6920c690f1
Component swizzling is part of an image view and localized in the code. With component swizzling a different channel (or 0 or 1) can be read when the component is accessed. Pull Request: https://projects.blender.org/blender/blender/pulls/112273
66 lines
2.3 KiB
C++
66 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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#include "vk_image_view.hh"
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#include "vk_backend.hh"
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#include "vk_debug.hh"
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#include "vk_device.hh"
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#include "vk_memory.hh"
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#include "vk_texture.hh"
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namespace blender::gpu {
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VKImageView::VKImageView(VKTexture &texture,
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eImageViewUsage usage,
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IndexRange layer_range,
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IndexRange mip_range,
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bool use_stencil,
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StringRefNull name)
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{
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const VkImageAspectFlagBits allowed_bits = static_cast<VkImageAspectFlagBits>(
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VK_IMAGE_ASPECT_COLOR_BIT |
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(use_stencil ? VK_IMAGE_ASPECT_STENCIL_BIT : VK_IMAGE_ASPECT_DEPTH_BIT));
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VkImageAspectFlagBits image_aspect = static_cast<VkImageAspectFlagBits>(
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(to_vk_image_aspect_flag_bits(texture.format_get()) & allowed_bits));
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VK_ALLOCATION_CALLBACKS
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VkImageViewCreateInfo image_view_info = {};
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image_view_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
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image_view_info.image = texture.vk_image_handle();
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image_view_info.viewType = to_vk_image_view_type(texture.type_get(), usage);
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image_view_info.format = to_vk_format(texture.format_get());
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image_view_info.components = texture.vk_component_mapping_get();
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image_view_info.subresourceRange.aspectMask = image_aspect;
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image_view_info.subresourceRange.baseMipLevel = mip_range.first();
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image_view_info.subresourceRange.levelCount = mip_range.size();
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image_view_info.subresourceRange.baseArrayLayer = layer_range.first();
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image_view_info.subresourceRange.layerCount = layer_range.size();
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const VKDevice &device = VKBackend::get().device_get();
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vkCreateImageView(
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device.device_get(), &image_view_info, vk_allocation_callbacks, &vk_image_view_);
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debug::object_label(vk_image_view_, name.c_str());
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}
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VKImageView::VKImageView(VKImageView &&other)
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{
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vk_image_view_ = other.vk_image_view_;
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other.vk_image_view_ = VK_NULL_HANDLE;
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}
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VKImageView::~VKImageView()
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{
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if (vk_image_view_ != VK_NULL_HANDLE) {
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VK_ALLOCATION_CALLBACKS
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const VKDevice &device = VKBackend::get().device_get();
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vkDestroyImageView(device.device_get(), vk_image_view_, vk_allocation_callbacks);
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}
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}
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} // namespace blender::gpu
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