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2025-09-04 10:54:47 +08:00
commit 6bc8f61b18
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+/* Copyright (c) 2023-2025, NVIDIA CORPORATION. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "core/hpp_image_view.h"
+#include "common/hpp_vk_common.h"
+#include "core/device.h"
+#include "core/hpp_image.h"
+#include <vulkan/vulkan_format_traits.hpp>
+
+namespace vkb
+{
+namespace core
+{
+HPPImageView::HPPImageView(vkb::core::HPPImage &img,
+                           vk::ImageViewType    view_type,
+                           vk::Format           format,
+                           uint32_t             mip_level,
+                           uint32_t             array_layer,
+                           uint32_t             n_mip_levels,
+                           uint32_t             n_array_layers) :
+    VulkanResource{nullptr, &img.get_device()}, image{&img}, format{format}
+{
+	if (format == vk::Format::eUndefined)
+	{
+		this->format = format = image->get_format();
+	}
+
+	subresource_range = vk::ImageSubresourceRange{.aspectMask     = (std::string(vk::componentName(format, 0)) == "D") ? vk::ImageAspectFlagBits::eDepth : vk::ImageAspectFlagBits::eColor,
+	                                              .baseMipLevel   = mip_level,
+	                                              .levelCount     = n_mip_levels == 0 ? image->get_subresource().mipLevel : n_mip_levels,
+	                                              .baseArrayLayer = array_layer,
+	                                              .layerCount     = n_array_layers == 0 ? image->get_subresource().arrayLayer : n_array_layers};
+
+	vk::ImageViewCreateInfo image_view_create_info{
+	    .image = image->get_handle(), .viewType = view_type, .format = format, .subresourceRange = subresource_range};
+
+	set_handle(get_device().get_handle().createImageView(image_view_create_info));
+
+	// Register this image view to its image
+	// in order to be notified when it gets moved
+	image->get_views().emplace(this);
+}
+
+HPPImageView::HPPImageView(HPPImageView &&other) :
+    VulkanResource{std::move(other)}, image{other.image}, format{other.format}, subresource_range{other.subresource_range}
+{
+	// Remove old view from image set and add this new one
+	auto &views = image->get_views();
+	views.erase(&other);
+	views.emplace(this);
+
+	other.set_handle(nullptr);
+}
+
+HPPImageView::~HPPImageView()
+{
+	if (get_handle())
+	{
+		get_device().get_handle().destroyImageView(get_handle());
+	}
+}
+
+vk::Format HPPImageView::get_format() const
+{
+	return format;
+}
+
+const vkb::core::HPPImage &HPPImageView::get_image() const
+{
+	assert(image && "vkb::core::HPPImage view is referring an invalid image");
+	return *image;
+}
+
+void HPPImageView::set_image(vkb::core::HPPImage &img)
+{
+	image = &img;
+}
+
+vk::ImageSubresourceLayers HPPImageView::get_subresource_layers() const
+{
+	return vk::ImageSubresourceLayers{
+	    subresource_range.aspectMask, subresource_range.baseMipLevel, subresource_range.baseArrayLayer, subresource_range.layerCount};
+}
+
+vk::ImageSubresourceRange HPPImageView::get_subresource_range() const
+{
+	return subresource_range;
+}
+
+}        // namespace core
+}        // namespace vkb