GS/HW: Avoid detecting shuffles as source of truth for target format

pcsx2/GS/Renderers/HW/GSRendererHW.cpp

@@ -3939,7 +3939,8 @@ void GSRendererHW::Draw()
 
 			if (next_ctx.FRAME.Block() == FRAME_TEX0.TBP0 && next_ctx.FRAME.PSM != FRAME_TEX0.PSM)
 				FRAME_TEX0.PSM = next_ctx.FRAME.PSM;
-			else if (next_ctx.TEX0.TBP0 == FRAME_TEX0.TBP0 && next_ctx.TEX0.PSM != FRAME_TEX0.PSM)
+			// Be careful of the next draw being a channel shuffle!
+			else if (next_ctx.TEX0.TBP0 == FRAME_TEX0.TBP0 && next_ctx.TEX0.PSM != FRAME_TEX0.PSM && GSLocalMemory::m_psm[next_ctx.TEX0.PSM].trbpp >= 16)
 				FRAME_TEX0.PSM = next_ctx.TEX0.PSM;
 			else
 				FRAME_TEX0.PSM = PSMCT32; // Guess full color if no upcoming hint, it'll fix itself later.

pcsx2/GS/Renderers/HW/GSTextureCache.cpp

@@ -2580,12 +2580,21 @@ GSTextureCache::Target* GSTextureCache::LookupDrawTarget(GIFRegTEX0 TEX0, const
 			{
 				// Some games misuse the scissor so it ends up valid 1 pixel over, which causes hell for us. So check if it still overlaps without the extra pixel.
 				const GSVector4i adjusted_valid = GSVector4i(t->m_valid.x, t->m_valid.y, std::min(t->m_valid.z, static_cast<int>(t->m_TEX0.TBW) * 64), t->m_valid.w - 1);
-				const u32 adjusted_endblock = GSLocalMemory::GetEndBlockAddress(t->m_TEX0.TBP0, t->m_TEX0.TBW, t->m_TEX0.PSM, adjusted_valid);
+				u32 adjusted_endblock = GSLocalMemory::GetUnwrappedEndBlockAddress(t->m_TEX0.TBP0, t->m_TEX0.TBW, t->m_TEX0.PSM, adjusted_valid);
 				if (adjusted_endblock <= bp)
 				{
 					i++;
 					continue;
 				}
+				const GSVector4i adjusted_rect = GSVector4i(min_rect.x, min_rect.y, std::min(min_rect.z, static_cast<int>(t->m_TEX0.TBW) * 64), min_rect.w - 1);
+				// Also check the offset from the bp to the current request to see if it overlaps the begining of the selected target.
+				adjusted_endblock = GSLocalMemory::GetUnwrappedEndBlockAddress(TEX0.TBP0, TEX0.TBW, TEX0.PSM, adjusted_rect);
+				if (adjusted_endblock <= t->m_TEX0.TBP0)
+				{
+					i++;
+					continue;
+				}
+
 				const GSLocalMemory::psm_t& s_psm = GSLocalMemory::m_psm[TEX0.PSM];
 				const u32 widthpage_offset = (std::abs(static_cast<int>(bp - t->m_TEX0.TBP0)) >> 5) % std::max(t->m_TEX0.TBW, 1U);
 				const bool is_aligned_ok = widthpage_offset == 0 || ((min_rect.width() <= static_cast<int>((t->m_TEX0.TBW - widthpage_offset) * 64) && (t->m_TEX0.TBW == TEX0.TBW || TEX0.TBW == 1)) && bp >= t->m_TEX0.TBP0);