dc_common.c

  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->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->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->top_pipe))
 76		return true;
 77	if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(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			dc_fixpt_mul(plane_state->coeff_reduction_factor,
 91					dc_fixpt_from_fraction(256, 255)),
 92				2,
 93				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