1/*
2 * Copyright 2012-15 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#include "core_types.h"
27#include "dc_common.h"
28#include "basics/conversion.h"
29
30bool is_rgb_cspace(enum dc_color_space output_color_space)
31{
32 switch (output_color_space) {
33 case COLOR_SPACE_SRGB:
34 case COLOR_SPACE_SRGB_LIMITED:
35 case COLOR_SPACE_2020_RGB_FULLRANGE:
36 case COLOR_SPACE_2020_RGB_LIMITEDRANGE:
37 case COLOR_SPACE_ADOBERGB:
38 return true;
39 case COLOR_SPACE_YCBCR601:
40 case COLOR_SPACE_YCBCR709:
41 case COLOR_SPACE_YCBCR601_LIMITED:
42 case COLOR_SPACE_YCBCR709_LIMITED:
43 case COLOR_SPACE_2020_YCBCR_LIMITED:
44 case COLOR_SPACE_2020_YCBCR_FULL:
45 return false;
46 default:
47 /* Add a case to switch */
48 BREAK_TO_DEBUGGER();
49 return false;
50 }
51}
52
53bool is_lower_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
54{
55 if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
56 return true;
57 if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx: pipe_ctx->bottom_pipe))
58 return true;
59 return false;
60}
61
62bool is_upper_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
63{
64 if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
65 return true;
66 if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx: pipe_ctx->top_pipe))
67 return true;
68 return false;
69}
70
71bool is_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
72{
73 if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
74 return true;
75 if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx: pipe_ctx->top_pipe))
76 return true;
77 if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx: pipe_ctx->bottom_pipe))
78 return true;
79 return false;
80}
81
82void build_prescale_params(struct dc_bias_and_scale *bias_and_scale,
83 const struct dc_plane_state *plane_state)
84{
85 if (plane_state->format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN
86 && plane_state->format != SURFACE_PIXEL_FORMAT_INVALID
87 && plane_state->input_csc_color_matrix.enable_adjustment
88 && plane_state->coeff_reduction_factor.value != 0) {
89 bias_and_scale->scale_blue = fixed_point_to_int_frac(
90 arg: dc_fixpt_mul(arg1: plane_state->coeff_reduction_factor,
91 arg2: dc_fixpt_from_fraction(numerator: 256, denominator: 255)),
92 integer_bits: 2,
93 fractional_bits: 13);
94 bias_and_scale->scale_red = bias_and_scale->scale_blue;
95 bias_and_scale->scale_green = bias_and_scale->scale_blue;
96 } else {
97 bias_and_scale->scale_blue = 0x2000;
98 bias_and_scale->scale_red = 0x2000;
99 bias_and_scale->scale_green = 0x2000;
100 }
101}
102
103

source code of linux/drivers/gpu/drm/amd/display/dc/basics/dc_common.c