From 4959741a7eaac3b429912a1ccfd7ebe06d41ef0d Mon Sep 17 00:00:00 2001 From: Bad Diode Date: Sun, 23 Apr 2023 20:45:37 +0200 Subject: Add back cursor drawing --- src/renderer_m0.c | 78 ------------------------------------------------------- 1 file changed, 78 deletions(-) (limited to 'src/renderer_m0.c') 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. // -- cgit v1.2.1