mirror of
https://github.com/nzp-team/dquakeplus.git
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1102 lines
25 KiB
C++
1102 lines
25 KiB
C++
/*
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Copyright (C) 2008-2009 Crow_bar.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <png.h>
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extern "C"
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{
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#include <jpeglib.h>
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#include "../quakedef.h"
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}
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cvar_t jpeg_compression_level = {"jpeg_compression_level", "75"};
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int image_width;
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int image_height;
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static int image_palette_type = 0;
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static byte image_palette[1024];
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#define IMAGE_MAX_DIMENSIONS 4096
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/*
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=============
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LoadJPG
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=============
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*/
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byte *LoadJPG (FILE *fin, int matchwidth, int matchheight)
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{
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int i, row_stride;
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byte *data, *scanline, *p;
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struct jpeg_decompress_struct cinfo;
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struct jpeg_error_mgr jerr;
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cinfo.err = jpeg_std_error (&jerr);
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jpeg_create_decompress (&cinfo);
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jpeg_stdio_src (&cinfo, fin);
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jpeg_read_header (&cinfo, true);
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jpeg_start_decompress (&cinfo);
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if (cinfo.image_width > IMAGE_MAX_DIMENSIONS || cinfo.image_height > IMAGE_MAX_DIMENSIONS)
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{
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return NULL;
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}
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if ((matchwidth && cinfo.image_width != matchwidth) || (matchheight && cinfo.image_height != matchheight))
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{
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jpeg_finish_decompress (&cinfo);
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jpeg_destroy_decompress (&cinfo);
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return NULL;
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}
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Con_Printf("JPG: Allocating data\n");
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data = static_cast<byte*>(Hunk_Alloc(cinfo.image_width * cinfo.image_height * 4));
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row_stride = cinfo.output_width * cinfo.output_components;
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scanline = static_cast<byte*>(Hunk_Alloc(row_stride));
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Con_Printf("JPG: done allocating data\n");
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p = data;
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while (cinfo.output_scanline < cinfo.output_height)
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{
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jpeg_read_scanlines (&cinfo, &scanline, 1);
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// convert the image to RGBA
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switch (cinfo.output_components)
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{
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// RGB images
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case 3:
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for (i=0 ; i<row_stride ; )
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{
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*p++ = scanline[i++];
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*p++ = scanline[i++];
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*p++ = scanline[i++];
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*p++ = 255;
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}
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break;
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// greyscale images (default to it, just in case)
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case 1:
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default:
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for (i=0 ; i<row_stride ; i++)
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{
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*p++ = scanline[i];
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*p++ = scanline[i];
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*p++ = scanline[i];
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*p++ = 255;
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}
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break;
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}
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}
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image_width = cinfo.image_width;
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image_height = cinfo.image_height;
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jpeg_finish_decompress (&cinfo);
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jpeg_destroy_decompress (&cinfo);
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fclose (fin);
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return data;
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}
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/*
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=============
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Image_WriteJPEG
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=============
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*/
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int Image_WriteJPEG (char *filename, int compression, byte *pixels, int width, int height)
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{
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char name[MAX_OSPATH];
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byte *scanline;
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FILE *fout;
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struct jpeg_compress_struct cinfo;
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struct jpeg_error_mgr jerr;
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Q_snprintfz (name, MAX_OSPATH, "%s/%s", com_gamedir, filename);
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if (!(fout = fopen(name, "wb")))
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{
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COM_CreatePath (name);
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if (!(fout = fopen(name, "wb")))
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return false;
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}
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cinfo.err = jpeg_std_error (&jerr);
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jpeg_create_compress (&cinfo);
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jpeg_stdio_dest (&cinfo, fout);
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cinfo.image_width = abs(width);
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cinfo.image_height = height;
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cinfo.input_components = 3;
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cinfo.in_color_space = JCS_RGB;
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jpeg_set_defaults (&cinfo);
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jpeg_set_quality (&cinfo, bound(0, compression, 100), true);
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jpeg_start_compress (&cinfo, true);
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while (cinfo.next_scanline < height)
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{
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scanline = &pixels[cinfo.next_scanline*width*3];
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jpeg_write_scanlines (&cinfo, &scanline, 1);
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}
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jpeg_finish_compress (&cinfo);
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jpeg_destroy_compress (&cinfo);
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fclose (fout);
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return true;
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}
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/*
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=================================================================
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PCX Loading
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mem fix by Crow_bar.
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=================================================================
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*/
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typedef struct
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{
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char manufacturer;
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char version;
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char encoding;
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char bits_per_pixel;
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unsigned short xmin,ymin,xmax,ymax;
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unsigned short hres,vres;
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unsigned char palette[48];
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char reserved;
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char color_planes;
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unsigned short bytes_per_line;
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unsigned short palette_type;
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char filler[58];
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unsigned char data; // unbounded
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} pcx_t;
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byte* LoadPCX (FILE *f, int matchwidth, int matchheight)
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{
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pcx_t *pcx, pcxbuf;
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byte palette[768];
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byte *pix, *image_rgba;
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int x, y;
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int dataByte, runLength;
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int count;
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//
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// parse the PCX file
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//
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fread (&pcxbuf, 1, sizeof(pcxbuf), f);
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pcx = &pcxbuf;
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if (pcx->manufacturer != 0x0a
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|| pcx->version != 5
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|| pcx->encoding != 1
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|| pcx->bits_per_pixel != 8
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|| pcx->xmax >= 320
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|| pcx->ymax >= 256)
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{
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Con_Printf ("Bad pcx file\n");
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return NULL;
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}
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if (matchwidth && (pcx->xmax+1) != matchwidth)
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{
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fclose (f);
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return NULL;
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}
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if (matchheight && (pcx->ymax+1) != matchheight)
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{
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fclose (f);
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return NULL;
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}
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// seek to palette
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fseek (f, -768, SEEK_END);
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fread (palette, 1, 768, f);
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fseek (f, sizeof(pcxbuf) - 4, SEEK_SET);
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count = (pcx->xmax+1) * (pcx->ymax+1);
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image_rgba = static_cast<byte*>(malloc( count ));
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for (y=0 ; y<=pcx->ymax ; y++)
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{
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pix = image_rgba + y * (pcx->xmax+1);
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for (x=0 ; x<=pcx->xmax ; ) // muff - fixed - was referencing ymax
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{
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dataByte = fgetc(f);
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if((dataByte & 0xC0) == 0xC0)
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{
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runLength = dataByte & 0x3F;
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dataByte = fgetc(f);
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}
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else
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runLength = 1;
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while(runLength-- > 0)
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pix[x++] = dataByte;
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}
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}
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image_width = pcx->xmax+1;
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image_height = pcx->ymax+1;
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memcpy_vfpu(image_palette, palette, sizeof(palette));
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image_palette_type = PAL_RGB;
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fclose (f);
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return image_rgba;
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}
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/*
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================
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LoadWal
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================
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*/
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typedef struct miptexq2_s
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{
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char name[32];
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unsigned width, height;
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unsigned offsets[4]; // four mip maps stored
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char animname[32]; // next frame in animation chain
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int flags;
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int contents;
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int value;
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} miptexq2_t;
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byte *LoadWAL (char *name)
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{
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miptexq2_t *mt;
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int width, height, ofs, size;
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byte *data;
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mt = (miptexq2_t*)COM_LoadFile (name, 0);
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if (!mt)
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{
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return NULL;
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}
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width = LittleLong (mt->width);
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height = LittleLong (mt->height);
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ofs = LittleLong (mt->offsets[0]);
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size = width * height;
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data = static_cast<byte*>(malloc(size));
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memcpy_vfpu(data, (byte *)mt + ofs, size);
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image_palette_type = PAL_Q2;
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Z_Free(mt);
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return data;
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}
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/*
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=========================================================
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Targa
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=========================================================
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*/
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#define TGA_MAXCOLORS 16384
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/* Definitions for image types. */
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#define TGA_Null 0 /* no image data */
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#define TGA_Map 1 /* Uncompressed, color-mapped images. */
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#define TGA_RGB 2 /* Uncompressed, RGB images. */
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#define TGA_Mono 3 /* Uncompressed, black and white images. */
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#define TGA_RLEMap 9 /* Runlength encoded color-mapped images. */
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#define TGA_RLERGB 10 /* Runlength encoded RGB images. */
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#define TGA_RLEMono 11 /* Compressed, black and white images. */
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#define TGA_CompMap 32 /* Compressed color-mapped data, using Huffman, Delta, and runlength encoding. */
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#define TGA_CompMap4 33 /* Compressed color-mapped data, using Huffman, Delta, and runlength encoding. 4-pass quadtree-type process. */
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/* Definitions for interleave flag. */
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#define TGA_IL_None 0 /* non-interleaved. */
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#define TGA_IL_Two 1 /* two-way (even/odd) interleaving */
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#define TGA_IL_Four 2 /* four way interleaving */
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#define TGA_IL_Reserved 3 /* reserved */
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/* Definitions for origin flag */
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#define TGA_O_UPPER 0 /* Origin in lower left-hand corner. */
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#define TGA_O_LOWER 1 /* Origin in upper left-hand corner. */
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typedef struct _TargaHeader
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{
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unsigned char id_length, colormap_type, image_type;
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unsigned short colormap_index, colormap_length;
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unsigned char colormap_size;
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unsigned short x_origin, y_origin, width, height;
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unsigned char pixel_size, attributes;
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} TargaHeader;
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int fgetLittleShort (FILE *f)
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{
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byte b1, b2;
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b1 = fgetc(f);
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b2 = fgetc(f);
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return (short)(b1 + b2*256);
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}
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int fgetLittleLong (FILE *f)
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{
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byte b1, b2, b3, b4;
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b1 = fgetc(f);
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b2 = fgetc(f);
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b3 = fgetc(f);
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b4 = fgetc(f);
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return b1 + (b2<<8) + (b3<<16) + (b4<<24);
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}
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/*
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=============
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LoadTGA
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=============
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*/
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byte *LoadTGA (FILE *fin, int matchwidth, int matchheight)
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{
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int w, h, x, y, realrow, truerow, baserow, i, temp1, temp2, pixel_size, map_idx;
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int RLE_count, RLE_flag, size, interleave, origin;
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bool mapped, rlencoded;
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byte *data, *dst, r, g, b, a, j, k, l, *ColorMap;
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TargaHeader header;
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header.id_length = fgetc (fin);
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header.colormap_type = fgetc (fin);
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header.image_type = fgetc (fin);
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header.colormap_index = fgetLittleShort (fin);
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header.colormap_length = fgetLittleShort (fin);
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header.colormap_size = fgetc (fin);
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header.x_origin = fgetLittleShort (fin);
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header.y_origin = fgetLittleShort (fin);
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header.width = fgetLittleShort (fin);
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header.height = fgetLittleShort (fin);
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header.pixel_size = fgetc (fin);
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header.attributes = fgetc (fin);
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if (header.width > IMAGE_MAX_DIMENSIONS || header.height > IMAGE_MAX_DIMENSIONS)
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{
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Con_DPrintf ("TGA image %s exceeds maximum supported dimensions\n");
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fclose (fin);
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return NULL;
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}
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if ((matchwidth && header.width != matchwidth) || (matchheight && header.height != matchheight))
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{
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fclose (fin);
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return NULL;
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}
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if (header.id_length != 0)
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fseek (fin, header.id_length, SEEK_CUR);
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/* validate TGA type */
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switch (header.image_type)
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{
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case TGA_Map:
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case TGA_RGB:
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case TGA_Mono:
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case TGA_RLEMap:
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case TGA_RLERGB:
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case TGA_RLEMono:
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break;
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default:
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Con_DPrintf ("Unsupported TGA image %s: Only type 1 (map), 2 (RGB), 3 (mono), 9 (RLEmap), 10 (RLERGB), 11 (RLEmono) TGA images supported\n");
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fclose (fin);
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return NULL;
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}
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/* validate color depth */
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switch (header.pixel_size)
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{
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case 8:
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case 15:
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case 16:
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case 24:
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case 32:
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break;
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default:
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Con_DPrintf ("Unsupported TGA image %s: Only 8, 15, 16, 24 or 32 bit images (with colormaps) supported\n");
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fclose (fin);
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return NULL;
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}
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r = g = b = a = l = 0;
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/* if required, read the color map information. */
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ColorMap = NULL;
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mapped = (header.image_type == TGA_Map || header.image_type == TGA_RLEMap) && header.colormap_type == 1;
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if (mapped)
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{
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/* validate colormap size */
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switch (header.colormap_size)
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{
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case 8:
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case 15:
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case 16:
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case 32:
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case 24:
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break;
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default:
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Con_DPrintf ("Unsupported TGA image %s: Only 8, 15, 16, 24 or 32 bit colormaps supported\n");
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fclose (fin);
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return NULL;
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}
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temp1 = header.colormap_index;
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temp2 = header.colormap_length;
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if ((temp1 + temp2 + 1) >= TGA_MAXCOLORS)
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{
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fclose (fin);
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return NULL;
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}
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ColorMap = static_cast<byte*>(malloc (TGA_MAXCOLORS * 4));
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map_idx = 0;
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for (i = temp1 ; i < temp1 + temp2 ; ++i, map_idx += 4)
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{
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/* read appropriate number of bytes, break into rgb & put in map. */
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switch (header.colormap_size)
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{
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case 8: /* grey scale, read and triplicate. */
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r = g = b = getc (fin);
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a = 255;
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break;
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case 15: /* 5 bits each of red green and blue. */
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/* watch byte order. */
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j = getc (fin);
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k = getc (fin);
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l = ((unsigned int)k << 8) + j;
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r = (byte)(((k & 0x7C) >> 2) << 3);
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g = (byte)((((k & 0x03) << 3) + ((j & 0xE0) >> 5)) << 3);
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b = (byte)((j & 0x1F) << 3);
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a = 255;
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break;
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case 16: /* 5 bits each of red green and blue, 1 alpha bit. */
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/* watch byte order. */
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j = getc (fin);
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k = getc (fin);
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l = ((unsigned int)k << 8) + j;
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r = (byte)(((k & 0x7C) >> 2) << 3);
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g = (byte)((((k & 0x03) << 3) + ((j & 0xE0) >> 5)) << 3);
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b = (byte)((j & 0x1F) << 3);
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a = (k & 0x80) ? 255 : 0;
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break;
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case 24: /* 8 bits each of blue, green and red. */
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b = getc (fin);
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g = getc (fin);
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r = getc (fin);
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a = 255;
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l = 0;
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break;
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case 32: /* 8 bits each of blue, green, red and alpha. */
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b = getc (fin);
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g = getc (fin);
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r = getc (fin);
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a = getc (fin);
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l = 0;
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break;
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}
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ColorMap[map_idx+0] = r;
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ColorMap[map_idx+1] = g;
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ColorMap[map_idx+2] = b;
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ColorMap[map_idx+3] = a;
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}
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}
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/* check run-length encoding. */
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rlencoded = (header.image_type == TGA_RLEMap || header.image_type == TGA_RLERGB || header.image_type == TGA_RLEMono);
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RLE_count = RLE_flag = 0;
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image_width = w = header.width;
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image_height = h = header.height;
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size = w * h * 4;
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data = static_cast<byte*>(calloc (size, 1));
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|
|
/* read the Targa file body and convert to portable format. */
|
|
pixel_size = header.pixel_size;
|
|
origin = (header.attributes & 0x20) >> 5;
|
|
interleave = (header.attributes & 0xC0) >> 6;
|
|
truerow = baserow = 0;
|
|
for (y=0 ; y<h ; y++)
|
|
{
|
|
realrow = truerow;
|
|
if (origin == TGA_O_UPPER)
|
|
realrow = h - realrow - 1;
|
|
|
|
dst = data + realrow * w * 4;
|
|
|
|
for (x=0 ; x<w ; x++)
|
|
{
|
|
/* check if run length encoded. */
|
|
if (rlencoded)
|
|
{
|
|
if (!RLE_count)
|
|
{
|
|
/* have to restart run. */
|
|
i = getc (fin);
|
|
RLE_flag = (i & 0x80);
|
|
if (!RLE_flag) // stream of unencoded pixels
|
|
RLE_count = i + 1;
|
|
else // single pixel replicated
|
|
RLE_count = i - 127;
|
|
/* decrement count & get pixel. */
|
|
--RLE_count;
|
|
}
|
|
else
|
|
{
|
|
/* have already read count & (at least) first pixel. */
|
|
--RLE_count;
|
|
if (RLE_flag)
|
|
/* replicated pixels. */
|
|
goto PixEncode;
|
|
}
|
|
}
|
|
|
|
/* read appropriate number of bytes, break into RGB. */
|
|
switch (pixel_size)
|
|
{
|
|
case 8: /* grey scale, read and triplicate. */
|
|
r = g = b = l = getc (fin);
|
|
a = 255;
|
|
break;
|
|
|
|
case 15: /* 5 bits each of red green and blue. */
|
|
/* watch byte order. */
|
|
j = getc (fin);
|
|
k = getc (fin);
|
|
l = ((unsigned int)k << 8) + j;
|
|
r = (byte)(((k & 0x7C) >> 2) << 3);
|
|
g = (byte)((((k & 0x03) << 3) + ((j & 0xE0) >> 5)) << 3);
|
|
b = (byte)((j & 0x1F) << 3);
|
|
a = 255;
|
|
break;
|
|
|
|
case 16: /* 5 bits each of red green and blue, 1 alpha bit. */
|
|
/* watch byte order. */
|
|
j = getc (fin);
|
|
k = getc (fin);
|
|
l = ((unsigned int)k << 8) + j;
|
|
r = (byte)(((k & 0x7C) >> 2) << 3);
|
|
g = (byte)((((k & 0x03) << 3) + ((j & 0xE0) >> 5)) << 3);
|
|
b = (byte)((j & 0x1F) << 3);
|
|
a = (k & 0x80) ? 255 : 0;
|
|
break;
|
|
|
|
case 24: /* 8 bits each of blue, green and red. */
|
|
b = getc (fin);
|
|
g = getc (fin);
|
|
r = getc (fin);
|
|
a = 255;
|
|
l = 0;
|
|
break;
|
|
|
|
case 32: /* 8 bits each of blue, green, red and alpha. */
|
|
b = getc (fin);
|
|
g = getc (fin);
|
|
r = getc (fin);
|
|
a = getc (fin);
|
|
l = 0;
|
|
break;
|
|
|
|
default:
|
|
Con_DPrintf ("Malformed TGA image: Illegal pixel_size '%d'\n", pixel_size);
|
|
fclose (fin);
|
|
free (data);
|
|
if (mapped)
|
|
free (ColorMap);
|
|
return NULL;
|
|
}
|
|
|
|
PixEncode:
|
|
if (mapped)
|
|
{
|
|
map_idx = l * 4;
|
|
*dst++ = ColorMap[map_idx+0];
|
|
*dst++ = ColorMap[map_idx+1];
|
|
*dst++ = ColorMap[map_idx+2];
|
|
*dst++ = ColorMap[map_idx+3];
|
|
}
|
|
else
|
|
{
|
|
*dst++ = r;
|
|
*dst++ = g;
|
|
*dst++ = b;
|
|
*dst++ = a;
|
|
}
|
|
}
|
|
|
|
if (interleave == TGA_IL_Four)
|
|
truerow += 4;
|
|
else if (interleave == TGA_IL_Two)
|
|
truerow += 2;
|
|
else
|
|
truerow++;
|
|
if (truerow >= h)
|
|
truerow = ++baserow;
|
|
}
|
|
|
|
if (mapped)
|
|
free (ColorMap);
|
|
|
|
fclose (fin);
|
|
|
|
return data;
|
|
}
|
|
|
|
/*
|
|
=========================================================
|
|
|
|
PNG
|
|
|
|
=========================================================
|
|
*/
|
|
|
|
static void PNG_IO_user_read_data (png_structp png_ptr, png_bytep data, png_size_t length)
|
|
{
|
|
FILE *f = (FILE *)png_get_io_ptr(png_ptr);
|
|
|
|
fread (data, 1, length, f);
|
|
}
|
|
|
|
/*
|
|
static void PNG_IO_user_write_data (png_structp png_ptr, png_bytep data, png_size_t length)
|
|
{
|
|
FILE *f = (FILE *)png_get_io_ptr(png_ptr);
|
|
|
|
fwrite (data, 1, length, f);
|
|
}
|
|
|
|
static void PNG_IO_user_flush_data (png_structp png_ptr)
|
|
{
|
|
FILE *f = (FILE *)png_get_io_ptr(png_ptr);
|
|
|
|
fflush (f);
|
|
}
|
|
*/
|
|
|
|
/*
|
|
=============
|
|
LoadPNG
|
|
=============
|
|
*/
|
|
void* Hunk_AllocPNG(png_struct* tmp, unsigned int num_bytes)
|
|
{
|
|
void* ptr = Hunk_Alloc(num_bytes);
|
|
|
|
return ptr;
|
|
}
|
|
|
|
// Libpng requires a function for freeing memory, hunk gets free'd later so keep this empty.
|
|
void Hunk_FreePNG(png_struct* tmp, void* ptr)
|
|
{
|
|
return;
|
|
}
|
|
|
|
byte *LoadPNG (FILE *fin, int matchwidth, int matchheight)
|
|
{
|
|
int y, width, height, bitdepth, colortype;
|
|
int interlace, compression, filter, bytesperpixel;
|
|
byte header[8], **rowpointers, *data;
|
|
png_structp png_ptr;
|
|
png_infop pnginfo;
|
|
unsigned long rowbytes;
|
|
|
|
fread (header, 1, 8, fin);
|
|
|
|
if (png_sig_cmp(header, 0, 8))
|
|
{
|
|
Con_DPrintf ("Invalid PNG image\n");
|
|
fclose (fin);
|
|
return NULL;
|
|
}
|
|
|
|
if (!(png_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL, NULL, Hunk_AllocPNG, Hunk_FreePNG)))
|
|
{
|
|
fclose (fin);
|
|
return NULL;
|
|
}
|
|
|
|
if (!(pnginfo = png_create_info_struct(png_ptr)))
|
|
{
|
|
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
|
|
fclose (fin);
|
|
return NULL;
|
|
}
|
|
|
|
/* naievil -- invalid use of incomplete type
|
|
if (setjmp(png_ptr->jmpbuf))
|
|
{
|
|
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
|
|
fclose (fin);
|
|
return NULL;
|
|
}
|
|
*/
|
|
|
|
png_set_read_fn (png_ptr, fin, PNG_IO_user_read_data);
|
|
png_set_sig_bytes (png_ptr, 8);
|
|
png_read_info (png_ptr, pnginfo);
|
|
png_get_IHDR (png_ptr, pnginfo, (png_uint_32 *)&width, (png_uint_32 *)&height, &bitdepth, &colortype, &interlace, &compression, &filter);
|
|
|
|
if (width > IMAGE_MAX_DIMENSIONS || height > IMAGE_MAX_DIMENSIONS)
|
|
{
|
|
Con_DPrintf ("PNG image exceeds maximum supported dimensions\n");
|
|
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
|
|
fclose (fin);
|
|
return NULL;
|
|
}
|
|
|
|
if ((matchwidth && width != matchwidth) || (matchheight && height != matchheight))
|
|
{
|
|
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
|
|
fclose (fin);
|
|
return NULL;
|
|
}
|
|
|
|
if (colortype == PNG_COLOR_TYPE_PALETTE)
|
|
{
|
|
png_set_palette_to_rgb (png_ptr);
|
|
png_set_filler (png_ptr, 255, PNG_FILLER_AFTER);
|
|
}
|
|
|
|
if (colortype == PNG_COLOR_TYPE_GRAY && bitdepth < 8)
|
|
png_set_expand_gray_1_2_4_to_8 (png_ptr);
|
|
|
|
if (png_get_valid(png_ptr, pnginfo, PNG_INFO_tRNS))
|
|
png_set_tRNS_to_alpha (png_ptr);
|
|
|
|
if (colortype == PNG_COLOR_TYPE_GRAY || colortype == PNG_COLOR_TYPE_GRAY_ALPHA)
|
|
png_set_gray_to_rgb (png_ptr);
|
|
|
|
if (colortype != PNG_COLOR_TYPE_RGBA)
|
|
png_set_filler (png_ptr, 255, PNG_FILLER_AFTER);
|
|
|
|
if (bitdepth < 8)
|
|
png_set_expand (png_ptr);
|
|
else if (bitdepth == 16)
|
|
png_set_strip_16 (png_ptr);
|
|
|
|
png_read_update_info (png_ptr, pnginfo);
|
|
rowbytes = png_get_rowbytes (png_ptr, pnginfo);
|
|
bytesperpixel = png_get_channels (png_ptr, pnginfo);
|
|
bitdepth = png_get_bit_depth (png_ptr, pnginfo);
|
|
|
|
if (bitdepth != 8 || bytesperpixel != 4)
|
|
{
|
|
Con_DPrintf ("Unsupported PNG image: Bad color depth and/or bpp\n");
|
|
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
|
|
fclose (fin);
|
|
return NULL;
|
|
}
|
|
|
|
data = static_cast<byte*>(Hunk_Alloc(height * rowbytes));
|
|
rowpointers = static_cast<byte**>(Hunk_Alloc(height * sizeof(*rowpointers)));
|
|
|
|
for (y=0 ; y<height ; y++)
|
|
rowpointers[y] = data + y * rowbytes;
|
|
|
|
image_width = width;
|
|
image_height = height;
|
|
|
|
png_read_image (png_ptr, rowpointers);
|
|
png_read_end (png_ptr, NULL);
|
|
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
|
|
fclose (fin);
|
|
|
|
return data;
|
|
}
|
|
|
|
/*
|
|
=========================================================
|
|
BMP LOADING
|
|
from Q3,
|
|
modify by Crow_bar!
|
|
=========================================================
|
|
*/
|
|
typedef struct
|
|
{
|
|
char id[2];
|
|
unsigned long fileSize;
|
|
unsigned long reserved0;
|
|
unsigned long bitmapDataOffset;
|
|
unsigned long bitmapHeaderSize;
|
|
unsigned long width;
|
|
unsigned long height;
|
|
unsigned short planes;
|
|
unsigned short bitsPerPixel;
|
|
unsigned long compression;
|
|
unsigned long bitmapDataSize;
|
|
unsigned long hRes;
|
|
unsigned long vRes;
|
|
unsigned long colors;
|
|
unsigned long importantColors;
|
|
unsigned char palette[256][4];
|
|
} BMPHeader_t;
|
|
|
|
/*
|
|
=============
|
|
LoadBMP
|
|
=============
|
|
*/
|
|
byte *LoadBMP (FILE *fin, int matchwidth, int matchheight)
|
|
{
|
|
int columns, rows, numPixels;
|
|
byte *pixbuf;
|
|
int row, column;
|
|
BMPHeader_t bmpHeader;
|
|
byte *bmpRGBA;
|
|
|
|
|
|
bmpHeader.id[0] = fgetc(fin);
|
|
bmpHeader.id[1] = fgetc(fin);
|
|
bmpHeader.fileSize = fgetLittleLong(fin);
|
|
bmpHeader.reserved0 = fgetLittleLong(fin);
|
|
bmpHeader.bitmapDataOffset = fgetLittleLong(fin);
|
|
bmpHeader.bitmapHeaderSize = fgetLittleLong(fin);
|
|
bmpHeader.width = fgetLittleLong(fin);
|
|
bmpHeader.height = fgetLittleLong(fin);
|
|
bmpHeader.planes = fgetLittleShort(fin);
|
|
bmpHeader.bitsPerPixel = fgetLittleShort(fin);
|
|
bmpHeader.compression = fgetLittleLong(fin);
|
|
bmpHeader.bitmapDataSize = fgetLittleLong(fin);
|
|
bmpHeader.hRes = fgetLittleLong(fin);
|
|
bmpHeader.vRes = fgetLittleLong(fin);
|
|
bmpHeader.colors = fgetLittleLong(fin);
|
|
bmpHeader.importantColors = fgetLittleLong(fin);
|
|
|
|
if ((matchwidth && bmpHeader.width != matchwidth) || (matchheight && bmpHeader.height != matchheight))
|
|
{
|
|
fclose (fin);
|
|
return NULL;
|
|
}
|
|
|
|
//if (bmpHeader.fileSize != 0 )
|
|
//{
|
|
// fseek (fin, bmpHeader.fileSize, SEEK_CUR);
|
|
//}
|
|
if ( bmpHeader.bitsPerPixel == 8 )
|
|
{
|
|
//buf_p += 1024;
|
|
memcpy( bmpHeader.palette, (const void*)fgetc(fin), sizeof( bmpHeader.palette ) );
|
|
//Con_Printf("Not support 8bpp\n");
|
|
}
|
|
if ( bmpHeader.id[0] != 'B' && bmpHeader.id[1] != 'M' )
|
|
{
|
|
Sys_Error("LoadBMP: only Windows-style BMP files supported \n");
|
|
}
|
|
|
|
if ( bmpHeader.compression != 0 )
|
|
{
|
|
Sys_Error("LoadBMP: only uncompressed BMP files supported \n");
|
|
}
|
|
if ( bmpHeader.bitsPerPixel < 8 )
|
|
{
|
|
Sys_Error("LoadBMP: monochrome and 4-bit BMP files not supported \n");
|
|
}
|
|
|
|
image_width = columns = bmpHeader.width;
|
|
image_height = rows = bmpHeader.height;
|
|
|
|
if ( rows < 0 )
|
|
rows = -rows;
|
|
|
|
numPixels = columns * rows;
|
|
|
|
bmpRGBA = static_cast<byte*>(malloc(numPixels * 4));
|
|
|
|
for ( row = rows-1; row >= 0; row-- )
|
|
{
|
|
pixbuf = bmpRGBA + row*columns*4;
|
|
|
|
for ( column = 0; column < columns; column++ )
|
|
{
|
|
unsigned char red, green, blue, alpha;
|
|
int palIndex;
|
|
unsigned short shortPixel;
|
|
|
|
switch ( bmpHeader.bitsPerPixel )
|
|
{
|
|
case 8:
|
|
palIndex = getc(fin);
|
|
*pixbuf++ = bmpHeader.palette[palIndex][2];
|
|
*pixbuf++ = bmpHeader.palette[palIndex][1];
|
|
*pixbuf++ = bmpHeader.palette[palIndex][0];
|
|
*pixbuf++ = 0xff;
|
|
break;
|
|
case 16:
|
|
shortPixel = * ( unsigned short * ) pixbuf;
|
|
pixbuf += 2;
|
|
*pixbuf++ = ( shortPixel & ( 31 << 10 ) ) >> 7;
|
|
*pixbuf++ = ( shortPixel & ( 31 << 5 ) ) >> 2;
|
|
*pixbuf++ = ( shortPixel & ( 31 ) ) << 3;
|
|
*pixbuf++ = 0xff;
|
|
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);
|
|
alpha = getc (fin);
|
|
*pixbuf++ = red;
|
|
*pixbuf++ = green;
|
|
*pixbuf++ = blue;
|
|
*pixbuf++ = alpha;
|
|
break;
|
|
default:
|
|
Sys_Error("LoadBMP: illegal pixel_size '%d' in file\n", bmpHeader.bitsPerPixel);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
fclose(fin);
|
|
|
|
return bmpRGBA;
|
|
}
|
|
|
|
/*
|
|
=============
|
|
loadimagepixels
|
|
=============
|
|
*/
|
|
// HACK HACK HACK
|
|
byte* loadimagepixels (char* filename, qboolean complain, int matchwidth, int matchheight)
|
|
{
|
|
FILE *f;
|
|
char basename[128], name[128];
|
|
byte *c;
|
|
|
|
if (complain == qfalse)
|
|
COM_StripExtension(filename, basename); // strip the extension to allow TGA and PCX
|
|
else
|
|
strcpy(basename, filename);
|
|
|
|
c = (byte*)(basename);
|
|
|
|
while (*c)
|
|
{
|
|
if (*c == '*')
|
|
*c = '+';
|
|
c++;
|
|
}
|
|
|
|
com_netpath[0] = 0;
|
|
/*
|
|
sprintf (name, "%s.wal", basename);
|
|
if (data = LoadWAL(name))
|
|
return data;
|
|
*/
|
|
|
|
sprintf (name, "%s.tga", basename);
|
|
FS_FOpenFile (name, &f);
|
|
if (f)
|
|
return LoadTGA (f, matchwidth, matchheight);
|
|
|
|
sprintf (name, "%s.pcx", basename);
|
|
FS_FOpenFile (name, &f);
|
|
if (f)
|
|
return LoadPCX (f, matchwidth, matchheight);
|
|
|
|
sprintf (name, "%s.jpg", basename);
|
|
FS_FOpenFile (name, &f);
|
|
if (f)
|
|
{
|
|
return LoadJPG (f, matchwidth, matchheight);
|
|
}
|
|
sprintf (name, "%s.png", basename);
|
|
FS_FOpenFile (name, &f);
|
|
if (f)
|
|
return LoadPNG (f, matchwidth, matchheight);
|
|
|
|
sprintf (name, "%s.bmp", basename);
|
|
FS_FOpenFile (name, &f);
|
|
if (f)
|
|
return LoadBMP (f, matchwidth, matchheight);
|
|
//if (complain)
|
|
// Con_Printf ("Couldn't load %s .tga .jpg .bmp .png \n", filename);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
=============
|
|
loadtextureimage
|
|
=============
|
|
*/
|
|
|
|
int loadtextureimage (char* filename, int matchwidth, int matchheight, qboolean complain, int filter)
|
|
{
|
|
int texture_index;
|
|
byte *data;
|
|
|
|
int hunk_start = Hunk_LowMark();
|
|
data = loadimagepixels (filename, complain, matchwidth, matchheight);
|
|
int hunk_stop = Hunk_LowMark();
|
|
|
|
if(!data)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if(image_palette_type)
|
|
{
|
|
texture_index = GL_LoadPalTex (filename, image_width, image_height, data, qtrue, filter, 0, (byte *)image_palette, image_palette_type);
|
|
memset(image_palette, 0, sizeof(image_palette)); // clear temp pal
|
|
image_palette_type = 0;
|
|
}
|
|
else
|
|
{
|
|
texture_index = GL_LoadImages (filename, image_width, image_height, data, qtrue, filter, 0, 4);
|
|
}
|
|
|
|
// Only free the hunk if it was used.
|
|
if (hunk_start != hunk_stop)
|
|
Hunk_FreeToLowMark(hunk_start);
|
|
else
|
|
free(data);
|
|
|
|
return texture_index;
|
|
}
|