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Remove old, unused Video.cpp var/code:

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. g_VideoForceFullRedraw
. VideoApparentlyDirty()
This commit is contained in:
tomcw 2017-02-17 15:34:50 +00:00
parent 568441f844
commit fc781cdd47
2 changed files with 0 additions and 87 deletions
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86
source/Video.cpp
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@ -248,9 +248,6 @@ static LPBYTE g_aSourceStartofLine[ MAX_SOURCE_Y ];
static LPBYTE g_pTextBank1; // Aux
static LPBYTE g_pTextBank0; // Main
// TC (25/8/2016): TODO: Need to investigate the use of this global flag for 1.27
static /*bool*/ UINT g_VideoForceFullRedraw = 1;
static LPBYTE framebufferaddr = (LPBYTE)0;
static LONG g_nFrameBufferPitch = 0;
COLORREF g_nMonochromeRGB = RGB(0xC0,0xC0,0xC0);
@ -584,64 +581,10 @@ static void CreateLookup_TextCommon(HDC hDstDC, DWORD rop)
//===========================================================================
static inline int GetOriginal2EOffset(BYTE ch)
{
// No mousetext for original IIe
return !IsOriginal2E() || !g_nAltCharSetOffset || (ch<0x40) || (ch>0x5F) ? 0 : -g_nAltCharSetOffset;
}
//===========================================================================
//
// ----- ALL GLOBALLY ACCESSIBLE FUNCTIONS ARE BELOW THIS LINE -----
//
//===========================================================================
BOOL VideoApparentlyDirty ()
{
if (SW_MIXED || g_VideoForceFullRedraw)
return 1;
DWORD address = (SW_HIRES && !SW_TEXT)
? (0x20 << (SW_PAGE2 ? 1 : 0))
: (0x04 << (SW_PAGE2 ? 1 : 0));
DWORD length = (SW_HIRES && !SW_TEXT) ? 0x20 : 0x4;
while (length--)
if (*(memdirty+(address++)) & 2)
return 1;
//
// Scan visible text page for any flashing chars
if((SW_TEXT || SW_MIXED) && (g_nAltCharSetOffset == 0))
{
BYTE* pTextBank0 = MemGetMainPtr(0x400 << (SW_PAGE2 ? 1 : 0));
BYTE* pTextBank1 = MemGetAuxPtr (0x400 << (SW_PAGE2 ? 1 : 0));
const bool b80Col = SW_80COL;
// Scan 8 long-lines of 120 chars (at 128 char offsets):
// . Skip 8-char holes in TEXT
for(UINT y=0; y<8; y++)
{
for(UINT x=0; x<40*3; x++)
{
BYTE ch = pTextBank0[y*128+x];
if((ch >= 0x40) && (ch <= 0x7F))
return 1;
if (b80Col)
{
ch = pTextBank1[y*128+x];
if((ch >= 0x40) && (ch <= 0x7F))
return 1;
}
}
}
}
return 0;
}
//===========================================================================
void VideoBenchmark () {
Sleep(500);
@ -1258,8 +1201,6 @@ void VideoRefreshScreen ( uint32_t uRedrawWholeScreenVideoMode /* =0*/, bool bRe
GdiFlush();
FrameReleaseVideoDC();
g_VideoForceFullRedraw = 0;
// NTSC_END
}
@ -1281,8 +1222,6 @@ void VideoResetState ()
NTSC_SetVideoTextMode( 40 );
NTSC_SetVideoMode( g_uVideoMode );
g_VideoForceFullRedraw = 1;
}
@ -1292,9 +1231,6 @@ BYTE VideoSetMode (WORD, WORD address, BYTE write, BYTE, ULONG uExecutedCycles)
{
address &= 0xFF;
// DWORD oldpage2 = SW_PAGE2;
// int oldvalue = g_nAltCharSetOffset+(int)(g_uVideoMode & ~(VF_80STORE | VF_PAGE2));
switch (address)
{
case 0x00: g_uVideoMode &= ~VF_80STORE; break;
@ -1324,28 +1260,6 @@ BYTE VideoSetMode (WORD, WORD address, BYTE write, BYTE, ULONG uExecutedCycles)
NTSC_SetVideoMode( g_uVideoMode );
// NTSC_END
#if 0 // NTSC_CLEANUP: Is this still needed??
if (oldvalue != g_nAltCharSetOffset+(int)(g_uVideoMode & ~(VF_80STORE | VF_PAGE2)))
g_VideoForceFullRedraw = 1; // Defer video redraw until VideoEndOfVideoFrame()
if (oldpage2 != SW_PAGE2)
{
// /g_bVideoUpdatedThisFrame/ is used to limit the video update to once per 60Hz frame (CPU clk=1MHz):
// . this easily supports the common double-buffered "flip-immediate" case (eg. Airheart flips at a max of ~15Hz, Skyfox/Boulderdash at a max of ~11Hz)
// . crucially this prevents tight-loop page flipping (GH#129,GH#204) from max'ing out an x86 CPU core (and not providing realtime emulation)
// NB. Deferring the update by just setting /g_VideoForceFullRedraw/ is not an option, since this doesn't provide "flip-immediate"
//
// Ultimately this isn't the correct solution, and proper cycle-accurate video rendering should be done, but this is a much bigger job!
// TODO-Michael: Is MemReadFloatingBus() still accurate now that we have proper per cycle video rendering??
if (!g_bVideoUpdatedThisFrame)
{
VideoRedrawScreen(); // VideoRefreshScreen();
g_bVideoUpdatedThisFrame = true;
}
}
#endif // NTSC_CLEANUP
return MemReadFloatingBus(uExecutedCycles);
}

1
source/Video.h
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@ -162,7 +162,6 @@ typedef bool (*VideoUpdateFuncPtr_t)(int,int,int,int,int);
// Prototypes _______________________________________________________
BOOL VideoApparentlyDirty ();
void VideoBenchmark ();
void VideoChooseMonochromeColor (); // FIXME: Should be moved to PageConfig and call VideoSetMonochromeColor()
void VideoDestroy ();