5d132ac0c6
`GLBatch::draw_indirect` has additional overhead compared to `GLBatch::draw`, and can become a bottleneck in scenes that require many draw calls (ie. with too many unique meshes). The performance difference is almost exclusively caused by the `GL_COMMAND_BARRIER_BIT` barrier that happens on every call. This PR adds a `GPU_storagebuf_sync_as_indirect_buffer` function that can be used to place the barrier only once after filling the indirect buffer content. This function is a no-op in Vulkan and Metal since they don't need the barrier. Pull Request: https://projects.blender.org/blender/blender/pulls/117561
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
/* SPDX-FileCopyrightText: 2022 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup gpu
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*/
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#pragma once
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#include "GPU_texture.h"
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#include "gpu_storage_buffer_private.hh"
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#include "gpu_vertex_buffer_private.hh"
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#include "vk_bindable_resource.hh"
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#include "vk_buffer.hh"
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namespace blender::gpu {
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class VertBuf;
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class VKStorageBuffer : public StorageBuf, public VKBindableResource {
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GPUUsageType usage_;
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VKBuffer buffer_;
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public:
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VKStorageBuffer(int size, GPUUsageType usage, const char *name);
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void update(const void *data) override;
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void bind(int slot) override;
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void bind(int slot,
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shader::ShaderCreateInfo::Resource::BindType bind_type,
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const GPUSamplerState sampler_state) override;
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void unbind() override;
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void clear(uint32_t clear_value) override;
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void copy_sub(VertBuf *src, uint dst_offset, uint src_offset, uint copy_size) override;
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void read(void *data) override;
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void async_flush_to_host() override;
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void sync_as_indirect_buffer() override{/* No-Op.*/};
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VkBuffer vk_handle() const
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{
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return buffer_.vk_handle();
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}
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int64_t size_in_bytes() const
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{
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return buffer_.size_in_bytes();
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}
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void ensure_allocated();
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private:
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void allocate();
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};
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BLI_INLINE VKStorageBuffer *unwrap(StorageBuf *storage_buffer)
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{
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return static_cast<VKStorageBuffer *>(storage_buffer);
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}
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} // namespace blender::gpu
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