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Allow GPUs without rebar to open multiple RenderDoc captures

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This commit is contained in:
Kelebek1
2023-09-19 21:39:22 +01:00
parent df56ecc318
commit f585dec48d
4 changed files with 59 additions and 14 deletions
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33
src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp
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@ -24,25 +24,38 @@ using namespace Common::Literals;
// Maximum potential alignment of a Vulkan buffer
constexpr VkDeviceSize MAX_ALIGNMENT = 256;
// Maximum size to put elements in the stream buffer
constexpr VkDeviceSize MAX_STREAM_BUFFER_REQUEST_SIZE = 8_MiB;
// Stream buffer size in bytes
constexpr VkDeviceSize STREAM_BUFFER_SIZE = 128_MiB;
constexpr VkDeviceSize REGION_SIZE = STREAM_BUFFER_SIZE / StagingBufferPool::NUM_SYNCS;
constexpr VkDeviceSize MAX_STREAM_BUFFER_SIZE = 128_MiB;
size_t Region(size_t iterator) noexcept {
return iterator / REGION_SIZE;
size_t GetStreamBufferSize(const Device& device) {
VkDeviceSize size{0};
if (device.HasDebuggingToolAttached()) {
ForEachDeviceLocalHostVisibleHeap(device, [&size](size_t index, VkMemoryHeap& heap) {
size = std::max(size, heap.size);
});
// If rebar is not supported, cut the max heap size to 40%. This will allow 2 captures to be
// loaded at the same time in RenderDoc. If rebar is supported, this shouldn't be an issue
// as the heap will be much larger.
if (size <= 256_MiB) {
size = size * 40 / 100;
}
} else {
size = MAX_STREAM_BUFFER_SIZE;
}
return std::min(Common::AlignUp(size, MAX_ALIGNMENT), MAX_STREAM_BUFFER_SIZE);
}
} // Anonymous namespace
StagingBufferPool::StagingBufferPool(const Device& device_, MemoryAllocator& memory_allocator_,
Scheduler& scheduler_)
: device{device_}, memory_allocator{memory_allocator_}, scheduler{scheduler_} {
: device{device_}, memory_allocator{memory_allocator_}, scheduler{scheduler_},
stream_buffer_size{GetStreamBufferSize(device)}, region_size{stream_buffer_size /
StagingBufferPool::NUM_SYNCS} {
VkBufferCreateInfo stream_ci = {
.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
.pNext = nullptr,
.flags = 0,
.size = STREAM_BUFFER_SIZE,
.size = stream_buffer_size,
.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT |
VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_STORAGE_BUFFER_BIT,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
@ -63,7 +76,7 @@ StagingBufferPool::StagingBufferPool(const Device& device_, MemoryAllocator& mem
StagingBufferPool::~StagingBufferPool() = default;
StagingBufferRef StagingBufferPool::Request(size_t size, MemoryUsage usage, bool deferred) {
if (!deferred && usage == MemoryUsage::Upload && size <= MAX_STREAM_BUFFER_REQUEST_SIZE) {
if (!deferred && usage == MemoryUsage::Upload && size <= region_size) {
return GetStreamBuffer(size);
}
return GetStagingBuffer(size, usage, deferred);
@ -101,7 +114,7 @@ StagingBufferRef StagingBufferPool::GetStreamBuffer(size_t size) {
used_iterator = iterator;
free_iterator = std::max(free_iterator, iterator + size);
if (iterator + size >= STREAM_BUFFER_SIZE) {
if (iterator + size >= stream_buffer_size) {
std::fill(sync_ticks.begin() + Region(used_iterator), sync_ticks.begin() + NUM_SYNCS,
current_tick);
used_iterator = 0;

5
src/video_core/renderer_vulkan/vk_staging_buffer_pool.h
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@ -90,6 +90,9 @@ private:
void ReleaseCache(MemoryUsage usage);
void ReleaseLevel(StagingBuffersCache& cache, size_t log2);
size_t Region(size_t iter) const noexcept {
return iter / region_size;
}
const Device& device;
MemoryAllocator& memory_allocator;
@ -97,6 +100,8 @@ private:
vk::Buffer stream_buffer;
std::span<u8> stream_pointer;
VkDeviceSize stream_buffer_size;
VkDeviceSize region_size;
size_t iterator = 0;
size_t used_iterator = 0;