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/*
* Based on vo_gl.c by Reimar Doeffinger.
*
* This file is part of mpv.
*
* 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.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stdbool.h>
#include <assert.h>
#include <libavutil/common.h>
#include "config.h"
#include "mpv_talloc.h"
#include "common/common.h"
#include "misc/bstr.h"
#include "common/msg.h"
#include "common/global.h"
#include "options/m_config.h"
#include "vo.h"
#include "video/mp_image.h"
#include "sub/osd.h"
#include "opengl/context.h"
#include "opengl/utils.h"
#include "opengl/hwdec.h"
#include "opengl/osd.h"
#include "filter_kernels.h"
#include "video/hwdec.h"
#include "opengl/video.h"
#include "opengl/lcms.h"
#define NUM_VSYNC_FENCES 10
struct gl_priv {
struct vo *vo;
struct mp_log *log;
MPGLContext *glctx;
GL *gl;
struct gl_video *renderer;
struct gl_lcms *cms;
struct gl_hwdec *hwdec;
// Options
struct gl_video_opts *renderer_opts;
struct mp_icc_opts *icc_opts;
int use_glFinish;
int waitvsync;
int use_gl_debug;
int allow_sw;
int swap_interval;
int dwm_flush;
int opt_vsync_fences;
char *backend;
int es;
int frames_rendered;
unsigned int prev_sgi_sync_count;
// check-pattern sub-option; for testing/debugging
int opt_pattern[2];
int last_pattern;
int matches, mismatches;
GLsync vsync_fences[NUM_VSYNC_FENCES];
int num_vsync_fences;
};
static void resize(struct gl_priv *p)
{
struct vo *vo = p->vo;
MP_VERBOSE(vo, "Resize: %dx%d\n", vo->dwidth, vo->dheight);
struct mp_rect src, dst;
struct mp_osd_res osd;
vo_get_src_dst_rects(vo, &src, &dst, &osd);
int height = p->glctx->flip_v ? vo->dheight : -vo->dheight;
gl_video_resize(p->renderer, vo->dwidth, height, &src, &dst, &osd);
vo->want_redraw = true;
}
static void check_pattern(struct vo *vo, int item)
{
struct gl_priv *p = vo->priv;
int expected = p->opt_pattern[p->last_pattern];
if (item == expected) {
p->last_pattern++;
if (p->last_pattern >= 2)
p->last_pattern = 0;
p->matches++;
} else {
p->mismatches++;
MP_WARN(vo, "wrong pattern, expected %d got %d (hit: %d, mis: %d)\n",
expected, item, p->matches, p->mismatches);
}
}
static void draw_frame(struct vo *vo, struct vo_frame *frame)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
if (gl->FenceSync && p->num_vsync_fences < p->opt_vsync_fences) {
GLsync fence = gl->FenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);;
if (fence)
p->vsync_fences[p->num_vsync_fences++] = fence;
}
gl_video_render_frame(p->renderer, frame, 0);
if (p->use_glFinish)
gl->Finish();
}
static void flip_page(struct vo *vo)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
mpgl_swap_buffers(p->glctx);
p->frames_rendered++;
if (p->frames_rendered > 5 && !p->use_gl_debug)
gl_video_set_debug(p->renderer, false);
if (p->use_glFinish)
gl->Finish();
if (p->waitvsync || p->opt_pattern[0]) {
if (gl->GetVideoSync) {
unsigned int n1 = 0, n2 = 0;
gl->GetVideoSync(&n1);
if (p->waitvsync)
gl->WaitVideoSync(2, (n1 + 1) % 2, &n2);
int step = n1 - p->prev_sgi_sync_count;
p->prev_sgi_sync_count = n1;
MP_DBG(vo, "Flip counts: %u->%u, step=%d\n", n1, n2, step);
if (p->opt_pattern[0])
check_pattern(vo, step);
} else {
MP_WARN(vo, "GLX_SGI_video_sync not available, disabling.\n");
p->waitvsync = 0;
p->opt_pattern[0] = 0;
}
}
while (p->opt_vsync_fences > 0 && p->num_vsync_fences >= p->opt_vsync_fences) {
gl->ClientWaitSync(p->vsync_fences[0], GL_SYNC_FLUSH_COMMANDS_BIT, 1e9);
gl->DeleteSync(p->vsync_fences[0]);
MP_TARRAY_REMOVE_AT(p->vsync_fences, p->num_vsync_fences, 0);
}
}
static int query_format(struct vo *vo, int format)
{
struct gl_priv *p = vo->priv;
if (!gl_video_check_format(p->renderer, format))
return 0;
return 1;
}
static int reconfig(struct vo *vo, struct mp_image_params *params)
{
struct gl_priv *p = vo->priv;
if (mpgl_reconfig_window(p->glctx) < 0)
return -1;
resize(p);
gl_video_config(p->renderer, params);
return 0;
}
static void request_hwdec_api(struct vo *vo, void *api)
{
struct gl_priv *p = vo->priv;
if (p->hwdec)
return;
p->hwdec = gl_hwdec_load_api(p->vo->log, p->gl, p->vo->global,
vo->hwdec_devs, (intptr_t)api);
gl_video_set_hwdec(p->renderer, p->hwdec);
}
static void call_request_hwdec_api(void *ctx, enum hwdec_type type)
{
// Roundabout way to run hwdec loading on the VO thread.
// Redirects to request_hwdec_api().
vo_control(ctx, VOCTRL_LOAD_HWDEC_API, (void *)(intptr_t)type);
}
static void get_and_update_icc_profile(struct gl_priv *p, int *events)
{
bool has_profile = p->icc_opts->profile && p->icc_opts->profile[0];
if (p->icc_opts->profile_auto && !has_profile) {
MP_VERBOSE(p, "Querying ICC profile...\n");
bstr icc = bstr0(NULL);
int r = mpgl_control(p->glctx, events, VOCTRL_GET_ICC_PROFILE, &icc);
if (r != VO_NOTAVAIL) {
if (r == VO_FALSE) {
MP_WARN(p, "Could not retrieve an ICC profile.\n");
} else if (r == VO_NOTIMPL) {
MP_ERR(p, "icc-profile-auto not implemented on this platform.\n");
}
gl_lcms_set_memory_profile(p->cms, &icc);
has_profile = true;
}
}
if (has_profile)
gl_video_update_profile(p->renderer);
}
static void get_and_update_ambient_lighting(struct gl_priv *p, int *events)
{
int lux;
int r = mpgl_control(p->glctx, events, VOCTRL_GET_AMBIENT_LUX, &lux);
if (r == VO_TRUE) {
gl_video_set_ambient_lux(p->renderer, lux);
}
if (r != VO_TRUE && p->renderer_opts->gamma_auto) {
MP_ERR(p, "gamma_auto option provided, but querying for ambient"
" lighting is not supported on this platform\n");
}
}
static bool reparse_cmdline(struct gl_priv *p, char *args)
{
struct m_config *cfg = NULL;
struct gl_priv *opts = NULL;
int r = 0;
// list of options which can be changed at runtime
#define OPT_BASE_STRUCT struct gl_priv
static const struct m_option change_otps[] = {
OPT_SUBSTRUCT("", renderer_opts, gl_video_conf, 0),
{0}
};
#undef OPT_BASE_STRUCT
if (strcmp(args, "-") == 0) {
opts = p;
} else {
const struct gl_priv *vodef = p->vo->driver->priv_defaults;
cfg = m_config_new(NULL, p->vo->log, sizeof(*opts), vodef, change_otps);
opts = cfg->optstruct;
r = m_config_parse_suboptions(cfg, "opengl", args);
}
if (r >= 0) {
gl_video_set_options(p->renderer, opts->renderer_opts);
gl_video_configure_queue(p->renderer, p->vo);
p->vo->want_redraw = true;
}
talloc_free(cfg);
return r >= 0;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
struct gl_priv *p = vo->priv;
switch (request) {
case VOCTRL_GET_PANSCAN:
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
resize(p);
return VO_TRUE;
case VOCTRL_GET_EQUALIZER: {
struct voctrl_get_equalizer_args *args = data;
struct mp_csp_equalizer *eq = gl_video_eq_ptr(p->renderer);
bool r = mp_csp_equalizer_get(eq, args->name, args->valueptr) >= 0;
return r ? VO_TRUE : VO_NOTIMPL;
}
case VOCTRL_SET_EQUALIZER: {
struct voctrl_set_equalizer_args *args = data;
struct mp_csp_equalizer *eq = gl_video_eq_ptr(p->renderer);
if (mp_csp_equalizer_set(eq, args->name, args->value) >= 0) {
gl_video_eq_update(p->renderer);
vo->want_redraw = true;
return VO_TRUE;
}
return VO_NOTIMPL;
}
case VOCTRL_SCREENSHOT_WIN: {
struct mp_image *screen = glGetWindowScreenshot(p->gl);
// set image parameters according to the display, if possible
if (screen) {
screen->params.primaries = p->renderer_opts->target_prim;
screen->params.gamma = p->renderer_opts->target_trc;
if (p->glctx->flip_v)
mp_image_vflip(screen);
}
*(struct mp_image **)data = screen;
return true;
}
case VOCTRL_LOAD_HWDEC_API:
request_hwdec_api(vo, data);
return true;
case VOCTRL_SET_COMMAND_LINE: {
char *arg = data;
return reparse_cmdline(p, arg);
}
case VOCTRL_RESET:
gl_video_reset(p->renderer);
return true;
case VOCTRL_PAUSE:
if (gl_video_showing_interpolated_frame(p->renderer)) {
vo->want_redraw = true;
vo_wakeup(vo);
}
return true;
}
int events = 0;
int r = mpgl_control(p->glctx, &events, request, data);
if (events & VO_EVENT_ICC_PROFILE_CHANGED) {
get_and_update_icc_profile(p, &events);
vo->want_redraw = true;
}
if (events & VO_EVENT_AMBIENT_LIGHTING_CHANGED) {
get_and_update_ambient_lighting(p, &events);
vo->want_redraw = true;
}
if (events & VO_EVENT_RESIZE)
resize(p);
if (events & VO_EVENT_EXPOSE)
vo->want_redraw = true;
vo_event(vo, events);
return r;
}
static void uninit(struct vo *vo)
{
struct gl_priv *p = vo->priv;
gl_video_uninit(p->renderer);
gl_hwdec_uninit(p->hwdec);
if (vo->hwdec_devs) {
hwdec_devices_set_loader(vo->hwdec_devs, NULL, NULL);
hwdec_devices_destroy(vo->hwdec_devs);
}
mpgl_uninit(p->glctx);
}
static int preinit(struct vo *vo)
{
struct gl_priv *p = vo->priv;
p->vo = vo;
p->log = vo->log;
int vo_flags = 0;
if (p->renderer_opts->alpha_mode == 1)
vo_flags |= VOFLAG_ALPHA;
if (p->use_gl_debug)
vo_flags |= VOFLAG_GL_DEBUG;
if (p->es == 1)
vo_flags |= VOFLAG_GLES;
if (p->es == -1)
vo_flags |= VOFLAG_NO_GLES;
if (p->allow_sw)
vo_flags |= VOFLAG_SW;
p->glctx = mpgl_init(vo, p->backend, vo_flags);
if (!p->glctx)
goto err_out;
p->gl = p->glctx->gl;
p->glctx->dwm_flush_opt = p->dwm_flush;
if (p->gl->SwapInterval) {
p->gl->SwapInterval(p->swap_interval);
} else {
MP_VERBOSE(vo, "swap_control extension missing.\n");
}
p->cms = gl_lcms_init(p, vo->log, vo->global);
if (!p->cms)
goto err_out;
p->renderer = gl_video_init(p->gl, vo->log, vo->global, p->cms);
if (!p->renderer)
goto err_out;
gl_video_set_osd_source(p->renderer, vo->osd);
gl_video_set_options(p->renderer, p->renderer_opts);
gl_video_configure_queue(p->renderer, vo);
gl_lcms_set_options(p->cms, p->icc_opts);
get_and_update_icc_profile(p, &(int){0});
vo->hwdec_devs = hwdec_devices_create();
hwdec_devices_set_loader(vo->hwdec_devs, call_request_hwdec_api, vo);
int hwdec = vo->opts->hwdec_preload_api;
if (hwdec == HWDEC_NONE)
hwdec = vo->global->opts->hwdec_api;
if (hwdec != HWDEC_NONE) {
p->hwdec = gl_hwdec_load_api(p->vo->log, p->gl, vo->global,
vo->hwdec_devs, hwdec);
gl_video_set_hwdec(p->renderer, p->hwdec);
}
return 0;
err_out:
uninit(vo);
return -1;
}
#define OPT_BASE_STRUCT struct gl_priv
static const struct m_option options[] = {
OPT_FLAG("glfinish", use_glFinish, 0),
OPT_FLAG("waitvsync", waitvsync, 0),
OPT_INT("swapinterval", swap_interval, 0, OPTDEF_INT(1)),
OPT_CHOICE("dwmflush", dwm_flush, 0,
({"no", -1}, {"auto", 0}, {"windowed", 1}, {"yes", 2})),
OPT_FLAG("debug", use_gl_debug, 0),
OPT_STRING_VALIDATE("backend", backend, 0, mpgl_validate_backend_opt),
OPT_FLAG("sw", allow_sw, 0),
OPT_CHOICE("es", es, 0, ({"no", -1}, {"auto", 0}, {"yes", 1})),
OPT_INTPAIR("check-pattern", opt_pattern, 0),
OPT_INTRANGE("vsync-fences", opt_vsync_fences, 0, 0, NUM_VSYNC_FENCES),
OPT_SUBSTRUCT("", renderer_opts, gl_video_conf, 0),
OPT_SUBSTRUCT("", icc_opts, mp_icc_conf, 0),
{0},
};
#define CAPS VO_CAP_ROTATE90
const struct vo_driver video_out_opengl = {
.description = "Extended OpenGL Renderer",
.name = "opengl",
.caps = CAPS,
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_frame = draw_frame,
.flip_page = flip_page,
.uninit = uninit,
.priv_size = sizeof(struct gl_priv),
.options = options,
};
const struct vo_driver video_out_opengl_hq = {
.description = "Extended OpenGL Renderer (high quality rendering preset)",
.name = "opengl-hq",
.caps = CAPS,
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_frame = draw_frame,
.flip_page = flip_page,
.uninit = uninit,
.priv_size = sizeof(struct gl_priv),
.priv_defaults = &(const struct gl_priv){
.renderer_opts = (struct gl_video_opts *)&gl_video_opts_hq_def,
.es = -1,
},
.options = options,
};
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