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test/source/blender/gpu/vulkan/vk_storage_buffer.cc

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C++

/* SPDX-FileCopyrightText: 2022 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup gpu
*/
#include "vk_shader.hh"
#include "vk_shader_interface.hh"
#include "vk_staging_buffer.hh"
#include "vk_state_manager.hh"
#include "vk_vertex_buffer.hh"
#include "vk_storage_buffer.hh"
namespace blender::gpu {
VKStorageBuffer::VKStorageBuffer(size_t size, GPUUsageType usage, const char *name)
: StorageBuf(size, name), usage_(usage)
{
UNUSED_VARS(usage_);
}
void VKStorageBuffer::update(const void *data)
{
VKContext &context = *VKContext::get();
ensure_allocated();
VKStagingBuffer staging_buffer(buffer_, VKStagingBuffer::Direction::HostToDevice);
staging_buffer.host_buffer_get().update_immediately(data);
staging_buffer.copy_to_device(context);
}
void VKStorageBuffer::ensure_allocated()
{
if (!buffer_.is_allocated()) {
allocate();
}
}
void VKStorageBuffer::allocate()
{
const VkBufferUsageFlags buffer_usage_flags = VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT |
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
VK_BUFFER_USAGE_TRANSFER_SRC_BIT |
VK_BUFFER_USAGE_TRANSFER_DST_BIT;
buffer_.create(size_in_bytes_,
buffer_usage_flags,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
VkMemoryPropertyFlags(0),
VmaAllocationCreateFlags(0));
BLI_assert(buffer_.is_allocated());
debug::object_label(buffer_.vk_handle(), name_);
}
void VKStorageBuffer::bind(int slot)
{
VKContext &context = *VKContext::get();
context.state_manager_get().storage_buffer_bind(
BindSpaceStorageBuffers::Type::StorageBuffer, this, slot);
}
void VKStorageBuffer::unbind()
{
VKContext *context = VKContext::get();
if (context) {
context->state_manager_get().storage_buffer_unbind(this);
}
}
void VKStorageBuffer::clear(uint32_t clear_value)
{
ensure_allocated();
VKContext &context = *VKContext::get();
buffer_.clear(context, clear_value);
}
void VKStorageBuffer::copy_sub(VertBuf *src, uint dst_offset, uint src_offset, uint copy_size)
{
ensure_allocated();
VKVertexBuffer &src_vertex_buffer = *unwrap(src);
src_vertex_buffer.upload();
render_graph::VKCopyBufferNode::CreateInfo copy_buffer = {};
copy_buffer.src_buffer = src_vertex_buffer.vk_handle();
copy_buffer.dst_buffer = vk_handle();
copy_buffer.region.srcOffset = src_offset;
copy_buffer.region.dstOffset = dst_offset;
copy_buffer.region.size = copy_size;
VKContext &context = *VKContext::get();
context.render_graph().add_node(copy_buffer);
}
void VKStorageBuffer::async_flush_to_host()
{
GPU_memory_barrier(GPU_BARRIER_BUFFER_UPDATE);
}
void VKStorageBuffer::read(void *data)
{
ensure_allocated();
VKContext &context = *VKContext::get();
VKStagingBuffer staging_buffer(buffer_, VKStagingBuffer::Direction::DeviceToHost);
staging_buffer.copy_from_device(context);
staging_buffer.host_buffer_get().read(context, data);
}
} // namespace blender::gpu