| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Dmitry Eremin-Solenikov | 12295 | 82.74% | 7 | 29.17% |
| Gaurav K Singh | 1173 | 7.89% | 2 | 8.33% |
| Manasi D Navare | 654 | 4.40% | 2 | 8.33% |
| David Francis | 578 | 3.89% | 3 | 12.50% |
| Jessica Zhang | 79 | 0.53% | 2 | 8.33% |
| Jani Nikula | 75 | 0.50% | 4 | 16.67% |
| Thomas Zimmermann | 3 | 0.02% | 2 | 8.33% |
| Ville Syrjälä | 2 | 0.01% | 1 | 4.17% |
| caihuoqing | 1 | 0.01% | 1 | 4.17% |
| Total | 14860 | 24 |
// SPDX-License-Identifier: MIT /* * Copyright © 2018 Intel Corp * * Author: * Manasi Navare <manasi.d.navare@intel.com> */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/byteorder/generic.h> #include <drm/display/drm_dp_helper.h> #include <drm/display/drm_dsc_helper.h> #include <drm/drm_print.h> /** * DOC: dsc helpers * * VESA specification for DP 1.4 adds a new feature called Display Stream * Compression (DSC) used to compress the pixel bits before sending it on * DP/eDP/MIPI DSI interface. DSC is required to be enabled so that the existing * display interfaces can support high resolutions at higher frames rates uisng * the maximum available link capacity of these interfaces. * * These functions contain some common logic and helpers to deal with VESA * Display Stream Compression standard required for DSC on Display Port/eDP or * MIPI display interfaces. */ /** * drm_dsc_dp_pps_header_init() - Initializes the PPS Header * for DisplayPort as per the DP 1.4 spec. * @pps_header: Secondary data packet header for DSC Picture * Parameter Set as defined in &struct dp_sdp_header * * DP 1.4 spec defines the secondary data packet for sending the * picture parameter infoframes from the source to the sink. * This function populates the SDP header defined in * &struct dp_sdp_header. */ void drm_dsc_dp_pps_header_init(struct dp_sdp_header *pps_header) { memset(pps_header, 0, sizeof(*pps_header)); pps_header->HB1 = DP_SDP_PPS; pps_header->HB2 = DP_SDP_PPS_HEADER_PAYLOAD_BYTES_MINUS_1; } EXPORT_SYMBOL(drm_dsc_dp_pps_header_init); /** * drm_dsc_dp_rc_buffer_size - get rc buffer size in bytes * @rc_buffer_block_size: block size code, according to DPCD offset 62h * @rc_buffer_size: number of blocks - 1, according to DPCD offset 63h * * return: * buffer size in bytes, or 0 on invalid input */ int drm_dsc_dp_rc_buffer_size(u8 rc_buffer_block_size, u8 rc_buffer_size) { int size = 1024 * (rc_buffer_size + 1); switch (rc_buffer_block_size) { case DP_DSC_RC_BUF_BLK_SIZE_1: return 1 * size; case DP_DSC_RC_BUF_BLK_SIZE_4: return 4 * size; case DP_DSC_RC_BUF_BLK_SIZE_16: return 16 * size; case DP_DSC_RC_BUF_BLK_SIZE_64: return 64 * size; default: return 0; } } EXPORT_SYMBOL(drm_dsc_dp_rc_buffer_size); /** * drm_dsc_pps_payload_pack() - Populates the DSC PPS * * @pps_payload: * Bitwise struct for DSC Picture Parameter Set. This is defined * by &struct drm_dsc_picture_parameter_set * @dsc_cfg: * DSC Configuration data filled by driver as defined by * &struct drm_dsc_config * * DSC source device sends a picture parameter set (PPS) containing the * information required by the sink to decode the compressed frame. Driver * populates the DSC PPS struct using the DSC configuration parameters in * the order expected by the DSC Display Sink device. For the DSC, the sink * device expects the PPS payload in big endian format for fields * that span more than 1 byte. */ void drm_dsc_pps_payload_pack(struct drm_dsc_picture_parameter_set *pps_payload, const struct drm_dsc_config *dsc_cfg) { int i; /* Protect against someone accidentally changing struct size */ BUILD_BUG_ON(sizeof(*pps_payload) != DP_SDP_PPS_HEADER_PAYLOAD_BYTES_MINUS_1 + 1); memset(pps_payload, 0, sizeof(*pps_payload)); /* PPS 0 */ pps_payload->dsc_version = dsc_cfg->dsc_version_minor | dsc_cfg->dsc_version_major << DSC_PPS_VERSION_MAJOR_SHIFT; /* PPS 1, 2 is 0 */ /* PPS 3 */ pps_payload->pps_3 = dsc_cfg->line_buf_depth | dsc_cfg->bits_per_component << DSC_PPS_BPC_SHIFT; /* PPS 4 */ pps_payload->pps_4 = ((dsc_cfg->bits_per_pixel & DSC_PPS_BPP_HIGH_MASK) >> DSC_PPS_MSB_SHIFT) | dsc_cfg->vbr_enable << DSC_PPS_VBR_EN_SHIFT | dsc_cfg->simple_422 << DSC_PPS_SIMPLE422_SHIFT | dsc_cfg->convert_rgb << DSC_PPS_CONVERT_RGB_SHIFT | dsc_cfg->block_pred_enable << DSC_PPS_BLOCK_PRED_EN_SHIFT; /* PPS 5 */ pps_payload->bits_per_pixel_low = (dsc_cfg->bits_per_pixel & DSC_PPS_LSB_MASK); /* * The DSC panel expects the PPS packet to have big endian format * for data spanning 2 bytes. Use a macro cpu_to_be16() to convert * to big endian format. If format is little endian, it will swap * bytes to convert to Big endian else keep it unchanged. */ /* PPS 6, 7 */ pps_payload->pic_height = cpu_to_be16(dsc_cfg->pic_height); /* PPS 8, 9 */ pps_payload->pic_width = cpu_to_be16(dsc_cfg->pic_width); /* PPS 10, 11 */ pps_payload->slice_height = cpu_to_be16(dsc_cfg->slice_height); /* PPS 12, 13 */ pps_payload->slice_width = cpu_to_be16(dsc_cfg->slice_width); /* PPS 14, 15 */ pps_payload->chunk_size = cpu_to_be16(dsc_cfg->slice_chunk_size); /* PPS 16 */ pps_payload->initial_xmit_delay_high = ((dsc_cfg->initial_xmit_delay & DSC_PPS_INIT_XMIT_DELAY_HIGH_MASK) >> DSC_PPS_MSB_SHIFT); /* PPS 17 */ pps_payload->initial_xmit_delay_low = (dsc_cfg->initial_xmit_delay & DSC_PPS_LSB_MASK); /* PPS 18, 19 */ pps_payload->initial_dec_delay = cpu_to_be16(dsc_cfg->initial_dec_delay); /* PPS 20 is 0 */ /* PPS 21 */ pps_payload->initial_scale_value = dsc_cfg->initial_scale_value; /* PPS 22, 23 */ pps_payload->scale_increment_interval = cpu_to_be16(dsc_cfg->scale_increment_interval); /* PPS 24 */ pps_payload->scale_decrement_interval_high = ((dsc_cfg->scale_decrement_interval & DSC_PPS_SCALE_DEC_INT_HIGH_MASK) >> DSC_PPS_MSB_SHIFT); /* PPS 25 */ pps_payload->scale_decrement_interval_low = (dsc_cfg->scale_decrement_interval & DSC_PPS_LSB_MASK); /* PPS 26[7:0], PPS 27[7:5] RESERVED */ /* PPS 27 */ pps_payload->first_line_bpg_offset = dsc_cfg->first_line_bpg_offset; /* PPS 28, 29 */ pps_payload->nfl_bpg_offset = cpu_to_be16(dsc_cfg->nfl_bpg_offset); /* PPS 30, 31 */ pps_payload->slice_bpg_offset = cpu_to_be16(dsc_cfg->slice_bpg_offset); /* PPS 32, 33 */ pps_payload->initial_offset = cpu_to_be16(dsc_cfg->initial_offset); /* PPS 34, 35 */ pps_payload->final_offset = cpu_to_be16(dsc_cfg->final_offset); /* PPS 36 */ pps_payload->flatness_min_qp = dsc_cfg->flatness_min_qp; /* PPS 37 */ pps_payload->flatness_max_qp = dsc_cfg->flatness_max_qp; /* PPS 38, 39 */ pps_payload->rc_model_size = cpu_to_be16(dsc_cfg->rc_model_size); /* PPS 40 */ pps_payload->rc_edge_factor = DSC_RC_EDGE_FACTOR_CONST; /* PPS 41 */ pps_payload->rc_quant_incr_limit0 = dsc_cfg->rc_quant_incr_limit0; /* PPS 42 */ pps_payload->rc_quant_incr_limit1 = dsc_cfg->rc_quant_incr_limit1; /* PPS 43 */ pps_payload->rc_tgt_offset = DSC_RC_TGT_OFFSET_LO_CONST | DSC_RC_TGT_OFFSET_HI_CONST << DSC_PPS_RC_TGT_OFFSET_HI_SHIFT; /* PPS 44 - 57 */ for (i = 0; i < DSC_NUM_BUF_RANGES - 1; i++) pps_payload->rc_buf_thresh[i] = dsc_cfg->rc_buf_thresh[i]; /* PPS 58 - 87 */ /* * For DSC sink programming the RC Range parameter fields * are as follows: Min_qp[15:11], max_qp[10:6], offset[5:0] */ for (i = 0; i < DSC_NUM_BUF_RANGES; i++) { pps_payload->rc_range_parameters[i] = cpu_to_be16((dsc_cfg->rc_range_params[i].range_min_qp << DSC_PPS_RC_RANGE_MINQP_SHIFT) | (dsc_cfg->rc_range_params[i].range_max_qp << DSC_PPS_RC_RANGE_MAXQP_SHIFT) | (dsc_cfg->rc_range_params[i].range_bpg_offset)); } /* PPS 88 */ pps_payload->native_422_420 = dsc_cfg->native_422 | dsc_cfg->native_420 << DSC_PPS_NATIVE_420_SHIFT; /* PPS 89 */ pps_payload->second_line_bpg_offset = dsc_cfg->second_line_bpg_offset; /* PPS 90, 91 */ pps_payload->nsl_bpg_offset = cpu_to_be16(dsc_cfg->nsl_bpg_offset); /* PPS 92, 93 */ pps_payload->second_line_offset_adj = cpu_to_be16(dsc_cfg->second_line_offset_adj); /* PPS 94 - 127 are O */ } EXPORT_SYMBOL(drm_dsc_pps_payload_pack); /** * drm_dsc_set_const_params() - Set DSC parameters considered typically * constant across operation modes * * @vdsc_cfg: * DSC Configuration data partially filled by driver */ void drm_dsc_set_const_params(struct drm_dsc_config *vdsc_cfg) { if (!vdsc_cfg->rc_model_size) vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST; vdsc_cfg->rc_edge_factor = DSC_RC_EDGE_FACTOR_CONST; vdsc_cfg->rc_tgt_offset_high = DSC_RC_TGT_OFFSET_HI_CONST; vdsc_cfg->rc_tgt_offset_low = DSC_RC_TGT_OFFSET_LO_CONST; if (vdsc_cfg->bits_per_component <= 10) vdsc_cfg->mux_word_size = DSC_MUX_WORD_SIZE_8_10_BPC; else vdsc_cfg->mux_word_size = DSC_MUX_WORD_SIZE_12_BPC; } EXPORT_SYMBOL(drm_dsc_set_const_params); /* From DSC_v1.11 spec, rc_parameter_Set syntax element typically constant */ static const u16 drm_dsc_rc_buf_thresh[] = { 896, 1792, 2688, 3584, 4480, 5376, 6272, 6720, 7168, 7616, 7744, 7872, 8000, 8064 }; /** * drm_dsc_set_rc_buf_thresh() - Set thresholds for the RC model * in accordance with the DSC 1.2 specification. * * @vdsc_cfg: DSC Configuration data partially filled by driver */ void drm_dsc_set_rc_buf_thresh(struct drm_dsc_config *vdsc_cfg) { int i; BUILD_BUG_ON(ARRAY_SIZE(drm_dsc_rc_buf_thresh) != DSC_NUM_BUF_RANGES - 1); BUILD_BUG_ON(ARRAY_SIZE(drm_dsc_rc_buf_thresh) != ARRAY_SIZE(vdsc_cfg->rc_buf_thresh)); for (i = 0; i < ARRAY_SIZE(drm_dsc_rc_buf_thresh); i++) vdsc_cfg->rc_buf_thresh[i] = drm_dsc_rc_buf_thresh[i] >> 6; /* * For 6bpp, RC Buffer threshold 12 and 13 need a different value * as per C Model */ if (vdsc_cfg->bits_per_pixel == 6 << 4) { vdsc_cfg->rc_buf_thresh[12] = 7936 >> 6; vdsc_cfg->rc_buf_thresh[13] = 8000 >> 6; } } EXPORT_SYMBOL(drm_dsc_set_rc_buf_thresh); struct rc_parameters { u16 initial_xmit_delay; u8 first_line_bpg_offset; u16 initial_offset; u8 flatness_min_qp; u8 flatness_max_qp; u8 rc_quant_incr_limit0; u8 rc_quant_incr_limit1; struct drm_dsc_rc_range_parameters rc_range_params[DSC_NUM_BUF_RANGES]; }; struct rc_parameters_data { u8 bpp; u8 bpc; struct rc_parameters params; }; #define DSC_BPP(bpp) ((bpp) << 4) /* * Rate Control Related Parameter Recommended Values from DSC_v1.1 spec prior * to DSC 1.1 fractional bpp underflow SCR (DSC_v1.1_E1.pdf) * * Cross-checked against C Model releases: DSC_model_20161212 and 20210623 */ static const struct rc_parameters_data rc_parameters_pre_scr[] = { { .bpp = DSC_BPP(6), .bpc = 8, { 683, 15, 6144, 3, 13, 11, 11, { { 0, 2, 0 }, { 1, 4, -2 }, { 3, 6, -2 }, { 4, 6, -4 }, { 5, 7, -6 }, { 5, 7, -6 }, { 6, 7, -6 }, { 6, 8, -8 }, { 7, 9, -8 }, { 8, 10, -10 }, { 9, 11, -10 }, { 10, 12, -12 }, { 10, 13, -12 }, { 12, 14, -12 }, { 15, 15, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 8, { 512, 12, 6144, 3, 12, 11, 11, { { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 }, { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 10, { 512, 12, 6144, 7, 16, 15, 15, { /* * DSC model/pre-SCR-cfg has 8 for range_max_qp[0], however * VESA DSC 1.1 Table E-5 sets it to 4. */ { 0, 4, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 12, { 512, 12, 6144, 11, 20, 19, 19, { { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 }, { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 }, { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 }, { 21, 23, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 8, { 410, 12, 5632, 3, 12, 11, 11, { { 0, 3, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 2, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 9, -10 }, { 5, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 }, { 7, 13, -12 }, { 13, 15, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 10, { 410, 12, 5632, 7, 16, 15, 15, { { 0, 7, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 6, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 13, -10 }, { 9, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, { 11, 17, -12 }, { 17, 19, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 12, { 410, 12, 5632, 11, 20, 19, 19, { { 0, 11, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 10, 14, -2 }, { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 17, -10 }, { 13, 18, -10 }, { 13, 19, -10 }, { 13, 20, -12 }, { 15, 21, -12 }, { 21, 23, -12 } } } }, { .bpp = DSC_BPP(12), .bpc = 8, { 341, 15, 2048, 3, 12, 11, 11, { { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 }, { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 } } } }, { .bpp = DSC_BPP(12), .bpc = 10, { 341, 15, 2048, 7, 16, 15, 15, { { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 }, { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 } } } }, { .bpp = DSC_BPP(12), .bpc = 12, { 341, 15, 2048, 11, 20, 19, 19, { { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 }, { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 }, { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 }, { 21, 23, -12 } } } }, { .bpp = DSC_BPP(15), .bpc = 8, { 273, 15, 2048, 3, 12, 11, 11, { { 0, 0, 10 }, { 0, 1, 8 }, { 0, 1, 6 }, { 0, 2, 4 }, { 1, 2, 2 }, { 1, 3, 0 }, { 1, 4, -2 }, { 2, 4, -4 }, { 3, 4, -6 }, { 3, 5, -8 }, { 4, 6, -10 }, { 5, 7, -10 }, { 5, 8, -12 }, { 7, 13, -12 }, { 13, 15, -12 } } } }, { .bpp = DSC_BPP(15), .bpc = 10, { 273, 15, 2048, 7, 16, 15, 15, { { 0, 2, 10 }, { 2, 5, 8 }, { 3, 5, 6 }, { 4, 6, 4 }, { 5, 6, 2 }, { 5, 7, 0 }, { 5, 8, -2 }, { 6, 8, -4 }, { 7, 8, -6 }, { 7, 9, -8 }, { 8, 10, -10 }, { 9, 11, -10 }, { 9, 12, -12 }, { 11, 17, -12 }, { 17, 19, -12 } } } }, { .bpp = DSC_BPP(15), .bpc = 12, { 273, 15, 2048, 11, 20, 19, 19, { { 0, 4, 10 }, { 2, 7, 8 }, { 4, 9, 6 }, { 6, 11, 4 }, { 9, 11, 2 }, { 9, 11, 0 }, { 9, 12, -2 }, { 10, 12, -4 }, { 11, 12, -6 }, { 11, 13, -8 }, { 12, 14, -10 }, { 13, 15, -10 }, { 13, 16, -12 }, { 15, 21, -12 }, { 21, 23, -12 } } } }, { /* sentinel */ } }; /* * Selected Rate Control Related Parameter Recommended Values from DSC v1.2, v1.2a, v1.2b and * DSC_v1.1_E1 specs. * * Cross-checked against C Model releases: DSC_model_20161212 and 20210623 */ static const struct rc_parameters_data rc_parameters_1_2_444[] = { { .bpp = DSC_BPP(6), .bpc = 8, { 768, 15, 6144, 3, 13, 11, 11, { { 0, 4, 0 }, { 1, 6, -2 }, { 3, 8, -2 }, { 4, 8, -4 }, { 5, 9, -6 }, { 5, 9, -6 }, { 6, 9, -6 }, { 6, 10, -8 }, { 7, 11, -8 }, { 8, 12, -10 }, { 9, 12, -10 }, { 10, 12, -12 }, { 10, 12, -12 }, { 11, 12, -12 }, { 13, 14, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 10, { 768, 15, 6144, 7, 17, 15, 15, { { 0, 8, 0 }, { 3, 10, -2 }, { 7, 12, -2 }, { 8, 12, -4 }, { 9, 13, -6 }, { 9, 13, -6 }, { 10, 13, -6 }, { 10, 14, -8 }, { 11, 15, -8 }, { 12, 16, -10 }, { 13, 16, -10 }, { 14, 16, -12 }, { 14, 16, -12 }, { 15, 16, -12 }, { 17, 18, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 12, { 768, 15, 6144, 11, 21, 19, 19, { { 0, 12, 0 }, { 5, 14, -2 }, { 11, 16, -2 }, { 12, 16, -4 }, { 13, 17, -6 }, { 13, 17, -6 }, { 14, 17, -6 }, { 14, 18, -8 }, { 15, 19, -8 }, { 16, 20, -10 }, { 17, 20, -10 }, { 18, 20, -12 }, { 18, 20, -12 }, { 19, 20, -12 }, { 21, 22, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 14, { 768, 15, 6144, 15, 25, 23, 23, { { 0, 16, 0 }, { 7, 18, -2 }, { 15, 20, -2 }, { 16, 20, -4 }, { 17, 21, -6 }, { 17, 21, -6 }, { 18, 21, -6 }, { 18, 22, -8 }, { 19, 23, -8 }, { 20, 24, -10 }, { 21, 24, -10 }, { 22, 24, -12 }, { 22, 24, -12 }, { 23, 24, -12 }, { 25, 26, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 16, { 768, 15, 6144, 19, 29, 27, 27, { { 0, 20, 0 }, { 9, 22, -2 }, { 19, 24, -2 }, { 20, 24, -4 }, { 21, 25, -6 }, { 21, 25, -6 }, { 22, 25, -6 }, { 22, 26, -8 }, { 23, 27, -8 }, { 24, 28, -10 }, { 25, 28, -10 }, { 26, 28, -12 }, { 26, 28, -12 }, { 27, 28, -12 }, { 29, 30, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 8, { 512, 12, 6144, 3, 12, 11, 11, { { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 10, -10 }, { 5, 10, -10 }, { 5, 11, -12 }, { 5, 11, -12 }, { 9, 12, -12 }, { 12, 13, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 10, { 512, 12, 6144, 7, 16, 15, 15, { { 0, 8, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 14, -10 }, { 9, 14, -10 }, { 9, 15, -12 }, { 9, 15, -12 }, { 13, 16, -12 }, { 16, 17, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 12, { 512, 12, 6144, 11, 20, 19, 19, { { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 }, { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 18, -10 }, { 13, 18, -10 }, { 13, 19, -12 }, { 13, 19, -12 }, { 17, 20, -12 }, { 20, 21, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 14, { 512, 12, 6144, 15, 24, 23, 23, { { 0, 12, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 }, { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 21, -8 }, { 15, 22, -10 }, { 17, 22, -10 }, { 17, 23, -12 }, { 17, 23, -12 }, { 21, 24, -12 }, { 24, 25, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 16, { 512, 12, 6144, 19, 28, 27, 27, { { 0, 12, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 15, 20, -2 }, { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 25, -8 }, { 19, 26, -10 }, { 21, 26, -10 }, { 21, 27, -12 }, { 21, 27, -12 }, { 25, 28, -12 }, { 28, 29, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 8, { 410, 15, 5632, 3, 12, 11, 11, { { 0, 3, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 2, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 9, -10 }, { 5, 10, -10 }, { 5, 10, -10 }, { 5, 11, -12 }, { 7, 11, -12 }, { 11, 12, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 10, { 410, 15, 5632, 7, 16, 15, 15, { { 0, 7, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 6, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 13, -10 }, { 9, 14, -10 }, { 9, 14, -10 }, { 9, 15, -12 }, { 11, 15, -12 }, { 15, 16, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 12, { 410, 15, 5632, 11, 20, 19, 19, { { 0, 11, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 10, 14, -2 }, { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 17, -10 }, { 13, 18, -10 }, { 13, 18, -10 }, { 13, 19, -12 }, { 15, 19, -12 }, { 19, 20, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 14, { 410, 15, 5632, 15, 24, 23, 23, { { 0, 11, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 13, 18, -2 }, { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 21, -8 }, { 15, 21, -10 }, { 17, 22, -10 }, { 17, 22, -10 }, { 17, 23, -12 }, { 19, 23, -12 }, { 23, 24, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 16, { 410, 15, 5632, 19, 28, 27, 27, { { 0, 11, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 16, 20, -2 }, { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 25, -8 }, { 19, 25, -10 }, { 21, 26, -10 }, { 21, 26, -10 }, { 21, 27, -12 }, { 23, 27, -12 }, { 27, 28, -12 } } } }, { .bpp = DSC_BPP(12), .bpc = 8, { 341, 15, 2048, 3, 12, 11, 11, { { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 8, -8 }, { 3, 9, -10 }, { 5, 9, -10 }, { 5, 9, -12 }, { 5, 9, -12 }, { 7, 10, -12 }, { 10, 11, -12 } } } }, { .bpp = DSC_BPP(12), .bpc = 10, { 341, 15, 2048, 7, 16, 15, 15, { { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 }, { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 12, -8 }, { 7, 13, -10 }, { 9, 13, -10 }, { 9, 13, -12 }, { 9, 13, -12 }, { 11, 14, -12 }, { 14, 15, -12 } } } }, { .bpp = DSC_BPP(12), .bpc = 12, { 341, 15, 2048, 11, 20, 19, 19, { { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 }, { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 16, -8 }, { 11, 17, -10 }, { 13, 17, -10 }, { 13, 17, -12 }, { 13, 17, -12 }, { 15, 18, -12 }, { 18, 19, -12 } } } }, { .bpp = DSC_BPP(12), .bpc = 14, { 341, 15, 2048, 15, 24, 23, 23, { { 0, 6, 2 }, { 7, 10, 0 }, { 9, 13, 0 }, { 11, 16, -2 }, { 14, 17, -4 }, { 15, 18, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 20, -8 }, { 15, 21, -10 }, { 17, 21, -10 }, { 17, 21, -12 }, { 17, 21, -12 }, { 19, 22, -12 }, { 22, 23, -12 } } } }, { .bpp = DSC_BPP(12), .bpc = 16, { 341, 15, 2048, 19, 28, 27, 27, { { 0, 6, 2 }, { 6, 11, 0 }, { 11, 15, 0 }, { 14, 18, -2 }, { 18, 21, -4 }, { 19, 22, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 24, -8 }, { 19, 25, -10 }, { 21, 25, -10 }, { 21, 25, -12 }, { 21, 25, -12 }, { 23, 26, -12 }, { 26, 27, -12 } } } }, { .bpp = DSC_BPP(15), .bpc = 8, { 273, 15, 2048, 3, 12, 11, 11, { { 0, 0, 10 }, { 0, 1, 8 }, { 0, 1, 6 }, { 0, 2, 4 }, { 1, 2, 2 }, { 1, 3, 0 }, { 1, 3, -2 }, { 2, 4, -4 }, { 2, 5, -6 }, { 3, 5, -8 }, { 4, 6, -10 }, { 4, 7, -10 }, { 5, 7, -12 }, { 7, 8, -12 }, { 8, 9, -12 } } } }, { .bpp = DSC_BPP(15), .bpc = 10, { 273, 15, 2048, 7, 16, 15, 15, { { 0, 2, 10 }, { 2, 5, 8 }, { 3, 5, 6 }, { 4, 6, 4 }, { 5, 6, 2 }, { 5, 7, 0 }, { 5, 7, -2 }, { 6, 8, -4 }, { 6, 9, -6 }, { 7, 9, -8 }, { 8, 10, -10 }, { 8, 11, -10 }, { 9, 11, -12 }, { 11, 12, -12 }, { 12, 13, -12 } } } }, { .bpp = DSC_BPP(15), .bpc = 12, { 273, 15, 2048, 11, 20, 19, 19, { { 0, 4, 10 }, { 2, 7, 8 }, { 4, 9, 6 }, { 6, 11, 4 }, { 9, 11, 2 }, { 9, 11, 0 }, { 9, 12, -2 }, { 10, 12, -4 }, { 11, 13, -6 }, { 11, 13, -8 }, { 12, 14, -10 }, { 13, 15, -10 }, { 13, 15, -12 }, { 15, 16, -12 }, { 16, 17, -12 } } } }, { .bpp = DSC_BPP(15), .bpc = 14, { 273, 15, 2048, 15, 24, 23, 23, { { 0, 4, 10 }, { 3, 8, 8 }, { 6, 11, 6 }, { 9, 14, 4 }, { 13, 15, 2 }, { 13, 15, 0 }, { 13, 16, -2 }, { 14, 16, -4 }, { 15, 17, -6 }, { 15, 17, -8 }, { 16, 18, -10 }, { 17, 19, -10 }, { 17, 19, -12 }, { 19, 20, -12 }, { 20, 21, -12 } } } }, { .bpp = DSC_BPP(15), .bpc = 16, { 273, 15, 2048, 19, 28, 27, 27, { { 0, 4, 10 }, { 4, 9, 8 }, { 8, 13, 6 }, { 12, 17, 4 }, { 17, 19, 2 }, { 17, 20, 0 }, { 17, 20, -2 }, { 18, 20, -4 }, { 19, 21, -6 }, { 19, 21, -8 }, { 20, 22, -10 }, { 21, 23, -10 }, { 21, 23, -12 }, { 23, 24, -12 }, { 24, 25, -12 } } } }, { /* sentinel */ } }; /* * Selected Rate Control Related Parameter Recommended Values for 4:2:2 from * DSC v1.2, v1.2a, v1.2b * * Cross-checked against C Model releases: DSC_model_20161212 and 20210623 */ static const struct rc_parameters_data rc_parameters_1_2_422[] = { { .bpp = DSC_BPP(6), .bpc = 8, { 512, 15, 6144, 3, 12, 11, 11, { { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 10, -10 }, { 5, 10, -10 }, { 5, 11, -12 }, { 5, 11, -12 }, { 9, 12, -12 }, { 12, 13, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 10, { 512, 15, 6144, 7, 16, 15, 15, { { 0, 8, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 14, -10 }, { 9, 14, -10 }, { 9, 15, -12 }, { 9, 15, -12 }, { 13, 16, -12 }, { 16, 17, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 12, { 512, 15, 6144, 11, 20, 19, 19, { { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 }, { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 18, -10 }, { 13, 18, -10 }, { 13, 19, -12 }, { 13, 19, -12 }, { 17, 20, -12 }, { 20, 21, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 14, { 512, 15, 6144, 15, 24, 23, 23, { { 0, 12, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 }, { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 21, -8 }, { 15, 22, -10 }, { 17, 22, -10 }, { 17, 23, -12 }, { 17, 23, -12 }, { 21, 24, -12 }, { 24, 25, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 16, { 512, 15, 6144, 19, 28, 27, 27, { { 0, 12, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 15, 20, -2 }, { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 25, -8 }, { 19, 26, -10 }, { 21, 26, -10 }, { 21, 27, -12 }, { 21, 27, -12 }, { 25, 28, -12 }, { 28, 29, -12 } } } }, { .bpp = DSC_BPP(7), .bpc = 8, { 410, 15, 5632, 3, 12, 11, 11, { { 0, 3, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 2, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 9, -10 }, { 5, 10, -10 }, { 5, 10, -10 }, { 5, 11, -12 }, { 7, 11, -12 }, { 11, 12, -12 } } } }, { .bpp = DSC_BPP(7), .bpc = 10, { 410, 15, 5632, 7, 16, 15, 15, { { 0, 7, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 6, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 13, -10 }, { 9, 14, -10 }, { 9, 14, -10 }, { 9, 15, -12 }, { 11, 15, -12 }, { 15, 16, -12 } } } }, { .bpp = DSC_BPP(7), .bpc = 12, { 410, 15, 5632, 11, 20, 19, 19, { { 0, 11, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 10, 14, -2 }, { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 17, -10 }, { 13, 18, -10 }, { 13, 18, -10 }, { 13, 19, -12 }, { 15, 19, -12 }, { 19, 20, -12 } } } }, { .bpp = DSC_BPP(7), .bpc = 14, { 410, 15, 5632, 15, 24, 23, 23, { { 0, 11, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 13, 18, -2 }, { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 21, -8 }, { 15, 21, -10 }, { 17, 22, -10 }, { 17, 22, -10 }, { 17, 23, -12 }, { 19, 23, -12 }, { 23, 24, -12 } } } }, { .bpp = DSC_BPP(7), .bpc = 16, { 410, 15, 5632, 19, 28, 27, 27, { { 0, 11, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 16, 20, -2 }, { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 25, -8 }, { 19, 25, -10 }, { 21, 26, -10 }, { 21, 26, -10 }, { 21, 27, -12 }, { 23, 27, -12 }, { 27, 28, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 8, { 341, 15, 2048, 3, 12, 11, 11, { { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 8, -8 }, { 3, 9, -10 }, { 5, 9, -10 }, { 5, 9, -12 }, { 5, 9, -12 }, { 7, 10, -12 }, { 10, 11, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 10, { 341, 15, 2048, 7, 16, 15, 15, { { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 }, { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 12, -8 }, { 7, 13, -10 }, { 9, 13, -10 }, { 9, 13, -12 }, { 9, 13, -12 }, { 11, 14, -12 }, { 14, 15, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 12, { 341, 15, 2048, 11, 20, 19, 19, { { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 }, { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 16, -8 }, { 11, 17, -10 }, { 13, 17, -10 }, { 13, 17, -12 }, { 13, 17, -12 }, { 15, 18, -12 }, { 18, 19, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 14, { 341, 15, 2048, 15, 24, 23, 23, { { 0, 6, 2 }, { 7, 10, 0 }, { 9, 13, 0 }, { 11, 16, -2 }, { 14, 17, -4 }, { 15, 18, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 20, -8 }, { 15, 21, -10 }, { 17, 21, -10 }, { 17, 21, -12 }, { 17, 21, -12 }, { 19, 22, -12 }, { 22, 23, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 16, { 341, 15, 2048, 19, 28, 27, 27, { { 0, 6, 2 }, { 6, 11, 0 }, { 11, 15, 0 }, { 14, 18, -2 }, { 18, 21, -4 }, { 19, 22, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 24, -8 }, { 19, 25, -10 }, { 21, 25, -10 }, { 21, 25, -12 }, { 21, 25, -12 }, { 23, 26, -12 }, { 26, 27, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 8, { 273, 15, 2048, 3, 12, 11, 11, { { 0, 0, 10 }, { 0, 1, 8 }, { 0, 1, 6 }, { 0, 2, 4 }, { 1, 2, 2 }, { 1, 3, 0 }, { 1, 3, -2 }, { 2, 4, -4 }, { 2, 5, -6 }, { 3, 5, -8 }, { 4, 6, -10 }, { 4, 7, -10 }, { 5, 7, -12 }, { 7, 8, -12 }, { 8, 9, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 10, { 273, 15, 2048, 7, 16, 15, 15, { { 0, 2, 10 }, { 2, 5, 8 }, { 3, 5, 6 }, { 4, 6, 4 }, { 5, 6, 2 }, { 5, 7, 0 }, { 5, 7, -2 }, { 6, 8, -4 }, { 6, 9, -6 }, { 7, 9, -8 }, { 8, 10, -10 }, { 8, 11, -10 }, { 9, 11, -12 }, { 11, 12, -12 }, { 12, 13, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 12, { 273, 15, 2048, 11, 20, 19, 19, { { 0, 4, 10 }, { 2, 7, 8 }, { 4, 9, 6 }, { 6, 11, 4 }, { 9, 11, 2 }, { 9, 11, 0 }, { 9, 12, -2 }, { 10, 12, -4 }, { 11, 13, -6 }, { 11, 13, -8 }, { 12, 14, -10 }, { 13, 15, -10 }, { 13, 15, -12 }, { 15, 16, -12 }, { 16, 17, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 14, { 273, 15, 2048, 15, 24, 23, 23, { { 0, 4, 10 }, { 3, 8, 8 }, { 6, 11, 6 }, { 9, 14, 4 }, { 13, 15, 2 }, { 13, 15, 0 }, { 13, 16, -2 }, { 14, 16, -4 }, { 15, 17, -6 }, { 15, 17, -8 }, { 16, 18, -10 }, { 17, 19, -10 }, { 17, 19, -12 }, { 19, 20, -12 }, { 20, 21, -12 } } } }, { .bpp = DSC_BPP(10), .bpc = 16, { 273, 15, 2048, 19, 28, 27, 27, { { 0, 4, 10 }, { 4, 9, 8 }, { 8, 13, 6 }, { 12, 17, 4 }, { 17, 19, 2 }, { 17, 20, 0 }, { 17, 20, -2 }, { 18, 20, -4 }, { 19, 21, -6 }, { 19, 21, -8 }, { 20, 22, -10 }, { 21, 23, -10 }, { 21, 23, -12 }, { 23, 24, -12 }, { 24, 25, -12 } } } }, { /* sentinel */ } }; /* * Selected Rate Control Related Parameter Recommended Values for 4:2:2 from * DSC v1.2, v1.2a, v1.2b * * Cross-checked against C Model releases: DSC_model_20161212 and 20210623 */ static const struct rc_parameters_data rc_parameters_1_2_420[] = { { .bpp = DSC_BPP(4), .bpc = 8, { 512, 12, 6144, 3, 12, 11, 11, { { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 10, -10 }, { 5, 10, -10 }, { 5, 11, -12 }, { 5, 11, -12 }, { 9, 12, -12 }, { 12, 13, -12 } } } }, { .bpp = DSC_BPP(4), .bpc = 10, { 512, 12, 6144, 7, 16, 15, 15, { { 0, 8, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 14, -10 }, { 9, 14, -10 }, { 9, 15, -12 }, { 9, 15, -12 }, { 13, 16, -12 }, { 16, 17, -12 } } } }, { .bpp = DSC_BPP(4), .bpc = 12, { 512, 12, 6144, 11, 20, 19, 19, { { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 }, { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 18, -10 }, { 13, 18, -10 }, { 13, 19, -12 }, { 13, 19, -12 }, { 17, 20, -12 }, { 20, 21, -12 } } } }, { .bpp = DSC_BPP(4), .bpc = 14, { 512, 12, 6144, 15, 24, 23, 23, { { 0, 12, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 }, { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 21, -8 }, { 15, 22, -10 }, { 17, 22, -10 }, { 17, 23, -12 }, { 17, 23, -12 }, { 21, 24, -12 }, { 24, 25, -12 } } } }, { .bpp = DSC_BPP(4), .bpc = 16, { 512, 12, 6144, 19, 28, 27, 27, { { 0, 12, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 15, 20, -2 }, { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 25, -8 }, { 19, 26, -10 }, { 21, 26, -10 }, { 21, 27, -12 }, { 21, 27, -12 }, { 25, 28, -12 }, { 28, 29, -12 } } } }, { .bpp = DSC_BPP(5), .bpc = 8, { 410, 15, 5632, 3, 12, 11, 11, { { 0, 3, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 2, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 9, -8 }, { 3, 9, -10 }, { 5, 10, -10 }, { 5, 10, -10 }, { 5, 11, -12 }, { 7, 11, -12 }, { 11, 12, -12 } } } }, { .bpp = DSC_BPP(5), .bpc = 10, { 410, 15, 5632, 7, 16, 15, 15, { { 0, 7, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 6, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 13, -10 }, { 9, 14, -10 }, { 9, 14, -10 }, { 9, 15, -12 }, { 11, 15, -12 }, { 15, 16, -12 } } } }, { .bpp = DSC_BPP(5), .bpc = 12, { 410, 15, 5632, 11, 20, 19, 19, { { 0, 11, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 10, 14, -2 }, { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 17, -8 }, { 11, 17, -10 }, { 13, 18, -10 }, { 13, 18, -10 }, { 13, 19, -12 }, { 15, 19, -12 }, { 19, 20, -12 } } } }, { .bpp = DSC_BPP(5), .bpc = 14, { 410, 15, 5632, 15, 24, 23, 23, { { 0, 11, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 13, 18, -2 }, { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 21, -8 }, { 15, 21, -10 }, { 17, 22, -10 }, { 17, 22, -10 }, { 17, 23, -12 }, { 19, 23, -12 }, { 23, 24, -12 } } } }, { .bpp = DSC_BPP(5), .bpc = 16, { 410, 15, 5632, 19, 28, 27, 27, { { 0, 11, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 16, 20, -2 }, { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 25, -8 }, { 19, 25, -10 }, { 21, 26, -10 }, { 21, 26, -10 }, { 21, 27, -12 }, { 23, 27, -12 }, { 27, 28, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 8, { 341, 15, 2048, 3, 12, 11, 11, { { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, { 3, 8, -8 }, { 3, 9, -10 }, { 5, 9, -10 }, { 5, 9, -12 }, { 5, 9, -12 }, { 7, 10, -12 }, { 10, 12, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 10, { 341, 15, 2048, 7, 16, 15, 15, { { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 }, { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 12, -8 }, { 7, 13, -10 }, { 9, 13, -10 }, { 9, 13, -12 }, { 9, 13, -12 }, { 11, 14, -12 }, { 14, 15, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 12, { 341, 15, 2048, 11, 20, 19, 19, { { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 }, { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, { 11, 16, -8 }, { 11, 17, -10 }, { 13, 17, -10 }, { 13, 17, -12 }, { 13, 17, -12 }, { 15, 18, -12 }, { 18, 19, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 14, { 341, 15, 2048, 15, 24, 23, 23, { { 0, 6, 2 }, { 7, 10, 0 }, { 9, 13, 0 }, { 11, 16, -2 }, { 14, 17, -4 }, { 15, 18, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 20, -8 }, { 15, 21, -10 }, { 17, 21, -10 }, { 17, 21, -12 }, { 17, 21, -12 }, { 19, 22, -12 }, { 22, 23, -12 } } } }, { .bpp = DSC_BPP(6), .bpc = 16, { 341, 15, 2048, 19, 28, 27, 27, { { 0, 6, 2 }, { 6, 11, 0 }, { 11, 15, 0 }, { 14, 18, -2 }, { 18, 21, -4 }, { 19, 22, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, { 19, 24, -8 }, { 19, 25, -10 }, { 21, 25, -10 }, { 21, 25, -12 }, { 21, 25, -12 }, { 23, 26, -12 }, { 26, 27, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 8, { 256, 15, 2048, 3, 12, 11, 11, { { 0, 0, 10 }, { 0, 1, 8 }, { 0, 1, 6 }, { 0, 2, 4 }, { 1, 2, 2 }, { 1, 3, 0 }, { 1, 3, -2 }, { 2, 4, -4 }, { 2, 5, -6 }, { 3, 5, -8 }, { 4, 6, -10 }, { 4, 7, -10 }, { 5, 7, -12 }, { 7, 8, -12 }, { 8, 9, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 10, { 256, 15, 2048, 7, 16, 15, 15, { { 0, 2, 10 }, { 2, 5, 8 }, { 3, 5, 6 }, { 4, 6, 4 }, { 5, 6, 2 }, { 5, 7, 0 }, { 5, 7, -2 }, { 6, 8, -4 }, { 6, 9, -6 }, { 7, 9, -8 }, { 8, 10, -10 }, { 8, 11, -10 }, { 9, 11, -12 }, { 11, 12, -12 }, { 12, 13, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 12, { 256, 15, 2048, 11, 20, 19, 19, { { 0, 4, 10 }, { 2, 7, 8 }, { 4, 9, 6 }, { 6, 11, 4 }, { 9, 11, 2 }, { 9, 11, 0 }, { 9, 12, -2 }, { 10, 12, -4 }, { 11, 13, -6 }, { 11, 13, -8 }, { 12, 14, -10 }, { 13, 15, -10 }, { 13, 15, -12 }, { 15, 16, -12 }, { 16, 17, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 14, { 256, 15, 2048, 15, 24, 23, 23, { { 0, 4, 10 }, { 3, 8, 8 }, { 6, 11, 6 }, { 9, 14, 4 }, { 13, 15, 2 }, { 13, 15, 0 }, { 13, 16, -2 }, { 14, 16, -4 }, { 15, 17, -6 }, { 15, 17, -8 }, { 16, 18, -10 }, { 17, 19, -10 }, { 17, 19, -12 }, { 19, 20, -12 }, { 20, 21, -12 } } } }, { .bpp = DSC_BPP(8), .bpc = 16, { 256, 15, 2048, 19, 28, 27, 27, { { 0, 4, 10 }, { 4, 9, 8 }, { 8, 13, 6 }, { 12, 17, 4 }, { 17, 19, 2 }, { 17, 20, 0 }, { 17, 20, -2 }, { 18, 20, -4 }, { 19, 21, -6 }, { 19, 21, -8 }, { 20, 22, -10 }, { 21, 23, -10 }, { 21, 23, -12 }, { 23, 24, -12 }, { 24, 25, -12 } } } }, { /* sentinel */ } }; static const struct rc_parameters *get_rc_params(const struct rc_parameters_data *rc_parameters, u16 dsc_bpp, u8 bits_per_component) { int i; for (i = 0; rc_parameters[i].bpp; i++) if (rc_parameters[i].bpp == dsc_bpp && rc_parameters[i].bpc == bits_per_component) return &rc_parameters[i].params; return NULL; } /** * drm_dsc_setup_rc_params() - Set parameters and limits for RC model in * accordance with the DSC 1.1 or 1.2 specification and DSC C Model * Required bits_per_pixel and bits_per_component to be set before calling this * function. * * @vdsc_cfg: DSC Configuration data partially filled by driver * @type: operating mode and standard to follow * * Return: 0 or -error code in case of an error */ int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg, enum drm_dsc_params_type type) { const struct rc_parameters_data *data; const struct rc_parameters *rc_params; int i; if (WARN_ON_ONCE(!vdsc_cfg->bits_per_pixel || !vdsc_cfg->bits_per_component)) return -EINVAL; switch (type) { case DRM_DSC_1_2_444: data = rc_parameters_1_2_444; break; case DRM_DSC_1_1_PRE_SCR: data = rc_parameters_pre_scr; break; case DRM_DSC_1_2_422: data = rc_parameters_1_2_422; break; case DRM_DSC_1_2_420: data = rc_parameters_1_2_420; break; default: return -EINVAL; } rc_params = get_rc_params(data, vdsc_cfg->bits_per_pixel, vdsc_cfg->bits_per_component); if (!rc_params) return -EINVAL; vdsc_cfg->first_line_bpg_offset = rc_params->first_line_bpg_offset; vdsc_cfg->initial_xmit_delay = rc_params->initial_xmit_delay; vdsc_cfg->initial_offset = rc_params->initial_offset; vdsc_cfg->flatness_min_qp = rc_params->flatness_min_qp; vdsc_cfg->flatness_max_qp = rc_params->flatness_max_qp; vdsc_cfg->rc_quant_incr_limit0 = rc_params->rc_quant_incr_limit0; vdsc_cfg->rc_quant_incr_limit1 = rc_params->rc_quant_incr_limit1; for (i = 0; i < DSC_NUM_BUF_RANGES; i++) { vdsc_cfg->rc_range_params[i].range_min_qp = rc_params->rc_range_params[i].range_min_qp; vdsc_cfg->rc_range_params[i].range_max_qp = rc_params->rc_range_params[i].range_max_qp; /* * Range BPG Offset uses 2's complement and is only a 6 bits. So * mask it to get only 6 bits. */ vdsc_cfg->rc_range_params[i].range_bpg_offset = rc_params->rc_range_params[i].range_bpg_offset & DSC_RANGE_BPG_OFFSET_MASK; } return 0; } EXPORT_SYMBOL(drm_dsc_setup_rc_params); /** * drm_dsc_compute_rc_parameters() - Write rate control * parameters to the dsc configuration defined in * &struct drm_dsc_config in accordance with the DSC 1.2 * specification. Some configuration fields must be present * beforehand. * * @vdsc_cfg: * DSC Configuration data partially filled by driver */ int drm_dsc_compute_rc_parameters(struct drm_dsc_config *vdsc_cfg) { unsigned long groups_per_line = 0; unsigned long groups_total = 0; unsigned long num_extra_mux_bits = 0; unsigned long slice_bits = 0; unsigned long hrd_delay = 0; unsigned long final_scale = 0; unsigned long rbs_min = 0; if (vdsc_cfg->native_420 || vdsc_cfg->native_422) { /* Number of groups used to code each line of a slice */ groups_per_line = DIV_ROUND_UP(vdsc_cfg->slice_width / 2, DSC_RC_PIXELS_PER_GROUP); /* chunksize in Bytes */ vdsc_cfg->slice_chunk_size = DIV_ROUND_UP(vdsc_cfg->slice_width / 2 * vdsc_cfg->bits_per_pixel, (8 * 16)); } else { /* Number of groups used to code each line of a slice */ groups_per_line = DIV_ROUND_UP(vdsc_cfg->slice_width, DSC_RC_PIXELS_PER_GROUP); /* chunksize in Bytes */ vdsc_cfg->slice_chunk_size = DIV_ROUND_UP(vdsc_cfg->slice_width * vdsc_cfg->bits_per_pixel, (8 * 16)); } if (vdsc_cfg->convert_rgb) num_extra_mux_bits = 3 * (vdsc_cfg->mux_word_size + (4 * vdsc_cfg->bits_per_component + 4) - 2); else if (vdsc_cfg->native_422) num_extra_mux_bits = 4 * vdsc_cfg->mux_word_size + (4 * vdsc_cfg->bits_per_component + 4) + 3 * (4 * vdsc_cfg->bits_per_component) - 2; else num_extra_mux_bits = 3 * vdsc_cfg->mux_word_size + (4 * vdsc_cfg->bits_per_component + 4) + 2 * (4 * vdsc_cfg->bits_per_component) - 2; /* Number of bits in one Slice */ slice_bits = 8 * vdsc_cfg->slice_chunk_size * vdsc_cfg->slice_height; while ((num_extra_mux_bits > 0) && ((slice_bits - num_extra_mux_bits) % vdsc_cfg->mux_word_size)) num_extra_mux_bits--; if (groups_per_line < vdsc_cfg->initial_scale_value - 8) vdsc_cfg->initial_scale_value = groups_per_line + 8; /* scale_decrement_interval calculation according to DSC spec 1.11 */ if (vdsc_cfg->initial_scale_value > 8) vdsc_cfg->scale_decrement_interval = groups_per_line / (vdsc_cfg->initial_scale_value - 8); else vdsc_cfg->scale_decrement_interval = DSC_SCALE_DECREMENT_INTERVAL_MAX; vdsc_cfg->final_offset = vdsc_cfg->rc_model_size - (vdsc_cfg->initial_xmit_delay * vdsc_cfg->bits_per_pixel + 8) / 16 + num_extra_mux_bits; if (vdsc_cfg->final_offset >= vdsc_cfg->rc_model_size) { DRM_DEBUG_KMS("FinalOfs < RcModelSze for this InitialXmitDelay\n"); return -ERANGE; } final_scale = (vdsc_cfg->rc_model_size * 8) / (vdsc_cfg->rc_model_size - vdsc_cfg->final_offset); if (vdsc_cfg->slice_height > 1) /* * NflBpgOffset is 16 bit value with 11 fractional bits * hence we multiply by 2^11 for preserving the * fractional part */ vdsc_cfg->nfl_bpg_offset = DIV_ROUND_UP((vdsc_cfg->first_line_bpg_offset << 11), (vdsc_cfg->slice_height - 1)); else vdsc_cfg->nfl_bpg_offset = 0; /* Number of groups used to code the entire slice */ groups_total = groups_per_line * vdsc_cfg->slice_height; /* slice_bpg_offset is 16 bit value with 11 fractional bits */ vdsc_cfg->slice_bpg_offset = DIV_ROUND_UP(((vdsc_cfg->rc_model_size - vdsc_cfg->initial_offset + num_extra_mux_bits) << 11), groups_total); if (final_scale > 9) { /* * ScaleIncrementInterval = * finaloffset/((NflBpgOffset + SliceBpgOffset)*8(finalscale - 1.125)) * as (NflBpgOffset + SliceBpgOffset) has 11 bit fractional value, * we need divide by 2^11 from pstDscCfg values */ vdsc_cfg->scale_increment_interval = (vdsc_cfg->final_offset * (1 << 11)) / ((vdsc_cfg->nfl_bpg_offset + vdsc_cfg->slice_bpg_offset) * (final_scale - 9)); } else { /* * If finalScaleValue is less than or equal to 9, a value of 0 should * be used to disable the scale increment at the end of the slice */ vdsc_cfg->scale_increment_interval = 0; } /* * DSC spec mentions that bits_per_pixel specifies the target * bits/pixel (bpp) rate that is used by the encoder, * in steps of 1/16 of a bit per pixel */ rbs_min = vdsc_cfg->rc_model_size - vdsc_cfg->initial_offset + DIV_ROUND_UP(vdsc_cfg->initial_xmit_delay * vdsc_cfg->bits_per_pixel, 16) + groups_per_line * vdsc_cfg->first_line_bpg_offset; hrd_delay = DIV_ROUND_UP((rbs_min * 16), vdsc_cfg->bits_per_pixel); vdsc_cfg->rc_bits = (hrd_delay * vdsc_cfg->bits_per_pixel) / 16; vdsc_cfg->initial_dec_delay = hrd_delay - vdsc_cfg->initial_xmit_delay; return 0; } EXPORT_SYMBOL(drm_dsc_compute_rc_parameters); /** * drm_dsc_get_bpp_int() - Get integer bits per pixel value for the given DRM DSC config * @vdsc_cfg: Pointer to DRM DSC config struct * * Return: Integer BPP value */ u32 drm_dsc_get_bpp_int(const struct drm_dsc_config *vdsc_cfg) { WARN_ON_ONCE(vdsc_cfg->bits_per_pixel & 0xf); return vdsc_cfg->bits_per_pixel >> 4; } EXPORT_SYMBOL(drm_dsc_get_bpp_int); /** * drm_dsc_initial_scale_value() - Calculate the initial scale value for the given DSC config * @dsc: Pointer to DRM DSC config struct * * Return: Calculated initial scale value */ u8 drm_dsc_initial_scale_value(const struct drm_dsc_config *dsc) { return 8 * dsc->rc_model_size / (dsc->rc_model_size - dsc->initial_offset); } EXPORT_SYMBOL(drm_dsc_initial_scale_value); /** * drm_dsc_flatness_det_thresh() - Calculate the flatness_det_thresh for the given DSC config * @dsc: Pointer to DRM DSC config struct * * Return: Calculated flatness det thresh value */ u32 drm_dsc_flatness_det_thresh(const struct drm_dsc_config *dsc) { return 2 << (dsc->bits_per_component - 8); } EXPORT_SYMBOL(drm_dsc_flatness_det_thresh);
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