More changes to fix PDK build:

move screencap back to frameworks/base
move libdiskusage to frameworks/native

Change-Id: I8abe425c4bbf305bbe8650094c40c16df8c6d5e4

2 files changed, 221 insertions, 0 deletions

diff --git a/cmds/screencap/Android.mk b/cmds/screencap/Android.mk
new file mode 100644
index 0000000..ca8008b
--- /dev/null
+++ b/cmds/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 \
+    libgui
+
+LOCAL_MODULE:= screencap
+
+LOCAL_MODULE_TAGS := optional
+
+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/cmds/screencap/screencap.cpp b/cmds/screencap/screencap.cpp
new file mode 100644
index 0000000..a1ea81a
--- /dev/null
+++ b/cmds/screencap/screencap.cpp
@@ -0,0 +1,195 @@
+/*
+ * 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 <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+#include <linux/fb.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+
+#include <binder/IMemory.h>
+#include <gui/SurfaceComposerClient.h>
+#include <gui/ISurfaceComposer.h>
+
+#include <SkImageEncoder.h>
+#include <SkBitmap.h>
+#include <SkData.h>
+#include <SkStream.h>
+
+using namespace android;
+
+static uint32_t DEFAULT_DISPLAY_ID = ISurfaceComposer::eDisplayIdMain;
+
+static void usage(const char* pname)
+{
+    fprintf(stderr,
+            "usage: %s [-hp] [-d display-id] [FILENAME]\n"
+            "   -h: this message\n"
+            "   -p: save the file as a png.\n"
+            "   -d: specify the display id to capture, default %d.\n"
+            "If FILENAME ends with .png it will be saved as a png.\n"
+            "If FILENAME is not given, the results will be printed to stdout.\n",
+            pname, DEFAULT_DISPLAY_ID
+    );
+}
+
+static SkBitmap::Config flinger2skia(PixelFormat f)
+{
+    switch (f) {
+        case PIXEL_FORMAT_A_8:
+            return SkBitmap::kA8_Config;
+        case PIXEL_FORMAT_RGB_565:
+            return SkBitmap::kRGB_565_Config;
+        case PIXEL_FORMAT_RGBA_4444:
+            return SkBitmap::kARGB_4444_Config;
+        default:
+            return SkBitmap::kARGB_8888_Config;
+    }
+}
+
+static status_t vinfoToPixelFormat(const fb_var_screeninfo& vinfo,
+        uint32_t* bytespp, uint32_t* f)
+{
+
+    switch (vinfo.bits_per_pixel) {
+        case 16:
+            *f = PIXEL_FORMAT_RGB_565;
+            *bytespp = 2;
+            break;
+        case 24:
+            *f = PIXEL_FORMAT_RGB_888;
+            *bytespp = 3;
+            break;
+        case 32:
+            // TODO: do better decoding of vinfo here
+            *f = PIXEL_FORMAT_RGBX_8888;
+            *bytespp = 4;
+            break;
+        default:
+            return BAD_VALUE;
+    }
+    return NO_ERROR;
+}
+
+int main(int argc, char** argv)
+{
+    const char* pname = argv[0];
+    bool png = false;
+    int32_t displayId = DEFAULT_DISPLAY_ID;
+    int c;
+    while ((c = getopt(argc, argv, "phd:")) != -1) {
+        switch (c) {
+            case 'p':
+                png = true;
+                break;
+            case 'd':
+                displayId = atoi(optarg);
+                break;
+            case '?':
+            case 'h':
+                usage(pname);
+                return 1;
+        }
+    }
+    argc -= optind;
+    argv += optind;
+
+    int fd = -1;
+    if (argc == 0) {
+        fd = dup(STDOUT_FILENO);
+    } else if (argc == 1) {
+        const char* fn = argv[0];
+        fd = open(fn, O_WRONLY | O_CREAT | O_TRUNC, 0664);
+        if (fd == -1) {
+            fprintf(stderr, "Error opening file: %s (%s)\n", fn, strerror(errno));
+            return 1;
+        }
+        const int len = strlen(fn);
+        if (len >= 4 && 0 == strcmp(fn+len-4, ".png")) {
+            png = true;
+        }
+    }
+    
+    if (fd == -1) {
+        usage(pname);
+        return 1;
+    }
+
+    void const* mapbase = MAP_FAILED;
+    ssize_t mapsize = -1;
+
+    void const* base = 0;
+    uint32_t w, h, f;
+    size_t size = 0;
+
+    ScreenshotClient screenshot;
+    sp<IBinder> display = SurfaceComposerClient::getBuiltInDisplay(displayId);
+    if (display != NULL && screenshot.update(display) == NO_ERROR) {
+        base = screenshot.getPixels();
+        w = screenshot.getWidth();
+        h = screenshot.getHeight();
+        f = screenshot.getFormat();
+        size = screenshot.getSize();
+    } else {
+        const char* fbpath = "/dev/graphics/fb0";
+        int fb = open(fbpath, O_RDONLY);
+        if (fb >= 0) {
+            struct fb_var_screeninfo vinfo;
+            if (ioctl(fb, FBIOGET_VSCREENINFO, &vinfo) == 0) {
+                uint32_t bytespp;
+                if (vinfoToPixelFormat(vinfo, &bytespp, &f) == NO_ERROR) {
+                    size_t offset = (vinfo.xoffset + vinfo.yoffset*vinfo.xres) * bytespp;
+                    w = vinfo.xres;
+                    h = vinfo.yres;
+                    size = w*h*bytespp;
+                    mapsize = offset + size;
+                    mapbase = mmap(0, mapsize, PROT_READ, MAP_PRIVATE, fb, 0);
+                    if (mapbase != MAP_FAILED) {
+                        base = (void const *)((char const *)mapbase + offset);
+                    }
+                }
+            }
+            close(fb);
+        }
+    }
+
+    if (base) {
+        if (png) {
+            SkBitmap b;
+            b.setConfig(flinger2skia(f), w, h);
+            b.setPixels((void*)base);
+            SkDynamicMemoryWStream stream;
+            SkImageEncoder::EncodeStream(&stream, b,
+                    SkImageEncoder::kPNG_Type, SkImageEncoder::kDefaultQuality);
+            SkData* streamData = stream.copyToData();
+            write(fd, streamData->data(), streamData->size());
+            streamData->unref();
+        } else {
+            write(fd, &w, 4);
+            write(fd, &h, 4);
+            write(fd, &f, 4);
+            write(fd, base, size);
+        }
+    }
+    close(fd);
+    if (mapbase != MAP_FAILED) {
+        munmap((void *)mapbase, mapsize);
+    }
+    return 0;
+}