Lukas Höppner
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
#ifndef NOVA64_FRAMEBUFFER_H
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#define NOVA64_FRAMEBUFFER_H
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#include "nova64_core.h"
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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// Display dimensions
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#define NOVA64_DISPLAY_WIDTH 480
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#define NOVA64_DISPLAY_HEIGHT 800
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#define NOVA64_DISPLAY_PIXELS (NOVA64_DISPLAY_WIDTH * NOVA64_DISPLAY_HEIGHT)
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// Pixel format: RGB565 (uint16_t)
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typedef uint16_t pixel_t;
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// Framebuffer size in bytes (768,000 bytes)
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#define NOVA64_FRAMEBUFFER_SIZE_BYTES (NOVA64_DISPLAY_PIXELS * sizeof(pixel_t))
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// Alignment requirement for PPU/DMA2D on ESP32-P4 (cache line alignment)
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#define NOVA64_DMA_ALIGNMENT 64
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typedef struct {
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pixel_t *front_buffer; // Buffer currently being read by display/MIPI-DSI
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pixel_t *back_buffer; // Buffer currently being written to by WASM/PPU
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volatile bool vsync_pending; // True when a buffer swap has been requested
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uint32_t frame_count; // Frame counter
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} nova64_framebuffer_t;
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// Global instance access
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NOVA64_API nova64_framebuffer_t nova64_framebuffer;
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// Function prototypes
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bool nova64_framebuffer_init(void);
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void nova64_framebuffer_destroy(void);
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void nova64_framebuffer_swap(void);
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void nova64_framebuffer_clear(pixel_t color);
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#endif // NOVA64_FRAMEBUFFER_H
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