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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 <EGL/egl.h>
#include <EGL/eglext.h>
#include <libavcodec/jni.h>
#include <android/native_window_jni.h>
#include "egl_helpers.h"
#include "common/common.h"
#include "options/m_config.h"
#include "context.h"
struct android_opts {
struct m_geometry surface_size;
};
#define OPT_BASE_STRUCT struct android_opts
const struct m_sub_options android_conf = {
.opts = (const struct m_option[]) {
OPT_SIZE_BOX("android-surface-size", surface_size, UPDATE_VO_RESIZE),
{0}
},
.size = sizeof(struct android_opts),
};
struct priv {
struct GL gl;
EGLDisplay egl_display;
EGLConfig egl_config;
EGLContext egl_context;
EGLSurface egl_surface;
ANativeWindow *native_window;
};
static void android_swap_buffers(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
eglSwapBuffers(p->egl_display, p->egl_surface);
}
static void android_uninit(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
ra_gl_ctx_uninit(ctx);
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);
if (p->native_window) {
ANativeWindow_release(p->native_window);
p->native_window = NULL;
}
}
static bool android_init(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv = talloc_zero(ctx, struct priv);
jobject surface = (jobject)(intptr_t)ctx->vo->opts->WinID;
JavaVM *vm = (JavaVM *)av_jni_get_java_vm(NULL);
JNIEnv *env;
int ret = (*vm)->GetEnv(vm, (void**)&env, JNI_VERSION_1_6);
if (ret == JNI_EDETACHED) {
if ((*vm)->AttachCurrentThread(vm, &env, NULL) != 0) {
MP_FATAL(ctx, "Could not attach java VM.\n");
goto fail;
}
}
p->native_window = ANativeWindow_fromSurface(env, surface);
(*vm)->DetachCurrentThread(vm);
p->egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (!eglInitialize(p->egl_display, NULL, NULL)) {
MP_FATAL(ctx, "EGL failed to initialize.\n");
goto fail;
}
EGLConfig config;
if (!mpegl_create_context(ctx, p->egl_display, &p->egl_context, &config))
goto fail;
EGLint format;
eglGetConfigAttrib(p->egl_display, config, EGL_NATIVE_VISUAL_ID, &format);
ANativeWindow_setBuffersGeometry(p->native_window, 0, 0, format);
p->egl_surface = eglCreateWindowSurface(p->egl_display, config,
(EGLNativeWindowType)p->native_window, NULL);
if (p->egl_surface == EGL_NO_SURFACE) {
MP_FATAL(ctx, "Could not create EGL surface!\n");
goto fail;
}
if (!eglMakeCurrent(p->egl_display, p->egl_surface, p->egl_surface,
p->egl_context)) {
MP_FATAL(ctx, "Failed to set context!\n");
goto fail;
}
mpegl_load_functions(&p->gl, ctx->log);
struct ra_gl_ctx_params params = {
.swap_buffers = android_swap_buffers,
};
if (!ra_gl_ctx_init(ctx, &p->gl, params))
goto fail;
return true;
fail:
android_uninit(ctx);
return false;
}
static bool android_reconfig(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
void *tmp = talloc_new(NULL);
struct android_opts *opts = mp_get_config_group(tmp, ctx->global, &android_conf);
int w = opts->surface_size.w, h = opts->surface_size.h;
if (!w)
eglQuerySurface(p->egl_display, p->egl_surface, EGL_WIDTH, &w);
if (!h)
eglQuerySurface(p->egl_display, p->egl_surface, EGL_HEIGHT, &h);
if (!w || !h) {
MP_FATAL(ctx, "Failed to get height and width!\n");
return false;
}
ctx->vo->dwidth = w;
ctx->vo->dheight = h;
ra_gl_ctx_resize(ctx->swapchain, w, h, 0);
talloc_free(tmp);
return true;
}
static int android_control(struct ra_ctx *ctx, int *events, int request, void *arg)
{
return VO_NOTIMPL;
}
const struct ra_ctx_fns ra_ctx_android = {
.type = "opengl",
.name = "android",
.reconfig = android_reconfig,
.control = android_control,
.init = android_init,
.uninit = android_uninit,
};
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