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Add 32bpp blitter support for adjusting brightness of drawn sprites

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This commit is contained in:
Jonathan G Rennison
2021-02-26 18:02:13 +00:00
parent 42e57995dd
commit 4ef363422a
10 changed files with 260 additions and 21 deletions
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19
src/blitter/32bpp_simple.cpp
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@@ -45,6 +45,18 @@ void Blitter_32bppSimple::Draw(Blitter::BlitterParams *bp, BlitterMode mode, Zoo
}
break;
case BM_COLOUR_REMAP_WITH_BRIGHTNESS:
/* In case the m-channel is zero, do not remap this pixel in any way */
if (src->m == 0) {
if (src->a != 0) {
Colour c = AdjustBrightness(Colour(src->r, src->g, src->b, src->a), DEFAULT_BRIGHTNESS + bp->brightness_adjust);
*dst = ComposeColourRGBA(c.r, c.g, c.b, c.a, *dst);
}
} else {
if (bp->remap[src->m] != 0) *dst = ComposeColourPA(this->AdjustBrightness(this->LookupColourInPalette(bp->remap[src->m]), Clamp(src->v + bp->brightness_adjust, 0, 255)), src->a, *dst);
}
break;
case BM_CRASH_REMAP:
if (src->m == 0) {
if (src->a != 0) {
@@ -71,6 +83,13 @@ void Blitter_32bppSimple::Draw(Blitter::BlitterParams *bp, BlitterMode mode, Zoo
if (src->a != 0) *dst = MakeTransparent(*dst, 192);
break;
case BM_NORMAL_WITH_BRIGHTNESS:
if (src->a != 0) {
Colour c = AdjustBrightness(Colour(src->r, src->g, src->b, src->a), DEFAULT_BRIGHTNESS + bp->brightness_adjust);
*dst = ComposeColourRGBA(c.r, c.g, c.b, c.a, *dst);
}
break;
default:
if (src->a != 0) *dst = ComposeColourRGBA(src->r, src->g, src->b, src->a, *dst);
break;