shade LUT in iwram

diff --git a/src/gamescr.c b/src/gamescr.c
index 5305c8b..416e99c 100644 (file)
--- a/src/gamescr.c
+++ b/src/gamescr.c
@@ -15,7 +15,7 @@ static void vblank(void);
 
 static int nframes, num_vbl, backbuf;
 static uint16_t *vram[] = { (uint16_t*)VRAM_LFB_FB0_ADDR, (uint16_t*)VRAM_LFB_FB1_ADDR };
-static unsigned char *tex;
+static unsigned char *tex, *shadelut;
 static uint16_t bnstate;
 
 #define MAX_SPR                4
@@ -36,7 +36,7 @@ void gamescr(void)
 
        REG_DISPCNT = 4 | DISPCNT_BG2 | DISPCNT_OBJ | DISPCNT_FB1;
 
-       vblperf_setcolor(0xff);
+       vblperf_setcolor(0xff);//192);
 
        /* sprite setup */
        spr_setup(16, 16, spr_game_pixels, spr_game_cmap);
@@ -60,6 +60,8 @@ void gamescr(void)
 
        tex = iwram_sbrk(32 * 32);
        memcpy(tex, tuncross_pixels, 32 * 32);
+       shadelut = iwram_sbrk(256 * 8);
+       memcpy(shadelut, tuncross_shade, 256 * 8);
 
        scale = 0x100;//230;
        REG_BG2PA = scale;
@@ -93,7 +95,7 @@ void gamescr(void)
 #define TUN_U(x)       ((x) & 0x3f)
 #define TUN_V(x)       (((x) >> 6) & 0x3ff)
 #define TEXEL(x, y, lvl) \
-       tuncross_shade[((int)tex[((y) << 5) + (x)] << 3) + (lvl)]
+       shadelut[((int)tex[((y) << 5) + (x)] << 3) + (lvl)]
 
 __attribute__((noinline, target("arm"), section(".iwram")))
 static void draw_tunnel(void)