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Remove flicker from NTSC_VideoUpdateCycles() -- draw each scanline

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This commit is contained in:
michaelangel007 2015-01-02 17:38:48 -08:00
parent d8fe5a4700
commit d67f084bf3
1 changed files with 19 additions and 3 deletions
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22
source/NTSC.cpp
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@ -376,6 +376,9 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
static void (*g_pFunc_ntscMonoPixel )(int) = 0; //ntscMonoSinglePixel ; static void (*g_pFunc_ntscMonoPixel )(int) = 0; //ntscMonoSinglePixel ;
static void (*g_pFunc_ntscColorPixel)(int) = 0; //ntscColorSinglePixel; static void (*g_pFunc_ntscColorPixel)(int) = 0; //ntscColorSinglePixel;
typedef void (*Func_t)(long);
static Func_t g_apFuncVideoUpdateScanline[VIDEO_SCANNER_Y_DISPLAY];
// Prototypes // Prototypes
// prototype from CPU.h // prototype from CPU.h
//unsigned char CpuRead(unsigned short addr, unsigned long uExecutedCycles); //unsigned char CpuRead(unsigned short addr, unsigned long uExecutedCycles);
@ -1476,6 +1479,8 @@ int NTSC_VideoIsVbl ()
//=========================================================================== //===========================================================================
void NTSC_VideoUpdateCycles( long cycles6502 ) void NTSC_VideoUpdateCycles( long cycles6502 )
{ {
bool bRedraw = false;
// if( !g_bFullSpeed ) // if( !g_bFullSpeed )
// g_pFunc_NTSCVideoUpdateGraphics( cycles6502 ); // g_pFunc_NTSCVideoUpdateGraphics( cycles6502 );
// else // else
@ -1492,13 +1497,13 @@ void NTSC_VideoUpdateCycles( long cycles6502 )
g_nTextFlashCounter = 0; g_nTextFlashCounter = 0;
g_nTextFlashMask ^= -1; // 16-bits g_nTextFlashMask ^= -1; // 16-bits
} }
bRedraw = true;
// Force full refresh
g_pFunc_NTSCVideoUpdateGraphics( VIDEO_SCANNER_6502_CYCLES );
} }
if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY) if (g_nVideoClockVert < VIDEO_SCANNER_Y_DISPLAY)
{ {
g_apFuncVideoUpdateScanline[ g_nVideoClockVert ] = g_pFunc_NTSCVideoUpdateGraphics;
g_pVideoAddress = g_aNTSC_Lines[2*g_nVideoClockVert]; g_pVideoAddress = g_aNTSC_Lines[2*g_nVideoClockVert];
g_nColorPhaseNTSC = INITIAL_COLOR_PHASE; g_nColorPhaseNTSC = INITIAL_COLOR_PHASE;
g_nLastColumnPixelNTSC = 0; g_nLastColumnPixelNTSC = 0;
@ -1506,4 +1511,15 @@ void NTSC_VideoUpdateCycles( long cycles6502 )
} }
} }
} }
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_pFunc_NTSCVideoUpdateGraphics( nCyclesVBlank );
}
} }