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74c3f5da23
Add a helper to dump the Display Stream Compression configuration, taken into use in the i915 driver by a later patch. v2: - Rebase on the s/DRM_X16/FXP_Q4 change. - s/DSC configration/DSC configuration in the function documentation. Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240628164451.1177612-3-imre.deak@intel.com
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/* SPDX-License-Identifier: MIT
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* Copyright (C) 2018 Intel Corp.
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*
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* Authors:
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* Manasi Navare <manasi.d.navare@intel.com>
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*/
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#ifndef DRM_DSC_HELPER_H_
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#define DRM_DSC_HELPER_H_
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#include <drm/display/drm_dsc.h>
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enum drm_dsc_params_type {
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DRM_DSC_1_2_444,
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DRM_DSC_1_1_PRE_SCR, /* legacy params from DSC 1.1 */
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DRM_DSC_1_2_422,
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DRM_DSC_1_2_420,
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};
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struct drm_printer;
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void drm_dsc_dp_pps_header_init(struct dp_sdp_header *pps_header);
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int drm_dsc_dp_rc_buffer_size(u8 rc_buffer_block_size, u8 rc_buffer_size);
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void drm_dsc_pps_payload_pack(struct drm_dsc_picture_parameter_set *pps_sdp,
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const struct drm_dsc_config *dsc_cfg);
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void drm_dsc_set_const_params(struct drm_dsc_config *vdsc_cfg);
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void drm_dsc_set_rc_buf_thresh(struct drm_dsc_config *vdsc_cfg);
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int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg, enum drm_dsc_params_type type);
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int drm_dsc_compute_rc_parameters(struct drm_dsc_config *vdsc_cfg);
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u8 drm_dsc_initial_scale_value(const struct drm_dsc_config *dsc);
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u32 drm_dsc_flatness_det_thresh(const struct drm_dsc_config *dsc);
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u32 drm_dsc_get_bpp_int(const struct drm_dsc_config *vdsc_cfg);
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void drm_dsc_dump_config(struct drm_printer *p, int indent, const struct drm_dsc_config *cfg);
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#endif /* _DRM_DSC_HELPER_H_ */
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