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Support SHR video modes with a VidHD card (#997, PR #1004)

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Support VidHD in slot 3 (via Config GUI or '-s3 vidhd') for SHR video modes only.
- AppleWin window is slightly enlarged when VidHD card is inserted.
Support IIgs 320x200 (and fill mode) and 640x200 video modes.
Debugger: add 'shr' command to view video
CUI: Allow user to specify width & height (for full-screen); and allow separate x,y scaling in full-screen mode.
This commit is contained in:
TomCh
2021-11-30 21:41:02 +00:00
committed by GitHub
parent 0b2104cc89
commit 443545b0f6
28 changed files with 653 additions and 113 deletions
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source/Memory.cpp
+17
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@@ -122,6 +122,10 @@ VIDEO SOFT SWITCHES
$C00D W 80COLON Turn on 80 column display
$C00E W ALTCHARSETOFF Turn off alternate characters
$C00F W ALTCHARSETON Turn on alternate characters
$C022 R/W SCREENCOLOR [IIgs] text foreground and background colors (also VidHD)
$C029 R/W NEWVIDEO [IIgs] Select new video modes (also VidHD)
$C034 R/W BORDERCOLOR [IIgs] b3:0 are border color (also VidHD)
$C035 R/W SHADOW [IIgs] auxmem-to-bank-E1 shadowing (also VidHD)
$C050 R/W TEXTOFF Select graphics mode
$C051 R/W TEXTON Select text mode
$C052 R/W MIXEDOFF Use full screen for graphics
@@ -470,6 +474,12 @@ static BYTE __stdcall IORead_C02x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG
static BYTE __stdcall IOWrite_C02x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nExecutedCycles)
{
if (GetCardMgr().QuerySlot(SLOT3) == CT_VidHD)
{
if (addr == 0xC022 || addr == 0xC029)
GetVideo().VideoSetMode(pc, addr, bWrite, d, nExecutedCycles);
}
return TapeWrite(pc, addr, bWrite, d, nExecutedCycles); // $C020 TAPEOUT
}
@@ -482,6 +492,13 @@ static BYTE __stdcall IORead_C03x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG
static BYTE __stdcall IOWrite_C03x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nExecutedCycles)
{
if (GetCardMgr().QuerySlot(SLOT3) == CT_VidHD)
{
// NB. Writes to $C03x addresses will still toggle the speaker, even with a VidHD present
if (addr == 0xC034 || addr == 0xC035)
GetVideo().VideoSetMode(pc, addr, bWrite, d, nExecutedCycles);
}
return SpkrToggle(pc, addr, bWrite, d, nExecutedCycles);
}