static unsigned char hsv_pix[HSV_WHEEL_SIZE * HSV_WHEEL_SIZE * 4];
for (int y = 0; y < HSV_WHEEL_SIZE; ++y) {
for (int x = 0; x < HSV_WHEEL_SIZE; ++x) {
static unsigned char hsv_pix[HSV_WHEEL_SIZE * HSV_WHEEL_SIZE * 4];
for (int y = 0; y < HSV_WHEEL_SIZE; ++y) {
for (int x = 0; x < HSV_WHEEL_SIZE; ++x) {