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magnum/src/Magnum/VertexFormat.cpp

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New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
/*
This file is part of Magnum.
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Vladimír Vondruš <mosra@centrum.cz>
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.
*/
#include "VertexFormat.h"
#include <string>
#include <Corrade/Containers/ArrayView.h>
#include <Corrade/Utility/Assert.h>
#include <Corrade/Utility/Debug.h>
namespace Magnum {
UnsignedInt vertexFormatSize(const VertexFormat format) {
switch(format) {
case VertexFormat::UnsignedByte:
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
case VertexFormat::UnsignedByteNormalized:
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
case VertexFormat::Byte:
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
case VertexFormat::ByteNormalized:
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
return 1;
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
case VertexFormat::Half:
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
case VertexFormat::UnsignedShort:
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
case VertexFormat::UnsignedShortNormalized:
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
case VertexFormat::Short:
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
case VertexFormat::ShortNormalized:
case VertexFormat::Vector2ub:
case VertexFormat::Vector2ubNormalized:
case VertexFormat::Vector2b:
case VertexFormat::Vector2bNormalized:
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
return 2;
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
case VertexFormat::Vector3ub:
case VertexFormat::Vector3ubNormalized:
case VertexFormat::Vector3b:
case VertexFormat::Vector3bNormalized:
return 3;
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
case VertexFormat::Float:
case VertexFormat::UnsignedInt:
case VertexFormat::Int:
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
case VertexFormat::Vector2h:
case VertexFormat::Vector2us:
case VertexFormat::Vector2usNormalized:
case VertexFormat::Vector2s:
case VertexFormat::Vector2sNormalized:
case VertexFormat::Vector4ub:
case VertexFormat::Vector4ubNormalized:
case VertexFormat::Vector4b:
case VertexFormat::Vector4bNormalized:
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
return 4;
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
case VertexFormat::Vector3h:
case VertexFormat::Vector3us:
case VertexFormat::Vector3usNormalized:
case VertexFormat::Vector3s:
case VertexFormat::Vector3sNormalized:
return 6;
case VertexFormat::Double:
case VertexFormat::Vector2:
case VertexFormat::Vector2ui:
case VertexFormat::Vector2i:
case VertexFormat::Vector4h:
case VertexFormat::Vector4us:
case VertexFormat::Vector4usNormalized:
case VertexFormat::Vector4s:
case VertexFormat::Vector4sNormalized:
return 8;
case VertexFormat::Vector3:
case VertexFormat::Vector3ui:
case VertexFormat::Vector3i:
return 12;
case VertexFormat::Vector2d:
case VertexFormat::Vector4:
case VertexFormat::Vector4ui:
case VertexFormat::Vector4i:
return 16;
case VertexFormat::Vector3d:
return 24;
case VertexFormat::Vector4d:
return 32;
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
}
CORRADE_ASSERT(false, "vertexFormatSize(): invalid format" << format, {});
}
Add packed, half and double types to VertexFormat. Intentionally not enabling / documenting the double types for use with positions / normals / ... yet. Might come later (or never).
6 years ago
UnsignedInt vertexFormatComponentCount(const VertexFormat format) {
switch(format) {
case VertexFormat::Float:
case VertexFormat::Half:
case VertexFormat::Double:
case VertexFormat::UnsignedByte:
case VertexFormat::UnsignedByteNormalized:
case VertexFormat::Byte:
case VertexFormat::ByteNormalized:
case VertexFormat::UnsignedShort:
case VertexFormat::UnsignedShortNormalized:
case VertexFormat::Short:
case VertexFormat::ShortNormalized:
case VertexFormat::UnsignedInt:
case VertexFormat::Int:
return 1;
case VertexFormat::Vector2:
case VertexFormat::Vector2h:
case VertexFormat::Vector2d:
case VertexFormat::Vector2ub:
case VertexFormat::Vector2ubNormalized:
case VertexFormat::Vector2b:
case VertexFormat::Vector2bNormalized:
case VertexFormat::Vector2us:
case VertexFormat::Vector2usNormalized:
case VertexFormat::Vector2s:
case VertexFormat::Vector2sNormalized:
case VertexFormat::Vector2ui:
case VertexFormat::Vector2i:
return 2;
case VertexFormat::Vector3:
case VertexFormat::Vector3h:
case VertexFormat::Vector3d:
case VertexFormat::Vector3ub:
case VertexFormat::Vector3ubNormalized:
case VertexFormat::Vector3b:
case VertexFormat::Vector3bNormalized:
case VertexFormat::Vector3us:
case VertexFormat::Vector3usNormalized:
case VertexFormat::Vector3s:
case VertexFormat::Vector3sNormalized:
case VertexFormat::Vector3ui:
case VertexFormat::Vector3i:
return 3;
case VertexFormat::Vector4:
case VertexFormat::Vector4h:
case VertexFormat::Vector4d:
case VertexFormat::Vector4ub:
case VertexFormat::Vector4ubNormalized:
case VertexFormat::Vector4b:
case VertexFormat::Vector4bNormalized:
case VertexFormat::Vector4us:
case VertexFormat::Vector4usNormalized:
case VertexFormat::Vector4s:
case VertexFormat::Vector4sNormalized:
case VertexFormat::Vector4ui:
case VertexFormat::Vector4i:
return 4;
}
CORRADE_ASSERT(false, "vertexFormatComponentCount(): invalid format" << format, {});
}
VertexFormat vertexFormatComponentFormat(const VertexFormat format) {
switch(format) {
case VertexFormat::Float:
case VertexFormat::Vector2:
case VertexFormat::Vector3:
case VertexFormat::Vector4:
return VertexFormat::Float;
case VertexFormat::Half:
case VertexFormat::Vector2h:
case VertexFormat::Vector3h:
case VertexFormat::Vector4h:
return VertexFormat::Half;
case VertexFormat::Double:
case VertexFormat::Vector2d:
case VertexFormat::Vector3d:
case VertexFormat::Vector4d:
return VertexFormat::Double;
case VertexFormat::UnsignedByte:
case VertexFormat::UnsignedByteNormalized:
case VertexFormat::Vector2ub:
case VertexFormat::Vector2ubNormalized:
case VertexFormat::Vector3ub:
case VertexFormat::Vector3ubNormalized:
case VertexFormat::Vector4ub:
case VertexFormat::Vector4ubNormalized:
return VertexFormat::UnsignedByte;
case VertexFormat::Byte:
case VertexFormat::ByteNormalized:
case VertexFormat::Vector2b:
case VertexFormat::Vector2bNormalized:
case VertexFormat::Vector3b:
case VertexFormat::Vector3bNormalized:
case VertexFormat::Vector4b:
case VertexFormat::Vector4bNormalized:
return VertexFormat::Byte;
case VertexFormat::UnsignedShort:
case VertexFormat::UnsignedShortNormalized:
case VertexFormat::Vector2us:
case VertexFormat::Vector2usNormalized:
case VertexFormat::Vector3us:
case VertexFormat::Vector3usNormalized:
case VertexFormat::Vector4us:
case VertexFormat::Vector4usNormalized:
return VertexFormat::UnsignedShort;
case VertexFormat::Short:
case VertexFormat::ShortNormalized:
case VertexFormat::Vector2s:
case VertexFormat::Vector2sNormalized:
case VertexFormat::Vector3s:
case VertexFormat::Vector3sNormalized:
case VertexFormat::Vector4s:
case VertexFormat::Vector4sNormalized:
return VertexFormat::Short;
case VertexFormat::UnsignedInt:
case VertexFormat::Vector2ui:
case VertexFormat::Vector3ui:
case VertexFormat::Vector4ui:
return VertexFormat::UnsignedInt;
case VertexFormat::Int:
case VertexFormat::Vector2i:
case VertexFormat::Vector3i:
case VertexFormat::Vector4i:
return VertexFormat::Int;
}
CORRADE_ASSERT(false, "vertexFormatComponentType(): invalid format" << format, {});
}
bool isVertexFormatNormalized(const VertexFormat format) {
switch(format) {
case VertexFormat::Float:
case VertexFormat::Half:
case VertexFormat::Double:
case VertexFormat::UnsignedByte:
case VertexFormat::Byte:
case VertexFormat::UnsignedShort:
case VertexFormat::Short:
case VertexFormat::UnsignedInt:
case VertexFormat::Int:
case VertexFormat::Vector2:
case VertexFormat::Vector2h:
case VertexFormat::Vector2d:
case VertexFormat::Vector2ub:
case VertexFormat::Vector2b:
case VertexFormat::Vector2us:
case VertexFormat::Vector2s:
case VertexFormat::Vector2ui:
case VertexFormat::Vector2i:
case VertexFormat::Vector3:
case VertexFormat::Vector3h:
case VertexFormat::Vector3d:
case VertexFormat::Vector3ub:
case VertexFormat::Vector3b:
case VertexFormat::Vector3us:
case VertexFormat::Vector3s:
case VertexFormat::Vector3ui:
case VertexFormat::Vector3i:
case VertexFormat::Vector4:
case VertexFormat::Vector4h:
case VertexFormat::Vector4d:
case VertexFormat::Vector4ub:
case VertexFormat::Vector4b:
case VertexFormat::Vector4us:
case VertexFormat::Vector4s:
case VertexFormat::Vector4ui:
case VertexFormat::Vector4i:
return false;
case VertexFormat::UnsignedByteNormalized:
case VertexFormat::ByteNormalized:
case VertexFormat::UnsignedShortNormalized:
case VertexFormat::ShortNormalized:
case VertexFormat::Vector2ubNormalized:
case VertexFormat::Vector2bNormalized:
case VertexFormat::Vector2usNormalized:
case VertexFormat::Vector2sNormalized:
case VertexFormat::Vector3ubNormalized:
case VertexFormat::Vector3bNormalized:
case VertexFormat::Vector3usNormalized:
case VertexFormat::Vector3sNormalized:
case VertexFormat::Vector4ubNormalized:
case VertexFormat::Vector4bNormalized:
case VertexFormat::Vector4usNormalized:
case VertexFormat::Vector4sNormalized:
return true;
}
CORRADE_ASSERT(false, "isVertexFormatNormalized(): invalid format" << format, {});
}
VertexFormat vertexFormat(const VertexFormat format, UnsignedInt componentCount, bool normalized) {
VertexFormat componentFormat = vertexFormatComponentFormat(format);
/* First turn the format into a normalized one, if requested */
if(normalized) {
switch(componentFormat) {
case VertexFormat::UnsignedByte:
componentFormat = VertexFormat::UnsignedByteNormalized;
break;
case VertexFormat::Byte:
componentFormat = VertexFormat::ByteNormalized;
break;
case VertexFormat::UnsignedShort:
componentFormat = VertexFormat::UnsignedShortNormalized;
break;
case VertexFormat::Short:
componentFormat = VertexFormat::ShortNormalized;
break;
default: CORRADE_ASSERT(false,
"vertexFormat():" << format << "can't be made normalized", {});
}
}
/* Then turn them into desired component count, assuming the initial order
is the same in all cases */
if(componentCount == 1)
return componentFormat;
else if(componentCount == 2)
return VertexFormat(UnsignedInt(VertexFormat::Vector2) +
UnsignedInt(componentFormat) - UnsignedInt(VertexFormat::Float));
else if(componentCount == 3)
return VertexFormat(UnsignedInt(VertexFormat::Vector3) +
UnsignedInt(componentFormat) - UnsignedInt(VertexFormat::Float));
else if(componentCount == 4)
return VertexFormat(UnsignedInt(VertexFormat::Vector4) +
UnsignedInt(componentFormat) - UnsignedInt(VertexFormat::Float));
else CORRADE_ASSERT(false,
"vertexFormat(): invalid component count" << componentCount, {});
CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
}
New VertexFormat enum. This deliberately doesn't follow the PixelFormat enum naming, as RGBA components make no sense for most vertex data. Checking Metal and WebGPU, they seem to have arrived at a similar conclusion, only VkFormat is an outlier.
7 years ago
namespace {
constexpr const char* VertexFormatNames[] {
#define _c(format) #format,
#include "Magnum/Implementation/vertexFormatMapping.hpp"
#undef _c
};
}
Debug& operator<<(Debug& debug, const VertexFormat value) {
debug << "VertexFormat" << Debug::nospace;
if(UnsignedInt(value) - 1 < Containers::arraySize(VertexFormatNames)) {
return debug << "::" << Debug::nospace << VertexFormatNames[UnsignedInt(value) - 1];
}
return debug << "(" << Debug::nospace << reinterpret_cast<void*>(UnsignedInt(value)) << Debug::nospace << ")";
}
}
namespace Corrade { namespace Utility {
std::string ConfigurationValue<Magnum::VertexFormat>::toString(Magnum::VertexFormat value, ConfigurationValueFlags) {
if(Magnum::UnsignedInt(value) - 1 < Containers::arraySize(Magnum::VertexFormatNames))
return Magnum::VertexFormatNames[Magnum::UnsignedInt(value) - 1];
return {};
}
Magnum::VertexFormat ConfigurationValue<Magnum::VertexFormat>::fromString(const std::string& stringValue, ConfigurationValueFlags) {
for(std::size_t i = 0; i != Containers::arraySize(Magnum::VertexFormatNames); ++i)
if(stringValue == Magnum::VertexFormatNames[i]) return Magnum::VertexFormat(i + 1);
return {};
}
}}