__drm_ctm_to_dc_matrix(9)

💖 __drm_ctm_to_dc_matrix (9) — Kernel API Manual 💖

okay so bestie, this page is from the Kernel API Manual, and it's all about one tiny but iconic function. no cap.

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🌸 NAME 🌸

__drm_ctm_to_dc_matrix — converts a DRM CTM to a DC CSC float matrix. that's the whole assignment, and it ate. 💅

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💅 SYNOPSIS 💅

void __drm_ctm_to_dc_matrix (const struct drm_color_ctm *ctm , struct
       fixed31_32 *matrix );

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🎀 ARGUMENTS 🎀

• ctm — the DRM color transformation matrix. this is the input, bestie. 🦋
• matrix — the DC CSC float matrix. this is where the converted matrix lands. ✨

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🧚 DESCRIPTION 🧚

so the matrix needs to be a 3x4 (12 entry) matrix. that's 12 entries, periodt. no cap. 💀

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🔥 SEE ALSO 🔥

• 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_lut_to_dc_gamma(9)
• __drm_lut32_to_dc_gamma(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)

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okay that's the page, bestie 🫶 the footer source/version vibe is ./drivers/gpu/drm/amd/display/..., the date is October 2026, and the page is literally __drm_ctm_to_dc_matrix(9). bye 💖