godot/thirdparty/amd-fsr2/ffx_util.h
Dario 057367bf4f Add FidelityFX Super Resolution 2.2 (FSR 2.2.1) support.
Introduces support for FSR2 as a new upscaler option available from the project settings. Also introduces an specific render list for surfaces that require motion and the ability to derive motion vectors from depth buffer and camera motion.
2023-09-25 10:37:47 -03:00

79 lines
3.1 KiB
C++

// This file is part of the FidelityFX SDK.
//
// Copyright (c) 2022-2023 Advanced Micro Devices, Inc. All rights reserved.
//
// 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 "ffx_types.h"
/// The value of Pi.
const float FFX_PI = 3.141592653589793f;
/// An epsilon value for floating point numbers.
const float FFX_EPSILON = 1e-06f;
/// Helper macro to create the version number.
#define FFX_MAKE_VERSION(major, minor, patch) ((major << 22) | (minor << 12) | patch)
///< Use this to specify no version.
#define FFX_UNSPECIFIED_VERSION 0xFFFFAD00
/// Helper macro to avoid warnings about unused variables.
#define FFX_UNUSED(x) ((void)(x))
/// Helper macro to align an integer to the specified power of 2 boundary
#define FFX_ALIGN_UP(x, y) (((x) + ((y)-1)) & ~((y)-1))
/// Helper macro to check if a value is aligned.
#define FFX_IS_ALIGNED(x) (((x) != 0) && ((x) & ((x)-1)))
/// Helper macro to stringify a value.
#define FFX_STR(s) FFX_XSTR(s)
#define FFX_XSTR(s) #s
/// Helper macro to forward declare a structure.
#define FFX_FORWARD_DECLARE(x) typedef struct x x
/// Helper macro to return the maximum of two values.
#define FFX_MAXIMUM(x, y) (((x) > (y)) ? (x) : (y))
/// Helper macro to return the minimum of two values.
#define FFX_MINIMUM(x, y) (((x) < (y)) ? (x) : (y))
/// Helper macro to do safe free on a pointer.
#define FFX_SAFE_FREE(x) \
if (x) \
free(x)
/// Helper macro to return the abs of an integer value.
#define FFX_ABSOLUTE(x) (((x) < 0) ? (-(x)) : (x))
/// Helper macro to return sign of a value.
#define FFX_SIGN(x) (((x) < 0) ? -1 : 1)
/// Helper macro to work out the number of elements in an array.
#define FFX_ARRAY_ELEMENTS(x) (int32_t)((sizeof(x) / sizeof(0 [x])) / ((size_t)(!(sizeof(x) % sizeof(0 [x])))))
/// The maximum length of a path that can be specified to the FidelityFX API.
#define FFX_MAXIMUM_PATH (260)
/// Helper macro to check if the specified key is set in a bitfield.
#define FFX_CONTAINS_FLAG(options, key) ((options & key) == key)