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https://github.com/kbeckmann/game-and-watch-retro-go.git
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47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
#ifndef _LCD_H_
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#define _LCD_H_
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#include "stm32h7xx_hal.h"
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#include <stdint.h>
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#define GW_LCD_WIDTH 320
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#define GW_LCD_HEIGHT 240
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#ifdef GW_LCD_MODE_LUT8
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extern uint8_t framebuffer1[GW_LCD_WIDTH * GW_LCD_HEIGHT] __attribute__((section (".lcd1"))) __attribute__ ((aligned (16)));
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extern uint8_t framebuffer2[GW_LCD_WIDTH * GW_LCD_HEIGHT] __attribute__((section (".lcd2"))) __attribute__ ((aligned (16)));
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typedef uint8_t pixel_t;
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#else
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extern uint16_t framebuffer1[GW_LCD_WIDTH * GW_LCD_HEIGHT] __attribute__((section (".lcd1"))) __attribute__ ((aligned (16)));
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extern uint16_t framebuffer2[GW_LCD_WIDTH * GW_LCD_HEIGHT] __attribute__((section (".lcd2"))) __attribute__ ((aligned (16)));
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typedef uint16_t pixel_t;
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#endif // GW_LCD_MODE_LUT8
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// To be shared between NES and GB. NES is larger.
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extern uint8_t emulator_framebuffer[(256 + 8 + 8) * 240] __attribute__((section (".emulator_data")));
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// 0 => framebuffer1
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// 1 => framebuffer2
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extern uint32_t active_framebuffer;
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void lcd_deinit(SPI_HandleTypeDef *spi);
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void lcd_init(SPI_HandleTypeDef *spi, LTDC_HandleTypeDef *ltdc);
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void lcd_backlight_set(uint8_t brightness);
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void lcd_backlight_on();
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void lcd_backlight_off();
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void lcd_swap(void);
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void lcd_sync(void);
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void* lcd_get_active_buffer(void);
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void* lcd_get_inactive_buffer(void);
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void lcd_set_buffers(uint16_t *buf1, uint16_t *buf2);
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void lcd_wait_for_vblank(void);
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uint32_t is_lcd_swap_pending(void);
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// To be used by fault handlers
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void lcd_reset_active_buffer(void);
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#endif
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