chromium/third_party/angle/src/libANGLE/renderer/vulkan/shaders/gen/GenerateFragmentShadingRate.comp.00000000.inc

// GENERATED FILE - DO NOT EDIT.
// Generated by gen_vk_internal_shaders.py.
//
// Copyright 2018 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// shaders/gen/GenerateFragmentShadingRate.comp.00000000.inc:
//   Pre-generated shader for the ANGLE Vulkan back-end.

#pragma once
constexpr uint8_t kGenerateFragmentShadingRate_comp_00000000[] = …;

// Generated from:
//
// #version 450 core
//
// struct FocalPoint {
//     float focalX;
//     float focalY;
//     float gainX;
//     float gainY;
//     float foveaArea;
// };
//
// layout(push_constant)uniform PushConstants
// {
//     uint textureWidth;
//     uint textureHeight;
//     uint attachmentWidth;
//     uint attachmentHeight;
//     uint attachmentBlockWidth;
//     uint attachmentBlockHeight;
//     uint numOfFocalPoints;
//     FocalPoint focalPoints[2];
// } params;
//
// layout(binding = 0, r8ui)uniform writeonly uimage2D fragmentShadingRateImage;
// layout(local_size_x = 8, local_size_y = 8, local_size_z = 1)in;
//
// uint computeValue(ivec2 pos)
// {
//     float minPixelDensity = 0.0f;
//     float focalPointDensity = 0.0f;
//     float px =((float(pos . x)* params . attachmentBlockWidth)/ params . textureWidth - 0.5f)* 2.0f;
//     float py =((float(pos . y)* params . attachmentBlockHeight)/ params . textureHeight - 0.5f)* 2.0f;
//
//     for(uint point = 0;point < params . numOfFocalPoints;point ++)
//     {
//         float density = 1.0f / max(pow(params . focalPoints[point]. focalX - px, 2)*
//                                    pow(params . focalPoints[point]. gainX, 2)+
//                                    pow(params . focalPoints[point]. focalY - py, 2)*
//                                    pow(params . focalPoints[point]. gainY, 2)-
//                                    params . focalPoints[point]. foveaArea,
//                                    1.0f);
//
//         if(density > focalPointDensity)
//         {
//             focalPointDensity = density;
//         }
//     }
//     minPixelDensity = max(minPixelDensity, focalPointDensity);
//
//     uint val = 0;
//     if(minPixelDensity > 0.75f)
//     {
//
//         val = 0;
//     }
//     else if(minPixelDensity > 0.5f)
//     {
//
//         val =(1 << 2);
//     }
//     else
//     {
//
//         val =(1 << 2)| 1;
//     }
//     return val;
// }
//
// void main()
// {
//     uint i = gl_GlobalInvocationID . x;
//     uint j = gl_GlobalInvocationID . y;
//
//     if(i >= params . attachmentWidth || j >= params . attachmentHeight)
//     {
//         return;
//     }
//
//     ivec2 pos = ivec2(i, j);
//     imageStore(fragmentShadingRateImage, pos, ivec4(computeValue(pos), 0, 0, 0));
// }