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/*
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* artifact.c - management of video artifacting settings
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*
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* Copyright (C) 2013 Tomasz Krasuski
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* Copyright (C) 2013 Atari800 development team (see DOC/CREDITS)
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*
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* This file is part of the Atari800 emulator project which emulates
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* the Atari 400, 800, 800XL, 130XE, and 5200 8-bit computers.
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* Atari800 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 2 of the License, or
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* (at your option) any later version.
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* Atari800 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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* You should have received a copy of the GNU General Public License along
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* with Atari800; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "artifact.h"
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#include "antic.h"
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#include "atari.h"
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#include "cfg.h"
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#include "log.h"
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#ifdef PAL_BLENDING
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#include "pal_blending.h"
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#endif /* PAL_BLENDING */
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#include "util.h"
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#if SUPPORTS_CHANGE_VIDEOMODE
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#include "videomode.h"
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#endif /* SUPPORTS_CHANGE_VIDEOMODE */
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ARTIFACT_t ARTIFACT_mode = ARTIFACT_NONE;
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static ARTIFACT_t mode_ntsc = ARTIFACT_NONE;
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static ARTIFACT_t mode_pal = ARTIFACT_NONE;
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static char const * const mode_cfg_strings[ARTIFACT_SIZE] = {
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"NONE",
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"NTSC-OLD",
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"NTSC-NEW",
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#if NTSC_FILTER
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"NTSC-FULL",
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#endif /* NTSC_FILTER */
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#ifndef NO_SIMPLE_PAL_BLENDING
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"PAL-SIMPLE",
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#endif /* NO_SIMPLE_PAL_BLENDING */
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#ifdef PAL_BLENDING
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"PAL-BLEND"
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#endif /* PAL_BLENDING */
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};
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static void UpdateMode(ARTIFACT_t old_mode, int reinit)
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{
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#if (NTSC_FILTER && SUPPORTS_CHANGE_VIDEOMODE) || defined(PAL_BLENDING)
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int need_reinit = FALSE;
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#endif /* (NTSC_FILTER && SUPPORTS_CHANGE_VIDEOMODE) || defined(PAL_BLENDING) */
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if (ARTIFACT_mode == old_mode)
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return;
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/* TV effect has changed. */
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#if NTSC_FILTER && SUPPORTS_CHANGE_VIDEOMODE
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/* If switched between non-filter and NTSC filter, video mode needs update. */
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if (ARTIFACT_mode == ARTIFACT_NTSC_FULL ||
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old_mode == ARTIFACT_NTSC_FULL)
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need_reinit = TRUE;
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#endif /* NTSC_FILTER && SUPPORTS_CHANGE_VIDEOMODE */
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#ifdef PAL_BLENDING
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/* If PAL blending was enabled/disabled, video mode needs update. */
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if (ARTIFACT_mode == ARTIFACT_PAL_BLEND ||
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old_mode == ARTIFACT_PAL_BLEND)
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need_reinit = TRUE;
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#endif /* PAL_BLENDING */
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#ifndef NO_SIMPLE_PAL_BLENDING
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ANTIC_pal_blending = ARTIFACT_mode == ARTIFACT_PAL_SIMPLE;
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#endif /* NO_SIMPLE_PAL_BLENDING */
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if (ARTIFACT_mode != ARTIFACT_NTSC_OLD &&
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ARTIFACT_mode != ARTIFACT_NTSC_NEW) {
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ANTIC_artif_new = ANTIC_artif_mode = 0;
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} else {
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if (ANTIC_artif_mode == 0)
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/* ANTIC new or old artifacting is being enabled */
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ANTIC_artif_mode = 1;
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ANTIC_artif_new = ARTIFACT_mode == ARTIFACT_NTSC_NEW;
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}
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ANTIC_UpdateArtifacting();
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#if SUPPORTS_CHANGE_VIDEOMODE
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if (need_reinit && reinit) {
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if (!VIDEOMODE_Update()) {
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ARTIFACT_t tmp = ARTIFACT_mode;
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/* Updating display failed, restore previous setting. */
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ARTIFACT_mode = old_mode;
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UpdateMode(tmp, FALSE);
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}
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}
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#endif /* SUPPORTS_CHANGE_VIDEOMODE */
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}
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static void UpdateFromTVMode(int tv_mode)
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{
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if (tv_mode == Atari800_TV_NTSC)
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ARTIFACT_mode = mode_ntsc;
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else /* tv_mode == Atari800_TV_PAL */
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ARTIFACT_mode = mode_pal;
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}
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void ARTIFACT_Set(ARTIFACT_t mode)
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{
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ARTIFACT_t old_effect = ARTIFACT_mode;
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ARTIFACT_mode = mode;
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if (Atari800_tv_mode == Atari800_TV_NTSC)
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mode_ntsc = mode;
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else /* Atari800_tv_mode == Atari800_TV_PAL */
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mode_pal = mode;
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UpdateMode(old_effect, TRUE);
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}
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void ARTIFACT_SetTVMode(int tv_mode)
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{
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ARTIFACT_t old_mode = ARTIFACT_mode;
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UpdateFromTVMode(tv_mode);
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UpdateMode(old_mode, TRUE);
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}
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int ARTIFACT_ReadConfig(char *option, char *ptr)
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{
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if (strcmp(option, "ARTIFACT_NTSC") == 0) {
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int i = CFG_MatchTextParameter(ptr, mode_cfg_strings, ARTIFACT_SIZE);
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if (i < 0)
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return FALSE;
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mode_ntsc = (ARTIFACT_t)i;
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}
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else if (strcmp(option, "ARTIFACT_PAL") == 0) {
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int i = CFG_MatchTextParameter(ptr, mode_cfg_strings, ARTIFACT_SIZE);
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if (i < 0)
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return FALSE;
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mode_pal = (ARTIFACT_t)i;
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}
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else if (strcmp(option, "ARTIFACT_NTSC_MODE") == 0) {
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int i = Util_sscandec(ptr);
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if (i < 0 || i > 4)
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return FALSE;
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ANTIC_artif_mode = i;
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}
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else
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return FALSE;
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return TRUE;
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}
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void ARTIFACT_WriteConfig(FILE *fp)
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{
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fprintf(fp, "ARTIFACT_NTSC=%s\n", mode_cfg_strings[mode_ntsc]);
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fprintf(fp, "ARTIFACT_PAL=%s\n", mode_cfg_strings[mode_pal]);
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fprintf(fp, "ARTIFACT_NTSC_MODE=%i\n", ANTIC_artif_mode);
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}
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int ARTIFACT_Initialise(int *argc, char *argv[])
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{
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int i;
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int j;
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for (i = j = 1; i < *argc; i++) {
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int i_a = (i + 1 < *argc); /* is argument available? */
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int a_m = FALSE; /* error, argument missing! */
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if (strcmp(argv[i], "-ntsc-artif") == 0) {
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if (i_a) {
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int idx = CFG_MatchTextParameter(argv[++i], mode_cfg_strings, ARTIFACT_SIZE);
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if (idx < 0) {
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Log_print("Invalid value for -ntsc-artif");
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return FALSE;
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}
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mode_ntsc = (ARTIFACT_t)idx;
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} else a_m = TRUE;
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}
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else if (strcmp(argv[i], "-pal-artif") == 0) {
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if (i_a) {
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int idx = CFG_MatchTextParameter(argv[++i], mode_cfg_strings, ARTIFACT_SIZE);
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if (idx < 0) {
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Log_print("Invalid value for -pal-artif");
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return FALSE;
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}
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mode_pal = (ARTIFACT_t)idx;
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} else a_m = TRUE;
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}
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else {
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if (strcmp(argv[i], "-help") == 0) {
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Log_print("\t-ntsc-artif none|ntsc-old|ntsc-new|ntsc-full");
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Log_print("\t Select video artifacts for NTSC");
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Log_print("\t-pal-artif none|pal-simple|pal-accu");
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Log_print("\t Select video artifacts for PAL");
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}
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argv[j++] = argv[i];
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}
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if (a_m) {
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Log_print("Missing argument for '%s'", argv[i]);
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return FALSE;
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}
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}
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*argc = j;
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/* Assume that Atari800_tv_mode has been already initialised. */
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UpdateFromTVMode(Atari800_tv_mode);
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UpdateMode(ARTIFACT_NONE, FALSE);
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return TRUE;
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}
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