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graphics: fix vertex and instance IDs for unpatched indirect draws

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This commit is contained in:
nmzik
2026-10-28 04:33:03 +01:00
parent 1be1c6c4f9
commit a833e1b735
10 changed files with 72 additions and 46 deletions
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src/graphics/guest_gpu/graphicsRun.cpp
+2 -3
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@@ -856,9 +856,8 @@ void CommandProcessor::DrawIndirectMulti(uint32_t data_offset, uint32_t max_coun
// NUM_INSTANCES keeps the last draw's instance count.
m_num_instances_addr = args_addr + static_cast<uint64_t>(draw_count - 1) * stride_in_bytes +
offsetof(vk::DrawIndirectCommand, instanceCount);
// The GPU reads the records if the shaders allow; the VS prolog loads the patched SGPRs from
// Vulkan's bases. With no SGPR patched, Vulkan applies the offsets, which matches while they
// are zero.
// The GPU reads the records if the shaders allow; the VS prolog removes Vulkan's bases
// from the index VGPRs and copies them only to the user SGPRs the packet patches.
DrawIndirectArgs records {args_addr, draw_count, stride_in_bytes};
if (IndirectDrawOffsets(registers, records.offsets) && (!indexed || m_index_buffer_size != 0) &&
(indexed ? executor.DrawIndex(m_submit_id, CurrentBuffer(),