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[NTVDM]: Fix INT 10h, AH=09h/0Ah by correctly advancing the write position (but scrolling is not supported in those functions), and make VidBiosDrawGlyph support using or not the attribute byte (for text modes only).

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svn path=/trunk/; revision=68088
This commit is contained in:
Hermès Bélusca-Maïto 2015-06-09 12:47:58 +00:00
parent 07d842f6c6
commit d15ab1916a
1 changed files with 36 additions and 20 deletions
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56
reactos/subsystems/mvdm/ntvdm/bios/vidbios.c
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@ -2561,7 +2561,7 @@ static BOOLEAN VidBiosSetVideoPage(BYTE PageNumber)
return TRUE;
}
static VOID VidBiosDrawGlyph(WORD CharData, BYTE Page, BYTE Row, BYTE Column)
static VOID VidBiosDrawGlyph(WORD CharData, BOOLEAN UseAttr, BYTE Page, BYTE Row, BYTE Column)
{
switch (Bda->VideoMode)
{
@ -2576,8 +2576,7 @@ static VOID VidBiosDrawGlyph(WORD CharData, BYTE Page, BYTE Row, BYTE Column)
Page * Bda->VideoPageSize +
(Row * Bda->ScreenColumns + Column) * sizeof(WORD)),
(LPVOID)&CharData,
sizeof(WORD));
UseAttr ? sizeof(WORD) : sizeof(BYTE));
break;
}
@ -2831,7 +2830,7 @@ static VOID VidBiosPrintCharacter(CHAR Character, BYTE Attribute, BYTE Page)
/* Erase the existing character */
CharData = MAKEWORD(' ', Attribute);
VidBiosDrawGlyph(CharData, Page, Row, Column);
VidBiosDrawGlyph(CharData, TRUE, Page, Row, Column);
}
else if (Character == '\t')
{
@ -2857,10 +2856,8 @@ static VOID VidBiosPrintCharacter(CHAR Character, BYTE Attribute, BYTE Page)
{
/* Default character */
/* Write the character */
VidBiosDrawGlyph(CharData, Page, Row, Column);
/* Advance the cursor */
/* Write the character and advance the cursor */
VidBiosDrawGlyph(CharData, TRUE, Page, Row, Column);
Column++;
}
@ -2957,7 +2954,7 @@ VOID WINAPI VidBiosVideoService(LPWORD Stack)
/* Read Character and Attribute at Cursor Position */
case 0x08:
{
WORD CharacterData;
WORD CharData;
BYTE Page = getBH();
DWORD Offset;
@ -2972,11 +2969,11 @@ VOID WINAPI VidBiosVideoService(LPWORD Stack)
/* Read from the video memory */
EmulatorReadMemory(&EmulatorContext,
TO_LINEAR(TEXT_VIDEO_SEG, Offset),
(LPVOID)&CharacterData,
(LPVOID)&CharData,
sizeof(WORD));
/* Return the character data in AX */
setAX(CharacterData);
setAX(CharData);
break;
}
@ -2986,21 +2983,40 @@ VOID WINAPI VidBiosVideoService(LPWORD Stack)
/* Write Character only (PCjr: + Attribute) at Cursor Position */
case 0x0A:
{
WORD CharacterData = MAKEWORD(getAL(), getBL());
BYTE Page = getBH();
DWORD Counter = getCX();
WORD Counter = getCX();
WORD CharData = MAKEWORD(getAL(), getBL());
BOOLEAN UseAttr = (getAH() == 0x09);
BYTE Page = getBH();
BYTE Row, Column;
/* Check if the page exists */
if (Page >= BIOS_MAX_PAGES) break;
/* Get the cursor location */
// VidBiosGetCursorPosition(&Row, &Column, Page);
Row = HIBYTE(Bda->CursorPosition[Page]);
Column = LOBYTE(Bda->CursorPosition[Page]);
/* Write to video memory a certain number of times */
while (Counter > 0)
while (Counter-- > 0)
{
VidBiosDrawGlyph(CharacterData,
CharacterData,
HIBYTE(Bda->CursorPosition[Page]),
LOBYTE(Bda->CursorPosition[Page]));
Counter--;
/* Write the character and advance the position */
VidBiosDrawGlyph(CharData, UseAttr, Page, Row, Column);
Column++;
/* Check if it passed the end of the row */
if (Column >= Bda->ScreenColumns)
{
/* Return to the first column and go to the next line */
Column = 0;
Row++;
}
/* Contrary to the "Teletype Output" function, the screen is not scrolled */
if (Row > Bda->ScreenRows)
{
Row = Bda->ScreenRows;
}
}
break;