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vk_stream_buffer: Implement a stream buffer

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This manages two kinds of streaming buffers: one for unified memory
models and one for dedicated GPUs. The first one skips the copy from the
staging buffer to the real buffer, since it creates an unified buffer.

This implementation waits for all fences to finish their operation
before "invalidating". This is suboptimal since it should allocate
another buffer or start searching from the beginning. There is room for
improvement here.

This could also handle AMD's "pinned" memory (a heap with 256 MiB) that
seems to be designed for buffer streaming.
This commit is contained in:
ReinUsesLisp
2019-02-24 04:22:33 -03:00
parent 281a8bf259
commit 33a0597603
3 changed files with 200 additions and 1 deletions
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4
src/video_core/CMakeLists.txt
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@ -111,7 +111,9 @@ if (ENABLE_VULKAN)
renderer_vulkan/vk_resource_manager.cpp
renderer_vulkan/vk_resource_manager.h
renderer_vulkan/vk_scheduler.cpp
renderer_vulkan/vk_scheduler.h)
renderer_vulkan/vk_scheduler.h
renderer_vulkan/vk_stream_buffer.cpp
renderer_vulkan/vk_stream_buffer.h)
target_include_directories(video_core PRIVATE ../../externals/Vulkan-Headers/include)
target_compile_definitions(video_core PRIVATE HAS_VULKAN)