fa74a364de
- this implementation is based on a more accurate colour emphasis from fceux. - The raw palette + nes decoder shader was kinda incomplete since the implementation was based on a per-frame basis which means that the emphasis bits were read once and applied to the whole frame. This means that some games that uses a per pixel or per scanline emphasis would not appear correct. The more accurate implementation reads emphasis bits from bits 5-7 of PPU[1] and saves this info in a separate frame. - The same implementation is also used to fix emphasis for the ntsc filter.
114 lines
2.3 KiB
C
114 lines
2.3 KiB
C
/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2002 Xodnizel
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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 2 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include "fceu-types.h"
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#include "video.h"
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#include "fceu.h"
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#include "general.h"
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#include "fceu-memory.h"
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#include "crc32.h"
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#include "state.h"
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#include "palette.h"
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#include "nsf.h"
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#include "input.h"
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#include "vsuni.h"
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uint8 *XBuf = NULL;
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uint8 *XDBuf = NULL;
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int show_crosshair = 0;
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void FCEU_KillVirtualVideo(void)
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{
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if (XBuf)
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free(XBuf);
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XBuf = 0;
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if (XDBuf)
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free(XDBuf);
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XDBuf = 0;
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}
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int FCEU_InitVirtualVideo(void)
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{
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/* 256 bytes per scanline, * 240 scanline maximum, +8 for alignment, */
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if (!XBuf)
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XBuf = (uint8*)(FCEU_malloc(256 * (256 + extrascanlines + 8)));
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if (!XDBuf)
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XDBuf = (uint8*)(FCEU_malloc(256 * (256 + extrascanlines + 8)));
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if (!XBuf || !XDBuf)
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return 0;
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memset(XBuf, 128, 256 * (256 + extrascanlines + 8));
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memset(XDBuf, 128, 256 * (256 + extrascanlines + 8));
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return 1;
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}
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static int howlong;
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static char errmsg[65];
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#include "drawing.h"
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void FCEUI_SaveSnapshot(void) { }
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void FCEU_PutImage(void)
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{
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if (GameInfo->type == GIT_NSF)
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DrawNSF(XBuf);
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else
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{
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if (GameInfo->type == GIT_VSUNI)
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FCEU_VSUniDraw(XBuf);
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}
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if (howlong) howlong--;
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if (show_crosshair)
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FCEU_DrawInput(XBuf);
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}
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void FCEU_PutImageDummy(void)
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{
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}
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void FCEU_DispMessage(char *format, ...)
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{
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va_list ap;
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va_start(ap, format);
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vsprintf(errmsg, format, ap);
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va_end(ap);
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howlong = 180;
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FCEUD_DispMessage(errmsg);
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}
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void FCEU_ResetMessages(void)
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{
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howlong = 180;
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}
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int SaveSnapshot(void)
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{
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return(0);
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}
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