60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
#pragma once
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#include <common.h>
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typedef struct {
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//registers
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u8 lcdc;
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u8 lcds;
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u8 scroll_y;
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u8 scroll_x;
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u8 ly;
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u8 ly_compare;
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u8 dma;
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u8 bg_palette;
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u8 obj_palette[2];
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u8 win_y;
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u8 win_x;
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//other data...
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u32 bg_colors[4];
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u32 sp1_colors[4];
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u32 sp2_colors[4];
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} lcd_context;
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typedef enum {
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MODE_HBLANK,
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MODE_VBLANK,
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MODE_OAM,
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MODE_XFER
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} lcd_mode;
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lcd_context *lcd_get_context();
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#define LCDC_BGW_ENABLE (BIT(lcd_get_context()->lcdc, 0))
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#define LCDC_OBJ_ENABLE (BIT(lcd_get_context()->lcdc, 1))
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#define LCDC_OBJ_HEIGHT (BIT(lcd_get_context()->lcdc, 2) ? 16 : 8)
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#define LCDC_BG_MAP_AREA (BIT(lcd_get_context()->lcdc, 3) ? 0x9C00 : 0x9800)
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#define LCDC_BGW_DATA_AREA (BIT(lcd_get_context()->lcdc, 4) ? 0x8000 : 0x8800)
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#define LCDC_WIN_ENABLE (BIT(lcd_get_context()->lcdc, 5))
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#define LCDC_WIN_MAP_AREA (BIT(lcd_get_context()->lcdc, 6) ? 0x9C00 : 0x9800)
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#define LCDC_LCD_ENABLE (BIT(lcd_get_context()->lcdc, 7))
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#define LCDS_MODE ((lcd_mode)(lcd_get_context()->lcds & 0b11))
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#define LCDS_MODE_SET(mode) { lcd_get_context()->lcds &= ~0b11; lcd_get_context()->lcds |= mode; }
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#define LCDS_LYC (BIT(lcd_get_context()->lcds, 2))
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#define LCDS_LYC_SET(b) BIT_SET(lcd_get_context()->lcds, 2, b)
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typedef enum {
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SS_HBLANK = (1 << 3),
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SS_VBLANK = (1 << 4),
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SS_OAM = (1 << 5),
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SS_LYC = (1 << 6)
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} stat_src;
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#define LCDS_STAT_INT(src) (lcd_get_context()->lcds & src)
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void lcd_init();
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u8 lcd_read(u16 address);
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void lcd_write(u16 address, u8 value); |