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Optimize {,Shm}PutImage

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Don't calculate clipping when its not needed. This can still be improved
by a ton, but it can wait :)
This commit is contained in:
Oskari Alaranta
2026-05-30 18:29:49 +03:00
parent d787afb7e3
commit 97e82afd4d
1 changed files with 26 additions and 1 deletions
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27
xbanan/Image.cpp
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@@ -60,8 +60,33 @@ void put_image(const PutImageInfo& info)
}
case ZPixmap:
{
bool needs_clipping = true;
if (info.gc.clip_mask == None)
{
needs_clipping = false;
}
else if (info.gc.clip_mask == UINT32_MAX)
{
const uint32_t clip_min_x = min_x - info.gc.clip_origin_x;
const uint32_t clip_min_y = min_y - info.gc.clip_origin_y;
const uint32_t clip_max_x = max_x - info.gc.clip_origin_x;
const uint32_t clip_max_y = max_y - info.gc.clip_origin_y;
for (const auto& rect : info.gc.clip_rects)
{
if (clip_min_x < rect.x || clip_max_x > rect.x + rect.width)
continue;
if (clip_min_y < rect.y || clip_max_y > rect.y + rect.height)
continue;
needs_clipping = false;
break;
}
}
ASSERT(info.left_pad == 0);
if (in_bpp == 32 && info.gc.clip_mask == None)
if (in_bpp == 32 && !needs_clipping)
{
const auto bytes_per_row = (max_x - min_x) * 4;
for (int32_t y = min_y; y < max_y; y++)