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Fix incorrect handling of over-brightness in non-SSE 32bpp blitter.

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Jonathan G Rennison
2018-03-08 21:30:02 +00:00
parent 1fce82ac04
commit ab1b04055a
1 changed files with 4 additions and 4 deletions
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8
src/blitter/32bpp_base.cpp
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@@ -175,12 +175,12 @@ Colour Blitter_32bppBase::ReallyAdjustBrightness(Colour colour, uint8 brightness
{ {
assert(DEFAULT_BRIGHTNESS == 1 << 7); assert(DEFAULT_BRIGHTNESS == 1 << 7);
uint64 combined = (((uint64) colour.r) << 32) | (colour.g << 16) | colour.b; uint64 combined = (((uint64) colour.r) << 32) | (((uint64) colour.g) << 16) | ((uint64) colour.b);
combined *= brightness; combined *= brightness;
uint16 r = GB(combined, 39, 8); uint16 r = GB(combined, 39, 9);
uint16 g = GB(combined, 23, 8); uint16 g = GB(combined, 23, 9);
uint16 b = GB(combined, 7, 8); uint16 b = GB(combined, 7, 9);
if ((combined & 0x800080008000L) == 0L) { if ((combined & 0x800080008000L) == 0L) {
return Colour(r, g, b, colour.a); return Colour(r, g, b, colour.a);