diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/color/color_gamma.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/color/color_gamma.c | 692 |
1 files changed, 490 insertions, 202 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c index b3747a019deb..0cd111d59018 100644 --- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c +++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c @@ -43,7 +43,7 @@ static bool de_pq_initialized; /* = false; */ /* one-time setup of X points */ void setup_x_points_distribution(void) { - struct fixed31_32 region_size = dal_fixed31_32_from_int(128); + struct fixed31_32 region_size = dc_fixpt_from_int(128); int32_t segment; uint32_t seg_offset; uint32_t index; @@ -53,8 +53,8 @@ void setup_x_points_distribution(void) coordinates_x[MAX_HW_POINTS + 1].x = region_size; for (segment = 6; segment > (6 - NUM_REGIONS); segment--) { - region_size = dal_fixed31_32_div_int(region_size, 2); - increment = dal_fixed31_32_div_int(region_size, + region_size = dc_fixpt_div_int(region_size, 2); + increment = dc_fixpt_div_int(region_size, NUM_PTS_IN_REGION); seg_offset = (segment + (NUM_REGIONS - 7)) * NUM_PTS_IN_REGION; coordinates_x[seg_offset].x = region_size; @@ -62,7 +62,7 @@ void setup_x_points_distribution(void) for (index = seg_offset + 1; index < seg_offset + NUM_PTS_IN_REGION; index++) { - coordinates_x[index].x = dal_fixed31_32_add + coordinates_x[index].x = dc_fixpt_add (coordinates_x[index-1].x, increment); } } @@ -72,63 +72,63 @@ static void compute_pq(struct fixed31_32 in_x, struct fixed31_32 *out_y) { /* consts for PQ gamma formula. */ const struct fixed31_32 m1 = - dal_fixed31_32_from_fraction(159301758, 1000000000); + dc_fixpt_from_fraction(159301758, 1000000000); const struct fixed31_32 m2 = - dal_fixed31_32_from_fraction(7884375, 100000); + dc_fixpt_from_fraction(7884375, 100000); const struct fixed31_32 c1 = - dal_fixed31_32_from_fraction(8359375, 10000000); + dc_fixpt_from_fraction(8359375, 10000000); const struct fixed31_32 c2 = - dal_fixed31_32_from_fraction(188515625, 10000000); + dc_fixpt_from_fraction(188515625, 10000000); const struct fixed31_32 c3 = - dal_fixed31_32_from_fraction(186875, 10000); + dc_fixpt_from_fraction(186875, 10000); struct fixed31_32 l_pow_m1; struct fixed31_32 base; - if (dal_fixed31_32_lt(in_x, dal_fixed31_32_zero)) - in_x = dal_fixed31_32_zero; + if (dc_fixpt_lt(in_x, dc_fixpt_zero)) + in_x = dc_fixpt_zero; - l_pow_m1 = dal_fixed31_32_pow(in_x, m1); - base = dal_fixed31_32_div( - dal_fixed31_32_add(c1, - (dal_fixed31_32_mul(c2, l_pow_m1))), - dal_fixed31_32_add(dal_fixed31_32_one, - (dal_fixed31_32_mul(c3, l_pow_m1)))); - *out_y = dal_fixed31_32_pow(base, m2); + l_pow_m1 = dc_fixpt_pow(in_x, m1); + base = dc_fixpt_div( + dc_fixpt_add(c1, + (dc_fixpt_mul(c2, l_pow_m1))), + dc_fixpt_add(dc_fixpt_one, + (dc_fixpt_mul(c3, l_pow_m1)))); + *out_y = dc_fixpt_pow(base, m2); } static void compute_de_pq(struct fixed31_32 in_x, struct fixed31_32 *out_y) { /* consts for dePQ gamma formula. */ const struct fixed31_32 m1 = - dal_fixed31_32_from_fraction(159301758, 1000000000); + dc_fixpt_from_fraction(159301758, 1000000000); const struct fixed31_32 m2 = - dal_fixed31_32_from_fraction(7884375, 100000); + dc_fixpt_from_fraction(7884375, 100000); const struct fixed31_32 c1 = - dal_fixed31_32_from_fraction(8359375, 10000000); + dc_fixpt_from_fraction(8359375, 10000000); const struct fixed31_32 c2 = - dal_fixed31_32_from_fraction(188515625, 10000000); + dc_fixpt_from_fraction(188515625, 10000000); const struct fixed31_32 c3 = - dal_fixed31_32_from_fraction(186875, 10000); + dc_fixpt_from_fraction(186875, 10000); struct fixed31_32 l_pow_m1; struct fixed31_32 base, div; - if (dal_fixed31_32_lt(in_x, dal_fixed31_32_zero)) - in_x = dal_fixed31_32_zero; + if (dc_fixpt_lt(in_x, dc_fixpt_zero)) + in_x = dc_fixpt_zero; - l_pow_m1 = dal_fixed31_32_pow(in_x, - dal_fixed31_32_div(dal_fixed31_32_one, m2)); - base = dal_fixed31_32_sub(l_pow_m1, c1); + l_pow_m1 = dc_fixpt_pow(in_x, + dc_fixpt_div(dc_fixpt_one, m2)); + base = dc_fixpt_sub(l_pow_m1, c1); - if (dal_fixed31_32_lt(base, dal_fixed31_32_zero)) - base = dal_fixed31_32_zero; + if (dc_fixpt_lt(base, dc_fixpt_zero)) + base = dc_fixpt_zero; - div = dal_fixed31_32_sub(c2, dal_fixed31_32_mul(c3, l_pow_m1)); + div = dc_fixpt_sub(c2, dc_fixpt_mul(c3, l_pow_m1)); - *out_y = dal_fixed31_32_pow(dal_fixed31_32_div(base, div), - dal_fixed31_32_div(dal_fixed31_32_one, m1)); + *out_y = dc_fixpt_pow(dc_fixpt_div(base, div), + dc_fixpt_div(dc_fixpt_one, m1)); } /* one-time pre-compute PQ values - only for sdr_white_level 80 */ @@ -138,14 +138,14 @@ void precompute_pq(void) struct fixed31_32 x; const struct hw_x_point *coord_x = coordinates_x + 32; struct fixed31_32 scaling_factor = - dal_fixed31_32_from_fraction(80, 10000); + dc_fixpt_from_fraction(80, 10000); /* pow function has problems with arguments too small */ for (i = 0; i < 32; i++) - pq_table[i] = dal_fixed31_32_zero; + pq_table[i] = dc_fixpt_zero; for (i = 32; i <= MAX_HW_POINTS; i++) { - x = dal_fixed31_32_mul(coord_x->x, scaling_factor); + x = dc_fixpt_mul(coord_x->x, scaling_factor); compute_pq(x, &pq_table[i]); ++coord_x; } @@ -158,7 +158,7 @@ void precompute_de_pq(void) struct fixed31_32 y; uint32_t begin_index, end_index; - struct fixed31_32 scaling_factor = dal_fixed31_32_from_int(125); + struct fixed31_32 scaling_factor = dc_fixpt_from_int(125); /* X points is 2^-25 to 2^7 * De-gamma X is 2^-12 to 2^0 – we are skipping first -12-(-25) = 13 regions @@ -167,11 +167,11 @@ void precompute_de_pq(void) end_index = begin_index + 12 * NUM_PTS_IN_REGION; for (i = 0; i <= begin_index; i++) - de_pq_table[i] = dal_fixed31_32_zero; + de_pq_table[i] = dc_fixpt_zero; for (; i <= end_index; i++) { compute_de_pq(coordinates_x[i].x, &y); - de_pq_table[i] = dal_fixed31_32_mul(y, scaling_factor); + de_pq_table[i] = dc_fixpt_mul(y, scaling_factor); } for (; i <= MAX_HW_POINTS; i++) @@ -185,25 +185,25 @@ struct dividers { static void build_coefficients(struct gamma_coefficients *coefficients, bool is_2_4) { - static const int32_t numerator01[] = { 31308, 180000}; - static const int32_t numerator02[] = { 12920, 4500}; - static const int32_t numerator03[] = { 55, 99}; - static const int32_t numerator04[] = { 55, 99}; - static const int32_t numerator05[] = { 2400, 2200}; + static const int32_t numerator01[] = { 31308, 180000}; + static const int32_t numerator02[] = { 12920, 4500}; + static const int32_t numerator03[] = { 55, 99}; + static const int32_t numerator04[] = { 55, 99}; + static const int32_t numerator05[] = { 2400, 2200}; - uint32_t i = 0; - uint32_t index = is_2_4 == true ? 0:1; + uint32_t i = 0; + uint32_t index = is_2_4 == true ? 0:1; do { - coefficients->a0[i] = dal_fixed31_32_from_fraction( + coefficients->a0[i] = dc_fixpt_from_fraction( numerator01[index], 10000000); - coefficients->a1[i] = dal_fixed31_32_from_fraction( + coefficients->a1[i] = dc_fixpt_from_fraction( numerator02[index], 1000); - coefficients->a2[i] = dal_fixed31_32_from_fraction( + coefficients->a2[i] = dc_fixpt_from_fraction( numerator03[index], 1000); - coefficients->a3[i] = dal_fixed31_32_from_fraction( + coefficients->a3[i] = dc_fixpt_from_fraction( numerator04[index], 1000); - coefficients->user_gamma[i] = dal_fixed31_32_from_fraction( + coefficients->user_gamma[i] = dc_fixpt_from_fraction( numerator05[index], 1000); ++i; @@ -218,33 +218,33 @@ static struct fixed31_32 translate_from_linear_space( struct fixed31_32 a3, struct fixed31_32 gamma) { - const struct fixed31_32 one = dal_fixed31_32_from_int(1); + const struct fixed31_32 one = dc_fixpt_from_int(1); - if (dal_fixed31_32_lt(one, arg)) + if (dc_fixpt_lt(one, arg)) return one; - if (dal_fixed31_32_le(arg, dal_fixed31_32_neg(a0))) - return dal_fixed31_32_sub( + if (dc_fixpt_le(arg, dc_fixpt_neg(a0))) + return dc_fixpt_sub( a2, - dal_fixed31_32_mul( - dal_fixed31_32_add( + dc_fixpt_mul( + dc_fixpt_add( one, a3), - dal_fixed31_32_pow( - dal_fixed31_32_neg(arg), - dal_fixed31_32_recip(gamma)))); - else if (dal_fixed31_32_le(a0, arg)) - return dal_fixed31_32_sub( - dal_fixed31_32_mul( - dal_fixed31_32_add( + dc_fixpt_pow( + dc_fixpt_neg(arg), + dc_fixpt_recip(gamma)))); + else if (dc_fixpt_le(a0, arg)) + return dc_fixpt_sub( + dc_fixpt_mul( + dc_fixpt_add( one, a3), - dal_fixed31_32_pow( + dc_fixpt_pow( arg, - dal_fixed31_32_recip(gamma))), + dc_fixpt_recip(gamma))), a2); else - return dal_fixed31_32_mul( + return dc_fixpt_mul( arg, a1); } @@ -259,25 +259,25 @@ static struct fixed31_32 translate_to_linear_space( { struct fixed31_32 linear; - a0 = dal_fixed31_32_mul(a0, a1); - if (dal_fixed31_32_le(arg, dal_fixed31_32_neg(a0))) + a0 = dc_fixpt_mul(a0, a1); + if (dc_fixpt_le(arg, dc_fixpt_neg(a0))) - linear = dal_fixed31_32_neg( - dal_fixed31_32_pow( - dal_fixed31_32_div( - dal_fixed31_32_sub(a2, arg), - dal_fixed31_32_add( - dal_fixed31_32_one, a3)), gamma)); + linear = dc_fixpt_neg( + dc_fixpt_pow( + dc_fixpt_div( + dc_fixpt_sub(a2, arg), + dc_fixpt_add( + dc_fixpt_one, a3)), gamma)); - else if (dal_fixed31_32_le(dal_fixed31_32_neg(a0), arg) && - dal_fixed31_32_le(arg, a0)) - linear = dal_fixed31_32_div(arg, a1); + else if (dc_fixpt_le(dc_fixpt_neg(a0), arg) && + dc_fixpt_le(arg, a0)) + linear = dc_fixpt_div(arg, a1); else - linear = dal_fixed31_32_pow( - dal_fixed31_32_div( - dal_fixed31_32_add(a2, arg), - dal_fixed31_32_add( - dal_fixed31_32_one, a3)), gamma); + linear = dc_fixpt_pow( + dc_fixpt_div( + dc_fixpt_add(a2, arg), + dc_fixpt_add( + dc_fixpt_one, a3)), gamma); return linear; } @@ -352,8 +352,8 @@ static bool find_software_points( right = axis_x[max_number - 1].b; } - if (dal_fixed31_32_le(left, hw_point) && - dal_fixed31_32_le(hw_point, right)) { + if (dc_fixpt_le(left, hw_point) && + dc_fixpt_le(hw_point, right)) { *index_to_start = i; *index_left = i; @@ -366,7 +366,7 @@ static bool find_software_points( return true; } else if ((i == *index_to_start) && - dal_fixed31_32_le(hw_point, left)) { + dc_fixpt_le(hw_point, left)) { *index_to_start = i; *index_left = i; *index_right = i; @@ -375,7 +375,7 @@ static bool find_software_points( return true; } else if ((i == max_number - 1) && - dal_fixed31_32_le(right, hw_point)) { + dc_fixpt_le(right, hw_point)) { *index_to_start = i; *index_left = i; *index_right = i; @@ -457,17 +457,17 @@ static bool build_custom_gamma_mapping_coefficients_worker( } if (hw_pos == HW_POINT_POSITION_MIDDLE) - point->coeff = dal_fixed31_32_div( - dal_fixed31_32_sub( + point->coeff = dc_fixpt_div( + dc_fixpt_sub( coord_x, left_pos), - dal_fixed31_32_sub( + dc_fixpt_sub( right_pos, left_pos)); else if (hw_pos == HW_POINT_POSITION_LEFT) - point->coeff = dal_fixed31_32_zero; + point->coeff = dc_fixpt_zero; else if (hw_pos == HW_POINT_POSITION_RIGHT) - point->coeff = dal_fixed31_32_from_int(2); + point->coeff = dc_fixpt_from_int(2); else { BREAK_TO_DEBUGGER(); return false; @@ -502,45 +502,45 @@ static struct fixed31_32 calculate_mapped_value( if ((point->left_index < 0) || (point->left_index > max_index)) { BREAK_TO_DEBUGGER(); - return dal_fixed31_32_zero; + return dc_fixpt_zero; } if ((point->right_index < 0) || (point->right_index > max_index)) { BREAK_TO_DEBUGGER(); - return dal_fixed31_32_zero; + return dc_fixpt_zero; } if (point->pos == HW_POINT_POSITION_MIDDLE) if (channel == CHANNEL_NAME_RED) - result = dal_fixed31_32_add( - dal_fixed31_32_mul( + result = dc_fixpt_add( + dc_fixpt_mul( point->coeff, - dal_fixed31_32_sub( + dc_fixpt_sub( rgb[point->right_index].r, rgb[point->left_index].r)), rgb[point->left_index].r); else if (channel == CHANNEL_NAME_GREEN) - result = dal_fixed31_32_add( - dal_fixed31_32_mul( + result = dc_fixpt_add( + dc_fixpt_mul( point->coeff, - dal_fixed31_32_sub( + dc_fixpt_sub( rgb[point->right_index].g, rgb[point->left_index].g)), rgb[point->left_index].g); else - result = dal_fixed31_32_add( - dal_fixed31_32_mul( + result = dc_fixpt_add( + dc_fixpt_mul( point->coeff, - dal_fixed31_32_sub( + dc_fixpt_sub( rgb[point->right_index].b, rgb[point->left_index].b)), rgb[point->left_index].b); else if (point->pos == HW_POINT_POSITION_LEFT) { BREAK_TO_DEBUGGER(); - result = dal_fixed31_32_zero; + result = dc_fixpt_zero; } else { BREAK_TO_DEBUGGER(); - result = dal_fixed31_32_one; + result = dc_fixpt_one; } return result; @@ -558,7 +558,7 @@ static void build_pq(struct pwl_float_data_ex *rgb_regamma, struct fixed31_32 x; struct fixed31_32 output; struct fixed31_32 scaling_factor = - dal_fixed31_32_from_fraction(sdr_white_level, 10000); + dc_fixpt_from_fraction(sdr_white_level, 10000); if (!pq_initialized && sdr_white_level == 80) { precompute_pq(); @@ -579,15 +579,15 @@ static void build_pq(struct pwl_float_data_ex *rgb_regamma, if (sdr_white_level == 80) { output = pq_table[i]; } else { - x = dal_fixed31_32_mul(coord_x->x, scaling_factor); + x = dc_fixpt_mul(coord_x->x, scaling_factor); compute_pq(x, &output); } /* should really not happen? */ - if (dal_fixed31_32_lt(output, dal_fixed31_32_zero)) - output = dal_fixed31_32_zero; - else if (dal_fixed31_32_lt(dal_fixed31_32_one, output)) - output = dal_fixed31_32_one; + if (dc_fixpt_lt(output, dc_fixpt_zero)) + output = dc_fixpt_zero; + else if (dc_fixpt_lt(dc_fixpt_one, output)) + output = dc_fixpt_one; rgb->r = output; rgb->g = output; @@ -605,7 +605,7 @@ static void build_de_pq(struct pwl_float_data_ex *de_pq, uint32_t i; struct fixed31_32 output; - struct fixed31_32 scaling_factor = dal_fixed31_32_from_int(125); + struct fixed31_32 scaling_factor = dc_fixpt_from_int(125); if (!de_pq_initialized) { precompute_de_pq(); @@ -616,9 +616,9 @@ static void build_de_pq(struct pwl_float_data_ex *de_pq, for (i = 0; i <= hw_points_num; i++) { output = de_pq_table[i]; /* should really not happen? */ - if (dal_fixed31_32_lt(output, dal_fixed31_32_zero)) - output = dal_fixed31_32_zero; - else if (dal_fixed31_32_lt(scaling_factor, output)) + if (dc_fixpt_lt(output, dc_fixpt_zero)) + output = dc_fixpt_zero; + else if (dc_fixpt_lt(scaling_factor, output)) output = scaling_factor; de_pq[i].r = output; de_pq[i].g = output; @@ -670,9 +670,9 @@ static void build_degamma(struct pwl_float_data_ex *curve, end_index = begin_index + 12 * NUM_PTS_IN_REGION; while (i != begin_index) { - curve[i].r = dal_fixed31_32_zero; - curve[i].g = dal_fixed31_32_zero; - curve[i].b = dal_fixed31_32_zero; + curve[i].r = dc_fixpt_zero; + curve[i].g = dc_fixpt_zero; + curve[i].b = dc_fixpt_zero; i++; } @@ -684,19 +684,19 @@ static void build_degamma(struct pwl_float_data_ex *curve, i++; } while (i != hw_points_num + 1) { - curve[i].r = dal_fixed31_32_one; - curve[i].g = dal_fixed31_32_one; - curve[i].b = dal_fixed31_32_one; + curve[i].r = dc_fixpt_one; + curve[i].g = dc_fixpt_one; + curve[i].b = dc_fixpt_one; i++; } } -static bool scale_gamma(struct pwl_float_data *pwl_rgb, +static void scale_gamma(struct pwl_float_data *pwl_rgb, const struct dc_gamma *ramp, struct dividers dividers) { - const struct fixed31_32 max_driver = dal_fixed31_32_from_int(0xFFFF); - const struct fixed31_32 max_os = dal_fixed31_32_from_int(0xFF00); + const struct fixed31_32 max_driver = dc_fixpt_from_int(0xFFFF); + const struct fixed31_32 max_os = dc_fixpt_from_int(0xFF00); struct fixed31_32 scaler = max_os; uint32_t i; struct pwl_float_data *rgb = pwl_rgb; @@ -705,9 +705,9 @@ static bool scale_gamma(struct pwl_float_data *pwl_rgb, i = 0; do { - if (dal_fixed31_32_lt(max_os, ramp->entries.red[i]) || - dal_fixed31_32_lt(max_os, ramp->entries.green[i]) || - dal_fixed31_32_lt(max_os, ramp->entries.blue[i])) { + if (dc_fixpt_lt(max_os, ramp->entries.red[i]) || + dc_fixpt_lt(max_os, ramp->entries.green[i]) || + dc_fixpt_lt(max_os, ramp->entries.blue[i])) { scaler = max_driver; break; } @@ -717,109 +717,170 @@ static bool scale_gamma(struct pwl_float_data *pwl_rgb, i = 0; do { - rgb->r = dal_fixed31_32_div( + rgb->r = dc_fixpt_div( ramp->entries.red[i], scaler); - rgb->g = dal_fixed31_32_div( + rgb->g = dc_fixpt_div( ramp->entries.green[i], scaler); - rgb->b = dal_fixed31_32_div( + rgb->b = dc_fixpt_div( ramp->entries.blue[i], scaler); ++rgb; ++i; } while (i != ramp->num_entries); - rgb->r = dal_fixed31_32_mul(rgb_last->r, + rgb->r = dc_fixpt_mul(rgb_last->r, dividers.divider1); - rgb->g = dal_fixed31_32_mul(rgb_last->g, + rgb->g = dc_fixpt_mul(rgb_last->g, dividers.divider1); - rgb->b = dal_fixed31_32_mul(rgb_last->b, + rgb->b = dc_fixpt_mul(rgb_last->b, dividers.divider1); ++rgb; - rgb->r = dal_fixed31_32_mul(rgb_last->r, + rgb->r = dc_fixpt_mul(rgb_last->r, dividers.divider2); - rgb->g = dal_fixed31_32_mul(rgb_last->g, + rgb->g = dc_fixpt_mul(rgb_last->g, dividers.divider2); - rgb->b = dal_fixed31_32_mul(rgb_last->b, + rgb->b = dc_fixpt_mul(rgb_last->b, dividers.divider2); ++rgb; - rgb->r = dal_fixed31_32_mul(rgb_last->r, + rgb->r = dc_fixpt_mul(rgb_last->r, dividers.divider3); - rgb->g = dal_fixed31_32_mul(rgb_last->g, + rgb->g = dc_fixpt_mul(rgb_last->g, dividers.divider3); - rgb->b = dal_fixed31_32_mul(rgb_last->b, + rgb->b = dc_fixpt_mul(rgb_last->b, dividers.divider3); - - return true; } -static bool scale_gamma_dx(struct pwl_float_data *pwl_rgb, +static void scale_gamma_dx(struct pwl_float_data *pwl_rgb, const struct dc_gamma *ramp, struct dividers dividers) { uint32_t i; - struct fixed31_32 min = dal_fixed31_32_zero; - struct fixed31_32 max = dal_fixed31_32_one; + struct fixed31_32 min = dc_fixpt_zero; + struct fixed31_32 max = dc_fixpt_one; - struct fixed31_32 delta = dal_fixed31_32_zero; - struct fixed31_32 offset = dal_fixed31_32_zero; + struct fixed31_32 delta = dc_fixpt_zero; + struct fixed31_32 offset = dc_fixpt_zero; for (i = 0 ; i < ramp->num_entries; i++) { - if (dal_fixed31_32_lt(ramp->entries.red[i], min)) + if (dc_fixpt_lt(ramp->entries.red[i], min)) min = ramp->entries.red[i]; - if (dal_fixed31_32_lt(ramp->entries.green[i], min)) + if (dc_fixpt_lt(ramp->entries.green[i], min)) min = ramp->entries.green[i]; - if (dal_fixed31_32_lt(ramp->entries.blue[i], min)) + if (dc_fixpt_lt(ramp->entries.blue[i], min)) min = ramp->entries.blue[i]; - if (dal_fixed31_32_lt(max, ramp->entries.red[i])) + if (dc_fixpt_lt(max, ramp->entries.red[i])) max = ramp->entries.red[i]; - if (dal_fixed31_32_lt(max, ramp->entries.green[i])) + if (dc_fixpt_lt(max, ramp->entries.green[i])) max = ramp->entries.green[i]; - if (dal_fixed31_32_lt(max, ramp->entries.blue[i])) + if (dc_fixpt_lt(max, ramp->entries.blue[i])) max = ramp->entries.blue[i]; } - if (dal_fixed31_32_lt(min, dal_fixed31_32_zero)) - delta = dal_fixed31_32_neg(min); + if (dc_fixpt_lt(min, dc_fixpt_zero)) + delta = dc_fixpt_neg(min); - offset = dal_fixed31_32_add(min, max); + offset = dc_fixpt_add(min, max); for (i = 0 ; i < ramp->num_entries; i++) { - pwl_rgb[i].r = dal_fixed31_32_div( - dal_fixed31_32_add( + pwl_rgb[i].r = dc_fixpt_div( + dc_fixpt_add( ramp->entries.red[i], delta), offset); - pwl_rgb[i].g = dal_fixed31_32_div( - dal_fixed31_32_add( + pwl_rgb[i].g = dc_fixpt_div( + dc_fixpt_add( ramp->entries.green[i], delta), offset); - pwl_rgb[i].b = dal_fixed31_32_div( - dal_fixed31_32_add( + pwl_rgb[i].b = dc_fixpt_div( + dc_fixpt_add( ramp->entries.blue[i], delta), offset); } - pwl_rgb[i].r = dal_fixed31_32_sub(dal_fixed31_32_mul_int( + pwl_rgb[i].r = dc_fixpt_sub(dc_fixpt_mul_int( pwl_rgb[i-1].r, 2), pwl_rgb[i-2].r); - pwl_rgb[i].g = dal_fixed31_32_sub(dal_fixed31_32_mul_int( + pwl_rgb[i].g = dc_fixpt_sub(dc_fixpt_mul_int( pwl_rgb[i-1].g, 2), pwl_rgb[i-2].g); - pwl_rgb[i].b = dal_fixed31_32_sub(dal_fixed31_32_mul_int( + pwl_rgb[i].b = dc_fixpt_sub(dc_fixpt_mul_int( pwl_rgb[i-1].b, 2), pwl_rgb[i-2].b); ++i; - pwl_rgb[i].r = dal_fixed31_32_sub(dal_fixed31_32_mul_int( + pwl_rgb[i].r = dc_fixpt_sub(dc_fixpt_mul_int( pwl_rgb[i-1].r, 2), pwl_rgb[i-2].r); - pwl_rgb[i].g = dal_fixed31_32_sub(dal_fixed31_32_mul_int( + pwl_rgb[i].g = dc_fixpt_sub(dc_fixpt_mul_int( pwl_rgb[i-1].g, 2), pwl_rgb[i-2].g); - pwl_rgb[i].b = dal_fixed31_32_sub(dal_fixed31_32_mul_int( + pwl_rgb[i].b = dc_fixpt_sub(dc_fixpt_mul_int( pwl_rgb[i-1].b, 2), pwl_rgb[i-2].b); +} - return true; +/* todo: all these scale_gamma functions are inherently the same but + * take different structures as params or different format for ramp + * values. We could probably implement it in a more generic fashion + */ +static void scale_user_regamma_ramp(struct pwl_float_data *pwl_rgb, + const struct regamma_ramp *ramp, + struct dividers dividers) +{ + unsigned short max_driver = 0xFFFF; + unsigned short max_os = 0xFF00; + unsigned short scaler = max_os; + uint32_t i; + struct pwl_float_data *rgb = pwl_rgb; + struct pwl_float_data *rgb_last = rgb + GAMMA_RGB_256_ENTRIES - 1; + + i = 0; + do { + if (ramp->gamma[i] > max_os || + ramp->gamma[i + 256] > max_os || + ramp->gamma[i + 512] > max_os) { + scaler = max_driver; + break; + } + i++; + } while (i != GAMMA_RGB_256_ENTRIES); + + i = 0; + do { + rgb->r = dc_fixpt_from_fraction( + ramp->gamma[i], scaler); + rgb->g = dc_fixpt_from_fraction( + ramp->gamma[i + 256], scaler); + rgb->b = dc_fixpt_from_fraction( + ramp->gamma[i + 512], scaler); + + ++rgb; + ++i; + } while (i != GAMMA_RGB_256_ENTRIES); + + rgb->r = dc_fixpt_mul(rgb_last->r, + dividers.divider1); + rgb->g = dc_fixpt_mul(rgb_last->g, + dividers.divider1); + rgb->b = dc_fixpt_mul(rgb_last->b, + dividers.divider1); + + ++rgb; + + rgb->r = dc_fixpt_mul(rgb_last->r, + dividers.divider2); + rgb->g = dc_fixpt_mul(rgb_last->g, + dividers.divider2); + rgb->b = dc_fixpt_mul(rgb_last->b, + dividers.divider2); + + ++rgb; + + rgb->r = dc_fixpt_mul(rgb_last->r, + dividers.divider3); + rgb->g = dc_fixpt_mul(rgb_last->g, + dividers.divider3); + rgb->b = dc_fixpt_mul(rgb_last->b, + dividers.divider3); } /* @@ -852,7 +913,7 @@ static void apply_lut_1d( struct fixed31_32 lut2; const int max_lut_index = 4095; const struct fixed31_32 max_lut_index_f = - dal_fixed31_32_from_int_nonconst(max_lut_index); + dc_fixpt_from_int(max_lut_index); int32_t index = 0, index_next = 0; struct fixed31_32 index_f; struct fixed31_32 delta_lut; @@ -870,10 +931,10 @@ static void apply_lut_1d( else regamma_y = &tf_pts->blue[i]; - norm_y = dal_fixed31_32_mul(max_lut_index_f, + norm_y = dc_fixpt_mul(max_lut_index_f, *regamma_y); - index = dal_fixed31_32_floor(norm_y); - index_f = dal_fixed31_32_from_int_nonconst(index); + index = dc_fixpt_floor(norm_y); + index_f = dc_fixpt_from_int(index); if (index < 0 || index > max_lut_index) continue; @@ -892,11 +953,11 @@ static void apply_lut_1d( } // we have everything now, so interpolate - delta_lut = dal_fixed31_32_sub(lut2, lut1); - delta_index = dal_fixed31_32_sub(norm_y, index_f); + delta_lut = dc_fixpt_sub(lut2, lut1); + delta_index = dc_fixpt_sub(norm_y, index_f); - *regamma_y = dal_fixed31_32_add(lut1, - dal_fixed31_32_mul(delta_index, delta_lut)); + *regamma_y = dc_fixpt_add(lut1, + dc_fixpt_mul(delta_index, delta_lut)); } } } @@ -912,7 +973,7 @@ static void build_evenly_distributed_points( uint32_t i = 0; do { - struct fixed31_32 value = dal_fixed31_32_from_fraction(i, + struct fixed31_32 value = dc_fixpt_from_fraction(i, numberof_points - 1); p->r = value; @@ -923,21 +984,21 @@ static void build_evenly_distributed_points( ++i; } while (i != numberof_points); - p->r = dal_fixed31_32_div(p_last->r, dividers.divider1); - p->g = dal_fixed31_32_div(p_last->g, dividers.divider1); - p->b = dal_fixed31_32_div(p_last->b, dividers.divider1); + p->r = dc_fixpt_div(p_last->r, dividers.divider1); + p->g = dc_fixpt_div(p_last->g, dividers.divider1); + p->b = dc_fixpt_div(p_last->b, dividers.divider1); ++p; - p->r = dal_fixed31_32_div(p_last->r, dividers.divider2); - p->g = dal_fixed31_32_div(p_last->g, dividers.divider2); - p->b = dal_fixed31_32_div(p_last->b, dividers.divider2); + p->r = dc_fixpt_div(p_last->r, dividers.divider2); + p->g = dc_fixpt_div(p_last->g, dividers.divider2); + p->b = dc_fixpt_div(p_last->b, dividers.divider2); ++p; - p->r = dal_fixed31_32_div(p_last->r, dividers.divider3); - p->g = dal_fixed31_32_div(p_last->g, dividers.divider3); - p->b = dal_fixed31_32_div(p_last->b, dividers.divider3); + p->r = dc_fixpt_div(p_last->r, dividers.divider3); + p->g = dc_fixpt_div(p_last->g, dividers.divider3); + p->b = dc_fixpt_div(p_last->b, dividers.divider3); } static inline void copy_rgb_regamma_to_coordinates_x( @@ -949,7 +1010,7 @@ static inline void copy_rgb_regamma_to_coordinates_x( uint32_t i = 0; const struct pwl_float_data_ex *rgb_regamma = rgb_ex; - while (i <= hw_points_num) { + while (i <= hw_points_num + 1) { coords->regamma_y_red = rgb_regamma->r; coords->regamma_y_green = rgb_regamma->g; coords->regamma_y_blue = rgb_regamma->b; @@ -1002,6 +1063,102 @@ static bool calculate_interpolated_hardware_curve( return true; } +/* The "old" interpolation uses a complicated scheme to build an array of + * coefficients while also using an array of 0-255 normalized to 0-1 + * Then there's another loop using both of the above + new scaled user ramp + * and we concatenate them. It also searches for points of interpolation and + * uses enums for positions. + * + * This function uses a different approach: + * user ramp is always applied on X with 0/255, 1/255, 2/255, ..., 255/255 + * To find index for hwX , we notice the following: + * i/255 <= hwX < (i+1)/255 <=> i <= 255*hwX < i+1 + * See apply_lut_1d which is the same principle, but on 4K entry 1D LUT + * + * Once the index is known, combined Y is simply: + * user_ramp(index) + (hwX-index/255)*(user_ramp(index+1) - user_ramp(index) + * + * We should switch to this method in all cases, it's simpler and faster + * ToDo one day - for now this only applies to ADL regamma to avoid regression + * for regular use cases (sRGB and PQ) + */ +static void interpolate_user_regamma(uint32_t hw_points_num, + struct pwl_float_data *rgb_user, + bool apply_degamma, + struct dc_transfer_func_distributed_points *tf_pts) +{ + uint32_t i; + uint32_t color = 0; + int32_t index; + int32_t index_next; + struct fixed31_32 *tf_point; + struct fixed31_32 hw_x; + struct fixed31_32 norm_factor = + dc_fixpt_from_int(255); + struct fixed31_32 norm_x; + struct fixed31_32 index_f; + struct fixed31_32 lut1; + struct fixed31_32 lut2; + struct fixed31_32 delta_lut; + struct fixed31_32 delta_index; + + i = 0; + /* fixed_pt library has problems handling too small values */ + while (i != 32) { + tf_pts->red[i] = dc_fixpt_zero; + tf_pts->green[i] = dc_fixpt_zero; + tf_pts->blue[i] = dc_fixpt_zero; + ++i; + } + while (i <= hw_points_num + 1) { + for (color = 0; color < 3; color++) { + if (color == 0) + tf_point = &tf_pts->red[i]; + else if (color == 1) + tf_point = &tf_pts->green[i]; + else + tf_point = &tf_pts->blue[i]; + + if (apply_degamma) { + if (color == 0) + hw_x = coordinates_x[i].regamma_y_red; + else if (color == 1) + hw_x = coordinates_x[i].regamma_y_green; + else + hw_x = coordinates_x[i].regamma_y_blue; + } else + hw_x = coordinates_x[i].x; + + norm_x = dc_fixpt_mul(norm_factor, hw_x); + index = dc_fixpt_floor(norm_x); + if (index < 0 || index > 255) + continue; + + index_f = dc_fixpt_from_int(index); + index_next = (index == 255) ? index : index + 1; + + if (color == 0) { + lut1 = rgb_user[index].r; + lut2 = rgb_user[index_next].r; + } else if (color == 1) { + lut1 = rgb_user[index].g; + lut2 = rgb_user[index_next].g; + } else { + lut1 = rgb_user[index].b; + lut2 = rgb_user[index_next].b; + } + + // we have everything now, so interpolate + delta_lut = dc_fixpt_sub(lut2, lut1); + delta_index = dc_fixpt_sub(norm_x, index_f); + + *tf_point = dc_fixpt_add(lut1, + dc_fixpt_mul(delta_index, delta_lut)); + } + ++i; + } +} + static void build_new_custom_resulted_curve( uint32_t hw_points_num, struct dc_transfer_func_distributed_points *tf_pts) @@ -1011,16 +1168,39 @@ static void build_new_custom_resulted_curve( i = 0; while (i != hw_points_num + 1) { - tf_pts->red[i] = dal_fixed31_32_clamp( - tf_pts->red[i], dal_fixed31_32_zero, - dal_fixed31_32_one); - tf_pts->green[i] = dal_fixed31_32_clamp( - tf_pts->green[i], dal_fixed31_32_zero, - dal_fixed31_32_one); - tf_pts->blue[i] = dal_fixed31_32_clamp( - tf_pts->blue[i], dal_fixed31_32_zero, - dal_fixed31_32_one); + tf_pts->red[i] = dc_fixpt_clamp( + tf_pts->red[i], dc_fixpt_zero, + dc_fixpt_one); + tf_pts->green[i] = dc_fixpt_clamp( + tf_pts->green[i], dc_fixpt_zero, + dc_fixpt_one); + tf_pts->blue[i] = dc_fixpt_clamp( + tf_pts->blue[i], dc_fixpt_zero, + dc_fixpt_one); + + ++i; + } +} + +static void apply_degamma_for_user_regamma(struct pwl_float_data_ex *rgb_regamma, + uint32_t hw_points_num) +{ + uint32_t i; + + struct gamma_coefficients coeff; + struct pwl_float_data_ex *rgb = rgb_regamma; + const struct hw_x_point *coord_x = coordinates_x; + + build_coefficients(&coeff, true); + i = 0; + while (i != hw_points_num + 1) { + rgb->r = translate_from_linear_space_ex( + coord_x->x, &coeff, 0); + rgb->g = rgb->r; + rgb->b = rgb->r; + ++coord_x; + ++rgb; ++i; } } @@ -1062,6 +1242,7 @@ static bool map_regamma_hw_to_x_user( } } + /* this should be named differently, all it does is clamp to 0-1 */ build_new_custom_resulted_curve(hw_points_num, tf_pts); return true; @@ -1109,9 +1290,9 @@ bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf, if (!coeff) goto coeff_alloc_fail; - dividers.divider1 = dal_fixed31_32_from_fraction(3, 2); - dividers.divider2 = dal_fixed31_32_from_int(2); - dividers.divider3 = dal_fixed31_32_from_fraction(5, 2); + dividers.divider1 = dc_fixpt_from_fraction(3, 2); + dividers.divider2 = dc_fixpt_from_int(2); + dividers.divider3 = dc_fixpt_from_fraction(5, 2); tf = output_tf->tf; @@ -1168,6 +1349,113 @@ rgb_user_alloc_fail: return ret; } +bool calculate_user_regamma_coeff(struct dc_transfer_func *output_tf, + const struct regamma_lut *regamma) +{ + struct gamma_coefficients coeff; + const struct hw_x_point *coord_x = coordinates_x; + uint32_t i = 0; + + do { + coeff.a0[i] = dc_fixpt_from_fraction( + regamma->coeff.A0[i], 10000000); + coeff.a1[i] = dc_fixpt_from_fraction( + regamma->coeff.A1[i], 1000); + coeff.a2[i] = dc_fixpt_from_fraction( + regamma->coeff.A2[i], 1000); + coeff.a3[i] = dc_fixpt_from_fraction( + regamma->coeff.A3[i], 1000); + coeff.user_gamma[i] = dc_fixpt_from_fraction( + regamma->coeff.gamma[i], 1000); + + ++i; + } while (i != 3); + + i = 0; + /* fixed_pt library has problems handling too small values */ + while (i != 32) { + output_tf->tf_pts.red[i] = dc_fixpt_zero; + output_tf->tf_pts.green[i] = dc_fixpt_zero; + output_tf->tf_pts.blue[i] = dc_fixpt_zero; + ++coord_x; + ++i; + } + while (i != MAX_HW_POINTS + 1) { + output_tf->tf_pts.red[i] = translate_from_linear_space_ex( + coord_x->x, &coeff, 0); + output_tf->tf_pts.green[i] = translate_from_linear_space_ex( + coord_x->x, &coeff, 1); + output_tf->tf_pts.blue[i] = translate_from_linear_space_ex( + coord_x->x, &coeff, 2); + ++coord_x; + ++i; + } + + // this function just clamps output to 0-1 + build_new_custom_resulted_curve(MAX_HW_POINTS, &output_tf->tf_pts); + output_tf->type = TF_TYPE_DISTRIBUTED_POINTS; + + return true; +} + +bool calculate_user_regamma_ramp(struct dc_transfer_func *output_tf, + const struct regamma_lut *regamma) +{ + struct dc_transfer_func_distributed_points *tf_pts = &output_tf->tf_pts; + struct dividers dividers; + + struct pwl_float_data *rgb_user = NULL; + struct pwl_float_data_ex *rgb_regamma = NULL; + bool ret = false; + + if (regamma == NULL) + return false; + + output_tf->type = TF_TYPE_DISTRIBUTED_POINTS; + + rgb_user = kzalloc(sizeof(*rgb_user) * (GAMMA_RGB_256_ENTRIES + _EXTRA_POINTS), + GFP_KERNEL); + if (!rgb_user) + goto rgb_user_alloc_fail; + + rgb_regamma = kzalloc(sizeof(*rgb_regamma) * (MAX_HW_POINTS + _EXTRA_POINTS), + GFP_KERNEL); + if (!rgb_regamma) + goto rgb_regamma_alloc_fail; + + dividers.divider1 = dc_fixpt_from_fraction(3, 2); + dividers.divider2 = dc_fixpt_from_int(2); + dividers.divider3 = dc_fixpt_from_fraction(5, 2); + + scale_user_regamma_ramp(rgb_user, ®amma->ramp, dividers); + + if (regamma->flags.bits.applyDegamma == 1) { + apply_degamma_for_user_regamma(rgb_regamma, MAX_HW_POINTS); + copy_rgb_regamma_to_coordinates_x(coordinates_x, + MAX_HW_POINTS, rgb_regamma); + } + + interpolate_user_regamma(MAX_HW_POINTS, rgb_user, + regamma->flags.bits.applyDegamma, tf_pts); + + // no custom HDR curves! + tf_pts->end_exponent = 0; + tf_pts->x_point_at_y1_red = 1; + tf_pts->x_point_at_y1_green = 1; + tf_pts->x_point_at_y1_blue = 1; + + // this function just clamps output to 0-1 + build_new_custom_resulted_curve(MAX_HW_POINTS, tf_pts); + + ret = true; + + kfree(rgb_regamma); +rgb_regamma_alloc_fail: + kvfree(rgb_user); +rgb_user_alloc_fail: + return ret; +} + bool mod_color_calculate_degamma_params(struct dc_transfer_func *input_tf, const struct dc_gamma *ramp, bool mapUserRamp) { @@ -1208,9 +1496,9 @@ bool mod_color_calculate_degamma_params(struct dc_transfer_func *input_tf, if (!coeff) goto coeff_alloc_fail; - dividers.divider1 = dal_fixed31_32_from_fraction(3, 2); - dividers.divider2 = dal_fixed31_32_from_int(2); - dividers.divider3 = dal_fixed31_32_from_fraction(5, 2); + dividers.divider1 = dc_fixpt_from_fraction(3, 2); + dividers.divider2 = dc_fixpt_from_int(2); + dividers.divider3 = dc_fixpt_from_fraction(5, 2); tf = input_tf->tf; |