Add sprite bounce benchmark

1 files changed, 83 insertions, 2 deletions

diff --git a/src/main.c b/src/main.c
index 14e04e9..39b7a2c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -11,7 +11,7 @@ WITH REGARD TO THIS SOFTWARE.
 
 #include "gba/gba.h"
 
-#include "renderer_m4.c"
+#include "renderer_m0.c"
 
 //
 // Config parameters.
@@ -132,6 +132,86 @@ test_all_static(void) {
     }
 }
 
+void
+test_sprites_bounce(void) {
+    u8 sprite_icn[8] = {
+        0xf8, 0xf8, 0xf8, 0xf8 | 0x3e, 0xf8 | 0x3e, 0x3e, 0x3e, 0x00,
+    };
+    u8 sprite_chr[16] = {
+        0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x3e, 0x3e, 0x3e, 0x3e, 0x3e, 0x00,
+    };
+    int x = 50;
+    int y = 50;
+    int inc_x = 1;
+    int inc_y = 1;
+    typedef struct Sprite {
+        int x;
+        int y;
+        int inc_x;
+        int inc_y;
+        int clr;
+        int flip_x;
+        int flip_y;
+    } Sprite;
+    Sprite sprites[] = {
+        {50, 50, 1, 1, 1, 0, 0},
+        {20, 30, 2, 3, 2, 0, 1},
+        {10, 100, -2, -1, 3, 1, 0},
+        {200, 80, 1, -2, 4, 1, 1},
+        {50, 50, 1, 1, 1, 0, 0},
+        {20, 30, 2, 3, 2, 0, 1},
+        {10, 100, -2, -1, 3, 1, 0},
+        {200, 80, 1, -2, 4, 1, 1},
+    };
+    int should_move = 1;
+    while (true) {
+        poll_keys();
+        if (key_tap(KEY_A)) {
+            break;
+        }
+        if (key_pressed(KEY_B)) {
+            should_move = 0;
+        } else {
+            should_move = 1;
+        }
+        bios_vblank_wait();
+        FRAME_START();
+        PROF(flip_buffer(), flip_cycles);
+        PROF(screen_fill(8), clear_cycles);
+        for (size_t i = 0; i < LEN(sprites); i++) {
+            Sprite *s = &sprites[i];
+            PROF(draw_icn(
+                    s->x, s->y,
+                    sprite_icn,
+                    s->clr,
+                    s->flip_x, s->flip_y), icn_cycles);
+            PROF(draw_chr(
+                    (240 - s->x - 8), (160 - s->y - 8),
+                    sprite_chr,
+                    s->flip_x, s->flip_y), chr_cycles);
+            s->x += s->inc_x * should_move;
+            s->y += s->inc_y * should_move;
+            if (s->x > (240 - 8) && s->inc_x > 0) {
+                s->x = (240 - 8);
+                s->inc_x *= -1;
+            } else if (s->x <= 0 && s->inc_x < 0){
+                s->x = 0;
+                s->inc_x *= -1;
+            }
+            if (s->y > (160 - 8) && s->inc_y > 0) {
+                s->y = 160 - 8;
+                s->inc_y *= -1;
+            } else if (s->y <= 0 && s->inc_y < 0){
+                s->y = 0;
+                s->inc_y *= -1;
+            }
+        }
+        FRAME_END();
+        PROF_SHOW();
+    }
+}
+
 int main(void) {
     // Adjust system wait times.
     SYSTEM_WAIT = SYSTEM_WAIT_CARTRIDGE;
@@ -143,10 +223,11 @@ int main(void) {
     irq_init();
     irs_set(IRQ_VBLANK, irs_stub);
 
-    // TODO: Test sprites in movement.
+    // TODO: Test for text rendering.
     // TODO: Verify all works well, there were some modifications and
     // bugfixes on the ppu of the uxngba branch.
     while (true) {
+        test_sprites_bounce();
         test_moving_line();
         test_all_static();
     }