mirror of
https://github.com/AppleWin/AppleWin.git
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1753 lines
58 KiB
C++
1753 lines
58 KiB
C++
/*
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AppleWin : An Apple //e emulator for Windows
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Copyright (C) 2010-2011, William S Simms
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Copyright (C) 2014-2015 Michael Pohoreski
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AppleWin 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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AppleWin 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
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along with AppleWin; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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// Includes
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#include "StdAfx.h"
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#include "AppleWin.h"
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#include "CPU.h"
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#include "Frame.h" // FRAMEBUFFER_W FRAMEBUFFER_H
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#include "Memory.h" // MemGetMainPtr() MemGetBankPtr()
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#include "Video.h" // g_pFramebufferbits
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#include "NTSC.h"
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#include "NTSC_CharSet.cpp"
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#define NTSC_REMOVE_WHITE_RINGING 1 // 0 = theoritical dimmed white has chroma, 1 = pure white without chroma tinting
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#define NTSC_REMOVE_BLACK_GHOSTING 1 // 1 = remove black smear/smudges carrying over
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#define DEBUG_PHASE_ZERO 0
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#define ALT_TABLE 0
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#if ALT_TABLE
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#include "ntsc_rgb.h"
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#endif
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//LPBYTE MemGetMainPtr(const WORD);
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//LPBYTE MemGetBankPtr(const UINT nBank);
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// Defines
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#define HGR_TEST_PATTERN 0
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#ifdef _MSC_VER
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#define INLINE __forceinline
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#else
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#define INLINE inline
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#endif
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#define PI 3.1415926535898f
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#define DEG_TO_RAD(x) (PI*(x)/180.f) // 2PI=360, PI=180,PI/2=90,PI/4=45
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#define RAD_45 PI*0.25f
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#define RAD_90 PI*0.5f
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#define RAD_360 PI*2.f
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// sadly float64 precision is needed
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#define real double
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//#define CYCLESTART (PI/4.f) // PI/4 = 45 degrees
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#define CYCLESTART (DEG_TO_RAD(45))
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// Types
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struct ColorSpace_PAL_t // Phase Amplitute Luma
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{
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float phase;
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float amp;
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float luma;
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};
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struct ColorSpace_YIQ_t
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{
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float y, i, q;
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};
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struct rgba_t
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{
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uint8_t r;
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uint8_t g;
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uint8_t b;
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uint8_t a;
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};
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struct ColorSpace_BGRA_t
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{
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union
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{
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uint32_t n;
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bgra_t bgra;
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rgba_t rgba;
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};
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};
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// Globals (Public) ___________________________________________________
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uint16_t g_nVideoClockVert = 0; // 9-bit: VC VB VA V5 V4 V3 V2 V1 V0 = 0 .. 262
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uint16_t g_nVideoClockHorz = 0; // 6-bit: H5 H4 H3 H2 H1 H0 = 0 .. 64, 25 >= visible (NB. final hpos is 2 cycles long, so a line is 65 cycles)
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// Globals (Private) __________________________________________________
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static int g_nVideoCharSet = 0;
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static int g_nVideoMixed = 0;
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static int g_nHiresPage = 1;
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static int g_nTextPage = 1;
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// Understanding the Apple II, Timing Generation and the Video Scanner, Pg 3-11
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// Vertical Scanning
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// Horizontal Scanning
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// "There are exactly 17030 (65 x 262) 6502 cycles in every television scan of an American Apple."
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#define VIDEO_SCANNER_MAX_HORZ 65 // TODO: use Video.cpp: kHClocks
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#define VIDEO_SCANNER_MAX_VERT 262 // TODO: use Video.cpp: kNTSCScanLines
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#define VIDEO_SCANNER_HORZ_COLORBURST_BEG 12
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#define VIDEO_SCANNER_HORZ_COLORBURST_END 16
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#define VIDEO_SCANNER_HORZ_START 25 // first displayable horz scanner index
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#define VIDEO_SCANNER_Y_MIXED 160 // num scanlins for mixed graphics + text
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#define VIDEO_SCANNER_Y_DISPLAY 192 // max displayable scanlines
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uint16_t g_aHorzClockMemAddress[VIDEO_SCANNER_MAX_HORZ];
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bgra_t *g_pVideoAddress = 0;
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bgra_t *g_pScanLines[VIDEO_SCANNER_Y_DISPLAY*2]; // To maintain the 280x192 aspect ratio for 560px width, we double every scan line -> 560x384
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static unsigned (*g_pHorzClockOffset)[VIDEO_SCANNER_MAX_HORZ] = 0;
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typedef void (*UpdateScreenFunc_t)(long);
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static UpdateScreenFunc_t g_apFuncVideoUpdateScanline[VIDEO_SCANNER_Y_DISPLAY];
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static UpdateScreenFunc_t g_pFuncUpdateTextScreen = 0; // updateScreenText40;
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static UpdateScreenFunc_t g_pFuncUpdateGraphicsScreen = 0; // updateScreenText40;
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static UpdateScreenFunc_t g_pFuncModeSwitchDelayed = 0;
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static UpdateScreenFunc_t g_aFuncUpdateHorz [VIDEO_SCANNER_MAX_HORZ]; // ANSI STORY: DGR80/TEXT80 vert/horz scrolll switches video mode mid-scan line!
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static uint32_t g_aHorzClockVideoMode [VIDEO_SCANNER_MAX_HORZ]; // ANSI STORY: DGR80/TEXT80 vert/horz scrolll switches video mode mid-scan line!
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typedef void (*UpdatePixelFunc_t)(uint16_t);
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static UpdatePixelFunc_t g_pFuncUpdateBnWPixel = 0; //updatePixelBnWMonitorSingleScanline;
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static UpdatePixelFunc_t g_pFuncUpdateHuePixel = 0; //updatePixelHueMonitorSingleScanline;
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static uint8_t g_nTextFlashCounter = 0;
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static uint16_t g_nTextFlashMask = 0;
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static unsigned g_aPixelMaskGR [ 16];
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static uint16_t g_aPixelDoubleMaskHGR[128]; // hgrbits -> g_aPixelDoubleMaskHGR: 7-bit mono 280 pixels to 560 pixel doubling
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static int g_nLastColumnPixelNTSC;
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static int g_nColorBurstPixels;
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#define INITIAL_COLOR_PHASE 0
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static int g_nColorPhaseNTSC = INITIAL_COLOR_PHASE;
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static int g_nSignalBitsNTSC = 0;
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#define NTSC_NUM_PHASES 4
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#define NTSC_NUM_SEQUENCES 4096
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const uint32_t ALPHA32_MASK = 0xFF000000; // Win32: aarrggbb
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/*extern*/ uint32_t g_nChromaSize = 0; // for NTSC_VideoGetChromaTable()
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static bgra_t g_aBnWMonitor [NTSC_NUM_SEQUENCES];
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static bgra_t g_aHueMonitor[NTSC_NUM_PHASES][NTSC_NUM_SEQUENCES];
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static bgra_t g_aBnwColorTV [NTSC_NUM_SEQUENCES];
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static bgra_t g_aHueColorTV[NTSC_NUM_PHASES][NTSC_NUM_SEQUENCES];
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// g_aBnWMonitor * g_nMonochromeRGB -> g_aBnWMonitorCustom
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// g_aBnwColorTV * g_nMonochromeRGB -> g_aBnWColorTVCustom
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static bgra_t g_aBnWMonitorCustom [NTSC_NUM_SEQUENCES];
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static bgra_t g_aBnWColorTVCustom [NTSC_NUM_SEQUENCES];
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#define CHROMA_ZEROS 2
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#define CHROMA_POLES 2
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#define CHROMA_GAIN 7.438011255f // Should this be 7.15909 MHz ?
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#define CHROMA_0 -0.7318893645f
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#define CHROMA_1 1.2336442711f
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//#define LUMGAIN 1.062635655e+01
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//#define LUMCOEF1 -0.3412038399
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//#define LUMCOEF2 0.9647813115
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#define LUMA_ZEROS 2
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#define LUMA_POLES 2
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#define LUMA_GAIN 13.71331570f // Should this be 14.318180 MHz ?
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#define LUMA_0 -0.3961075449f
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#define LUMA_1 1.1044202472f
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#define SIGNAL_ZEROS 2
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#define SIGNAL_POLES 2
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#define SIGNAL_GAIN 7.614490548f // Should this be 7.15909 MHz ?
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#define SIGNAL_0 -0.2718798058f
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#define SIGNAL_1 0.7465656072f
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// Tables
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static unsigned g_aClockVertOffsetsHGR[ VIDEO_SCANNER_MAX_VERT ] =
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{
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0x0000,0x0400,0x0800,0x0C00,0x1000,0x1400,0x1800,0x1C00,0x0080,0x0480,0x0880,0x0C80,0x1080,0x1480,0x1880,0x1C80,
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0x0100,0x0500,0x0900,0x0D00,0x1100,0x1500,0x1900,0x1D00,0x0180,0x0580,0x0980,0x0D80,0x1180,0x1580,0x1980,0x1D80,
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0x0200,0x0600,0x0A00,0x0E00,0x1200,0x1600,0x1A00,0x1E00,0x0280,0x0680,0x0A80,0x0E80,0x1280,0x1680,0x1A80,0x1E80,
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0x0300,0x0700,0x0B00,0x0F00,0x1300,0x1700,0x1B00,0x1F00,0x0380,0x0780,0x0B80,0x0F80,0x1380,0x1780,0x1B80,0x1F80,
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0x0000,0x0400,0x0800,0x0C00,0x1000,0x1400,0x1800,0x1C00,0x0080,0x0480,0x0880,0x0C80,0x1080,0x1480,0x1880,0x1C80,
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0x0100,0x0500,0x0900,0x0D00,0x1100,0x1500,0x1900,0x1D00,0x0180,0x0580,0x0980,0x0D80,0x1180,0x1580,0x1980,0x1D80,
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0x0200,0x0600,0x0A00,0x0E00,0x1200,0x1600,0x1A00,0x1E00,0x0280,0x0680,0x0A80,0x0E80,0x1280,0x1680,0x1A80,0x1E80,
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0x0300,0x0700,0x0B00,0x0F00,0x1300,0x1700,0x1B00,0x1F00,0x0380,0x0780,0x0B80,0x0F80,0x1380,0x1780,0x1B80,0x1F80,
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0x0000,0x0400,0x0800,0x0C00,0x1000,0x1400,0x1800,0x1C00,0x0080,0x0480,0x0880,0x0C80,0x1080,0x1480,0x1880,0x1C80,
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0x0100,0x0500,0x0900,0x0D00,0x1100,0x1500,0x1900,0x1D00,0x0180,0x0580,0x0980,0x0D80,0x1180,0x1580,0x1980,0x1D80,
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0x0200,0x0600,0x0A00,0x0E00,0x1200,0x1600,0x1A00,0x1E00,0x0280,0x0680,0x0A80,0x0E80,0x1280,0x1680,0x1A80,0x1E80,
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0x0300,0x0700,0x0B00,0x0F00,0x1300,0x1700,0x1B00,0x1F00,0x0380,0x0780,0x0B80,0x0F80,0x1380,0x1780,0x1B80,0x1F80,
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0x0000,0x0400,0x0800,0x0C00,0x1000,0x1400,0x1800,0x1C00,0x0080,0x0480,0x0880,0x0C80,0x1080,0x1480,0x1880,0x1C80,
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0x0100,0x0500,0x0900,0x0D00,0x1100,0x1500,0x1900,0x1D00,0x0180,0x0580,0x0980,0x0D80,0x1180,0x1580,0x1980,0x1D80,
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0x0200,0x0600,0x0A00,0x0E00,0x1200,0x1600,0x1A00,0x1E00,0x0280,0x0680,0x0A80,0x0E80,0x1280,0x1680,0x1A80,0x1E80,
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0x0300,0x0700,0x0B00,0x0F00,0x1300,0x1700,0x1B00,0x1F00,0x0380,0x0780,0x0B80,0x0F80,0x1380,0x1780,0x1B80,0x1F80,
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0x0B80,0x0F80,0x1380,0x1780,0x1B80,0x1F80
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};
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static unsigned g_aClockVertOffsetsTXT[33] =
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{
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0x0000,0x0080,0x0100,0x0180,0x0200,0x0280,0x0300,0x0380,
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0x0000,0x0080,0x0100,0x0180,0x0200,0x0280,0x0300,0x0380,
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0x0000,0x0080,0x0100,0x0180,0x0200,0x0280,0x0300,0x0380,
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0x0000,0x0080,0x0100,0x0180,0x0200,0x0280,0x0300,0x0380,
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0x380
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};
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static unsigned APPLE_IIP_HORZ_CLOCK_OFFSET[5][VIDEO_SCANNER_MAX_HORZ] =
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{
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{0x1068,0x1068,0x1069,0x106A,0x106B,0x106C,0x106D,0x106E,0x106F,
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0x1070,0x1071,0x1072,0x1073,0x1074,0x1075,0x1076,0x1077,
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0x1078,0x1079,0x107A,0x107B,0x107C,0x107D,0x107E,0x107F,
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0x0000,0x0001,0x0002,0x0003,0x0004,0x0005,0x0006,0x0007,
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0x0008,0x0009,0x000A,0x000B,0x000C,0x000D,0x000E,0x000F,
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0x0010,0x0011,0x0012,0x0013,0x0014,0x0015,0x0016,0x0017,
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0x0018,0x0019,0x001A,0x001B,0x001C,0x001D,0x001E,0x001F,
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0x0020,0x0021,0x0022,0x0023,0x0024,0x0025,0x0026,0x0027},
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{0x1010,0x1010,0x1011,0x1012,0x1013,0x1014,0x1015,0x1016,0x1017,
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0x1018,0x1019,0x101A,0x101B,0x101C,0x101D,0x101E,0x101F,
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0x1020,0x1021,0x1022,0x1023,0x1024,0x1025,0x1026,0x1027,
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0x0028,0x0029,0x002A,0x002B,0x002C,0x002D,0x002E,0x002F,
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0x0030,0x0031,0x0032,0x0033,0x0034,0x0035,0x0036,0x0037,
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0x0038,0x0039,0x003A,0x003B,0x003C,0x003D,0x003E,0x003F,
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0x0040,0x0041,0x0042,0x0043,0x0044,0x0045,0x0046,0x0047,
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0x0048,0x0049,0x004A,0x004B,0x004C,0x004D,0x004E,0x004F},
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{0x1038,0x1038,0x1039,0x103A,0x103B,0x103C,0x103D,0x103E,0x103F,
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0x1040,0x1041,0x1042,0x1043,0x1044,0x1045,0x1046,0x1047,
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0x1048,0x1049,0x104A,0x104B,0x104C,0x104D,0x104E,0x104F,
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0x0050,0x0051,0x0052,0x0053,0x0054,0x0055,0x0056,0x0057,
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0x0058,0x0059,0x005A,0x005B,0x005C,0x005D,0x005E,0x005F,
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0x0060,0x0061,0x0062,0x0063,0x0064,0x0065,0x0066,0x0067,
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0x0068,0x0069,0x006A,0x006B,0x006C,0x006D,0x006E,0x006F,
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0x0070,0x0071,0x0072,0x0073,0x0074,0x0075,0x0076,0x0077},
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{0x1060,0x1060,0x1061,0x1062,0x1063,0x1064,0x1065,0x1066,0x1067,
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0x1068,0x1069,0x106A,0x106B,0x106C,0x106D,0x106E,0x106F,
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0x1070,0x1071,0x1072,0x1073,0x1074,0x1075,0x1076,0x1077,
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0x0078,0x0079,0x007A,0x007B,0x007C,0x007D,0x007E,0x007F,
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0x0000,0x0001,0x0002,0x0003,0x0004,0x0005,0x0006,0x0007,
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0x0008,0x0009,0x000A,0x000B,0x000C,0x000D,0x000E,0x000F,
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0x0010,0x0011,0x0012,0x0013,0x0014,0x0015,0x0016,0x0017,
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0x0018,0x0019,0x001A,0x001B,0x001C,0x001D,0x001E,0x001F},
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{0x1060,0x1060,0x1061,0x1062,0x1063,0x1064,0x1065,0x1066,0x1067,
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0x1068,0x1069,0x106A,0x106B,0x106C,0x106D,0x106E,0x106F,
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0x1070,0x1071,0x1072,0x1073,0x1074,0x1075,0x1076,0x1077,
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0x0078,0x0079,0x007A,0x007B,0x007C,0x007D,0x007E,0x007F,
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0x0000,0x0001,0x0002,0x0003,0x0004,0x0005,0x0006,0x0007,
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0x0008,0x0009,0x000A,0x000B,0x000C,0x000D,0x000E,0x000F,
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0x0010,0x0011,0x0012,0x0013,0x0014,0x0015,0x0016,0x0017,
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0x0018,0x0019,0x001A,0x001B,0x001C,0x001D,0x001E,0x001F}
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};
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static unsigned APPLE_IIE_HORZ_CLOCK_OFFSET[5][VIDEO_SCANNER_MAX_HORZ] =
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{
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{0x0068,0x0068,0x0069,0x006A,0x006B,0x006C,0x006D,0x006E,0x006F, // bug? 0x106F
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0x0070,0x0071,0x0072,0x0073,0x0074,0x0075,0x0076,0x0077,
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0x0078,0x0079,0x007A,0x007B,0x007C,0x007D,0x007E,0x007F,
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0x0000,0x0001,0x0002,0x0003,0x0004,0x0005,0x0006,0x0007,
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0x0008,0x0009,0x000A,0x000B,0x000C,0x000D,0x000E,0x000F,
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0x0010,0x0011,0x0012,0x0013,0x0014,0x0015,0x0016,0x0017,
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0x0018,0x0019,0x001A,0x001B,0x001C,0x001D,0x001E,0x001F,
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0x0020,0x0021,0x0022,0x0023,0x0024,0x0025,0x0026,0x0027},
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{0x0010,0x0010,0x0011,0x0012,0x0013,0x0014,0x0015,0x0016,0x0017,
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0x0018,0x0019,0x001A,0x001B,0x001C,0x001D,0x001E,0x001F,
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0x0020,0x0021,0x0022,0x0023,0x0024,0x0025,0x0026,0x0027,
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0x0028,0x0029,0x002A,0x002B,0x002C,0x002D,0x002E,0x002F,
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0x0030,0x0031,0x0032,0x0033,0x0034,0x0035,0x0036,0x0037,
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0x0038,0x0039,0x003A,0x003B,0x003C,0x003D,0x003E,0x003F,
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0x0040,0x0041,0x0042,0x0043,0x0044,0x0045,0x0046,0x0047,
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0x0048,0x0049,0x004A,0x004B,0x004C,0x004D,0x004E,0x004F},
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|
|
{0x0038,0x0038,0x0039,0x003A,0x003B,0x003C,0x003D,0x003E,0x003F,
|
|
0x0040,0x0041,0x0042,0x0043,0x0044,0x0045,0x0046,0x0047,
|
|
0x0048,0x0049,0x004A,0x004B,0x004C,0x004D,0x004E,0x004F,
|
|
0x0050,0x0051,0x0052,0x0053,0x0054,0x0055,0x0056,0x0057,
|
|
0x0058,0x0059,0x005A,0x005B,0x005C,0x005D,0x005E,0x005F,
|
|
0x0060,0x0061,0x0062,0x0063,0x0064,0x0065,0x0066,0x0067,
|
|
0x0068,0x0069,0x006A,0x006B,0x006C,0x006D,0x006E,0x006F,
|
|
0x0070,0x0071,0x0072,0x0073,0x0074,0x0075,0x0076,0x0077},
|
|
|
|
{0x0060,0x0060,0x0061,0x0062,0x0063,0x0064,0x0065,0x0066,0x0067,
|
|
0x0068,0x0069,0x006A,0x006B,0x006C,0x006D,0x006E,0x006F,
|
|
0x0070,0x0071,0x0072,0x0073,0x0074,0x0075,0x0076,0x0077,
|
|
0x0078,0x0079,0x007A,0x007B,0x007C,0x007D,0x007E,0x007F,
|
|
0x0000,0x0001,0x0002,0x0003,0x0004,0x0005,0x0006,0x0007,
|
|
0x0008,0x0009,0x000A,0x000B,0x000C,0x000D,0x000E,0x000F,
|
|
0x0010,0x0011,0x0012,0x0013,0x0014,0x0015,0x0016,0x0017,
|
|
0x0018,0x0019,0x001A,0x001B,0x001C,0x001D,0x001E,0x001F},
|
|
|
|
{0x0060,0x0060,0x0061,0x0062,0x0063,0x0064,0x0065,0x0066,0x0067,
|
|
0x0068,0x0069,0x006A,0x006B,0x006C,0x006D,0x006E,0x006F,
|
|
0x0070,0x0071,0x0072,0x0073,0x0074,0x0075,0x0076,0x0077,
|
|
0x0078,0x0079,0x007A,0x007B,0x007C,0x007D,0x007E,0x007F,
|
|
0x0000,0x0001,0x0002,0x0003,0x0004,0x0005,0x0006,0x0007,
|
|
0x0008,0x0009,0x000A,0x000B,0x000C,0x000D,0x000E,0x000F,
|
|
0x0010,0x0011,0x0012,0x0013,0x0014,0x0015,0x0016,0x0017,
|
|
0x0018,0x0019,0x001A,0x001B,0x001C,0x001D,0x001E,0x001F}
|
|
};
|
|
|
|
/*
|
|
http://www.kreativekorp.com/miscpages/a2info/munafo.shtml
|
|
|
|
"Primary" lo-res colors
|
|
Color GR Duty cycle Phase
|
|
======================================
|
|
Red COLOR=1 45 to 135 90
|
|
Dark-blue COLOR=2 315 to 45 0
|
|
Dark-green COLOR=4 225 to 315 270
|
|
Brown COLOR=8 135 to 225 180
|
|
*/
|
|
ColorSpace_PAL_t aPaletteYIQ[ 16 ] =
|
|
{ // Lo Hi Dh
|
|
{ 0, 0, 0 } // 0 0 Black
|
|
,{ 90, 60, 25 } // 1 1 Red
|
|
,{ 0, 60, 25 } // 2 8 Dark Blue
|
|
,{ 45,100, 50 } // 3 2 9 Purple
|
|
,{270, 60, 25 } // 4 Dark Green
|
|
,{ 0, 0, 50 } // 5 Grey
|
|
,{315,100, 50 } // 6 Medium Blue
|
|
,{ 0, 60, 75 } // 7 Light Blue
|
|
,{180, 60, 25 } // 8 Brown
|
|
,{135,100, 50 } // 9 Orange
|
|
,{ 0, 0, 50 } // 10
|
|
,{ 90, 60, 75 } // 11 Pink
|
|
,{225,100, 50 } // 12 Light Green
|
|
,{180, 60, 75 } // 13 Yellow
|
|
,{270, 60, 75} // 14 Aqua
|
|
,{ 0, 0,100 } // 15 White
|
|
};
|
|
|
|
// purple HCOLOR=2 45 100 50 255 68 253
|
|
// orange HCOLOR=5 135 100 50 255 106 60
|
|
// green HCOLOR=1 225 100 50 20 245 60
|
|
// blue HCOLOR=6 315 100 50 20 207 253
|
|
|
|
rgba_t aPaletteRGB[ 16 ] =
|
|
{
|
|
{ 0, 0, 0 } // 0
|
|
,{ 227, 30, 96 } // 1
|
|
,{ 96, 78, 189 } // 2
|
|
,{ 255, 68, 253 } // 3
|
|
,{ 0, 163, 96 } // 4
|
|
,{ 156, 156, 156 } // 5
|
|
,{ 20, 207, 253 } // 6
|
|
,{ 208, 195, 255 } // 7
|
|
,{ 96, 114, 3 } // 8
|
|
,{ 255, 106, 60 } // 9
|
|
,{ 156, 156, 156 } // 10
|
|
,{ 255, 160, 208 } // 11
|
|
,{ 20, 245, 60 } // 12
|
|
,{ 208, 221, 141 } // 13
|
|
,{ 114, 255, 208 } // 14
|
|
,{ 255, 255, 255 } // 15
|
|
};
|
|
|
|
|
|
// Prototypes
|
|
// prototype from CPU.h
|
|
//unsigned char CpuRead(unsigned short addr, unsigned long uExecutedCycles);
|
|
// prototypes from Memory.h
|
|
//unsigned char * MemGetAuxPtr (unsigned short);
|
|
//unsigned char * MemGetMainPtr (unsigned short);
|
|
INLINE float clampZeroOne( const float & x );
|
|
INLINE uint8_t getCharSetBits( const int iChar );
|
|
INLINE uint16_t getLoResBits( uint8_t iByte );
|
|
INLINE uint32_t getScanlineColor( const uint16_t signal, const bgra_t *pTable );
|
|
INLINE uint32_t* getScanlineNext1Address();
|
|
INLINE uint32_t* getScanlinePrev1Address();
|
|
INLINE uint32_t* getScanlinePrev2Address();
|
|
INLINE uint32_t* getScanlineThis0Address();
|
|
INLINE void updateColorPhase();
|
|
INLINE void updateFlashRate();
|
|
INLINE void updateFramebufferColorTVSingleScanline( uint16_t signal, bgra_t *pTable );
|
|
INLINE void updateFramebufferColorTVDoubleScanline( uint16_t signal, bgra_t *pTable );
|
|
INLINE void updateFramebufferMonitorSingleScanline( uint16_t signal, bgra_t *pTable );
|
|
INLINE void updateFramebufferMonitorDoubleScanline( uint16_t signal, bgra_t *pTable );
|
|
INLINE void updatePixels( uint16_t bits );
|
|
INLINE bool updateScanLineModeSwitch( long cycles6502, UpdateScreenFunc_t self );
|
|
INLINE void updateVideoScannerHorzEOL();
|
|
INLINE void updateVideoScannerAddress();
|
|
INLINE uint16_t updateVideoScannerAddressTXT();
|
|
INLINE uint16_t updateVideoScannerAddressHGR();
|
|
|
|
static void initChromaPhaseTables();
|
|
static real initFilterChroma (real z);
|
|
static real initFilterLuma0 (real z);
|
|
static real initFilterLuma1 (real z);
|
|
static real initFilterSignal(real z);
|
|
static void initPixelDoubleMasks(void);
|
|
static void updateMonochromeTables( uint16_t r, uint16_t g, uint16_t b );
|
|
|
|
static void updatePixelBnWColorTVSingleScanline( uint16_t compositeSignal );
|
|
static void updatePixelBnWColorTVDoubleScanline( uint16_t compositeSignal );
|
|
static void updatePixelBnWMonitorSingleScanline( uint16_t compositeSignal );
|
|
static void updatePixelBnWMonitorDoubleScanline( uint16_t compositeSignal );
|
|
static void updatePixelHueColorTVSingleScanline( uint16_t compositeSignal );
|
|
static void updatePixelHueColorTVDoubleScanline( uint16_t compositeSignal );
|
|
static void updatePixelHueMonitorSingleScanline( uint16_t compositeSignal );
|
|
static void updatePixelHueMonitorDoubleScanline( uint16_t compositeSignal );
|
|
|
|
static void updateScreenDoubleHires40( long cycles6502 );
|
|
static void updateScreenDoubleHires80( long cycles6502 );
|
|
static void updateScreenDoubleLores40( long cycles6502 );
|
|
static void updateScreenDoubleLores80( long cycles6502 );
|
|
static void updateScreenSingleHires40( long cycles6502 );
|
|
static void updateScreenSingleLores40( long cycles6502 );
|
|
static void updateScreenText40 ( long cycles6502 );
|
|
static void updateScreenText80 ( long cycles6502 );
|
|
|
|
|
|
//===========================================================================
|
|
inline float clampZeroOne( const float & x )
|
|
{
|
|
if (x < 0.f) return 0.f;
|
|
if (x > 1.f) return 1.f;
|
|
/* ...... */ return x;
|
|
}
|
|
|
|
//===========================================================================
|
|
inline uint8_t getCharSetBits(int iChar)
|
|
{
|
|
return csbits[g_nVideoCharSet][iChar][g_nVideoClockVert & 7];
|
|
}
|
|
|
|
//===========================================================================
|
|
inline uint16_t getLoResBits( uint8_t iByte )
|
|
{
|
|
return g_aPixelMaskGR[ (iByte >> (g_nVideoClockVert & 4)) & 0xF ];
|
|
}
|
|
|
|
//===========================================================================
|
|
inline uint32_t getScanlineColor( const uint16_t signal, const bgra_t *pTable )
|
|
{
|
|
g_nSignalBitsNTSC = ((g_nSignalBitsNTSC << 1) | signal) & 0xFFF; // 14-bit
|
|
return *(uint32_t*) &pTable[ g_nSignalBitsNTSC ];
|
|
}
|
|
|
|
//===========================================================================
|
|
inline uint32_t* getScanlineNext1Address()
|
|
{
|
|
return (uint32_t*) (g_pVideoAddress - 1*FRAMEBUFFER_W);
|
|
}
|
|
|
|
//===========================================================================
|
|
inline uint32_t* getScanlinePrev1Address()
|
|
{
|
|
return (uint32_t*) (g_pVideoAddress + 1*FRAMEBUFFER_W);
|
|
}
|
|
|
|
//===========================================================================
|
|
inline uint32_t* getScanlinePrev2Address()
|
|
{
|
|
return (uint32_t*) (g_pVideoAddress + 2*FRAMEBUFFER_W);
|
|
}
|
|
|
|
//===========================================================================
|
|
inline uint32_t* getScanlineThis0Address()
|
|
{
|
|
return (uint32_t*) g_pVideoAddress;
|
|
}
|
|
|
|
//===========================================================================
|
|
inline void updateColorPhase()
|
|
{
|
|
g_nColorPhaseNTSC++;
|
|
g_nColorPhaseNTSC &= 3;
|
|
}
|
|
|
|
//===========================================================================
|
|
inline void updateFlashRate() // TODO: Flash rate should be constant (regardless of CPU speed)
|
|
{
|
|
// BUG: In unthrottled CPU mode, flash rate should not be affected
|
|
|
|
// Flash rate:
|
|
// . NTSC : 60/16 ~= 4Hz
|
|
// . PAL : 50/16 ~= 3Hz
|
|
if ((++g_nTextFlashCounter & 0xF) == 0)
|
|
g_nTextFlashMask ^= -1; // 16-bits
|
|
|
|
// The old way to handle flashing was
|
|
// if ((SW_TEXT || SW_MIXED) ) // && !SW_80COL) // FIX: FLASH 80-Column
|
|
// g_nTextFlashMask = true;
|
|
// The new way is to check the active char set, inlined:
|
|
// if (0 == g_nVideoCharSet && 0x40 == (m & 0xC0)) // Flash only if mousetext not active
|
|
}
|
|
|
|
#if 0
|
|
#define updateFramebufferMonitorSingleScanline(signal,table) \
|
|
do { \
|
|
uint32_t *cp, *mp; \
|
|
g_nSignalBitsNTSC = ((g_nSignalBitsNTSC << 1) | signal) & 0xFFF; \
|
|
cp = (uint32_t*) &table[g_nSignalBitsNTSC]; \
|
|
*(uint32_t*)g_pVideoAddress = *cp; \
|
|
mp = (uint32_t*)(g_pVideoAddress - FRAMEBUFFER_W); \
|
|
*mp = ((*cp & 0x00fcfcfc) >> 2) | ALPHA32_MASK; \
|
|
g_pVideoAddress++; \
|
|
} while(0)
|
|
|
|
// prevp is never used nor blended with!
|
|
#define updateFramebufferColorTVSingleScanline(signal,table) \
|
|
do { \
|
|
uint32_t ntscp, prevp, betwp; \
|
|
uint32_t *prevlin, *between; \
|
|
g_nSignalBitsNTSC = ((g_nSignalBitsNTSC << 1) | signal) & 0xFFF; \
|
|
prevlin = (uint32_t*)(g_pVideoAddress + 2*FRAMEBUFFER_W); \
|
|
between = (uint32_t*)(g_pVideoAddress + 1*FRAMEBUFFER_W); \
|
|
ntscp = *(uint32_t*) &table[g_nSignalBitsNTSC]; /* raw current NTSC color */ \
|
|
prevp = *prevlin; \
|
|
betwp = ntscp - ((ntscp & 0x00fcfcfc) >> 2); \
|
|
*between = betwp | ALPHA32_MASK; \
|
|
*(uint32_t*)g_pVideoAddress = ntscp; \
|
|
g_pVideoAddress++; \
|
|
} while(0)
|
|
|
|
#define updateFramebufferMonitorDoubleScanline(signal,table) \
|
|
do { \
|
|
uint32_t *cp, *mp; \
|
|
g_nSignalBitsNTSC = ((g_nSignalBitsNTSC << 1) | signal) & 0xFFF; \
|
|
cp = (uint32_t*) &table[g_nSignalBitsNTSC]; \
|
|
mp = (uint32_t*)(g_pVideoAddress - FRAMEBUFFER_W); \
|
|
*(uint32_t*)g_pVideoAddress = *mp = *cp; \
|
|
g_pVideoAddress++; \
|
|
} while(0)
|
|
|
|
#define updateFramebufferColorTVDoubleScanline(signal,table) \
|
|
do { \
|
|
uint32_t ntscp, prevp, betwp; \
|
|
uint32_t *prevlin, *between; \
|
|
g_nSignalBitsNTSC = ((g_nSignalBitsNTSC << 1) | signal) & 0xFFF; \
|
|
prevlin = (uint32_t*)(g_pVideoAddress + 2*FRAMEBUFFER_W); \
|
|
between = (uint32_t*)(g_pVideoAddress + 1*FRAMEBUFFER_W); \
|
|
ntscp = *(uint32_t*) &table[g_nSignalBitsNTSC]; /* raw current NTSC color */ \
|
|
prevp = *prevlin; \
|
|
betwp = ((ntscp & 0x00fefefe) >> 1) + ((prevp & 0x00fefefe) >> 1); \
|
|
*between = betwp | ALPHA32_MASK; \
|
|
*(uint32_t*)g_pVideoAddress = ntscp; \
|
|
g_pVideoAddress++; \
|
|
} while(0)
|
|
#else
|
|
|
|
//===========================================================================
|
|
inline void updateFramebufferColorTVSingleScanline( uint16_t signal, bgra_t *pTable )
|
|
{
|
|
/* */ uint32_t *pLine0Address = getScanlineThis0Address();
|
|
/* */ uint32_t *pLine1Address = getScanlinePrev1Address();
|
|
/* */ uint32_t *pLine2Address = getScanlinePrev2Address();
|
|
|
|
const uint32_t color0 = getScanlineColor( signal, pTable );
|
|
const uint32_t color2 = *pLine2Address;
|
|
// const uint32_t color1 = color0 - ((color2 & 0x00fcfcfc) >> 2); // BUG? color0 - color0? not color0-color2?
|
|
// TC: The above operation "color0 - ((color2 & 0x00fcfcfc) >> 2)" causes underflow, so I've recoded to clamp on underflow:
|
|
uint32_t color1;
|
|
{
|
|
int r=(color0>>16)&0xff, g=(color0>>8)&0xff, b=color0&0xff;
|
|
uint32_t color2_prime = (color2 & 0x00fcfcfc) >> 2;
|
|
r -= (color2_prime>>16)&0xff; if (r<0) r=0; // clamp to 0 on underflow
|
|
g -= (color2_prime>>8)&0xff; if (g<0) g=0; // clamp to 0 on underflow
|
|
b -= (color2_prime)&0xff; if (b<0) b=0; // clamp to 0 on underflow
|
|
color1 = (r<<16)|(g<<8)|(b);
|
|
}
|
|
|
|
/* */ *pLine1Address = color1 | ALPHA32_MASK;
|
|
/* */ *pLine0Address = color0;
|
|
/* */ g_pVideoAddress++;
|
|
}
|
|
|
|
//===========================================================================
|
|
inline void updateFramebufferColorTVDoubleScanline( uint16_t signal, bgra_t *pTable )
|
|
{
|
|
/* */ uint32_t *pLine0Address = getScanlineThis0Address();
|
|
/* */ uint32_t *pLine1Address = getScanlinePrev1Address();
|
|
const uint32_t *pLine2Address = getScanlinePrev2Address();
|
|
|
|
const uint32_t color0 = getScanlineColor( signal, pTable );
|
|
const uint32_t color2 = *pLine2Address;
|
|
const uint32_t color1 = ((color0 & 0x00fefefe) >> 1) + ((color2 & 0x00fefefe) >> 1); // 50% Blend
|
|
|
|
/* */ *pLine1Address = color1 | ALPHA32_MASK;
|
|
/* */ *pLine0Address = color0;
|
|
/* */ g_pVideoAddress++;
|
|
}
|
|
|
|
//===========================================================================
|
|
inline void updateFramebufferMonitorSingleScanline( uint16_t signal, bgra_t *pTable )
|
|
{
|
|
/* */ uint32_t *pLine0Address = getScanlineThis0Address();
|
|
/* */ uint32_t *pLine1Address = getScanlineNext1Address();
|
|
const uint32_t color0 = getScanlineColor( signal, pTable );
|
|
const uint32_t color1 = ((color0 & 0x00fcfcfc) >> 2); // 25% Blend (original)
|
|
// const uint32_t color1 = ((color0 & 0x00fefefe) >> 1); // 50% Blend -- looks OK most of the time; Archon looks poor
|
|
|
|
/* */ *pLine1Address = color1 | ALPHA32_MASK;
|
|
/* */ *pLine0Address = color0;
|
|
/* */ g_pVideoAddress++;
|
|
}
|
|
|
|
//===========================================================================
|
|
inline void updateFramebufferMonitorDoubleScanline( uint16_t signal, bgra_t *pTable )
|
|
{
|
|
/* */ uint32_t *pLine0Address = getScanlineThis0Address();
|
|
/* */ uint32_t *pLine1Address = getScanlineNext1Address();
|
|
const uint32_t color0 = getScanlineColor( signal, pTable );
|
|
|
|
/* */ *pLine1Address = color0;
|
|
/* */ *pLine0Address = color0;
|
|
/* */ g_pVideoAddress++;
|
|
}
|
|
#endif
|
|
|
|
//===========================================================================
|
|
inline void updatePixels( uint16_t bits )
|
|
{
|
|
if (g_nColorBurstPixels < 2)
|
|
{
|
|
/* #1 of 7 */
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
/* #2 of 7 */
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
/* #3 of 7 */
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
/* #4 of 7 */
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
/* #5 of 7 */
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
/* #6 of 7 */
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
/* #7 of 7 */
|
|
g_pFuncUpdateBnWPixel(bits & 1); bits >>= 1;
|
|
g_pFuncUpdateBnWPixel(bits & 1);
|
|
g_nLastColumnPixelNTSC=bits& 1 ; bits >>= 1;
|
|
}
|
|
else
|
|
{
|
|
/* #1 of 7 */ // abcd efgh ijkl mnop
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0abc defg hijk lmno
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 00ab cdef ghi jklmn
|
|
/* #2 of 7 */
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 000a bcde fghi jklm
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 abcd efgh ijkl
|
|
/* #3 of 7 */
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 0abc defg hijk
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 00ab cdef ghij
|
|
/* #4 of 7 */
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 000a bcde fghi
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 0000 abcd efgh
|
|
/* #5 of 7 */
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 0000 0abc defg
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 0000 00ab cdef
|
|
/* #6 of 7 */
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 0000 000a bcde
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 0000 0000 abcd
|
|
/* #7 of 7 */
|
|
g_pFuncUpdateHuePixel(bits & 1); bits >>= 1; // 0000 0000 0000 0abc
|
|
g_pFuncUpdateHuePixel(bits & 1);
|
|
g_nLastColumnPixelNTSC=bits& 1 ; bits >>= 1; // 0000 0000 0000 00ab
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
inline bool updateScanLineModeSwitch( long cycles6502, UpdateScreenFunc_t self )
|
|
{
|
|
bool bBail = false;
|
|
if( g_aHorzClockVideoMode[ g_nVideoClockHorz ] != g_aHorzClockVideoMode[ g_nVideoClockHorz+1 ] && !g_nVideoMixed ) // !g_nVideoMixed for "Rainbow"
|
|
{
|
|
UpdateScreenFunc_t pFunc = g_aFuncUpdateHorz[ g_nVideoClockHorz ];
|
|
if( pFunc && pFunc != self )
|
|
{
|
|
g_pFuncUpdateGraphicsScreen = pFunc;
|
|
// g_pFuncUpdateTextScreen = pFunc; // No, as we can't break mixed mode for "Rainbow"
|
|
pFunc( cycles6502 );
|
|
bBail = true;
|
|
}
|
|
}
|
|
|
|
return bBail;
|
|
}
|
|
|
|
//===========================================================================
|
|
inline void updateVideoScannerHorzEOL()
|
|
{
|
|
if (VIDEO_SCANNER_MAX_HORZ == ++g_nVideoClockHorz)
|
|
{
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
//VIDEO_DRAW_ENDLINE();
|
|
if (g_nColorBurstPixels < 2)
|
|
{
|
|
// NOTE: This writes out-of-bounds for a 560x384 framebuffer
|
|
g_pFuncUpdateBnWPixel(0);
|
|
g_pFuncUpdateBnWPixel(0);
|
|
g_pFuncUpdateBnWPixel(0);
|
|
g_pFuncUpdateBnWPixel(0);
|
|
}
|
|
else
|
|
{
|
|
// NOTE: This writes out-of-bounds for a 560x384 framebuffer
|
|
g_pFuncUpdateHuePixel(0);
|
|
g_pFuncUpdateHuePixel(0);
|
|
g_pFuncUpdateHuePixel(0);
|
|
g_pFuncUpdateHuePixel(g_nLastColumnPixelNTSC); // BUGFIX: ARCHON: green fringe on end of line
|
|
}
|
|
}
|
|
|
|
g_nVideoClockHorz = 0;
|
|
|
|
if (++g_nVideoClockVert == VIDEO_SCANNER_MAX_VERT)
|
|
{
|
|
g_nVideoClockVert = 0;
|
|
|
|
updateFlashRate();
|
|
//VideoRefreshScreen(0); // ContinueExecution() calls VideoRefreshScreen(0) every dwClksPerFrame (17030)
|
|
}
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
updateVideoScannerAddress();
|
|
}
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
inline void updateVideoScannerAddress()
|
|
{
|
|
g_pVideoAddress = g_pScanLines[2*g_nVideoClockVert];
|
|
g_nColorPhaseNTSC = INITIAL_COLOR_PHASE;
|
|
g_nLastColumnPixelNTSC = 0;
|
|
g_nSignalBitsNTSC = 0;
|
|
|
|
// ANSI STORY: clear mode and pointer to draw func
|
|
memset( g_aFuncUpdateHorz , 0, sizeof( g_aFuncUpdateHorz ) );
|
|
memset( g_aHorzClockVideoMode, 0, sizeof( g_aHorzClockVideoMode ) );
|
|
|
|
g_aFuncUpdateHorz[0] = g_pFuncUpdateGraphicsScreen;
|
|
}
|
|
|
|
//===========================================================================
|
|
INLINE uint16_t updateVideoScannerAddressTXT()
|
|
{
|
|
return g_aHorzClockMemAddress[ g_nVideoClockHorz ] = (g_aClockVertOffsetsTXT[g_nVideoClockVert/8] +
|
|
g_pHorzClockOffset [g_nVideoClockVert/64][g_nVideoClockHorz] + (g_nTextPage * 0x400));
|
|
}
|
|
|
|
//===========================================================================
|
|
INLINE uint16_t updateVideoScannerAddressHGR()
|
|
{
|
|
// BUG? g_pHorzClockOffset
|
|
return g_aHorzClockMemAddress[ g_nVideoClockHorz ] = (g_aClockVertOffsetsHGR[g_nVideoClockVert ] +
|
|
APPLE_IIE_HORZ_CLOCK_OFFSET[g_nVideoClockVert/64][g_nVideoClockHorz] + (g_nHiresPage * 0x2000));
|
|
}
|
|
|
|
|
|
// Non-Inline _________________________________________________________
|
|
|
|
// Build the 4 phase chroma lookup table
|
|
// The YI'Q' colors are hard-coded
|
|
//===========================================================================
|
|
static void initChromaPhaseTables (void)
|
|
{
|
|
int phase,s,t,n;
|
|
real z,y0,y1,c,i,q;
|
|
real phi,zz;
|
|
float brightness;
|
|
double r64,g64,b64;
|
|
float r32,g32,b32;
|
|
|
|
for (phase = 0; phase < 4; ++phase)
|
|
{
|
|
phi = (phase * RAD_90) + CYCLESTART;
|
|
for (s = 0; s < NTSC_NUM_SEQUENCES; ++s)
|
|
{
|
|
t = s;
|
|
y0 = y1 = c = i = q = 0.0;
|
|
|
|
for (n = 0; n < 12; ++n)
|
|
{
|
|
z = (real)(0 != (t & 0x800));
|
|
t = t << 1;
|
|
|
|
for(int k = 0; k < 2; k++ )
|
|
{
|
|
//z = z * 1.25;
|
|
zz = initFilterSignal(z);
|
|
c = initFilterChroma(zz); // "Mostly" correct _if_ CYCLESTART = PI/4 = 45 degrees
|
|
y0 = initFilterLuma0 (zz);
|
|
y1 = initFilterLuma1 (zz - c);
|
|
|
|
c = c * 2.f;
|
|
i = i + (c * cos(phi) - i) / 8.f;
|
|
q = q + (c * sin(phi) - q) / 8.f;
|
|
|
|
phi += RAD_45;
|
|
} // k
|
|
} // samples
|
|
|
|
brightness = clampZeroOne( (float)z );
|
|
g_aBnWMonitor[s].b = (uint8_t)(brightness * 255);
|
|
g_aBnWMonitor[s].g = (uint8_t)(brightness * 255);
|
|
g_aBnWMonitor[s].r = (uint8_t)(brightness * 255);
|
|
g_aBnWMonitor[s].a = 255;
|
|
|
|
brightness = clampZeroOne( (float)y1);
|
|
g_aBnwColorTV[s].b = (uint8_t)(brightness * 255);
|
|
g_aBnwColorTV[s].g = (uint8_t)(brightness * 255);
|
|
g_aBnwColorTV[s].r = (uint8_t)(brightness * 255);
|
|
g_aBnwColorTV[s].a = 255;
|
|
|
|
/*
|
|
YI'V' to RGB
|
|
|
|
[r g b] = [y i v][ 1 1 1 ]
|
|
[0.956 -0.272 -1.105]
|
|
[0.621 -0.647 1.702]
|
|
|
|
[r] [1 0.956 0.621][y]
|
|
[g] = [1 -0.272 -0.647][i]
|
|
[b] [1 -1.105 1.702][v]
|
|
*/
|
|
#define I_TO_R 0.956f
|
|
#define I_TO_G -0.272f
|
|
#define I_TO_B -1.105f
|
|
|
|
#define Q_TO_R 0.621f
|
|
#define Q_TO_G -0.647f
|
|
#define Q_TO_B 1.702f
|
|
|
|
r64 = y0 + (I_TO_R * i) + (Q_TO_R * q);
|
|
g64 = y0 + (I_TO_G * i) + (Q_TO_G * q);
|
|
b64 = y0 + (I_TO_B * i) + (Q_TO_B * q);
|
|
|
|
b32 = clampZeroOne( (float)b64);
|
|
g32 = clampZeroOne( (float)g64);
|
|
r32 = clampZeroOne( (float)r64);
|
|
|
|
#if NTSC_REMOVE_WHITE_RINGING
|
|
if( (s & 15) == 15 )
|
|
{
|
|
r32 = 1;
|
|
g32 = 1;
|
|
b32 = 1;
|
|
}
|
|
#endif
|
|
|
|
#if NTSC_REMOVE_BLACK_GHOSTING
|
|
if( (s & 15) == 0 )
|
|
{
|
|
r32 = 0;
|
|
g32 = 0;
|
|
b32 = 0;
|
|
}
|
|
#endif
|
|
|
|
g_aHueMonitor[phase][s].b = (uint8_t)(b32 * 255);
|
|
g_aHueMonitor[phase][s].g = (uint8_t)(g32 * 255);
|
|
g_aHueMonitor[phase][s].r = (uint8_t)(r32 * 255);
|
|
g_aHueMonitor[phase][s].a = 255;
|
|
|
|
r64 = y1 + (I_TO_R * i) + (Q_TO_R * q);
|
|
g64 = y1 + (I_TO_G * i) + (Q_TO_G * q);
|
|
b64 = y1 + (I_TO_B * i) + (Q_TO_B * q);
|
|
|
|
b32 = clampZeroOne( (float)b64 );
|
|
g32 = clampZeroOne( (float)g64 );
|
|
r32 = clampZeroOne( (float)r64 );
|
|
|
|
#if NTSC_REMOVE_WHITE_RINGING
|
|
if( (s & 15) == 15 )
|
|
{
|
|
r32 = 1;
|
|
g32 = 1;
|
|
b32 = 1;
|
|
}
|
|
#endif
|
|
|
|
#if NTSC_REMOVE_BLACK_GHOSTING
|
|
if( (s & 15) == 0 )
|
|
{
|
|
r32 = 0;
|
|
g32 = 0;
|
|
b32 = 0;
|
|
}
|
|
#endif
|
|
|
|
g_aHueColorTV[phase][s].b = (uint8_t)(b32 * 255);
|
|
g_aHueColorTV[phase][s].g = (uint8_t)(g32 * 255);
|
|
g_aHueColorTV[phase][s].r = (uint8_t)(r32 * 255);
|
|
g_aHueColorTV[phase][s].a = 255;
|
|
}
|
|
}
|
|
|
|
#if DEBUG_PHASE_ZERO
|
|
uint8_t *p = (uint8_t*)g_aHueMonitor;
|
|
*p++ = 0xFF;
|
|
*p++ = 0x00;
|
|
*p++ = 0x00;
|
|
*p++ = 0xFF;
|
|
#endif
|
|
|
|
}
|
|
|
|
/*
|
|
http://www-users.cs.york.ac.uk/~fisher/mkfilter/trad.html
|
|
Sample Rate: ???
|
|
Corner Freq 1: ?
|
|
Corner Freq 2: ?
|
|
|
|
double ButterworthLowPass2( double a, double b, double g, double z )
|
|
{
|
|
const int POLES=2;
|
|
static double x[POLES+1];
|
|
static double y[POLES+1];
|
|
|
|
for( int iPole = 0; iPole < POLES; iPole++ )
|
|
{
|
|
x[iPole] = x[iPole+1];
|
|
y[iPole] = y[iPole+1];
|
|
}
|
|
|
|
x[POLES] = z / g;
|
|
y[POLES] = x[0] + x[2] + (2.f*x[1]) + (a*y[0]) + (b*y[1]);
|
|
|
|
return y[2];
|
|
}
|
|
|
|
*/
|
|
|
|
// What filter is this ??
|
|
// Filter Order: 2 -> poles for low pass
|
|
//===========================================================================
|
|
static real initFilterChroma (real z)
|
|
{
|
|
static real x[CHROMA_ZEROS + 1] = {0,0,0};
|
|
static real y[CHROMA_POLES + 1] = {0,0,0};
|
|
|
|
x[0] = x[1]; x[1] = x[2]; x[2] = z / CHROMA_GAIN;
|
|
y[0] = y[1]; y[1] = y[2]; y[2] = -x[0] + x[2] + (CHROMA_0*y[0]) + (CHROMA_1*y[1]); // inverted x[0]
|
|
|
|
return y[2];
|
|
}
|
|
|
|
// Butterworth Lowpass digital filter
|
|
// Filter Order: 2 -> poles for low pass
|
|
//===========================================================================
|
|
static real initFilterLuma0 (real z)
|
|
{
|
|
static real x[LUMA_ZEROS + 1] = { 0,0,0 };
|
|
static real y[LUMA_POLES + 1] = { 0,0,0 };
|
|
|
|
x[0] = x[1]; x[1] = x[2]; x[2] = z / LUMA_GAIN;
|
|
y[0] = y[1]; y[1] = y[2]; y[2] = x[0] + x[2] + (2.f*x[1]) + (LUMA_0*y[0]) + (LUMA_1*y[1]);
|
|
|
|
return y[2];
|
|
}
|
|
|
|
// Butterworth Lowpass digital filter
|
|
// Filter Order: 2 -> poles for low pass
|
|
//===========================================================================
|
|
static real initFilterLuma1 (real z)
|
|
{
|
|
static real x[LUMA_ZEROS + 1] = { 0,0,0};
|
|
static real y[LUMA_POLES + 1] = { 0,0,0};
|
|
|
|
x[0] = x[1]; x[1] = x[2]; x[2] = z / LUMA_GAIN;
|
|
y[0] = y[1]; y[1] = y[2]; y[2] = x[0] + x[2] + (2.f*x[1]) + (LUMA_0*y[0]) + (LUMA_1*y[1]);
|
|
|
|
return y[2];
|
|
}
|
|
|
|
// Butterworth Lowpass digital filter
|
|
// Filter Order: 2 -> poles for low pass
|
|
//===========================================================================
|
|
static real initFilterSignal (real z)
|
|
{
|
|
static real x[SIGNAL_ZEROS + 1] = { 0,0,0 };
|
|
static real y[SIGNAL_POLES + 1] = { 0,0,0 };
|
|
|
|
x[0] = x[1]; x[1] = x[2]; x[2] = z / SIGNAL_GAIN;
|
|
y[0] = y[1]; y[1] = y[2]; y[2] = x[0] + x[2] + (2.f*x[1]) + (SIGNAL_0*y[0]) + (SIGNAL_1*y[1]);
|
|
|
|
return y[2];
|
|
}
|
|
|
|
//===========================================================================
|
|
static void initPixelDoubleMasks (void)
|
|
{
|
|
/*
|
|
Convert 7-bit monochrome luminance to 14-bit double pixel luminance
|
|
Chroma will be applied later based on the color phase in updatePixelHueMonitorDoubleScanline( luminanceBit )
|
|
0x001 -> 0x0003
|
|
0x002 -> 0x000C
|
|
0x004 -> 0x0030
|
|
0x008 -> 0x00C0
|
|
: -> :
|
|
0x100 -> 0x4000
|
|
*/
|
|
for (uint8_t byte = 0; byte < 0x80; byte++ ) // Optimization: hgrbits second 128 entries are mirror of first 128
|
|
for (uint8_t bits = 0; bits < 7; bits++ ) // high bit = half pixel shift; pre-optimization: bits < 8
|
|
if (byte & (1 << bits)) // pow2 mask
|
|
g_aPixelDoubleMaskHGR[byte] |= 3 << (bits*2);
|
|
|
|
for ( uint16_t color = 0; color < 16; color++ )
|
|
g_aPixelMaskGR[ color ] = (color << 12) | (color << 8) | (color << 4) | (color << 0);
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateMonochromeTables( uint16_t r, uint16_t g, uint16_t b )
|
|
{
|
|
for( int iSample = 0; iSample < NTSC_NUM_SEQUENCES; iSample++ )
|
|
{
|
|
g_aBnWMonitorCustom[ iSample ].b = (g_aBnWMonitor[ iSample ].b * b) >> 8;
|
|
g_aBnWMonitorCustom[ iSample ].g = (g_aBnWMonitor[ iSample ].g * g) >> 8;
|
|
g_aBnWMonitorCustom[ iSample ].r = (g_aBnWMonitor[ iSample ].r * r) >> 8;
|
|
g_aBnWMonitorCustom[ iSample ].a = 0xFF;
|
|
|
|
g_aBnWColorTVCustom[ iSample ].b = (g_aBnwColorTV[ iSample ].b * b) >> 8;
|
|
g_aBnWColorTVCustom[ iSample ].g = (g_aBnwColorTV[ iSample ].g * g) >> 8;
|
|
g_aBnWColorTVCustom[ iSample ].r = (g_aBnwColorTV[ iSample ].r * r) >> 8;
|
|
g_aBnWColorTVCustom[ iSample ].a = 0xFF;
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
static void updatePixelBnWMonitorSingleScanline (uint16_t compositeSignal)
|
|
{
|
|
updateFramebufferMonitorSingleScanline(compositeSignal, g_aBnWMonitorCustom);
|
|
}
|
|
|
|
//===========================================================================
|
|
static void updatePixelBnWMonitorDoubleScanline (uint16_t compositeSignal)
|
|
{
|
|
updateFramebufferMonitorDoubleScanline(compositeSignal, g_aBnWMonitorCustom);
|
|
}
|
|
|
|
//===========================================================================
|
|
static void updatePixelBnWColorTVSingleScanline (uint16_t compositeSignal)
|
|
{
|
|
updateFramebufferColorTVSingleScanline(compositeSignal, g_aBnWColorTVCustom);
|
|
}
|
|
|
|
//===========================================================================
|
|
static void updatePixelBnWColorTVDoubleScanline (uint16_t compositeSignal)
|
|
{
|
|
updateFramebufferColorTVDoubleScanline(compositeSignal, g_aBnWColorTVCustom);
|
|
}
|
|
|
|
//===========================================================================
|
|
static void updatePixelHueColorTVSingleScanline (uint16_t compositeSignal)
|
|
{
|
|
updateFramebufferColorTVSingleScanline(compositeSignal, g_aHueColorTV[g_nColorPhaseNTSC]);
|
|
updateColorPhase();
|
|
}
|
|
|
|
//===========================================================================
|
|
static void updatePixelHueColorTVDoubleScanline (uint16_t compositeSignal)
|
|
{
|
|
updateFramebufferColorTVDoubleScanline(compositeSignal, g_aHueColorTV[g_nColorPhaseNTSC]);
|
|
updateColorPhase();
|
|
}
|
|
|
|
//===========================================================================
|
|
static void updatePixelHueMonitorSingleScanline (uint16_t compositeSignal)
|
|
{
|
|
updateFramebufferMonitorSingleScanline(compositeSignal, g_aHueMonitor[g_nColorPhaseNTSC]);
|
|
updateColorPhase();
|
|
}
|
|
|
|
//===========================================================================
|
|
static void updatePixelHueMonitorDoubleScanline (uint16_t compositeSignal)
|
|
{
|
|
updateFramebufferMonitorDoubleScanline(compositeSignal, g_aHueMonitor[g_nColorPhaseNTSC]);
|
|
updateColorPhase();
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateScreenDoubleHires40 (long cycles6502) // wsUpdateVideoHires0
|
|
{
|
|
if (g_nVideoMixed && g_nVideoClockVert >= VIDEO_SCANNER_Y_MIXED)
|
|
{
|
|
g_pFuncUpdateTextScreen( cycles6502 );
|
|
return;
|
|
}
|
|
|
|
for (; cycles6502 > 0; --cycles6502)
|
|
{
|
|
uint16_t addr = updateVideoScannerAddressHGR();
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
if ((g_nVideoClockHorz < VIDEO_SCANNER_HORZ_COLORBURST_END) && (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_COLORBURST_BEG))
|
|
{
|
|
g_nColorBurstPixels = 1024;
|
|
}
|
|
else if (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_START)
|
|
{
|
|
if ( updateScanLineModeSwitch( cycles6502, updateScreenDoubleHires40 ) ) return; // ANSI STORY: vide mode switch mid scan line!
|
|
|
|
uint8_t *pMain = MemGetMainPtr(addr);
|
|
uint8_t m = pMain[0];
|
|
uint16_t bits = g_aPixelDoubleMaskHGR[m & 0x7F]; // Optimization: hgrbits second 128 entries are mirror of first 128
|
|
updatePixels( bits );
|
|
}
|
|
}
|
|
updateVideoScannerHorzEOL();
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateScreenDoubleHires80 (long cycles6502 ) // wsUpdateVideoDblHires
|
|
{
|
|
uint16_t bits;
|
|
|
|
if (g_nVideoMixed && g_nVideoClockVert >= VIDEO_SCANNER_Y_MIXED)
|
|
{
|
|
g_pFuncUpdateTextScreen( cycles6502 );
|
|
return;
|
|
}
|
|
|
|
for (; cycles6502 > 0; --cycles6502)
|
|
{
|
|
uint16_t addr = updateVideoScannerAddressHGR();
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
if ((g_nVideoClockHorz < VIDEO_SCANNER_HORZ_COLORBURST_END) && (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_COLORBURST_BEG))
|
|
{
|
|
g_nColorBurstPixels = 1024;
|
|
}
|
|
else if (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_START)
|
|
{
|
|
if ( updateScanLineModeSwitch( cycles6502, updateScreenDoubleHires80 ) ) return; // ANSI STORY: vide mode switch mid scan line!
|
|
|
|
uint8_t *pMain = MemGetMainPtr(addr);
|
|
uint8_t *pAux = MemGetAuxPtr (addr);
|
|
|
|
uint8_t m = pMain[0];
|
|
uint8_t a = pAux [0];
|
|
|
|
bits = ((m & 0x7f) << 7) | (a & 0x7f);
|
|
bits = (bits << 1) | g_nLastColumnPixelNTSC;
|
|
updatePixels( bits );
|
|
g_nLastColumnPixelNTSC = (bits >> 14) & 3;
|
|
}
|
|
}
|
|
updateVideoScannerHorzEOL();
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateScreenDoubleLores40 (long cycles6502) // wsUpdateVideo7MLores
|
|
{
|
|
if (g_nVideoMixed && g_nVideoClockVert >= VIDEO_SCANNER_Y_MIXED)
|
|
{
|
|
g_pFuncUpdateTextScreen( cycles6502 );
|
|
return;
|
|
}
|
|
|
|
for (; cycles6502 > 0; --cycles6502)
|
|
{
|
|
uint16_t addr = updateVideoScannerAddressTXT();
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
if ((g_nVideoClockHorz < VIDEO_SCANNER_HORZ_COLORBURST_END) && (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_COLORBURST_BEG))
|
|
{
|
|
g_nColorBurstPixels = 1024;
|
|
}
|
|
else if (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_START)
|
|
{
|
|
if ( updateScanLineModeSwitch( cycles6502, updateScreenDoubleLores40 ) ) return; // ANSI STORY: vide mode switch mid scan line!
|
|
|
|
uint8_t *pMain = MemGetMainPtr(addr);
|
|
uint8_t m = pMain[0];
|
|
uint16_t lo = getLoResBits( m );
|
|
uint16_t bits = g_aPixelDoubleMaskHGR[(0xFF & lo >> ((1 - (g_nVideoClockHorz & 1)) * 2)) & 0x7F]; // Optimization: hgrbits
|
|
updatePixels( bits );
|
|
}
|
|
}
|
|
updateVideoScannerHorzEOL();
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateScreenDoubleLores80 (long cycles6502) // wsUpdateVideoDblLores
|
|
{
|
|
if (g_nVideoMixed && g_nVideoClockVert >= VIDEO_SCANNER_Y_MIXED)
|
|
{
|
|
g_pFuncUpdateTextScreen( cycles6502 );
|
|
return;
|
|
}
|
|
|
|
for (; cycles6502 > 0; --cycles6502)
|
|
{
|
|
uint16_t addr = updateVideoScannerAddressTXT();
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
if ((g_nVideoClockHorz < VIDEO_SCANNER_HORZ_COLORBURST_END) && (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_COLORBURST_BEG))
|
|
{
|
|
g_nColorBurstPixels = 1024;
|
|
}
|
|
else if (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_START)
|
|
{
|
|
if( updateScanLineModeSwitch( cycles6502, updateScreenDoubleLores80 ) ) return; // ANSI STORY: vide mode switch mid scan line!
|
|
|
|
uint8_t *pMain = MemGetMainPtr(addr);
|
|
uint8_t *pAux = MemGetAuxPtr (addr);
|
|
|
|
uint8_t m = pMain[0];
|
|
uint8_t a = pAux [0];
|
|
|
|
uint16_t lo = getLoResBits( m );
|
|
uint16_t hi = getLoResBits( a );
|
|
|
|
uint16_t main = lo >> (((1 - (g_nVideoClockHorz & 1)) * 2) + 3);
|
|
uint16_t aux = hi >> (((1 - (g_nVideoClockHorz & 1)) * 2) + 3);
|
|
uint16_t bits = (main << 7) | (aux & 0x7f);
|
|
updatePixels( bits );
|
|
g_nLastColumnPixelNTSC = (bits >> 14) & 3;
|
|
|
|
}
|
|
}
|
|
updateVideoScannerHorzEOL();
|
|
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateScreenSingleHires40 (long cycles6502)
|
|
{
|
|
if (g_nVideoMixed && g_nVideoClockVert >= VIDEO_SCANNER_Y_MIXED)
|
|
{
|
|
g_pFuncUpdateTextScreen( cycles6502 );
|
|
return;
|
|
}
|
|
|
|
for (; cycles6502 > 0; --cycles6502)
|
|
{
|
|
uint16_t addr = updateVideoScannerAddressHGR();
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
if ((g_nVideoClockHorz < VIDEO_SCANNER_HORZ_COLORBURST_END) && (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_COLORBURST_BEG))
|
|
{
|
|
g_nColorBurstPixels = 1024;
|
|
}
|
|
else if (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_START)
|
|
{
|
|
if ( updateScanLineModeSwitch( cycles6502, updateScreenSingleHires40 ) ) return; // ANSI STORY: vide mode switch mid scan line!
|
|
|
|
uint8_t *pMain = MemGetMainPtr(addr);
|
|
uint8_t m = pMain[0];
|
|
uint16_t bits = g_aPixelDoubleMaskHGR[m & 0x7F]; // Optimization: hgrbits second 128 entries are mirror of first 128
|
|
if (m & 0x80)
|
|
bits = (bits << 1) | g_nLastColumnPixelNTSC;
|
|
updatePixels( bits );
|
|
}
|
|
}
|
|
updateVideoScannerHorzEOL();
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateScreenSingleLores40 (long cycles6502)
|
|
{
|
|
if (g_nVideoMixed && g_nVideoClockVert >= VIDEO_SCANNER_Y_MIXED)
|
|
{
|
|
g_pFuncUpdateTextScreen( cycles6502 );
|
|
return;
|
|
}
|
|
|
|
for (; cycles6502 > 0; --cycles6502)
|
|
{
|
|
uint16_t addr = updateVideoScannerAddressTXT();
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
if ((g_nVideoClockHorz < VIDEO_SCANNER_HORZ_COLORBURST_END) && (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_COLORBURST_BEG))
|
|
{
|
|
g_nColorBurstPixels = 1024;
|
|
}
|
|
else if (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_START)
|
|
{
|
|
if( updateScanLineModeSwitch( cycles6502, updateScreenSingleLores40 ) ) return; // ANSI STORY: vide mode switch mid scan line!
|
|
|
|
uint8_t *pMain = MemGetMainPtr(addr);
|
|
uint8_t m = pMain[0];
|
|
uint16_t lo = getLoResBits( m );
|
|
uint16_t bits = lo >> ((1 - (g_nVideoClockHorz & 1)) * 2);
|
|
updatePixels( bits );
|
|
}
|
|
}
|
|
updateVideoScannerHorzEOL();
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateScreenText40 (long cycles6502)
|
|
{
|
|
for (; cycles6502 > 0; --cycles6502)
|
|
{
|
|
uint16_t addr = updateVideoScannerAddressTXT();
|
|
|
|
if ((g_nVideoClockHorz < VIDEO_SCANNER_HORZ_COLORBURST_END) && (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_COLORBURST_BEG))
|
|
{
|
|
if (g_nColorBurstPixels > 0)
|
|
g_nColorBurstPixels -= 1;
|
|
}
|
|
else if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
if (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_START)
|
|
{
|
|
if ( updateScanLineModeSwitch( cycles6502, updateScreenText40 ) ) return; // ANSI STORY: vide mode switch mid scan line!
|
|
|
|
uint8_t *pMain = MemGetMainPtr(addr);
|
|
uint8_t m = pMain[0];
|
|
uint8_t c = getCharSetBits(m);
|
|
uint16_t bits = g_aPixelDoubleMaskHGR[c & 0x7F]; // Optimization: hgrbits second 128 entries are mirror of first 128
|
|
|
|
if (0 == g_nVideoCharSet && 0x40 == (m & 0xC0)) // Flash only if mousetext not active
|
|
bits ^= g_nTextFlashMask;
|
|
|
|
updatePixels( bits );
|
|
|
|
}
|
|
}
|
|
updateVideoScannerHorzEOL();
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
void updateScreenText80 (long cycles6502)
|
|
{
|
|
for (; cycles6502 > 0; --cycles6502)
|
|
{
|
|
uint16_t addr = updateVideoScannerAddressTXT();
|
|
|
|
if ((g_nVideoClockHorz < VIDEO_SCANNER_HORZ_COLORBURST_END) && (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_COLORBURST_BEG))
|
|
{
|
|
if (g_nColorBurstPixels > 0)
|
|
g_nColorBurstPixels -= 1;
|
|
}
|
|
else if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
{
|
|
if (g_nVideoClockHorz >= VIDEO_SCANNER_HORZ_START)
|
|
{
|
|
if ( updateScanLineModeSwitch( cycles6502, updateScreenText80 ) ) return; // ANSI STORY: vide mode switch mid scan line!
|
|
|
|
uint8_t *pMain = MemGetMainPtr(addr);
|
|
uint8_t *pAux = MemGetAuxPtr (addr);
|
|
|
|
uint8_t m = pMain[0];
|
|
uint8_t a = pAux [0];
|
|
|
|
uint16_t main = getCharSetBits( m );
|
|
uint16_t aux = getCharSetBits( a );
|
|
|
|
if ((0 == g_nVideoCharSet) && 0x40 == (m & 0xC0)) // Flash only if mousetext not active
|
|
main ^= g_nTextFlashMask;
|
|
|
|
if ((0 == g_nVideoCharSet) && 0x40 == (a & 0xC0)) // Flash only if mousetext not active
|
|
aux ^= g_nTextFlashMask;
|
|
|
|
uint16_t bits = (main << 7) | aux;
|
|
updatePixels( bits );
|
|
}
|
|
}
|
|
updateVideoScannerHorzEOL();
|
|
}
|
|
}
|
|
|
|
// Functions (Public) _____________________________________________________________________________
|
|
|
|
//===========================================================================
|
|
uint32_t*NTSC_VideoGetChromaTable( bool bHueTypeMonochrome, bool bMonitorTypeColorTV )
|
|
{
|
|
if( bHueTypeMonochrome )
|
|
{
|
|
g_nChromaSize = sizeof( g_aBnwColorTV );
|
|
|
|
if( bMonitorTypeColorTV )
|
|
return (uint32_t*) g_aBnwColorTV;
|
|
else
|
|
return (uint32_t*) g_aBnWMonitor;
|
|
} else {
|
|
g_nChromaSize = sizeof( g_aHueColorTV );
|
|
|
|
if( bMonitorTypeColorTV )
|
|
return (uint32_t*) g_aHueColorTV;
|
|
else
|
|
#if ALT_TABLE
|
|
g_nChromaSize = sizeof(T_NTSC);
|
|
return (uint32_t*)T_NTSC;
|
|
#endif
|
|
return (uint32_t*) g_aHueMonitor;
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
uint16_t NTSC_VideoGetScannerAddress ( unsigned long cycles6502 )
|
|
{
|
|
(void)cycles6502;
|
|
|
|
int nHires = (g_uVideoMode & VF_HIRES) && !(g_uVideoMode & VF_TEXT); // (SW_HIRES && !SW_TEXT) ? 1 : 0;
|
|
if( nHires )
|
|
updateVideoScannerAddressHGR();
|
|
else
|
|
updateVideoScannerAddressTXT();
|
|
|
|
// Required for ANSI STORY vert scrolling mid-scanline mixed mode: DGR80, TEXT80, DGR80
|
|
uint8_t hclock = (g_nVideoClockHorz + VIDEO_SCANNER_MAX_HORZ - 2) % VIDEO_SCANNER_MAX_HORZ; // Optimization: (h-2)
|
|
return g_aHorzClockMemAddress[ hclock ];
|
|
}
|
|
|
|
//===========================================================================
|
|
void NTSC_SetVideoTextMode( int cols )
|
|
{
|
|
if( cols == 40 )
|
|
g_pFuncUpdateTextScreen = updateScreenText40;
|
|
else
|
|
g_pFuncUpdateTextScreen = updateScreenText80;
|
|
}
|
|
|
|
//===========================================================================
|
|
void NTSC_SetVideoMode( int bVideoModeFlags )
|
|
{
|
|
int h = g_nVideoClockHorz;
|
|
|
|
g_aHorzClockVideoMode[ h ] = bVideoModeFlags;
|
|
|
|
g_nVideoMixed = bVideoModeFlags & VF_MIXED;
|
|
g_nVideoCharSet = VideoGetSWAltCharSet() ? 1 : 0;
|
|
|
|
g_nTextPage = 1;
|
|
g_nHiresPage = 1;
|
|
if (bVideoModeFlags & VF_PAGE2) {
|
|
// Apple IIe, Techical Nodtes, #3: Double High-Resolution Graphics
|
|
// 80STORE must be OFF to display page 2
|
|
if (0 == (bVideoModeFlags & VF_80STORE)) {
|
|
g_nTextPage = 2;
|
|
g_nHiresPage = 2;
|
|
}
|
|
}
|
|
|
|
if (bVideoModeFlags & VF_TEXT) {
|
|
if (bVideoModeFlags & VF_80COL)
|
|
g_pFuncUpdateGraphicsScreen = updateScreenText80;
|
|
else
|
|
g_pFuncUpdateGraphicsScreen = updateScreenText40;
|
|
}
|
|
else if (bVideoModeFlags & VF_HIRES) {
|
|
if (bVideoModeFlags & VF_DHIRES)
|
|
if (bVideoModeFlags & VF_80COL)
|
|
g_pFuncUpdateGraphicsScreen = updateScreenDoubleHires80;
|
|
else
|
|
g_pFuncUpdateGraphicsScreen = updateScreenDoubleHires40;
|
|
else
|
|
g_pFuncUpdateGraphicsScreen = updateScreenSingleHires40;
|
|
}
|
|
else {
|
|
if (bVideoModeFlags & VF_DHIRES)
|
|
if (bVideoModeFlags & VF_80COL)
|
|
g_pFuncUpdateGraphicsScreen = updateScreenDoubleLores80;
|
|
else
|
|
g_pFuncUpdateGraphicsScreen = updateScreenDoubleLores40;
|
|
else
|
|
g_pFuncUpdateGraphicsScreen = updateScreenSingleLores40;
|
|
}
|
|
|
|
g_aFuncUpdateHorz[ h ] = g_pFuncUpdateGraphicsScreen; // NTSC: ANSI STORY
|
|
}
|
|
|
|
//===========================================================================
|
|
void NTSC_SetVideoStyle() // (int v, int s)
|
|
{
|
|
int half = g_uHalfScanLines;
|
|
uint8_t r, g, b;
|
|
|
|
switch ( g_eVideoType )
|
|
{
|
|
case VT_COLOR_TVEMU: // VT_COLOR_TV: // 0:
|
|
r = 0xFF;
|
|
g = 0xFF;
|
|
b = 0xFF;
|
|
updateMonochromeTables( r, g, b );
|
|
if (half)
|
|
{
|
|
g_pFuncUpdateBnWPixel = updatePixelBnWColorTVSingleScanline;
|
|
g_pFuncUpdateHuePixel = updatePixelHueColorTVSingleScanline;
|
|
}
|
|
else {
|
|
g_pFuncUpdateBnWPixel = updatePixelBnWColorTVDoubleScanline;
|
|
g_pFuncUpdateHuePixel = updatePixelHueColorTVDoubleScanline;
|
|
}
|
|
break;
|
|
|
|
case VT_COLOR_STANDARD: // VT_COLOR_MONITOR: //1:
|
|
default:
|
|
r = 0xFF;
|
|
g = 0xFF;
|
|
b = 0xFF;
|
|
updateMonochromeTables( r, g, b );
|
|
if (half)
|
|
{
|
|
g_pFuncUpdateBnWPixel = updatePixelBnWMonitorSingleScanline;
|
|
g_pFuncUpdateHuePixel = updatePixelHueMonitorSingleScanline;
|
|
}
|
|
else {
|
|
g_pFuncUpdateBnWPixel = updatePixelBnWMonitorDoubleScanline;
|
|
g_pFuncUpdateHuePixel = updatePixelHueMonitorDoubleScanline;
|
|
}
|
|
break;
|
|
|
|
case VT_COLOR_TEXT_OPTIMIZED: // VT_MONO_TV: //2:
|
|
r = 0xFF;
|
|
g = 0xFF;
|
|
b = 0xFF;
|
|
updateMonochromeTables( r, g, b ); // Custom Monochrome color
|
|
if (half)
|
|
{
|
|
g_pFuncUpdateBnWPixel = g_pFuncUpdateHuePixel = updatePixelBnWColorTVSingleScanline;
|
|
}
|
|
else {
|
|
g_pFuncUpdateBnWPixel = g_pFuncUpdateHuePixel = updatePixelBnWColorTVDoubleScanline;
|
|
}
|
|
break;
|
|
|
|
// case VT_MONO_WHITE: //VT_MONO_MONITOR: //3:
|
|
case VT_MONO_AMBER:
|
|
r = 0xFF;
|
|
g = 0x80;
|
|
b = 0x00;
|
|
goto _mono;
|
|
|
|
case VT_MONO_GREEN:
|
|
r = 0x00;
|
|
g = 0xC0;
|
|
b = 0x00;
|
|
goto _mono;
|
|
|
|
case VT_MONO_WHITE:
|
|
r = 0xFF;
|
|
g = 0xFF;
|
|
b = 0xFF;
|
|
goto _mono;
|
|
|
|
case VT_MONO_HALFPIXEL_REAL:
|
|
// From WinGDI.h
|
|
// #define RGB(r,g,b) ((COLORREF)(((BYTE)(r)|((WORD)((BYTE)(g))<<8))|(((DWORD)(BYTE)(b))<<16)))
|
|
//#define GetRValue(rgb) (LOBYTE(rgb))
|
|
//#define GetGValue(rgb) (LOBYTE(((WORD)(rgb)) >> 8))
|
|
//#define GetBValue(rgb) (LOBYTE((rgb)>>16))
|
|
r = (g_nMonochromeRGB >> 0) & 0xFF;
|
|
g = (g_nMonochromeRGB >> 8) & 0xFF;
|
|
b = (g_nMonochromeRGB >> 16) & 0xFF;
|
|
_mono:
|
|
updateMonochromeTables( r, g, b ); // Custom Monochrome color
|
|
if (half)
|
|
{
|
|
g_pFuncUpdateBnWPixel = g_pFuncUpdateHuePixel = updatePixelBnWMonitorSingleScanline;
|
|
}
|
|
else
|
|
{
|
|
g_pFuncUpdateBnWPixel = g_pFuncUpdateHuePixel = updatePixelBnWMonitorDoubleScanline;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
void NTSC_VideoInit( uint8_t* pFramebuffer ) // wsVideoInit
|
|
{
|
|
make_csbits();
|
|
initPixelDoubleMasks();
|
|
initChromaPhaseTables();
|
|
updateMonochromeTables( 0xFF, 0xFF, 0xFF );
|
|
|
|
for (int y = 0; y < (VIDEO_SCANNER_Y_DISPLAY*2); y++)
|
|
g_pScanLines[y] = (bgra_t*)(g_pFramebufferbits + 4 * FRAMEBUFFER_W * ((FRAMEBUFFER_H - 1) - y - 18) + 80);
|
|
|
|
g_pVideoAddress = g_pScanLines[0];
|
|
|
|
g_pFuncUpdateTextScreen = updateScreenText40;
|
|
g_pFuncUpdateGraphicsScreen = updateScreenText40;
|
|
|
|
VideoReinitialize(); // Setup g_pFunc_ntsc*Pixel()
|
|
|
|
#if HGR_TEST_PATTERN
|
|
// Init HGR to almost all-possible-combinations
|
|
// CALL-151
|
|
// C050 C053 C057
|
|
unsigned char b = 0;
|
|
unsigned char *main, *aux;
|
|
uint16_t ad;
|
|
|
|
for( unsigned page = 0; page < 2; page++ )
|
|
{
|
|
// for( unsigned w = 0; w < 2; w++ ) // 16 cols
|
|
{
|
|
for( unsigned z = 0; z < 2; z++ ) // 8 cols
|
|
{
|
|
b = 0; // 4 columns * 64 rows
|
|
for( unsigned x = 0; x < 4; x++ ) // 4 cols
|
|
{
|
|
for( unsigned y = 0; y < 64; y++ ) // 1 col
|
|
{
|
|
unsigned y2 = y*2;
|
|
ad = 0x2000 + (y2&7)*0x400 + ((y2/8)&7)*0x80 + (y2/64)*0x28 + 2*x + 10*z; // + 20*w;
|
|
ad += 0x2000*page;
|
|
main = MemGetMainPtr(ad);
|
|
aux = MemGetAuxPtr (ad);
|
|
main[0] = b; main[1] = z + page*0x80;
|
|
aux [0] = z; aux [1] = 0;
|
|
|
|
if( page == 1 )
|
|
{
|
|
// Columns = # of consecutive pixels
|
|
// x = 0, 1, 2, 3
|
|
// # = 3, 5, 7, 9
|
|
// b = 3, 7, 15, 31
|
|
// = (4 << x) - 1
|
|
main[0+z] = (0x80*(y/32) + (((4 << x) - 1) << (y/8))); // (3 | 3+x*2)
|
|
main[1+z] = (0x80*(y/32) + (((4 << x) - 1) << (y/8))) >> 8;
|
|
}
|
|
|
|
y2 = y*2 + 1;
|
|
ad = 0x2000 + (y2&7)*0x400 + ((y2/8)&7)*0x80 + (y2/64)*0x28 + 2*x + 10*z; // + 20*w;
|
|
ad += 0x2000*page;
|
|
main = MemGetMainPtr(ad);
|
|
aux = MemGetAuxPtr (ad);
|
|
main[0] = 0; main[1] = z + page*0x80;
|
|
aux [0] = b; aux [1] = 0;
|
|
|
|
b++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
//===========================================================================
|
|
void NTSC_VideoInitAppleType ( DWORD cyclesThisFrame )
|
|
{
|
|
int model = g_Apple2Type;
|
|
|
|
// anything other than low bit set means not II/II+ (TC: include Pravets machines too?)
|
|
if (model & 0xFFFE)
|
|
g_pHorzClockOffset = APPLE_IIE_HORZ_CLOCK_OFFSET;
|
|
else
|
|
g_pHorzClockOffset = APPLE_IIP_HORZ_CLOCK_OFFSET;
|
|
|
|
// TC: Move these to a better place (as init'ing these 2 vars is nothing to do with g_Apple2Type)
|
|
_ASSERT(cyclesThisFrame < VIDEO_SCANNER_6502_CYCLES);
|
|
if (cyclesThisFrame >= VIDEO_SCANNER_6502_CYCLES) cyclesThisFrame = 0; // error
|
|
g_nVideoClockVert = (uint16_t) (cyclesThisFrame / VIDEO_SCANNER_MAX_HORZ);
|
|
g_nVideoClockHorz = cyclesThisFrame % VIDEO_SCANNER_MAX_HORZ;
|
|
}
|
|
|
|
//===========================================================================
|
|
void NTSC_VideoInitChroma()
|
|
{
|
|
initChromaPhaseTables();
|
|
}
|
|
|
|
//===========================================================================
|
|
bool NTSC_VideoIsVbl ()
|
|
{
|
|
return (g_nVideoClockVert >= VIDEO_SCANNER_Y_DISPLAY) && (g_nVideoClockVert < VIDEO_SCANNER_MAX_VERT);
|
|
}
|
|
|
|
// Light-weight Video Clock Update
|
|
//===========================================================================
|
|
void NTSC_VideoUpdateCycles( long cycles6502 )
|
|
{
|
|
bool bRedraw = cycles6502 >= VIDEO_SCANNER_6502_CYCLES;
|
|
|
|
// if( !g_bFullSpeed )
|
|
if(true)
|
|
g_pFuncUpdateGraphicsScreen( cycles6502 );
|
|
else
|
|
{
|
|
while( cycles6502 > VIDEO_SCANNER_6502_CYCLES )
|
|
/* */ cycles6502 -= VIDEO_SCANNER_6502_CYCLES ;
|
|
|
|
for( ; cycles6502 > 0; cycles6502-- )
|
|
{
|
|
if (VIDEO_SCANNER_MAX_HORZ == ++g_nVideoClockHorz)
|
|
{
|
|
g_nVideoClockHorz = 0;
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
g_apFuncVideoUpdateScanline[ g_nVideoClockVert ] = g_pFuncUpdateGraphicsScreen;
|
|
|
|
if (++g_nVideoClockVert == VIDEO_SCANNER_MAX_VERT)
|
|
{
|
|
g_nVideoClockVert = 0;
|
|
|
|
updateFlashRate();
|
|
|
|
bRedraw = true;
|
|
}
|
|
|
|
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
|
|
updateVideoScannerAddress();
|
|
}
|
|
}
|
|
|
|
if( bRedraw ) // Force full refresh
|
|
{
|
|
for( int y = 0; y < VIDEO_SCANNER_Y_DISPLAY; y++ )
|
|
g_apFuncVideoUpdateScanline[ y ]( VIDEO_SCANNER_MAX_HORZ );
|
|
|
|
int nCyclesVBlank = (VIDEO_SCANNER_MAX_VERT - VIDEO_SCANNER_Y_DISPLAY) * VIDEO_SCANNER_MAX_HORZ;
|
|
g_pFuncUpdateGraphicsScreen( nCyclesVBlank );
|
|
|
|
VideoRefreshScreen(0);
|
|
}
|
|
}
|
|
}
|