From 508e35881ebc91ff19c93c091872ea2b725ffd4d Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Mon, 23 Sep 2019 13:49:36 +0200
Subject: context_android: move common code to a separate file

In preparation for a Vulkan Android context.
This also replaces querying for EGL_WIDTH and EGL_HEIGHT
with equivalent ANativeWindow calls.
---
 video/out/android_common.c | 113 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 video/out/android_common.c

(limited to 'video/out/android_common.c')

diff --git a/video/out/android_common.c b/video/out/android_common.c
new file mode 100644
index 0000000000..f333d56325
--- /dev/null
+++ b/video/out/android_common.c
@@ -0,0 +1,113 @@
+/*
+ * 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 <libavcodec/jni.h>
+#include <android/native_window_jni.h>
+
+#include "android_common.h"
+#include "common/msg.h"
+#include "options/m_config.h"
+#include "vo.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 vo_android_state {
+    struct mp_log *log;
+    ANativeWindow *native_window;
+};
+
+int vo_android_init(struct vo *vo)
+{
+    vo->android = talloc_zero(vo, struct vo_android_state);
+    struct vo_android_state *ctx = vo->android;
+
+    *ctx = (struct vo_android_state){
+        .log = mp_log_new(ctx, vo->log, "android"),
+    };
+
+    jobject surface = (jobject)(intptr_t)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;
+        }
+    }
+    ctx->native_window = ANativeWindow_fromSurface(env, surface);
+    (*vm)->DetachCurrentThread(vm);
+
+    return 1;
+fail:
+    talloc_free(ctx);
+    vo->android = NULL;
+    return 0;
+}
+
+void vo_android_uninit(struct vo *vo)
+{
+    struct vo_android_state *ctx = vo->android;
+    if (!ctx)
+        return;
+
+    if (ctx->native_window)
+        ANativeWindow_release(ctx->native_window);
+
+    talloc_free(ctx);
+    vo->android = NULL;
+}
+
+ANativeWindow *vo_android_native_window(struct vo *vo)
+{
+    struct vo_android_state *ctx = vo->android;
+    return ctx->native_window;
+}
+
+bool vo_android_surface_size(struct vo *vo, int *out_w, int *out_h)
+{
+    struct vo_android_state *ctx = vo->android;
+    void *tmp = talloc_new(NULL);
+    struct android_opts *opts = mp_get_config_group(tmp, vo->global, &android_conf);
+
+    int w = opts->surface_size.w, h = opts->surface_size.h;
+    if (!w)
+        w = ANativeWindow_getWidth(ctx->native_window);
+    if (!h)
+        h = ANativeWindow_getHeight(ctx->native_window);
+
+    talloc_free(tmp);
+    if (w <= 0 || h <= 0) {
+        MP_ERR(ctx, "Failed to get height and width.\n");
+        return false;
+    }
+    *out_w = w;
+    *out_h = h;
+    return true;
+}
-- 
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