};
#pragma pack(pop)
-static uint16_t backlight_8_to_16(unsigned int backlight_8bit)
-{
- return (uint16_t)(backlight_8bit * 0x101);
-}
-
static void fill_backlight_transform_table(struct dmcu_iram_parameters params,
struct iram_table_v_2 *table)
{
unsigned int i;
unsigned int num_entries = NUM_BL_CURVE_SEGS;
- unsigned int query_input_8bit;
- unsigned int query_output_8bit;
unsigned int lut_index;
table->backlight_thresholds[0] = 0;
* format U4.10.
*/
for (i = 1; i+1 < num_entries; i++) {
- query_input_8bit = DIV_ROUNDUP((i * 256), num_entries);
-
lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1);
ASSERT(lut_index < params.backlight_lut_array_size);
- query_output_8bit = params.backlight_lut_array[lut_index] >> 8;
table->backlight_thresholds[i] =
- backlight_8_to_16(query_input_8bit);
+ cpu_to_be16(DIV_ROUNDUP((i * 65536), num_entries));
table->backlight_offsets[i] =
- backlight_8_to_16(query_output_8bit);
+ cpu_to_be16(params.backlight_lut_array[lut_index]);
}
}
{
unsigned int i;
unsigned int num_entries = NUM_BL_CURVE_SEGS;
- unsigned int query_input_8bit;
- unsigned int query_output_8bit;
unsigned int lut_index;
table->backlight_thresholds[0] = 0;
* format U4.10.
*/
for (i = 1; i+1 < num_entries; i++) {
- query_input_8bit = DIV_ROUNDUP((i * 256), num_entries);
-
lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1);
ASSERT(lut_index < params.backlight_lut_array_size);
- query_output_8bit = params.backlight_lut_array[lut_index] >> 8;
table->backlight_thresholds[i] =
- backlight_8_to_16(query_input_8bit);
+ cpu_to_be16(DIV_ROUNDUP((i * 65536), num_entries));
table->backlight_offsets[i] =
- backlight_8_to_16(query_output_8bit);
+ cpu_to_be16(params.backlight_lut_array[lut_index]);
}
}