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GS/HW: Fix Tex in RT Merge Targets crashing. 

Check if src->m_from_target is actually null so it doesn't cause any access violations when reading.

Fixes Dirge of Cerberus crashing with Merge Targets enabled.
This commit is contained in:
lightningterror 2023-10-28 17:07:47 +02:00
parent ba27d3ff79
commit 3b3fb28412
1 changed files with 1 additions and 1 deletions
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2
pcsx2/GS/Renderers/HW/GSRendererHW.cpp
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@ -2317,7 +2317,7 @@ void GSRendererHW::Draw()
// create that target, because the clear isn't black, it'll hang around and never get invalidated.
const bool is_square = (t_size.y == t_size.x) && m_r.w >= 1023 && PrimitiveCoversWithoutGaps();
const bool is_clear = is_possible_mem_clear && is_square;
const bool possible_shuffle = draw_sprite_tex && ((src && src->m_target && src->m_from_target->m_32_bits_fmt && GSLocalMemory::m_psm[src->m_from_target_TEX0.PSM].depth == GSLocalMemory::m_psm[m_cached_ctx.TEX0.PSM].depth) &&
const bool possible_shuffle = draw_sprite_tex && ((src && src->m_target && src->m_from_target && src->m_from_target->m_32_bits_fmt && GSLocalMemory::m_psm[src->m_from_target_TEX0.PSM].depth == GSLocalMemory::m_psm[m_cached_ctx.TEX0.PSM].depth) &&
GSLocalMemory::m_psm[m_cached_ctx.TEX0.PSM].bpp == 16 && GSLocalMemory::m_psm[m_cached_ctx.FRAME.PSM].bpp == 16) || IsPossibleChannelShuffle();
rt = g_texture_cache->LookupTarget(FRAME_TEX0, t_size, target_scale, GSTextureCache::RenderTarget, true,
fm, false, force_preload, preserve_rt_rgb, preserve_rt_alpha, unclamped_draw_rect, possible_shuffle, is_possible_mem_clear && FRAME_TEX0.TBP0 != m_cached_ctx.ZBUF.Block());