Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Harry Wentland | 864 | 100.00% | 1 | 100.00% |
Total | 864 | 1 |
/* * Copyright 2012-17 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: AMD * */ #include "os_types.h" #include <drm/drm_dsc.h> #include "dscc_types.h" #include "rc_calc.h" double dsc_ceil(double num); static void copy_pps_fields(struct drm_dsc_config *to, const struct drm_dsc_config *from) { to->line_buf_depth = from->line_buf_depth; to->bits_per_component = from->bits_per_component; to->convert_rgb = from->convert_rgb; to->slice_width = from->slice_width; to->slice_height = from->slice_height; to->simple_422 = from->simple_422; to->native_422 = from->native_422; to->native_420 = from->native_420; to->pic_width = from->pic_width; to->pic_height = from->pic_height; to->rc_tgt_offset_high = from->rc_tgt_offset_high; to->rc_tgt_offset_low = from->rc_tgt_offset_low; to->bits_per_pixel = from->bits_per_pixel; to->rc_edge_factor = from->rc_edge_factor; to->rc_quant_incr_limit1 = from->rc_quant_incr_limit1; to->rc_quant_incr_limit0 = from->rc_quant_incr_limit0; to->initial_xmit_delay = from->initial_xmit_delay; to->initial_dec_delay = from->initial_dec_delay; to->block_pred_enable = from->block_pred_enable; to->first_line_bpg_offset = from->first_line_bpg_offset; to->second_line_bpg_offset = from->second_line_bpg_offset; to->initial_offset = from->initial_offset; memcpy(&to->rc_buf_thresh, &from->rc_buf_thresh, sizeof(from->rc_buf_thresh)); memcpy(&to->rc_range_params, &from->rc_range_params, sizeof(from->rc_range_params)); to->rc_model_size = from->rc_model_size; to->flatness_min_qp = from->flatness_min_qp; to->flatness_max_qp = from->flatness_max_qp; to->initial_scale_value = from->initial_scale_value; to->scale_decrement_interval = from->scale_decrement_interval; to->scale_increment_interval = from->scale_increment_interval; to->nfl_bpg_offset = from->nfl_bpg_offset; to->nsl_bpg_offset = from->nsl_bpg_offset; to->slice_bpg_offset = from->slice_bpg_offset; to->final_offset = from->final_offset; to->vbr_enable = from->vbr_enable; to->slice_chunk_size = from->slice_chunk_size; to->second_line_offset_adj = from->second_line_offset_adj; to->dsc_version_minor = from->dsc_version_minor; } static void copy_rc_to_cfg(struct drm_dsc_config *dsc_cfg, const struct rc_params *rc) { int i; dsc_cfg->rc_quant_incr_limit0 = rc->rc_quant_incr_limit0; dsc_cfg->rc_quant_incr_limit1 = rc->rc_quant_incr_limit1; dsc_cfg->initial_offset = rc->initial_fullness_offset; dsc_cfg->initial_xmit_delay = rc->initial_xmit_delay; dsc_cfg->first_line_bpg_offset = rc->first_line_bpg_offset; dsc_cfg->second_line_bpg_offset = rc->second_line_bpg_offset; dsc_cfg->flatness_min_qp = rc->flatness_min_qp; dsc_cfg->flatness_max_qp = rc->flatness_max_qp; for (i = 0; i < QP_SET_SIZE; ++i) { dsc_cfg->rc_range_params[i].range_min_qp = rc->qp_min[i]; dsc_cfg->rc_range_params[i].range_max_qp = rc->qp_max[i]; /* Truncate 8-bit signed value to 6-bit signed value */ dsc_cfg->rc_range_params[i].range_bpg_offset = 0x3f & rc->ofs[i]; } dsc_cfg->rc_model_size = rc->rc_model_size; dsc_cfg->rc_edge_factor = rc->rc_edge_factor; dsc_cfg->rc_tgt_offset_high = rc->rc_tgt_offset_hi; dsc_cfg->rc_tgt_offset_low = rc->rc_tgt_offset_lo; for (i = 0; i < QP_SET_SIZE - 1; ++i) dsc_cfg->rc_buf_thresh[i] = rc->rc_buf_thresh[i]; } int dscc_compute_dsc_parameters(const struct drm_dsc_config *pps, struct dsc_parameters *dsc_params) { enum colour_mode mode = pps->convert_rgb ? CM_RGB : (pps->simple_422 ? CM_444 : (pps->native_422 ? CM_422 : pps->native_420 ? CM_420 : CM_444)); enum bits_per_comp bpc = (pps->bits_per_component == 8) ? BPC_8 : (pps->bits_per_component == 10) ? BPC_10 : BPC_12; float bpp = ((float) pps->bits_per_pixel / 16.0); int slice_width = pps->slice_width; int slice_height = pps->slice_height; int ret; struct rc_params rc; struct drm_dsc_config dsc_cfg; double d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width; // TODO: Make sure the formula for calculating this is precise (ceiling vs. floor, and at what point they should be applied) if (pps->native_422 || pps->native_420) d_bytes_per_pixel /= 2; dsc_params->bytes_per_pixel = (uint32_t)dsc_ceil(d_bytes_per_pixel * 0x10000000); /* in native_422 or native_420 modes, the bits_per_pixel is double the target bpp * (the latter is what calc_rc_params expects) */ if (pps->native_422 || pps->native_420) bpp /= 2.0; calc_rc_params(&rc, mode, bpc, bpp, slice_width, slice_height, pps->dsc_version_minor); dsc_params->pps = *pps; dsc_params->pps.initial_scale_value = 8 * rc.rc_model_size / (rc.rc_model_size - rc.initial_fullness_offset); copy_pps_fields(&dsc_cfg, &dsc_params->pps); copy_rc_to_cfg(&dsc_cfg, &rc); dsc_cfg.mux_word_size = dsc_params->pps.bits_per_component <= 10 ? 48 : 64; ret = drm_dsc_compute_rc_parameters(&dsc_cfg); copy_pps_fields(&dsc_params->pps, &dsc_cfg); dsc_params->rc_buffer_model_size = dsc_cfg.rc_bits; return ret; }
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