mirror of https://github.com/mpv-player/mpv
157 lines
3.8 KiB
C
157 lines
3.8 KiB
C
/*
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* This file is part of mpv.
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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 <stddef.h>
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#include <assert.h>
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#include <unistd.h>
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#include <dlfcn.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <linux/fb.h>
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#include <EGL/fbdev_window.h>
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#include "common/common.h"
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#include "context.h"
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#include "egl_helpers.h"
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static bool get_fbdev_size(int *w, int *h)
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{
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int fd = open("/dev/fb0", O_RDWR | O_CLOEXEC);
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if (fd < 0)
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return false;
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struct fb_var_screeninfo info = {0};
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bool ok = !ioctl(fd, FBIOGET_VSCREENINFO, &info);
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if (ok) {
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*w = info.xres;
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*h = info.yres;
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}
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close(fd);
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return ok;
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}
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struct priv {
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struct mp_log *log;
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struct GL *gl;
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EGLDisplay egl_display;
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EGLConfig egl_config;
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EGLContext egl_context;
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EGLSurface egl_surface;
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struct fbdev_window egl_window;
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int w, h;
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};
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static void mali_uninit(struct MPGLContext *ctx)
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{
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struct priv *p = ctx->priv;
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if (p->egl_surface) {
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eglMakeCurrent(p->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
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EGL_NO_CONTEXT);
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eglDestroySurface(p->egl_display, p->egl_surface);
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}
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if (p->egl_context)
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eglDestroyContext(p->egl_display, p->egl_context);
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eglReleaseThread();
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}
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static int mali_init(struct MPGLContext *ctx, int flags)
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{
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struct priv *p = ctx->priv;
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p->log = ctx->vo->log;
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if (!get_fbdev_size(&p->w, &p->h)) {
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MP_FATAL(p, "Could not get fbdev size.\n");
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goto fail;
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}
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p->egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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if (!eglInitialize(p->egl_display, NULL, NULL)) {
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MP_FATAL(p, "EGL failed to initialize.\n");
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goto fail;
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}
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EGLConfig config;
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if (!mpegl_create_context(p->egl_display, p->log, flags, &p->egl_context,
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&config))
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goto fail;
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p->egl_window = (struct fbdev_window){
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.width = p->w,
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.height = p->h,
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};
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p->egl_surface = eglCreateWindowSurface(p->egl_display, config,
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(EGLNativeWindowType)&p->egl_window, NULL);
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if (p->egl_surface == EGL_NO_SURFACE) {
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MP_FATAL(p, "Could not create EGL surface!\n");
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goto fail;
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}
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if (!eglMakeCurrent(p->egl_display, p->egl_surface, p->egl_surface,
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p->egl_context))
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{
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MP_FATAL(p, "Failed to set context!\n");
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goto fail;
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}
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ctx->gl = talloc_zero(ctx, GL);
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mpegl_load_functions(ctx->gl, p->log);
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return 0;
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fail:
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mali_uninit(ctx);
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return -1;
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}
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static int mali_reconfig(struct MPGLContext *ctx)
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{
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struct priv *p = ctx->priv;
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ctx->vo->dwidth = p->w;
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ctx->vo->dheight = p->h;
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return 0;
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}
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static void mali_swap_buffers(MPGLContext *ctx)
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{
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struct priv *p = ctx->priv;
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eglSwapBuffers(p->egl_display, p->egl_surface);
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}
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static int mali_control(MPGLContext *ctx, int *events, int request, void *arg)
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{
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return VO_NOTIMPL;
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}
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const struct mpgl_driver mpgl_driver_mali = {
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.name = "mali-fbdev",
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.priv_size = sizeof(struct priv),
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.init = mali_init,
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.reconfig = mali_reconfig,
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.swap_buffers = mali_swap_buffers,
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.control = mali_control,
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.uninit = mali_uninit,
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};
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