rr: add FSR Ray Regeneration, exact RDNA3 inference and motion experiments

Add an experimental FSR Ray Regeneration backend for D3D12 RR requests:
- Convert depth, motion, normals and albedos into AMD denoiser inputs.
- Split and recompose diffuse/specular signals, then run Super Sampling.
- Add stability/detail controls, demodulation guards and halo limiting.
- Handle AMD provider discovery under NVIDIA GPU spoofing.
- Add runtime probes, synthetic reference scenes and per-dispatch profiling.

Add exact gfx11 DLSS-RR inference using f16 cooperative matrices:
- Reproduce FP8 conversions, accumulation and camera reprojection arithmetic.
- Widen model weights and avoid requiring VK_EXT_shader_float8.
- Extend model building, replay tools and descriptor metadata.

Expand motion preprocessing and experimental AW2 native-motion support:
- Add tiled LDS dilation, padded allocation handling and thin-only sky fill.
- Order dilation with input waits and NGX on the selected stream.
- Add jitter-aligned native composition, hybrid routing and wire history repair.
- Add prepared masks, sparse repair and independent motion/repair controls.

Add optional fused R11G11B10 input/output conversion, sampled stage timings
and profile summarization. Extend configuration, packaging, documentation,
FidelityFX headers and CPU/GPU regression coverage.
This commit is contained in:
ayo committed 2026-10-16 04:55:25 -04:00
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// This file is part of the FidelityFX SDK.
//
// Copyright (C) 2026 Advanced Micro Devices, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files(the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and /or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions :
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#pragma once
#if defined(__cplusplus)
extern "C" {
#endif // #if defined(__cplusplus)
#define FFX_API_ENTRY __declspec(dllexport)
#include <stdint.h>
enum FfxApiReturnCodes
{
FFX_API_RETURN_OK = 0, ///< The oparation was successful.
FFX_API_RETURN_ERROR = 1, ///< An error occurred that is not further specified.
FFX_API_RETURN_ERROR_UNKNOWN_DESCTYPE = 2, ///< The structure type given was not recognized for the function or context with which it was used. This is likely a programming error.
FFX_API_RETURN_ERROR_RUNTIME_ERROR = 3, ///< The underlying runtime (e.g. D3D12, Vulkan) or effect returned an error code.
FFX_API_RETURN_NO_PROVIDER = 4, ///< No provider was found for the given structure type. This is likely a programming error.
FFX_API_RETURN_ERROR_MEMORY = 5, ///< A memory allocation failed.
FFX_API_RETURN_ERROR_PARAMETER = 6, ///< A parameter was invalid, e.g. a null pointer, empty resource or out-of-bounds enum value.
FFX_API_RETURN_PROVIDER_NO_SUPPORT_NEW_DESCTYPE = 7, ///< The structure type given is new and not supported in the old provider. This is likely fixed with driver upgrade or effect DLL upgrade.
};
typedef void* ffxContext;
typedef uint32_t ffxReturnCode_t;
#define FFX_API_EFFECT_MASK 0x00ff0000u
#define FFX_API_BACKEND_MASK 0xff000000u
#define FFX_API_EFFECT_ID_GENERAL 0x00000000u
// Base Descriptor types
typedef uint64_t ffxStructType_t;
typedef struct ffxApiHeader
{
ffxStructType_t type; ///< The structure type. Must always be set to the corresponding value for any structure (found nearby with a similar name).
struct ffxApiHeader* pNext; ///< Pointer to next structure, used for optional parameters and extensions. Can be null.
} ffxApiHeader;
typedef ffxApiHeader ffxCreateContextDescHeader;
typedef ffxApiHeader ffxConfigureDescHeader;
typedef ffxApiHeader ffxQueryDescHeader;
typedef ffxApiHeader ffxDispatchDescHeader;
// Extensions for global debug
#define FFX_API_CONFIGURE_GLOBALDEBUG_LEVEL_SILENCE 0x0000000u
#define FFX_API_CONFIGURE_GLOBALDEBUG_LEVEL_ERRORS 0x0000001u
#define FFX_API_CONFIGURE_GLOBALDEBUG_LEVEL_WARNINGS 0x0000002u
#define FFX_API_CONFIGURE_GLOBALDEBUG_LEVEL_VERBOSE 0xfffffffu
enum FfxApiMsgType
{
FFX_API_MESSAGE_TYPE_ERROR = 0,
FFX_API_MESSAGE_TYPE_WARNING = 1,
FFX_API_MESSAGE_TYPE_COUNT
};
typedef void (*ffxApiMessage)(uint32_t type, const wchar_t* message);
#define FFX_API_CONFIGURE_DESC_TYPE_GLOBALDEBUG1 0x0000001u
struct ffxConfigureDescGlobalDebug1
{
ffxConfigureDescHeader header;
ffxApiMessage fpMessage;
uint32_t debugLevel;
};
#define FFX_API_CONFIGURE_DESC_TYPE_GLOBALDEBUG 7u
struct ffxConfigureDescGlobalDebug
{
ffxConfigureDescHeader header;
uint64_t effectId;
ffxApiMessage fpMessage; ///< A pointer to a function that can receive messages from the runtime. May be null.
uint32_t debugLevel;
};
#define FFX_API_QUERY_DESC_TYPE_GET_VERSIONS 4u
struct ffxQueryDescGetVersions
{
ffxQueryDescHeader header;
uint64_t createDescType; ///< Create description for the effect whose versions should be enumerated.
void* device; ///< For DX12: pointer to ID3D12Device.
uint64_t *outputCount; ///< Input capacity of id and name arrays. Output number of returned versions. If initially zero, output is number of available versions.
uint64_t *versionIds; ///< Output array of version ids to be used as version overrides. If null, only names and count are returned.
const char** versionNames; ///< Output array of version names for display. If null, only ids and count are returned. If both this and versionIds are null, only count is returned.
};
#define FFX_API_DESC_TYPE_OVERRIDE_VERSION 5u
struct ffxOverrideVersion
{
ffxApiHeader header;
uint64_t versionId; ///< Id of version to use. Must be a value returned from a query in ffxQueryDescGetVersions.versionIds array.
};
#define FFX_API_QUERY_DESC_TYPE_GET_PROVIDER_VERSION 6u
struct ffxQueryGetProviderVersion
{
ffxQueryDescHeader header;
uint64_t versionId; ///< Id of provider being used for queried context. 0 if invalid.
const char* versionName; ///< Version name for display. If nullptr, the query was invalid.
};
// Memory allocation function. Must return a valid pointer to at least size bytes of memory aligned to hold any type.
// May return null to indicate failure. Standard library malloc fulfills this requirement.
typedef void* (*ffxAlloc)(void* pUserData, uint64_t size);
// Memory deallocation function. May be called with null pointer as second argument.
typedef void (*ffxDealloc)(void* pUserData, void* pMem);
typedef struct ffxAllocationCallbacks
{
void* pUserData;
ffxAlloc alloc;
ffxDealloc dealloc;
} ffxAllocationCallbacks;
// Creates a FFX object context.
// Depending on the desc structures provided to this function, the context will be created with the desired version and attributes.
// Non-zero return indicates error code.
// Pointers passed in desc must remain live until ffxDestroyContext is called on the context.
// MemCb may be null; the system allocator (malloc/free) will be used in this case.
FFX_API_ENTRY ffxReturnCode_t ffxCreateContext(ffxContext* context, ffxCreateContextDescHeader* desc, const ffxAllocationCallbacks* memCb);
typedef ffxReturnCode_t (*PfnFfxCreateContext)(ffxContext* context, ffxCreateContextDescHeader* desc, const ffxAllocationCallbacks* memCb);
// Destroys an FFX object context.
// Non-zero return indicates error code.
// MemCb must be compatible with the callbacks passed into ffxCreateContext.
FFX_API_ENTRY ffxReturnCode_t ffxDestroyContext(ffxContext* context, const ffxAllocationCallbacks* memCb);
typedef ffxReturnCode_t (*PfnFfxDestroyContext)(ffxContext* context, const ffxAllocationCallbacks* memCb);
// Configures the provided FFX object context.
// If context is null, configure operates on any global state.
// Non-zero return indicates error code.
FFX_API_ENTRY ffxReturnCode_t ffxConfigure(ffxContext* context, const ffxConfigureDescHeader* desc);
typedef ffxReturnCode_t (*PfnFfxConfigure)(ffxContext* context, const ffxConfigureDescHeader* desc);
// Queries the provided FFX object context.
// If context is null, query operates on any global state.
// Non-zero return indicates error code.
FFX_API_ENTRY ffxReturnCode_t ffxQuery(ffxContext* context, ffxQueryDescHeader* desc);
typedef ffxReturnCode_t (*PfnFfxQuery)(ffxContext* context, ffxQueryDescHeader* desc);
// Dispatches work on the given FFX object context defined by the dispatch descriptor.
// Non-zero return indicates error code.
FFX_API_ENTRY ffxReturnCode_t ffxDispatch(ffxContext* context, const ffxDispatchDescHeader* desc);
typedef ffxReturnCode_t (*PfnFfxDispatch)(ffxContext* context, const ffxDispatchDescHeader* desc);
// FFX_API_EFFECT_IDs
#define FFX_API_EFFECT_ID_UPSCALE 0x00010000u
#define FFX_API_EFFECT_ID_FRAMEGENERATION 0x00020000u
#define FFX_API_EFFECT_ID_FRAMEGENERATIONSWAPCHAIN 0x00030000u
// Need to keep this ID around for the deprecated VK frame gen swapchain
#define FFX_API_EFFECT_ID_FRAMEGENERATIONSWAPCHAIN_VK 0x00040000u
// Need to keep this ID around for the deprecated VK frame gen swapchain
#define FFX_API_EFFECT_ID_DENOISER 0x00050000u
#define FFX_API_EFFECT_ID_RADIANCECACHE 0x00060000u
#define FFX_API_MAKE_EFFECT_SUB_ID(effectId, subversion) ((effectId & FFX_API_EFFECT_MASK) | (subversion & ~FFX_API_EFFECT_MASK))
// FFX_APID_BACKEND_IDs
#define FFX_API_BACKEND_ID_DX12 0x00000000u
#define FFX_API_BACKEND_ID_XBOX 0x01000000u
#define FFX_API_BACKEND_ID_VK 0x02000000u // For new effects going forward, please use this backend ID for vulkan specifics
#define FFX_API_MAKE_BACKEND_SUB_ID(backendId, subversion) ((backendId & FFX_API_BACKEND_MASK) | (subversion & ~FFX_API_BACKEND_MASK))
// Combiner for BACKEND-specific EFFECT sub-Ids
#define FFX_API_MAKE_BACKEND_EFFECT_SUB_ID(backendId, effectId, subversion) ((subversion & ~FFX_API_EFFECT_MASK) | (effectId & FFX_API_EFFECT_MASK) | (backendId & FFX_API_BACKEND_MASK) | (subversion & ~(FFX_API_BACKEND_MASK | FFX_API_EFFECT_MASK)))
// Pragma macros for controlling warnings so that deprecations take affect externally but can be suppressed internally.
// This is so we can maintain the API/ABI until we are ready to make the breaking change.
// These are sadly compiler specific.
#if defined(_MSC_VER) && !defined(__clang__) && !defined(__GNUC__) && !defined(__INTEL_COMPILER)
#define FFX_PRAGMA_WARNING_PUSH warning( push )
#define FFX_PRAGMA_WARNING_POP warning( pop )
#define FFX_PRAGMA_WARNING_DISABLE_DEPRECATIONS warning( disable: 4996 )
#define FFX_PRAGMA_WARNING_WARN_DEPRECATIONS warning( default: 4996 )
#elif defined(__clang__) || defined(__GNUC__)
#define FFX_PRAGMA_WARNING_PUSH GCC diagnostic push
#define FFX_PRAGMA_WARNING_POP GCC diagnostic pop
#define FFX_PRAGMA_WARNING_DISABLE_DEPRECATIONS GCC diagnostic ignored "-Wdeprecated"
#define FFX_PRAGMA_WARNING_WARN_DEPRECATIONS GCC diagnostic warning "-Wdeprecated"
#else
#define FFX_PRAGMA_WARNING_PUSH
#define FFX_PRAGMA_WARNING_POP
#define FFX_PRAGMA_WARNING_DISABLE_DEPRECATIONS
#endif
#define FFX_DEPRECATION(message) [[deprecated(message)]]
#if defined(__cplusplus)
}
#endif // #if defined(__cplusplus)
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// This file is part of the FidelityFX SDK.
//
// Copyright (C) 2026 Advanced Micro Devices, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files(the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and /or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions :
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#pragma once
#include <stdint.h>
#include <stdbool.h>
/// An enumeration of surface formats. Needs to match enum FfxApiSurfaceFormat
enum FfxApiSurfaceFormat
{
FFX_API_SURFACE_FORMAT_UNKNOWN, ///< Unknown format
FFX_API_SURFACE_FORMAT_R32G32B32A32_TYPELESS, ///< 32 bit per channel, 4 channel typeless format
FFX_API_SURFACE_FORMAT_R32G32B32A32_UINT, ///< 32 bit per channel, 4 channel uint format
FFX_API_SURFACE_FORMAT_R32G32B32A32_FLOAT, ///< 32 bit per channel, 4 channel float format
FFX_API_SURFACE_FORMAT_R16G16B16A16_FLOAT, ///< 16 bit per channel, 4 channel float format
FFX_API_SURFACE_FORMAT_R32G32B32_FLOAT, ///< 32 bit per channel, 3 channel float format
FFX_API_SURFACE_FORMAT_R32G32_FLOAT, ///< 32 bit per channel, 2 channel float format
FFX_API_SURFACE_FORMAT_R8_UINT, ///< 8 bit per channel, 1 channel float format
FFX_API_SURFACE_FORMAT_R32_UINT, ///< 32 bit per channel, 1 channel float format
FFX_API_SURFACE_FORMAT_R8G8B8A8_TYPELESS, ///< 8 bit per channel, 4 channel typeless format
FFX_API_SURFACE_FORMAT_R8G8B8A8_UNORM, ///< 8 bit per channel, 4 channel unsigned normalized format
FFX_API_SURFACE_FORMAT_R8G8B8A8_SNORM, ///< 8 bit per channel, 4 channel signed normalized format
FFX_API_SURFACE_FORMAT_R8G8B8A8_SRGB, ///< 8 bit per channel, 4 channel srgb normalized
FFX_API_SURFACE_FORMAT_B8G8R8A8_TYPELESS, ///< 8 bit per channel, 4 channel typeless format
FFX_API_SURFACE_FORMAT_B8G8R8A8_UNORM, ///< 8 bit per channel, 4 channel unsigned normalized format
FFX_API_SURFACE_FORMAT_B8G8R8A8_SRGB, ///< 8 bit per channel, 4 channel srgb normalized
FFX_API_SURFACE_FORMAT_R11G11B10_FLOAT, ///< 32 bit 3 channel float format
FFX_API_SURFACE_FORMAT_R10G10B10A2_UNORM, ///< 10 bit per 3 channel, 2 bit for 1 channel normalized format
FFX_API_SURFACE_FORMAT_R16G16_FLOAT, ///< 16 bit per channel, 2 channel float format
FFX_API_SURFACE_FORMAT_R16G16_UINT, ///< 16 bit per channel, 2 channel unsigned int format
FFX_API_SURFACE_FORMAT_R16G16_SINT, ///< 16 bit per channel, 2 channel signed int format
FFX_API_SURFACE_FORMAT_R16_FLOAT, ///< 16 bit per channel, 1 channel float format
FFX_API_SURFACE_FORMAT_R16_UINT, ///< 16 bit per channel, 1 channel unsigned int format
FFX_API_SURFACE_FORMAT_R16_UNORM, ///< 16 bit per channel, 1 channel unsigned normalized format
FFX_API_SURFACE_FORMAT_R16_SNORM, ///< 16 bit per channel, 1 channel signed normalized format
FFX_API_SURFACE_FORMAT_R8_UNORM, ///< 8 bit per channel, 1 channel unsigned normalized format
FFX_API_SURFACE_FORMAT_R8G8_UNORM, ///< 8 bit per channel, 2 channel unsigned normalized format
FFX_API_SURFACE_FORMAT_R8G8_UINT, ///< 8 bit per channel, 2 channel unsigned integer format
FFX_API_SURFACE_FORMAT_R32_FLOAT, ///< 32 bit per channel, 1 channel float format
FFX_API_SURFACE_FORMAT_R9G9B9E5_SHAREDEXP, ///< 9 bit per channel, 5 bit exponent format
FFX_API_SURFACE_FORMAT_R16G16B16A16_TYPELESS, ///< 16 bit per channel, 4 channel typeless format
FFX_API_SURFACE_FORMAT_R32G32_TYPELESS, ///< 32 bit per channel, 2 channel typeless format
FFX_API_SURFACE_FORMAT_R10G10B10A2_TYPELESS, ///< 10 bit per 3 channel, 2 bit for 1 channel typeless format
FFX_API_SURFACE_FORMAT_R16G16_TYPELESS, ///< 16 bit per channel, 2 channel typless format
FFX_API_SURFACE_FORMAT_R16_TYPELESS, ///< 16 bit per channel, 1 channel typeless format
FFX_API_SURFACE_FORMAT_R8_TYPELESS, ///< 8 bit per channel, 1 channel typeless format
FFX_API_SURFACE_FORMAT_R8G8_TYPELESS, ///< 8 bit per channel, 2 channel typeless format
FFX_API_SURFACE_FORMAT_R32_TYPELESS, ///< 32 bit per channel, 1 channel typeless format
FFX_API_SURFACE_FORMAT_R32G32_UINT, ///< 32 bit per channel, 2 channel uint format
FFX_API_SURFACE_FORMAT_R8_SNORM, ///< 8 bit per channel, 1 channel signed normalized format
};
/// An enumeration of resource usage.
enum FfxApiResourceUsage
{
FFX_API_RESOURCE_USAGE_READ_ONLY = 0, ///< No usage flags indicate a resource is read only.
FFX_API_RESOURCE_USAGE_RENDERTARGET = (1<<0), ///< Indicates a resource will be used as render target.
FFX_API_RESOURCE_USAGE_UAV = (1<<1), ///< Indicates a resource will be used as UAV.
FFX_API_RESOURCE_USAGE_DEPTHTARGET = (1<<2), ///< Indicates a resource will be used as depth target.
FFX_API_RESOURCE_USAGE_INDIRECT = (1<<3), ///< Indicates a resource will be used as indirect argument buffer
FFX_API_RESOURCE_USAGE_ARRAYVIEW = (1<<4), ///< Indicates a resource that will generate array views. Works on 2D and cubemap textures
FFX_API_RESOURCE_USAGE_STENCILTARGET = (1<<5), ///< Indicates a resource will be used as stencil target.
FFX_API_RESOURCE_USAGE_DCC_RENDERTARGET = (1<<15), ///< Indicates a resource that should specify optimal render target memory access flags (for console use)
};
/// An enumeration of resource states.
enum FfxApiResourceState
{
FFX_API_RESOURCE_STATE_COMMON = (1 << 0),
FFX_API_RESOURCE_STATE_UNORDERED_ACCESS = (1 << 1), ///< Indicates a resource is in the state to be used as UAV.
FFX_API_RESOURCE_STATE_COMPUTE_READ = (1 << 2), ///< Indicates a resource is in the state to be read by compute shaders.
FFX_API_RESOURCE_STATE_PIXEL_READ = (1 << 3), ///< Indicates a resource is in the state to be read by pixel shaders.
FFX_API_RESOURCE_STATE_PIXEL_COMPUTE_READ = (FFX_API_RESOURCE_STATE_PIXEL_READ | FFX_API_RESOURCE_STATE_COMPUTE_READ), ///< Indicates a resource is in the state to be read by pixel or compute shaders.
FFX_API_RESOURCE_STATE_COPY_SRC = (1 << 4), ///< Indicates a resource is in the state to be used as source in a copy command.
FFX_API_RESOURCE_STATE_COPY_DEST = (1 << 5), ///< Indicates a resource is in the state to be used as destination in a copy command.
FFX_API_RESOURCE_STATE_GENERIC_READ = (FFX_API_RESOURCE_STATE_COPY_SRC | FFX_API_RESOURCE_STATE_COMPUTE_READ), ///< Indicates a resource is in generic (slow) read state.
FFX_API_RESOURCE_STATE_INDIRECT_ARGUMENT = (1 << 6), ///< Indicates a resource is in the state to be used as an indirect command argument
FFX_API_RESOURCE_STATE_PRESENT = (1 << 7), ///< Indicates a resource is in the state to be used to present to the swap chain
FFX_API_RESOURCE_STATE_RENDER_TARGET = (1 << 8), ///< Indicates a resource is in the state to be used as render target
FFX_API_RESOURCE_STATE_DEPTH_ATTACHMENT = (1 << 9), ///< Indicates a resource is in the state to be used as depth attachment
};
/// An enumeration of surface dimensions.
enum FfxApiResourceDimension
{
FFX_API_RESOURCE_DIMENSION_TEXTURE_1D, ///< A resource with a single dimension.
FFX_API_RESOURCE_DIMENSION_TEXTURE_2D, ///< A resource with two dimensions.
};
/// An enumeration of resource flags.
enum FfxApiResourceFlags
{
FFX_API_RESOURCE_FLAGS_NONE = 0, ///< No flags.
FFX_API_RESOURCE_FLAGS_ALIASABLE = (1 << 0), ///< A bit indicating a resource does not need to persist across frames.
FFX_API_RESOURCE_FLAGS_UNDEFINED = (1 << 1), ///< Special case flag used internally when importing resources that require additional setup
};
// An enumeration for different resource types
enum FfxApiResourceType
{
FFX_API_RESOURCE_TYPE_BUFFER, ///< The resource is a buffer.
FFX_API_RESOURCE_TYPE_TEXTURE1D, ///< The resource is a 1-dimensional texture.
FFX_API_RESOURCE_TYPE_TEXTURE2D, ///< The resource is a 2-dimensional texture.
FFX_API_RESOURCE_TYPE_TEXTURE_CUBE, ///< The resource is a cube map.
FFX_API_RESOURCE_TYPE_TEXTURE3D, ///< The resource is a 3-dimensional texture.
};
enum FfxApiBackbufferTransferFunction
{
FFX_API_BACKBUFFER_TRANSFER_FUNCTION_SRGB,
FFX_API_BACKBUFFER_TRANSFER_FUNCTION_PQ,
FFX_API_BACKBUFFER_TRANSFER_FUNCTION_SCRGB
};
/// A structure encapsulating a 2-dimensional point, using 32bit unsigned integers.
struct FfxApiDimensions2D
{
uint32_t width; ///< The width of a 2-dimensional range.
uint32_t height; ///< The height of a 2-dimensional range.
};
/// A structure encapsulating a 2-dimensional set of floating point coordinates.
struct FfxApiFloatCoords2D
{
float x; ///< The x coordinate of a 2-dimensional point.
float y; ///< The y coordinate of a 2-dimensional point.
};
/// A structure encapsulating a 3-dimensional set of floating point coordinates.
struct FfxApiFloatCoords3D
{
float x; ///< The x coordinate of a 3-dimensional point.
float y; ///< The y coordinate of a 3-dimensional point.
float z; ///< The z coordinate of a 3-dimensional point.
};
/// A structure encapsulating a 2-dimensional rect.
struct FfxApiRect2D
{
int32_t left;
int32_t top;
int32_t width;
int32_t height;
};
/// A structure describing a resource.
///
/// @ingroup SDKTypes
struct FfxApiResourceDescription
{
uint32_t type; ///< The type of the resource.
uint32_t format; ///< The surface format.
union {
uint32_t width; ///< The width of the texture resource.
uint32_t size; ///< The size of the buffer resource.
};
union {
uint32_t height; ///< The height of the texture resource.
uint32_t stride; ///< The stride of the buffer resource.
};
union {
uint32_t depth; ///< The depth of the texture resource.
uint32_t alignment; ///< The alignment of the buffer resource.
};
uint32_t mipCount; ///< Number of mips (or 0 for full mipchain).
uint32_t flags; ///< A set of resource flags.
uint32_t usage; ///< Resource usage flags.
};
#define FFX_RESOURCE_NAME_SIZE 64
struct FfxApiResource
{
void* resource;
struct FfxApiResourceDescription description;
uint32_t state;
};
//struct definition matches FfxApiEffectMemoryUsage
typedef struct FfxApiEffectMemoryUsage
{
uint64_t totalUsageInBytes;
uint64_t aliasableUsageInBytes;
} FfxApiEffectMemoryUsage;
/// A structure describing a constant buffer allocation.
///
/// @ingroup SDKTypes
typedef struct FfxApiConstantBufferAllocation
{
struct FfxApiResource resource; ///< The resource representing the constant buffer resource.
uint64_t handle; ///< The binding handle for the constant buffer
} FfxApiConstantBufferAllocation;
/// A function definition for a constant buffer allocation callback
/// Used to provide a constant buffer allocator to the calling backend
///
/// @param [in] data The constant buffer data.
/// @param [in] dataSize The size of the constant buffer data.
///
/// @ingroup SDKTypes
typedef FfxApiConstantBufferAllocation(*FfxApiConstantBufferAllocator)(void* data, const uint64_t dataSize);
/// A 4-component floating point vector
typedef struct FfxApiFloat4
{
float x;
float y;
float z;
float w;
} FfxApiFloat4;
/// A 4x4 matrix in row-major layout with row-vector convention.
/// This is the canonical format expected by FFX APIs.
///
/// Memory layout: rows[row_index][column_index]
/// Mathematical convention: v * M (row vector multiplied by matrix)
typedef struct FfxApiMatrix4x4
{
FfxApiFloat4 rows[4]; ///< Four rows of the matrix. Access as rows[row].x, rows[row].y etc.
} FfxApiMatrix4x4;
/// An inclusive floating-point interval [min, max].
/// Valid instances must satisfy min <= max.
typedef struct FfxApiFloatBounds
{
float min; ///< Lower bound of the interval.
float max; ///< Upper bound of the interval.
} FfxApiFloatBounds;