diff options
Diffstat (limited to 'src/renderer/tr_image_bmp.c')
| -rw-r--r-- | src/renderer/tr_image_bmp.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/src/renderer/tr_image_bmp.c b/src/renderer/tr_image_bmp.c deleted file mode 100644 index eed62c58..00000000 --- a/src/renderer/tr_image_bmp.c +++ /dev/null @@ -1,240 +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" - -typedef struct -{ - char id[2]; - unsigned fileSize; - unsigned reserved0; - unsigned bitmapDataOffset; - unsigned bitmapHeaderSize; - unsigned width; - unsigned height; - unsigned short planes; - unsigned short bitsPerPixel; - unsigned compression; - unsigned bitmapDataSize; - unsigned hRes; - unsigned vRes; - unsigned colors; - unsigned importantColors; - unsigned char palette[256][4]; -} BMPHeader_t; - -void R_LoadBMP( const char *name, byte **pic, int *width, int *height ) -{ - int columns, rows; - unsigned numPixels; - byte *pixbuf; - int row, column; - byte *buf_p; - byte *end; - union { - byte *b; - void *v; - } buffer; - int length; - BMPHeader_t bmpHeader; - byte *bmpRGBA; - - *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 < 54) - { - ri.Error( ERR_DROP, "LoadBMP: header too short (%s)", name ); - } - - buf_p = buffer.b; - end = buffer.b + length; - - bmpHeader.id[0] = *buf_p++; - bmpHeader.id[1] = *buf_p++; - bmpHeader.fileSize = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.reserved0 = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.bitmapDataOffset = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.bitmapHeaderSize = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.width = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.height = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.planes = LittleShort( * ( short * ) buf_p ); - buf_p += 2; - bmpHeader.bitsPerPixel = LittleShort( * ( short * ) buf_p ); - buf_p += 2; - bmpHeader.compression = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.bitmapDataSize = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.hRes = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.vRes = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.colors = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - bmpHeader.importantColors = LittleLong( * ( int * ) buf_p ); - buf_p += 4; - - if ( bmpHeader.bitsPerPixel == 8 ) - { - if (buf_p + sizeof(bmpHeader.palette) > end) - ri.Error( ERR_DROP, "LoadBMP: header too short (%s)", name ); - - Com_Memcpy( bmpHeader.palette, buf_p, sizeof( bmpHeader.palette ) ); - buf_p += sizeof(bmpHeader.palette); - } - - if (buffer.b + bmpHeader.bitmapDataOffset > end) - { - ri.Error( ERR_DROP, "LoadBMP: invalid offset value in header (%s)", name ); - } - - buf_p = buffer.b + bmpHeader.bitmapDataOffset; - - if ( bmpHeader.id[0] != 'B' && bmpHeader.id[1] != 'M' ) - { - ri.Error( ERR_DROP, "LoadBMP: only Windows-style BMP files supported (%s)", name ); - } - if ( bmpHeader.fileSize != length ) - { - ri.Error( ERR_DROP, "LoadBMP: header size does not match file size (%u vs. %u) (%s)", bmpHeader.fileSize, length, name ); - } - if ( bmpHeader.compression != 0 ) - { - ri.Error( ERR_DROP, "LoadBMP: only uncompressed BMP files supported (%s)", name ); - } - if ( bmpHeader.bitsPerPixel < 8 ) - { - ri.Error( ERR_DROP, "LoadBMP: monochrome and 4-bit BMP files not supported (%s)", name ); - } - - switch ( bmpHeader.bitsPerPixel ) - { - case 8: - case 16: - case 24: - case 32: - break; - default: - ri.Error( ERR_DROP, "LoadBMP: illegal pixel_size '%hu' in file '%s'", bmpHeader.bitsPerPixel, name ); - break; - } - - columns = bmpHeader.width; - rows = bmpHeader.height; - if ( rows < 0 ) - rows = -rows; - numPixels = columns * rows; - - if(columns <= 0 || !rows || numPixels > 0x1FFFFFFF // 4*1FFFFFFF == 0x7FFFFFFC < 0x7FFFFFFF - || ((numPixels * 4) / columns) / 4 != rows) - { - ri.Error (ERR_DROP, "LoadBMP: %s has an invalid image size", name); - } - if(buf_p + numPixels*bmpHeader.bitsPerPixel/8 > end) - { - ri.Error (ERR_DROP, "LoadBMP: file truncated (%s)", name); - } - - if ( width ) - *width = columns; - if ( height ) - *height = rows; - - bmpRGBA = ri.Malloc( numPixels * 4 ); - *pic = bmpRGBA; - - - 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 = *buf_p++; - *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 = *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++; - alpha = *buf_p++; - *pixbuf++ = red; - *pixbuf++ = green; - *pixbuf++ = blue; - *pixbuf++ = alpha; - break; - } - } - } - - ri.FS_FreeFile( buffer.v ); - -} |