simple test app for screen capture API

Change-Id: I1f7c453508ccfd4faaa8b1279968a358ce3f1e5a

2 files changed, 89 insertions, 0 deletions

diff --git a/services/surfaceflinger/tests/screencap/Android.mk b/services/surfaceflinger/tests/screencap/Android.mk
new file mode 100644
index 0000000..1cfb471
--- /dev/null
+++ b/services/surfaceflinger/tests/screencap/Android.mk
@@ -0,0 +1,26 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+	screencap.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+	libcutils \
+	libutils \
+	libbinder \
+	libskia \
+    libui \
+    libsurfaceflinger_client
+
+LOCAL_MODULE:= test-screencap
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_C_INCLUDES += \
+	external/skia/include/core \
+	external/skia/include/effects \
+	external/skia/include/images \
+	external/skia/src/ports \
+	external/skia/include/utils
+
+include $(BUILD_EXECUTABLE)
diff --git a/services/surfaceflinger/tests/screencap/screencap.cpp b/services/surfaceflinger/tests/screencap/screencap.cpp
new file mode 100644
index 0000000..9e893f4
--- /dev/null
+++ b/services/surfaceflinger/tests/screencap/screencap.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/Log.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+
+#include <binder/IMemory.h>
+#include <surfaceflinger/ISurfaceComposer.h>
+
+#include <SkImageEncoder.h>
+#include <SkBitmap.h>
+
+using namespace android;
+
+int main(int argc, char** argv)
+{
+    if (argc != 2) {
+        printf("usage: %s path\n", argv[0]);
+        exit(0);
+    }
+
+    const String16 name("SurfaceFlinger");
+    sp<ISurfaceComposer> composer;
+    getService(name, &composer);
+
+    sp<IMemoryHeap> heap;
+    uint32_t w, h;
+    PixelFormat f;
+    status_t err = composer->captureScreen(0, &heap, &w, &h, &f);
+    if (err != NO_ERROR) {
+        fprintf(stderr, "screen capture failed: %s\n", strerror(-err));
+        exit(0);
+    }
+
+    printf("screen capture success: w=%u, h=%u, pixels=%p\n",
+            w, h, heap->getBase());
+
+    printf("saving file as PNG in %s ...\n", argv[1]);
+
+    SkBitmap b;
+    b.setConfig(SkBitmap::kARGB_8888_Config, w, h);
+    b.setPixels(heap->getBase());
+    SkImageEncoder::EncodeFile(argv[1], b,
+            SkImageEncoder::kPNG_Type, SkImageEncoder::kDefaultQuality);
+
+    return 0;
+}