nds_test2
diff src/main.c @ 2:dd8c9847bae9
cube
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Mon, 29 Jan 2018 14:40:45 +0200 |
| parents | d625ba001a62 |
| children |
line diff
1.1 --- a/src/main.c Mon Jan 29 03:48:05 2018 +0200 1.2 +++ b/src/main.c Mon Jan 29 14:40:45 2018 +0200 1.3 @@ -3,6 +3,7 @@ 1.4 #include "dsregs.h" 1.5 #include "ds3.h" 1.6 1.7 +static void draw_cube(void); 1.8 static void xorpat(void *addr, int xsz, int ysz); 1.9 1.10 static void *vram = VRAM_LCDC_PTR; 1.11 @@ -53,37 +54,39 @@ 1.12 1.13 ds3_enable(DS3_POLYGON_SMOOTH); 1.14 1.15 - REG_POLYGON_ATTR = 0x001f00c0; /* alpha = 31, cull none */ 1.16 + REG_POLYGON_ATTR = 0x001f0080; /* alpha = 31, cull back */ 1.17 1.18 ds3_matrix_mode(DS3_PROJECTION); 1.19 ds3_load_identity(); 1.20 - ds3_scale(49152, 65536, 65536); 1.21 + /*ds3_ortho(-87381, 87381, -65536, 65536, -65536, 65536);*/ 1.22 + /*ds3_orthof(-1.3333, 1.33333, -1, 1, -1, 1);*/ 1.23 + ds3_perspectivef(45, 1.33333, 1.0, 100.0); 1.24 1.25 for(;;) { 1.26 int idx = frame & 0xff; 1.27 int32_t scale = (sintab[(frame >> 1) & 0xff] >> 9) + 204; 1.28 int32_t sa = ((sintab[idx] >> 8) * scale) >> 8; 1.29 int32_t ca = ((costab[idx] >> 8) * scale) >> 8; 1.30 - 1.31 int32_t x = ca * -128 + sa * -96 + (128 << 8); 1.32 int32_t y = -sa * -128 + ca * -96 + (96 << 8); 1.33 1.34 - m[0] = ca << 8; m[1] = sa << 8; 1.35 - m[4] = -sa << 8; m[5] = ca << 8; 1.36 + ds3_matrix_mode(DS3_MODELVIEW); 1.37 + ds3_load_identity(); 1.38 + ds3_translate(0, 0, -0x30000); 1.39 1.40 - ds3_matrix_mode(DS3_MODELVIEW); 1.41 - ds3_load_matrix(m); 1.42 + m[0] = 0x10000; 1.43 + m[2] = m[8] = 0; 1.44 + m[5] = costab[idx]; m[6] = sintab[idx]; 1.45 + m[9] = -sintab[idx]; m[10] = costab[idx]; 1.46 + ds3_mult_matrix(m); 1.47 1.48 - ds3_begin(DS3_QUADS); 1.49 - ds3_color(RGB15(31, 0, 0)); 1.50 - ds3_vertex3(-0x8000, -0x8000, 0); 1.51 - ds3_color(RGB15(0, 31, 0)); 1.52 - ds3_vertex3(0x8000, -0x8000, 0); 1.53 - ds3_color(RGB15(0, 0, 31)); 1.54 - ds3_vertex3(0x8000, 0x8000, 0); 1.55 - ds3_color(RGB15(31, 0, 31)); 1.56 - ds3_vertex3(-0x8000, 0x8000, 0); 1.57 - ds3_end(); 1.58 + m[5] = 0x10000; 1.59 + m[6] = m[9] = 0; 1.60 + m[0] = costab[idx]; m[2] = -sintab[idx]; 1.61 + m[8] = sintab[idx]; 1.62 + ds3_mult_matrix(m); 1.63 + 1.64 + draw_cube(); 1.65 1.66 ds3_swap_buffers(); 1.67 while(REG_VCOUNT < 192); 1.68 @@ -100,6 +103,43 @@ 1.69 return 0; 1.70 } 1.71 1.72 +#define VOFFS 0x8000 1.73 +static void draw_cube(void) 1.74 +{ 1.75 + ds3_begin(DS3_QUADS); 1.76 + ds3_color(RGB15(31, 0, 0)); 1.77 + ds3_vertex3(-VOFFS, -VOFFS, VOFFS); 1.78 + ds3_vertex3(VOFFS, -VOFFS, VOFFS); 1.79 + ds3_vertex3(VOFFS, VOFFS, VOFFS); 1.80 + ds3_vertex3(-VOFFS, VOFFS, VOFFS); 1.81 + ds3_color(RGB15(0, 31, 0)); 1.82 + ds3_vertex3(VOFFS, -VOFFS, VOFFS); 1.83 + ds3_vertex3(VOFFS, -VOFFS, -VOFFS); 1.84 + ds3_vertex3(VOFFS, VOFFS, -VOFFS); 1.85 + ds3_vertex3(VOFFS, VOFFS, VOFFS); 1.86 + ds3_color(RGB15(0, 0, 31)); 1.87 + ds3_vertex3(VOFFS, -VOFFS, -VOFFS); 1.88 + ds3_vertex3(-VOFFS, -VOFFS, -VOFFS); 1.89 + ds3_vertex3(-VOFFS, VOFFS, -VOFFS); 1.90 + ds3_vertex3(VOFFS, VOFFS, -VOFFS); 1.91 + ds3_color(RGB15(31, 31, 0)); 1.92 + ds3_vertex3(-VOFFS, -VOFFS, -VOFFS); 1.93 + ds3_vertex3(-VOFFS, -VOFFS, VOFFS); 1.94 + ds3_vertex3(-VOFFS, VOFFS, VOFFS); 1.95 + ds3_vertex3(-VOFFS, VOFFS, -VOFFS); 1.96 + ds3_color(RGB15(31, 0, 31)); 1.97 + ds3_vertex3(-VOFFS, VOFFS, VOFFS); 1.98 + ds3_vertex3(VOFFS, VOFFS, VOFFS); 1.99 + ds3_vertex3(VOFFS, VOFFS, -VOFFS); 1.100 + ds3_vertex3(-VOFFS, VOFFS, -VOFFS); 1.101 + ds3_color(RGB15(0, 31, 31)); 1.102 + ds3_vertex3(VOFFS, -VOFFS, -VOFFS); 1.103 + ds3_vertex3(VOFFS, -VOFFS, VOFFS); 1.104 + ds3_vertex3(-VOFFS, -VOFFS, VOFFS); 1.105 + ds3_vertex3(-VOFFS, -VOFFS, -VOFFS); 1.106 + ds3_end(); 1.107 +} 1.108 + 1.109 static void xorpat(void *addr, int xsz, int ysz) 1.110 { 1.111 int i, j;