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Support high accuracy rendering (slowly)

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git-svn-id: svn://10.0.0.236/trunk@13558 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
kipp%netscape.com
1998-10-27 16:49:40 +00:00
parent 9867c7247c
commit 28ed9703d1
1 changed files with 22 additions and 14 deletions
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36
mozilla/gfx/src/windows/nsRenderingContextWin.cpp
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@@ -1507,22 +1507,30 @@ nsRenderingContextWin :: DrawString(const PRUnichar *aString, PRUint32 aLength,
SetupFontAndColor();
INT dxMem[500];
INT* dx0;
if (nsnull != aSpacing) {
dx0 = dxMem;
if (aLength > 500) {
dx0 = new INT[aLength];
if (nsnull != aSpacing)
{
// XXX Fix path to use a twips transform in the DC and use the
// spacing values directly and let windows deal with the sub-pixel
// positioning.
// Slow, but accurate rendering
const PRUnichar* end = aString + aLength;
while (aString < end)
{
// XXX can shave some cycles by inlining a version of transform
// coord where y is constant and transformed once
x = aX;
y = aY;
mTMatrix->TransformCoord(&x, &y);
::ExtTextOutW(mDC, x, y, 0, NULL, aString, 1, NULL);
aX += *aSpacing++;
aString++;
}
mTMatrix->ScaleXCoords(aSpacing, aLength, dx0);
}
mTMatrix->TransformCoord(&x, &y);
::ExtTextOutW(mDC, x, y, 0, NULL, aString, aLength, aSpacing ? dx0 : NULL);
if ((nsnull != aSpacing) && (dx0 != dxMem)) {
delete [] dx0;
else
{
mTMatrix->TransformCoord(&x, &y);
::ExtTextOutW(mDC, x, y, 0, NULL, aString, aLength, NULL);
}
if (nsnull != mFontMetrics)