1 /* $NetBSD: amdgpu_dc_common.c,v 1.2 2021/12/18 23:45:00 riastradh Exp $ */
2
3 /*
4 * Copyright 2012-15 Advanced Micro Devices, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: AMD
25 *
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: amdgpu_dc_common.c,v 1.2 2021/12/18 23:45:00 riastradh Exp $");
30
31 #include "core_types.h"
32 #include "dc_common.h"
33 #include "basics/conversion.h"
34
is_rgb_cspace(enum dc_color_space output_color_space)35 bool is_rgb_cspace(enum dc_color_space output_color_space)
36 {
37 switch (output_color_space) {
38 case COLOR_SPACE_SRGB:
39 case COLOR_SPACE_SRGB_LIMITED:
40 case COLOR_SPACE_2020_RGB_FULLRANGE:
41 case COLOR_SPACE_2020_RGB_LIMITEDRANGE:
42 case COLOR_SPACE_ADOBERGB:
43 return true;
44 case COLOR_SPACE_YCBCR601:
45 case COLOR_SPACE_YCBCR709:
46 case COLOR_SPACE_YCBCR601_LIMITED:
47 case COLOR_SPACE_YCBCR709_LIMITED:
48 case COLOR_SPACE_2020_YCBCR:
49 return false;
50 default:
51 /* Add a case to switch */
52 BREAK_TO_DEBUGGER();
53 return false;
54 }
55 }
56
is_lower_pipe_tree_visible(struct pipe_ctx * pipe_ctx)57 bool is_lower_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
58 {
59 if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
60 return true;
61 if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe))
62 return true;
63 return false;
64 }
65
is_upper_pipe_tree_visible(struct pipe_ctx * pipe_ctx)66 bool is_upper_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
67 {
68 if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
69 return true;
70 if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe))
71 return true;
72 return false;
73 }
74
is_pipe_tree_visible(struct pipe_ctx * pipe_ctx)75 bool is_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
76 {
77 if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
78 return true;
79 if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe))
80 return true;
81 if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe))
82 return true;
83 return false;
84 }
85
build_prescale_params(struct dc_bias_and_scale * bias_and_scale,const struct dc_plane_state * plane_state)86 void build_prescale_params(struct dc_bias_and_scale *bias_and_scale,
87 const struct dc_plane_state *plane_state)
88 {
89 if (plane_state->format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN
90 && plane_state->format != SURFACE_PIXEL_FORMAT_INVALID
91 && plane_state->input_csc_color_matrix.enable_adjustment
92 && plane_state->coeff_reduction_factor.value != 0) {
93 bias_and_scale->scale_blue = fixed_point_to_int_frac(
94 dc_fixpt_mul(plane_state->coeff_reduction_factor,
95 dc_fixpt_from_fraction(256, 255)),
96 2,
97 13);
98 bias_and_scale->scale_red = bias_and_scale->scale_blue;
99 bias_and_scale->scale_green = bias_and_scale->scale_blue;
100 } else {
101 bias_and_scale->scale_blue = 0x2000;
102 bias_and_scale->scale_red = 0x2000;
103 bias_and_scale->scale_green = 0x2000;
104 }
105 }
106
107