STRUCT MPC_COLOR_CAPS(9)

💖 struct mpc_color_caps(9) 💖

okay bestie, buckle up — this is a Kernel API Manual page and honestly? it's giving "behind the scenes of your screen's colors" energy. no cap.

🌸 NAME 🌸

struct mpc_color_caps — the color pipeline capabilities for multiple pipe and plane combined blocks ✨ (yes, that's a mouthful, we love her anyway)

---

🎀 SYNOPSIS 🎀

struct mpc_color_caps {
    uint16_t gamut_remap : 1;
    uint16_t ogam_ram : 1;
    uint16_t ocsc : 1;
    uint16_t num_3dluts : 3;
    uint16_t num_rmcm_3dluts : 3;
    uint16_t shared_3d_lut:1;
    struct rom_curve_caps ogam_rom_caps;
    struct lut3d_caps mcm_3d_lut_caps;
    struct lut3d_caps rmcm_3d_lut_caps;
    bool preblend;
    struct fixed31_32 max_gamut_remap_coeff;
 };

like, look at her. struct full of bitfields. main character energy fr fr 💅

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🦋 DESCRIPTION (the members) 🦋

so here's the vibe check on every single field, no skips, no shortcuts 👑

• gamut_remap — color transformation matrix. literally the matrix. iconic
• ogam_ram — programmable out gamma LUT 🎨
• ocsc — output color space conversion matrix
• num_3dluts — MPC 3D LUT; always assumes a preceding shaper LUT (do not forget the shaper LUT, bestie, it said always)
• num_rmcm_3dluts — number of RMCM 3D LUTS; also always assumes a preceding shaper LUT 🫶
• shared_3d_lut — shared 3D LUT flag. lowkey important: it can be either DPP or MPC, but only a single instance. one. uno. 💀
• ogam_rom_caps — pre-definied curve caps for regamma 1D LUT (yes, "definied", we're quoting the source, don't come for me 🙈)
• mcm_3d_lut_caps — HW support cap for MCM LUT memory 🧠
• rmcm_3d_lut_caps — HW support cap for RMCM LUT memory
• preblend — whether color manager supports preblend with MPC ✨

also in the struct but not in the members list: max_gamut_remap_coeff, a struct fixed31_32. she's there. she's just quiet. 🎀

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👑 SEE ALSO 👑

the whole friend group, in order, exactly as listed, don't @ me:

• Kernel file ./drivers/gpu/drm/amd/display/dc/dc.h — MAX_SURFACES(9)
• MAX_PLANES(9)
• color-management-caps(9)
• struct rom_curve_caps(9)
• struct dpp_color_caps(9)
• struct dc_color_caps(9)
• enum pipe_split_policy(9)
• dc_check_state_update(9)
• dc_update_state(9)
• dc_update_state_init(9)
• dc_update_state_prepare(9)
• dc_update_state_execute(9)
• dc_update_state_cleanup(9)
• struct dc_probe_latencies(9)
• struct dc_probe_status(9)
• enum dc_get_status_type(9)
• struct dc_get_status_options(9)
• struct dc_state_status(9)
• dc_state_get_status(9)
• struct dc_validation_stream(9)
• struct dc_validation_set(9)
• dc_get_underflow_debug_data_for_otg(9)
• dc_capture_register_software_state(9)
• dc_get_qos_info(9)
• dc_override_memory_bandwidth_request(9)

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that's the whole page, bestie, you ate that 💅

sign-off time 🫶: this little love letter lives at ./drivers/gpu/drm/amd/display/dc, dated October 2026, and it's part of the Kernel API Manual. go read the source, ily, bye 💖✨