| // Copyright (c) 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "gpu/vulkan/vulkan_image_view.h" |
| |
| #include "base/logging.h" |
| #include "gpu/vulkan/vulkan_device_queue.h" |
| |
| namespace gpu { |
| |
| namespace { |
| const VkImageAspectFlags kAspectFlags[] = { |
| // IMAGE_TYPE_COLOR, |
| VK_IMAGE_ASPECT_COLOR_BIT, |
| |
| // IMAGE_TYPE_DEPTH, |
| VK_IMAGE_ASPECT_DEPTH_BIT, |
| |
| // IMAGE_TYPE_STENCIL, |
| VK_IMAGE_ASPECT_STENCIL_BIT, |
| |
| // IMAGE_TYPE_DEPTH_STENCIL, |
| VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT, |
| }; |
| static_assert(arraysize(kAspectFlags) == VulkanImageView::NUM_IMAGE_TYPES, |
| "Array size for kAspectFlags must match image types."); |
| } // namespace |
| |
| VulkanImageView::VulkanImageView(VulkanDeviceQueue* device_queue) |
| : device_queue_(device_queue) {} |
| |
| VulkanImageView::~VulkanImageView() { |
| DCHECK_EQ(static_cast<VkImageView>(VK_NULL_HANDLE), handle_); |
| DCHECK_EQ(IMAGE_TYPE_INVALID, image_type_); |
| } |
| |
| bool VulkanImageView::Initialize(VkImage image, |
| VkImageViewType image_view_type, |
| ImageType image_type, |
| VkFormat format, |
| uint32_t width, |
| uint32_t height, |
| uint32_t base_mip_level, |
| uint32_t num_mips, |
| uint32_t base_layer_level, |
| uint32_t num_layers) { |
| DCHECK_GT(image_type, IMAGE_TYPE_INVALID); |
| DCHECK_LT(image_type, NUM_IMAGE_TYPES); |
| VkImageSubresourceRange image_subresource_range = {}; |
| image_subresource_range.aspectMask = kAspectFlags[image_type]; |
| image_subresource_range.baseMipLevel = base_mip_level; |
| image_subresource_range.levelCount = num_mips; |
| image_subresource_range.baseArrayLayer = base_layer_level; |
| image_subresource_range.layerCount = num_layers; |
| |
| VkImageViewCreateInfo image_view_create_info = {}; |
| image_view_create_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO; |
| image_view_create_info.image = image; |
| image_view_create_info.viewType = image_view_type; |
| image_view_create_info.format = format; |
| image_view_create_info.components = { |
| VK_COMPONENT_SWIZZLE_IDENTITY, VK_COMPONENT_SWIZZLE_IDENTITY, |
| VK_COMPONENT_SWIZZLE_IDENTITY, VK_COMPONENT_SWIZZLE_IDENTITY}; |
| image_view_create_info.subresourceRange = image_subresource_range; |
| |
| VkResult result = |
| vkCreateImageView(device_queue_->GetVulkanDevice(), |
| &image_view_create_info, nullptr, &handle_); |
| if (VK_SUCCESS != result) { |
| DLOG(ERROR) << "vkCreateImageView() failed: " << result; |
| return false; |
| } |
| |
| image_type_ = image_type; |
| width_ = width; |
| height_ = height; |
| mips_ = num_mips; |
| layers_ = num_layers; |
| return true; |
| } |
| |
| void VulkanImageView::Destroy() { |
| if (VK_NULL_HANDLE != handle_) { |
| vkDestroyImageView(device_queue_->GetVulkanDevice(), handle_, nullptr); |
| image_type_ = IMAGE_TYPE_INVALID; |
| handle_ = VK_NULL_HANDLE; |
| } |
| } |
| |
| } // namespace gpu |