Refactored emulated camera HAL to comply with code style

Change-Id: If57b536ae6b1f9bad4213630488591a3b3cc9fdd

tools/emulator/system/camera/Converters.cpp

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2011 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.
+ */
+
+/*
+ * Contains implemenation of framebuffer conversion routines.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "EmulatedCamera_Converter"
+#include <cutils/log.h>
+#include "Converters.h"
+
+namespace android {
+
+void YV12ToRGB565(const void* yv12, void* rgb, int width, int height)
+{
+    const int pix_total = width * height;
+    uint16_t* rgb_buf = reinterpret_cast<uint16_t*>(rgb);
+    const uint8_t* Y = reinterpret_cast<const uint8_t*>(yv12);
+    const uint8_t* U_pos = Y + pix_total;
+    const uint8_t* V_pos = U_pos + pix_total / 4;
+    const uint8_t* U = U_pos;
+    const uint8_t* V = V_pos;
+
+    for (int y = 0; y < height; y++) {
+        for (int x = 0; x < width; x += 2) {
+            const uint8_t nU = *U; U++;
+            const uint8_t nV = *V; V++;
+            *rgb_buf = YUVToRGB565(*Y, nU, nV);
+            Y++; rgb_buf++;
+            *rgb_buf = YUVToRGB565(*Y, nU, nV);
+            Y++; rgb_buf++;
+        }
+        if (y & 0x1) {
+            U_pos = U;
+            V_pos = V;
+        } else {
+            U = U_pos;
+            V = V_pos;
+        }
+    }
+}
+
+void YV12ToRGB32(const void* yv12, void* rgb, int width, int height)
+{
+    const int pix_total = width * height;
+    uint32_t* rgb_buf = reinterpret_cast<uint32_t*>(rgb);
+    const uint8_t* Y = reinterpret_cast<const uint8_t*>(yv12);
+    const uint8_t* U_pos = Y + pix_total;
+    const uint8_t* V_pos = U_pos + pix_total / 4;
+    const uint8_t* U = U_pos;
+    const uint8_t* V = V_pos;
+
+    for (int y = 0; y < height; y++) {
+        for (int x = 0; x < width; x += 2) {
+            const uint8_t nU = *U; U++;
+            const uint8_t nV = *V; V++;
+            *rgb_buf = YUVToRGB32(*Y, nU, nV);
+            Y++; rgb_buf++;
+            *rgb_buf = YUVToRGB32(*Y, nU, nV);
+            Y++; rgb_buf++;
+        }
+        if (y & 0x1) {
+            U_pos = U;
+            V_pos = V;
+        } else {
+            U = U_pos;
+            V = V_pos;
+        }
+    }
+}
+
+}; /* namespace android */