mirror of
https://github.com/mpv-player/mpv
synced 2024-12-23 07:12:39 +00:00
220 lines
6.2 KiB
C
220 lines
6.2 KiB
C
|
/*
|
||
|
* 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 <stddef.h>
|
||
|
#include <assert.h>
|
||
|
|
||
|
#include <bcm_host.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;
|
||
|
DISPMANX_DISPLAY_HANDLE_T display;
|
||
|
DISPMANX_ELEMENT_HANDLE_T window;
|
||
|
DISPMANX_UPDATE_HANDLE_T update;
|
||
|
// yep, the API keeps a pointer to it
|
||
|
EGL_DISPMANX_WINDOW_T egl_window;
|
||
|
int w, h;
|
||
|
};
|
||
|
|
||
|
static void *get_proc_address(const GLubyte *name)
|
||
|
{
|
||
|
void *p = eglGetProcAddress(name);
|
||
|
// It looks like eglGetProcAddress() should work even for builtin
|
||
|
// functions, but it doesn't work at least with RPI/Broadcom crap.
|
||
|
// (EGL 1.4, which current RPI firmware pretends to support, definitely
|
||
|
// is required to return non-extension functions.)
|
||
|
if (!p) {
|
||
|
void *h = dlopen("/opt/vc/lib/libGLESv2.so", RTLD_LAZY);
|
||
|
if (h) {
|
||
|
p = dlsym(h, name);
|
||
|
dlclose(h);
|
||
|
}
|
||
|
}
|
||
|
return p;
|
||
|
}
|
||
|
|
||
|
static EGLConfig select_fb_config_egl(struct MPGLContext *ctx)
|
||
|
{
|
||
|
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, EGL_OPENGL_ES2_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 sc_config_window(struct MPGLContext *ctx, int flags)
|
||
|
{
|
||
|
struct priv *p = ctx->priv;
|
||
|
struct vo *vo = ctx->vo;
|
||
|
|
||
|
if (p->egl_context) {
|
||
|
vo->dwidth = p->w;
|
||
|
vo->dheight = p->h;
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
bcm_host_init();
|
||
|
|
||
|
p->display = vc_dispmanx_display_open(0);
|
||
|
p->update = vc_dispmanx_update_start(0);
|
||
|
if (!p->display || !p->update) {
|
||
|
MP_FATAL(ctx->vo, "Could not get DISPMANX objects.\n");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
uint32_t w, h;
|
||
|
if (graphics_get_display_size(0, &w, &h) < 0) {
|
||
|
MP_FATAL(ctx->vo, "Could not get display size.\n");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// dispmanx is like a neanderthal version of Wayland - you can add an
|
||
|
// overlay any place on the screen. Just use the whole screen.
|
||
|
VC_RECT_T dst = {.width = w, .height = h};
|
||
|
VC_RECT_T src = {.width = w << 16, .height = h << 16};
|
||
|
VC_DISPMANX_ALPHA_T alpha = {
|
||
|
.flags = DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS,
|
||
|
.opacity = 0xFF,
|
||
|
};
|
||
|
p->window = vc_dispmanx_element_add(p->update, p->display, 1, &dst, 0,
|
||
|
&src, DISPMANX_PROTECTION_NONE, &alpha, 0, 0);
|
||
|
if (!p->window) {
|
||
|
MP_FATAL(ctx->vo, "Could not add DISPMANX element.\n");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
vc_dispmanx_update_submit_sync(p->update);
|
||
|
|
||
|
p->egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
|
||
|
if (!eglInitialize(p->egl_display, NULL, NULL)) {
|
||
|
MP_FATAL(ctx->vo, "EGL failed to initialize.\n");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
eglBindAPI(EGL_OPENGL_ES_API);
|
||
|
|
||
|
EGLConfig config = select_fb_config_egl(ctx);
|
||
|
if (!config)
|
||
|
return false;
|
||
|
|
||
|
p->egl_window = (EGL_DISPMANX_WINDOW_T){.element = p->window, .width = w, .height = h};
|
||
|
p->egl_surface = eglCreateWindowSurface(p->egl_display, config, &p->egl_window, NULL);
|
||
|
|
||
|
if (p->egl_surface == EGL_NO_SURFACE) {
|
||
|
MP_FATAL(ctx->vo, "Could not create EGL surface!\n");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
EGLint context_attributes[] = {
|
||
|
EGL_CONTEXT_CLIENT_VERSION, 2,
|
||
|
EGL_NONE
|
||
|
};
|
||
|
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);
|
||
|
|
||
|
const char *exts = eglQueryString(p->egl_display, EGL_EXTENSIONS);
|
||
|
mpgl_load_functions(ctx->gl, get_proc_address, exts, vo->log);
|
||
|
|
||
|
vo->dwidth = p->w = w;
|
||
|
vo->dheight = p->h = h;
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
static void sc_releaseGlContext(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;
|
||
|
eglTerminate(p->egl_display);
|
||
|
vc_dispmanx_display_close(p->display);
|
||
|
}
|
||
|
|
||
|
static void sc_swapGlBuffers(MPGLContext *ctx)
|
||
|
{
|
||
|
struct priv *p = ctx->priv;
|
||
|
eglSwapBuffers(p->egl_display, p->egl_surface);
|
||
|
}
|
||
|
|
||
|
static int sc_vo_init(struct vo *vo)
|
||
|
{
|
||
|
return 1;
|
||
|
}
|
||
|
|
||
|
static void sc_vo_uninit(struct vo *vo)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
static int sc_vo_control(struct vo *vo, int *events, int request, void *arg)
|
||
|
{
|
||
|
return VO_NOTIMPL;
|
||
|
}
|
||
|
|
||
|
void mpgl_set_backend_rpi(MPGLContext *ctx)
|
||
|
{
|
||
|
ctx->priv = talloc_zero(ctx, struct priv);
|
||
|
ctx->config_window = sc_config_window;
|
||
|
ctx->releaseGlContext = sc_releaseGlContext;
|
||
|
ctx->swapGlBuffers = sc_swapGlBuffers;
|
||
|
ctx->vo_init = sc_vo_init;
|
||
|
ctx->vo_uninit = sc_vo_uninit;
|
||
|
ctx->vo_control = sc_vo_control;
|
||
|
}
|