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Change: Support custom transparency remaps with 32bpp blitters.

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This closes a 15 year old TODO...
This commit is contained in:
Peter Nelson
2023-12-22 16:01:33 +00:00
committed by Peter Nelson
parent 0bc22dd310
commit 9ce1626bb4
10 changed files with 114 additions and 24 deletions
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19
src/blitter/32bpp_anim_sse4.cpp
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@@ -7,6 +7,7 @@
/** @file 32bpp_anim_sse4.cpp Implementation of the SSE4 32 bpp blitter with animation support. */
#include "palette_func.h"
#ifdef WITH_SSE
#include "../stdafx.h"
@@ -317,6 +318,21 @@ bmcr_alpha_blend_single:
}
break;
case BM_TRANSPARENT_REMAP:
/* Apply custom transparency remap. */
for (uint x = (uint) bp->width; x > 0; x--) {
if (src->a != 0) {
*dst = this->LookupColourInPalette(bp->remap[GetNearestColourIndex(*dst)]);
*anim = 0;
}
src_mv++;
dst++;
src++;
anim++;
}
break;
case BM_CRASH_REMAP:
for (uint x = (uint) bp->width; x > 0; x--) {
if (src_mv->m == 0) {
@@ -351,7 +367,7 @@ bmcr_alpha_blend_single:
}
next_line:
if (mode != BM_TRANSPARENT) src_mv_line += si->sprite_width;
if (mode != BM_TRANSPARENT && mode != BM_TRANSPARENT_REMAP) src_mv_line += si->sprite_width;
src_rgba_line = (const Colour*) ((const byte*) src_rgba_line + si->sprite_line_size);
dst_line += bp->pitch;
anim_line += this->anim_buf_pitch;
@@ -414,6 +430,7 @@ bm_normal:
}
break;
case BM_TRANSPARENT: Draw<BM_TRANSPARENT, RM_NONE, BT_NONE, true, true>(bp, zoom); return;
case BM_TRANSPARENT_REMAP: Draw<BM_TRANSPARENT_REMAP, RM_NONE, BT_NONE, true, true>(bp, zoom); return;
case BM_CRASH_REMAP: Draw<BM_CRASH_REMAP, RM_NONE, BT_NONE, true, true>(bp, zoom); return;
case BM_BLACK_REMAP: Draw<BM_BLACK_REMAP, RM_NONE, BT_NONE, true, true>(bp, zoom); return;
}