From af05a2979f97d00eab36261374af1eaf2ac3c833 Mon Sep 17 00:00:00 2001
From: Bad Diode <bd@badd10de.dev>
Date: Tue, 27 Apr 2021 12:36:28 +0200
Subject: Add DMA control macros and small memory copy test

---
 src/main.c | 96 ++++++++++++++++++--------------------------------------------
 1 file changed, 28 insertions(+), 68 deletions(-)

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
index 3bd5865..efd460f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -22,83 +22,43 @@ int main(void) {
     init_sprite_pal(0, COLOR_WHITE);
     init_sprites(0);
     init_button_sprites();
+    Color colors[16] = {
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+        COLOR_BLUE,
+    };
+    // These should be equivalent here, but remember that the dma_copy and
+    // dma_fill functions will always work on U32 chunks.
+    //
+    // memcpy(&PAL_BUFFER_SPRITES[0], colors, 16 * sizeof(Color));
+    // dma_copy(&PAL_BUFFER_SPRITES[0], colors, 16 * sizeof(Color), 3);
+
+    u32 color = COLOR_RED | COLOR_RED << 16;
+    dma_fill(&PAL_BUFFER_SPRITES[0], color, 16 * sizeof(Color), 3);
 
     // Initialize text engine.
-    txt_init(0, COLOR_RED, 0);
-    txt_position(0, 6);
-    txt_printf("Strings: %s\n", "Hello World");
-    txt_printf("Signed ints: %d\n", -100000);
-    txt_printf("Unsigned ints: %u\n", 1234567);
-    txt_printf("Hex values: 0x%x\n", 1024);
+    // txt_init(0, COLOR_RED, 0);
+    // txt_printf("TEST");
 
     int frame_counter = 0;
-    int x = 0;
-    int y = 0;
     while(true) {
         wait_vsync();
         poll_keys();
 
-        txt_position(0, 0);
-        txt_printf("Frame counter: %d\n", frame_counter);
-
-        if (key_hold(KEY_DOWN)) {
-            y += 3;
-        }
-        if (key_hold(KEY_UP)) {
-            y -= 3;
-        }
-        if (key_hold(KEY_LEFT)) {
-            x -= 3;
-        }
-        if (key_hold(KEY_RIGHT)) {
-            x += 3;
-        }
-
-        if (key_pressed(KEY_A)) {
-            txt_clear_line();
-            txt_printf("Pressed key: A");
-        }
-        if (key_pressed(KEY_B)) {
-            txt_clear_line();
-            txt_printf("Pressed key: B");
-        }
-        if (key_pressed(KEY_L)) {
-            txt_clear_line();
-            txt_printf("Pressed key: L");
-        }
-        if (key_pressed(KEY_R)) {
-            txt_clear_line();
-            txt_printf("Pressed key: R");
-        }
-        if (key_pressed(KEY_START)) {
-            txt_clear_line();
-            txt_printf("Pressed key: Start");
-        }
-        if (key_pressed(KEY_SELECT)) {
-            txt_clear_line();
-            txt_printf("Pressed key: Select");
-        }
-        if (key_pressed(KEY_UP)) {
-            txt_clear_line();
-            txt_printf("Pressed key: Up");
-        }
-        if (key_pressed(KEY_DOWN)) {
-            txt_clear_line();
-            txt_printf("Pressed key: Down");
-        }
-        if (key_pressed(KEY_LEFT)) {
-            txt_clear_line();
-            txt_printf("Pressed key: Left");
-        }
-        if (key_pressed(KEY_RIGHT)) {
-            txt_clear_line();
-            txt_printf("Pressed key: Right");
-        }
-
         frame_counter++;
-        // BG_H_SCROLL_0 = x;
-        // BG_V_SCROLL_0 = y;
-
         update_button_sprites();
     };
 
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