1 files changed, 273 insertions, 0 deletions
diff --git a/libs/ui/CameraParameters.cpp b/libs/ui/CameraParameters.cpp
new file mode 100644
index 0000000..6c25836
--- /dev/null
+++ b/libs/ui/CameraParameters.cpp
@@ -0,0 +1,273 @@
+/*
+**
+** Copyright 2008, 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.
+*/
+
+#define LOG_TAG "CameraParams"
+#include <utils/Log.h>
+
+#include <string.h>
+#include <stdlib.h>
+#include <ui/CameraParameters.h>
+
+namespace android {
+
+static const char* portrait = "portrait";
+static const char* landscape = "landscape";
+
+CameraParameters::CameraParameters()
+                : mMap()
+{
+}
+
+CameraParameters::~CameraParameters()
+{
+}
+
+String8 CameraParameters::flatten() const
+{
+    String8 flattened("");
+    size_t size = mMap.size();
+
+    for (size_t i = 0; i < size; i++) {
+        String8 k, v;
+        k = mMap.keyAt(i);
+        v = mMap.valueAt(i);
+
+        flattened += k;
+        flattened += "=";
+        flattened += v;
+        if (i != size-1)
+            flattened += ";";
+    }
+
+    return flattened;
+}
+
+void CameraParameters::unflatten(const String8 &params)
+{
+    const char *a = params.string();
+    const char *b;
+
+    mMap.clear();
+
+    for (;;) {
+        // Find the bounds of the key name.
+        b = strchr(a, '=');
+        if (b == 0)
+            break;
+
+        // Create the key string.
+        String8 k(a, (size_t)(b-a));
+
+        // Find the value.
+        a = b+1;
+        b = strchr(a, ';');
+        if (b == 0) {
+            // If there's no semicolon, this is the last item.
+            String8 v(a);
+            mMap.add(k, v);
+            break;
+        }
+
+        String8 v(a, (size_t)(b-a));
+        mMap.add(k, v);
+        a = b+1;
+    }
+}
+
+
+void CameraParameters::set(const char *key, const char *value)
+{
+    // XXX i think i can do this with strspn() 
+    if (strchr(key, '=') || strchr(key, ';')) {
+        //XXX LOGE("Key \"%s\"contains invalid character (= or ;)", key);
+        return;
+    }
+
+    if (strchr(value, '=') || strchr(key, ';')) {
+        //XXX LOGE("Value \"%s\"contains invalid character (= or ;)", value);
+        return;
+    }
+
+    mMap.replaceValueFor(String8(key), String8(value));
+}
+
+void CameraParameters::set(const char *key, int value)
+{
+    char str[16];
+    sprintf(str, "%d", value);
+    set(key, str);
+}
+
+const char *CameraParameters::get(const char *key) const
+{
+    String8 v = mMap.valueFor(String8(key));
+    if (v.length() == 0)
+        return 0;
+    return v.string();
+}
+
+int CameraParameters::getInt(const char *key) const
+{
+    const char *v = get(key);
+    if (v == 0)
+        return -1;
+    return strtol(v, 0, 0);
+}
+
+static int parse_size(const char *str, int &width, int &height)
+{
+    // Find the width.
+    char *end;
+    int w = (int)strtol(str, &end, 10);
+    // If an 'x' does not immediately follow, give up.
+    if (*end != 'x')
+        return -1;
+
+    // Find the height, immediately after the 'x'.
+    int h = (int)strtol(end+1, 0, 10);
+
+    width = w;
+    height = h;
+
+    return 0;
+}
+
+void CameraParameters::setPreviewSize(int width, int height)
+{
+    char str[32];
+    sprintf(str, "%dx%d", width, height);
+    set("preview-size", str);
+}
+
+void CameraParameters::getPreviewSize(int *width, int *height) const
+{
+    *width = -1;
+    *height = -1;
+
+    // Get the current string, if it doesn't exist, leave the -1x-1
+    const char *p = get("preview-size");
+    if (p == 0)
+        return;
+
+    int w, h;
+    if (parse_size(p, w, h) == 0) {
+        *width = w;
+        *height = h;
+    }
+}
+
+void CameraParameters::setPreviewFrameRate(int fps)
+{
+    set("preview-frame-rate", fps);
+}
+
+int CameraParameters::getPreviewFrameRate() const
+{
+    return getInt("preview-frame-rate");
+}
+
+void CameraParameters::setPreviewFormat(const char *format)
+{
+    set("preview-format", format);
+}
+
+int CameraParameters::getOrientation() const
+{
+    const char* orientation = get("orientation");
+    if (orientation && !strcmp(orientation, portrait))
+        return CAMERA_ORIENTATION_PORTRAIT;
+    return CAMERA_ORIENTATION_LANDSCAPE;
+}
+
+void CameraParameters::setOrientation(int orientation)
+{
+    if (orientation == CAMERA_ORIENTATION_PORTRAIT) {
+        set("preview-format", portrait);
+    } else {
+        set("preview-format", landscape);
+    }
+}
+
+const char *CameraParameters::getPreviewFormat() const
+{
+    return get("preview-format");
+}
+
+void CameraParameters::setPictureSize(int width, int height)
+{
+    char str[32];
+    sprintf(str, "%dx%d", width, height);
+    set("picture-size", str);
+}
+
+void CameraParameters::getPictureSize(int *width, int *height) const
+{
+    *width = -1;
+    *height = -1;
+
+    // Get the current string, if it doesn't exist, leave the -1x-1
+    const char *p = get("picture-size");
+    if (p == 0)
+        return;
+
+    int w, h;
+    if (parse_size(p, w, h) == 0) {
+        *width = w;
+        *height = h;
+    }
+}
+
+void CameraParameters::setPictureFormat(const char *format)
+{
+    set("picture-format", format);
+}
+
+const char *CameraParameters::getPictureFormat() const
+{
+    return get("picture-format");
+}
+
+void CameraParameters::dump() const
+{
+    LOGD("dump: mMap.size = %d", mMap.size());
+    for (size_t i = 0; i < mMap.size(); i++) {
+        String8 k, v;
+        k = mMap.keyAt(i);
+        v = mMap.valueAt(i);
+        LOGD("%s: %s\n", k.string(), v.string());
+    }
+}
+
+status_t CameraParameters::dump(int fd, const Vector<String16>& args) const
+{
+    const size_t SIZE = 256;
+    char buffer[SIZE];
+    String8 result;
+    snprintf(buffer, 255, "CameraParameters::dump: mMap.size = %d\n", mMap.size());
+    result.append(buffer);
+    for (size_t i = 0; i < mMap.size(); i++) {
+        String8 k, v;
+        k = mMap.keyAt(i);
+        v = mMap.valueAt(i);
+        snprintf(buffer, 255, "\t%s: %s\n", k.string(), v.string());
+        result.append(buffer);
+    }
+    write(fd, result.string(), result.size());
+    return NO_ERROR;
+}
+
+}; // namespace android