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Fixes for 24-bit Windows devices. The old code was trying to do 3-byte

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stores with a full DWORD store (yuk).  (Jeff Lewis)
This commit is contained in:
Karl Schultz
2002-01-16 15:42:17 +00:00
parent 43df32e438
commit 4197c0ea9b
1 changed files with 11 additions and 5 deletions
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16
src/mesa/drivers/windows/wmesa.c
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@@ -1,4 +1,4 @@
/* $Id: wmesa.c,v 1.24 2002/01/15 18:14:34 kschultz Exp $ */
/* $Id: wmesa.c,v 1.25 2002/01/16 15:42:17 kschultz Exp $ */
/*
* Windows (Win32) device driver for Mesa 3.4
@@ -474,9 +474,9 @@ static clear(GLcontext* ctx, GLbitfield mask,
b = GetBValue(Current->clearpixel);
iSize = Current->width;
while (i < iSize) {
*lpb++ = r;
*lpb++ = g;
*lpb++ = b;
*lpb++ = g;
*lpb++ = r;
i++;
}
lpb = Current->pbPixels + Current->ScanWidth;
@@ -1616,7 +1616,11 @@ wmSetPixel(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b)
else if(nBypp == 2)
*((LPWORD)lpb) = BGR16(r,g,b);
else if (nBypp == 3)
*((LPDWORD)lpb) = BGR24(r,g,b);
{
*lpb++ = b;
*lpb++ = g;
*lpb = r;
}
else if (nBypp == 4)
*((LPDWORD)lpb) = BGR32(r,g,b);
}
@@ -1638,7 +1642,9 @@ void wmSetPixel4(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b)
void wmSetPixel3(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b)
{
LPBYTE lpb = pwc->pbPixels + pwc->ScanWidth * iScanLine + iPixel + iPixel + iPixel;
*((LPDWORD)lpb) = BGR24(r,g,b);
*lpb++ = b;
*lpb++ = g;
*lpb = r;
}
void wmSetPixel2(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b)