gamescr_vblank
};
-static int nframes, num_vbl, backbuf;
+static uint16_t *framebuf;
+
+static int nframes, backbuf;
static uint16_t *vram[] = { gba_vram_lfb0, gba_vram_lfb1 };
static int32_t pos[2], angle;
#define COLOR_HORIZON 192
#define COLOR_ZENITH 255
+#define MAX_SPR 8
+static uint16_t oam[4 * MAX_SPR];
struct screen *init_game_screen(void)
if(!(vox = vox_create(VOX_SZ, VOX_SZ, height_pixels, color_pixels))) {
panic(get_pc(), "vox_create");
}
- vox_proj(vox, 45, 2, VOX_SZ / 5);
+ vox_proj(vox, 30, 2, 85);
/* setup color image palette */
- for(i=0; i<192; i++) {
+ for(i=0; i<256; i++) {
int r = color_cmap[i * 3];
int g = color_cmap[i * 3 + 1];
int b = color_cmap[i * 3 + 2];
gba_bgpal[i] = (((uint16_t)b << 7) & 0x7c00) | (((uint16_t)g << 2) & 0x3e0) | (((uint16_t)r >> 3) & 0x1f);
}
+ /*
+ intr_disable();
+ interrupt(INTR_HBLANK, hblank);
+ REG_DISPSTAT |= DISPSTAT_IEN_HBLANK;
+ unmask(INTR_HBLANK);
+ intr_enable();
+ */
- /* setup sky gradient palette */
- for(i=0; i<64; i++) {
- int t = (i << 8) / 64;
- int r = (0xcc00 + (0x55 - 0xcc) * t) >> 8;
- int g = (0x7700 + (0x88 - 0x77) * t) >> 8;
- int b = (0xff00 + (0xcc - 0xff) * t) >> 8;
- int cidx = COLOR_HORIZON + i;
- gba_bgpal[cidx] = ((b << 7) & 0x7c00) | ((g << 2) & 0x3e0) | (r >> 3);
- }
+ spr_setup(16, 2, spr_game_pixels, spr_game_cmap);
+
+ wait_vblank();
+ spr_clear();
+ spr_oam(oam, 0, 516, 0, 144, SPR_SZ16 | SPR_256COL);
+ spr_oam(oam, 1, 516, 16, 144, SPR_SZ16 | SPR_256COL);
+ spr_oam(oam, 2, 516, 32, 144, SPR_SZ16 | SPR_256COL);
+ spr_oam(oam, 3, 520, 48, 144, SPR_SZ16 | SPR_256COL);
+
+ spr_oam(oam, 4, 512, 176, 144, SPR_SZ16 | SPR_256COL);
+ spr_oam(oam, 5, 516, 192, 144, SPR_SZ16 | SPR_256COL);
+ spr_oam(oam, 6, 516, 208, 144, SPR_SZ16 | SPR_256COL);
+ spr_oam(oam, 7, 516, 224, 144, SPR_SZ16 | SPR_256COL);
+ dma_copy16(3, (void*)OAM_ADDR, oam, sizeof oam / 2, 0);
nframes = 0;
return 0;
static void gamescr_stop(void)
{
+ /*mask(INTR_HBLANK);*/
}
static void gamescr_frame(void)
{
- unsigned char *fb;
-
backbuf = ++nframes & 1;
- fb = (unsigned char*)vram[backbuf];
+ framebuf = vram[backbuf];
- vox_framebuf(vox, 240, 160, fb, -1);
+ vox_framebuf(vox, 240, 160, framebuf, -1);
update();
draw();
if(!(nframes & 15)) {
emuprint("vbl: %d", vblperf_count);
}
+#ifdef VBLBAR
vblperf_begin();
+#else
+ vblperf_count = 0;
+#endif
}
#define WALK_SPEED 0x40000
-#define TURN_SPEED 0x100
+#define TURN_SPEED 0x200
+
+static volatile uint16_t input;
static void update(void)
{
int32_t fwd[2], right[2];
- uint16_t input;
if((input = read_input())) {
- if(input & BN_LT) angle += TURN_SPEED;
- if(input & BN_RT) angle -= TURN_SPEED;
+ if(input & BN_LT) {
+ angle += TURN_SPEED;
+ }
+ if(input & BN_RT) {
+ angle -= TURN_SPEED;
+ }
fwd[0] = -SIN(angle);
fwd[1] = COS(angle);
pos[1] -= right[1];
}
- vox_view(vox, pos[0], pos[1], -30, angle);
+ vox_view(vox, pos[0], pos[1], -40, angle);
}
}
static void draw(void)
{
+ dma_fill16(3, framebuf, 0, 240 * 160 / 2);
+ //fillblock_16byte(framebuf, 0, 240 * 160 / 16);
+
vox_render(vox);
//vox_sky_grad(vox, COLOR_HORIZON, COLOR_ZENITH);
- vox_sky_solid(vox, COLOR_ZENITH);
+ //vox_sky_solid(vox, COLOR_ZENITH);
}
+#define MAXBANK 0x100
+
ARM_IWRAM
static void gamescr_vblank(void)
{
- num_vbl++;
+ static int bank, bankdir, theta, scale;
+ int32_t sa, ca;
+
+ theta = -(bank << 3);
+ scale = MAXBANK + (abs(bank) >> 3);
+ sa = SIN(theta) / scale;
+ ca = COS(theta) / scale;
+
+ REG_BG2X = -ca * 120 - sa * 80 + (120 << 8);
+ REG_BG2Y = sa * 120 - ca * 80 + (80 << 8);
+
+ REG_BG2PA = ca;
+ REG_BG2PB = sa;
+ REG_BG2PC = -sa;
+ REG_BG2PD = ca;
+
+ if((input & (BN_LT | BN_RT)) == 0) {
+ if(bank) {
+ bank -= bankdir << 4;
+ }
+ } else if(input & BN_LT) {
+ bankdir = -1;
+ if(bank > -MAXBANK) bank -= 16;
+ } else if(input & BN_RT) {
+ bankdir = 1;
+ if(bank < MAXBANK) bank += 16;
+ }
+}
+
+/*
+static uint16_t skygrad[] __attribute__((section(".data"))) = {
+
+ 0x662a, 0x660a, 0x660a, 0x660b, 0x660b, 0x660b, 0x660b, 0x6a0b, 0x6a0c,
+ 0x6a0c, 0x6a0c, 0x6a0c, 0x6a0c, 0x6a0d, 0x6a0d, 0x6a0d, 0x6a0d, 0x6a0d,
+ 0x6a0d, 0x6a0e, 0x6e0e, 0x6e0e, 0x6e0e, 0x6e0e, 0x6e0f, 0x6e0f, 0x6e0f,
+ 0x6e0f, 0x6e0f, 0x6e0f, 0x6e10, 0x6e10, 0x7210, 0x7210, 0x7210, 0x7211,
+ 0x7211, 0x7211, 0x71f1, 0x71f1, 0x71f2, 0x71f2, 0x71f2, 0x71f2, 0x71f2,
+ 0x75f2, 0x75f3, 0x75f3, 0x75f3, 0x75f3, 0x75f3, 0x75f4, 0x75f4, 0x75f4,
+ 0x75f4, 0x75f4, 0x75f5, 0x79f5, 0x79f5, 0x79f5, 0x79f5, 0x79f5, 0x79f6,
+ 0x79f6, 0x79f6, 0x79f6, 0x79f6, 0x79f7, 0x79f7, 0x79f7, 0x7df7, 0x7df7,
+ 0x7df7, 0x7df8, 0x7df8, 0x7df8, 0x7dd8, 0x7dd8, 0x7dd9, 0x7dd9,
+
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9,
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9,
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9,
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9,
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9,
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9,
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9,
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9,
+ 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9, 0x7dd9
+};
+
+ARM_IWRAM
+static void hblank(void)
+{
+ int vcount = REG_VCOUNT;
+ gba_bgpal[255] = skygrad[vcount];
}
+*/
projects / gbajam22 / blobdiff