cm: follow preferred srgb eotf for screencopy (#12230)

1 files changed, 3 insertions, 1 deletions

diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index 02da142f..baf69b96 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -1711,7 +1711,9 @@ void CHyprOpenGLImpl::renderTextureInternal(SP<CTexture> tex, const CBox& box, c
             // revert luma changes to avoid black screenshots.
             // this will likely not be 1:1, and might cause screenshots to be too bright, but it's better than pitch black.
             imageDescription.luminances = {};
-            passCMUniforms(*shader, imageDescription, NColorManagement::SImageDescription{}, true, -1, -1);
+            static auto PSDREOTF        = CConfigValue<Hyprlang::INT>("render:cm_sdr_eotf");
+            auto        chosenSdrEotf   = *PSDREOTF > 0 ? NColorManagement::CM_TRANSFER_FUNCTION_GAMMA22 : NColorManagement::CM_TRANSFER_FUNCTION_SRGB;
+            passCMUniforms(*shader, imageDescription, NColorManagement::SImageDescription{.transferFunction = chosenSdrEotf}, true, -1, -1);
         } else
             passCMUniforms(*shader, imageDescription);
     }