43 lines
1003 B
C++
43 lines
1003 B
C++
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// g++ --std=c++11 test.cpp
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#include "test.h"
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#include "test.h"
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#include "lib8tion/intmap.h"
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#include "fl/lut.h"
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using namespace fl;
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TEST_CASE("LUT interp8") {
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LUT<uint16_t> lut(2);
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uint16_t* data = lut.getDataMutable();
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data[0] = 0;
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data[1] = 255;
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CHECK_EQ(lut.interp8(0), 0);
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CHECK_EQ(lut.interp8(255), 255);
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CHECK_EQ(lut.interp8(128), 128);
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// Check the LUT interpolation for all values.
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for (uint16_t i = 0; i < 256; i++) {
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uint16_t expected = (i * 255) / 255;
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CHECK_EQ(lut.interp8(i), expected);
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}
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}
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TEST_CASE("LUT interp16") {
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LUT<uint16_t> lut(2);
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uint16_t* data = lut.getDataMutable();
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data[0] = 0;
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data[1] = 255;
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CHECK_EQ(lut.interp16(0), 0);
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CHECK_EQ(lut.interp16(0xffff), 255);
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CHECK_EQ(lut.interp16(0xffff / 2), 127);
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// Check the LUT interpolation for all values.
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for (int i = 0; i < 256; i++) {
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uint16_t alpha16 = map8_to_16(i);
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CHECK_EQ(i, lut.interp16(alpha16));
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}
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} |