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// Copyright 2020 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "TextureFormatUtils.h"
namespace utils {
bool TextureFormatSupportsStorageTexture(wgpu::TextureFormat format) {
switch (format) {
case wgpu::TextureFormat::R32Uint:
case wgpu::TextureFormat::R32Sint:
case wgpu::TextureFormat::R32Float:
case wgpu::TextureFormat::RGBA8Unorm:
case wgpu::TextureFormat::RGBA8Snorm:
case wgpu::TextureFormat::RGBA8Uint:
case wgpu::TextureFormat::RGBA8Sint:
case wgpu::TextureFormat::RG32Uint:
case wgpu::TextureFormat::RG32Sint:
case wgpu::TextureFormat::RG32Float:
case wgpu::TextureFormat::RGBA16Uint:
case wgpu::TextureFormat::RGBA16Sint:
case wgpu::TextureFormat::RGBA16Float:
case wgpu::TextureFormat::RGBA32Uint:
case wgpu::TextureFormat::RGBA32Sint:
case wgpu::TextureFormat::RGBA32Float:
return true;
default:
return false;
}
}
uint32_t GetTexelBlockSizeInBytes(wgpu::TextureFormat textureFormat) {
switch (textureFormat) {
case wgpu::TextureFormat::R8Unorm:
case wgpu::TextureFormat::R8Snorm:
case wgpu::TextureFormat::R8Uint:
case wgpu::TextureFormat::R8Sint:
return 1u;
case wgpu::TextureFormat::R16Uint:
case wgpu::TextureFormat::R16Sint:
case wgpu::TextureFormat::R16Float:
case wgpu::TextureFormat::RG8Unorm:
case wgpu::TextureFormat::RG8Snorm:
case wgpu::TextureFormat::RG8Uint:
case wgpu::TextureFormat::RG8Sint:
return 2u;
case wgpu::TextureFormat::R32Float:
case wgpu::TextureFormat::R32Uint:
case wgpu::TextureFormat::R32Sint:
case wgpu::TextureFormat::RG16Uint:
case wgpu::TextureFormat::RG16Sint:
case wgpu::TextureFormat::RG16Float:
case wgpu::TextureFormat::RGBA8Unorm:
case wgpu::TextureFormat::RGBA8UnormSrgb:
case wgpu::TextureFormat::RGBA8Snorm:
case wgpu::TextureFormat::RGBA8Uint:
case wgpu::TextureFormat::RGBA8Sint:
case wgpu::TextureFormat::BGRA8Unorm:
case wgpu::TextureFormat::BGRA8UnormSrgb:
case wgpu::TextureFormat::RGB10A2Unorm:
case wgpu::TextureFormat::RG11B10Ufloat:
case wgpu::TextureFormat::RGB9E5Ufloat:
case wgpu::TextureFormat::Depth32Float:
return 4u;
case wgpu::TextureFormat::RG32Float:
case wgpu::TextureFormat::RG32Uint:
case wgpu::TextureFormat::RG32Sint:
case wgpu::TextureFormat::RGBA16Uint:
case wgpu::TextureFormat::RGBA16Sint:
case wgpu::TextureFormat::RGBA16Float:
return 8u;
case wgpu::TextureFormat::RGBA32Float:
case wgpu::TextureFormat::RGBA32Uint:
case wgpu::TextureFormat::RGBA32Sint:
return 16u;
case wgpu::TextureFormat::BC1RGBAUnorm:
case wgpu::TextureFormat::BC1RGBAUnormSrgb:
case wgpu::TextureFormat::BC4RUnorm:
case wgpu::TextureFormat::BC4RSnorm:
return 8u;
case wgpu::TextureFormat::BC2RGBAUnorm:
case wgpu::TextureFormat::BC2RGBAUnormSrgb:
case wgpu::TextureFormat::BC3RGBAUnorm:
case wgpu::TextureFormat::BC3RGBAUnormSrgb:
case wgpu::TextureFormat::BC5RGUnorm:
case wgpu::TextureFormat::BC5RGSnorm:
case wgpu::TextureFormat::BC6HRGBUfloat:
case wgpu::TextureFormat::BC6HRGBFloat:
case wgpu::TextureFormat::BC7RGBAUnorm:
case wgpu::TextureFormat::BC7RGBAUnormSrgb:
return 16u;
case wgpu::TextureFormat::Depth24Plus:
case wgpu::TextureFormat::Depth24PlusStencil8:
// Block size of a multi-planar format depends on aspect.
case wgpu::TextureFormat::R8BG8Biplanar420Unorm:
case wgpu::TextureFormat::Stencil8:
case wgpu::TextureFormat::Undefined:
UNREACHABLE();
}
}
uint32_t GetTextureFormatBlockWidth(wgpu::TextureFormat textureFormat) {
switch (textureFormat) {
case wgpu::TextureFormat::R8Unorm:
case wgpu::TextureFormat::R8Snorm:
case wgpu::TextureFormat::R8Uint:
case wgpu::TextureFormat::R8Sint:
case wgpu::TextureFormat::R16Uint:
case wgpu::TextureFormat::R16Sint:
case wgpu::TextureFormat::R16Float:
case wgpu::TextureFormat::RG8Unorm:
case wgpu::TextureFormat::RG8Snorm:
case wgpu::TextureFormat::RG8Uint:
case wgpu::TextureFormat::RG8Sint:
case wgpu::TextureFormat::R32Float:
case wgpu::TextureFormat::R32Uint:
case wgpu::TextureFormat::R32Sint:
case wgpu::TextureFormat::RG16Uint:
case wgpu::TextureFormat::RG16Sint:
case wgpu::TextureFormat::RG16Float:
case wgpu::TextureFormat::RGBA8Unorm:
case wgpu::TextureFormat::RGBA8UnormSrgb:
case wgpu::TextureFormat::RGBA8Snorm:
case wgpu::TextureFormat::RGBA8Uint:
case wgpu::TextureFormat::RGBA8Sint:
case wgpu::TextureFormat::BGRA8Unorm:
case wgpu::TextureFormat::BGRA8UnormSrgb:
case wgpu::TextureFormat::RGB10A2Unorm:
case wgpu::TextureFormat::RG11B10Ufloat:
case wgpu::TextureFormat::RGB9E5Ufloat:
case wgpu::TextureFormat::RG32Float:
case wgpu::TextureFormat::RG32Uint:
case wgpu::TextureFormat::RG32Sint:
case wgpu::TextureFormat::RGBA16Uint:
case wgpu::TextureFormat::RGBA16Sint:
case wgpu::TextureFormat::RGBA16Float:
case wgpu::TextureFormat::RGBA32Float:
case wgpu::TextureFormat::RGBA32Uint:
case wgpu::TextureFormat::RGBA32Sint:
case wgpu::TextureFormat::Depth32Float:
case wgpu::TextureFormat::Depth24Plus:
case wgpu::TextureFormat::Depth24PlusStencil8:
return 1u;
case wgpu::TextureFormat::BC1RGBAUnorm:
case wgpu::TextureFormat::BC1RGBAUnormSrgb:
case wgpu::TextureFormat::BC4RUnorm:
case wgpu::TextureFormat::BC4RSnorm:
case wgpu::TextureFormat::BC2RGBAUnorm:
case wgpu::TextureFormat::BC2RGBAUnormSrgb:
case wgpu::TextureFormat::BC3RGBAUnorm:
case wgpu::TextureFormat::BC3RGBAUnormSrgb:
case wgpu::TextureFormat::BC5RGUnorm:
case wgpu::TextureFormat::BC5RGSnorm:
case wgpu::TextureFormat::BC6HRGBUfloat:
case wgpu::TextureFormat::BC6HRGBFloat:
case wgpu::TextureFormat::BC7RGBAUnorm:
case wgpu::TextureFormat::BC7RGBAUnormSrgb:
return 4u;
// Block size of a multi-planar format depends on aspect.
case wgpu::TextureFormat::R8BG8Biplanar420Unorm:
case wgpu::TextureFormat::Stencil8:
case wgpu::TextureFormat::Undefined:
UNREACHABLE();
}
}
uint32_t GetTextureFormatBlockHeight(wgpu::TextureFormat textureFormat) {
switch (textureFormat) {
case wgpu::TextureFormat::R8Unorm:
case wgpu::TextureFormat::R8Snorm:
case wgpu::TextureFormat::R8Uint:
case wgpu::TextureFormat::R8Sint:
case wgpu::TextureFormat::R16Uint:
case wgpu::TextureFormat::R16Sint:
case wgpu::TextureFormat::R16Float:
case wgpu::TextureFormat::RG8Unorm:
case wgpu::TextureFormat::RG8Snorm:
case wgpu::TextureFormat::RG8Uint:
case wgpu::TextureFormat::RG8Sint:
case wgpu::TextureFormat::R32Float:
case wgpu::TextureFormat::R32Uint:
case wgpu::TextureFormat::R32Sint:
case wgpu::TextureFormat::RG16Uint:
case wgpu::TextureFormat::RG16Sint:
case wgpu::TextureFormat::RG16Float:
case wgpu::TextureFormat::RGBA8Unorm:
case wgpu::TextureFormat::RGBA8UnormSrgb:
case wgpu::TextureFormat::RGBA8Snorm:
case wgpu::TextureFormat::RGBA8Uint:
case wgpu::TextureFormat::RGBA8Sint:
case wgpu::TextureFormat::BGRA8Unorm:
case wgpu::TextureFormat::BGRA8UnormSrgb:
case wgpu::TextureFormat::RGB10A2Unorm:
case wgpu::TextureFormat::RG11B10Ufloat:
case wgpu::TextureFormat::RGB9E5Ufloat:
case wgpu::TextureFormat::RG32Float:
case wgpu::TextureFormat::RG32Uint:
case wgpu::TextureFormat::RG32Sint:
case wgpu::TextureFormat::RGBA16Uint:
case wgpu::TextureFormat::RGBA16Sint:
case wgpu::TextureFormat::RGBA16Float:
case wgpu::TextureFormat::RGBA32Float:
case wgpu::TextureFormat::RGBA32Uint:
case wgpu::TextureFormat::RGBA32Sint:
case wgpu::TextureFormat::Depth32Float:
case wgpu::TextureFormat::Depth24Plus:
case wgpu::TextureFormat::Depth24PlusStencil8:
return 1u;
case wgpu::TextureFormat::BC1RGBAUnorm:
case wgpu::TextureFormat::BC1RGBAUnormSrgb:
case wgpu::TextureFormat::BC4RUnorm:
case wgpu::TextureFormat::BC4RSnorm:
case wgpu::TextureFormat::BC2RGBAUnorm:
case wgpu::TextureFormat::BC2RGBAUnormSrgb:
case wgpu::TextureFormat::BC3RGBAUnorm:
case wgpu::TextureFormat::BC3RGBAUnormSrgb:
case wgpu::TextureFormat::BC5RGUnorm:
case wgpu::TextureFormat::BC5RGSnorm:
case wgpu::TextureFormat::BC6HRGBUfloat:
case wgpu::TextureFormat::BC6HRGBFloat:
case wgpu::TextureFormat::BC7RGBAUnorm:
case wgpu::TextureFormat::BC7RGBAUnormSrgb:
return 4u;
// Block size of a multi-planar format depends on aspect.
case wgpu::TextureFormat::R8BG8Biplanar420Unorm:
case wgpu::TextureFormat::Stencil8:
case wgpu::TextureFormat::Undefined:
UNREACHABLE();
}
}
const char* GetWGSLColorTextureComponentType(wgpu::TextureFormat textureFormat) {
switch (textureFormat) {
case wgpu::TextureFormat::R8Unorm:
case wgpu::TextureFormat::R8Snorm:
case wgpu::TextureFormat::R16Float:
case wgpu::TextureFormat::RG8Unorm:
case wgpu::TextureFormat::RG8Snorm:
case wgpu::TextureFormat::R32Float:
case wgpu::TextureFormat::RG16Float:
case wgpu::TextureFormat::RGBA8Unorm:
case wgpu::TextureFormat::RGBA8Snorm:
case wgpu::TextureFormat::RGB10A2Unorm:
case wgpu::TextureFormat::RG11B10Ufloat:
case wgpu::TextureFormat::RGB9E5Ufloat:
case wgpu::TextureFormat::RG32Float:
case wgpu::TextureFormat::RGBA16Float:
case wgpu::TextureFormat::RGBA32Float:
case wgpu::TextureFormat::BGRA8Unorm:
case wgpu::TextureFormat::BGRA8UnormSrgb:
case wgpu::TextureFormat::RGBA8UnormSrgb:
return "f32";
case wgpu::TextureFormat::R8Uint:
case wgpu::TextureFormat::R16Uint:
case wgpu::TextureFormat::RG8Uint:
case wgpu::TextureFormat::R32Uint:
case wgpu::TextureFormat::RG16Uint:
case wgpu::TextureFormat::RGBA8Uint:
case wgpu::TextureFormat::RG32Uint:
case wgpu::TextureFormat::RGBA16Uint:
case wgpu::TextureFormat::RGBA32Uint:
return "u32";
case wgpu::TextureFormat::R8Sint:
case wgpu::TextureFormat::R16Sint:
case wgpu::TextureFormat::RG8Sint:
case wgpu::TextureFormat::R32Sint:
case wgpu::TextureFormat::RG16Sint:
case wgpu::TextureFormat::RGBA8Sint:
case wgpu::TextureFormat::RG32Sint:
case wgpu::TextureFormat::RGBA16Sint:
case wgpu::TextureFormat::RGBA32Sint:
return "i32";
default:
UNREACHABLE();
}
}
const char* GetWGSLImageFormatQualifier(wgpu::TextureFormat textureFormat) {
switch (textureFormat) {
case wgpu::TextureFormat::RGBA8Unorm:
return "rgba8unorm";
case wgpu::TextureFormat::RGBA8Snorm:
return "rgba8snorm";
case wgpu::TextureFormat::RGBA8Uint:
return "rgba8uint";
case wgpu::TextureFormat::RGBA8Sint:
return "rgba8sint";
case wgpu::TextureFormat::RGBA16Uint:
return "rgba16uint";
case wgpu::TextureFormat::RGBA16Sint:
return "rgba16sint";
case wgpu::TextureFormat::RGBA16Float:
return "rgba16float";
case wgpu::TextureFormat::R32Uint:
return "r32uint";
case wgpu::TextureFormat::R32Sint:
return "r32sint";
case wgpu::TextureFormat::R32Float:
return "r32float";
case wgpu::TextureFormat::RG32Uint:
return "rg32uint";
case wgpu::TextureFormat::RG32Sint:
return "rg32sint";
case wgpu::TextureFormat::RG32Float:
return "rg32float";
case wgpu::TextureFormat::RGBA32Uint:
return "rgba32uint";
case wgpu::TextureFormat::RGBA32Sint:
return "rgba32sint";
case wgpu::TextureFormat::RGBA32Float:
return "rgba32float";
// The below do not currently exist in the WGSL spec, but are used
// for tests that expect compilation failure.
case wgpu::TextureFormat::R8Unorm:
return "r8unorm";
case wgpu::TextureFormat::R8Snorm:
return "r8snorm";
case wgpu::TextureFormat::R8Uint:
return "r8uint";
case wgpu::TextureFormat::R8Sint:
return "r8sint";
case wgpu::TextureFormat::R16Uint:
return "r16uint";
case wgpu::TextureFormat::R16Sint:
return "r16sint";
case wgpu::TextureFormat::R16Float:
return "r16float";
case wgpu::TextureFormat::RG8Unorm:
return "rg8unorm";
case wgpu::TextureFormat::RG8Snorm:
return "rg8snorm";
case wgpu::TextureFormat::RG8Uint:
return "rg8uint";
case wgpu::TextureFormat::RG8Sint:
return "rg8sint";
case wgpu::TextureFormat::RG16Uint:
return "rg16uint";
case wgpu::TextureFormat::RG16Sint:
return "rg16sint";
case wgpu::TextureFormat::RG16Float:
return "rg16float";
case wgpu::TextureFormat::RGB10A2Unorm:
return "rgb10a2unorm";
case wgpu::TextureFormat::RG11B10Ufloat:
return "rg11b10ufloat";
default:
UNREACHABLE();
}
}
} // namespace utils