458faa6486
This PR allows users to select a GPU backend. In the system tab of the user preferences the GPU backend can be selected in the `Display Graphics` panel. It will require a restart of Blender before the changes become effective. During startup minimum requirements are checked. Blender will switch automatically to OpenGL when no compatible Vulkan device could be detected. A dialog will be shown to inform the user. The setting of the in the `Display Graphics` panel are still overridden when blender is started using the `--gpu-backend` option. When starting blender with `--debug-gpu` the backend detection will print to the console. See PR for detailed information and screenshots of the UI. Implements #126504 Pull Request: https://projects.blender.org/blender/blender/pulls/126545
110 lines
2.8 KiB
C++
110 lines
2.8 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_backend.hh"
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#ifdef WITH_RENDERDOC
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# include "renderdoc_api.hh"
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#endif
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#include "vk_common.hh"
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#include "vk_device.hh"
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#include "shaderc/shaderc.hpp"
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namespace blender::gpu {
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class VKContext;
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class VKDescriptorSet;
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class VKDescriptorSetTracker;
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class VKBackend : public GPUBackend {
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private:
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shaderc::Compiler shaderc_compiler_;
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#ifdef WITH_RENDERDOC
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renderdoc::api::Renderdoc renderdoc_api_;
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#endif
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public:
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/* Global instance to device handles. */
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VKDevice device;
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VKBackend()
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{
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platform_init();
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}
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virtual ~VKBackend()
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{
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VKBackend::platform_exit();
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}
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/**
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* Does the running platform contain any device that meets the minimum requirements to start the
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* Vulkan backend.
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*
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* Function is used to validate that a Blender UI can be started. It calls vulkan API commands
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* directly to ensure no parts of Blender needs to be initialized.
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*/
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static bool is_supported();
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void delete_resources() override;
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void samplers_update() override;
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void compute_dispatch(int groups_x_len, int groups_y_len, int groups_z_len) override;
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void compute_dispatch_indirect(StorageBuf *indirect_buf) override;
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Context *context_alloc(void *ghost_window, void *ghost_context) override;
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Batch *batch_alloc() override;
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DrawList *drawlist_alloc(int list_length) override;
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Fence *fence_alloc() override;
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FrameBuffer *framebuffer_alloc(const char *name) override;
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IndexBuf *indexbuf_alloc() override;
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PixelBuffer *pixelbuf_alloc(size_t size) override;
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QueryPool *querypool_alloc() override;
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Shader *shader_alloc(const char *name) override;
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Texture *texture_alloc(const char *name) override;
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UniformBuf *uniformbuf_alloc(size_t size, const char *name) override;
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StorageBuf *storagebuf_alloc(size_t size, GPUUsageType usage, const char *name) override;
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VertBuf *vertbuf_alloc() override;
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/* Render Frame Coordination --
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* Used for performing per-frame actions globally */
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void render_begin() override;
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void render_end() override;
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void render_step() override;
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bool debug_capture_begin(const char *title);
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void debug_capture_end();
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shaderc::Compiler &get_shaderc_compiler();
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static VKBackend &get()
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{
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return *static_cast<VKBackend *>(GPUBackend::get());
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}
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static void platform_init(const VKDevice &device);
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static void capabilities_init(VKDevice &device);
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private:
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static void detect_workarounds(VKDevice &device);
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static void platform_init();
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static void platform_exit();
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/* These classes are allowed to modify the global device. */
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friend class VKContext;
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friend class VKDescriptorSet;
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friend class VKDescriptorSetTracker;
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};
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} // namespace blender::gpu
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