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

110 lines
2.8 KiB
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_state_manager.hh"
#include "vk_vertex_buffer.hh"
#include "vk_storage_buffer.hh"
namespace blender::gpu {
VKStorageBuffer::VKStorageBuffer(int size, GPUUsageType usage, const char *name)
: StorageBuf(size, name), usage_(usage)
{
}
void VKStorageBuffer::update(const void *data)
{
ensure_allocated();
buffer_.update(data);
}
void VKStorageBuffer::ensure_allocated()
{
if (!buffer_.is_allocated()) {
allocate();
}
}
void VKStorageBuffer::allocate()
{
buffer_.create(size_in_bytes_,
usage_,
static_cast<VkBufferUsageFlagBits>(VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT |
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
VK_BUFFER_USAGE_TRANSFER_DST_BIT));
debug::object_label(buffer_.vk_handle(), name_);
}
void VKStorageBuffer::bind(int slot)
{
VKContext &context = *VKContext::get();
context.state_manager_get().storage_buffer_bind(*this, slot);
}
void VKStorageBuffer::bind(int slot, shader::ShaderCreateInfo::Resource::BindType bind_type)
{
VKContext &context = *VKContext::get();
VKShader *shader = static_cast<VKShader *>(context.shader);
ensure_allocated();
const VKShaderInterface &shader_interface = shader->interface_get();
const std::optional<VKDescriptorSet::Location> location =
shader_interface.descriptor_set_location(bind_type, slot);
if (location) {
shader->pipeline_get().descriptor_set_get().bind(*this, *location);
}
}
void VKStorageBuffer::unbind()
{
unbind_from_active_context();
}
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();
VkBufferCopy region = {};
region.srcOffset = src_offset;
region.dstOffset = dst_offset;
region.size = copy_size;
VKContext &context = *VKContext::get();
VKCommandBuffer &command_buffer = context.command_buffer_get();
command_buffer.copy(buffer_, src_vertex_buffer.vk_handle(), Span<VkBufferCopy>(&region, 1));
command_buffer.submit();
}
void VKStorageBuffer::async_flush_to_host()
{
GPU_memory_barrier(GPU_BARRIER_BUFFER_UPDATE);
}
void VKStorageBuffer::read(void *data)
{
ensure_allocated();
VKContext &context = *VKContext::get();
VKCommandBuffer &command_buffer = context.command_buffer_get();
command_buffer.submit();
buffer_.read(data);
}
} // namespace blender::gpu