mirror of
https://github.com/mpv-player/mpv
synced 2024-11-14 22:48:35 +01:00
cb1c072534
This turns the old scalers (inherited from MPlayer) into a pre- processing step (after color conversion and before scaling). The code for the "sharpen5" scaler is reused for this. The main reason MPlayer implemented this as scalers was perhaps because FBOs were too expensive, and making it a scaler allowed to implement this in 1 pass. But unsharp masking is not really a scaler, and I would guess the result is more like combining bilinear scaling and unsharp masking.
53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*
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* You can alternatively redistribute this file and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*/
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#ifndef MP_GL_VIDEO_SHADERS_H
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#define MP_GL_VIDEO_SHADERS_H
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#include <libavutil/lfg.h>
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#include "common.h"
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#include "utils.h"
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#include "video.h"
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extern const struct deband_opts deband_opts_def;
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extern const struct m_sub_options deband_conf;
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void sampler_prelude(struct gl_shader_cache *sc, int tex_num);
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void pass_sample_separated_gen(struct gl_shader_cache *sc, struct scaler *scaler,
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int d_x, int d_y);
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void pass_sample_polar(struct gl_shader_cache *sc, struct scaler *scaler);
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void pass_sample_bicubic_fast(struct gl_shader_cache *sc);
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void pass_sample_oversample(struct gl_shader_cache *sc, struct scaler *scaler,
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int w, int h);
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void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc);
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void pass_delinearize(struct gl_shader_cache *sc, enum mp_csp_trc trc);
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void pass_sample_deband(struct gl_shader_cache *sc, struct deband_opts *opts,
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int tex_num, GLenum tex_target, float tex_mul,
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float img_w, float img_h, AVLFG *lfg);
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void pass_sample_unsharp(struct gl_shader_cache *sc, float param);
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#endif
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