unsigned long testFilledTriangles() {
unsigned long start, t = 0;
int i, cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(ILI9341_BLACK);
start = micros();
for (i = min(cx, cy); i > 10; i -= 5) {
start = micros();
tft.fillTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
tft.Color565(0, i, i));
t += micros() - start;
tft.drawTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
tft.Color565(i, i, 0));
}
return t;
}
unsigned long testFilledRoundRects() {
unsigned long start;
int i, i2,
cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(ILI9341_BLACK);
start = micros();
for (i = min(tft.width(), tft.height()); i > 20; i -= 6) {
i2 = i / 2;
tft.fillRoundRect(cx - i2, cy - i2, i, i, i / 8, tft.Color565(0, i, 0));
}
return micros() - start;
}
unsigned long testRoundRects() {
unsigned long start;
int w, i, i2,
cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(ILI9341_BLACK);
w = min(tft.width(), tft.height());
start = micros();
for (i = 0; i < w; i += 6) {
i2 = i / 2;
tft.drawRoundRect(cx - i2, cy - i2, i, i, i / 8, tft.Color565(i, 0, 0));
}
return micros() - start;
}
unsigned long testTriangles() {
unsigned long start;
int n, i, cx = tft.width() / 2 - 1,
cy = tft.height() / 2 - 1;
tft.fillScreen(ILI9341_BLACK);
n = min(cx, cy);
start = micros();
for (i = 0; i < n; i += 5) {
tft.drawTriangle(
cx, cy - i, // peak
cx - i, cy + i, // bottom left
cx + i, cy + i, // bottom right
tft.Color565(0, 0, i));
}
return micros() - start;
}
unsigned long testRandomRects() {
unsigned long start;
int r, g, b, t, x, y, size = 16;
float i = 0.0f;
float pi = 3.1459; // 180 degrees
start = micros();
for (i = 0.0f; i < 2 * pi; i += (pi / 360.0)) {
r = (sin(i) * 127) + 128;
g = (sin(i + ((2 * pi) / 3.0)) * 127) + 128;
b = (sin(i + ((4 * pi) / 3.0)) * 127) + 128;
y = random(320 / size);
x = random(240 / size);
tft.fillRect(x * size, y*size, size, size, tft.Color565(r, g, b));
}
return micros() - start;
}