cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

dc_common.c (3368B)

      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:
     44		return false;
     45	default:
     46		/* Add a case to switch */
     47		BREAK_TO_DEBUGGER();
     48		return false;
     49	}
     50}
     51
     52bool is_lower_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
     53{
     54	if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
     55		return true;
     56	if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe))
     57		return true;
     58	return false;
     59}
     60
     61bool is_upper_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
     62{
     63	if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
     64		return true;
     65	if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe))
     66		return true;
     67	return false;
     68}
     69
     70bool is_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
     71{
     72	if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible)
     73		return true;
     74	if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe))
     75		return true;
     76	if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe))
     77		return true;
     78	return false;
     79}
     80
     81void build_prescale_params(struct  dc_bias_and_scale *bias_and_scale,
     82		const struct dc_plane_state *plane_state)
     83{
     84	if (plane_state->format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN
     85			&& plane_state->format != SURFACE_PIXEL_FORMAT_INVALID
     86			&& plane_state->input_csc_color_matrix.enable_adjustment
     87			&& plane_state->coeff_reduction_factor.value != 0) {
     88		bias_and_scale->scale_blue = fixed_point_to_int_frac(
     89			dc_fixpt_mul(plane_state->coeff_reduction_factor,
     90					dc_fixpt_from_fraction(256, 255)),
     91				2,
     92				13);
     93		bias_and_scale->scale_red = bias_and_scale->scale_blue;
     94		bias_and_scale->scale_green = bias_and_scale->scale_blue;
     95	} else {
     96		bias_and_scale->scale_blue = 0x2000;
     97		bias_and_scale->scale_red = 0x2000;
     98		bias_and_scale->scale_green = 0x2000;
     99	}
    100}
    101