958ec9f37f
Previously a storage buffer was used to store draw list commands as it matches already existing APIs. Unfortunately StorageBuffers prefers to be stored on the GPU device and would reduce the benefit of a dynamic draw list. This PR replaces the storage buffer with a regular buffer, which keeps more control where to store the buffer. Pull Request: https://projects.blender.org/blender/blender/pulls/117712
122 lines
3.5 KiB
C++
122 lines
3.5 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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#include "vk_batch.hh"
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#include "vk_context.hh"
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#include "vk_index_buffer.hh"
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#include "vk_state_manager.hh"
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#include "vk_storage_buffer.hh"
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#include "vk_vertex_attribute_object.hh"
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#include "vk_vertex_buffer.hh"
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namespace blender::gpu {
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void VKBatch::draw_setup()
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{
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/* Currently the pipeline is rebuild on each draw command. Clearing the dirty flag for
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* consistency with the internals of GPU module. */
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flag &= ~GPU_BATCH_DIRTY;
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/* Finalize graphics pipeline */
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VKContext &context = *VKContext::get();
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VKStateManager &state_manager = context.state_manager_get();
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VKIndexBuffer *index_buffer = index_buffer_get();
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const bool draw_indexed = index_buffer != nullptr;
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state_manager.apply_state();
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state_manager.apply_bindings();
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/*
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* The next statements are order dependent. VBOs and IBOs must be uploaded, before resources can
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* be bound. Uploading device located buffers flush the graphics pipeline and already bound
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* resources will be unbound.
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*/
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VKVertexAttributeObject vao;
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vao.update_bindings(context, *this);
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vao.ensure_vbos_uploaded();
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if (draw_indexed) {
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index_buffer->upload_data();
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index_buffer->bind(context);
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}
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vao.bind(context);
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context.bind_graphics_pipeline(prim_type, vao);
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}
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void VKBatch::draw(int vertex_first, int vertex_count, int instance_first, int instance_count)
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{
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draw_setup();
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VKContext &context = *VKContext::get();
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VKCommandBuffers &command_buffers = context.command_buffers_get();
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VKIndexBuffer *index_buffer = index_buffer_get();
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const bool draw_indexed = index_buffer != nullptr;
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if (draw_indexed) {
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command_buffers.draw_indexed(vertex_count,
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instance_count,
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vertex_first,
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index_buffer->index_start_get(),
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instance_first);
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}
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else {
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command_buffers.draw(vertex_first, vertex_count, instance_first, instance_count);
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}
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command_buffers.submit();
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}
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void VKBatch::draw_indirect(GPUStorageBuf *indirect_buf, intptr_t offset)
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{
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multi_draw_indirect(indirect_buf, 1, offset, 0);
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}
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void VKBatch::multi_draw_indirect(GPUStorageBuf *indirect_buf,
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const int count,
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const intptr_t offset,
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const intptr_t stride)
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{
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VKStorageBuffer &indirect_buffer = *unwrap(unwrap(indirect_buf));
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multi_draw_indirect(indirect_buffer.vk_handle(), count, offset, stride);
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}
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void VKBatch::multi_draw_indirect(const VkBuffer indirect_buffer,
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const int count,
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const intptr_t offset,
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const intptr_t stride)
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{
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draw_setup();
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VKContext &context = *VKContext::get();
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VKIndexBuffer *index_buffer = index_buffer_get();
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const bool draw_indexed = index_buffer != nullptr;
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VKCommandBuffers &command_buffers = context.command_buffers_get();
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if (draw_indexed) {
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command_buffers.draw_indexed_indirect(indirect_buffer, offset, count, stride);
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}
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else {
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command_buffers.draw_indirect(indirect_buffer, offset, count, stride);
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}
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command_buffers.submit();
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}
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VKVertexBuffer *VKBatch::vertex_buffer_get(int index)
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{
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return unwrap(verts_(index));
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}
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VKVertexBuffer *VKBatch::instance_buffer_get(int index)
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{
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return unwrap(inst_(index));
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}
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VKIndexBuffer *VKBatch::index_buffer_get()
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{
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return unwrap(unwrap(elem));
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}
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} // namespace blender::gpu
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