--- /dev/null
+/*
+ * 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 {
+
+static void _YUV420SToRGB565(const uint8_t* Y,
+ const uint8_t* U,
+ const uint8_t* V,
+ int dUV,
+ uint16_t* rgb,
+ int width,
+ int height)
+{
+ const uint8_t* U_pos = U;
+ const uint8_t* V_pos = V;
+
+ for (int y = 0; y < height; y++) {
+ for (int x = 0; x < width; x += 2, U += dUV, V += dUV) {
+ const uint8_t nU = *U;
+ const uint8_t nV = *V;
+ *rgb = YUVToRGB565(*Y, nU, nV);
+ Y++; rgb++;
+ *rgb = YUVToRGB565(*Y, nU, nV);
+ Y++; rgb++;
+ }
+ if (y & 0x1) {
+ U_pos = U;
+ V_pos = V;
+ } else {
+ U = U_pos;
+ V = V_pos;
+ }
+ }
+}
+
+static void _YUV420SToRGB32(const uint8_t* Y,
+ const uint8_t* U,
+ const uint8_t* V,
+ int dUV,
+ uint32_t* rgb,
+ int width,
+ int height)
+{
+ const uint8_t* U_pos = U;
+ const uint8_t* V_pos = V;
+
+ for (int y = 0; y < height; y++) {
+ for (int x = 0; x < width; x += 2, U += dUV, V += dUV) {
+ const uint8_t nU = *U;
+ const uint8_t nV = *V;
+ *rgb = YUVToRGB32(*Y, nU, nV);
+ Y++; rgb++;
+ *rgb = YUVToRGB32(*Y, nU, nV);
+ Y++; rgb++;
+ }
+ if (y & 0x1) {
+ U_pos = U;
+ V_pos = V;
+ } else {
+ U = U_pos;
+ V = V_pos;
+ }
+ }
+}
+
+void YV12ToRGB565(const void* yv12, void* rgb, int width, int height)
+{
+ const int pix_total = width * height;
+ const uint8_t* Y = reinterpret_cast<const uint8_t*>(yv12);
+ const uint8_t* U = Y + pix_total;
+ const uint8_t* V = U + pix_total / 4;
+ _YUV420SToRGB565(Y, U, V, 1, reinterpret_cast<uint16_t*>(rgb), width, height);
+}
+
+void YV12ToRGB32(const void* yv12, void* rgb, int width, int height)
+{
+ const int pix_total = width * height;
+ const uint8_t* Y = reinterpret_cast<const uint8_t*>(yv12);
+ const uint8_t* V = Y + pix_total;
+ const uint8_t* U = V + pix_total / 4;
+ _YUV420SToRGB32(Y, U, V, 1, reinterpret_cast<uint32_t*>(rgb), width, height);
+}
+
+void YU12ToRGB32(const void* yu12, void* rgb, int width, int height)
+{
+ const int pix_total = width * height;
+ const uint8_t* Y = reinterpret_cast<const uint8_t*>(yu12);
+ const uint8_t* U = Y + pix_total;
+ const uint8_t* V = U + pix_total / 4;
+ _YUV420SToRGB32(Y, U, V, 1, reinterpret_cast<uint32_t*>(rgb), width, height);
+}
+
+/* Common converter for YUV 4:2:0 interleaved to RGB565.
+ * y, u, and v point to Y,U, and V panes, where U and V values are interleaved.
+ */
+static void _NVXXToRGB565(const uint8_t* Y,
+ const uint8_t* U,
+ const uint8_t* V,
+ uint16_t* rgb,
+ int width,
+ int height)
+{
+ _YUV420SToRGB565(Y, U, V, 2, rgb, width, height);
+}
+
+/* Common converter for YUV 4:2:0 interleaved to RGB32.
+ * y, u, and v point to Y,U, and V panes, where U and V values are interleaved.
+ */
+static void _NVXXToRGB32(const uint8_t* Y,
+ const uint8_t* U,
+ const uint8_t* V,
+ uint32_t* rgb,
+ int width,
+ int height)
+{
+ _YUV420SToRGB32(Y, U, V, 2, rgb, width, height);
+}
+
+void NV12ToRGB565(const void* nv12, void* rgb, int width, int height)
+{
+ const int pix_total = width * height;
+ const uint8_t* y = reinterpret_cast<const uint8_t*>(nv12);
+ _NVXXToRGB565(y, y + pix_total, y + pix_total + 1,
+ reinterpret_cast<uint16_t*>(rgb), width, height);
+}
+
+void NV12ToRGB32(const void* nv12, void* rgb, int width, int height)
+{
+ const int pix_total = width * height;
+ const uint8_t* y = reinterpret_cast<const uint8_t*>(nv12);
+ _NVXXToRGB32(y, y + pix_total, y + pix_total + 1,
+ reinterpret_cast<uint32_t*>(rgb), width, height);
+}
+
+void NV21ToRGB565(const void* nv21, void* rgb, int width, int height)
+{
+ const int pix_total = width * height;
+ const uint8_t* y = reinterpret_cast<const uint8_t*>(nv21);
+ _NVXXToRGB565(y, y + pix_total + 1, y + pix_total,
+ reinterpret_cast<uint16_t*>(rgb), width, height);
+}
+
+void NV21ToRGB32(const void* nv21, void* rgb, int width, int height)
+{
+ const int pix_total = width * height;
+ const uint8_t* y = reinterpret_cast<const uint8_t*>(nv21);
+ _NVXXToRGB32(y, y + pix_total + 1, y + pix_total,
+ reinterpret_cast<uint32_t*>(rgb), width, height);
+}
+
+}; /* namespace android */