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path: root/drivers/gpu/drm/i915/display/intel_qp_tables.c
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2023-07-12drm/i915/drm: Fix comment for YCbCr20 qp table declarationSuraj Kandpal
Fix comment for YCbCr420 qp table declaration of max value where the min value is 4 and the max value is 12/15/18 depending on bpc. Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230705051502.2568245-3-suraj.kandpal@intel.com
2023-04-03drm/i915/dsc: Enable YCbCr420 for VDSCSuraj Kandpal
Implementation of VDSC for YCbCr420. Add QP tables for 8,10,12 BPC from rc_tables.h in intel_qp_tables.c (Derived from C-Model, which is given along with DSC1.2a Spec from Vesa) intel_lookup_range_min/max_qp functons need to take into account the output format. Based on that appropriate qp table need to be chosen. Other rc_parameters need to be set where currently values for 444 format is hardcoded in calculate_rc_parameters( ). vdsc_cfg struct needs to be filled with output format information, where these are hardcoded for 444 format. Bspec: 49259 Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Vandita Kulkarni <Vandita.kulkarni@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230309062855.393087-5-suraj.kandpal@intel.com
2022-04-25drm/display: Move DSC header and helpers into display-helper moduleThomas Zimmermann
DSC is the Display Stream Compression standard for DisplayPort. Move the DSC code into display/ and split the header into files for protocol core and DRM helpers. Adapt all users of the code. No functional changes. To avoid the proliferation of Kconfig options, DSC is part of DRM's support for DisplayPort. If necessary, a new option could make DSC an independent feature. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-6-tzimmermann@suse.de
2021-05-19drm/i915/xelpd: Add rc_qp_table for rcparams calculationVandita Kulkarni
Add the qp table for 444 formats, for 8bpc, 10bpc and 12bpc, as given by the VESA C model for DSC 1.1 v2: - Add include guard to header (Jani) - Move the big tables to a .c file (Chris, Jani, Lucas) v3: - Make tables 'static const' and add lookup functions to index into them. (Jani) v3.1: - Include missing .h file. Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210519000625.3184321-3-lucas.demarchi@intel.com