mirror of https://github.com/mpv-player/mpv
239 lines
7.9 KiB
C
239 lines
7.9 KiB
C
/*
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* This file is part of mpv video player.
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* Copyright © 2013 Alexander Preisinger <alexander.preisinger@gmail.com>
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "video/out/wayland_common.h"
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#include "context.h"
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static void egl_resize(struct vo_wayland_state *wl)
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{
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int32_t x = wl->window.sh_x;
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int32_t y = wl->window.sh_y;
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int32_t width = wl->window.sh_width;
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int32_t height = wl->window.sh_height;
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if (!wl->egl_context.egl_window)
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return;
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// get the real size of the window
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// this improves moving the window while resizing it
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wl_egl_window_get_attached_size(wl->egl_context.egl_window,
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&wl->window.width,
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&wl->window.height);
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MP_VERBOSE(wl, "resizing %dx%d -> %dx%d\n", wl->window.width,
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wl->window.height,
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width,
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height);
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if (x != 0)
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x = wl->window.width - width;
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if (y != 0)
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y = wl->window.height - height;
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wl_egl_window_resize(wl->egl_context.egl_window, width, height, x, y);
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wl->window.width = width;
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wl->window.height = height;
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/* set size for mplayer */
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wl->vo->dwidth = wl->window.width;
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wl->vo->dheight = wl->window.height;
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wl->vo->want_redraw = true;
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wl->window.events = 0;
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}
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static int egl_create_context(struct vo_wayland_state *wl,
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MPGLContext *ctx,
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bool enable_alpha)
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{
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EGLint major, minor, n;
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GL *gl = ctx->gl;
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const char *eglstr = "";
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if (!(wl->egl_context.egl.dpy = eglGetDisplay(wl->display.display)))
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return -1;
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EGLint config_attribs[] = {
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
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EGL_RED_SIZE, 1,
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EGL_GREEN_SIZE, 1,
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EGL_BLUE_SIZE, 1,
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EGL_ALPHA_SIZE, enable_alpha,
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EGL_DEPTH_SIZE, 1,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_NONE
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};
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/* major and minor here returns the supported EGL version (e.g.: 1.4) */
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if (eglInitialize(wl->egl_context.egl.dpy, &major, &minor) != EGL_TRUE)
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return -1;
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MP_VERBOSE(wl, "EGL version %d.%d\n", major, minor);
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EGLint context_attribs[] = {
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// aka EGL_CONTEXT_MAJOR_VERSION_KHR
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EGL_CONTEXT_CLIENT_VERSION, 3,
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EGL_NONE
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};
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if (eglBindAPI(EGL_OPENGL_API) != EGL_TRUE)
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return -1;
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eglChooseConfig(wl->egl_context.egl.dpy, config_attribs,
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&wl->egl_context.egl.conf, 1, &n);
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wl->egl_context.egl.ctx = eglCreateContext(wl->egl_context.egl.dpy,
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wl->egl_context.egl.conf,
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EGL_NO_CONTEXT,
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context_attribs);
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if (!wl->egl_context.egl.ctx) {
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/* fallback to any GL version */
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MP_WARN(wl, "can't create context for requested OpenGL version: "
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"fall back to any version available\n");
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context_attribs[0] = EGL_NONE;
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wl->egl_context.egl.ctx = eglCreateContext(wl->egl_context.egl.dpy,
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wl->egl_context.egl.conf,
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EGL_NO_CONTEXT,
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context_attribs);
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if (!wl->egl_context.egl.ctx)
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return -1;
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}
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eglMakeCurrent(wl->egl_context.egl.dpy, NULL, NULL, wl->egl_context.egl.ctx);
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eglstr = eglQueryString(wl->egl_context.egl.dpy, EGL_EXTENSIONS);
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mpgl_load_functions(gl, (void*(*)(const GLubyte*))eglGetProcAddress, eglstr,
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wl->log);
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ctx->native_display_type = "wl";
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ctx->native_display = wl->display.display;
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return 0;
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}
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static void egl_create_window(struct vo_wayland_state *wl)
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{
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wl->egl_context.egl_window = wl_egl_window_create(wl->window.video_surface,
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wl->window.width,
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wl->window.height);
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wl->egl_context.egl_surface = eglCreateWindowSurface(wl->egl_context.egl.dpy,
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wl->egl_context.egl.conf,
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wl->egl_context.egl_window,
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NULL);
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eglMakeCurrent(wl->egl_context.egl.dpy,
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wl->egl_context.egl_surface,
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wl->egl_context.egl_surface,
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wl->egl_context.egl.ctx);
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wl_display_dispatch_pending(wl->display.display);
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/**
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* <http://lists.freedesktop.org/archives/wayland-devel/2013-November/012019.html>
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*
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* The main change is that if the swap interval is 0 then Mesa won't install a
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* frame callback so that eglSwapBuffers can be executed as often as necessary.
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* Instead it will do a sync request after the swap buffers. It will block for
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* sync complete event in get_back_bo instead of the frame callback. The
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* compositor is likely to send a release event while processing the new buffer
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* attach and this makes sure we will receive that before deciding whether to
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* allocate a new buffer.
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*/
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eglSwapInterval(wl->egl_context.egl.dpy, 0);
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}
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static int waylandgl_reconfig(struct MPGLContext *ctx)
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{
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struct vo_wayland_state * wl = ctx->vo->wayland;
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if (!vo_wayland_config(ctx->vo))
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return -1;
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if (!wl->egl_context.egl_window)
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egl_create_window(wl);
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return 0;
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}
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static void waylandgl_uninit(MPGLContext *ctx)
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{
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struct vo_wayland_state *wl = ctx->vo->wayland;
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if (wl->egl_context.egl.ctx) {
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eglReleaseThread();
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if (wl->egl_context.egl_window)
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wl_egl_window_destroy(wl->egl_context.egl_window);
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eglDestroySurface(wl->egl_context.egl.dpy, wl->egl_context.egl_surface);
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eglMakeCurrent(wl->egl_context.egl.dpy, NULL, NULL, EGL_NO_CONTEXT);
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eglDestroyContext(wl->egl_context.egl.dpy, wl->egl_context.egl.ctx);
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}
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eglTerminate(wl->egl_context.egl.dpy);
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wl->egl_context.egl.ctx = NULL;
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vo_wayland_uninit(ctx->vo);
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}
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static void waylandgl_swap_buffers(MPGLContext *ctx)
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{
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struct vo_wayland_state *wl = ctx->vo->wayland;
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if (!wl->frame.callback)
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vo_wayland_request_frame(ctx->vo, NULL, NULL);
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if (!vo_wayland_wait_frame(ctx->vo))
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MP_DBG(wl, "discarding frame callback\n");
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eglSwapBuffers(wl->egl_context.egl.dpy, wl->egl_context.egl_surface);
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}
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static int waylandgl_control(MPGLContext *ctx, int *events, int request,
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void *data)
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{
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struct vo_wayland_state *wl = ctx->vo->wayland;
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int r = vo_wayland_control(ctx->vo, events, request, data);
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if (*events & VO_EVENT_RESIZE)
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egl_resize(wl);
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return r;
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}
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static int waylandgl_init(struct MPGLContext *ctx, int flags)
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{
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if (!vo_wayland_init(ctx->vo))
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return -1;
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return egl_create_context(ctx->vo->wayland, ctx, !!(flags & VOFLAG_ALPHA));
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}
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const struct mpgl_driver mpgl_driver_wayland = {
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.name = "wayland",
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.init = waylandgl_init,
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.reconfig = waylandgl_reconfig,
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.swap_buffers = waylandgl_swap_buffers,
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.control = waylandgl_control,
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.uninit = waylandgl_uninit,
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};
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