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Linux/include/drm/display/drm_dsc_helper.h

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  1 /* SPDX-License-Identifier: MIT
  2  * Copyright (C) 2018 Intel Corp.
  3  *
  4  * Authors:
  5  * Manasi Navare <manasi.d.navare@intel.com>
  6  */
  7 
  8 #ifndef DRM_DSC_HELPER_H_
  9 #define DRM_DSC_HELPER_H_
 10 
 11 #include <drm/display/drm_dsc.h>
 12 
 13 enum drm_dsc_params_type {
 14         DRM_DSC_1_2_444,
 15         DRM_DSC_1_1_PRE_SCR, /* legacy params from DSC 1.1 */
 16         DRM_DSC_1_2_422,
 17         DRM_DSC_1_2_420,
 18 };
 19 
 20 struct drm_printer;
 21 
 22 void drm_dsc_dp_pps_header_init(struct dp_sdp_header *pps_header);
 23 int drm_dsc_dp_rc_buffer_size(u8 rc_buffer_block_size, u8 rc_buffer_size);
 24 void drm_dsc_pps_payload_pack(struct drm_dsc_picture_parameter_set *pps_sdp,
 25                               const struct drm_dsc_config *dsc_cfg);
 26 void drm_dsc_set_const_params(struct drm_dsc_config *vdsc_cfg);
 27 void drm_dsc_set_rc_buf_thresh(struct drm_dsc_config *vdsc_cfg);
 28 int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg, enum drm_dsc_params_type type);
 29 int drm_dsc_compute_rc_parameters(struct drm_dsc_config *vdsc_cfg);
 30 u8 drm_dsc_initial_scale_value(const struct drm_dsc_config *dsc);
 31 u32 drm_dsc_flatness_det_thresh(const struct drm_dsc_config *dsc);
 32 u32 drm_dsc_get_bpp_int(const struct drm_dsc_config *vdsc_cfg);
 33 void drm_dsc_dump_config(struct drm_printer *p, int indent, const struct drm_dsc_config *cfg);
 34 
 35 #endif /* _DRM_DSC_HELPER_H_ */
 36 
 37 

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