mirror of
https://github.com/mpv-player/mpv
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3a6ade7a84
When not receiving frame callbacks, we should not draw anything to avoid blocking the OpenGL renderer. We do this by extending gl context api, by introducing new optional function 'is_active', that indicates whether OpenGL renderers should draw or not. This fixes issue #249.
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 is_active(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->is_active = is_active;
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}
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