f76ceddc98
On some platforms `VK_FORMAT_R8G8B8_*` are not supported as vertex buffers. The obvious workaround for this is to use `VK_FORMAT_R8G8B8A8_*`. Using unsupported vertex formats would crash Blender as it is not able to compile the graphics pipelines that use them. Known platforms are: - NVIDIA Mobile GPUs (Quadro M1000M) - AMD Polaris (open source drivers) This PR adds the initial workings for other unsupported vertex buffer formats we need to fix in the future. `VKDevice.workarounds.vertex_formats` contain booleans if the workaround for a specific format should be turned on (`r8g8b8 = true`). `VertexFormatConverter` can be used to identify if conversions are needed and perform the conversion. Pull Request: https://projects.blender.org/blender/blender/pulls/114572
55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
/* SPDX-FileCopyrightText: 2023 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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* Mimics old style OpenGL immediate mode drawing.
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*/
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#pragma once
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#include "MEM_guardedalloc.h"
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#include "gpu_immediate_private.hh"
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#include "gpu_vertex_format_private.h"
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#include "vk_buffer.hh"
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#include "vk_context.hh"
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#include "vk_data_conversion.hh"
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#include "vk_mem_alloc.h"
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#include "vk_resource_tracker.hh"
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#include "vk_vertex_attribute_object.hh"
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namespace blender::gpu {
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/* Size of internal buffer. */
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constexpr size_t DEFAULT_INTERNAL_BUFFER_SIZE = (4 * 1024 * 1024);
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class VKImmediate : public Immediate, VKResourceTracker<VKBuffer> {
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private:
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VKVertexAttributeObject vertex_attributes_;
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VkDeviceSize buffer_offset_ = 0;
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VkDeviceSize current_subbuffer_len_ = 0;
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VertexFormatConverter vertex_format_converter;
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public:
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VKImmediate();
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virtual ~VKImmediate();
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uchar *begin() override;
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void end() override;
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friend class VKVertexAttributeObject;
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private:
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VkDeviceSize subbuffer_offset_get();
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VkDeviceSize buffer_bytes_free();
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std::unique_ptr<VKBuffer> create_resource(VKContext &context) override;
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};
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} // namespace blender::gpu
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