diff options
author | Tim Angus <tim@ngus.net> | 2013-02-16 12:14:48 +0000 |
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committer | Tim Angus <tim@ngus.net> | 2013-02-16 21:58:27 +0000 |
commit | eb0a54ff95ad6120182d6685c590d720da14c1d9 (patch) | |
tree | e3ccce6b8b2329041bb3dc68877c041d181fc426 /src/renderergl1/tr_image_tga.c | |
parent | 5728b0a1233bb4e1c15cd599bca9d959ec87eab7 (diff) |
Move some things into renderercommon
Diffstat (limited to 'src/renderergl1/tr_image_tga.c')
-rw-r--r-- | src/renderergl1/tr_image_tga.c | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/src/renderergl1/tr_image_tga.c b/src/renderergl1/tr_image_tga.c deleted file mode 100644 index b707c0ed..00000000 --- a/src/renderergl1/tr_image_tga.c +++ /dev/null @@ -1,321 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. -Copyright (C) 2000-2009 Darklegion Development - -This file is part of Tremulous. - -Tremulous 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. - -Tremulous 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 Tremulous; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ - -#include "tr_local.h" - -/* -======================================================================== - -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); -} |