mirror of https://github.com/marqs85/ossc.git
167 lines
7.1 KiB
C
167 lines
7.1 KiB
C
//
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// Copyright (C) 2015-2016 Markus Hiienkari <mhiienka@niksula.hut.fi>
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//
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// This file is part of Open Source Scan Converter project.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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#include <stdio.h>
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#include <unistd.h>
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#include "system.h"
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#include "av_controller.h"
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#include "video_modes.h"
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#define LINECNT_MAX_TOLERANCE 30
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extern avmode_t cm;
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const mode_data_t video_modes_default[] = VIDEO_MODES_DEF;
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mode_data_t video_modes[VIDEO_MODES_CNT];
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/* TODO: rewrite, check hz etc. */
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alt_8 get_mode_id(alt_u32 totlines, alt_u8 progressive, alt_u32 hz, video_type typemask)
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{
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alt_8 i;
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alt_u8 num_modes = sizeof(video_modes)/sizeof(mode_data_t);
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video_type mode_type;
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mode_flags valid_lm[] = { MODE_PT, (MODE_L2 | (MODE_L2<<cm.cc.l2_mode)), (MODE_L3_GEN_16_9<<cm.cc.l3_mode), (MODE_L4_GEN_4_3<<cm.cc.l4_mode), (MODE_L5_GEN_4_3<<cm.cc.l5_mode) };
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mode_flags target_lm;
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alt_u8 pt_only = 0;
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// one for each video_group
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alt_u8* group_ptr[] = { &pt_only, &cm.cc.pm_240p, &cm.cc.pm_384p, &cm.cc.pm_480i, &cm.cc.pm_480p, &cm.cc.pm_480p, &cm.cc.pm_1080i };
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for (i=0; i<num_modes; i++) {
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mode_type = video_modes[i].type;
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// disable particular mode based on input and user preference
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if (video_modes[i].group == GROUP_DTV480P) {
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if (cm.cc.s480p_mode == 0) // auto
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mode_type &= ~VIDEO_PC;
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else if (cm.cc.s480p_mode == 2) // VGA 640x480
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continue;
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} else if (video_modes[i].group == GROUP_VGA480P) {
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if (cm.cc.s480p_mode == 0) // auto
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mode_type &= ~VIDEO_EDTV;
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else if (cm.cc.s480p_mode == 1) // DTV 480P
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continue;
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} else if (video_modes[i].group > GROUP_1080I) {
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printf("WARNING: Corrupted mode (id %d)\n", i);
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continue;
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}
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target_lm = valid_lm[*group_ptr[video_modes[i].group]];
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if ((typemask & mode_type) && (target_lm & video_modes[i].flags) && (progressive == !(video_modes[i].flags & MODE_INTERLACED)) && (totlines <= (video_modes[i].v_total+LINECNT_MAX_TOLERANCE))) {
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// defaults
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cm.hdmitx_pixelrep = HDMITX_PIXELREP_DISABLE;
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cm.hdmitx_pixr_ifr = 0;
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cm.sample_mult = 1;
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cm.hsync_cut = 0;
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cm.target_lm = target_lm & video_modes[i].flags; //ensure L2 mode uniqueness
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switch (cm.target_lm) {
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case MODE_PT:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_1X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_FULLWIDTH;
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cm.hdmitx_pixelrep = ((video_modes[i].group == GROUP_240P) || (video_modes[i].group == GROUP_480I)) ? HDMITX_PIXELREP_2X : HDMITX_PIXELREP_DISABLE;
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cm.hdmitx_pixr_ifr = cm.hdmitx_pixelrep;
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break;
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case MODE_L2:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_2X;
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if ((video_modes[i].group == GROUP_240P) || (video_modes[i].group == GROUP_384P) || (video_modes[i].group == GROUP_480I)) {
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 2;
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} else {
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cm.fpga_hmultmode = FPGA_H_MULTMODE_FULLWIDTH;
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}
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cm.hdmitx_pixelrep = ((video_modes[i].group == GROUP_384P) ||
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(video_modes[i].group == GROUP_DTV480P) ||
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(video_modes[i].group == GROUP_VGA480P) ||
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((video_modes[i].group == GROUP_1080I) && (video_modes[i].h_total < 1200))) ? HDMITX_PIXELREP_2X : HDMITX_PIXELREP_DISABLE;
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break;
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case MODE_L2_256_COL:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_2X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 6;
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break;
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case MODE_L2_320_COL:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_2X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 4;
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break;
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case MODE_L3_GEN_16_9:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_3X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_FULLWIDTH;
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break;
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case MODE_L3_GEN_4_3:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_3X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_ASPECTFIX;
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break;
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case MODE_L3_320_COL:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_3X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 4;
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break;
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case MODE_L3_256_COL:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_3X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 5;
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break;
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case MODE_L4_GEN_4_3:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_4X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_FULLWIDTH;
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break;
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case MODE_L4_320_COL:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_4X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 4;
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break;
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case MODE_L4_256_COL:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_4X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 5;
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break;
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case MODE_L5_GEN_4_3:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_5X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_FULLWIDTH;
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cm.hsync_cut = 120;
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break;
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case MODE_L5_320_COL:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_5X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 5;
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cm.hsync_cut = 120;
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break;
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case MODE_L5_256_COL:
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cm.fpga_vmultmode = FPGA_V_MULTMODE_5X;
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cm.fpga_hmultmode = FPGA_H_MULTMODE_OPTIMIZED;
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cm.sample_mult = 6;
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cm.hsync_cut = 120;
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break;
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default:
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printf("WARNING: invalid target_lm\n");
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continue;
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break;
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}
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return i;
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}
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}
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return -1;
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}
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