Add back cursor drawing

1 files changed, 0 insertions, 78 deletions

diff --git a/src/renderer_m0.c b/src/renderer_m0.c
index bf15f56..eb19718 100644
--- a/src/renderer_m0.c
+++ b/src/renderer_m0.c
@@ -615,84 +615,6 @@ draw_icn(size_t x, size_t y, u8 *sprite, u8 clr, u8 flip_x, u8 flip_y) {
     dirty_tiles[tile_y] |= dirty;
 }
 
-IWRAM_CODE
-void
-draw_tile(size_t x, size_t y, Tile *tile, u8 clr) {
-    BOUNDCHECK_SCREEN(x, y);
-    size_t tile_x0 = x / 8;
-    size_t tile_x1 = (x + 7) / 8;
-    size_t tile_y = y / 8;
-    size_t start_col = x % 8;
-    size_t start_row = y % 8;
-    size_t shift_left = start_col * 4;
-    size_t shift_right = (8 - start_col) * 4;
-    u32 dirty = (1 << tile_x0) | (1 << tile_x1);
-    u32 *dst = &backbuf[start_row + (tile_x0 + tile_y * 32) * 8];
-    // BOUNDCHECK_SCREEN(x, y);
-
-    // // Find row position for the given x/y coordinates.
-    // size_t tile_x = x / 8;
-    // size_t tile_y = y / 8;
-    // size_t start_col = x % 8;
-    // size_t start_row = y % 8;
-
-    // // Get a pointer to the backbuffer and the tile row.
-    // size_t pos = start_row + (tile_x + tile_y * 32) * 8;
-    // u32 *backbuffer = &BACKBUF[pos];
-    u32 *row = tile;
-    u32 row_mask_left = 0xFFFFFFFF << shift_left;
-    u32 row_mask_right = 0xFFFFFFFF >> shift_right;
-
-    // Draw the tiles. There are 4 possible cases:
-    //     1. The tile is exactly at the tile boundary.
-    //     2. The tile spans 2 tiles horizontally.
-    //     3. The tile spans 2 tiles vertically.
-    //     4. The tile spans 4 tiles.
-    if (start_col == 0 && start_row == 0) {
-        for (size_t i = 0; i < (8 - start_row); i++, dst++) {
-            BOUNDCHECK_SCREEN(x, y + i);
-            dst[0] = (dst[0] & ~row_mask_left) | row[i] * clr;
-        }
-        dirty_tiles[tile_y] |= 1 << tile_x0;
-    } else if (start_row == 0) {
-        for (size_t i = 0; i < 8; i++, dst++) {
-            BOUNDCHECK_SCREEN(x, y + i);
-            dst[0] = (dst[0] & ~row_mask_left) | (row[i] * clr << shift_left);
-            dst[8] = (dst[8] & ~row_mask_right) | (row[i] * clr >> shift_right);
-        }
-        dirty_tiles[tile_y] |= 1 << tile_x0;
-        dirty_tiles[tile_y] |= 1 << (tile_x0 + 1);
-    } else if (start_col == 0) {
-        for (size_t i = 0; i < (8 - start_row); i++, dst++) {
-            BOUNDCHECK_SCREEN(x, y + i);
-            dst[0] = (dst[0] & ~row_mask_left) | row[i] * clr;
-        }
-        dst += 8 * 31;
-        for (size_t i = (8 - start_row); i < 8; i++, dst++) {
-            BOUNDCHECK_SCREEN(x, y + i);
-            dst[0] = (dst[0] & ~row_mask_left) | row[i] * clr;
-        }
-        dirty_tiles[tile_y] |= 1 << tile_x0;
-        dirty_tiles[tile_y + 1] |= 1 << tile_x0;
-    } else {
-        for (size_t i = 0; i < (8 - start_row); i++, dst++) {
-            BOUNDCHECK_SCREEN(x, y + i);
-            dst[0] = (dst[0] & ~row_mask_left) | (row[i] * clr << shift_left);
-            dst[8] = (dst[8] & ~row_mask_right) | (row[i] * clr >> shift_right);
-        }
-        dst += 8 * 31;
-        for (size_t i = (8 - start_row); i < 8; i++, dst++) {
-            BOUNDCHECK_SCREEN(x, y + i);
-            dst[0] = (dst[0] & ~row_mask_left) | (row[i] * clr << shift_left);
-            dst[8] = (dst[8] & ~row_mask_right) | (row[i] * clr >> shift_right);
-        }
-        dirty_tiles[tile_y] |= 1 << tile_x0;
-        dirty_tiles[tile_y] |= 1 << (tile_x0 + 1);
-        dirty_tiles[tile_y + 1] |= 1 << tile_x0;
-        dirty_tiles[tile_y + 1] |= 1 << (tile_x0 + 1);
-    }
-}
-
 //
 // Flipping buffers/copying memory.
 //