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vkd3d: Optimise descriptor copying for Vulkan-backed heaps.

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Source descriptors are copied to separate arrays to facilitate use of
pre-initialised Vulkan structures, and allow arrayed writes where
possible.

Signed-off-by: Conor McCarthy <cmccarthy@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Conor McCarthy
2022-02-22 01:19:00 +10:00
committed by Alexandre Julliard
parent 2b71ea406f
commit 5e4f1e1ead
3 changed files with 329 additions and 29 deletions
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144
libs/vkd3d/device.c
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@@ -3556,6 +3556,127 @@ static void STDMETHODCALLTYPE d3d12_device_CreateSampler(ID3D12Device *iface,
d3d12_desc_write_atomic(d3d12_desc_from_cpu_handle(descriptor), &tmp, device);
}
static void flush_desc_writes(struct d3d12_desc_copy_location locations[][VKD3D_DESCRIPTOR_WRITE_BUFFER_SIZE],
struct d3d12_desc_copy_info *infos, struct d3d12_descriptor_heap *descriptor_heap, struct d3d12_device *device)
{
enum vkd3d_vk_descriptor_set_index set;
for (set = 0; set < VKD3D_SET_INDEX_COUNT; ++set)
{
if (!infos[set].count)
continue;
d3d12_desc_copy_vk_heap_range(locations[set], &infos[set], descriptor_heap, set, device);
infos[set].count = 0;
infos[set].uav_counter = false;
}
}
static void d3d12_desc_buffered_copy_atomic(struct d3d12_desc *dst, const struct d3d12_desc *src,
struct d3d12_desc_copy_location locations[][VKD3D_DESCRIPTOR_WRITE_BUFFER_SIZE],
struct d3d12_desc_copy_info *infos, struct d3d12_descriptor_heap *descriptor_heap, struct d3d12_device *device)
{
struct d3d12_desc_copy_location *location;
enum vkd3d_vk_descriptor_set_index set;
struct vkd3d_mutex *mutex;
mutex = d3d12_device_get_descriptor_mutex(device, src);
vkd3d_mutex_lock(mutex);
if (src->magic == VKD3D_DESCRIPTOR_MAGIC_FREE)
{
/* Source must be unlocked first, and therefore can't be used as a null source. */
static const struct d3d12_desc null = {0};
vkd3d_mutex_unlock(mutex);
d3d12_desc_write_atomic(dst, &null, device);
return;
}
set = vkd3d_vk_descriptor_set_index_from_vk_descriptor_type(src->vk_descriptor_type);
location = &locations[set][infos[set].count++];
location->src = *src;
if (location->src.magic & VKD3D_DESCRIPTOR_MAGIC_HAS_VIEW)
vkd3d_view_incref(location->src.u.view);
vkd3d_mutex_unlock(mutex);
infos[set].uav_counter |= (location->src.magic == VKD3D_DESCRIPTOR_MAGIC_UAV)
& !!location->src.u.view->vk_counter_view;
location->dst = dst;
if (infos[set].count == ARRAY_SIZE(locations[0]))
{
d3d12_desc_copy_vk_heap_range(locations[set], &infos[set], descriptor_heap, set, device);
infos[set].count = 0;
infos[set].uav_counter = false;
}
}
/* Some games, e.g. Control, copy a large number of descriptors per frame, so the
* speed of this function is critical. */
static void d3d12_device_vk_heaps_copy_descriptors(struct d3d12_device *device,
UINT dst_descriptor_range_count, const D3D12_CPU_DESCRIPTOR_HANDLE *dst_descriptor_range_offsets,
const UINT *dst_descriptor_range_sizes,
UINT src_descriptor_range_count, const D3D12_CPU_DESCRIPTOR_HANDLE *src_descriptor_range_offsets,
const UINT *src_descriptor_range_sizes)
{
struct d3d12_desc_copy_location locations[VKD3D_SET_INDEX_COUNT][VKD3D_DESCRIPTOR_WRITE_BUFFER_SIZE];
unsigned int dst_range_idx, dst_idx, src_range_idx, src_idx;
/* The locations array is relatively large, and often mostly empty. Keeping these
* values together in a separate array will likely result in fewer cache misses. */
struct d3d12_desc_copy_info infos[VKD3D_SET_INDEX_COUNT];
struct d3d12_descriptor_heap *descriptor_heap = NULL;
const struct d3d12_desc *src, *heap_base, *heap_end;
unsigned int dst_range_size, src_range_size;
struct d3d12_desc *dst;
descriptor_heap = vkd3d_gpu_descriptor_allocator_heap_from_descriptor(&device->gpu_descriptor_allocator,
d3d12_desc_from_cpu_handle(dst_descriptor_range_offsets[0]));
heap_base = (const struct d3d12_desc *)descriptor_heap->descriptors;
heap_end = heap_base + descriptor_heap->desc.NumDescriptors;
memset(infos, 0, sizeof(infos));
dst_range_idx = dst_idx = 0;
src_range_idx = src_idx = 0;
while (dst_range_idx < dst_descriptor_range_count && src_range_idx < src_descriptor_range_count)
{
dst_range_size = dst_descriptor_range_sizes ? dst_descriptor_range_sizes[dst_range_idx] : 1;
src_range_size = src_descriptor_range_sizes ? src_descriptor_range_sizes[src_range_idx] : 1;
dst = d3d12_desc_from_cpu_handle(dst_descriptor_range_offsets[dst_range_idx]);
src = d3d12_desc_from_cpu_handle(src_descriptor_range_offsets[src_range_idx]);
if (dst < heap_base || dst >= heap_end)
{
flush_desc_writes(locations, infos, descriptor_heap, device);
descriptor_heap = vkd3d_gpu_descriptor_allocator_heap_from_descriptor(&device->gpu_descriptor_allocator,
dst);
heap_base = (const struct d3d12_desc *)descriptor_heap->descriptors;
heap_end = heap_base + descriptor_heap->desc.NumDescriptors;
}
for (; dst_idx < dst_range_size && src_idx < src_range_size; src_idx++, dst_idx++)
{
d3d12_desc_buffered_copy_atomic(&dst[dst_idx], &src[src_idx], locations, infos, descriptor_heap, device);
}
if (dst_idx >= dst_range_size)
{
++dst_range_idx;
dst_idx = 0;
}
if (src_idx >= src_range_size)
{
++src_range_idx;
src_idx = 0;
}
}
flush_desc_writes(locations, infos, descriptor_heap, device);
}
#define VKD3D_DESCRIPTOR_OPTIMISED_COPY_MIN_COUNT 8
static void STDMETHODCALLTYPE d3d12_device_CopyDescriptors(ID3D12Device *iface,
UINT dst_descriptor_range_count, const D3D12_CPU_DESCRIPTOR_HANDLE *dst_descriptor_range_offsets,
const UINT *dst_descriptor_range_sizes,
@@ -3584,6 +3705,18 @@ static void STDMETHODCALLTYPE d3d12_device_CopyDescriptors(ID3D12Device *iface,
return;
}
if (!dst_descriptor_range_count)
return;
if (device->use_vk_heaps && (dst_descriptor_range_count > 1 || (dst_descriptor_range_sizes
&& dst_descriptor_range_sizes[0] >= VKD3D_DESCRIPTOR_OPTIMISED_COPY_MIN_COUNT)))
{
d3d12_device_vk_heaps_copy_descriptors(device, dst_descriptor_range_count, dst_descriptor_range_offsets,
dst_descriptor_range_sizes, src_descriptor_range_count, src_descriptor_range_offsets,
src_descriptor_range_sizes);
return;
}
dst_range_idx = dst_idx = 0;
src_range_idx = src_idx = 0;
while (dst_range_idx < dst_descriptor_range_count && src_range_idx < src_descriptor_range_count)
@@ -3620,6 +3753,17 @@ static void STDMETHODCALLTYPE d3d12_device_CopyDescriptorsSimple(ID3D12Device *i
iface, descriptor_count, dst_descriptor_range_offset.ptr, src_descriptor_range_offset.ptr,
descriptor_heap_type);
if (descriptor_count >= VKD3D_DESCRIPTOR_OPTIMISED_COPY_MIN_COUNT)
{
struct d3d12_device *device = impl_from_ID3D12Device(iface);
if (device->use_vk_heaps)
{
d3d12_device_vk_heaps_copy_descriptors(device, 1, &dst_descriptor_range_offset,
&descriptor_count, 1, &src_descriptor_range_offset, &descriptor_count);
return;
}
}
d3d12_device_CopyDescriptors(iface, 1, &dst_descriptor_range_offset, &descriptor_count,
1, &src_descriptor_range_offset, &descriptor_count, descriptor_heap_type);
}