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Install ryg's float -> uint8 sRGB conversion code, which is much faster.

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This commit is contained in:
Jorge Rodriguez
2014-09-16 10:36:19 -07:00
parent 600d80387e
commit cbf5ebbd35
2 changed files with 80 additions and 5 deletions
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4
tests/resample_test.cpp
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@ -259,7 +259,7 @@ void convert_image_float(const unsigned char* input, float* output, int length)
void convert_image_float(const float* input, unsigned char* output, int length)
{
for (int i = 0; i < length; i++)
output[i] = (unsigned char)(input[i] * 255);
output[i] = (unsigned char)(stbir__saturate(input[i]) * 255);
}
void test_float(const char* file, float width_percent, float height_percent, stbir_datatype type, stbir_colorspace colorspace)
@ -857,7 +857,7 @@ void test_suite(int argc, char **argv)
// new tests that hacky fix failed for - test that
// values adjacent to uint8 round to nearest uint8
for (i = 0; i < 256; i++) {
for (float y = -0.49f; y <= 0.491f; y += 0.01f) {
for (float y = -0.42f; y <= 0.42f; y += 0.01f) {
float f = stbir__srgb_to_linear((i+y) / 255.0f);
int n = stbir__linear_to_srgb_uchar(f);
STBIR_ASSERT(n == i);