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-rw-r--r--generic/lib/integer/upsample.cl34
1 files changed, 34 insertions, 0 deletions
diff --git a/generic/lib/integer/upsample.cl b/generic/lib/integer/upsample.cl
new file mode 100644
index 0000000..7301cc3
--- /dev/null
+++ b/generic/lib/integer/upsample.cl
@@ -0,0 +1,34 @@
+#include <clc/clc.h>
+
+#define __CLC_UPSAMPLE_IMPL(BGENTYPE, GENTYPE, UGENTYPE, GENSIZE) \
+ _CLC_OVERLOAD _CLC_DECL BGENTYPE upsample(GENTYPE hi, UGENTYPE lo){ \
+ return ((BGENTYPE)hi << GENSIZE) | lo; \
+ } \
+ _CLC_OVERLOAD _CLC_DECL BGENTYPE##2 upsample(GENTYPE##2 hi, UGENTYPE##2 lo){ \
+ return (BGENTYPE##2){upsample(hi.s0, lo.s0), upsample(hi.s1, lo.s1)}; \
+ } \
+ _CLC_OVERLOAD _CLC_DECL BGENTYPE##3 upsample(GENTYPE##3 hi, UGENTYPE##3 lo){ \
+ return (BGENTYPE##3){upsample(hi.s0, lo.s0), upsample(hi.s1, lo.s1), upsample(hi.s2, lo.s2)}; \
+ } \
+ _CLC_OVERLOAD _CLC_DECL BGENTYPE##4 upsample(GENTYPE##4 hi, UGENTYPE##4 lo){ \
+ return (BGENTYPE##4){upsample(hi.lo, lo.lo), upsample(hi.hi, lo.hi)}; \
+ } \
+ _CLC_OVERLOAD _CLC_DECL BGENTYPE##8 upsample(GENTYPE##8 hi, UGENTYPE##8 lo){ \
+ return (BGENTYPE##8){upsample(hi.lo, lo.lo), upsample(hi.hi, lo.hi)}; \
+ } \
+ _CLC_OVERLOAD _CLC_DECL BGENTYPE##16 upsample(GENTYPE##16 hi, UGENTYPE##16 lo){ \
+ return (BGENTYPE##16){upsample(hi.lo, lo.lo), upsample(hi.hi, lo.hi)}; \
+ } \
+
+#define __CLC_UPSAMPLE_TYPES() \
+ __CLC_UPSAMPLE_IMPL(short, char, uchar, 8) \
+ __CLC_UPSAMPLE_IMPL(ushort, uchar, uchar, 8) \
+ __CLC_UPSAMPLE_IMPL(int, short, ushort, 16) \
+ __CLC_UPSAMPLE_IMPL(uint, ushort, ushort, 16) \
+ __CLC_UPSAMPLE_IMPL(long, int, uint, 32) \
+ __CLC_UPSAMPLE_IMPL(ulong, uint, uint, 32) \
+
+__CLC_UPSAMPLE_TYPES()
+
+#undef __CLC_UPSAMPLE_TYPES
+#undef __CLC_UPSAMPLE_IMPL