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GS/TC: Optimize block offset calculation.

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Swap offset x and y loops:
Having the y loop first allows for better optimizations/caching since it's bigger.
Also optimize start point loop conditions for target rect.
This commit is contained in:
lightningterror
2025-09-30 21:10:19 +02:00
parent bafd87694c
commit e550cf9b63
1 changed files with 7 additions and 6 deletions
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13
pcsx2/GS/Renderers/HW/GSTextureCache.cpp
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@@ -308,12 +308,13 @@ GSVector4i GSTextureCache::TranslateAlignedRectByPage(u32 tbp, u32 tebp, u32 tbw
if (block_matched_format)
{
GSVector4i b2a_offset = GSVector4i::zero();
const GSVector4i target_rect = GSVector4i(0, 0, src_bw, 2048);
const int y_page_offset = (page_offset / (src_bw / s_psm.pgs.x)) * s_psm.pgs.y;
const GSVector4i target_rect = GSVector4i(0, y_page_offset, src_bw, 2048);
bool offset_found = false;
for (b2a_offset.x = target_rect.x; b2a_offset.x < target_rect.z; b2a_offset.x += s_psm.bs.x)
for (b2a_offset.y = target_rect.y; b2a_offset.y < target_rect.w; b2a_offset.y += s_psm.bs.y)
{
for (b2a_offset.y = target_rect.y; b2a_offset.y < target_rect.w; b2a_offset.y += s_psm.bs.y)
for (b2a_offset.x = target_rect.x; b2a_offset.x < target_rect.z; b2a_offset.x += s_psm.bs.x)
{
const u32 a_candidate_bp = s_psm.info.bn(b2a_offset.x, b2a_offset.y, tbp, sbw);
if (sbp == a_candidate_bp)
@@ -778,12 +779,12 @@ void GSTextureCache::DirtyRectByPage(u32 sbp, u32 spsm, u32 sbw, Target* t, GSVe
if ((xblocks <= (src_info->pgs.x / src_info->bs.x) && yblocks <= (src_info->pgs.y / src_info->bs.y)) || req_depth_offset)
{
GSVector4i b2a_offset = GSVector4i::zero();
const GSVector4i target_rect = GSVector4i(0, 0, src_width, 2048);
const GSVector4i target_rect = GSVector4i(0, 0, src_info->pgs.x, src_info->pgs.y);
bool offset_found = false;
for (b2a_offset.x = target_rect.x; b2a_offset.x < target_rect.z; b2a_offset.x += src_info->bs.x)
for (b2a_offset.y = target_rect.y; b2a_offset.y < target_rect.w; b2a_offset.y += src_info->bs.y)
{
for (b2a_offset.y = target_rect.y; b2a_offset.y < target_rect.w; b2a_offset.y += src_info->bs.y)
for (b2a_offset.x = target_rect.x; b2a_offset.x < target_rect.z; b2a_offset.x += src_info->bs.x)
{
const u32 a_candidate_bp = src_info->info.bn(b2a_offset.x, b2a_offset.y, target_bp, src_pg_width);
if (sbp == a_candidate_bp)