ef3ceb3629
This PR implements #126353; In short: keep discard list as part of swap chain images. This allows better determination when resources are actually not in use anymore. ## Resource pool Resource pools keep track of the resources for a swap chain image. In Blender this is a bit more complicated due to the way GPUContext work. A single thread can have multiple contexts. Some of them have a swap chain (GHOST Window) other don't (draw manager). The resource pool should be shared between the contexts running on the same thread. When opening multiple windows there are also multiple swap chains to consider. ### Discard pile Resource handles that are deleted and stored in the discard pile. When we are sure that these resources are not used on the GPU anymore these are destroyed. ### Reusable resources There are other resources as well like: - Descriptor sets - Descriptor pools ## Open issues There are some limitations that require future PRs to fix including: - Background rendering - Handling multiple windows - Improve CPU/GPU synchronization - Reuse staging buffers Pull Request: https://projects.blender.org/blender/blender/pulls/126353
124 lines
3.5 KiB
C++
124 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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#pragma once
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#include "gpu_context_private.hh"
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#include "GHOST_Types.h"
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#include "render_graph/vk_render_graph.hh"
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#include "vk_common.hh"
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#include "vk_debug.hh"
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#include "vk_descriptor_pools.hh"
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#include "vk_resource_pool.hh"
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namespace blender::gpu {
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class VKFrameBuffer;
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class VKVertexAttributeObject;
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class VKBatch;
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class VKStateManager;
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class VKShader;
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class VKThreadData;
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class VKContext : public Context, NonCopyable {
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private:
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VkExtent2D vk_extent_ = {};
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VkFormat swap_chain_format_ = {};
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GPUTexture *surface_texture_ = nullptr;
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void *ghost_context_;
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/* Reusable data. Stored inside context to limit reallocations. */
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render_graph::VKResourceAccessInfo access_info_ = {};
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bool is_init_ = false;
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VKThreadData &thread_data_;
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public:
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render_graph::VKRenderGraph &render_graph;
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VKContext(void *ghost_window, void *ghost_context, VKThreadData &thread_data);
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virtual ~VKContext();
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void activate() override;
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void deactivate() override;
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void begin_frame() override;
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void end_frame() override;
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void flush() override;
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void flush_render_graph();
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void finish() override;
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void memory_statistics_get(int *r_total_mem_kb, int *r_free_mem_kb) override;
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void debug_group_begin(const char *, int) override;
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void debug_group_end() override;
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bool debug_capture_begin(const char *title) override;
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void debug_capture_end() override;
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void *debug_capture_scope_create(const char *name) override;
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bool debug_capture_scope_begin(void *scope) override;
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void debug_capture_scope_end(void *scope) override;
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void debug_unbind_all_ubo() override;
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void debug_unbind_all_ssbo() override;
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bool has_active_framebuffer() const;
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void activate_framebuffer(VKFrameBuffer &framebuffer);
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void deactivate_framebuffer();
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VKFrameBuffer *active_framebuffer_get() const;
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/**
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* Ensure that the active framebuffer isn't rendering.
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*
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* Between `vkCmdBeginRendering` and `vkCmdEndRendering` the framebuffer is rendering. Dispatch
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* and transfer commands cannot be called between these commands. They can call this method to
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* ensure that the framebuffer is outside these calls.
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*/
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void rendering_end();
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render_graph::VKResourceAccessInfo &update_and_get_access_info();
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/**
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* Update the give shader data with the current state of the context.
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*/
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void update_pipeline_data(render_graph::VKPipelineData &r_pipeline_data);
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void update_pipeline_data(GPUPrimType primitive,
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VKVertexAttributeObject &vao,
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render_graph::VKPipelineData &r_pipeline_data);
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void sync_backbuffer();
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static VKContext *get()
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{
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return static_cast<VKContext *>(Context::get());
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}
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VKDescriptorPools &descriptor_pools_get();
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VKDescriptorSetTracker &descriptor_set_get();
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VKStateManager &state_manager_get() const;
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static void swap_buffers_pre_callback(const GHOST_VulkanSwapChainData *data);
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static void swap_buffers_post_callback();
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private:
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void swap_buffers_pre_handler(const GHOST_VulkanSwapChainData &data);
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void swap_buffers_post_handler();
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void update_pipeline_data(VKShader &shader,
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VkPipeline vk_pipeline,
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render_graph::VKPipelineData &r_pipeline_data);
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};
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BLI_INLINE bool operator==(const VKContext &a, const VKContext &b)
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{
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return static_cast<const void *>(&a) == static_cast<const void *>(&b);
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}
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} // namespace blender::gpu
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