From e350ceef4c34291fc3c4e0e0fc687ae150f9ac33 Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Sat, 21 Sep 2019 22:30:10 +0200
Subject: vo_gpu: vulkan: add Android context

---
 video/out/gpu/context.c            |  4 ++
 video/out/vulkan/context_android.c | 94 ++++++++++++++++++++++++++++++++++++++
 wscript_build.py                   |  1 +
 3 files changed, 99 insertions(+)
 create mode 100644 video/out/vulkan/context_android.c

diff --git a/video/out/gpu/context.c b/video/out/gpu/context.c
index bf38e4c9bc..9561b534d8 100644
--- a/video/out/gpu/context.c
+++ b/video/out/gpu/context.c
@@ -49,6 +49,7 @@ extern const struct ra_ctx_fns ra_ctx_android;
 extern const struct ra_ctx_fns ra_ctx_vulkan_wayland;
 extern const struct ra_ctx_fns ra_ctx_vulkan_win;
 extern const struct ra_ctx_fns ra_ctx_vulkan_xlib;
+extern const struct ra_ctx_fnd ra_ctx_vulkan_android;
 
 /* Direct3D 11 */
 extern const struct ra_ctx_fns ra_ctx_d3d11;
@@ -93,6 +94,9 @@ static const struct ra_ctx_fns *contexts[] = {
 // Vulkan contexts:
 #if HAVE_VULKAN
 
+#if HAVE_ANDROID
+    &ra_ctx_vulkan_android,
+#endif
 #if HAVE_WIN32_DESKTOP
     &ra_ctx_vulkan_win,
 #endif
diff --git a/video/out/vulkan/context_android.c b/video/out/vulkan/context_android.c
new file mode 100644
index 0000000000..212fe0824b
--- /dev/null
+++ b/video/out/vulkan/context_android.c
@@ -0,0 +1,94 @@
+/*
+ * 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 <vulkan/vulkan.h>
+#include <vulkan/vulkan_android.h>
+
+#include "video/out/android_common.h"
+#include "common.h"
+#include "context.h"
+#include "utils.h"
+
+struct priv {
+    struct mpvk_ctx vk;
+};
+
+static void android_uninit(struct ra_ctx *ctx)
+{
+    struct priv *p = ctx->priv;
+    ra_vk_ctx_uninit(ctx);
+    mpvk_uninit(&p->vk);
+
+    vo_android_uninit(ctx->vo);
+}
+
+static bool android_init(struct ra_ctx *ctx)
+{
+    struct priv *p = ctx->priv = talloc_zero(ctx, struct priv);
+    struct mpvk_ctx *vk = &p->vk;
+    int msgl = ctx->opts.probing ? MSGL_V : MSGL_ERR;
+
+    if (!vo_android_init(ctx->vo))
+        goto fail;
+
+    if (!mpvk_init(vk, ctx, VK_KHR_ANDROID_SURFACE_EXTENSION_NAME))
+        goto fail;
+
+    VkAndroidSurfaceCreateInfoKHR info = {
+         .sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR,
+         .window = vo_android_native_window(ctx->vo)
+    };
+
+    VkInstance inst = vk->vkinst->instance;
+    VkResult res = vkCreateAndroidSurfaceKHR(inst, &info, NULL, &vk->surface);
+    if (res != VK_SUCCESS) {
+        MP_MSG(ctx, msgl, "Failed creating Android surface\n");
+        goto fail;
+    }
+
+    if (!ra_vk_ctx_init(ctx, vk, VK_PRESENT_MODE_FIFO_KHR))
+        goto fail;
+
+    return true;
+fail:
+    android_uninit(ctx);
+    return false;
+}
+
+static bool android_reconfig(struct ra_ctx *ctx)
+{
+    int w, h;
+    if (!vo_android_surface_size(ctx->vo, &w, &h))
+        return false;
+
+    ra_vk_ctx_resize(ctx, w, h);
+    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_vulkan_android = {
+    .type           = "vulkan",
+    .name           = "androidvk",
+    .reconfig       = android_reconfig,
+    .control        = android_control,
+    .init           = android_init,
+    .uninit         = android_uninit,
+};
diff --git a/wscript_build.py b/wscript_build.py
index ae15c4c44f..50f8e641ea 100644
--- a/wscript_build.py
+++ b/wscript_build.py
@@ -488,6 +488,7 @@ def build(ctx):
         ( "video/out/vo_x11.c" ,                 "x11" ),
         ( "video/out/vo_xv.c",                   "xv" ),
         ( "video/out/vulkan/context.c",          "vulkan" ),
+        ( "video/out/vulkan/context_android.c",  "vulkan && android" ),
         ( "video/out/vulkan/context_wayland.c",  "vulkan && wayland" ),
         ( "video/out/vulkan/context_win.c",      "vulkan && win32-desktop" ),
         ( "video/out/vulkan/context_xlib.c",     "vulkan && x11" ),
-- 
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