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mpv/video/out/opengl/video_shaders.h

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vo_opengl: move self-contained shader routines to a separate file This is mostly to cut down somewhat on the amount of code bloat in video.c by moving out helper functions (including scaler kernels and color management routines) to a separate file. It would certainly be possible to move out more functions (eg. dithering or CMS code) with some extra effort/refactoring, but this is a start. Signed-off-by: wm4 <wm4@nowhere>
2015-09-05 12:03:00 +00:00
/*
* This file is part of mpv.
*
Change GPL/LGPL dual-licensed files to LGPL Do this to make the license situation less confusing. This change should be of no consequence, since LGPL is compatible with GPL anyway, and making it LGPL-only does not restrict the use with GPL code. Additionally, the wording implies that this is allowed, and that we can just remove the GPL part.
2016-01-19 17:36:34 +00:00
* mpv 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.
vo_opengl: move self-contained shader routines to a separate file This is mostly to cut down somewhat on the amount of code bloat in video.c by moving out helper functions (including scaler kernels and color management routines) to a separate file. It would certainly be possible to move out more functions (eg. dithering or CMS code) with some extra effort/refactoring, but this is a start. Signed-off-by: wm4 <wm4@nowhere>
2015-09-05 12:03:00 +00:00
*
* mpv 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
Change GPL/LGPL dual-licensed files to LGPL Do this to make the license situation less confusing. This change should be of no consequence, since LGPL is compatible with GPL anyway, and making it LGPL-only does not restrict the use with GPL code. Additionally, the wording implies that this is allowed, and that we can just remove the GPL part.
2016-01-19 17:36:34 +00:00
* GNU Lesser General Public License for more details.
vo_opengl: move self-contained shader routines to a separate file This is mostly to cut down somewhat on the amount of code bloat in video.c by moving out helper functions (including scaler kernels and color management routines) to a separate file. It would certainly be possible to move out more functions (eg. dithering or CMS code) with some extra effort/refactoring, but this is a start. Signed-off-by: wm4 <wm4@nowhere>
2015-09-05 12:03:00 +00:00
*
Change GPL/LGPL dual-licensed files to LGPL Do this to make the license situation less confusing. This change should be of no consequence, since LGPL is compatible with GPL anyway, and making it LGPL-only does not restrict the use with GPL code. Additionally, the wording implies that this is allowed, and that we can just remove the GPL part.
2016-01-19 17:36:34 +00:00
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
vo_opengl: move self-contained shader routines to a separate file This is mostly to cut down somewhat on the amount of code bloat in video.c by moving out helper functions (including scaler kernels and color management routines) to a separate file. It would certainly be possible to move out more functions (eg. dithering or CMS code) with some extra effort/refactoring, but this is a start. Signed-off-by: wm4 <wm4@nowhere>
2015-09-05 12:03:00 +00:00
*/
#ifndef MP_GL_VIDEO_SHADERS_H
#define MP_GL_VIDEO_SHADERS_H
vo_opengl: implement debanding (and remove source-shader) The removal of source-shader is a side effect, since this effectively replaces it - and the video-reading code has been significantly restructured to make more sense and be more readable. This means users no longer have to constantly download and maintain a separate deband.glsl installation alongside mpv, which was the only real use case for source-shader that we found either way.
2015-09-05 15:39:27 +00:00
#include <libavutil/lfg.h>
vo_opengl: move self-contained shader routines to a separate file This is mostly to cut down somewhat on the amount of code bloat in video.c by moving out helper functions (including scaler kernels and color management routines) to a separate file. It would certainly be possible to move out more functions (eg. dithering or CMS code) with some extra effort/refactoring, but this is a start. Signed-off-by: wm4 <wm4@nowhere>
2015-09-05 12:03:00 +00:00
#include "common.h"
#include "utils.h"
#include "video.h"
vo_opengl: implement debanding (and remove source-shader) The removal of source-shader is a side effect, since this effectively replaces it - and the video-reading code has been significantly restructured to make more sense and be more readable. This means users no longer have to constantly download and maintain a separate deband.glsl installation alongside mpv, which was the only real use case for source-shader that we found either way.
2015-09-05 15:39:27 +00:00
extern const struct deband_opts deband_opts_def;
extern const struct m_sub_options deband_conf;
vo_opengl: move self-contained shader routines to a separate file This is mostly to cut down somewhat on the amount of code bloat in video.c by moving out helper functions (including scaler kernels and color management routines) to a separate file. It would certainly be possible to move out more functions (eg. dithering or CMS code) with some extra effort/refactoring, but this is a start. Signed-off-by: wm4 <wm4@nowhere>
2015-09-05 12:03:00 +00:00
void sampler_prelude(struct gl_shader_cache *sc, int tex_num);
void pass_sample_separated_gen(struct gl_shader_cache *sc, struct scaler *scaler,
int d_x, int d_y);
void pass_sample_polar(struct gl_shader_cache *sc, struct scaler *scaler);
void pass_sample_bicubic_fast(struct gl_shader_cache *sc);
void pass_sample_oversample(struct gl_shader_cache *sc, struct scaler *scaler,
int w, int h);
void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc);
void pass_delinearize(struct gl_shader_cache *sc, enum mp_csp_trc trc);
vo_opengl: implement debanding (and remove source-shader) The removal of source-shader is a side effect, since this effectively replaces it - and the video-reading code has been significantly restructured to make more sense and be more readable. This means users no longer have to constantly download and maintain a separate deband.glsl installation alongside mpv, which was the only real use case for source-shader that we found either way.
2015-09-05 15:39:27 +00:00
void pass_sample_deband(struct gl_shader_cache *sc, struct deband_opts *opts,
vo_opengl: refactor pass_read_video and texture binding This is a pretty major rewrite of the internal texture binding mechanic, which makes it more flexible. In general, the difference between the old and current approaches is that now, all texture description is held in a struct img_tex and only explicitly bound with pass_bind. (Once bound, a texture unit is assumed to be set in stone and no longer tied to the img_tex) This approach makes the code inside pass_read_video significantly more flexible and cuts down on the number of weird special cases and spaghetti logic. It also has some improvements, e.g. cutting down greatly on the number of unnecessary conversion passes inside pass_read_video (which was previously mostly done to cope with the fact that the alternative would have resulted in a combinatorial explosion of code complexity). Some other notable changes (and potential improvements): - texture expansion is now *always* handled in pass_read_video, and the colormatrix never does this anymore. (Which means the code could probably be removed from the colormatrix generation logic, modulo some other VOs) - struct fbo_tex now stores both its "physical" and "logical" (configured) size, which cuts down on the amount of width/height baggage on some function calls - vo_opengl can now technically support textures with different bit depths (e.g. 10 bit luma, 8 bit chroma) - but the APIs it queries inside img_format.c doesn't export this (nor does ffmpeg support it, really) so the status quo of using the same tex_mul for all planes is kept. - dumb_mode is now only needed because of the indirect_fbo being in the main rendering pipeline. If we reintroduce p->use_indirect and thread a transform through the entire program this could be skipped where unnecessary, allowing for the removal of dumb_mode. But I'm not sure how to do this in a clean way. (Which is part of why it got introduced to begin with) - It would be trivial to resurrect source-shader now (it would just be one extra 'if' inside pass_read_video).
2016-03-05 10:29:19 +00:00
int tex_num, float tex_mul, GLenum tex_target, AVLFG *lfg);
vo_opengl: implement debanding (and remove source-shader) The removal of source-shader is a side effect, since this effectively replaces it - and the video-reading code has been significantly restructured to make more sense and be more readable. This means users no longer have to constantly download and maintain a separate deband.glsl installation alongside mpv, which was the only real use case for source-shader that we found either way.
2015-09-05 15:39:27 +00:00
vo_opengl: add optional hook points These are "sequence points" where the image could be rendered out to an FBO, hooked, and re-loaded if any such hook exists. This is perfect for things like the current user shaders system, as well as optional effects like unsharp masking. Note that since we have to pick *some* FBO to store the optionally hooked texture, we just store it in an array indexed by an increasing counter. Since we only ever store as many as MAX_TEXTURE_HOOKS + all internal hook points entries, this is guaranteed to be enough space. This commit also removes some of the now unused FBOs.
2016-04-19 18:45:40 +00:00
void pass_sample_unsharp(struct gl_shader_cache *sc, float param);
vo_opengl: remove sharpen scalers, add sharpen sub-option 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.
2015-09-23 20:43:27 +00:00
vo_opengl: move self-contained shader routines to a separate file This is mostly to cut down somewhat on the amount of code bloat in video.c by moving out helper functions (including scaler kernels and color management routines) to a separate file. It would certainly be possible to move out more functions (eg. dithering or CMS code) with some extra effort/refactoring, but this is a start. Signed-off-by: wm4 <wm4@nowhere>
2015-09-05 12:03:00 +00:00
#endif