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mpv/video/out/gl_video.h

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vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MP_GL_VIDEO_H
#define MP_GL_VIDEO_H
#include <stdbool.h>
#include "sub/sub.h"
#include "gl_common.h"
struct lut3d {
uint16_t *data;
int size[3];
};
struct gl_video_opts {
char *scalers[2];
float scaler_params[2];
int indirect;
int gamma;
int srgb;
int scale_sep;
int fancy_downscaling;
gl_video: add scaler-resizes-only sub-option This option disables the scaler set with lscale if the video image is not resized.
2013-05-25 21:47:55 +00:00
int scaler_resizes_only;
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
int npot;
int pbo;
int dither_depth;
gl_video: improve dithering Use a different algorithm to generate the dithering matrix. This looks much better than the previous ordered dither matrix with its cross-hatch artifacts. The matrix generation algorithm as well as its implementation was contributed by Wessel Dankers aka Fruit. The code in dither.c is his implementation, reformatted and with static global variables removed by me. The new matrix is uploaded as float texture - before this commit, it was a normal integer fixed point matrix. This means dithering will be disabled on systems without float textures. The size of the dithering matrix can be configured, as the matrix is generated at runtime. The generation of the matrix can take rather long, and is already unacceptable with size 8. The default is at 6, which takes about 100 ms on a Core2 Duo system with dither.c compiled at -O2, which I consider just about acceptable. The old ordered dithering is still available and can be selected by putting the dither=ordered sub-option. The ordered dither matrix generation code was moved to dither.c. This function was originally written by Uoti Urpala.
2013-05-25 23:48:39 +00:00
int dither_algo;
int dither_size;
int temporal_dither;
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
int fbo_format;
int stereo_mode;
vo_opengl: add alpha output Allows playing video with alpha information on X11, as long as the video contains alpha and the window manager does compositing. See vo.rst. Whether a window can be transparent is decided by the choice of the X Visual used for window creation. Unfortunately, there's no direct way to request such a Visual through the GLX or the X API, and use of the XRender extension is required to find out whether a Visual implies a framebuffer with alpha used by XRender (see for example [1]). Instead of depending on the XRender wrapper library (which would require annoying configure checks, even though XRender is virtually always supported), use a simple heuristics to find out whether a Visual has alpha. Since getting it wrong just means an optional feature will not work as expected, we consider this ok. [1] http://stackoverflow.com/questions/4052940/how-to-make-an-opengl- rendering-context-with-transparent-background/9215724#9215724
2013-03-28 20:44:27 +00:00
int enable_alpha;
vo_opengl: handle chroma location Use the video decoder chroma location flags and render chroma locations other than centered. Until now, we've always used the intuitive and obvious centered chroma location, but H.264 uses something else. FFmpeg provides a small overview in libavcodec/avcodec.h: ----------- /** * X X 3 4 X X are luma samples, * 1 2 1-6 are possible chroma positions * X X 5 6 X 0 is undefined/unknown position */ enum AVChromaLocation{ AVCHROMA_LOC_UNSPECIFIED = 0, AVCHROMA_LOC_LEFT = 1, ///< mpeg2/4, h264 default AVCHROMA_LOC_CENTER = 2, ///< mpeg1, jpeg, h263 AVCHROMA_LOC_TOPLEFT = 3, ///< DV AVCHROMA_LOC_TOP = 4, AVCHROMA_LOC_BOTTOMLEFT = 5, AVCHROMA_LOC_BOTTOM = 6, AVCHROMA_LOC_NB , ///< Not part of ABI }; ----------- The visual difference is literally minimal, but since videophiles apparently consider this detail as quality mark of a video renderer, support it anyway. We don't bother with chroma locations other than centered and left, though. Not sure about correctness, but it's probably ok.
2013-06-08 00:15:24 +00:00
int chroma_location;
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
};
extern const struct m_sub_options gl_video_conf;
struct gl_video;
struct gl_video *gl_video_init(GL *gl);
void gl_video_uninit(struct gl_video *p);
void gl_video_set_options(struct gl_video *p, struct gl_video_opts *opts);
video: add a new method to configure filters and VOs The filter chain and the video ouputs have config() functions. They are strictly limited to transfering the video size and format. Other parameters (like color levels) have to be transferred separately. Improve upon this by introducing a separate set of reconfig() functions, which use mp_image_params to carry format parameters. This struct contains all image format related parameters from config(), plus additional parameters such as colorspace. Change vf_rotate to use it, as well as vo_opengl. vf_rotate is just an example/test case, but vo_opengl will need it later. The intention is also to get rid of VOCTRL_SET_YUV_COLORSPACE. This information is now handed to the VOs via reconfig(). The getter, VOCTRL_GET_YUV_COLORSPACE, will still be needed though.
2013-06-07 23:35:44 +00:00
void gl_video_config(struct gl_video *p, struct mp_image_params *params);
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
void gl_video_set_output_depth(struct gl_video *p, int r, int g, int b);
void gl_video_set_lut3d(struct gl_video *p, struct lut3d *lut3d);
void gl_video_draw_osd(struct gl_video *p, struct osd_state *osd);
void gl_video_upload_image(struct gl_video *p, struct mp_image *img);
void gl_video_render_frame(struct gl_video *p);
struct mp_image *gl_video_download_image(struct gl_video *p);
void gl_video_resize(struct gl_video *p, struct mp_rect *window,
struct mp_rect *src, struct mp_rect *dst,
struct mp_osd_res *osd);
bool gl_video_get_csp_override(struct gl_video *p, struct mp_csp_details *csp);
bool gl_video_set_csp_override(struct gl_video *p, struct mp_csp_details *csp);
bool gl_video_set_equalizer(struct gl_video *p, const char *name, int val);
bool gl_video_get_equalizer(struct gl_video *p, const char *name, int *val);
void gl_video_set_debug(struct gl_video *p, bool enable);
add a way to resize window contents without VO resize gl_video_resize_redraw() simply resizes and redraws (but without invoking swapGlBuffers()). The VO is not involved in any way, so this can simply be called from inside the mpgl lock from any thread. Requires a minor refactor of the GL OSD code in order to redraw without an OSD object.
2013-03-15 19:17:33 +00:00
void gl_video_resize_redraw(struct gl_video *p, int w, int h);
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
bool gl_video_check_format(int mp_format);
#endif