7dbe689b63
In Vulkan (and Metal) it is not possible to use a global as point size. It needs to be set for each vertex when drawing points. Blender has specialized shaders for that, but not all code respect those shaders. This PR will add an assert inside the vulkan backend when incorrect usage of shaders are detected. Pull Request: https://projects.blender.org/blender/blender/pulls/112906
79 lines
2.3 KiB
C++
79 lines
2.3 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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#pragma once
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#include "BLI_array.hh"
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#include "gpu_shader_create_info.hh"
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#include "gpu_shader_interface.hh"
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#include "BLI_array.hh"
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#include "vk_push_constants.hh"
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namespace blender::gpu {
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class VKShaderInterface : public ShaderInterface {
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private:
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/**
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* Offset when searching for a shader input based on a binding number.
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*
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* When shaders combine images and samplers, the images have to be offset to find the correct
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* shader input. Both textures and images are stored in the uniform list and their ID can be
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* overlapping.
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*/
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uint32_t image_offset_ = 0;
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Array<VKDescriptorSet::Location> descriptor_set_locations_;
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VKPushConstants::Layout push_constants_layout_;
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shader::BuiltinBits shader_builtins_;
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public:
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VKShaderInterface() = default;
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void init(const shader::ShaderCreateInfo &info);
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const VKDescriptorSet::Location descriptor_set_location(
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const shader::ShaderCreateInfo::Resource &resource) const;
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const std::optional<VKDescriptorSet::Location> descriptor_set_location(
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const shader::ShaderCreateInfo::Resource::BindType &bind_type, int binding) const;
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/** Get the Layout of the shader. */
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const VKPushConstants::Layout &push_constants_layout_get() const
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{
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return push_constants_layout_;
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}
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shader::Type get_attribute_type(int location) const
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{
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return static_cast<shader::Type>(attr_types_[location]);
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}
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bool is_point_shader() const
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{
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return (shader_builtins_ & shader::BuiltinBits::POINT_SIZE) == shader::BuiltinBits::POINT_SIZE;
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}
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private:
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/**
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* Retrieve the shader input for the given resource.
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*
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* nullptr is returned when resource could not be found.
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* Should only happen when still developing the Vulkan shader.
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*/
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const ShaderInput *shader_input_get(const shader::ShaderCreateInfo::Resource &resource) const;
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const ShaderInput *shader_input_get(
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const shader::ShaderCreateInfo::Resource::BindType &bind_type, int binding) const;
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const VKDescriptorSet::Location descriptor_set_location(const ShaderInput *shader_input) const;
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void descriptor_set_location_update(const ShaderInput *shader_input,
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const VKDescriptorSet::Location location);
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};
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} // namespace blender::gpu
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