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fteqw/engine/client/image.c
Spoike cd9439c5b7 fixed it so pngs load again. 
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@230 fc73d0e0-1445-4013-8a0c-d673dee63da5
2004-09-22 15:23:31 +00:00

1687 lines
39 KiB
C
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#include "quakedef.h"
#ifdef RGLQUAKE
#include "glquake.h"
#endif
cvar_t r_dodgytgafiles = {"r_dodgytgafiles", "0"}; //Certain tgas are upside down.
//This is due to a bug in tenebrae.
//(normally) the textures are actually the right way around.
//but some people have gone and 'fixed' those broken ones by flipping.
//these images appear upside down in any editor but correct in tenebrae
//set this to 1 to emulate tenebrae's bug.
#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, numPixels;
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)
Sys_Error ("LoadGrayTGA: Only type 1 and 3 greyscale targa images are understood.\n");
if (tgahead->version==1 && tgahead->bpp != 8 &&
tgahead->cm_size != 24 && tgahead->cm_len != 256)
Sys_Error ("LoadGrayTGA: Strange palette type\n");
columns = tgahead->width;
rows = tgahead->height;
numPixels = columns * rows;
flipped = !((tgahead->attribs & 0x20) >> 5);
if (r_dodgytgafiles.value)
flipped = true;
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, int asgrey)
{
//the eye doesn't see different colours in the same proportion.
//must add to slightly less than 1
#define NTSC_RED 0.299
#define NTSC_GREEN 0.587
#define NTSC_BLUE 0.114
char *data;
qboolean flipped;
tgaheader_t tgaheader;
if (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];
flipped = !((tgaheader.attribs & 0x20) >> 5);
if (r_dodgytgafiles.value)
flipped = true;
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)
{
#undef getc
#define getc(x) *data++
unsigned 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;
if (tgaheader.bpp == 8) return NULL;
for(row=rows-1; row>=0; row--)
{
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=getc(fin);
packetSize = 1 + (packetHeader & 0x7f);
if (packetHeader & 0x80)
{ // run-length packet
switch (tgaheader.bpp)
{
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 = getc(fin);
green = getc(fin);
red = getc(fin);
alphabyte = 255;
break;
case 32:
blue = getc(fin);
green = getc(fin);
red = getc(fin);
alphabyte = getc(fin);
break;
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;
pixbuf = targa_rgba + 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;
pixbuf = targa_rgba + row*columns;
}
}
}
}
else
{ // non run-length packet
if (!asgrey) //keep colours
{
for(j=0;j<packetSize;j++)
{
switch (tgaheader.bpp)
{
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 = getc(fin);
green = getc(fin);
red = getc(fin);
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = 255;
break;
case 32:
blue = getc(fin);
green = getc(fin);
red = getc(fin);
alphabyte = getc(fin);
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alphabyte;
break;
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;
pixbuf = targa_rgba + row*columns*4;
}
}
}
else //convert to grey
{
for(j=0;j<packetSize;j++)
{
switch (tgaheader.bpp)
{
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 = getc(fin);
green = getc(fin);
red = getc(fin);
*pixbuf++ = red*NTSC_RED + green*NTSC_GREEN + blue*NTSC_BLUE;
break;
case 32:
blue = getc(fin);
green = getc(fin);
red = getc(fin);
alphabyte = getc(fin);
*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;
pixbuf = targa_rgba + row*columns;
}
}
}
}
}
}
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;
//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;
}
return NULL;
}
#ifdef AVAIL_PNGLIB
#ifndef AVAIL_ZLIB
#error PNGLIB requires ZLIB
#endif
#undef channels
#ifndef PNG_SUCKS_WITH_SETJMP
#if defined(MINGW)
#error no pngs with mingw
#elif defined(_WIN32)
#include "png.h"
#pragma comment(lib, "../libs/libpng.lib")
#else
#include <png.h>
#endif
#endif
#if defined(MINGW) //hehehe... add annother symbol so the statically linked cygwin libpng can link
#undef setjmp
int setjmp (jmp_buf jb)
{
return _setjmp(jb);
}
#endif
typedef struct {
char *data;
int readposition;
int filelen;
} pngreadinfo_t;
void PNGAPI png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length);
void VARGS readpngdata(png_structp png_ptr,png_bytep data,png_size_t len)
{
pngreadinfo_t *ri = (pngreadinfo_t*)png_ptr->io_ptr;
if (ri->readposition+len > ri->filelen)
{
png_error(png_ptr, "unexpected eof");
return;
}
memcpy(data, &ri->data[ri->readposition], len);
ri->readposition+=len;
}
qbyte *png_rgba;
qbyte *ReadPNGFile(qbyte *buf, int length, int *width, int *height)
{
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;
memcpy(header, buf, 8);
if (png_sig_cmp(header, 0, 8))
{
return (png_rgba = NULL);
}
if (!(png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL)))
{
return (png_rgba = NULL);
}
if (!(pnginfo = png_create_info_struct(png))) {
png_destroy_read_struct(&png, &pnginfo, NULL);
return (png_rgba = NULL);
}
if (setjmp(png->jmpbuf))
{
error:
if (data)
BZ_Free(data);
if (rowpointers)
BZ_Free(rowpointers);
png_destroy_read_struct(&png, &pnginfo, NULL);
return (png_rgba = NULL);
}
ri.data=buf;
ri.readposition=8;
ri.filelen=length;
png_set_read_fn(png, &ri, readpngdata);
png_set_sig_bytes(png, 8);
png_read_info(png, pnginfo);
png_get_IHDR(png, pnginfo, (png_uint_32 *) width, (png_uint_32 *) height, &bitdepth, &colortype, &interlace, &compression, &filter);
if (colortype == PNG_COLOR_TYPE_PALETTE) {
png_set_palette_to_rgb(png);
png_set_filler(png, 255, PNG_FILLER_AFTER);
}
if (colortype == PNG_COLOR_TYPE_GRAY && bitdepth < 8)
png_set_gray_1_2_4_to_8(png);
if (png_get_valid( png, pnginfo, PNG_INFO_tRNS ))
png_set_tRNS_to_alpha(png);
if (bitdepth == 8 && colortype == PNG_COLOR_TYPE_RGB)
png_set_filler(png, 255, PNG_FILLER_AFTER);
if (colortype == PNG_COLOR_TYPE_GRAY || colortype == PNG_COLOR_TYPE_GRAY_ALPHA) {
png_set_gray_to_rgb( png );
png_set_filler(png, 255, PNG_FILLER_AFTER);
}
if (bitdepth < 8)
png_set_expand (png);
else if (bitdepth == 16)
png_set_strip_16(png);
png_read_update_info( png, pnginfo );
rowbytes = png_get_rowbytes( png, pnginfo );
bytesperpixel = png_get_channels( png, pnginfo );
bitdepth = png_get_bit_depth(png, pnginfo);
if (bitdepth != 8 || bytesperpixel != 4) {
Con_Printf ("Bad PNG color depth and/or bpp\n");
png_destroy_read_struct(&png, &pnginfo, NULL);
return (png_rgba = NULL);
}
data = BZF_Malloc(*height * rowbytes );
rowpointers = BZF_Malloc(*height * 4);
if (!data || !rowpointers)
goto error;
for (y = 0; y < *height; y++)
rowpointers[y] = data + y * rowbytes;
png_read_image(png, rowpointers);
png_read_end(png, NULL);
png_destroy_read_struct(&png, &pnginfo, NULL);
BZ_Free(rowpointers);
return (png_rgba = data);
}
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;
_snprintf (name, sizeof(name)-1, "%s/%s", com_gamedir, filename);
if (!(fp = fopen (name, "wb"))) {
COM_CreatePath (name);
if (!(fp = fopen (name, "wb")))
return false;
}
if (!(png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL))) {
fclose(fp);
return false;
}
if (!(info_ptr = png_create_info_struct(png_ptr))) {
png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
fclose(fp);
return false;
}
if (setjmp(png_ptr->jmpbuf)) {
png_destroy_write_struct(&png_ptr, &info_ptr);
fclose(fp);
return false;
}
png_init_io(png_ptr, fp);
png_set_compression_level(png_ptr, (compression*Z_BEST_COMPRESSION)/100);
png_set_IHDR(png_ptr, info_ptr, width, height, 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png_ptr, info_ptr);
row_pointers = BZ_Malloc (4 * height);
for (i = 0; i < height; i++)
row_pointers[height - i - 1] = pixels + i * width * 3;
png_write_image(png_ptr, row_pointers);
png_write_end(png_ptr, info_ptr);
BZ_Free(row_pointers);
png_destroy_write_struct(&png_ptr, &info_ptr);
fclose(fp);
return true;
}
#endif
#ifdef AVAIL_JPEGLIB
#if defined(MINGW)
#error no jpegs with mingw
#elif defined(_WIN32)
#define JPEG_API VARGS
#include "jpeglib.h"
#include "jerror.h"
#pragma comment(lib, "../libs/jpeg.lib")
#else
//#include <jinclude.h>
#include <jpeglib.h>
#include <jerror.h>
#endif
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 */
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(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)
{
}
GLOBAL(void)
jpeg_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;
src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */
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 */
/* Step 1: allocate and initialize JPEG decompression object */
/* We set up the normal JPEG error routines, then override error_exit. */
cinfo.err = jpeg_std_error(&jerr.pub);
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.
jpeg_destroy_decompress(&cinfo);
if (mem)
BZ_Free(mem);
return 0;
}
jpeg_create_decompress(&cinfo);
jpeg_mem_src(&cinfo, infile, length);
(void) jpeg_read_header(&cinfo, TRUE);
(void) jpeg_start_decompress(&cinfo);
if (cinfo.output_components!=3)
Sys_Error("Bad number of componants in jpeg");
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);
while (cinfo.output_scanline < cinfo.output_height) {
(void) jpeg_read_scanlines(&cinfo, buffer, 1);
in = buffer[0];
for (i = 0; i < cinfo.output_width; i++)
{//rgb to rgba
*out++ = *in++;
*out++ = *in++;
*out++ = *in++;
*out++ = 255;
}
}
(void) jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
*width = cinfo.output_width;
*height = cinfo.output_height;
return mem;
}
typedef struct {
struct jpeg_error_mgr pub;
jmp_buf setjmp_buffer;
} jpeg_error_mgr_wrapper;
METHODDEF(void) jpeg_error_exit (j_common_ptr cinfo) {
longjmp(((jpeg_error_mgr_wrapper *) cinfo->err)->setjmp_buffer, 1);
}
extern char com_basedir[];
void screenshotJPEG(char *filename, qbyte *screendata, int screenwidth, int screenheight) //input is rgb NOT rgba
{
char name[MAX_OSPATH];
qbyte *buffer;
FILE *outfile;
jpeg_error_mgr_wrapper jerr;
struct jpeg_compress_struct cinfo;
JSAMPROW row_pointer[1];
sprintf (name, "%s/%s", com_gamedir, filename);
if (!(outfile = fopen (name, "wb"))) {
COM_CreatePath (name);
if (!(outfile = fopen (name, "wb")))
Sys_Error ("Error opening %s", filename);
}
cinfo.err = jpeg_std_error(&jerr.pub);
jerr.pub.error_exit = jpeg_error_exit;
if (setjmp(jerr.setjmp_buffer)) {
jpeg_destroy_compress(&cinfo);
fclose(outfile);
unlink(name);
Con_Printf("Failed to create jpeg\n");
return;
}
jpeg_create_compress(&cinfo);
buffer = screendata;
jpeg_stdio_dest(&cinfo, outfile);
cinfo.image_width = screenwidth;
cinfo.image_height = screenheight;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
jpeg_set_quality (&cinfo, 75/*bound(0, (int) gl_image_jpeg_quality_level.value, 100)*/, true);
jpeg_start_compress(&cinfo, true);
while (cinfo.next_scanline < cinfo.image_height) {
*row_pointer = &buffer[(cinfo.image_height - cinfo.next_scanline - 1) * cinfo.image_width * 3];
jpeg_write_scanlines(&cinfo, row_pointer, 1);
}
jpeg_finish_compress(&cinfo);
fclose(outfile);
jpeg_destroy_compress(&cinfo);
Con_Printf ("Wrote %s\n", filename);
}
#endif
/*
==============
WritePCXfile
==============
*/
void WritePCXfile (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);
}
/*
============
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;
//
// parse the PCX file
//
pcx = (pcx_t *)buf;
if (pcx->manufacturer != 0x0a
|| pcx->version != 5
|| pcx->encoding != 1
|| pcx->bits_per_pixel != 8
|| pcx->xmax >= 1024
|| pcx->ymax >= 1024)
{
return NULL;
}
*width = pcx->xmax-pcx->xmin+1;
*height = pcx->ymax-pcx->ymin+1;
palette = buf + length-768;
data = (char *)(pcx+1);
count = (pcx->xmax+1) * (pcx->ymax+1);
pcx_rgb = BZ_Malloc( count * 4);
for (y=0 ; y<=pcx->ymax ; y++)
{
pix = pcx_rgb + 4*y*(pcx->xmax+1);
for (x=0 ; x<=pcx->xmax ; )
{
dataByte = *data;
data++;
if((dataByte & 0xC0) == 0xC0)
{
runLength = dataByte & 0x3F;
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[3] = 0;
pix += 4;
x++;
}
}
}
return pcx_rgb;
}
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
|| pcx->xmax >= 1024
|| 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, *in;
qbyte *data;
in = (bmpheader_t *)buf;
h.Type = LittleShort(in->Type);
if (h.Type != 'B' + ('M'<<8))
return NULL;
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/*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;
}*/
void BoostGamma(qbyte *rgba, int width, int height)
{
#if defined(RGLQUAKE)
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
}
#if defined(RGLQUAKE)
//returns r8g8b8a8
qbyte *Read32BitImageFile(qbyte *buf, int len, int *width, int *height)
{
qbyte *data;
if ((data = ReadTargaFile(buf, len, width, height, false)))
return data;
#ifdef AVAIL_PNGLIB
if ((buf[0] == 137 && buf[1] == 'P' && buf[2] == 'N' && buf[3] == 'G') && (data = ReadPNGFile(buf, com_filesize, width, height)))
return data;
#endif
#ifdef AVAIL_JPEGLIB
//jpeg jfif only.
if ((buf[0] == 0xff && buf[1] == 0xd8 && buf[2] == 0xff && buf[3] == 0xe0) && (data = ReadJPEGFile(buf, com_filesize, width, height)))
return data;
#endif
if ((data = ReadPCXFile(buf, com_filesize, width, height)))
return data;
if ((buf[0] == 'B' && buf[1] == 'M') && (data = ReadBMPFile(buf, com_filesize, width, height)))
return data;
return NULL;
}
int GL_LoadTexture8Bump (char *identifier, int width, int height, unsigned char *data, qboolean mipmap);
int image_width, image_height;
qbyte *COM_LoadFile (char *path, int usehunk);
int Mod_LoadHiResTexture(char *name, qboolean mipmap, qboolean alpha, qboolean colouradjust)
{
qboolean alphaed;
char *buf, *data;
int len;
// int h;
char fname[MAX_QPATH], nicename[MAX_QPATH];
static char *extensions[] = {//reverse order of preference - (match commas with optional file types)
".pcx", //pcxes are the origional gamedata of q2. So we don't want them to override pngs.
#ifdef AVAIL_JPEGLIB
".jpg",
#endif
".bmp",
#ifdef AVAIL_PNGLIB
".png",
#endif
".tga",
""
};
static char *path[] ={
"%s%s",
"textures/%s/%s%s", //this is special... It's special name is Mr Ben Ian Graham Hacksworth.
"textures/%s%s",
"override/%s%s",
"pics/%s%s", //quake2 sort of path.
"progs/%s%s"
};
int i, e;
COM_StripExtension(name, nicename);
while((data = strchr(nicename, '*')))
{
*data = '#';
}
if ((len = GL_FindTexture(name))!=-1) //don't bother if it already exists.
return len;
if ((len = GL_LoadCompressed(name)))
return len;
if (strchr(name, '/')) //never look in a root dir for the pic
i = 0;
else
i = 1;
//should write this nicer.
for (; i < sizeof(path)/sizeof(char *); i++)
{
for (e = sizeof(extensions)/sizeof(char *)-1; e >=0 ; e--)
{
if (i == 1)
{
char map [MAX_QPATH*2];
#ifndef CLIENTONLY
if (*sv.name) //server loads before the client knows what's happening. I suppose we could have some sort of param...
Q_strncpyz(map, sv.name, sizeof(map));
else
#endif
COM_FileBase(cl.model_name[1], map);
_snprintf(fname, sizeof(fname)-1, path[i], map, nicename, extensions[e]);
}
else
_snprintf(fname, sizeof(fname)-1, path[i], nicename, extensions[e]);
if ((buf = COM_LoadFile (fname, 5)))
{
if ((data = Read32BitImageFile(buf, com_filesize, &image_width, &image_height)))
{
BoostGamma(data, image_width, image_height);
len = GL_LoadTexture32 (name, image_width, image_height, (unsigned*)data, mipmap, alpha);
BZ_Free(data);
BZ_Free(buf);
return len;
}
else
{
BZ_Free(buf);
continue;
}
}
}
}
//now look in wad files. (halflife compatability)
data = W_GetTexture(name, &image_width, &image_height, &alphaed);
if (data)
return GL_LoadTexture32 (name, image_width, image_height, (unsigned*)data, mipmap, alphaed);
return 0;
}
int Mod_LoadReplacementTexture(char *name, qboolean mipmap, qboolean alpha)
{
if (!gl_load24bit.value)
return 0;
return Mod_LoadHiResTexture(name, mipmap, alpha, true);
}
int Mod_LoadBumpmapTexture(char *name)
{
char *buf, *data;
int len;
// int h;
char fname[MAX_QPATH], nicename[MAX_QPATH];
static char *extensions[] = {//reverse order of preference - (match commas with optional file types)
".tga",
""
};
static char *path[] ={
"%s%s",
"textures/%s/%s%s", //this is special... It's special name is Mr Ben Ian Graham Hacksworth.
"textures/%s%s",
"override/%s%s",
"pics/%s%s", //quake2 sort of path.
"progs/%s%s"
};
int i, e;
COM_StripExtension(name, nicename);
if ((len = GL_FindTexture(name))!=-1) //don't bother if it already exists.
return len;
if ((len = GL_LoadCompressed(name)))
return len;
if (strchr(name, '/')) //never look in a root dir for the pic
i = 0;
else
i = 1;
//should write this nicer.
for (; i < sizeof(path)/sizeof(char *); i++)
{
for (e = sizeof(extensions)/sizeof(char *)-1; e >=0 ; e--)
{
if (i == 1)
{
char map [MAX_QPATH*2];
#ifndef CLIENTONLY
if (*sv.name) //server loads before the client knows what's happening. I suppose we could have some sort of param...
Q_strncpyz(map, sv.name, sizeof(map));
else
#endif
COM_FileBase(cl.model_name[1], map);
_snprintf(fname, sizeof(fname)-1, path[i], map, nicename, extensions[e]);
}
else
_snprintf(fname, sizeof(fname)-1, path[i], nicename, extensions[e]);
if ((buf = COM_LoadFile (fname, 5)))
{
if ((data = ReadTargaFile(buf, com_filesize, &image_width, &image_height, 2))) //Only load a greyscale image.
{
len = GL_LoadTexture8Bump(name, image_width, image_height, data, true);
BZ_Free(data);
}
else
{
BZ_Free(buf);
continue;
}
BZ_Free(buf);
return len;
}
}
}
return 0;
}
#endif
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