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-rw-r--r--third_party/jpeg-xl/lib/jxl/cms/jxl_cms_internal.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/cms/jxl_cms_internal.h b/third_party/jpeg-xl/lib/jxl/cms/jxl_cms_internal.h
index 7f59e688d0..a787bd11d8 100644
--- a/third_party/jpeg-xl/lib/jxl/cms/jxl_cms_internal.h
+++ b/third_party/jpeg-xl/lib/jxl/cms/jxl_cms_internal.h
@@ -183,12 +183,12 @@ static Status ToneMapPixel(const JxlColorEncoding& c, const float in[3],
const float f_y = lab_f(xyz[1] / kYn);
const float f_z = lab_f(xyz[2] / kZn);
- pcslab_out[0] =
- static_cast<uint8_t>(.5f + 255.f * Clamp1(1.16f * f_y - .16f, 0.f, 1.f));
+ pcslab_out[0] = static_cast<uint8_t>(
+ std::lroundf(255.f * Clamp1(1.16f * f_y - .16f, 0.f, 1.f)));
pcslab_out[1] = static_cast<uint8_t>(
- .5f + 128.f + Clamp1(500 * (f_x - f_y), -128.f, 127.f));
+ std::lroundf(128.f + Clamp1(500 * (f_x - f_y), -128.f, 127.f)));
pcslab_out[2] = static_cast<uint8_t>(
- .5f + 128.f + Clamp1(200 * (f_y - f_z), -128.f, 127.f));
+ std::lroundf(128.f + Clamp1(200 * (f_y - f_z), -128.f, 127.f)));
return true;
}
@@ -581,7 +581,8 @@ static void CreateICCCurvCurvTag(const std::vector<uint16_t>& curve,
}
// Writes 12 + 4*params.size() bytes
-static Status CreateICCCurvParaTag(std::vector<float> params, size_t curve_type,
+static Status CreateICCCurvParaTag(const std::vector<float>& params,
+ size_t curve_type,
std::vector<uint8_t>* tags) {
WriteICCTag("para", tags->size(), tags);
WriteICCUint32(0, tags->size(), tags);
@@ -637,7 +638,7 @@ static Status CreateICCLutAtoBTagForXYB(std::vector<uint8_t>* tags) {
for (size_t ib = 0; ib < 2; ++ib) {
const jxl::cms::ColorCube0D& out_f = cube[ix][iy][ib];
for (int i = 0; i < 3; ++i) {
- int32_t val = static_cast<int32_t>(0.5f + 65535 * out_f[i]);
+ int32_t val = static_cast<int32_t>(std::lroundf(65535 * out_f[i]));
JXL_DASSERT(val >= 0 && val <= 65535);
WriteICCUint16(val, tags->size(), tags);
}