You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
+#include <stdlib.h>
#include <string.h>
#include "gbaregs.h"
#include "timer.h"
#include "keyb.h"
#include "intr.h"
#include "gfx.h"
+#include "xgl.h"
+#include "polyfill.h"
+#include "debug.h"
+#include "meshdata.h"
+#include "sprites.h"
+#include "dma.h"
+
+#define MENU_HEIGHT 17
+#define TRACK_HEIGHT 18
+#define VP_HEIGHT (160 - MENU_HEIGHT - TRACK_HEIGHT)
static void handle_keys(void);
extern struct { unsigned char r, g, b; } bgimg_cmap[];
extern unsigned char bgimg_pixels[];
+static int32_t cam_theta = 0x10000, cam_phi = -0x8000;
+
+static int show_obj = 1, show_del;
+
+#define AXIS0 0x10000
+#define AXIS1 0x80000
+
+static struct xvertex gridaxes[] = {
+ {AXIS0, 0, 0, 0, 0, 0, 92},
+ {AXIS1, 0, 0, 0, 0, 0, 92},
+ {-AXIS0, 0, 0, 0, 0, 0, 92},
+ {-AXIS1, 0, 0, 0, 0, 0, 92},
+ {0, 0, AXIS0, 0, 0, 0, 93},
+ {0, 0, AXIS1, 0, 0, 0, 93},
+ {0, 0, -AXIS0, 0, 0, 0, 93},
+ {0, 0, -AXIS1, 0, 0, 0, 93},
+
+ {0, 0, 0, 0, 0, 0, 92},
+ {AXIS1, 0, 0, 0, 0, 0, 92},
+ {0, 0, 0, 0, 0, 0, 92},
+ {-AXIS1, 0, 0, 0, 0, 0, 92},
+ {0, 0, 0, 0, 0, 0, 93},
+ {0, 0, AXIS1, 0, 0, 0, 93},
+ {0, 0, -0, 0, 0, 0, 93},
+ {0, 0, -AXIS1, 0, 0, 0, 93},
+};
+
int main(void)
{
int i;
+ unsigned int nframes = 0, backbuf;
uint16_t *cptr;
unsigned char r, g, b;
+ unsigned char *fbptr[2], *fb;
intr_init();
reset_msec_timer();
set_intr();
/* mode 4: 240x160 8bpp */
- REG_DISPCNT = DISPCNT_BG2 | 4;
+ REG_DISPCNT = DISPCNT_BG2 | DISPCNT_OBJ | 4;
+
+ fbptr[0] = (unsigned char*)VRAM_LFB_FB0_ADDR;
+ fbptr[1] = (unsigned char*)VRAM_LFB_FB1_ADDR;
+
+ set_bg_color(0xff, 31, 31, 31);
cptr = (uint16_t*)CRAM_BG_ADDR;
for(i=0; i<128; i++) {
b = bgimg_cmap[i].b >> 3;
*cptr++ = r | (g << 5) | (b << 10);
}
- memcpy((void*)VRAM_LFB_FB0_ADDR, bgimg_pixels, 240 * 160);
- memcpy((void*)VRAM_LFB_FB1_ADDR, bgimg_pixels, 240 * 160);
+ for(i=0; i<128; i++) {
+ r = i / 5 + 6;
+ *cptr++ = r | (r << 5) | (r << 10);
+ }
+ dma_copy16(3, fbptr[0], bgimg_pixels, 240 * 160 / 2);
+ dma_copy16(3, fbptr[1], bgimg_pixels, 240 * 160 / 2);
+
+ init_sprites();
+ set_sprite(0, 0, 512, 42, 42, 0, SPR_SZ64);
- /*key_repeat(500, 75, KEY_LEFT | KEY_RIGHT | KEY_DOWN | KEY_UP);*/
+ xgl_init();
+ xgl_viewport(0, 0, 240, VP_HEIGHT);
+ xgl_enable(XGL_LIGHTING);
+
+ key_repeat(75, 75, KEY_LEFT | KEY_RIGHT | KEY_DOWN | KEY_UP);
for(;;) {
+ handle_keys();
+
+ backbuf = ++nframes & 1;
+
+ fb = fbptr[backbuf] + 240 * MENU_HEIGHT;
+ polyfill_framebuffer(fb, 240, VP_HEIGHT);
+ memset(fb, 14, 240 * VP_HEIGHT);
+
+ xgl_load_identity();
+ xgl_translate(0, 0, 8 << 16);
+ xgl_rotate_x(cam_phi);
+ xgl_rotate_y(cam_theta);
+
+ if(show_obj) {
+ if(cam_theta < X_PI) {
+ xgl_draw(XGL_LINES, gridaxes + 2, 2); /* -X */
+ } else {
+ xgl_draw(XGL_LINES, gridaxes, 2); /* +X */
+ }
+ if(cam_theta < X_HPI || cam_theta > (3 * X_HPI)) {
+ xgl_draw(XGL_LINES, gridaxes + 4, 2); /* +Z */
+ } else {
+ xgl_draw(XGL_LINES, gridaxes + 6, 2); /* -Z */
+ }
+ if(show_obj == 1) {
+ xgl_draw(XGL_QUADS, cube, sizeof cube / sizeof *cube);
+ } else {
+ xgl_draw(XGL_TRIANGLES, suzanne, sizeof suzanne / sizeof *suzanne);
+ }
+ if(cam_theta < X_PI) {
+ xgl_draw(XGL_LINES, gridaxes, 2); /* +X */
+ } else {
+ xgl_draw(XGL_LINES, gridaxes + 2, 2); /* -X */
+ }
+ if(cam_theta < X_HPI || cam_theta > (3 * X_HPI)) {
+ xgl_draw(XGL_LINES, gridaxes + 6, 2); /* -Z */
+ } else {
+ xgl_draw(XGL_LINES, gridaxes + 4, 2); /* +Z */
+ }
+ } else {
+ xgl_draw(XGL_LINES, gridaxes + 8, 8);
+ }
+
wait_vblank();
- swap_buffers();
+ present(backbuf);
}
return 0;
update_keyb();
if(KEYPRESS(KEY_UP)) {
+ cam_phi += 0x2000;
+ if(cam_phi > X_HPI) cam_phi = X_HPI;
}
if(KEYPRESS(KEY_DOWN)) {
+ cam_phi -= 0x2000;
+ if(cam_phi < -X_HPI) cam_phi = -X_HPI;
}
if(KEYPRESS(KEY_LEFT)) {
+ cam_theta += 0x2000;
+ if(cam_theta > X_2PI) cam_theta -= X_2PI;
}
if(KEYPRESS(KEY_RIGHT)) {
+ cam_theta -= 0x2000;
+ if(cam_theta < 0) cam_theta += X_2PI;
+ }
+ if(KEYPRESS(KEY_RT)) {
+ if(++show_obj > 2) show_obj = 0;
+ }
+ if(KEYPRESS(KEY_LT)) {
+ if(--show_obj < 0) show_obj = 2;
+ }
+
+ if(KEYPRESS(KEY_A)) {
+ show_del ^= 1;
+ }
+ if(KEYPRESS(KEY_B)) {
+ if(show_del) {
+ show_obj = 0;
+ show_del = 0;
+ }
}
}
projects / gba_blender / blobdiff