Import goldfish HAL sources from devices/generic/goldfish

We import all code here so we can customize and keep in sync with what
we do on the host side more easily.

android/camera/Converters.cpp

@@ -0,0 +1,173 @@
+/*
+ * 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 */