Renato Rotenberg
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
#include "load_tex_data.h"
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include "libsm64.h"
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#include "decomp/tools/libmio0.h"
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#include "decomp/tools/n64graphics.h"
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#define MARIO_TEX_ROM_OFFSET 1132368
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#define ATLAS_WIDTH (NUM_USED_TEXTURES * 64)
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#define ATLAS_HEIGHT 64
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static void blt_image_to_atlas( rgba *img, int i, int w, int h, uint8_t *outTexture )
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{
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for( int iy = 0; iy < h; ++iy )
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for( int ix = 0; ix < w; ++ix )
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{
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int o = (ix + 64 * i) + iy * ATLAS_WIDTH;
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int q = ix + iy * w;
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outTexture[4*o + 0] = img[q].red;
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outTexture[4*o + 1] = img[q].green;
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outTexture[4*o + 2] = img[q].blue;
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outTexture[4*o + 3] = img[q].alpha;
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}
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}
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void load_mario_textures_from_rom( const uint8_t *rom, uint8_t *outTexture )
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{
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memset( outTexture, 0, 4 * ATLAS_WIDTH * ATLAS_HEIGHT );
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mio0_header_t head;
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const uint8_t *in_buf = rom + MARIO_TEX_ROM_OFFSET;
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mio0_decode_header( in_buf, &head );
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uint8_t *out_buf = malloc( head.dest_size );
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mio0_decode( in_buf, out_buf, NULL );
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for( int i = 0; i < NUM_USED_TEXTURES; ++i )
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{
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uint8_t *raw = out_buf + mario_tex_offsets[i];
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rgba *img = raw2rgba( raw, mario_tex_widths[i], mario_tex_heights[i], 16 );
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blt_image_to_atlas( img, i, mario_tex_widths[i], mario_tex_heights[i], outTexture );
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free( img );
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}
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free( out_buf );
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} |