__drm_lut_to_dc_gamma(9)

💅 __drm_lut_to_dc_gamma — Kernel API Manual core 💖

okay so bestie, buckle up, because this one is a little function from the kernel's graphics side and honestly it's giving "small but crucial" energy ✨. The page you're reading is the __drm_lut_to_dc_gamma(9) manual, and yes we're doing this together, no cap 🫶.

---

✨ NAME ✨

__drm_lut_to_dc_gamma — convert the drm_color_lut to dc_gamma. literally just a glow-up translation gig, and she ate 💅

---

🌸 SYNOPSIS 🌸

void __drm_lut_to_dc_gamma (const struct drm_color_lut *lut , struct
       dc_gamma *gamma , bool is_legacy );

---

🎀 ARGUMENTS 🎀

• lut — the DRM lookup table for color conversion 🔥 like, the source material, the original, the blueprint
• gamma — the DC gamma you're setting entries into 🦋 she's the destination, the main character receiving the data
• is_legacy — legacy or atomic gamma ⭐ this bool is the vibe check that tells everyone which one we're dealing with

---

💜 DESCRIPTION 💜

so the conversion depends on the size of the lut — like, whether or not it's legacy. that's it, that's the whole mood 💀 the table's size is the deciding factor, and is_legacy is along for the ride to make the legacy-versus-atomic situation crystal clear 🙈.

no cap, that's the tea: size of the lut decides how the conversion goes 🍓

---

🌈 SEE ALSO 🌈

okay this is the friend group, and every single one of them is iconic in her own right 👑:

• Kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
• overview(9)
• amdgpu_dm_init_color_mod(9)
• __extract_blob_lut(9)
• __extract_blob_lut32(9)
• __is_lut_linear(9)
• __drm_lut32_to_dc_gamma(9)
• __drm_ctm_to_dc_matrix(9)
• __drm_ctm_3x4_to_dc_matrix(9)
• __set_legacy_tf(9)
• __set_output_tf(9)
• __set_output_tf_32(9)
• __set_input_tf(9)
• __set_input_tf_32(9)
• amdgpu_dm_verify_lut3d_size(9)
• amdgpu_dm_verify_lut_sizes(9)
• amdgpu_dm_check_crtc_color_mgmt(9)
• amdgpu_dm_update_crtc_color_mgmt(9)
• amdgpu_dm_update_plane_color_mgmt(9)

---

💖 okay that's the whole page, you understood it perfectly, I'm so proud of you, fr fr.

and a lil sign-off before you go 🧚: this came from the Kernel API Manual (source page ./drivers/gpu/drm/amd/display/...), dated October 2026, and it's __drm_lut_to_dc_gamma(9) — catch you in the next manpage, bestie, mwah 💋✨