summaryrefslogtreecommitdiff
path: root/src/rend2/tr_image_tga.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/rend2/tr_image_tga.c')
-rw-r--r--src/rend2/tr_image_tga.c324
1 files changed, 0 insertions, 324 deletions
diff --git a/src/rend2/tr_image_tga.c b/src/rend2/tr_image_tga.c
deleted file mode 100644
index 27ca0d7b..00000000
--- a/src/rend2/tr_image_tga.c
+++ /dev/null
@@ -1,324 +0,0 @@
-/*
-===========================================================================
-Copyright (C) 1999-2005 Id Software, Inc.
-
-This file is part of Quake III Arena source code.
-
-Quake III Arena source code is free software; you can redistribute it
-and/or modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation; either version 2 of the License,
-or (at your option) any later version.
-
-Quake III Arena source code is distributed in the hope that it will be
-useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with Quake III Arena source code; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-===========================================================================
-*/
-
-#include "../qcommon/q_shared.h"
-#include "../qcommon/qfiles.h"
-#include "../qcommon/qcommon.h"
-#include "../renderer/tr_public.h"
-extern refimport_t ri;
-
-/*
-========================================================================
-
-TGA files are used for 24/32 bit images
-
-========================================================================
-*/
-
-typedef struct _TargaHeader {
- unsigned char id_length, colormap_type, image_type;
- unsigned short colormap_index, colormap_length;
- unsigned char colormap_size;
- unsigned short x_origin, y_origin, width, height;
- unsigned char pixel_size, attributes;
-} TargaHeader;
-
-void R_LoadTGA ( const char *name, byte **pic, int *width, int *height)
-{
- unsigned columns, rows, numPixels;
- byte *pixbuf;
- int row, column;
- byte *buf_p;
- byte *end;
- union {
- byte *b;
- void *v;
- } buffer;
- TargaHeader targa_header;
- byte *targa_rgba;
- int length;
-
- *pic = NULL;
-
- if(width)
- *width = 0;
- if(height)
- *height = 0;
-
- //
- // load the file
- //
- length = ri.FS_ReadFile ( ( char * ) name, &buffer.v);
- if (!buffer.b || length < 0) {
- return;
- }
-
- if(length < 18)
- {
- ri.Error( ERR_DROP, "LoadTGA: header too short (%s)", name );
- }
-
- buf_p = buffer.b;
- end = buffer.b + length;
-
- targa_header.id_length = buf_p[0];
- targa_header.colormap_type = buf_p[1];
- targa_header.image_type = buf_p[2];
-
- memcpy(&targa_header.colormap_index, &buf_p[3], 2);
- memcpy(&targa_header.colormap_length, &buf_p[5], 2);
- targa_header.colormap_size = buf_p[7];
- memcpy(&targa_header.x_origin, &buf_p[8], 2);
- memcpy(&targa_header.y_origin, &buf_p[10], 2);
- memcpy(&targa_header.width, &buf_p[12], 2);
- memcpy(&targa_header.height, &buf_p[14], 2);
- targa_header.pixel_size = buf_p[16];
- targa_header.attributes = buf_p[17];
-
- targa_header.colormap_index = LittleShort(targa_header.colormap_index);
- targa_header.colormap_length = LittleShort(targa_header.colormap_length);
- targa_header.x_origin = LittleShort(targa_header.x_origin);
- targa_header.y_origin = LittleShort(targa_header.y_origin);
- targa_header.width = LittleShort(targa_header.width);
- targa_header.height = LittleShort(targa_header.height);
-
- buf_p += 18;
-
- if (targa_header.image_type!=2
- && targa_header.image_type!=10
- && targa_header.image_type != 3 )
- {
- ri.Error (ERR_DROP, "LoadTGA: Only type 2 (RGB), 3 (gray), and 10 (RGB) TGA images supported");
- }
-
- if ( targa_header.colormap_type != 0 )
- {
- ri.Error( ERR_DROP, "LoadTGA: colormaps not supported" );
- }
-
- if ( ( targa_header.pixel_size != 32 && targa_header.pixel_size != 24 ) && targa_header.image_type != 3 )
- {
- ri.Error (ERR_DROP, "LoadTGA: Only 32 or 24 bit images supported (no colormaps)");
- }
-
- columns = targa_header.width;
- rows = targa_header.height;
- numPixels = columns * rows * 4;
-
- if(!columns || !rows || numPixels > 0x7FFFFFFF || numPixels / columns / 4 != rows)
- {
- ri.Error (ERR_DROP, "LoadTGA: %s has an invalid image size", name);
- }
-
-
- targa_rgba = ri.Malloc (numPixels);
-
- if (targa_header.id_length != 0)
- {
- if (buf_p + targa_header.id_length > end)
- ri.Error( ERR_DROP, "LoadTGA: header too short (%s)", name );
-
- buf_p += targa_header.id_length; // skip TARGA image comment
- }
-
- if ( targa_header.image_type==2 || targa_header.image_type == 3 )
- {
- if(buf_p + columns*rows*targa_header.pixel_size/8 > end)
- {
- ri.Error (ERR_DROP, "LoadTGA: file truncated (%s)", name);
- }
-
- // Uncompressed RGB or gray scale image
- for(row=rows-1; row>=0; row--)
- {
- pixbuf = targa_rgba + row*columns*4;
- for(column=0; column<columns; column++)
- {
- unsigned char red,green,blue,alphabyte;
- switch (targa_header.pixel_size)
- {
-
- case 8:
- blue = *buf_p++;
- green = blue;
- red = blue;
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = 255;
- break;
-
- case 24:
- blue = *buf_p++;
- green = *buf_p++;
- red = *buf_p++;
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = 255;
- break;
- case 32:
- blue = *buf_p++;
- green = *buf_p++;
- red = *buf_p++;
- alphabyte = *buf_p++;
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = alphabyte;
- break;
- default:
- ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'", targa_header.pixel_size, name );
- break;
- }
- }
- }
- }
- else if (targa_header.image_type==10) { // Runlength encoded RGB images
- unsigned char red,green,blue,alphabyte,packetHeader,packetSize,j;
-
- red = 0;
- green = 0;
- blue = 0;
- alphabyte = 0xff;
-
- for(row=rows-1; row>=0; row--) {
- pixbuf = targa_rgba + row*columns*4;
- for(column=0; column<columns; ) {
- if(buf_p + 1 > end)
- ri.Error (ERR_DROP, "LoadTGA: file truncated (%s)", name);
- packetHeader= *buf_p++;
- packetSize = 1 + (packetHeader & 0x7f);
- if (packetHeader & 0x80) { // run-length packet
- if(buf_p + targa_header.pixel_size/8 > end)
- ri.Error (ERR_DROP, "LoadTGA: file truncated (%s)", name);
- switch (targa_header.pixel_size) {
- case 24:
- blue = *buf_p++;
- green = *buf_p++;
- red = *buf_p++;
- alphabyte = 255;
- break;
- case 32:
- blue = *buf_p++;
- green = *buf_p++;
- red = *buf_p++;
- alphabyte = *buf_p++;
- break;
- default:
- ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'", targa_header.pixel_size, name );
- break;
- }
-
- for(j=0;j<packetSize;j++) {
- *pixbuf++=red;
- *pixbuf++=green;
- *pixbuf++=blue;
- *pixbuf++=alphabyte;
- column++;
- if (column==columns) { // run spans across rows
- column=0;
- if (row>0)
- row--;
- else
- goto breakOut;
- pixbuf = targa_rgba + row*columns*4;
- }
- }
- }
- else { // non run-length packet
-
- if(buf_p + targa_header.pixel_size/8*packetSize > end)
- ri.Error (ERR_DROP, "LoadTGA: file truncated (%s)", name);
- for(j=0;j<packetSize;j++) {
- switch (targa_header.pixel_size) {
- case 24:
- blue = *buf_p++;
- green = *buf_p++;
- red = *buf_p++;
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = 255;
- break;
- case 32:
- blue = *buf_p++;
- green = *buf_p++;
- red = *buf_p++;
- alphabyte = *buf_p++;
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = alphabyte;
- break;
- default:
- ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'", targa_header.pixel_size, name );
- 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;
- }
- }
- }
- }
- breakOut:;
- }
- }
-
-#if 0
- // TTimo: this is the chunk of code to ensure a behavior that meets TGA specs
- // bit 5 set => top-down
- if (targa_header.attributes & 0x20) {
- unsigned char *flip = (unsigned char*)malloc (columns*4);
- unsigned char *src, *dst;
-
- for (row = 0; row < rows/2; row++) {
- src = targa_rgba + row * 4 * columns;
- dst = targa_rgba + (rows - row - 1) * 4 * columns;
-
- memcpy (flip, src, columns*4);
- memcpy (src, dst, columns*4);
- memcpy (dst, flip, columns*4);
- }
- free (flip);
- }
-#endif
- // instead we just print a warning
- if (targa_header.attributes & 0x20) {
- ri.Printf( PRINT_WARNING, "WARNING: '%s' TGA file header declares top-down image, ignoring\n", name);
- }
-
- if (width)
- *width = columns;
- if (height)
- *height = rows;
-
- *pic = targa_rgba;
-
- ri.FS_FreeFile (buffer.v);
-}
generated by cgit (git 2.34.1) at 2024-11-15 12:50:11 +0000