dc/basics/dc_common.c

0001 /*
0002  * Copyright 2012-15 Advanced Micro Devices, Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: AMD
0023  *
0024  */
0025
0026 #include "core_types.h"
0027 #include "dc_common.h"
0028 #include "basics/conversion.h"
0029
0030 bool is_rgb_cspace(enum dc_color_space output_color_space)
0031 {
0032     switch (output_color_space) {
0033     case COLOR_SPACE_SRGB:
0034     case COLOR_SPACE_SRGB_LIMITED:
0035     case COLOR_SPACE_2020_RGB_FULLRANGE:
0036     case COLOR_SPACE_2020_RGB_LIMITEDRANGE:
0037     case COLOR_SPACE_ADOBERGB:
0038         return true;
0039     case COLOR_SPACE_YCBCR601:
0040     case COLOR_SPACE_YCBCR709:
0041     case COLOR_SPACE_YCBCR601_LIMITED:
0042     case COLOR_SPACE_YCBCR709_LIMITED:
0043     case COLOR_SPACE_2020_YCBCR:
0044         return false;
0045     default:
0046         /* Add a case to switch */
0047         BREAK_TO_DEBUGGER();
0048         return false;
0049     }
0050 }
0051
0052 bool is_lower_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
0053 {
0054     if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
0055         return true;
0056     if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe))
0057         return true;
0058     return false;
0059 }
0060
0061 bool is_upper_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
0062 {
0063     if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
0064         return true;
0065     if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe))
0066         return true;
0067     return false;
0068 }
0069
0070 bool is_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
0071 {
0072     if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
0073         return true;
0074     if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe))
0075         return true;
0076     if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe))
0077         return true;
0078     return false;
0079 }
0080
0081 void build_prescale_params(struct  dc_bias_and_scale *bias_and_scale,
0082         const struct dc_plane_state *plane_state)
0083 {
0084     if (plane_state->format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN
0085             && plane_state->format != SURFACE_PIXEL_FORMAT_INVALID
0086             && plane_state->input_csc_color_matrix.enable_adjustment
0087             && plane_state->coeff_reduction_factor.value != 0) {
0088         bias_and_scale->scale_blue = fixed_point_to_int_frac(
0089             dc_fixpt_mul(plane_state->coeff_reduction_factor,
0090                     dc_fixpt_from_fraction(256, 255)),
0091                 2,
0092                 13);
0093         bias_and_scale->scale_red = bias_and_scale->scale_blue;
0094         bias_and_scale->scale_green = bias_and_scale->scale_blue;
0095     } else {
0096         bias_and_scale->scale_blue = 0x2000;
0097         bias_and_scale->scale_red = 0x2000;
0098         bias_and_scale->scale_green = 0x2000;
0099     }
0100 }
0101