samples: subsystem: display: cfb: Improve to using more CFB functions (2c22e067) · Commits · Wenxi XU / zephyr

samples/subsys/display/cfb/src/main.c

+13 −5

Original line number	Diff line number	Diff line
		@@ -12,6 +12,8 @@
		int main(void)
		{
		const struct device *dev;
		uint16_t x_res;
		uint16_t y_res;
		uint16_t rows;
		uint8_t ppt;
		uint8_t font_width;
		@@ -39,6 +41,8 @@ int main(void)

		display_blanking_off(dev);

		x_res = cfb_get_display_parameter(dev, CFB_DISPLAY_WIDTH);
		y_res = cfb_get_display_parameter(dev, CFB_DISPLAY_HEIGH);
		rows = cfb_get_display_parameter(dev, CFB_DISPLAY_ROWS);
		ppt = cfb_get_display_parameter(dev, CFB_DISPLAY_PPT);

		@@ -52,25 +56,29 @@ int main(void)
		}

		printf("x_res %d, y_res %d, ppt %d, rows %d, cols %d\n",
		cfb_get_display_parameter(dev, CFB_DISPLAY_WIDTH),
		cfb_get_display_parameter(dev, CFB_DISPLAY_HEIGH),
		x_res,
		y_res,
		ppt,
		rows,
		cfb_get_display_parameter(dev, CFB_DISPLAY_COLS));

		cfb_framebuffer_invert(dev);

		cfb_set_kerning(dev, 3);

		while (1) {
		for (int i = 0; i < rows; i++) {
		for (int i = 0; i < MIN(x_res, y_res); i++) {
		cfb_framebuffer_clear(dev, false);
		if (cfb_print(dev,
		"0123456789mMgj!\"§$%&/()=",
		0, i * ppt)) {
		i, i)) {
		printf("Failed to print a string\n");
		continue;
		}

		cfb_framebuffer_finalize(dev);
		#if defined(CONFIG_ARCH_POSIX)
		k_sleep(K_MSEC(100));
		k_sleep(K_MSEC(20));
		#endif
		}
		}