mch2022-template-app/main/main.c

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// This file contains a simple hello world app which you can base you own apps on.
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#include "main.h"
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static pax_buf_t buf;
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xQueueHandle buttonQueue;
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static const char *TAG = "mch2022-demo-app";
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void disp_flush() {
ili9341_write(get_ili9341(), buf.buf);
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}
void exit_to_launcher() {
REG_WRITE(RTC_CNTL_STORE0_REG, 0);
esp_restart();
}
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void app_main() {
// Init HW.
bsp_init();
bsp_rp2040_init();
buttonQueue = get_rp2040()->queue;
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// Init GFX.
pax_buf_init(&buf, NULL, 320, 240, PAX_BUF_16_565RGB);
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// Init NVS.
nvs_flash_init();
// Init (but not connect to) WiFi.
wifi_init();
while (1) {
// Pick a random background color.
int hue = esp_random() & 255;
pax_col_t col = pax_col_hsv(hue, 255 /*saturation*/, 255 /*brighness*/);
// Show some random color hello world.
pax_background(&buf, col);
char *text = "Hello, World!";
const pax_font_t *font = pax_get_font("saira condensed");
pax_vec1_t dims = pax_text_size(font, font->default_size, text);
pax_draw_text(
&buf, 0xff000000, font, font->default_size,
(buf.width - dims.x) / 2.0,
(buf.height - dims.y) / 2.0,
text
);
disp_flush();
// Await any button press and do another cycle.
rp2040_input_message_t message;
xQueueReceive(buttonQueue, &message, portMAX_DELAY);
if (message.input == RP2040_INPUT_BUTTON_HOME && message.state) {
// If home is pressed, exit to launcher.
exit_to_launcher();
}
}
}