1 files changed, 120 insertions, 0 deletions
diff --git a/libs/rs/rsUtils.h b/libs/rs/rsUtils.h
new file mode 100644
index 0000000..5a43fb3
--- /dev/null
+++ b/libs/rs/rsUtils.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef ANDROID_RS_UTILS_H
+#define ANDROID_RS_UTILS_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <stdlib.h>
+
+namespace android {
+namespace renderscript {
+
+#if 1
+#define rsAssert(v) do {if(!(v)) LOGE("rsAssert failed: %s, in %s at %i", #v, __FILE__, __LINE__);} while(0)
+#else
+#define rsAssert(v) while(0)
+#endif
+
+template<typename T>
+T rsMin(T in1, T in2)
+{
+    if (in1 > in2) {
+        return in2;
+    }
+    return in1;
+}
+
+template<typename T>
+T rsMax(T in1, T in2)
+{
+    if (in1 < in2) {
+        return in2;
+    }
+    return in1;
+}
+
+template<typename T>
+T rsFindHighBit(T val)
+{
+    uint32_t bit = 0;
+    while(val > 1) {
+        bit++;
+        val>>=1;
+    }
+    return bit;
+}
+
+template<typename T>
+bool rsIsPow2(T val)
+{
+    return (val & (val-1)) == 0;
+}
+
+template<typename T>
+T rsHigherPow2(T v)
+{
+    if (rsIsPow2(v)) {
+        return v;
+    }
+    return 1 << (rsFindHighBit(v) + 1);
+}
+
+template<typename T>
+T rsLowerPow2(T v)
+{
+    if (rsIsPow2(v)) {
+        return v;
+    }
+    return 1 << rsFindHighBit(v);
+}
+
+
+static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b)
+{
+    uint16_t t = 0;
+    t |= b >> 3;
+    t |= (g >> 2) << 5;
+    t |= (r >> 3) << 11;
+    return t;
+}
+
+static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4)
+{
+    uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f));
+    uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f);
+    uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11));
+    return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11);
+}
+
+static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4)
+{
+    uint32_t r = (i1 & 0xff) +         (i2 & 0xff) +         (i3 & 0xff) +         (i4 & 0xff);
+    uint32_t g = ((i1 >> 8) & 0xff) +  ((i2 >> 8) & 0xff) +  ((i3 >> 8) & 0xff) +  ((i4 >> 8) & 0xff);
+    uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff);
+    uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff);
+    return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24);
+}
+
+
+
+}
+}
+
+#endif //ANDROID_RS_OBJECT_BASE_H
+
+