mpv/video/out/opengl/context_wayland.c

209 lines
6.7 KiB
C

/*
* This file is part of mpv video player.
* Copyright © 2013 Alexander Preisinger <alexander.preisinger@gmail.com>
*
* 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 "video/out/wayland_common.h"
#include "context.h"
#include "egl_helpers.h"
static void egl_resize(struct vo_wayland_state *wl)
{
int32_t x = wl->window.sh_x;
int32_t y = wl->window.sh_y;
int32_t width = wl->window.sh_width;
int32_t height = wl->window.sh_height;
int32_t scale = 1;
if (!wl->egl_context.egl_window)
return;
if (wl->display.current_output)
scale = wl->display.current_output->scale;
// get the real size of the window
// this improves moving the window while resizing it
wl_egl_window_get_attached_size(wl->egl_context.egl_window,
&wl->window.width,
&wl->window.height);
MP_VERBOSE(wl, "resizing %dx%d -> %dx%d\n", wl->window.width,
wl->window.height,
width,
height);
if (x != 0)
x = wl->window.width - width;
if (y != 0)
y = wl->window.height - height;
wl_surface_set_buffer_scale(wl->window.video_surface, scale);
wl_egl_window_resize(wl->egl_context.egl_window, scale*width, scale*height, x, y);
wl->window.width = width;
wl->window.height = height;
/* set size for mplayer */
wl->vo->dwidth = scale*wl->window.width;
wl->vo->dheight = scale*wl->window.height;
wl->vo->want_redraw = true;
}
static int egl_create_context(struct vo_wayland_state *wl, MPGLContext *ctx,
int flags)
{
GL *gl = ctx->gl;
const char *eglstr = "";
if (!(wl->egl_context.egl.dpy = eglGetDisplay(wl->display.display)))
return -1;
if (eglInitialize(wl->egl_context.egl.dpy, NULL, NULL) != EGL_TRUE)
return -1;
if (!mpegl_create_context(wl->egl_context.egl.dpy, wl->log, flags,
&wl->egl_context.egl.ctx,
&wl->egl_context.egl.conf))
return -1;
eglMakeCurrent(wl->egl_context.egl.dpy, NULL, NULL, wl->egl_context.egl.ctx);
eglstr = eglQueryString(wl->egl_context.egl.dpy, EGL_EXTENSIONS);
mpgl_load_functions(gl, (void*(*)(const GLubyte*))eglGetProcAddress, eglstr,
wl->log);
ctx->native_display_type = "wl";
ctx->native_display = wl->display.display;
return 0;
}
static void egl_create_window(struct vo_wayland_state *wl)
{
wl->egl_context.egl_window = wl_egl_window_create(wl->window.video_surface,
wl->window.width,
wl->window.height);
wl->egl_context.egl_surface = eglCreateWindowSurface(wl->egl_context.egl.dpy,
wl->egl_context.egl.conf,
wl->egl_context.egl_window,
NULL);
eglMakeCurrent(wl->egl_context.egl.dpy,
wl->egl_context.egl_surface,
wl->egl_context.egl_surface,
wl->egl_context.egl.ctx);
wl_display_dispatch_pending(wl->display.display);
/**
* <http://lists.freedesktop.org/archives/wayland-devel/2013-November/012019.html>
*
* The main change is that if the swap interval is 0 then Mesa won't install a
* frame callback so that eglSwapBuffers can be executed as often as necessary.
* Instead it will do a sync request after the swap buffers. It will block for
* sync complete event in get_back_bo instead of the frame callback. The
* compositor is likely to send a release event while processing the new buffer
* attach and this makes sure we will receive that before deciding whether to
* allocate a new buffer.
*/
eglSwapInterval(wl->egl_context.egl.dpy, 0);
}
static int waylandgl_reconfig(struct MPGLContext *ctx)
{
struct vo_wayland_state * wl = ctx->vo->wayland;
if (!vo_wayland_config(ctx->vo))
return -1;
if (!wl->egl_context.egl_window)
egl_create_window(wl);
return 0;
}
static void waylandgl_uninit(MPGLContext *ctx)
{
struct vo_wayland_state *wl = ctx->vo->wayland;
if (wl->egl_context.egl.ctx) {
eglReleaseThread();
if (wl->egl_context.egl_window)
wl_egl_window_destroy(wl->egl_context.egl_window);
eglDestroySurface(wl->egl_context.egl.dpy, wl->egl_context.egl_surface);
eglMakeCurrent(wl->egl_context.egl.dpy, NULL, NULL, EGL_NO_CONTEXT);
eglDestroyContext(wl->egl_context.egl.dpy, wl->egl_context.egl.ctx);
}
eglTerminate(wl->egl_context.egl.dpy);
wl->egl_context.egl.ctx = NULL;
vo_wayland_uninit(ctx->vo);
}
static void waylandgl_swap_buffers(MPGLContext *ctx)
{
struct vo_wayland_state *wl = ctx->vo->wayland;
vo_wayland_wait_events(ctx->vo, 0);
eglSwapBuffers(wl->egl_context.egl.dpy, wl->egl_context.egl_surface);
}
static int waylandgl_control(MPGLContext *ctx, int *events, int request,
void *data)
{
struct vo_wayland_state *wl = ctx->vo->wayland;
int r = vo_wayland_control(ctx->vo, events, request, data);
if (*events & VO_EVENT_RESIZE)
egl_resize(wl);
return r;
}
static void wayland_wakeup(struct MPGLContext *ctx)
{
vo_wayland_wakeup(ctx->vo);
}
static void wayland_wait_events(struct MPGLContext *ctx, int64_t until_time_us)
{
vo_wayland_wait_events(ctx->vo, until_time_us);
}
static int waylandgl_init(struct MPGLContext *ctx, int flags)
{
if (!vo_wayland_init(ctx->vo))
return -1;
return egl_create_context(ctx->vo->wayland, ctx, flags);
}
const struct mpgl_driver mpgl_driver_wayland = {
.name = "wayland",
.init = waylandgl_init,
.reconfig = waylandgl_reconfig,
.swap_buffers = waylandgl_swap_buffers,
.control = waylandgl_control,
.wakeup = wayland_wakeup,
.wait_events = wayland_wait_events,
.uninit = waylandgl_uninit,
};