42 行
1.0 KiB
C
42 行
1.0 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "spilcd_gfx.h"
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void lcd_drawPixel(lcd_t* lcd, uint8 x, uint8 y, uint8 r, uint8 g, uint8 b)
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{
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if(lcd_setWindow(lcd, x, y, x, y)) return;
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lcd_pushPixel(lcd, r, g, b);
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}
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void lcd_fillRect(lcd_t* lcd, uint8 x, uint8 y, uint8 w, uint8 h,
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uint8 r, uint8 g, uint8 b)
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{
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if((w == 0) || (h == 0)) return;
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if((x+w-1) >= lcd->width) w = lcd->width - x;
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if((y+h-1) >= lcd->height) h = lcd->height - y;
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if(lcd_setWindow(lcd, x, y, x+w-1, y+h-1)) return;
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#define BUFFER_PIXELS 64
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int wh = w*h;
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uint8 buffer[BUFFER_PIXELS * sizeof(uint8) * 3];
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for (int p = 0; p < wh; p += BUFFER_PIXELS) {
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for(int pb = 0; pb < BUFFER_PIXELS; pb++) {
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buffer[pb * 3 + 0] = r;
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buffer[pb * 3 + 1] = g;
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buffer[pb * 3 + 2] = b;
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}
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int rem = wh - p;
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lcd_pushPixels(lcd, buffer, ((rem < BUFFER_PIXELS) ? rem : BUFFER_PIXELS));
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}
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}
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void lcd_fillScreen(lcd_t* lcd, uint8 r, uint8 g, uint8 b)
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{
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lcd_fillRect(lcd, 0, 0,
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lcd->width, lcd->height,
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r, g, b);
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}
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