#include <Image.h>
Inherits AZ::RHI::Resource.
Public Member Functions | |
| AZ_CLASS_ALLOCATOR (Image, AZ::SystemAllocator, 0) | |
| AZ_RTTI (Image, "{39FFE66C-805A-41AD-9092-91327D51F64B}", Resource) | |
| AZ_RHI_MULTI_DEVICE_OBJECT_GETTER (Image) | |
| const ImageDescriptor & | GetDescriptor () const |
| Ptr< ImageView > | BuildImageView (const ImageViewDescriptor &imageViewDescriptor) |
| Returns the multi-device DeviceImageView. | |
| void | GetSubresourceLayout (ImageSubresourceLayout &subresourceLayout, ImageAspectFlags aspectFlags=ImageAspectFlags::All) const |
| HardwareQueueClassMask | GetSupportedQueueMask () const |
| const ImageFrameAttachment * | GetFrameAttachment () const |
| uint32_t | GetResidentMipLevel () const |
| bool | IsStreamable () const |
| Returns whether the image has sub-resources which can be evicted from or streamed into the device memory. | |
| ImageAspectFlags | GetAspectFlags () const |
| Returns the aspects that are included in the image. | |
| const HashValue64 | GetHash () const |
| Get the hash associated with the passed image descriptor. | |
| void | Shutdown () override final |
| Shuts down the resource by detaching it from its parent pool. | |
| bool | IsInResourceCache (const ImageViewDescriptor &imageViewDescriptor) |
| Returns true if the DeviceResourceView is in the cache of all single device images. | |
 Public Member Functions inherited from AZ::RHI::Resource | |
| AZ_RTTI (Resource, "{613AED98-48FD-4453-98F8-6956D2133489}", MultiDeviceObject) | |
| bool | IsAttachment () const |
| Returns whether the resource is currently an attachment on a frame graph. | |
| const ResourcePool * | GetPool () const |
| ResourcePool * | GetPool () |
| uint32_t | GetVersion () const |
| const FrameAttachment * | GetFrameAttachment () const |
| Returns the frame attachment associated with this image (if it exists). | |
| void | InvalidateViews () |
| Public Member Functions inherited from AZ::RHI::MultiDeviceObject | |
| AZ_RTTI (MultiDeviceObject, "{17D34F71-944C-4AF5-9823-627474C4C0A6}", Object) | |
| bool | IsInitialized () const |
| Returns whether the device object is initialized. | |
| AZ_FORCE_INLINE bool | IsDeviceSet (int deviceIndex) const |
| MultiDevice::DeviceMask | GetDeviceMask () const |
| Public Member Functions inherited from AZ::RHI::Object | |
| AZ_RTTI (Object, "{E43378F1-2331-4173-94B8-990ED20E6003}") | |
| void | SetName (const Name &name) |
| Sets the name of the object. | |
| const Name & | GetName () const |
| Returns the name set on the object by SetName. | |
| uint32_t | use_count () |
| Returns the current use count of the object. | |
Protected Member Functions | |
| virtual void | SetDescriptor (const ImageDescriptor &descriptor) |
| Protected Member Functions inherited from AZ::RHI::MultiDeviceObject | |
| void | Init (MultiDevice::DeviceMask deviceMask) |
| The derived class should call this method to assign the device. | |
| template<typename T > | |
| AZ_FORCE_INLINE void | IterateDevices (T callback) |
| Helper method that will iterate over all selected devices and call the provided callback. | |
| template<typename T , typename U > | |
| AZ_FORCE_INLINE decltype(auto) | IterateObjects (U callback) |
| template<typename T , typename U > | |
| AZ_FORCE_INLINE decltype(auto) | IterateObjects (U callback) const |
| template<typename T > | |
| AZ_FORCE_INLINE Ptr< T > | GetDeviceObject (int deviceIndex) const |
| Protected Member Functions inherited from AZ::RHI::Object | |
| void | add_ref () const |
| void | release () const |
Friends | |
| class | ImagePoolBase |
| class | ImagePool |
| class | TransientAttachmentPool |
| class | StreamingImagePool |
| class | SwapChain |
Additional Inherited Members | |
| Static Public Member Functions inherited from AZ::RHI::MultiDeviceObject | |
| template<typename T > | |
| static AZ_FORCE_INLINE void | IterateDevices (MultiDevice::DeviceMask deviceMask, T callback) |
| Protected Attributes inherited from AZ::RHI::MultiDeviceObject | |
| AZStd::unordered_map< int, Ptr< DeviceObject > > | m_deviceObjects |
| A map of all device-specific objects, indexed by the device index. | |
| Protected Attributes inherited from AZ::RHI::Object | |
| AZStd::atomic_int | m_useCount = 0 |
Detailed Description
Image represents a collection of Image Subresources, where each subresource comprises a one to three dimensional grid of pixels. Images are divided into an array of mip-map chains. A mip map chain is a list of subresources, progressively halved on each axis, down to a 1x1 pixel base image. If an array is used, each array 'slice' is its own mip chain. All mip chains in an array share the same size.
Subresources are organized by a linear indexing scheme: mipSliceOffset + arraySliceOffset * arraySize. The total number of subresources is equal to mipLevels * arraySize. All subresources share the same pixel format.
- See also
- DeviceImageView on how to interpret contents of an image.
Member Function Documentation
◆ GetDescriptor()
| const ImageDescriptor & AZ::RHI::Image::GetDescriptor | ( | ) | const |
Returns the image descriptor used to initialize the image. If the image is uninitialized, the contents are considered undefined.
◆ GetFrameAttachment()
| const ImageFrameAttachment * AZ::RHI::Image::GetFrameAttachment | ( | ) | const |
Returns the image frame attachment if the image is currently attached. This is assigned when the image is imported into the frame scheduler (which is reset every frame). This value will be null for non-attachment images.
◆ GetResidentMipLevel()
| uint32_t AZ::RHI::Image::GetResidentMipLevel | ( | ) | const |
Returns the most detailed mip level currently resident in memory on any device, where a value of 0 is the highest detailed mip.
◆ GetSubresourceLayout()
| void AZ::RHI::Image::GetSubresourceLayout | ( | ImageSubresourceLayout & | subresourceLayout, |
| ImageAspectFlags | aspectFlags = ImageAspectFlags::All |
||
| ) | const |
Computes the subresource layouts and total size of the image contents, if represented linearly. Effectively, this data represents how to store the image in a buffer resource. Naturally, if the image contents are swizzled in device memory, the layouts will differ from the actual physical memory footprint. Use this data to facilitate transfers between buffers and images.
- Parameters
-
subresourceRange The range of subresources in the image to consider when computing subresource layouts. subresourceLayouts [Optional] If specified, fills the provided array with computed subresource layout results. The size of the array must be at least the number of subresources specified in the subresource range (number of mip slices * number of array slices). totalSizeInBytes [Optional] If specified, will be filled with the total size necessary to contain all subresources.
◆ GetSupportedQueueMask()
| HardwareQueueClassMask AZ::RHI::Image::GetSupportedQueueMask | ( | ) | const |
Returns the set of queue classes that are supported for usage as an attachment on the frame scheduler. Effectively, for a scope of a specific hardware class to use the image as an attachment, the queue must be present in this mask. This does not apply to non-attachment images on the Compute / Graphics queue.
◆ Shutdown()
|
finaloverridevirtual |
Shuts down the resource by detaching it from its parent pool.
Implements AZ::RHI::Resource.
The documentation for this class was generated from the following file:
- Gems/Atom/RHI/Code/Include/Atom/RHI/Image.h
