From: Vladimir Stempen <[email protected]> [Why] Currently DAL programs negative slope for the last point of output transfer function curve.
[How] Applying a check for the last PWL point for RGB values not to be smaller than previous. If smaller, initialize the last point values to a sum of previous PWL value and previous PWL delta; Signed-off-by: Vladimir Stempen <[email protected]> Reviewed-by: Tony Cheng <[email protected]> Acked-by: Jun Lei <[email protected]> Acked-by: Rodrigo Siqueira <[email protected]> Acked-by: Harry Wentland <[email protected]> --- .../gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c index bbd6e01b3eca..47a39eb9400b 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c @@ -316,6 +316,7 @@ bool cm_helper_translate_curve_to_hw_format( struct pwl_result_data *rgb_resulted; struct pwl_result_data *rgb; struct pwl_result_data *rgb_plus_1; + struct pwl_result_data *rgb_minus_1; int32_t region_start, region_end; int32_t i; @@ -465,9 +466,20 @@ bool cm_helper_translate_curve_to_hw_format( rgb = rgb_resulted; rgb_plus_1 = rgb_resulted + 1; + rgb_minus_1 = rgb; i = 1; while (i != hw_points + 1) { + + if (i >= hw_points - 1) { + if (dc_fixpt_lt(rgb_plus_1->red, rgb->red)) + rgb_plus_1->red = dc_fixpt_add(rgb->red, rgb_minus_1->delta_red); + if (dc_fixpt_lt(rgb_plus_1->green, rgb->green)) + rgb_plus_1->green = dc_fixpt_add(rgb->green, rgb_minus_1->delta_green); + if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue)) + rgb_plus_1->blue = dc_fixpt_add(rgb->blue, rgb_minus_1->delta_blue); + } + rgb->delta_red = dc_fixpt_sub(rgb_plus_1->red, rgb->red); rgb->delta_green = dc_fixpt_sub(rgb_plus_1->green, rgb->green); rgb->delta_blue = dc_fixpt_sub(rgb_plus_1->blue, rgb->blue); @@ -482,6 +494,7 @@ bool cm_helper_translate_curve_to_hw_format( } ++rgb_plus_1; + rgb_minus_1 = rgb; ++rgb; ++i; } -- 2.25.0 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
