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This commit is contained in:
GriffinR
2023-05-09 22:04:26 -04:00
parent 1497719f8c
commit 8b37b4292a
2 changed files with 40 additions and 17 deletions
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17
include/gba/defines.h
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@@ -64,14 +64,23 @@
#define ROM_HEADER_SIZE 0xC0
// Dimensions of a tile in pixels
#define TILE_WIDTH 8
#define TILE_HEIGHT 8
// Dimensions of the GBA screen in pixels
#define DISPLAY_WIDTH 240
#define DISPLAY_HEIGHT 160
#define DISPLAY_TILE_WIDTH (DISPLAY_WIDTH / 8)
#define DISPLAY_TILE_HEIGHT (DISPLAY_HEIGHT / 8)
// Dimensions of the GBA screen in tiles
#define DISPLAY_TILE_WIDTH (DISPLAY_WIDTH / TILE_WIDTH)
#define DISPLAY_TILE_HEIGHT (DISPLAY_HEIGHT / TILE_HEIGHT)
#define TILE_SIZE_4BPP 32
#define TILE_SIZE_8BPP 64
// Size of different tile formats in bytes
#define TILE_SIZE(bpp)((bpp) * TILE_WIDTH * TILE_HEIGHT / 8)
#define TILE_SIZE_1BPP TILE_SIZE(1) // 8
#define TILE_SIZE_4BPP TILE_SIZE(4) // 32
#define TILE_SIZE_8BPP TILE_SIZE(8) // 64
#define TILE_OFFSET_4BPP(n) ((n) * TILE_SIZE_4BPP)
#define TILE_OFFSET_8BPP(n) ((n) * TILE_SIZE_8BPP)