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Vulkan synchronization fixes (#2386)

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* Fix out of bounds index for unknown device types

* Vulkan: Insert barrier before image host reads

* Vulkan: Make commands wait for the wait semaphore

Making commands wait at BOTTOM_OF_PIPE is a no-op, resulting in instant execution

* Vulkan: Insert barrier between views/dispatches instead of waiting on the host

* Vulkan: Fix determination of access flag from image layout

This fixes two write-after-write races with copy commands after a layout transition to VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL

* Add BGFX_MAX_FRAME_LATENCY define

Affected backends either used a magic value of 3 or defined their own XX_MAX_FRAMES_IN_FLIGHT to be 3

* Vulkan: Include indirect draw in pipeline barrier

* Vulkan: honor init.resolution.numBackBuffers for swapchain size

* Make max frame latency configurable at compile time
This commit is contained in:
pezcode
2021-02-12 05:29:52 +01:00
committed by GitHub
parent 0123d43c96
commit f983367d75
9 changed files with 89 additions and 50 deletions
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src/renderer_d3d12.cpp
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@@ -954,7 +954,7 @@ namespace bgfx { namespace d3d12
m_scd.alphaMode = DXGI_ALPHA_MODE_IGNORE;
m_scd.flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
m_scd.maxFrameLatency = bx::min<uint8_t>(_init.resolution.maxFrameLatency, 3);
m_scd.maxFrameLatency = bx::min<uint8_t>(_init.resolution.maxFrameLatency, BGFX_CONFIG_MAX_FRAME_LATENCY);
m_scd.nwh = g_platformData.nwh;
m_scd.ndt = g_platformData.ndt;
m_scd.windowed = true;