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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 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.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stddef.h>
#include <assert.h>
#include <unistd.h>
#include <dlfcn.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <linux/fb.h>
#include <EGL/fbdev_window.h>
#include "common/common.h"
#include "context.h"
#include "egl_helpers.h"
static bool get_fbdev_size(int *w, int *h)
{
int fd = open("/dev/fb0", O_RDWR | O_CLOEXEC);
if (fd < 0)
return false;
struct fb_var_screeninfo info = {0};
bool ok = !ioctl(fd, FBIOGET_VSCREENINFO, &info);
if (ok) {
*w = info.xres;
*h = info.yres;
}
close(fd);
return ok;
}
struct priv {
struct mp_log *log;
struct GL *gl;
EGLDisplay egl_display;
EGLConfig egl_config;
EGLContext egl_context;
EGLSurface egl_surface;
struct fbdev_window egl_window;
int w, h;
};
static void mali_uninit(struct MPGLContext *ctx)
{
struct priv *p = ctx->priv;
if (p->egl_surface) {
eglMakeCurrent(p->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
eglDestroySurface(p->egl_display, p->egl_surface);
}
if (p->egl_context)
eglDestroyContext(p->egl_display, p->egl_context);
eglReleaseThread();
}
static int mali_init(struct MPGLContext *ctx, int flags)
{
struct priv *p = ctx->priv;
p->log = ctx->vo->log;
if (!get_fbdev_size(&p->w, &p->h)) {
MP_FATAL(p, "Could not get fbdev size.\n");
goto fail;
}
p->egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (!eglInitialize(p->egl_display, NULL, NULL)) {
MP_FATAL(p, "EGL failed to initialize.\n");
goto fail;
}
EGLConfig config;
if (!mpegl_create_context(p->egl_display, p->log, flags, &p->egl_context,
&config))
goto fail;
p->egl_window = (struct fbdev_window){
.width = p->w,
.height = p->h,
};
p->egl_surface = eglCreateWindowSurface(p->egl_display, config,
(EGLNativeWindowType)&p->egl_window, NULL);
if (p->egl_surface == EGL_NO_SURFACE) {
MP_FATAL(p, "Could not create EGL surface!\n");
goto fail;
}
if (!eglMakeCurrent(p->egl_display, p->egl_surface, p->egl_surface,
p->egl_context))
{
MP_FATAL(p, "Failed to set context!\n");
goto fail;
}
ctx->gl = talloc_zero(ctx, GL);
mpegl_load_functions(ctx->gl, p->log);
return 0;
fail:
mali_uninit(ctx);
return -1;
}
static int mali_reconfig(struct MPGLContext *ctx)
{
struct priv *p = ctx->priv;
ctx->vo->dwidth = p->w;
ctx->vo->dheight = p->h;
return 0;
}
static void mali_swap_buffers(MPGLContext *ctx)
{
struct priv *p = ctx->priv;
eglSwapBuffers(p->egl_display, p->egl_surface);
}
static int mali_control(MPGLContext *ctx, int *events, int request, void *arg)
{
return VO_NOTIMPL;
}
const struct mpgl_driver mpgl_driver_mali = {
.name = "mali-fbdev",
.priv_size = sizeof(struct priv),
.init = mali_init,
.reconfig = mali_reconfig,
.swap_buffers = mali_swap_buffers,
.control = mali_control,
.uninit = mali_uninit,
};
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