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-rw-r--r--test/ipa/rkisp1/rkisp1-utils.cpp24
1 files changed, 22 insertions, 2 deletions
diff --git a/test/ipa/rkisp1/rkisp1-utils.cpp b/test/ipa/rkisp1/rkisp1-utils.cpp
index e48f8d36..b1863894 100644
--- a/test/ipa/rkisp1/rkisp1-utils.cpp
+++ b/test/ipa/rkisp1/rkisp1-utils.cpp
@@ -21,7 +21,23 @@ using namespace ipa::rkisp1;
class RkISP1UtilsTest : public Test
{
protected:
- template<unsigned int IntPrec, unsigned FracPrec, typename T>
+ /* R for real, I for integer */
+ template<unsigned int IntPrec, unsigned int FracPrec, typename I, typename R>
+ int testFixedToFloat(I input, R expected)
+ {
+ R out = utils::fixedToFloatingPoint<IntPrec, FracPrec, R>(input);
+ R prec = 1.0 / (1 << FracPrec);
+ if (std::abs(out - expected) > prec) {
+ cerr << "Reverse conversion expected " << input
+ << " to convert to " << expected
+ << ", got " << out << std::endl;
+ return TestFail;
+ }
+
+ return TestPass;
+ }
+
+ template<unsigned int IntPrec, unsigned int FracPrec, typename T>
int testSingleFixedPoint(double input, T expected)
{
T ret = utils::floatingToFixedPoint<IntPrec, FracPrec, T>(input);
@@ -54,7 +70,6 @@ protected:
*/
std::map<double, uint16_t> testCases = {
{ 7.992, 0x3ff },
- { 7.992, 0xbff },
{ 0.2, 0x01a },
{ -0.2, 0x7e6 },
{ -0.8, 0x79a },
@@ -72,6 +87,11 @@ protected:
return ret;
}
+ /* Special case with a superfluous one in the unused bits */
+ ret = testFixedToFloat<4, 7, uint16_t, double>(0xbff, 7.992);
+ if (ret != TestPass)
+ return ret;
+
return TestPass;
}