = (int)pow(2, h.BitCount);
if (h.NumofColorIndices>16)
return NULL;
if (h.Width&1)
return NULL;
data = buf+2;
data += sizeof(h);
for (i = 0; i < h.NumofColorIndices; i++)
{
pal[i] = data[i*4+0] + (data[i*4+1]<<8) + (data[i*4+2]<<16) + (255/*data[i*4+3]*/<<16);
}
buf += h.OffsetofBMPBits;
data32 = BZ_Malloc(h.Width * h.Height*4);
for (y = 0; y < h.Height; y++)
{
i = (h.Height-1-y) * (h.Width);
for (x = 0; x < h.Width/2; x++)
{
data32[i++] = pal[buf[x]>>4];
data32[i++] = pal[buf[x]&15];
}
buf += h.Width>>1;
}
return (qbyte *)data32;
}
else if (h.BitCount == 24) //24 bit... no 16?
{
int x, y;
buf += h.OffsetofBMPBits;
data = BZ_Malloc(h.Width * h.Height*4);
for (y = 0; y < h.Height; y++)
{
i = (h.Height-1-y) * (h.Width);
for (x = 0; x < h.Width; x++)
{
data[i*4+0] = buf[x*3+2];
data[i*4+1] = buf[x*3+1];
data[i*4+2] = buf[x*3+0];
data[i*4+3] = 255;
i++;
}
buf += h.Width*3;
}
return data;
}
else
return NULL;
return NULL;
}
/*void WriteBMPFile(char *filename, qbyte *in, int width, int height)
{
unsigned int i;
bmpheader_t *h;
qbyte *data;
qbyte *out;
out = BZ_Malloc(sizeof(bmpheader_t)+width*3*height);
*(short*)((qbyte *)h-2) = *(short*)"BM";
h->Size = LittleLong(in->Size);
h->Reserved1 = LittleShort(in->Reserved1);
h->Reserved2 = LittleShort(in->Reserved2);
h->OffsetofBMPBits = LittleLong(in->OffsetofBMPBits);
h->SizeofBITMAPINFOHEADER = LittleLong(in->SizeofBITMAPINFOHEADER);
h->Width = LittleLong(in->Width);
h->Height = LittleLong(in->Height);
h->Planes = LittleShort(in->Planes);
h->BitCount = LittleShort(in->BitCount);
h->Compression = LittleLong(in->Compression);
h->ImageSize = LittleLong(in->ImageSize);
h->TargetDeviceXRes = LittleLong(in->TargetDeviceXRes);
h->TargetDeviceYRes = LittleLong(in->TargetDeviceYRes);
h->NumofColorIndices = LittleLong(in->NumofColorIndices);
h->NumofImportantColorIndices = LittleLong(in->NumofImportantColorIndices);
if (h.Compression) //probably RLE?
return NULL;
*width = h.Width;
*height = h.Height;
if (h.NumofColorIndices != 0 || h.BitCount == 8) //8 bit
{
int x, y;
unsigned int *data32;
unsigned int pal[256];
if (!h.NumofColorIndices)
h.NumofColorIndices = (int)pow(2, h.BitCount);
if (h.NumofColorIndices>256)
return NULL;
data = buf+2;
data += sizeof(h);
for (i = 0; i < h.NumofColorIndices; i++)
{
pal[i] = data[i*4+0] + (data[i*4+1]<<8) + (data[i*4+2]<<16) + (255/<<16);
}
buf += h.OffsetofBMPBits;
data32 = BZ_Malloc(h.Width * h.Height*4);
for (y = 0; y < h.Height; y++)
{
i = (h.Height-1-y) * (h.Width);
for (x = 0; x < h.Width; x++)
{
data32[i] = pal[buf[x]];
i++;
}
buf += h.Width;
}
return (qbyte *)data32;
}
else if (h.BitCount == 4) //4 bit
{
int x, y;
unsigned int *data32;
unsigned int pal[16];
if (!h.NumofColorIndices)
h.NumofColorIndices = (int)pow(2, h.BitCount);
if (h.NumofColorIndices>16)
return NULL;
if (h.Width&1)
return NULL;
data = buf+2;
data += sizeof(h);
for (i = 0; i < h.NumofColorIndices; i++)
{
pal[i] = data[i*4+0] + (data[i*4+1]<<8) + (data[i*4+2]<<16) + (255<<16);
}
buf += h.OffsetofBMPBits;
data32 = BZ_Malloc(h.Width * h.Height*4);
for (y = 0; y < h.Height; y++)
{
i = (h.Height-1-y) * (h.Width);
for (x = 0; x < h.Width/2; x++)
{
data32[i++] = pal[buf[x]>>4];
data32[i++] = pal[buf[x]&15];
}
buf += h.Width>>1;
}
return (qbyte *)data32;
}
else if (h.BitCount == 24) //24 bit... no 16?
{
int x, y;
buf += h.OffsetofBMPBits;
data = BZ_Malloc(h.Width * h.Height*4);
for (y = 0; y < h.Height; y++)
{
i = (h.Height-1-y) * (h.Width);
for (x = 0; x < h.Width; x++)
{
data[i*4+0] = buf[x*3+2];
data[i*4+1] = buf[x*3+1];
data[i*4+2] = buf[x*3+0];
data[i*4+3] = 255;
i++;
}
buf += h.Width*3;
}
return data;
}
else
return NULL;
return NULL;
}*/
#ifndef NPFTE
// saturate function, stolen from jitspoe
void SaturateR8G8B8(qbyte *data, int size, float sat)
{
int i;
float r, g, b, v;
if (sat > 1)
{
for(i=0; i < size; i+=3)
{
r = data[i];
g = data[i+1];
b = data[i+2];
v = r * NTSC_RED + g * NTSC_GREEN + b * NTSC_BLUE;
r = v + (r - v) * sat;
g = v + (g - v) * sat;
b = v + (b - v) * sat;
// bounds check
if (r < 0)
r = 0;
else if (r > 255)
r = 255;
if (g < 0)
g = 0;
else if (g > 255)
g = 255;
if (b < 0)
b = 0;
else if (b > 255)
b = 255;
// scale down to avoid overbright lightmaps
v = v / (r * NTSC_RED + g * NTSC_GREEN + b * NTSC_BLUE);
if (v > NTSC_SUM)
v = NTSC_SUM;
else
v *= v;
data[i] = r*v;
data[i+1] = g*v;
data[i+2] = b*v;
}
}
else // avoid bounds check for desaturation
{
if (sat < 0)
sat = 0;
for(i=0; i < size; i+=3)
{
r = data[i];
g = data[i+1];
b = data[i+2];
v = r * NTSC_RED + g * NTSC_GREEN + b * NTSC_BLUE;
data[i] = v + (r - v) * sat;
data[i+1] = v + (g - v) * sat;
data[i+2] = v + (b - v) * sat;
}
}
}
void BoostGamma(qbyte *rgba, int width, int height)
{
#if defined(GLQUAKE)
int i;
extern qbyte gammatable[256];
if (qrenderer != QR_OPENGL)
return;//don't brighten in SW.
for (i=0 ; i<width*height*4 ; i+=4)
{
rgba[i+0] = gammatable[rgba[i+0]];
rgba[i+1] = gammatable[rgba[i+1]];
rgba[i+2] = gammatable[rgba[i+2]];
//and not alpha
}
#endif
}
static void Image_LoadTexture_Failed(void *ctx, void *data, size_t a, size_t b)
{
texid_t tex = ctx;
tex->status = TEX_FAILED;
}
static void Image_LoadTextureMips(void *ctx, void *data, size_t a, size_t b)
{
texid_t tex = ctx;
struct pendingtextureinfo *mips = data;
tex->width = mips->mip[0].width;
tex->height = mips->mip[0].height;
if (rf->IMG_LoadTextureMips(tex, mips))
tex->status = TEX_LOADED;
else
tex->status = TEX_FAILED;
BZ_Free(mips);
}
#ifndef GL_COMPRESSED_RGB_S3TC_DXT1_EXT
#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
#endif
#ifdef IMAGEFMT_DDS
typedef struct {
unsigned int dwSize;
unsigned int dwFlags;
unsigned int dwFourCC;
unsigned int unk[5];
} ddspixelformat;
typedef struct {
unsigned int dwSize;
unsigned int dwFlags;
unsigned int dwHeight;
unsigned int dwWidth;
unsigned int dwPitchOrLinearSize;
unsigned int dwDepth;
unsigned int dwMipMapCount;
unsigned int dwReserved1[11];
ddspixelformat ddpfPixelFormat;
unsigned int ddsCaps[4];
unsigned int dwReserved2;
} ddsheader;
static qboolean Image_ReadDDSFile(texid_t tex, unsigned int flags, char *fname, qbyte *filedata, size_t filesize)
{
int nummips;
int mipnum;
int datasize;
int pad;
unsigned int w, h;
int divsize, blocksize;
struct pendingtextureinfo *mips;
int encoding;
ddsheader fmtheader;
if (*(int*)filedata != *(int*)"DDS ")
return false;
filedata+=4;
memcpy(&fmtheader, filedata+4, sizeof(fmtheader));
if (fmtheader.dwSize != sizeof(fmtheader))
return false; //corrupt/different version
nummips = fmtheader.dwMipMapCount;
if (nummips < 1)
nummips = 1;
if (*(int*)&fmtheader.ddpfPixelFormat.dwFourCC == *(int*)"DXT1")
{
encoding = PTI_S3RGBA1; //alpha or not? Assume yes, and let the drivers decide.
pad = 8;
divsize = 4;
blocksize = 8;
}
else if (*(int*)&fmtheader.ddpfPixelFormat.dwFourCC == *(int*)"DXT2" || *(int*)&fmtheader.ddpfPixelFormat.dwFourCC == *(int*)"DXT3")
{
encoding = PTI_S3RGBA3;
pad = 8;
divsize = 4;
blocksize = 16;
}
else if (*(int*)&fmtheader.ddpfPixelFormat.dwFourCC == *(int*)"DXT4" || *(int*)&fmtheader.ddpfPixelFormat.dwFourCC == *(int*)"DXT5")
{
encoding = PTI_S3RGBA5;
pad = 8;
divsize = 4;
blocksize = 16;
}
else
{
Con_Printf("Unsupported dds fourcc in %s\n", fname);
return false;
}
mips = Z_Malloc(sizeof(*mips));
mips->mipcount = 0;
mips->type = PTI_2D;
mips->extrafree = filedata;
mips->encoding = encoding;
filedata += 4+fmtheader.dwSize;
datasize = fmtheader.dwPitchOrLinearSize;
w = fmtheader.dwWidth;
h = fmtheader.dwHeight;
for (mipnum = 0; mipnum < nummips; mipnum++)
{
if (datasize < pad)
datasize = pad;
datasize = max(divsize, w)/divsize * max(divsize, h)/divsize * blocksize;
mips->mip[mipnum].data = filedata;
mips->mip[mipnum].datasize = datasize;
mips->mip[mipnum].width = w;
mips->mip[mipnum].height = h;
filedata += datasize;
w = (w+1)>>1;
h = (h+1)>>1;
}
mips->mipcount = mipnum;
COM_AddWork(0, Image_LoadTextureMips, tex, mips, 0, 0);
return true;
}
#endif
#ifdef IMAGEFMT_BLP
static qboolean Image_ReadBLPFile(texid_t tex, unsigned int flags, char *fname, qbyte *filedata, size_t filesize)
{
//FIXME: cba with endian.
int miplevel;
int w, h, i;
struct blp_s
{
char blp2[4];
int type;
qbyte encoding;
qbyte alphadepth;
qbyte alphaencoding;
qbyte hasmips;
unsigned int xres;
unsigned int yres;
unsigned int mipoffset[16];
unsigned int mipsize[16];
unsigned int palette[256];
} *blp;
unsigned int *tmpmem = NULL;
unsigned char *in;
unsigned int inlen;
struct pendingtextureinfo *mips;
blp = (void*)filedata;
if (memcmp(blp->blp2, "BLP2", 4) || blp->type != 1)
return false;
mips = Z_Malloc(sizeof(*mips));
mips->mipcount = 0;
mips->type = PTI_2D;
w = LittleLong(blp->xres);
h = LittleLong(blp->yres);
if (blp->encoding == 2)
{
int blocksize;
//s3tc/dxt
switch(blp->alphaencoding)
{
default:
case 0: //dxt1
if (blp->alphadepth)
mips->encoding = PTI_S3RGBA1;
else
mips->encoding = PTI_S3RGB1;
blocksize = 8;
break;
case 1: //dxt2/3
mips->encoding = PTI_S3RGBA3;
blocksize = 16;
break;
case 7: //dxt4/5
mips->encoding = PTI_S3RGBA5;
blocksize = 16;
break;
}
for (miplevel = 0; miplevel < 16; )
{
if (!w && !h) //shrunk to no size
break;
if (!w)
w = 1;
if (!h)
h = 1;
if (!blp->mipoffset[miplevel] || !blp->mipsize[miplevel] || blp->mipoffset[miplevel]+blp->mipsize[miplevel] > filesize) //no data
break;
mips->mip[miplevel].width = w;
mips->mip[miplevel].height = h;
mips->mip[miplevel].data = filedata + LittleLong(blp->mipoffset[miplevel]);
mips->mip[miplevel].datasize = LittleLong(blp->mipsize[miplevel]);
miplevel++;
if (!blp->hasmips || (flags & IF_NOMIPMAP))
break;
w >>= 1;
h >>= 1;
}
mips->mipcount = miplevel;
mips->extrafree = filedata;
}
else
{
mips->encoding = PTI_BGRA8;
for (miplevel = 0; miplevel < 16; )
{
if (!w && !h)
break;
if (!w)
w = 1;
if (!h)
h = 1;
//if we ran out of mips to load, give up.
if (!blp->mipoffset[miplevel] || !blp->mipsize[miplevel] || blp->mipoffset[miplevel]+blp->mipsize[miplevel] > filesize)
{
//if we got at least one mip, cap the mips. might help save some ram? naaah...
//if this is the first mip, well, its completely fucked.
break;
}
in = filedata + LittleLong(blp->mipoffset[miplevel]);
inlen = LittleLong(blp->mipsize[miplevel]);
if (inlen != w*h+((w*h*blp->alphadepth+7)>>3))
{
Con_Printf("%s: mip level %i does not contain the correct amount of data\n", fname, miplevel);
break;
}
mips->mip[miplevel].width = w;
mips->mip[miplevel].height = h;
mips->mip[miplevel].datasize = 4*w*h;
mips->mip[miplevel].data = tmpmem = BZ_Malloc(4*w*h);
mips->mip[miplevel].needfree = true;
//load the rgb data first (8-bit paletted)
for (i = 0; i < w*h; i++)
tmpmem[i] = blp->palette[*in++] | 0xff000000;
//and then change the alpha bits accordingly.
switch(blp->alphadepth)
{
case 0:
//BGRX palette, 8bit
break;
case 1:
//BGRX palette, 8bit
//1bit trailing alpha
for (i = 0; i < w*h; i+=8, in++)
{
tmpmem[i+0] = (tmpmem[i+0] & 0xffffff) | ((*in&0x01)?0xff000000:0);
tmpmem[i+1] = (tmpmem[i+1] & 0xffffff) | ((*in&0x02)?0xff000000:0);
tmpmem[i+2] = (tmpmem[i+2] & 0xffffff) | ((*in&0x04)?0xff000000:0);
tmpmem[i+3] = (tmpmem[i+3] & 0xffffff) | ((*in&0x08)?0xff000000:0);
tmpmem[i+4] = (tmpmem[i+4] & 0xffffff) | ((*in&0x10)?0xff000000:0);
tmpmem[i+5] = (tmpmem[i+5] & 0xffffff) | ((*in&0x20)?0xff000000:0);
tmpmem[i+6] = (tmpmem[i+6] & 0xffffff) | ((*in&0x40)?0xff000000:0);
tmpmem[i+7] = (tmpmem[i+7] & 0xffffff) | ((*in&0x80)?0xff000000:0);
}
break;
case 4:
//BGRX palette, 8bit
//4bit trailing alpha
for (i = 0; i < w*h; i++)
tmpmem[i] = (tmpmem[i] & 0xffffff) | (*in++*0x11000000);
break;
case 8:
//BGRX palette, 8bit
//8bit trailing alpha
for (i = 0; i < w*h; i++)
tmpmem[i] = (tmpmem[i] & 0xffffff) | (*in++<<24);
break;
}
miplevel++;
if (!blp->hasmips || (flags & IF_NOMIPMAP))
break;
w = w>>1;
h = h>>1;
}
BZ_Free(filedata);
mips->mipcount = miplevel;
}
COM_AddWork(0, Image_LoadTextureMips, tex, mips, 0, 0);
return true;
}
#endif
//returns r8g8b8a8
qbyte *Read32BitImageFile(qbyte *buf, int len, int *width, int *height, qboolean *hasalpha, char *fname)
{
qbyte *data;
if ((data = ReadTargaFile(buf, len, width, height, hasalpha, false)))
{
TRACE(("dbg: Read32BitImageFile: tga\n"));
return data;
}
#ifdef AVAIL_PNGLIB
if (len > 4 && (buf[0] == 137 && buf[1] == 'P' && buf[2] == 'N' && buf[3] == 'G') && (data = ReadPNGFile(buf, len, width, height, fname)))
{
TRACE(("dbg: Read32BitImageFile: png\n"));
return data;
}
#endif
#ifdef AVAIL_JPEGLIB
//jpeg jfif only.
if (len > 4 && (buf[0] == 0xff && buf[1] == 0xd8 && buf[2] == 0xff && buf[3] == 0xe0) && (data = ReadJPEGFile(buf, len, width, height)))
{
TRACE(("dbg: Read32BitImageFile: jpeg\n"));
return data;
}
#endif
if ((data = ReadPCXFile(buf, len, width, height)))
{
TRACE(("dbg: Read32BitImageFile: pcx\n"));
return data;
}
if (len > 2 && (buf[0] == 'B' && buf[1] == 'M') && (data = ReadBMPFile(buf, len, width, height)))
{
TRACE(("dbg: Read32BitImageFile: bitmap\n"));
return data;
}
if (len >= 8) //.lmp has no magic id. guess at it.
{
int w = LittleLong(((int*)buf)[0]);
int h = LittleLong(((int*)buf)[1]);
int i;
if (w >= 3 && h >= 4 && w*h+sizeof(int)*2 == len)
{
qboolean foundalpha = false;
qbyte *in = (qbyte*)((int*)buf+2);
data = BZ_Malloc(w * h * sizeof(int));
for (i = 0; i < w * h; i++)
{
if (in[i] == 255)
foundalpha = true;
((unsigned int*)data)[i] = d_8to24rgbtable[in[i]];
}
*width = w;
*height = h;
*hasalpha = foundalpha;
return data;
}
}
TRACE(("dbg: Read32BitImageFile: life sucks\n"));
return NULL;
}
static void *R_FlipImage32(void *in, int *inoutwidth, int *inoutheight, qboolean flipx, qboolean flipy, qboolean flipd)
{
int x, y;
unsigned int *in32, *inr, *out32;
void *out;
int inwidth = *inoutwidth;
int inheight = *inoutheight;
int rowstride = inwidth;
int colstride = 1;
//simply return if no operation
if (!flipx && !flipy && !flipd)
return in;
inr = in;
out32 = out = BZ_Malloc(inwidth*inheight*4);
if (flipy)
{
inr += inwidth*inheight-inwidth;//start on the bottom row
rowstride *= -1; //and we need to move up instead
}
if (flipx)
{
colstride *= -1; //move backwards
inr += inwidth-1; //start at the end of the row
}
if (flipd)
{
//switch the dimensions
int tmp = inwidth;
inwidth = inheight;
inheight = tmp;
//make sure the caller gets the new dimensions
*inoutwidth = inwidth;
*inoutheight = inheight;
//switch the strides
tmp = colstride;
colstride = rowstride;
rowstride = tmp;
}
//rows->rows, columns->columns
for (y = 0; y < inheight; y++)
{
in32 = inr; //reset the input after each row, so we have truely independant row+column strides
inr += rowstride;
for (x = 0; x < inheight; x++)
{
*out32++ = *in32;
in32 += colstride;
}
}
BZ_Free(in);
return out;
}
int tex_extensions_count;
#define tex_extensions_max 15
static struct
{
char name[6];
} tex_extensions[tex_extensions_max];
void R_ImageExtensions_Callback(struct cvar_s *var, char *oldvalue)
{
char *v = var->string;
tex_extensions_count = 0;
while (tex_extensions_count < tex_extensions_max)
{
v = COM_Parse(v);
if (!v)
break;
Q_snprintfz(tex_extensions[tex_extensions_count].name, sizeof(tex_extensions[tex_extensions_count].name), ".%s", com_token);
tex_extensions_count++;
}
if (tex_extensions_count < tex_extensions_max)
{
Q_snprintfz(tex_extensions[tex_extensions_count].name, sizeof(tex_extensions[tex_extensions_count].name), "");
tex_extensions_count++;
}
}
static struct
{
int args;
char *path;
int enabled;
} tex_path[] =
{
/*if three args, first is the subpath*/
/*the last two args are texturename then extension*/
{2, "%s%s", 1}, /*directly named texture*/
{3, "textures/%s/%s%s", 1}, /*fuhquake compatibility*/
{3, "%s/%s%s", 1}, /*fuhquake compatibility*/
{2, "textures/%s%s", 1}, /*directly named texture with textures/ prefix*/
{2, "override/%s%s", 1} /*tenebrae compatibility*/
};
static void Image_MipMap8888 (qbyte *in, int inwidth, int inheight, qbyte *out, int outwidth, int outheight)
{
int i, j;
qbyte *inrow;
int rowwidth = inwidth*4; //rowwidth is the byte width of the input
inrow = in;
//mips round down, except for when the input is 1. which bugs out.
if (inwidth <= 1 && inheight <= 1)
{
out[0] = in[0];
out[1] = in[1];
out[2] = in[2];
out[3] = in[3];
}
else if (inheight <= 1)
{
//single row, don't peek at the next
for (in = inrow, j=0 ; j<outwidth ; j++, out+=4, in+=8)
{
out[0] = (in[0] + in[4])>>1;
out[1] = (in[1] + in[5])>>1;
out[2] = (in[2] + in[6])>>1;
out[3] = (in[3] + in[7])>>1;
}
}
else if (inwidth <= 1)
{
//single colum, peek only at this pixel
for (i=0 ; i<outheight ; i++, inrow+=rowwidth*2)
{
for (in = inrow, j=0 ; j<outwidth ; j++, out+=4, in+=8)
{
out[0] = (in[0] + in[rowwidth+0])>>1;
out[1] = (in[1] + in[rowwidth+1])>>1;
out[2] = (in[2] + in[rowwidth+2])>>1;
out[3] = (in[3] + in[rowwidth+3])>>1;
}
}
}
else
{
for (i=0 ; i<outheight ; i++, inrow+=rowwidth*2)
{
for (in = inrow, j=0 ; j<outwidth ; j++, out+=4, in+=8)
{
out[0] = (in[0] + in[4] + in[rowwidth+0] + in[rowwidth+4])>>2;
out[1] = (in[1] + in[5] + in[rowwidth+1] + in[rowwidth+5])>>2;
out[2] = (in[2] + in[6] + in[rowwidth+2] + in[rowwidth+6])>>2;
out[3] = (in[3] + in[7] + in[rowwidth+3] + in[rowwidth+7])>>2;
}
}
}
}
static void Image_GenerateMips(struct pendingtextureinfo *mips, unsigned int flags)
{
int mip;
if (mips->type != PTI_2D)
return; //blurgh
if (flags & IF_NOMIPMAP)
return;
switch(mips->encoding)
{
case PTI_RGBA8:
case PTI_RGBX8:
case PTI_BGRA8:
case PTI_BGRX8:
for (mip = 1; mip < 32; mip++)
{
mips->mip[mip].width = mips->mip[mip-1].width >> 1;
mips->mip[mip].height = mips->mip[mip-1].height >> 1;
if (mips->mip[mip].width < 1 && mips->mip[mip].height < 1)
break;
if (mips->mip[mip].width < 1)
mips->mip[mip].width = 1;
if (mips->mip[mip].height < 1)
mips->mip[mip].height = 1;
mips->mip[mip].datasize = ((mips->mip[mip].width+3)&~3) * mips->mip[mip].height*4;
mips->mip[mip].data = BZ_Malloc(mips->mip[mip].datasize);
mips->mip[mip].needfree = true;
Image_MipMap8888(mips->mip[mip-1].data, mips->mip[mip-1].width, mips->mip[mip-1].height, mips->mip[mip].data, mips->mip[mip].width, mips->mip[mip].height);
mips->mipcount = mip+1;
}
break;
case PTI_RGBA4444:
case PTI_RGB565:
case PTI_RGBA5551:
return; //convert to 16bit afterwards. always mipmap at 8 bit, to try to preserve what little precision there is.
default:
return; //not supported.
}
}
//stolen from DP
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];
}
}
}
//yes, this is lordhavok's code too.
//superblur away!
#define LERPBYTE(i) r = row1[i];out[i] = (qbyte) ((((row2[i] - r) * lerp) >> 16) + r)
static void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
{
int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth4 = inwidth*4, outwidth4 = outwidth*4;
qbyte *out;
const qbyte *inrow;
qbyte *tmem, *row1, *row2;
tmem = row1 = BZ_Malloc(2*(outwidth*4));
row2 = row1 + (outwidth * 4);
out = outdata;
fstep = (int) (inheight*65536.0f/outheight);
inrow = indata;
oldy = 0;
Image_Resample32LerpLine (inrow, row1, inwidth, outwidth);
Image_Resample32LerpLine (inrow + inwidth4, row2, 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(row1, row2, outwidth4);
else
Image_Resample32LerpLine (inrow, row1, inwidth, outwidth);
Image_Resample32LerpLine (inrow + inwidth4, row2, 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;
row1 += 16;
row2 += 16;
j -= 4;
}
if (j & 2)
{
LERPBYTE( 0);
LERPBYTE( 1);
LERPBYTE( 2);
LERPBYTE( 3);
LERPBYTE( 4);
LERPBYTE( 5);
LERPBYTE( 6);
LERPBYTE( 7);
out += 8;
row1 += 8;
row2 += 8;
}
if (j & 1)
{
LERPBYTE( 0);
LERPBYTE( 1);
LERPBYTE( 2);
LERPBYTE( 3);
out += 4;
row1 += 4;
row2 += 4;
}
row1 -= outwidth4;
row2 -= outwidth4;
}
else
{
if (yi != oldy)
{
inrow = (qbyte *)indata + inwidth4*yi;
if (yi == oldy+1)
memcpy(row1, row2, outwidth4);
else
Image_Resample32LerpLine (inrow, row1, inwidth, outwidth);
oldy = yi;
}
memcpy(out, row1, outwidth4);
}
}
BZ_Free(tmem);
}
/*
================
GL_ResampleTexture
================
*/
void Image_ResampleTexture (unsigned *in, int inwidth, int inheight, unsigned *out, int outwidth, int outheight)
{
int i, j;
unsigned *inrow;
unsigned frac, fracstep;
if (gl_lerpimages.ival)
{
Image_Resample32Lerp(in, inwidth, inheight, out, outwidth, outheight);
return;
}
fracstep = inwidth*0x10000/outwidth;
for (i=0 ; i<outheight ; i++, out += outwidth)
{
inrow = in + inwidth*(i*inheight/outheight);
frac = outwidth*fracstep;
j=outwidth;
while ((j)&3)
{
j--;
frac -= fracstep;
out[j] = inrow[frac>>16];
}
for ( ; j>=4 ;)
{
j-=4;
frac -= fracstep;
out[j+3] = inrow[frac>>16];
frac -= fracstep;
out[j+2] = inrow[frac>>16];
frac -= fracstep;
out[j+1] = inrow[frac>>16];
frac -= fracstep;
out[j+0] = inrow[frac>>16];
}
}
}
//ripped from tenebrae
static unsigned int * Image_GenerateNormalMap(qbyte *pixels, unsigned int *nmap, int w, int h, float scale)
{
int i, j, wr, hr;
unsigned char r, g, b;
float sqlen, reciplen, nx, ny, nz;
const float oneOver255 = 1.0f/255.0f;
float c, cx, cy, dcx, dcy;
wr = w;
hr = h;
for (i=0; i<h; i++)
{
for (j=0; j<w; j++)
{
/* Expand [0,255] texel values to the [0,1] range. */
c = pixels[i*wr + j] * oneOver255;
/* Expand the texel to its right. */
cx = pixels[i*wr + (j+1)%wr] * oneOver255;
/* Expand the texel one up. */
cy = pixels[((i+1)%hr)*wr + j] * oneOver255;
dcx = scale * (c - cx);
dcy = scale * (c - cy);
/* Normalize the vector. */
sqlen = dcx*dcx + dcy*dcy + 1;
reciplen = 1.0f/(float)sqrt(sqlen);
nx = dcx*reciplen;
ny = -dcy*reciplen;
nz = reciplen;
/* Repack the normalized vector into an RGB unsigned qbyte
vector in the normal map image. */
r = (qbyte) (128 + 127*nx);
g = (qbyte) (128 + 127*ny);
b = (qbyte) (128 + 127*nz);
/* The highest resolution mipmap level always has a
unit length magnitude. */
nmap[i*w+j] = LittleLong ((pixels[i*wr + j] << 24)|(b << 16)|(g << 8)|(r)); // <AWE> Added support for big endian.
}
}
return &nmap[0];
}
static void Image_RoundDimensions(int *scaled_width, int *scaled_height, unsigned int flags)
{
if (sh_config.texture_non_power_of_two) //NPOT is a simple extension that relaxes errors.
{
//lax form
TRACE(("dbg: GL_RoundDimensions: GL_ARB_texture_non_power_of_two\n"));
}
else if ((flags & IF_CLAMP) && (flags & IF_NOMIPMAP) && sh_config.texture_non_power_of_two_pic)
{
//more strict form
TRACE(("dbg: GL_RoundDimensions: GL_OES_texture_npot\n"));
}
else
{
int width = *scaled_width;
int height = *scaled_height;
for (*scaled_width = 1 ; *scaled_width < width ; *scaled_width<<=1)
;
for (*scaled_height = 1 ; *scaled_height < height ; *scaled_height<<=1)
;
/*round npot textures down if we're running on an embedded system*/
if (sh_config.npot_rounddown)
{
if (*scaled_width != width)
*scaled_width >>= 1;
if (*scaled_height != height)
*scaled_height >>= 1;
}
}
if (flags & IF_NOMIPMAP)
{
*scaled_width >>= gl_picmip2d.ival;
*scaled_height >>= gl_picmip2d.ival;
}
else
{
TRACE(("dbg: GL_RoundDimensions: %f\n", gl_picmip.value));
*scaled_width >>= gl_picmip.ival;
*scaled_height >>= gl_picmip.ival;
}
TRACE(("dbg: GL_RoundDimensions: %f\n", gl_max_size.value));
if (sh_config.texture_maxsize)
{
if (*scaled_width > sh_config.texture_maxsize)
*scaled_width = sh_config.texture_maxsize;
if (*scaled_height > sh_config.texture_maxsize)
*scaled_height = sh_config.texture_maxsize;
}
if (!(flags & (IF_UIPIC|IF_RENDERTARGET)))
{
if (gl_max_size.value)
{
if (*scaled_width > gl_max_size.value)
*scaled_width = gl_max_size.value;
if (*scaled_height > gl_max_size.value)
*scaled_height = gl_max_size.value;
}
}
if (*scaled_width < 1)
*scaled_width = 1;
if (*scaled_height < 1)
*scaled_height = 1;
}
//may operate in place
static void Image_8888to565(qbyte *in, unsigned short *out, unsigned int w, unsigned int h, qboolean bgra)
{
unsigned int p = w*h;
unsigned short tmp;
if (bgra)
{
while(p-->0)
{
tmp = ((*in++>>3) << 0);//b
tmp |= ((*in++>>2) << 5);//g
tmp |= ((*in++>>3) << 11);//r
in++;
*out++ = tmp;
}
}
else
{
while(p-->0)
{
tmp = ((*in++>>3) << 11);//r
tmp |= ((*in++>>2) << 5);//g
tmp |= ((*in++>>3) << 0);//b
in++;
*out++ = tmp;
}
}
}
//may operate in place
static void Image_8888to1555(qbyte *in, unsigned short *out, unsigned int w, unsigned int h, qboolean bgra)
{
unsigned int p = w*h;
unsigned short tmp;
if (bgra)
{
while(p-->0)
{
tmp = ((*in++>>3) << 0);//b
tmp |= ((*in++>>3) << 5);//g
tmp |= ((*in++>>3) << 10);//r
tmp |= ((*in++>>7) << 15);//a
*out++ = tmp;
}
}
else
{
while(p-->0)
{
tmp = ((*in++>>3) << 10);//r
tmp |= ((*in++>>3) << 5);//g
tmp |= ((*in++>>3) << 0);//b
tmp |= ((*in++>>7) << 15);//a
*out++ = tmp;
}
}
}
//may operate in place
static void Image_8888to5551(qbyte *in, unsigned short *out, unsigned int w, unsigned int h, qboolean bgra)
{
unsigned int p = w*h;
unsigned short tmp;
if (bgra)
{
while(p-->0)
{
tmp = ((*in++>>3) << 1);//b
tmp |= ((*in++>>3) << 6);//g
tmp |= ((*in++>>3) << 11);//r
tmp |= ((*in++>>7) << 0);//a
*out++ = tmp;
}
}
else
{
while(p-->0)
{
tmp = ((*in++>>3) << 11);//r
tmp |= ((*in++>>3) << 6);//g
tmp |= ((*in++>>3) << 1);//b
tmp |= ((*in++>>7) << 0);//a
*out++ = tmp;
}
}
}
//may operate in place
static void Image_8888to4444(qbyte *in, unsigned short *out, unsigned int w, unsigned int h, qboolean bgra)
{
unsigned int p = w*h;
unsigned short tmp;
if (bgra)
{
while(p-->0)
{
tmp = ((*in++>>4) << 4);//b
tmp |= ((*in++>>4) << 8);//g
tmp |= ((*in++>>4) << 12);//r
tmp |= ((*in++>>4) << 0);//a
*out++ = tmp;
}
}
else
{
while(p-->0)
{
tmp = ((*in++>>4) << 12);//r
tmp |= ((*in++>>4) << 8);//g
tmp |= ((*in++>>4) << 4);//b
tmp |= ((*in++>>4) << 0);//a
*out++ = tmp;
}
}
}
//may operate in place
static void Image_8888toARGB4444(qbyte *in, unsigned short *out, unsigned int w, unsigned int h, qboolean bgra)
{
unsigned int p = w*h;
unsigned short tmp;
if (bgra)
{
while(p-->0)
{
tmp = ((*in++>>4) << 0);//b
tmp |= ((*in++>>4) << 4);//g
tmp |= ((*in++>>4) << 8);//r
tmp |= ((*in++>>4) << 12);//a
*out++ = tmp;
}
}
else
{
while(p-->0)
{
tmp = ((*in++>>4) << 8);//r
tmp |= ((*in++>>4) << 4);//g
tmp |= ((*in++>>4) << 0);//b
tmp |= ((*in++>>4) << 12);//a
*out++ = tmp;
}
}
}
static void Image_ChangeFormat(struct pendingtextureinfo *mips, uploadfmt_t origfmt)
{
int mip;
if (mips->type != PTI_2D)
return; //blurgh
//if that format isn't supported/desired, try converting it.
if (sh_config.texfmt[PTI_RGBX8])
return;
//should we just use 5551 always?
if (mips->encoding == PTI_RGBX8 || mips->encoding == PTI_BGRX8)
{
/*if (0)
{ //prevent discolouration.
if (sh_config.texfmt[PTI_RGBA5551])
{
for (mip = 0; mip < mips->mipcount; mip++)
Image_8888to5551(mips->mip[mip].data, mips->mip[mip].data, mips->mip[mip].width, mips->mip[mip].height, mips->encoding == PTI_BGRX8);
mips->encoding = PTI_RGBA5551;
}
else
{
for (mip = 0; mip < mips->mipcount; mip++)
Image_8888to1555(mips->mip[mip].data, mips->mip[mip].data, mips->mip[mip].width, mips->mip[mip].height, mips->encoding == PTI_BGRX8);
mips->encoding = PTI_ARGB1555;
}
}
else*/
{
for (mip = 0; mip < mips->mipcount; mip++)
Image_8888to565(mips->mip[mip].data, mips->mip[mip].data, mips->mip[mip].width, mips->mip[mip].height, mips->encoding == PTI_BGRX8);
mips->encoding = PTI_RGB565;
}
}
else if (mips->encoding == PTI_RGBA8 || mips->encoding == PTI_BGRA8)
{
if (origfmt == TF_TRANS8 || origfmt == TF_TRANS8_FULLBRIGHT || origfmt == TF_H2_TRANS8_0 || !(sh_config.texfmt[PTI_RGBA4444] || sh_config.texfmt[PTI_ARGB4444]))
{ //1-bit alpha is okay for these textures.
if (sh_config.texfmt[PTI_RGBA5551])
{
for (mip = 0; mip < mips->mipcount; mip++)
Image_8888to5551(mips->mip[mip].data, mips->mip[mip].data, mips->mip[mip].width, mips->mip[mip].height, mips->encoding == PTI_BGRA8);
mips->encoding = PTI_RGBA5551;
}
else
{
for (mip = 0; mip < mips->mipcount; mip++)
Image_8888to1555(mips->mip[mip].data, mips->mip[mip].data, mips->mip[mip].width, mips->mip[mip].height, mips->encoding == PTI_BGRA8);
mips->encoding = PTI_ARGB1555;
}
}
else
{
if (sh_config.texfmt[PTI_RGBA4444])
{
for (mip = 0; mip < mips->mipcount; mip++)
Image_8888to4444(mips->mip[mip].data, mips->mip[mip].data, mips->mip[mip].width, mips->mip[mip].height, mips->encoding == PTI_BGRA8);
mips->encoding = PTI_RGBA4444;
}
else
{
for (mip = 0; mip < mips->mipcount; mip++)
Image_8888toARGB4444(mips->mip[mip].data, mips->mip[mip].data, mips->mip[mip].width, mips->mip[mip].height, mips->encoding == PTI_BGRA8);
mips->encoding = PTI_ARGB4444;
}
}
}
}
//resamples and depalettes as required
static qboolean Image_GenMip0(struct pendingtextureinfo *mips, unsigned int flags, void *rawdata, void *palettedata, int imgwidth, int imgheight, uploadfmt_t fmt, qboolean freedata)
{
unsigned int *rgbadata = rawdata;
int i;
mips->mip[0].width = imgwidth;
mips->mip[0].height = imgheight;
mips->mipcount = 1;
switch(fmt)
{
case TF_DEPTH16:
mips->encoding = PTI_DEPTH16;
break;
case TF_DEPTH24:
mips->encoding = PTI_DEPTH24;
break;
case TF_DEPTH32:
mips->encoding = PTI_DEPTH32;
break;
case TF_RGBA16F:
case TF_RGBA32F:
if (rawdata)
{
Con_Printf("R_LoadRawTexture: bad format");
if (freedata)
BZ_Free(rawdata);
return false;
}
mips->encoding = (fmt==TF_RGBA16F)?PTI_RGBA16F:TF_RGBA32F;
break;
default:
case TF_INVALID:
Con_Printf("R_LoadRawTexture: bad format");
if (freedata)
BZ_Free(rawdata);
return false;
case TF_RGBX32:
mips->encoding = PTI_RGBX8;
break;
case TF_RGBA32:
mips->encoding = PTI_RGBA8;
break;
case TF_BGRX32:
mips->encoding = PTI_BGRX8;
break;
case TF_BGRA32:
mips->encoding = PTI_BGRA8;
break;
case TF_SOLID8:
rgbadata = BZ_Malloc(imgwidth * imgheight*4);
if (sh_config.texfmt[PTI_BGRX8])
{ //bgra8 is typically faster when supported.
mips->encoding = PTI_BGRX8;
for (i = 0; i < imgwidth * imgheight; i++)
rgbadata[i] = d_8to24bgrtable[((qbyte*)rawdata)[i]];
}
else
{
mips->encoding = PTI_RGBX8;
for (i = 0; i < imgwidth * imgheight; i++)
rgbadata[i] = d_8to24rgbtable[((qbyte*)rawdata)[i]];
}
if (freedata)
BZ_Free(rawdata);
freedata = true;
break;
case TF_TRANS8:
case TF_H2_TRANS8_0:
{
qbyte ref = (fmt==TF_H2_TRANS8_0)?0:0xff;
mips->encoding = PTI_RGBX8;
rgbadata = BZ_Malloc(imgwidth * imgheight*4);
for (i = 0; i < imgwidth * imgheight; i++)
{
if (((qbyte*)rawdata)[i] == ref)
{//fixme: blend non-0xff neighbours. no, just use premultiplied alpha instead, where it matters.
rgbadata[i] = 0;
mips->encoding = PTI_RGBA8;
}
else
rgbadata[i] = d_8to24rgbtable[((qbyte*)rawdata)[i]];
}
if (freedata)
BZ_Free(rawdata);
freedata = true;
}
break;
case TF_TRANS8_FULLBRIGHT:
mips->encoding = PTI_RGBA8;
rgbadata = BZ_Malloc(imgwidth * imgheight*4);
for (i = 0; i < imgwidth * imgheight; i++)
{
if (((qbyte*)rawdata)[i] < 255-vid.fullbright)
rgbadata[i] = 0;
else
rgbadata[i] = d_8to24rgbtable[((qbyte*)rawdata)[i]];
}
if (freedata)
BZ_Free(rawdata);
freedata = true;
break;
case TF_HEIGHT8PAL:
mips->encoding = PTI_RGBA8;
rgbadata = BZ_Malloc(imgwidth * imgheight*5);
{
qbyte *heights = (qbyte*)(rgbadata + (imgwidth*imgheight));
for (i = 0; i < imgwidth * imgheight; i++)
{
unsigned int rgb = d_8to24rgbtable[((qbyte*)rawdata)[i]];
heights[i] = (((rgb>>16)&0xff) + ((rgb>>8)&0xff) + ((rgb>>0)&0xff))/3;
}
Image_GenerateNormalMap(heights, rgbadata, imgwidth, imgheight, r_shadow_bumpscale_basetexture.value?r_shadow_bumpscale_basetexture.value:4);
}
if (freedata)
BZ_Free(rawdata);
freedata = true;
break;
case TF_HEIGHT8:
mips->encoding = PTI_RGBA8;
rgbadata = BZ_Malloc(imgwidth * imgheight*4);
Image_GenerateNormalMap(rawdata, rgbadata, imgwidth, imgheight, r_shadow_bumpscale_bumpmap.value);
if (freedata)
BZ_Free(rawdata);
freedata = true;
break;
case TF_8PAL24:
if (!palettedata)
{
Con_Printf("TF_8PAL24: no palette");
if (freedata)
BZ_Free(rawdata);
return false;
}
mips->encoding = PTI_RGBX8;
rgbadata = BZ_Malloc(imgwidth * imgheight*4);
for (i = 0; i < imgwidth * imgheight; i++)
{
qbyte *p = ((qbyte*)palettedata) + ((qbyte*)rawdata)[i]*3;
//FIXME: endian
rgbadata[i] = 0xff000000 | (p[0]<<0) | (p[1]<<8) | (p[2]<<16);
}
if (freedata)
BZ_Free(rawdata);
freedata = true;
break;
case TF_8PAL32:
{
Con_Printf("TF_8PAL24: no palette");
if (freedata)
BZ_Free(rawdata);
return false;
}
mips->encoding = PTI_RGBA8;
rgbadata = BZ_Malloc(imgwidth * imgheight*4);
for (i = 0; i < imgwidth * imgheight; i++)
rgbadata[i] = ((unsigned int*)palettedata)[((qbyte*)rawdata)[i]];
if (freedata)
BZ_Free(rawdata);
freedata = true;
break;
#ifdef HEXEN2
case TF_H2_T7G1: /*8bit data, odd indexes give greyscale transparence*/
mips->encoding = PTI_RGBA8;
rgbadata = BZ_Malloc(imgwidth * imgheight*4);
for (i = 0; i < imgwidth * imgheight; i++)
{
qbyte p = ((qbyte*)rawdata)[i];
rgbadata[i] = d_8to24rgbtable[p] & 0x00ffffff;
if (p == 0)
;
else if (p&1)
rgbadata[i] |= 0x80000000;
else
rgbadata[i] |= 0xff000000;
}
if (freedata)
BZ_Free(rawdata);
freedata = true;
break;
case TF_H2_T4A4: /*8bit data, weird packing*/
mips->encoding = PTI_RGBA8;
rgbadata = BZ_Malloc(imgwidth * imgheight*4);
for (i = 0; i < imgwidth * imgheight; i++)
{
static const int ColorIndex[16] = {0, 31, 47, 63, 79, 95, 111, 127, 143, 159, 175, 191, 199, 207, 223, 231};
static const unsigned ColorPercent[16] = {25, 51, 76, 102, 114, 127, 140, 153, 165, 178, 191, 204, 216, 229, 237, 247};
qbyte p = ((qbyte*)rawdata)[i];
rgbadata[i] = d_8to24rgbtable[ColorIndex[p>>4]] & 0x00ffffff;
rgbadata[i] |= ( int )ColorPercent[p&15] << 24;
}
if (freedata)
BZ_Free(rawdata);
freedata = true;
break;
#endif
}
if (flags & IF_NOALPHA)
{
switch(mips->encoding)
{
case PTI_RGBA8:
mips->encoding = PTI_RGBX8;
break;
case PTI_BGRA8:
mips->encoding = PTI_RGBX8;
break;
case PTI_RGBA16F:
case PTI_RGBA32F:
case PTI_ARGB4444:
case PTI_ARGB1555:
case PTI_RGBA4444:
case PTI_RGBA5551:
break; //erk
case PTI_S3RGBA1: //mostly compatible, but I don't want to push it.
case PTI_S3RGBA3:
case PTI_S3RGBA5:
//erk. meh.
break;
case PTI_RGB565:
case PTI_RGBX8:
case PTI_BGRX8:
case PTI_S3RGB1:
break;
case PTI_DEPTH16:
case PTI_DEPTH24:
case PTI_DEPTH32:
case PTI_DEPTH24_8:
break;
}
//FIXME: fill alpha channel with 255?
}
Image_RoundDimensions(&mips->mip[0].width, &mips->mip[0].height, flags);
if (rgbadata)
{
if (mips->mip[0].width == imgwidth && mips->mip[0].height == imgheight)
mips->mip[0].data = rgbadata;
else
{
mips->mip[0].data = BZ_Malloc(((mips->mip[0].width+3)&~3)*mips->mip[0].height*4);
// memset(mips->mip[0].data, 0, mips->mip[0].width*mips->mip[0].height*4);
Image_ResampleTexture(rgbadata, imgwidth, imgheight, mips->mip[0].data, mips->mip[0].width, mips->mip[0].height);
if (freedata)
BZ_Free(rgbadata);
freedata = true;
}
}
else
mips->mip[0].data = NULL;
mips->mip[0].datasize = mips->mip[0].width*mips->mip[0].height*4;
if (mips->type == PTI_3D)
{
qbyte *data2d = mips->mip[0].data, *data3d;
mips->mip[0].data = NULL;
/*our 2d input image is interlaced as y0z0,y0z1,y1z0,y1z1
however, hardware uses the more logical y0z0,y1z0,y0z1,y1z1 ordering (xis ordered properly already)*/
if (mips->mip[0].height*mips->mip[0].height == mips->mip[0].width && (mips->encoding == PTI_RGBA8 || mips->encoding == PTI_RGBX8 || mips->encoding == PTI_BGRA8 || mips->encoding == PTI_BGRX8))
{
int d, r;
int size = mips->mip[0].height;
mips->mip[0].data = data3d = BZ_Malloc(size*size*size);
for (d = 0; d < size; d++)
for (r = 0; r < size; r++)
memcpy(data3d + (r + d*size) * size, data2d + (r*size + d) * size, size*4);
mips->mip[0].datasize = size*size*size*4;
}
if (freedata)
BZ_Free(data2d);
if (!mips->mip[0].data)
return false;
}
if (flags & IF_PREMULTIPLYALPHA)
{
//works for rgba or bgra
int i;
unsigned char *fte_restrict premul = (unsigned char*)mips->mip[0].data;
for (i = 0; i < mips->mip[0].width*mips->mip[0].height; i++, premul+=4)
{
premul[0] = (premul[0] * premul[3])>>8;
premul[1] = (premul[1] * premul[3])>>8;
premul[2] = (premul[2] * premul[3])>>8;
}
}
mips->mip[0].needfree = freedata;
return true;
}
//loads from a single mip. takes ownership of the data.
static qboolean Image_LoadRawTexture(texid_t tex, unsigned int flags, void *rawdata, int imgwidth, int imgheight, uploadfmt_t fmt)
{
struct pendingtextureinfo *mips;
mips = Z_Malloc(sizeof(*mips));
mips->type = (flags & IF_3DMAP)?PTI_3D:PTI_2D;
if (!Image_GenMip0(mips, flags, rawdata, NULL, imgwidth, imgheight, fmt, true))
{
Z_Free(mips);
return false;
}
Image_GenerateMips(mips, flags);
Image_ChangeFormat(mips, fmt);
tex->width = imgwidth;
tex->height = imgheight;
if (flags & IF_NOWORKER)
Image_LoadTextureMips(tex, mips, 0, 0);
else
COM_AddWork(0, Image_LoadTextureMips, tex, mips, 0, 0);
return true;
}
//always frees filedata, even on failure.
//also frees the textures fallback data, but only on success
qboolean Image_LoadTextureFromMemory(texid_t tex, int flags, const char *iname, char *fname, qbyte *filedata, int filesize)
{
qboolean hasalpha;
qbyte *rgbadata;
int imgwidth, imgheight;
//these formats have special handling, because they cannot be implemented via Read32BitImageFile - they don't result in rgba images.
#ifdef IMAGEFMT_DDS
if (Image_ReadDDSFile(tex, flags, fname, filedata, filesize))
return true;
#endif
#ifdef IMAGEFMT_BLP
if (filedata[0] == 'B' && filedata[1] == 'L' && filedata[2] == 'P' && filedata[3] == '2')
{
if (Image_ReadBLPFile(tex, flags, fname, filedata, filesize))
return true;
}
#endif
hasalpha = false;
if ((rgbadata = Read32BitImageFile(filedata, filesize, &imgwidth, &imgheight, &hasalpha, fname)))
{
extern cvar_t vid_hardwaregamma;
if (!(flags&IF_NOGAMMA) && !vid_hardwaregamma.value)
BoostGamma(rgbadata, imgwidth, imgheight);
if (hasalpha)
flags &= ~IF_NOALPHA;
else if (!(flags & IF_NOALPHA))
{
unsigned int alpha_width, alpha_height, p;
char aname[MAX_QPATH];
unsigned char *alphadata;
char *alph;
size_t alphsize;
char ext[8];
COM_StripExtension(fname, aname, sizeof(aname));
COM_FileExtension(fname, ext, sizeof(ext));
Q_strncatz(aname, "_alpha.", sizeof(aname));
Q_strncatz(aname, ext, sizeof(aname));
if ((alph = COM_LoadFile (aname, 5, &alphsize)))
{
if ((alphadata = Read32BitImageFile(alph, alphsize, &alpha_width, &alpha_height, &hasalpha, aname)))
{
if (alpha_width == imgwidth && alpha_height == imgheight)
{
for (p = 0; p < alpha_width*alpha_height; p++)
{
rgbadata[(p<<2) + 3] = (alphadata[(p<<2) + 0] + alphadata[(p<<2) + 1] + alphadata[(p<<2) + 2])/3;
}
}
BZ_Free(alphadata);
}
BZ_Free(alph);
}
}
if (Image_LoadRawTexture(tex, flags, rgbadata, imgwidth, imgheight, TF_RGBA32))
{
BZ_Free(filedata);
//and kill the fallback now that its loaded, as it won't be needed any more.
BZ_Free(tex->fallbackdata);
tex->fallbackdata = NULL;
return true;
}
BZ_Free(rgbadata);
}
else
Sys_Printf("Unable to read file %s (format unsupported)\n", fname);
BZ_Free(filedata);
return false;
}
//loads from a single mip. takes ownership of the data.
static qboolean Image_LoadCubemapTexture(texid_t tex, char *nicename)
{
static struct
{
char *suffix;
qboolean flipx, flipy, flipd;
} cmscheme[] =
{
{"rt", true, false, true},
{"lf", false, true, true},
{"ft", true, true, false},
{"bk", false, false, false},
{"up", true, false, true},
{"dn", true, false, true},
{"px", false, false, false},
{"nx", false, false, false},
{"py", false, false, false},
{"ny", false, false, false},
{"pz", false, false, false},
{"nz", false, false, false},
{"posx", false, false, false},
{"negx", false, false, false},
{"posy", false, false, false},
{"negy", false, false, false},
{"posz", false, false, false},
{"negz", false, false, false}
};
int i, j, e;
struct pendingtextureinfo *mips;
char fname[MAX_QPATH];
size_t filesize;
int width, height;
qboolean hasalpha;
mips = Z_Malloc(sizeof(*mips));
mips->type = PTI_CUBEMAP;
mips->mipcount = 6;
mips->encoding = PTI_RGBA8;
mips->extrafree = NULL;
for (i = 0; i < 6; i++)
{
for (e = (tex->flags & IF_EXACTEXTENSION)?tex_extensions_count-1:0; e < tex_extensions_count; e++)
{
//try and open one
qbyte *buf = NULL, *data;
filesize = 0;
for (j = 0; j < sizeof(cmscheme)/sizeof(cmscheme[0])/6; j++)
{
Q_snprintfz(fname, sizeof(fname), "%s%s%s", nicename, cmscheme[i + 6*j].suffix, tex_extensions[e].name);
buf = COM_LoadFile(fname, 5, &filesize);
if (buf)
break;
}
//now read it
if (buf)
{
if ((data = Read32BitImageFile(buf, filesize, &width, &height, &hasalpha, fname)))
{
extern cvar_t vid_hardwaregamma;
if (!(tex->flags&IF_NOGAMMA) && !vid_hardwaregamma.value)
BoostGamma(data, width, height);
mips->mip[i].data = R_FlipImage32(data, &width, &height, cmscheme[i + 6*j].flipx, cmscheme[i + 6*j].flipy, cmscheme[i + 6*j].flipd);
mips->mip[i].datasize = width*height*4;
mips->mip[i].width = width;
mips->mip[i].height = height;
mips->mip[i].needfree = true;
if (i == 0)
{
tex->width = width;
tex->height = height;
}
BZ_Free(buf);
break;
}
BZ_Free(buf);
}
}
}
if (tex->flags & IF_NOWORKER)
Image_LoadTextureMips(tex, mips, 0, 0);
else
COM_AddWork(0, Image_LoadTextureMips, tex, mips, 0, 0);
return true;
}
void Image_LoadHiResTextureWorker(void *ctx, void *data, size_t a, size_t b)
{
image_t *tex = ctx;
char fname[MAX_QPATH], iname[MAX_QPATH], nicename[MAX_QPATH];
int i, e;
char *buf;
size_t fsize;
int firstex = (tex->flags & IF_EXACTEXTENSION)?tex_extensions_count-1:0;
// Sys_Sleep(0.3);
//see if we recognise the extension, and only strip it if we do.
COM_FileExtension(tex->ident, nicename, sizeof(nicename));
e = 0;
if (strcmp(nicename, "lmp"))
for (; e < tex_extensions_count; e++)
{
if (!strcmp(nicename, (*tex_extensions[e].name=='.')?tex_extensions[e].name+1:tex_extensions[e].name))
break;
}
//strip it and try replacements if we do, otherwise assume that we're meant to be loading progs/foo.mdl_0.tga or whatever
if (e == tex_extensions_count || (tex->flags & IF_EXACTEXTENSION))
Q_strncpyz(nicename, tex->ident, sizeof(nicename));
else
COM_StripExtension(tex->ident, nicename, sizeof(nicename));
if ((tex->flags & IF_TEXTYPE) == IF_CUBEMAP)
{ //cubemaps require special handling because they are (normally) 6 files instead of 1.
//the exception is single-file dds cubemaps, but we don't support those.
if (!Image_LoadCubemapTexture(tex, nicename))
{
if (tex->flags & IF_NOWORKER)
Image_LoadTexture_Failed(tex, NULL, 0, 0);
else
COM_AddWork(0, Image_LoadTexture_Failed, tex, NULL, 0, 0);
}
return;
}
if (!tex->fallbackdata || (gl_load24bit.ival && !(tex->flags & IF_NOREPLACE)))
{
if (strchr(nicename, '/') || strchr(nicename, '\\')) //never look in a root dir for the pic
i = 0;
else
i = 1;
for (; i < sizeof(tex_path)/sizeof(tex_path[0]); i++)
{
if (!tex_path[i].enabled)
continue;
if (tex_path[i].args >= 3)
{ //this is a path that needs subpaths
char subpath[MAX_QPATH];
char basename[MAX_QPATH];
char *s, *n;
if (!tex->subpath || !*nicename)
continue;
s = COM_SkipPath(nicename);
n = basename;
while (*s && *s != '.' && n < basename+sizeof(basename)-5)
*n++ = *s++;
s = strchr(s, '_');
if (s)
{
while (*s && n < basename+sizeof(basename)-5)
*n++ = *s++;
}
*n = 0;
for(s = tex->subpath; s; s = n)
{
//subpath a:b:c tries multiple possible sub paths, for compatibility
n = strchr(s, ':');
if (n)
{
if (n-s >= sizeof(subpath))
*subpath = 0;
else
{
memcpy(subpath, s, n-s);
subpath[n-s] = 0;
}
n++;
}
else
Q_strncpyz(subpath, s, sizeof(subpath));
for (e = firstex; e < tex_extensions_count; e++)
{
if (tex->flags & IF_NOPCX)
if (!strcmp(tex_extensions[e].name, ".pcx"))
continue;
Q_snprintfz(fname, sizeof(fname), tex_path[i].path, subpath, basename, tex_extensions[e].name);
if ((buf = COM_LoadFile (fname, 5, &fsize)))
{
Q_snprintfz(iname, sizeof(iname), "%s/%s", subpath, nicename); /*should be safe if its null*/
if (Image_LoadTextureFromMemory(tex, tex->flags, iname, fname, buf, fsize))
return;
}
}
}
}
else
{
for (e = firstex; e < tex_extensions_count; e++)
{
if (tex->flags & IF_NOPCX)
if (!strcmp(tex_extensions[e].name, ".pcx"))
continue;
Q_snprintfz(fname, sizeof(fname), tex_path[i].path, nicename, tex_extensions[e].name);
if ((buf = COM_LoadFile (fname, 5, &fsize)))
if (Image_LoadTextureFromMemory(tex, tex->flags, nicename, fname, buf, fsize))
return;
}
}
//support expansion of _bump textures to _norm textures.
if (tex->flags & IF_TRYBUMP)
{
if (tex_path[i].args >= 3)
{
/*no legacy compat needed, hopefully*/
}
else
{
char bumpname[MAX_QPATH], *n, *b;
b = bumpname;
n = nicename;
while(*n)
{
if (*n == '_' && !strcmp(n, "_norm"))
{
strcpy(b, "_bump");
b += 5;
n += 5;
break;
}
*b++ = *n++;
}
if (*n) //no _norm, give up with that
continue;
*b = 0;
for (e = firstex; e < tex_extensions_count; e++)
{
if (!strcmp(tex_extensions[e].name, ".tga"))
{
Q_snprintfz(fname, sizeof(fname), tex_path[i].path, bumpname, tex_extensions[e].name);
if ((buf = COM_LoadFile (fname, 5, &fsize)))
{
int w, h;
qboolean a;
qbyte *d;
if ((d = ReadTargaFile(buf, fsize, &w, &h, &a, 2))) //Only load a greyscale image.
{
BZ_Free(buf);
if (Image_LoadRawTexture(tex, tex->flags, d, w, h, TF_HEIGHT8))
{
BZ_Free(tex->fallbackdata);
tex->fallbackdata = NULL;
return;
}
}
else
BZ_Free(buf);
}
}
}
}
}
}
/*still failed? attempt to load quake lmp files, which have no real format id (hence why they're not above)*/
Q_strncpyz(fname, nicename, sizeof(fname));
COM_DefaultExtension(fname, ".lmp", sizeof(fname));
if (!(tex->flags & IF_NOPCX) && (buf = COM_LoadFile (fname, 5, &fsize)))
{
if (Image_LoadTextureFromMemory(tex, tex->flags, nicename, fname, buf, fsize))
return;
}
else
{
int imgwidth;
int imgheight;
qboolean alphaed;
//now look in wad files. (halflife compatability)
buf = W_GetTexture(nicename, &imgwidth, &imgheight, &alphaed);
if (buf)
{
if (Image_LoadRawTexture(tex, tex->flags, buf, imgwidth, imgheight, TF_RGBA32))
{
BZ_Free(tex->fallbackdata);
tex->fallbackdata = NULL;
return;
}
BZ_Free(buf);
}
}
}
if (tex->fallbackdata)
{
if (Image_LoadRawTexture(tex, tex->flags, tex->fallbackdata, tex->fallbackwidth, tex->fallbackheight, tex->fallbackfmt))
{
tex->fallbackdata = NULL;
return;
}
BZ_Free(tex->fallbackdata);
tex->fallbackdata = NULL;
}
// Sys_Printf("Texture %s failed\n", nicename);
//signal the main thread to set the final status instead of just setting it to avoid deadlock (it might already be waiting for it).
if (tex->flags & IF_NOWORKER)
Image_LoadTexture_Failed(tex, NULL, 0, 0);
else
COM_AddWork(0, Image_LoadTexture_Failed, tex, NULL, 0, 0);
}
//find an existing texture
image_t *Image_FindTexture(const char *identifier, const char *subdir, unsigned int flags)
{
image_t *tex;
tex = Hash_Get(&imagetable, identifier);
while(tex)
{
if ((tex->flags ^ flags) & IF_CLAMP)
{
tex = Hash_GetNext(&imagetable, identifier, tex);
continue;
}
return tex;
}
return NULL;
}
//create a texture, with dupes. you'll need to load something into it too.
static image_t *Image_CreateTexture_Internal (const char *identifier, const char *subdir, unsigned int flags)
{
image_t *tex;
bucket_t *buck;
tex = Z_Malloc(sizeof(*tex) + sizeof(bucket_t) + strlen(identifier)+1 + (subdir?strlen(subdir)+1:0));
buck = (bucket_t*)(tex+1);
tex->ident = (char*)(buck+1);
strcpy(tex->ident, identifier);
if (subdir && *subdir)
{
tex->subpath = tex->ident + strlen(identifier)+1;
strcpy(tex->subpath, subdir);
}
tex->next = imagelist;
imagelist = tex;
tex->flags = flags;
tex->width = 0;
tex->height = 0;
tex->regsequence = r_regsequence;
tex->status = TEX_NOTLOADED;
tex->fallbackdata = NULL;
tex->fallbackwidth = 0;
tex->fallbackheight = 0;
tex->fallbackfmt = TF_INVALID;
if (*tex->ident)
Hash_Add(&imagetable, tex->ident, tex, buck);
return tex;
}
image_t *Image_CreateTexture (const char *identifier, const char *subdir, unsigned int flags)
{
image_t *image;
#ifdef LOADERTHREAD
Sys_LockMutex(com_resourcemutex);
#endif
image = Image_CreateTexture_Internal(identifier, subdir, flags);
#ifdef LOADERTHREAD
Sys_UnlockMutex(com_resourcemutex);
#endif
return image;
}
//find a texture. will try to load it from disk, using the fallback if it would fail.
image_t *Image_GetTexture(const char *identifier, const char *subpath, unsigned int flags, void *fallbackdata, void *fallbackpalette, int fallbackwidth, int fallbackheight, uploadfmt_t fallbackfmt)
{
image_t *tex;
#ifdef LOADERTHREAD
Sys_LockMutex(com_resourcemutex);
#endif
tex = Image_FindTexture(identifier, subpath, flags);
if (tex)
{
if (!fallbackdata || tex->status != TEX_FAILED)
{
#ifdef LOADERTHREAD
Sys_UnlockMutex(com_resourcemutex);
#endif
return tex; //already exists
}
tex->flags = flags;
}
else
tex = Image_CreateTexture_Internal(identifier, subpath, flags);
tex->status = TEX_LOADING;
if (fallbackdata)
{
int b, pb = 0;
switch(fallbackfmt)
{
case TF_8PAL24:
pb = 3*256;
b = 1;
break;
case TF_8PAL32:
pb = 4*256;
b = 1;
break;
case TF_SOLID8:
case TF_TRANS8:
case TF_TRANS8_FULLBRIGHT:
case TF_H2_T7G1:
case TF_H2_TRANS8_0:
case TF_H2_T4A4:
case TF_HEIGHT8:
case TF_HEIGHT8PAL: //we don't care about the actual palette.
b = 1;
break;
case TF_RGBX32:
case TF_RGBA32:
case TF_BGRX32:
case TF_BGRA32:
b = 4;
break;
default:
Sys_Error("GL_FindTextureFallback: bad format");
}
tex->fallbackdata = BZ_Malloc(fallbackwidth*fallbackheight*b + pb);
memcpy(tex->fallbackdata, fallbackdata, fallbackwidth*fallbackheight*b);
if (pb)
memcpy((qbyte*)tex->fallbackdata + fallbackwidth*fallbackheight*b, fallbackpalette, pb);
tex->fallbackwidth = fallbackwidth;
tex->fallbackheight = fallbackheight;
tex->fallbackfmt = fallbackfmt;
}
else
{
tex->fallbackdata = NULL;
tex->fallbackwidth = 0;
tex->fallbackheight = 0;
tex->fallbackfmt = TF_INVALID;
}
#ifdef LOADERTHREAD
Sys_UnlockMutex(com_resourcemutex);
#endif
//FIXME: pass fallback through this way instead?
if (flags & IF_NOWORKER)
Image_LoadHiResTextureWorker(tex, NULL, 0, 0);
else
COM_AddWork(1, Image_LoadHiResTextureWorker, tex, NULL, 0, 0);
return tex;
}
void Image_Upload (texid_t tex, uploadfmt_t fmt, void *data, void *palette, int width, int height, unsigned int flags)
{
struct pendingtextureinfo mips;
mips.extrafree = NULL;
mips.type = (flags & IF_3DMAP)?PTI_3D:PTI_2D;
if (!Image_GenMip0(&mips, flags, data, palette, width, height, fmt, false))
return;
Image_GenerateMips(&mips, flags);
Image_ChangeFormat(&mips, fmt);
rf->IMG_LoadTextureMips(tex, &mips);
tex->status = TEX_LOADED;
}
typedef struct
{
char *name;
char *legacyname;
int minimize, minmip, maximize;
} texmode_t;
static texmode_t texmodes[] = {
{"n", "GL_NEAREST", 0, -1, 0},
{"l", "GL_LINEAR", 1, -1, 1},
{"nn", "GL_NEAREST_MIPMAP_NEAREST", 0, 0, 0},
{"ln", "GL_LINEAR_MIPMAP_NEAREST", 1, 0, 1},
{"nl", "GL_NEAREST_MIPMAP_LINEAR", 0, 1, 0},
{"ll", "GL_LINEAR_MIPMAP_LINEAR", 1, 1, 1},
//more explicit names
{"n.n", NULL, 0, -1, 0},
{"l.l", NULL, 1, -1, 1},
{"nnn", NULL, 0, 0, 0},
{"lnl", NULL, 1, 0, 1},
{"nln", NULL, 0, 1, 0},
{"lll", NULL, 1, 1, 1},
//inverted mag filters
{"n.l", NULL, 0, -1, 1},
{"l.n", NULL, 1, -1, 0},
{"nnl", NULL, 0, 0, 1},
{"lnn", NULL, 1, 0, 0},
{"nll", NULL, 0, 1, 1},
{"lln", NULL, 1, 1, 0}
};
static void Image_ParseTextureMode(char *cvarname, char *modename, int modes[3])
{
int i;
modes[0] = 1;
modes[1] = 0;
modes[2] = 1;
for (i = 0; i < sizeof(texmodes) / sizeof(texmodes[0]); i++)
{
if (!Q_strcasecmp(modename, texmodes[i].name) || (texmodes[i].legacyname && !Q_strcasecmp(modename, texmodes[i].legacyname)))
{
modes[0] = texmodes[i].minimize;
modes[1] = texmodes[i].minmip;
modes[2] = texmodes[i].maximize;
return;
}
}
Con_Printf("%s: mode %s was not recognised\n", cvarname, modename);
}
void Image_TextureMode_Callback (struct cvar_s *var, char *oldvalue)
{
int mip[3]={1,0,1}, pic[3]={1,-1,1}, mipcap[2] = {0, 1000};
float anis = 1;
char *s;
extern cvar_t gl_texturemode, gl_texturemode2d, gl_texture_anisotropic_filtering, gl_mipcap;
Image_ParseTextureMode(gl_texturemode.name, gl_texturemode.string, mip);
Image_ParseTextureMode(gl_texturemode2d.name, gl_texturemode2d.string, pic);
anis = gl_texture_anisotropic_filtering.value;
//parse d_mipcap (two values, nearest furthest)
s = COM_Parse(gl_mipcap.string);
mipcap[0] = *com_token?atoi(com_token):0;
// if (mipcap[0] > 3) /*cap it to 3, so no 16*16 textures get bugged*/
// mipcap[0] = 3;
s = COM_Parse(s);
mipcap[1] = *com_token?atoi(com_token):1000;
if (mipcap[1] < mipcap[0])
mipcap[1] = mipcap[0];
if (rf && rf->IMG_UpdateFiltering)
rf->IMG_UpdateFiltering(imagelist, mip, pic, mipcap, anis);
}
//may not create any images yet.
void Image_Init(void)
{
memset(imagetablebuckets, 0, sizeof(imagetablebuckets));
Hash_InitTable(&imagetable, sizeof(imagetablebuckets)/sizeof(imagetablebuckets[0]), imagetablebuckets);
}
//destroys all textures
void Image_Shutdown(void)
{
image_t *tex;
int i = 0, j = 0;
while (imagelist)
{
tex = imagelist;
if (*tex->ident)
Hash_RemoveData(&imagetable, tex->ident, tex);
imagelist = tex->next;
if (tex->status == TEX_LOADED)
j++;
rf->IMG_DestroyTexture(tex);
Z_Free(tex);
i++;
}
if (i)
Con_Printf("Destroyed %i/%i images\n", j, i);
}
//load the named file, without failing.
texid_t R_LoadHiResTexture(const char *name, const char *subpath, unsigned int flags)
{
char nicename[MAX_QPATH], *data;
if (!*name)
return r_nulltex;
Q_strncpyz(nicename, name, sizeof(nicename));
while((data = strchr(nicename, '*')))
*data = '#';
return Image_GetTexture(nicename, subpath, flags, NULL, NULL, 0, 0, TF_INVALID); //queues the texture creation.
}
//attempt to load the named texture
//will not load external textures if gl_load24bit is set (failing instantly if its just going to fail later on anyway)
//the specified data will be used if the high-res image is blocked/not found.
texid_t R_LoadReplacementTexture(const char *name, const char *subpath, unsigned int flags, void *lowres, int lowreswidth, int lowresheight, uploadfmt_t format)
{
char nicename[MAX_QPATH], *data;
if (!*name)
return r_nulltex;
if (!gl_load24bit.ival && !lowres)
return r_nulltex;
Q_strncpyz(nicename, name, sizeof(nicename));
while((data = strchr(nicename, '*')))
*data = '#';
return Image_GetTexture(nicename, subpath, flags, lowres, NULL, lowreswidth, lowresheight, format); //queues the texture creation.
}
#ifdef RTLIGHTS
void R_LoadNumberedLightTexture(dlight_t *dl, int cubetexnum)
{
Q_snprintfz(dl->cubemapname, sizeof(dl->cubemapname), "cubemaps/%i", cubetexnum);
if (!gl_load24bit.ival)
dl->cubetexture = r_nulltex;
else
dl->cubetexture = Image_GetTexture(dl->cubemapname, NULL, IF_CUBEMAP, NULL, NULL, 0, 0, TF_INVALID);
}
#endif
#if 0
extern cvar_t r_shadow_bumpscale_bumpmap;
texid_t R_LoadBumpmapTexture(const char *name, const char *subpath)
{
char *buf, *data;
texid_t tex;
// int h;
char fname[MAX_QPATH], nicename[MAX_QPATH];
qboolean hasalpha;
static char *extensions[] =
{//reverse order of preference - (match commas with optional file types)
".tga",
""
};
int i, e;
TRACE(("dbg: Mod_LoadBumpmapTexture: texture %s\n", name));
COM_StripExtension(name, nicename, sizeof(nicename));
tex = R_FindTexture(name, 0);
if (TEXVALID(tex)) //don't bother if it already exists.
{
image_width = tex->width;
image_height = tex->height;
return tex;
}
tex = R_LoadCompressed(name);
if (TEXVALID(tex))
return tex;
if (strchr(name, '/')) //never look in a root dir for the pic
i = 0;
else
i = 1;
//should write this nicer.
for (; i < sizeof(tex_path)/sizeof(tex_path[0]); i++)
{
if (!tex_path[i].enabled)
continue;
for (e = sizeof(extensions)/sizeof(char *)-1; e >=0 ; e--)
{
size_t fsize;
if (tex_path[i].args >= 3)
{
if (!subpath)
continue;
snprintf(fname, sizeof(fname)-1, tex_path[i].path, subpath, nicename, extensions[e]);
}
else
snprintf(fname, sizeof(fname)-1, tex_path[i].path, nicename, extensions[e]);
TRACE(("dbg: Mod_LoadBumpmapTexture: opening %s\n", fname));
if ((buf = COM_LoadFile (fname, 5, &fsize)))
{
if ((data = ReadTargaFile(buf, fsize, &image_width, &image_height, &hasalpha, 2))) //Only load a greyscale image.
{
TRACE(("dbg: Mod_LoadBumpmapTexture: tga %s loaded\n", name));
TEXASSIGNF(tex, R_LoadTexture8Bump(name, image_width, image_height, data, IF_NOALPHA|IF_NOGAMMA));
BZ_Free(data);
}
else
{
BZ_Free(buf);
continue;
}
BZ_Free(buf);
return tex;
}
}
}
return r_nulltex;
}
#endif
// ocrana led functions
static int ledcolors[8][3] =
{
// green
{ 0, 255, 0 },
{ 0, 127, 0 },
// red
{ 255, 0, 0 },
{ 127, 0, 0 },
// yellow
{ 255, 255, 0 },
{ 127, 127, 0 },
// blue
{ 0, 0, 255 },
{ 0, 0, 127 }
};
void AddOcranaLEDsIndexed (qbyte *image, int h, int w)
{
int tridx[8]; // transition indexes
qbyte *point;
int i, idx, x, y, rs;
int r, g, b, rd, gd, bd;
// calc row size, character size
rs = w;
h /= 16;
w /= 16;
// generate palettes
for (i = 0; i < 4; i++)
{
// get palette
r = ledcolors[i*2][0];
g = ledcolors[i*2][1];
b = ledcolors[i*2][2];
rd = (r - ledcolors[i*2+1][0]) / 8;
gd = (g - ledcolors[i*2+1][1]) / 8;
bd = (b - ledcolors[i*2+1][2]) / 8;
for (idx = 0; idx < 8; idx++)
{
tridx[idx] = GetPaletteIndex(r, g, b);
r -= rd;
g -= gd;
b -= bd;
}
// generate LED into image
b = (w * w + h * h) / 16;
if (b < 1)
b = 1;
rd = w + 1;
gd = h + 1;
point = image + (8 * rs * h) + ((6 + i) * w);
for (y = 1; y <= h; y++)
{
for (x = 1; x <= w; x++)
{
r = rd - (x*2); r *= r;
g = gd - (y*2); g *= g;
idx = (r + g) / b;
if (idx > 7)
*point++ = 0;
else
*point++ = tridx[idx];
}
point += rs - w;
}
}
}
#endif
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