thirdparty/scummvm
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Fixed bottleneck: Screen dimming.

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svn-id: r34482
This commit is contained in:
Vicent Marti 2008-09-10 18:43:24 +00:00
parent 2de0d7d42e
commit 81715eae04
1 changed files with 17 additions and 21 deletions
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38
graphics/VectorRendererSpec.cpp
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@ -371,15 +371,17 @@ applyScreenShading(GUI::Theme::ShadingStyle shadingStyle) {
PixelType *ptr = (PixelType *)_activeSurface->getBasePtr(0, 0);
uint8 r, g, b;
uint lum;
uint32 shiftMask = (uint32)(
(1 << PixelFormat::kGreenShift) |
(1 << PixelFormat::kRedShift) |
(1 << PixelFormat::kBlueShift));
shiftMask = (~shiftMask) >> 1;
if (shadingStyle == GUI::Theme::kShadingDim) {
while (pixels--) {
colorToRGB<PixelFormat>(*ptr, r, g, b);
r = r * _dimPercentValue >> 8;
g = g * _dimPercentValue >> 8;
b = b * _dimPercentValue >> 8;
*ptr++ = RGBToColor<PixelFormat>(r, g, b);
}
while (pixels--)
*ptr++ = (*ptr >> 1) & shiftMask;
} else if (shadingStyle == GUI::Theme::kShadingLuminance) {
while (pixels--) {
colorToRGB<PixelFormat>(*ptr, r, g, b);
@ -424,24 +426,18 @@ calcGradient(uint32 pos, uint32 max) {
template <typename PixelType, typename PixelFormat>
void VectorRendererSpec<PixelType, PixelFormat>::
colorFill(PixelType *first, PixelType *last, PixelType color) {
if (first == last) {
*first = color;
return;
}
register PixelType *ptr = first;
register int count = (last - first);
register int n = (count + 7) >> 3;
switch (count % 8) {
case 0: do {
*ptr++ = color;
case 7: *ptr++ = color;
case 6: *ptr++ = color;
case 5: *ptr++ = color;
case 4: *ptr++ = color;
case 3: *ptr++ = color;
case 2: *ptr++ = color;
case 1: *ptr++ = color;
*first++ = color;
case 7: *first++ = color;
case 6: *first++ = color;
case 5: *first++ = color;
case 4: *first++ = color;
case 3: *first++ = color;
case 2: *first++ = color;
case 1: *first++ = color;
} while (--n > 0);
}
}