1f4c460f4f
Add GitHub Actions CI with automated build and test. Implement real terminal I/O with raw mode (enable_raw/disable_raw, proper INKEY$ polling via VMIN=0/VTIME=0, INPUT$ function). Add Sixel graphics engine with virtual framebuffer (SCREEN 1: 320x200, SCREEN 2: 640x200), Bresenham line drawing, midpoint circle, flood fill PAINT, DRAW mini-language parser, and Sixel encoder with RLE. Replace all graphics stubs with real implementations (PSET, LINE, CIRCLE, DRAW, PAINT, COLOR, SCREEN, POINT). Fix AND/OR/XOR operator precedence to be lower than relational operators. Add 13 classic test programs (39 total). Bump version to 0.5.0.
43 lines
1001 B
C
43 lines
1001 B
C
#ifndef GW_HAL_H
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#define GW_HAL_H
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#include <stdint.h>
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#include <stdbool.h>
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/* Hardware Abstraction Layer vtable */
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typedef struct hal_ops {
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/* Terminal I/O */
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void (*putch)(int ch);
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void (*puts)(const char *s);
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int (*getch)(void); /* blocking read */
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bool (*kbhit)(void); /* key available? */
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void (*locate)(int row, int col);
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int (*get_cursor_row)(void);
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int (*get_cursor_col)(void);
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void (*cls)(void);
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void (*set_width)(int cols);
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/* Raw mode for INKEY$/INPUT$ */
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void (*enable_raw)(void);
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void (*disable_raw)(void);
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/* Write raw bytes bypassing cursor tracking (for Sixel, etc.) */
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void (*write_raw)(const char *data, int len);
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/* Terminal properties */
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int screen_width;
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int screen_height;
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bool is_tty;
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/* Lifecycle */
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void (*init)(void);
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void (*shutdown)(void);
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} hal_ops_t;
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extern hal_ops_t *gw_hal;
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/* Platform implementations */
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hal_ops_t *hal_posix_create(void);
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#endif
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