bendns' repos / ArduinoStuff
arduino stuffs
Diffstat (limited to 'mp3player/arduino/display/display.h')
-rw-r--r--mp3player/arduino/display/display.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/mp3player/arduino/display/display.h b/mp3player/arduino/display/display.h
new file mode 100644
index 0000000..2445934
--- /dev/null
+++ b/mp3player/arduino/display/display.h
@@ -0,0 +1,68 @@
+#ifndef DISPLAY_H
+#define DISPLAY_H
+
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 64
+
+#include "freeserif.h"
+#include "splash.h"
+#include <Adafruit_SSD1306.h>
+#include <Wire.h>
+
+static inline float lerp(float from, float to, float weight) { return from + (to - from) * weight; }
+
+namespace OLED {
+
+Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
+
+inline void print(const String s) { oled.print(s); }
+inline void println(const String s) { oled.println(s); }
+inline void clear() { oled.clearDisplay(); }
+inline void flush() { oled.display(); }
+
+// Adafruit_GFX::drawBitmap(..., size_x, size_y). adds multiplication factors
+void draw_bitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color, uint8_t size_x,
+ uint8_t size_y) {
+ int16_t i, j, byteWidth = (w + 7) / 8;
+
+ for (j = 0; j < h; j++)
+ for (i = 0; i < w; i++)
+ if (pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) {
+ if (size_x == 0 && size_y == 0)
+ oled.drawPixel(x + i, y + j, color);
+ else
+ oled.drawRect(x + i * size_x, y + j * size_y, size_x, size_y, color);
+ }
+}
+
+#define SPLASH_SCALE 2
+#define SPLASH_BOTTOM (SCREEN_HEIGHT - SPLASH_SIZE) * (SPLASH_SCALE * SPLASH_SCALE)
+#define SPLASH_MIDDLE SCREEN_WIDTH / SPLASH_SCALE - SPLASH_SIZE
+
+void show_splash() {
+ for (unsigned int c = 0; c < 2; c++) {
+ for (unsigned int i = 0; i < 9; i++) {
+ clear();
+ const int16_t y_pos = lerp(SPLASH_BOTTOM, 0 - (SPLASH_SIZE * SPLASH_SCALE) - 30, (i + 1) / 10.);
+ const int16_t x_pos = (rand() % 10 - 5) + SPLASH_MIDDLE;
+ draw_bitmap(x_pos, y_pos, ships[i], SPLASH_SIZE, SPLASH_SIZE, WHITE, SPLASH_SCALE, SPLASH_SCALE);
+ flush();
+ delay(20);
+ }
+ delay(40);
+ }
+}
+
+// boot oled
+void begin() {
+ oled.begin(SSD1306_SWITCHCAPVCC, 0x3C);
+ oled.clearDisplay();
+ oled.setFont(&FreeSerif9pt7b);
+ oled.setTextSize(1);
+ oled.setTextColor(SSD1306_WHITE);
+ oled.setCursor(0, 15);
+ show_splash();
+}
+
+} // namespace OLED
+#endif \ No newline at end of file