gp_sw_cursor.h

// SPDX-License-Identifier: LGPL-2.1-or-later
/*
 * Copyright (C) 2024 Cyril Hrubis <metan@ucw.cz>
 */
 
#ifndef GP_SW_CURSOR
#define GP_SW_CURSOR
 
#include <stdint.h>
#include <core/gp_types.h>
#include <core/gp_pixel.h>
 
typedef struct gp_cursor {
        /*
         * Offset to start drawing the cursor in pixels.
         */
        int8_t x_off, y_off;
        /*
         * Cursor pixmap size.
         */
        uint8_t w, h;
        /*
         * Four pixels per byte with value:
         *
         * The rows have to be byte aligned.
         *
         * 0 - do not draw anything
         * 1 - foreground (all pixel bits set to 1)
         * 2 - background (all pixel bits set to 0)
         */
        uint8_t pixmap[];
} gp_cursor;
 
extern gp_cursor *gp_cursors_32[];
 
void gp_cursor_render(gp_cursor *self, gp_pixmap *dst, uint32_t x_off, uint32_t y_off);
 
 
typedef struct gp_sw_cursor {
        /* Current cursor position */
        uint32_t x;
        uint32_t y;
 
        uint32_t wh;
 
        uint32_t hidden:1;
 
} gp_sw_cursor;
 
int gp_sw_cursor_init(gp_sw_cursor *self, gp_pixel_type type);
 
void gp_sw_cursor_update_rect(gp_pixmap *src, void *dst,
                              uint32_t x_start, uint32_t y_start,
                              uint32_t x_end, uint32_t y_end);
 
void gp_sw_cursor_move(gp_pixmap *src, void *dst, uint32_t x, uint32_t y);
 
#endif /* GP_SW_CURSOR */