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TWINE: cleanup loops in drawTransparentBox

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This commit is contained in:
Martin Gerhardy
2020-12-23 11:15:28 +01:00
parent 58971cdfad
commit 92e822bc6c
1 changed files with 9 additions and 15 deletions
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engines/twine/menu/interface.cpp
+9 -15
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@@ -191,27 +191,21 @@ void Interface::drawTransparentBox(const Common::Rect &rect, int32 colorAdj) {
return;
}
uint8 *pos = (uint8*)_engine->frontVideoBuffer.getBasePtr(left, top);
const int32 height = bottom - top;
const int32 width = right - left + 1;
const int32 pitch = SCREEN_WIDTH - width;
const int32 localMode = colorAdj;
uint8 *pos = (uint8*)_engine->frontVideoBuffer.getBasePtr(0, top);
for (int32 y = 0; y < height; ++y) {
int32 var1 = width;
do {
int8 color = *pos & 0x0F;
const int8 color2 = *pos & 0xF0;
color -= localMode;
for (int32 y = top; y < bottom; ++y) {
for (int32 x = left; x < right; ++x) {
int8 color = pos[x] & 0x0F;
const int8 color2 = pos[x] & 0xF0;
color -= colorAdj;
if (color < 0) {
color = color2;
} else {
color += color2;
}
*pos++ = color;
var1--;
} while (var1 > 0);
pos += pitch;
pos[x] = color;
}
pos += SCREEN_WIDTH;
}
}