diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics/dc_common.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/dc_common.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/basics/dc_common.c b/drivers/gpu/drm/amd/display/dc/basics/dc_common.c new file mode 100644 index 000000000000..b2fc4f8e6482 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/dc_common.c @@ -0,0 +1,101 @@ +/* + * Copyright 2012-15 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#include "core_types.h" +#include "dc_common.h" +#include "basics/conversion.h" + +bool is_rgb_cspace(enum dc_color_space output_color_space) +{ + switch (output_color_space) { + case COLOR_SPACE_SRGB: + case COLOR_SPACE_SRGB_LIMITED: + case COLOR_SPACE_2020_RGB_FULLRANGE: + case COLOR_SPACE_2020_RGB_LIMITEDRANGE: + case COLOR_SPACE_ADOBERGB: + return true; + case COLOR_SPACE_YCBCR601: + case COLOR_SPACE_YCBCR709: + case COLOR_SPACE_YCBCR601_LIMITED: + case COLOR_SPACE_YCBCR709_LIMITED: + case COLOR_SPACE_2020_YCBCR: + return false; + default: + /* Add a case to switch */ + BREAK_TO_DEBUGGER(); + return false; + } +} + +bool is_lower_pipe_tree_visible(struct pipe_ctx *pipe_ctx) +{ + if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible) + return true; + if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe)) + return true; + return false; +} + +bool is_upper_pipe_tree_visible(struct pipe_ctx *pipe_ctx) +{ + if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible) + return true; + if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe)) + return true; + return false; +} + +bool is_pipe_tree_visible(struct pipe_ctx *pipe_ctx) +{ + if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible) + return true; + if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe)) + return true; + if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe)) + return true; + return false; +} + +void build_prescale_params(struct dc_bias_and_scale *bias_and_scale, + const struct dc_plane_state *plane_state) +{ + if (plane_state->format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN + && plane_state->format != SURFACE_PIXEL_FORMAT_INVALID + && plane_state->input_csc_color_matrix.enable_adjustment + && plane_state->coeff_reduction_factor.value != 0) { + bias_and_scale->scale_blue = fixed_point_to_int_frac( + dc_fixpt_mul(plane_state->coeff_reduction_factor, + dc_fixpt_from_fraction(256, 255)), + 2, + 13); + bias_and_scale->scale_red = bias_and_scale->scale_blue; + bias_and_scale->scale_green = bias_and_scale->scale_blue; + } else { + bias_and_scale->scale_blue = 0x2000; + bias_and_scale->scale_red = 0x2000; + bias_and_scale->scale_green = 0x2000; + } +} + |