blob: f39b792ec881ff4b06289b42c3377c6983ca6b87 [file] [log] [blame] [edit]
// Copyright 2021 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 "VertexFormatUtils.h"
#include "Assert.h"
namespace dawn {
namespace {
static constexpr wgpu::VertexFormat kFirstDeprecatedVertexFormat =
wgpu::VertexFormat::UChar2;
static constexpr uint32_t kFirstDeprecatedVertexFormatValue =
static_cast<uint32_t>(kFirstDeprecatedVertexFormat);
} // namespace
bool IsDeprecatedVertexFormat(wgpu::VertexFormat format) {
return format >= kFirstDeprecatedVertexFormat;
}
wgpu::VertexFormat NormalizeVertexFormat(wgpu::VertexFormat format) {
// If the specified format is from the deprecated range return the corresponding
// non-deprecated format.
if (format >= kFirstDeprecatedVertexFormat) {
uint32_t formatValue = static_cast<uint32_t>(format);
// Need to add one to account for the "undefined" enum with value 0
return static_cast<wgpu::VertexFormat>(
(formatValue - kFirstDeprecatedVertexFormatValue) + 1);
}
return format;
}
uint32_t VertexFormatNumComponents(wgpu::VertexFormat format) {
format = NormalizeVertexFormat(format);
switch (format) {
case wgpu::VertexFormat::Uint8x4:
case wgpu::VertexFormat::Sint8x4:
case wgpu::VertexFormat::Unorm8x4:
case wgpu::VertexFormat::Snorm8x4:
case wgpu::VertexFormat::Uint16x4:
case wgpu::VertexFormat::Sint16x4:
case wgpu::VertexFormat::Unorm16x4:
case wgpu::VertexFormat::Snorm16x4:
case wgpu::VertexFormat::Float16x4:
case wgpu::VertexFormat::Float32x4:
case wgpu::VertexFormat::Uint32x4:
case wgpu::VertexFormat::Sint32x4:
return 4;
case wgpu::VertexFormat::Float32x3:
case wgpu::VertexFormat::Uint32x3:
case wgpu::VertexFormat::Sint32x3:
return 3;
case wgpu::VertexFormat::Uint8x2:
case wgpu::VertexFormat::Sint8x2:
case wgpu::VertexFormat::Unorm8x2:
case wgpu::VertexFormat::Snorm8x2:
case wgpu::VertexFormat::Uint16x2:
case wgpu::VertexFormat::Sint16x2:
case wgpu::VertexFormat::Unorm16x2:
case wgpu::VertexFormat::Snorm16x2:
case wgpu::VertexFormat::Float16x2:
case wgpu::VertexFormat::Float32x2:
case wgpu::VertexFormat::Uint32x2:
case wgpu::VertexFormat::Sint32x2:
return 2;
case wgpu::VertexFormat::Float32:
case wgpu::VertexFormat::Uint32:
case wgpu::VertexFormat::Sint32:
return 1;
case wgpu::VertexFormat::Undefined:
break;
// Deprecated formats (should be unreachable after NormalizeVertexFormat call)
case wgpu::VertexFormat::UChar2:
case wgpu::VertexFormat::UChar4:
case wgpu::VertexFormat::Char2:
case wgpu::VertexFormat::Char4:
case wgpu::VertexFormat::UChar2Norm:
case wgpu::VertexFormat::UChar4Norm:
case wgpu::VertexFormat::Char2Norm:
case wgpu::VertexFormat::Char4Norm:
case wgpu::VertexFormat::UShort2:
case wgpu::VertexFormat::UShort4:
case wgpu::VertexFormat::UShort2Norm:
case wgpu::VertexFormat::UShort4Norm:
case wgpu::VertexFormat::Short2:
case wgpu::VertexFormat::Short4:
case wgpu::VertexFormat::Short2Norm:
case wgpu::VertexFormat::Short4Norm:
case wgpu::VertexFormat::Half2:
case wgpu::VertexFormat::Half4:
case wgpu::VertexFormat::Float:
case wgpu::VertexFormat::Float2:
case wgpu::VertexFormat::Float3:
case wgpu::VertexFormat::Float4:
case wgpu::VertexFormat::UInt:
case wgpu::VertexFormat::UInt2:
case wgpu::VertexFormat::UInt3:
case wgpu::VertexFormat::UInt4:
case wgpu::VertexFormat::Int:
case wgpu::VertexFormat::Int2:
case wgpu::VertexFormat::Int3:
case wgpu::VertexFormat::Int4:
break;
}
UNREACHABLE();
}
size_t VertexFormatComponentSize(wgpu::VertexFormat format) {
format = NormalizeVertexFormat(format);
switch (format) {
case wgpu::VertexFormat::Uint8x2:
case wgpu::VertexFormat::Uint8x4:
case wgpu::VertexFormat::Sint8x2:
case wgpu::VertexFormat::Sint8x4:
case wgpu::VertexFormat::Unorm8x2:
case wgpu::VertexFormat::Unorm8x4:
case wgpu::VertexFormat::Snorm8x2:
case wgpu::VertexFormat::Snorm8x4:
return sizeof(char);
case wgpu::VertexFormat::Uint16x2:
case wgpu::VertexFormat::Uint16x4:
case wgpu::VertexFormat::Unorm16x2:
case wgpu::VertexFormat::Unorm16x4:
case wgpu::VertexFormat::Sint16x2:
case wgpu::VertexFormat::Sint16x4:
case wgpu::VertexFormat::Snorm16x2:
case wgpu::VertexFormat::Snorm16x4:
case wgpu::VertexFormat::Float16x2:
case wgpu::VertexFormat::Float16x4:
return sizeof(uint16_t);
case wgpu::VertexFormat::Float32:
case wgpu::VertexFormat::Float32x2:
case wgpu::VertexFormat::Float32x3:
case wgpu::VertexFormat::Float32x4:
return sizeof(float);
case wgpu::VertexFormat::Uint32:
case wgpu::VertexFormat::Uint32x2:
case wgpu::VertexFormat::Uint32x3:
case wgpu::VertexFormat::Uint32x4:
case wgpu::VertexFormat::Sint32:
case wgpu::VertexFormat::Sint32x2:
case wgpu::VertexFormat::Sint32x3:
case wgpu::VertexFormat::Sint32x4:
return sizeof(int32_t);
case wgpu::VertexFormat::Undefined:
break;
// Deprecated formats (should be unreachable after NormalizeVertexFormat call)
case wgpu::VertexFormat::UChar2:
case wgpu::VertexFormat::UChar4:
case wgpu::VertexFormat::Char2:
case wgpu::VertexFormat::Char4:
case wgpu::VertexFormat::UChar2Norm:
case wgpu::VertexFormat::UChar4Norm:
case wgpu::VertexFormat::Char2Norm:
case wgpu::VertexFormat::Char4Norm:
case wgpu::VertexFormat::UShort2:
case wgpu::VertexFormat::UShort4:
case wgpu::VertexFormat::UShort2Norm:
case wgpu::VertexFormat::UShort4Norm:
case wgpu::VertexFormat::Short2:
case wgpu::VertexFormat::Short4:
case wgpu::VertexFormat::Short2Norm:
case wgpu::VertexFormat::Short4Norm:
case wgpu::VertexFormat::Half2:
case wgpu::VertexFormat::Half4:
case wgpu::VertexFormat::Float:
case wgpu::VertexFormat::Float2:
case wgpu::VertexFormat::Float3:
case wgpu::VertexFormat::Float4:
case wgpu::VertexFormat::UInt:
case wgpu::VertexFormat::UInt2:
case wgpu::VertexFormat::UInt3:
case wgpu::VertexFormat::UInt4:
case wgpu::VertexFormat::Int:
case wgpu::VertexFormat::Int2:
case wgpu::VertexFormat::Int3:
case wgpu::VertexFormat::Int4:
break;
}
UNREACHABLE();
}
size_t VertexFormatSize(wgpu::VertexFormat format) {
return VertexFormatNumComponents(format) * VertexFormatComponentSize(format);
}
const char* GetWGSLVertexFormatType(wgpu::VertexFormat format) {
format = NormalizeVertexFormat(format);
switch (format) {
case wgpu::VertexFormat::Float32:
return "f32";
case wgpu::VertexFormat::Unorm8x2:
case wgpu::VertexFormat::Snorm8x2:
case wgpu::VertexFormat::Unorm16x2:
case wgpu::VertexFormat::Snorm16x2:
case wgpu::VertexFormat::Float16x2:
case wgpu::VertexFormat::Float32x2:
return "vec2<f32>";
case wgpu::VertexFormat::Float32x3:
return "vec3<f32>";
case wgpu::VertexFormat::Unorm8x4:
case wgpu::VertexFormat::Snorm8x4:
case wgpu::VertexFormat::Unorm16x4:
case wgpu::VertexFormat::Snorm16x4:
case wgpu::VertexFormat::Float16x4:
case wgpu::VertexFormat::Float32x4:
return "vec4<f32>";
case wgpu::VertexFormat::Uint32:
return "u32";
case wgpu::VertexFormat::Uint8x2:
case wgpu::VertexFormat::Uint16x2:
case wgpu::VertexFormat::Uint32x2:
return "vec2<u32>";
case wgpu::VertexFormat::Uint32x3:
return "vec3<u32>";
case wgpu::VertexFormat::Uint8x4:
case wgpu::VertexFormat::Uint16x4:
case wgpu::VertexFormat::Uint32x4:
return "vec4<u32>";
case wgpu::VertexFormat::Sint32:
return "i32";
case wgpu::VertexFormat::Sint8x2:
case wgpu::VertexFormat::Sint16x2:
case wgpu::VertexFormat::Sint32x2:
return "vec2<i32>";
case wgpu::VertexFormat::Sint32x3:
return "vec3<i32>";
case wgpu::VertexFormat::Sint8x4:
case wgpu::VertexFormat::Sint16x4:
case wgpu::VertexFormat::Sint32x4:
return "vec4<i32>";
case wgpu::VertexFormat::Undefined:
break;
// Deprecated formats (should be unreachable after NormalizeVertexFormat call)
case wgpu::VertexFormat::UChar2:
case wgpu::VertexFormat::UChar4:
case wgpu::VertexFormat::Char2:
case wgpu::VertexFormat::Char4:
case wgpu::VertexFormat::UChar2Norm:
case wgpu::VertexFormat::UChar4Norm:
case wgpu::VertexFormat::Char2Norm:
case wgpu::VertexFormat::Char4Norm:
case wgpu::VertexFormat::UShort2:
case wgpu::VertexFormat::UShort4:
case wgpu::VertexFormat::UShort2Norm:
case wgpu::VertexFormat::UShort4Norm:
case wgpu::VertexFormat::Short2:
case wgpu::VertexFormat::Short4:
case wgpu::VertexFormat::Short2Norm:
case wgpu::VertexFormat::Short4Norm:
case wgpu::VertexFormat::Half2:
case wgpu::VertexFormat::Half4:
case wgpu::VertexFormat::Float:
case wgpu::VertexFormat::Float2:
case wgpu::VertexFormat::Float3:
case wgpu::VertexFormat::Float4:
case wgpu::VertexFormat::UInt:
case wgpu::VertexFormat::UInt2:
case wgpu::VertexFormat::UInt3:
case wgpu::VertexFormat::UInt4:
case wgpu::VertexFormat::Int:
case wgpu::VertexFormat::Int2:
case wgpu::VertexFormat::Int3:
case wgpu::VertexFormat::Int4:
break;
}
UNREACHABLE();
}
} // namespace dawn