static int
ambitv_lpd8806_set_output_to_rgb(
struct ambitv_sink_component* component,
int idx,
int r,
int g,
int b)
{
int ret = -1, *outp = NULL, i, *rgb[] = {&r, &g, &b};
uint16_t rt, gt, bt, d;
struct ambitv_lpd8806_priv* lpd8806 =
(struct ambitv_lpd8806_priv*)component->priv;
outp = ambitv_lpd8806_ptr_for_output(lpd8806, idx, NULL, NULL);
if (NULL != outp) {
int ii = *outp;
if (lpd8806->num_bbuf) {
unsigned char* acc = lpd8806->bbuf[lpd8806->bbuf_idx];
acc[3 * ii] = g;
acc[3 * ii + 1] = r;
acc[3 * ii + 2] = b;
r = g = b = 0;
for (i=0; i<lpd8806->num_bbuf; i++) {
g += lpd8806->bbuf[i][3 * ii];
r += lpd8806->bbuf[i][3 * ii + 1];
b += lpd8806->bbuf[i][3 * ii + 2];
}
g /= lpd8806->num_bbuf;
r /= lpd8806->num_bbuf;
b /= lpd8806->num_bbuf;
}
for (i=0; i<3; i++) {
if (lpd8806->gamma_lut[i])
*rgb[i] = ambitv_color_map_with_lut(lpd8806->gamma_lut[i], *rgb[i]);
}
rt = r >> 3;
gt = g >> 3;
bt = b >> 3;
d = (rt*1024) + (gt*32) + bt + 32768;
lpd8806->grb[2 * ii + 4] = d >> 8;
lpd8806->grb[2 * ii + 5] = d & 0x00FF;
ret = 0;
}
static int
ambitv_lpd8806_map_output_to_point(
struct ambitv_sink_component* component,
int output,
int width,
int height,
int* x,
int* y)
{
int ret = -1, *outp = NULL, str_idx = 0, led_idx = 0;
struct ambitv_lpd8806_priv* lpd8806 =
(struct ambitv_lpd8806_priv*)component->priv;
outp = ambitv_lpd8806_ptr_for_output(lpd8806, output, &str_idx, &led_idx);
if (NULL != outp) {
ret = 0;
float llen = lpd8806->led_len[str_idx] - 1;
float dim = (str_idx < 2) ? width : height;
float inset = lpd8806->led_inset[str_idx] * dim;
dim -= 2*inset;
switch (str_idx) {
case 0: // top
*x = (int)CONSTRAIN(inset + (dim / llen) * led_idx, 0, width);
*y = 0;
break;
case 1: // bottom
*x = (int)CONSTRAIN(inset + (dim / llen) * led_idx, 0, width);
*y = height;
break;
case 2: // left
*x = 0;
*y = (int)CONSTRAIN(inset + (dim / llen) * led_idx, 0, height);
break;
case 3: // right
*x = width;
*y = (int)CONSTRAIN(inset + (dim / llen) * led_idx, 0, height);
break;
default:
ret = -1;
break;
}
} else {
*x = *y = -1;
}
return ret;
}
void test_lpd8806_ptr_for_output_top_left(void)
{
set_up();
int output = 0;
int str_idx = -1;
int led_idx = -1;
int *ptr = ambitv_lpd8806_ptr_for_output(SINK->priv, output, &str_idx, &led_idx);
CU_ASSERT_EQUAL(str_idx, 0);
CU_ASSERT_EQUAL(led_idx, 0);
CU_ASSERT_PTR_NOT_NULL_FATAL(ptr);
CU_ASSERT_EQUAL(ptr, get_led_str(SINK, 0, 0));
tear_down();
}
void test_lpd8806_ptr_for_output_bottom_left(void)
{
set_up();
// LEDs are indexed continuously through the side arrays top-bottom-left-right
// not according to the stripe layout or clockwise sequence so ten means it is on
// the second side which is the bottom one
int output = 10;
int str_idx = -1;
int led_idx = -1;
int *ptr = ambitv_lpd8806_ptr_for_output(SINK->priv, output, &str_idx, &led_idx);
CU_ASSERT_EQUAL(str_idx, 1);
CU_ASSERT_EQUAL(led_idx, 0);
CU_ASSERT_PTR_NOT_NULL_FATAL(ptr);
CU_ASSERT_EQUAL(ptr, get_led_str(SINK, 1, 0));
tear_down();
}
void test_lpd8806_ptr_for_output_left_top(void)
{
set_up();
// LEDs are indexed continuously through the side arrays top-bottom-left-right
// not according to the stripe layout or clockwise sequence
// The first LED on the left side comes after ten LEDs from the top, then ten LEDs
// from the bottom; therefore it is number 20.
int output = 20;
int str_idx = -1;
int led_idx = -1;
int *ptr = ambitv_lpd8806_ptr_for_output(SINK->priv, output, &str_idx, &led_idx);
CU_ASSERT_EQUAL(str_idx, 2);
CU_ASSERT_EQUAL(led_idx, 0);
CU_ASSERT_PTR_NOT_NULL_FATAL(ptr);
CU_ASSERT_EQUAL(ptr, get_led_str(SINK, 2, 0));
tear_down();
}
