(Android) Add some initial funtions for setting native window

android/bifrost.c

@@ -161,3 +161,18 @@ JNIEXPORT void JNICALL Java_com_retroarch_rruntime_settings_1set_1defaults
    RARCH_LOG("* rruntime_settings_set_defaults.\n" );
    rarch_settings_set_default();
 }
+
+void gfx_ctx_set_window(JNIEnv *jenv,jobject obj, jobject surface);
+void gfx_ctx_free_window(JNIEnv *jenv,jobject obj, jobject surface);
+
+JNIEXPORT void JNICALL Java_com_retroarch_rruntime_set_window
+   (JNIEnv *env, jclass class, jobject obj, jobject surface)
+{
+   gfx_ctx_set_window(env, obj, surface);
+}
+
+JNIEXPORT void JNICALL Java_com_retroarch_rruntime_free_window
+   (JNIEnv *env, jclass class, jobject obj, jobject surface)
+{
+   gfx_ctx_free_window(env, obj, surface);
+}

android/com_retroarch_rruntime.h

@@ -71,6 +71,22 @@ JNIEXPORT void JNICALL Java_com_retroarch_rruntime_settings_1change
 JNIEXPORT void JNICALL Java_com_retroarch_rruntime_settings_1set_1defaults
   (JNIEnv *, jclass);
 
+/*
+ * Class:     com_retroarch_rruntime
+ * Method:    set_window
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_com_retroarch_rruntime_set_window
+  (JNIEnv *, jclass, jobject, jobject);
+
+/*
+ * Class:     com_retroarch_rruntime
+ * Method:    free_window
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_com_retroarch_rruntime_free_window
+  (JNIEnv *, jclass, jobject, jobject);
+
 #ifdef __cplusplus
 }
 #endif

android/jni/Android.mk

@@ -10,6 +10,6 @@ LOCAL_SRC_FILES    = ../../console/griffin/griffin.c ../../console/rzlib/rzlib.c
 
 LOCAL_CFLAGS = -DPERF_TEST -marm -DANDROID -DHAVE_DYNAMIC -DHAVE_DYLIB -DHAVE_OPENGL -DHAVE_OPENGLES -DHAVE_OPENGLES2 -DHAVE_GLSL -DHAVE_VID_CONTEXT -DHAVE_ZLIB -DHAVE_RARCH_MAIN_WRAP -DINLINE=inline -DRARCH_CONSOLE -DLSB_FIRST -D__LIBRETRO__ -DHAVE_CONFIGFILE=1 -DHAVE_GRIFFIN=1 -DPACKAGE_VERSION=\"$(RARCH_VERSION)\" -Dmain=rarch_main -std=gnu99
 
-LOCAL_LDLIBS	:= -L$(SYSROOT)/usr/lib -landroid -lEGL -lGLESv2 -llog -ldl
+LOCAL_LDLIBS	:= -L$(SYSROOT)/usr/lib -landroid -lEGL -lGLESv2 -llog -ldl -lz
 
 include $(BUILD_SHARED_LIBRARY)

android/res/layout/main.xml

@@ -4,9 +4,14 @@
     android:layout_height="fill_parent"
     android:orientation="vertical" >
 
+<SurfaceView
+    android:id="@+id/surfaceview"
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    />
     <TextView
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:text="@string/hello" />
 
-</LinearLayout>
+</LinearLayout>

android/src/com/retroarch/rruntime.java

@@ -16,6 +16,10 @@
 
 package com.retroarch;
 
+import android.view.Surface;
+import android.view.SurfaceView;
+import android.view.SurfaceHolder;
+
 public class rruntime
 {	
 	static
@@ -43,4 +47,8 @@ public class rruntime
 	public static native void settings_change(final int j_setting);
 
 	public static native void settings_set_defaults();
+	
+	public static native void set_window(SurfaceHolder surface);
+	
+	public static native void free_window(SurfaceHolder surface);
 }

gfx/context/androidegl_ctx.c

@@ -30,7 +30,7 @@ enum RenderThreadMessage {
 
 enum RenderThreadMessage _msg;
    
-ANativeWindow* _window;   /* Requires NDK r5 or newer */
+ANativeWindow *window;   /* Requires NDK r5 or newer */
 
 static EGLContext g_egl_ctx;
 static EGLSurface g_egl_surf;
@@ -134,9 +134,9 @@ static bool gfx_ctx_init(void)
         return false;
     }
 
-    ANativeWindow_setBuffersGeometry(_window, 0, 0, format);
+    ANativeWindow_setBuffersGeometry(window, 0, 0, format);
 
-    if (!(g_egl_surf = eglCreateWindowSurface(g_egl_dpy, config, _window, 0))) {
+    if (!(g_egl_surf = eglCreateWindowSurface(g_egl_dpy, config, window, 0))) {
         RARCH_ERR("eglCreateWindowSurface() returned error %d.\n", eglGetError());
         gfx_ctx_destroy();
         return false;
@@ -233,6 +233,16 @@ static void gfx_ctx_update_window_title(bool reset)
    (void)reset;
 }
 
+void gfx_ctx_set_window(JNIEnv *jenv,jobject obj, jobject surface)
+{
+   window = ANativeWindow_fromSurface(jenv, surface);
+}
+
+void gfx_ctx_free_window(JNIEnv *jenv,jobject obj, jobject surface)
+{
+   ANativeWindow_release(window);
+}
+
 static void gfx_ctx_get_video_size(unsigned *width, unsigned *height)
 {
    (void)width;
@@ -319,6 +329,10 @@ const gfx_ctx_driver_t gfx_ctx_android = {
    NULL,
    gfx_ctx_update_window_title,
    gfx_ctx_check_window,
+#ifdef ANDROID
+   gfx_ctx_set_window,
+   gfx_ctx_free_window,
+#endif
    gfx_ctx_set_resize,
    gfx_ctx_has_focus,
    gfx_ctx_swap_buffers,

gfx/gfx_context.h

@@ -23,6 +23,12 @@
 #include "../config.h"
 #endif
 
+#ifdef ANDROID
+#include <jni.h>
+#include <android/native_window.h> /* Requires NDK r5 or newer */
+#include <android/native_window_jni.h> /* Requires NDK r5 or newer */
+#endif
+
 enum gfx_ctx_api
 {
    GFX_CTX_OPENGL_API,
@@ -63,6 +69,10 @@ typedef struct gfx_ctx_driver
    // Queries for resize and quit events.
    // Also processes events.
    void (*check_window)(bool*, bool*, unsigned*, unsigned*, unsigned);
+#ifdef ANDROID
+   void (*gfx_ctx_set_window)(JNIEnv *jenv,jobject obj, jobject surface);
+   void (*gfx_ctx_free_window)(JNIEnv *jenv,jobject obj, jobject surface);
+#endif
 
    // Acknowledge a resize event. This is needed for some APIs. Most backends will ignore this.
    void (*set_resize)(unsigned, unsigned);