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/*
* This file is part of mpv.
*
* 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/>.
*
* You can alternatively redistribute this file 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.
*/
#include <X11/Xlib.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include "common/common.h"
#include "x11_common.h"
#include "gl_common.h"
struct priv {
EGLDisplay egl_display;
EGLContext egl_context;
EGLSurface egl_surface;
};
static EGLConfig select_fb_config_egl(struct MPGLContext *ctx, bool es)
{
struct priv *p = ctx->priv;
EGLint attributes[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, 0,
EGL_RENDERABLE_TYPE, es ? EGL_OPENGL_ES2_BIT : EGL_OPENGL_BIT,
EGL_NONE
};
EGLint config_count;
EGLConfig config;
eglChooseConfig(p->egl_display, attributes, &config, 1, &config_count);
if (!config_count) {
MP_FATAL(ctx->vo, "Could find EGL configuration!\n");
return NULL;
}
return config;
}
static bool create_context_egl(MPGLContext *ctx, EGLConfig config,
EGLNativeWindowType window, bool es)
{
struct priv *p = ctx->priv;
EGLint context_attributes[] = {
// aka EGL_CONTEXT_MAJOR_VERSION_KHR
EGL_CONTEXT_CLIENT_VERSION, es ? 2 : 3,
EGL_NONE
};
p->egl_surface = eglCreateWindowSurface(p->egl_display, config, window, NULL);
if (p->egl_surface == EGL_NO_SURFACE) {
MP_FATAL(ctx->vo, "Could not create EGL surface!\n");
return false;
}
p->egl_context = eglCreateContext(p->egl_display, config,
EGL_NO_CONTEXT, context_attributes);
if (p->egl_context == EGL_NO_CONTEXT) {
MP_FATAL(ctx->vo, "Could not create EGL context!\n");
return false;
}
eglMakeCurrent(p->egl_display, p->egl_surface, p->egl_surface,
p->egl_context);
return true;
}
static bool config_window_x11_egl(struct MPGLContext *ctx, int flags)
{
struct priv *p = ctx->priv;
struct vo *vo = ctx->vo;
bool es = flags & VOFLAG_GLES;
if (!eglBindAPI(es ? EGL_OPENGL_ES_API : EGL_OPENGL_API)) {
MP_FATAL(vo, "Could not bind API (%s).\n", es ? "GLES" : "GL");
return false;
}
p->egl_display = eglGetDisplay(vo->x11->display);
if (!eglInitialize(p->egl_display, NULL, NULL)) {
MP_FATAL(vo, "Could not initialize EGL.\n");
return false;
}
EGLConfig config = select_fb_config_egl(ctx, es);
if (!config)
return false;
int vID, n;
eglGetConfigAttrib(p->egl_display, config, EGL_NATIVE_VISUAL_ID, &vID);
XVisualInfo template = {.visualid = vID};
XVisualInfo *vi = XGetVisualInfo(vo->x11->display, VisualIDMask, &template, &n);
if (!vi) {
MP_FATAL(ctx->vo, "Getting X visual failed!\n");
return false;
}
vo_x11_config_vo_window(vo, vi, flags | VOFLAG_HIDDEN, "gl");
XFree(vi);
if (!create_context_egl(ctx, config, (EGLNativeWindowType)vo->x11->window, es))
{
vo_x11_uninit(ctx->vo);
return false;
}
void *(*gpa)(const GLubyte*) = (void *(*)(const GLubyte*))eglGetProcAddress;
mpgl_load_functions(ctx->gl, gpa, NULL, vo->log);
return true;
}
static int mpegl_init(struct MPGLContext *ctx, int vo_flags)
{
if (vo_x11_init(ctx->vo) && config_window_x11_egl(ctx, vo_flags))
return 0;
vo_x11_uninit(ctx->vo);
return -1;
}
static int mpegl_reconfig(struct MPGLContext *ctx, int flags)
{
vo_x11_config_vo_window(ctx->vo, NULL, flags, "gl");
return 0;
}
static int mpegl_control(struct MPGLContext *ctx, int *events, int request,
void *arg)
{
return vo_x11_control(ctx->vo, events, request, arg);
}
static void mpegl_uninit(MPGLContext *ctx)
{
struct priv *p = ctx->priv;
if (p->egl_context) {
eglMakeCurrent(p->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
eglDestroyContext(p->egl_display, p->egl_context);
}
p->egl_context = EGL_NO_CONTEXT;
vo_x11_uninit(ctx->vo);
}
static void mpegl_swap_buffers(MPGLContext *ctx)
{
struct priv *p = ctx->priv;
eglSwapBuffers(p->egl_display, p->egl_surface);
}
const struct mpgl_driver mpgl_driver_x11egl = {
.name = "x11egl",
.priv_size = sizeof(struct priv),
.init = mpegl_init,
.reconfig = mpegl_reconfig,
.swap_buffers = mpegl_swap_buffers,
.control = mpegl_control,
.uninit = mpegl_uninit,
};
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