mirror of
https://github.com/mpv-player/mpv
synced 2025-02-28 03:10:55 +00:00
8c3a92d6cb
Currently, the wayland backend needs extra work to avoid drawing more
often than the wayland frame callback allows. (This is not ideal, but
will be fixed at a later time.)
Unify this with the start_frame callback added for cocoa. Some details
change for the better. For example, if a frame is dropped, and a redraw
is done afterwards, the actually correct frame is redrawn, instead
whatever was in the textures from before the dropped frame.
(cherry picked from commit 0a7abbda6b)
234 lines
7.5 KiB
C
234 lines
7.5 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "wayland_common.h"
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#include "gl_common.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 bool 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 false;
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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 false;
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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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EGL_CONTEXT_MAJOR_VERSION_KHR,
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MPGL_VER_GET_MAJOR(ctx->requested_gl_version),
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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 false;
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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 false;
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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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return true;
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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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static bool config_window_wayland(struct MPGLContext *ctx, int flags)
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{
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struct vo_wayland_state * wl = ctx->vo->wayland;
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bool enable_alpha = !!(flags & VOFLAG_ALPHA);
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bool ret = false;
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if (!vo_wayland_config(ctx->vo, flags))
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return false;
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if (!wl->egl_context.egl.ctx) {
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/* Create OpenGL context */
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ret = egl_create_context(wl, ctx, enable_alpha);
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/* If successfully created the context and we don't want to hide the
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* window than also create the window immediately */
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if (ret && !(VOFLAG_HIDDEN & flags))
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egl_create_window(wl);
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return ret;
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}
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else {
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if (!wl->egl_context.egl_window) {
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/* If the context exists and the hidden flag is unset then
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* create the window */
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if (!(VOFLAG_HIDDEN & flags))
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egl_create_window(wl);
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}
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return true;
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}
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}
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static void releaseGlContext_wayland(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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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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}
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static void swapGlBuffers_wayland(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.pending)
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return;
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eglSwapBuffers(wl->egl_context.egl.dpy, wl->egl_context.egl_surface);
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wl->frame.pending = false;
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}
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static int control(struct vo *vo, int *events, int request, void *data)
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{
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struct vo_wayland_state *wl = vo->wayland;
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int r = vo_wayland_control(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 bool start_frame(struct MPGLContext *ctx)
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{
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struct vo_wayland_state *wl = ctx->vo->wayland;
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return wl->frame.pending;
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}
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void mpgl_set_backend_wayland(MPGLContext *ctx)
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{
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ctx->config_window = config_window_wayland;
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ctx->releaseGlContext = releaseGlContext_wayland;
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ctx->swapGlBuffers = swapGlBuffers_wayland;
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ctx->vo_control = control;
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ctx->vo_init = vo_wayland_init;
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ctx->vo_uninit = vo_wayland_uninit;
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ctx->start_frame = start_frame;
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}
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