diff options
Diffstat (limited to 'modules/mod_map/file_pal.c')
| -rw-r--r-- | modules/mod_map/file_pal.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/modules/mod_map/file_pal.c b/modules/mod_map/file_pal.c new file mode 100644 index 0000000..414a449 --- /dev/null +++ b/modules/mod_map/file_pal.c @@ -0,0 +1,208 @@ +/* + * Copyright © 2006-2016 SplinterGU (Fenix/Bennugd) + * Copyright © 2002-2006 Fenix Team (Fenix) + * Copyright © 1999-2002 José Luis Cebrián Pagüe (Fenix) + * + * This file is part of Bennu - Game Development + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * + * 3. This notice may not be removed or altered from any source + * distribution. + * + */ + +/* --------------------------------------------------------------------------- */ + +#include "mod_map.h" + +/* --------------------------------------------------------------------------- */ + +PALETTE * gr_read_pal( file * fp ) +{ + PALETTE * pal; + int i; + uint8_t colors[256*3] ; + + if ( file_read( fp, colors, sizeof( colors ) ) != sizeof( colors ) ) return NULL ; + + for ( i = 0; i < 768; i++ ) colors[i] <<= 2; + + pal = pal_new_rgb(( uint8_t * )colors ); + pal_refresh( pal ); + + if ( !sys_pixel_format->palette ) + { + sys_pixel_format->palette = pal_new( pal ); +/* pal_use( sys_pixel_format->palette ); */ + palette_changed = 1 ; + } + + return pal ; +} + +/* --------------------------------------------------------------------------- */ + +PALETTE * gr_read_pal_with_gamma( file * fp ) +{ + PALETTE * pal = gr_read_pal( fp ); + + /* Ignora definiciones de gama */ + if ( pal ) file_seek( fp, 576, SEEK_CUR ) ; + + return pal ; +} + +/* --------------------------------------------------------------------------- */ + +/* + * FUNCTION : gr_save_pal + * + * Saves palette to the given file + * + * PARAMS : + * filename Name of file to create + * pal Palette + * + * RETURN VALUE : + * 1 if succeded, 0 if error + */ + +int gr_save_pal( const char * filename, PALETTE * pal ) +{ + if ( !filename ) return 0; + + uint8_t colors[256*3] ; + + file * fp ; + char header[8] = PAL_MAGIC; + int i; + + if ( !pal ) return 0; + + fp = file_open( filename, "wb" ); + if ( !fp ) return 0; + + memmove( colors, pal->rgb, sizeof( colors ) ); + for ( i = 0; i < sizeof( colors ); i++ ) colors[i] >>= 2; + + header[7] = 0x00; /* Version */ + file_write( fp, header, 8 ); + file_write( fp, colors, 768 ); + + memset( colors, 0, 576 ); + file_write( fp, colors, 576 ); + file_close( fp ); + + return 1; +} + +/* --------------------------------------------------------------------------- */ + +/* + * FUNCTION : gr_save_system_pal + * + * Saves the current palette to the given file + * + * PARAMS : + * filename Name of file to create + * + * RETURN VALUE : + * 1 if succeded, 0 if error + */ + +int gr_save_system_pal( const char * filename ) +{ + file * fp = file_open( filename, "wb" ); + char header[8] = PAL_MAGIC; + int i; + + if ( !fp ) return 0; + + uint8_t colors[256*3] ; + + memmove( colors, sys_pixel_format->palette ? ( uint8_t * ) sys_pixel_format->palette->rgb : default_palette, sizeof( colors ) ); + for ( i = 0; i < sizeof( colors ); i++ ) colors[i] >>= 2; + + header[7] = 0x00; /* Version */ + file_write( fp, header, 8 ); + file_write( fp, colors, 768 ); + + memset( colors, 0, 576 ); + file_write( fp, colors, 576 ); + file_close( fp ); + + return 1; +} + +/* --------------------------------------------------------------------------- */ + +int gr_load_pal( const char * filename ) +{ + if ( !filename ) return 0; + + file * fp = file_open( filename, "rb" ) ; + char header[8] ; + PALETTE * r = NULL ; + PALETTE * old_sys_pal = sys_pixel_format->palette ; + + if ( !fp ) return 0 ; + + if ( file_read( fp, header, sizeof( header ) ) != sizeof( header ) ) return 0; + if ( !strcmp( header, MAP_MAGIC ) ) + { + file_seek( fp, 48, SEEK_SET ) ; + r = gr_read_pal_with_gamma( fp ) ; + } + else if ( + !strcmp( header, FPG_MAGIC ) || + !strcmp( header, FNT_MAGIC ) || + !strcmp( header, PAL_MAGIC ) ) + { + r = gr_read_pal_with_gamma( fp ) ; + } + else if ( memcmp( header, "\x89PNG", 4 ) == 0 ) + { + GRAPH * graph ; + file_close( fp ); + fp = NULL; + graph = gr_read_png( filename ); + if ( graph ) + { + r = pal_new( graph->format->palette ); + bitmap_destroy( graph ); + } + } + + if ( r ) + { +// pal_use( r ); + if ( old_sys_pal ) + { + pal_destroy( old_sys_pal ); + + sys_pixel_format->palette = pal_new( r ); +/* pal_use( sys_pixel_format->palette ); */ + palette_changed = 1 ; + } + } + + if ( fp ) file_close( fp ) ; + return ( int ) r; +} + +/* --------------------------------------------------------------------------- */ |