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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 20:38:23 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 20:38:23 +0000 |
commit | ff6e3c025658a5fa1affd094f220b623e7e1b24b (patch) | |
tree | 9faab72d69c92d24e349d184f5869b9796f17e0c /src/shaders/film_grain.h | |
parent | Initial commit. (diff) | |
download | libplacebo-ff6e3c025658a5fa1affd094f220b623e7e1b24b.tar.xz libplacebo-ff6e3c025658a5fa1affd094f220b623e7e1b24b.zip |
Adding upstream version 6.338.2.upstream/6.338.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/shaders/film_grain.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/shaders/film_grain.h b/src/shaders/film_grain.h new file mode 100644 index 0000000..f6498c1 --- /dev/null +++ b/src/shaders/film_grain.h @@ -0,0 +1,75 @@ +/* + * This file is part of libplacebo. + * + * libplacebo is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * libplacebo is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with libplacebo. If not, see <http://www.gnu.org/licenses/>. + */ + +#pragma once + +#include "common.h" + +#include <libplacebo/shaders/film_grain.h> + +bool pl_needs_fg_av1(const struct pl_film_grain_params *); +bool pl_needs_fg_h274(const struct pl_film_grain_params *); + +bool pl_shader_fg_av1(pl_shader, pl_shader_obj *, const struct pl_film_grain_params *); +bool pl_shader_fg_h274(pl_shader, pl_shader_obj *, const struct pl_film_grain_params *); + +// Common helper function +static inline enum pl_channel channel_map(int i, const struct pl_film_grain_params *params) +{ + static const enum pl_channel map_rgb[3] = { + [PL_CHANNEL_G] = PL_CHANNEL_Y, + [PL_CHANNEL_B] = PL_CHANNEL_CB, + [PL_CHANNEL_R] = PL_CHANNEL_CR, + }; + + static const enum pl_channel map_xyz[3] = { + [1] = PL_CHANNEL_Y, // Y + [2] = PL_CHANNEL_CB, // Z + [0] = PL_CHANNEL_CR, // X + }; + + if (i >= params->components) + return PL_CHANNEL_NONE; + + int comp = params->component_mapping[i]; + if (comp < 0 || comp > 2) + return PL_CHANNEL_NONE; + + switch (params->repr->sys) { + case PL_COLOR_SYSTEM_UNKNOWN: + case PL_COLOR_SYSTEM_RGB: + return map_rgb[comp]; + case PL_COLOR_SYSTEM_XYZ: + return map_xyz[comp]; + + case PL_COLOR_SYSTEM_BT_601: + case PL_COLOR_SYSTEM_BT_709: + case PL_COLOR_SYSTEM_SMPTE_240M: + case PL_COLOR_SYSTEM_BT_2020_NC: + case PL_COLOR_SYSTEM_BT_2020_C: + case PL_COLOR_SYSTEM_BT_2100_PQ: + case PL_COLOR_SYSTEM_BT_2100_HLG: + case PL_COLOR_SYSTEM_DOLBYVISION: + case PL_COLOR_SYSTEM_YCGCO: + return comp; + + case PL_COLOR_SYSTEM_COUNT: + break; + } + + pl_unreachable(); +} |