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Better api to get texture data

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This commit is contained in:
jaburns
2020-10-12 14:08:55 -06:00
parent 8f893d6c0b
commit 20791ebcea
5 changed files with 28 additions and 38 deletions
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src/load_tex_data.c
+9 -16
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@@ -2,39 +2,32 @@
#include <stddef.h>
#include <string.h>
#include "libsm64.h"
#include "tools/libmio0.h"
#include "tools/n64graphics.h"
uint8_t *gLibSm64TextureRgba;
#define MARIO_TEX_ROM_OFFSET 1132368
#define NUM_USED_TEXTURES 11
#define ATLAS_WIDTH (NUM_USED_TEXTURES * 64)
#define ATLAS_HEIGHT 64
static int mario_tex_offsets[NUM_USED_TEXTURES] = { 144, 4240, 6288, 8336, 10384, 12432, 14480, 16528, 30864, 32912, 37008 };
static int mario_tex_widths [NUM_USED_TEXTURES] = { 64, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32 };
static int mario_tex_heights[NUM_USED_TEXTURES] = { 32, 32, 32, 32, 32, 32, 32, 32, 32, 64, 64 };
static void blt_image_to_atlas( rgba *img, int i, int w, int h )
static void blt_image_to_atlas( rgba *img, int i, int w, int h, uint8_t *outTexture )
{
for( int iy = 0; iy < h; ++iy )
for( int ix = 0; ix < w; ++ix )
{
int o = (ix + 64 * i) + iy * ATLAS_WIDTH;
int q = ix + iy * w;
gLibSm64TextureRgba[4*o + 0] = img[q].red;
gLibSm64TextureRgba[4*o + 1] = img[q].green;
gLibSm64TextureRgba[4*o + 2] = img[q].blue;
gLibSm64TextureRgba[4*o + 3] = img[q].alpha;
outTexture[4*o + 0] = img[q].red;
outTexture[4*o + 1] = img[q].green;
outTexture[4*o + 2] = img[q].blue;
outTexture[4*o + 3] = img[q].alpha;
}
}
void load_mario_textures_from_rom( uint8_t *rom )
void load_mario_textures_from_rom( uint8_t *rom, uint8_t *outTexture )
{
gLibSm64TextureRgba = malloc( 4 * ATLAS_WIDTH * ATLAS_HEIGHT );
memset( gLibSm64TextureRgba, 0, 4 * ATLAS_WIDTH * ATLAS_HEIGHT );
memset( outTexture, 0, 4 * ATLAS_WIDTH * ATLAS_HEIGHT );
mio0_header_t head;
uint8_t *in_buf = rom + MARIO_TEX_ROM_OFFSET;
@@ -47,7 +40,7 @@ void load_mario_textures_from_rom( uint8_t *rom )
{
uint8_t *raw = out_buf + mario_tex_offsets[i];
rgba *img = raw2rgba( raw, mario_tex_widths[i], mario_tex_heights[i], 16 );
blt_image_to_atlas( img, i, mario_tex_widths[i], mario_tex_heights[i] );
blt_image_to_atlas( img, i, mario_tex_widths[i], mario_tex_heights[i], outTexture );
free( img );
}