mirror of https://github.com/marqs85/ossc.git
91 lines
5.4 KiB
C
91 lines
5.4 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 "video_modes.h"
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#define LINECNT_MAX_TOLERANCE 30
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const mode_data_t video_modes[] = {
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{ "240p_L3M0", 1280, 240, 6000, 1704, 262, 196, 16, 124, 3, (VIDEO_SDTV|VIDEO_PC), (MODE_L3_MODE0) },
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{ "240p_L3M1", 960, 240, 6000, 1278, 262, 147, 16, 93, 3, (VIDEO_SDTV|VIDEO_PC), (MODE_L3_MODE1|MODE_PLLDIVBY2) },
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{ "240p_L3M2", 320, 240, 6000, 426, 262, 49, 16, 31, 3, (VIDEO_LDTV|VIDEO_PC), (MODE_L3_MODE2|MODE_PLLDIVBY2) },
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{ "240p_L3M3", 256, 240, 6000, 341, 262, 39, 16, 25, 3, (VIDEO_LDTV|VIDEO_PC), (MODE_L3_MODE3|MODE_PLLDIVBY2) },
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{ "240p", 720, 240, 6000, 858, 262, 65, 16, 60, 3, (VIDEO_SDTV|VIDEO_PC), (MODE_L2ENABLE|MODE_PLLDIVBY2) },
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{ "288p_L3M0", 1280, 288, 5000, 1704, 312, 196, 16, 124, 3, (VIDEO_SDTV|VIDEO_PC), (MODE_L3_MODE0) },
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{ "288p_L3M1", 960, 288, 5000, 1278, 312, 147, 16, 93, 3, (VIDEO_SDTV|VIDEO_PC), (MODE_L3_MODE1|MODE_PLLDIVBY2) },
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{ "288p_L3M2", 320, 240, 5000, 426, 312, 49, 41, 31, 3, (VIDEO_LDTV|VIDEO_PC), (MODE_L3_MODE2|MODE_PLLDIVBY2) },
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{ "288p_L3M3", 256, 240, 5000, 341, 312, 39, 41, 25, 3, (VIDEO_LDTV|VIDEO_PC), (MODE_L3_MODE3|MODE_PLLDIVBY2) },
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{ "288p", 720, 288, 5000, 864, 312, 65, 16, 60, 3, (VIDEO_SDTV|VIDEO_PC), (MODE_L2ENABLE|MODE_PLLDIVBY2) },
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{ "384p", 496, 384, 5766, 640, 423, 50, 29, 62, 3, VIDEO_EDTV, (MODE_L2ENABLE|MODE_PLLDIVBY2) }, //Sega Model 2
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{ "640x384", 640, 384, 5500, 800, 492, 48, 63, 96, 2, VIDEO_PC, (MODE_L2ENABLE) }, //X68k @ 24kHz
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{ "480i", 720, 240, 5994, 858, 525, 65, 16, 60, 3, (VIDEO_SDTV|VIDEO_PC), (MODE_L2ENABLE|MODE_PLLDIVBY2|MODE_INTERLACED) },
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{ "480p", 720, 480, 5994, 858, 525, 60, 30, 62, 6, (VIDEO_EDTV|VIDEO_PC), (MODE_DTV480P) },
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{ "640x480", 640, 480, 6000, 800, 525, 48, 33, 96, 2, (VIDEO_PC|VIDEO_EDTV), (MODE_VGA480P) },
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{ "640x512", 640, 512, 6000, 800, 568, 48, 28, 96, 2, VIDEO_PC, 0 }, //X68k @ 31kHz
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{ "576i", 720, 288, 5000, 864, 625, 65, 16, 60, 3, (VIDEO_SDTV|VIDEO_PC), (MODE_L2ENABLE|MODE_PLLDIVBY2|MODE_INTERLACED) },
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{ "576p", 720, 576, 5000, 864, 625, 65, 32, 60, 6, VIDEO_EDTV, 0 },
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{ "800x600", 800, 600, 6000, 1056, 628, 88, 23, 128, 4, VIDEO_PC, 0 },
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{ "720p", 1280, 720, 5994, 1650, 750, 255, 20, 40, 5, VIDEO_HDTV, 0 },
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{ "1280x720", 1280, 720, 6000, 1650, 750, 220, 20, 40, 5, VIDEO_PC, 0 },
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{ "1024x768", 1024, 768, 6000, 1344, 806, 160, 29, 136, 6, VIDEO_PC, 0 },
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{ "1280x1024", 1280, 1024, 6000, 1688, 1066, 248, 38, 112, 3, VIDEO_PC, 0 },
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{ "1080i", 1920, 1080, 5994, 2200, 1125, 148, 16, 44, 5, VIDEO_HDTV, (MODE_INTERLACED) }, //Too high freq for L2 PLL
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{ "1080p", 1920, 1080, 5994, 2200, 1125, 188, 36, 44, 5, VIDEO_HDTV, 0 },
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{ "1920x1080", 1920, 1080, 6000, 2200, 1125, 148, 36, 44, 5, VIDEO_PC, 0 },
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};
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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, alt_u8 linemult_target, alt_u8 l3_mode, alt_u8 s480p_mode)
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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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// TODO: a better check
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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 480p mode based on input and user preference
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if (video_modes[i].flags & MODE_DTV480P) {
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if (s480p_mode == 0) // auto
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mode_type &= ~VIDEO_PC;
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else if (s480p_mode == 2) // VGA 640x480
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mode_type = 0;
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} else if (video_modes[i].flags & MODE_VGA480P) {
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if (s480p_mode == 0) // auto
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mode_type &= ~VIDEO_EDTV;
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else if (s480p_mode == 1) // DTV 480P
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mode_type = 0;
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}
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if ((typemask & mode_type) && (progressive == !(video_modes[i].flags & MODE_INTERLACED)) && (totlines <= (video_modes[i].v_total+LINECNT_MAX_TOLERANCE))) {
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if (linemult_target && (video_modes[i].flags & MODE_L3ENABLE_MASK) && ((video_modes[i].flags & MODE_L3ENABLE_MASK) == (1<<l3_mode))) {
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return i;
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} else if (!(video_modes[i].flags & MODE_L3ENABLE_MASK)) {
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return i;
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}
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}
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}
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return -1;
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}
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