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mpv/video/out/gl_wayland.c

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/*
* 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 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/>.
*/
#include "wayland_common.h"
#include "gl_common.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;
if (!wl->egl_context.egl_window)
return;
// 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_egl_window_resize(wl->egl_context.egl_window, width, height, x, y);
wl->window.width = width;
wl->window.height = height;
/* set size for mplayer */
wl->vo->dwidth = wl->window.width;
wl->vo->dheight = wl->window.height;
wl->vo->want_redraw = true;
wl->window.events = 0;
}
static bool egl_create_context(struct vo_wayland_state *wl,
MPGLContext *ctx,
bool enable_alpha)
{
EGLint major, minor, n;
GL *gl = ctx->gl;
const char *eglstr = "";
if (!(wl->egl_context.egl.dpy = eglGetDisplay(wl->display.display)))
return false;
EGLint config_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, enable_alpha,
EGL_DEPTH_SIZE, 1,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
/* major and minor here returns the supported EGL version (e.g.: 1.4) */
if (eglInitialize(wl->egl_context.egl.dpy, &major, &minor) != EGL_TRUE)
return false;
MP_VERBOSE(wl, "EGL version %d.%d\n", major, minor);
EGLint context_attribs[] = {
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
EGL_NONE
};
if (eglBindAPI(EGL_OPENGL_API) != EGL_TRUE)
return false;
eglChooseConfig(wl->egl_context.egl.dpy, config_attribs,
&wl->egl_context.egl.conf, 1, &n);
wl->egl_context.egl.ctx = eglCreateContext(wl->egl_context.egl.dpy,
wl->egl_context.egl.conf,
EGL_NO_CONTEXT,
context_attribs);
if (!wl->egl_context.egl.ctx) {
/* fallback to any GL version */
MP_WARN(wl, "can't create context for requested OpenGL version: "
"fall back to any version available\n");
context_attribs[0] = EGL_NONE;
wl->egl_context.egl.ctx = eglCreateContext(wl->egl_context.egl.dpy,
wl->egl_context.egl.conf,
EGL_NO_CONTEXT,
context_attribs);
if (!wl->egl_context.egl.ctx)
return false;
}
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);
return true;
}
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);
}
static bool config_window_wayland(struct MPGLContext *ctx, int flags)
{
struct vo_wayland_state * wl = ctx->vo->wayland;
bool enable_alpha = !!(flags & VOFLAG_ALPHA);
bool ret = false;
if (!vo_wayland_config(ctx->vo, flags))
return false;
if (!wl->egl_context.egl.ctx) {
/* Create OpenGL context */
ret = egl_create_context(wl, ctx, enable_alpha);
/* If successfully created the context and we don't want to hide the
* window than also create the window immediately */
if (ret && !(VOFLAG_HIDDEN & flags))
egl_create_window(wl);
return ret;
}
else {
if (!wl->egl_context.egl_window) {
/* If the context exists and the hidden flag is unset then
* create the window */
if (!(VOFLAG_HIDDEN & flags))
egl_create_window(wl);
}
return true;
}
}
static void releaseGlContext_wayland(MPGLContext *ctx)
{
struct vo_wayland_state *wl = ctx->vo->wayland;
if (wl->egl_context.egl.ctx) {
eglReleaseThread();
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;
}
static void swapGlBuffers_wayland(MPGLContext *ctx)
{
struct vo_wayland_state *wl = ctx->vo->wayland;
if (!wl->frame.pending)
return;
eglSwapBuffers(wl->egl_context.egl.dpy, wl->egl_context.egl_surface);
wl->frame.pending = false;
}
static int control(struct vo *vo, int *events, int request, void *data)
{
struct vo_wayland_state *wl = vo->wayland;
int r = vo_wayland_control(vo, events, request, data);
if (*events & VO_EVENT_RESIZE)
egl_resize(wl);
return r;
}
static bool start_frame(struct MPGLContext *ctx)
{
struct vo_wayland_state *wl = ctx->vo->wayland;
return wl->frame.pending;
}
void mpgl_set_backend_wayland(MPGLContext *ctx)
{
ctx->config_window = config_window_wayland;
ctx->releaseGlContext = releaseGlContext_wayland;
ctx->swapGlBuffers = swapGlBuffers_wayland;
ctx->vo_control = control;
ctx->vo_init = vo_wayland_init;
ctx->vo_uninit = vo_wayland_uninit;
ctx->start_frame = start_frame;
}
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