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magnum/src/Magnum/Test/ImageViewTest.cpp

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/*
This file is part of Magnum.
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
2020, 2021, 2022, 2023, 2024, 2025
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.
*/
/* Included as first to check that we *really* don't need the StridedArrayView
header for definition of pixels(). We actually need, but just for the
arrayCast() template, which is forward-declared. */
#include "Magnum/ImageView.h"
#include <Corrade/Containers/StridedArrayView.h>
#include <Corrade/Containers/String.h>
#include <Corrade/TestSuite/Tester.h>
#include <Corrade/Utility/DebugStl.h> /** @todo remove once dataProperties() std::pair is gone */
#include "Magnum/PixelFormat.h"
#include "Magnum/Math/Color.h"
namespace Magnum { namespace Test { namespace {
struct ImageViewTest: TestSuite::Tester {
explicit ImageViewTest();
template<class T> void constructGeneric();
template<class T> void constructGenericEmpty();
template<class T> void constructImplementationSpecific();
template<class T> void constructImplementationSpecificEmpty();
template<class T> void constructCompressedGeneric();
template<class T> void constructCompressedGenericEmpty();
template<class T> void constructCompressedImplementationSpecific();
template<class T> void constructCompressedImplementationSpecificEmpty();
void construct3DFrom1D();
void construct3DFrom2D();
void constructCompressed3DFrom1D();
void constructCompressed3DFrom2D();
void constructFromMutable();
void constructCompressedFromMutable();
void constructNullptr();
void constructInvalidSize();
void constructInvalidCubeMap();
void constructCompressedInvalidSize();
void constructCompressedInvalidCubeMap();
void dataProperties();
void dataPropertiesCompressed();
template<class T> void setData();
template<class T> void setDataCompressed();
void setDataInvalidSize();
void setDataCompressedInvalidSize();
template<class T> void pixels1D();
template<class T> void pixels2D();
template<class T> void pixels3D();
void pixelsNullptr();
};
template<class> struct MutabilityTraits;
template<> struct MutabilityTraits<const char> {
static const char* name() { return "ImageView"; }
};
template<> struct MutabilityTraits<char> {
static const char* name() { return "MutableImageView"; }
};
ImageViewTest::ImageViewTest() {
addTests({&ImageViewTest::constructGeneric<const char>,
&ImageViewTest::constructGeneric<char>,
&ImageViewTest::constructGenericEmpty<const char>,
&ImageViewTest::constructGenericEmpty<char>,
&ImageViewTest::constructImplementationSpecific<const char>,
&ImageViewTest::constructImplementationSpecific<char>,
&ImageViewTest::constructImplementationSpecificEmpty<const char>,
&ImageViewTest::constructImplementationSpecificEmpty<char>,
&ImageViewTest::constructCompressedGeneric<const char>,
&ImageViewTest::constructCompressedGeneric<char>,
&ImageViewTest::constructCompressedGenericEmpty<const char>,
&ImageViewTest::constructCompressedGenericEmpty<char>,
&ImageViewTest::constructCompressedImplementationSpecific<const char>,
&ImageViewTest::constructCompressedImplementationSpecific<char>,
&ImageViewTest::constructCompressedImplementationSpecificEmpty<const char>,
&ImageViewTest::constructCompressedImplementationSpecificEmpty<char>,
&ImageViewTest::construct3DFrom1D,
&ImageViewTest::construct3DFrom2D,
&ImageViewTest::constructCompressed3DFrom1D,
&ImageViewTest::constructCompressed3DFrom2D,
&ImageViewTest::constructFromMutable,
&ImageViewTest::constructCompressedFromMutable,
&ImageViewTest::constructNullptr,
&ImageViewTest::constructInvalidSize,
&ImageViewTest::constructInvalidCubeMap,
&ImageViewTest::constructCompressedInvalidSize,
&ImageViewTest::constructCompressedInvalidCubeMap,
&ImageViewTest::dataProperties,
&ImageViewTest::dataPropertiesCompressed,
&ImageViewTest::setData<const char>,
&ImageViewTest::setData<char>,
&ImageViewTest::setDataCompressed<const char>,
&ImageViewTest::setDataCompressed<char>,
&ImageViewTest::setDataInvalidSize,
&ImageViewTest::setDataCompressedInvalidSize,
&ImageViewTest::pixels1D<const char>,
&ImageViewTest::pixels1D<char>,
&ImageViewTest::pixels2D<const char>,
&ImageViewTest::pixels2D<char>,
&ImageViewTest::pixels3D<const char>,
&ImageViewTest::pixels3D<char>,
&ImageViewTest::pixelsNullptr});
}
namespace GL {
enum class PixelFormat { RGB = 666 };
enum class PixelType { UnsignedShort = 1337 };
/* Clang -Wmissing-prototypes warns otherwise, even though this is in an
anonymous namespace */
UnsignedInt pixelFormatSize(PixelFormat, PixelType);
UnsignedInt pixelFormatSize(PixelFormat format, PixelType type) {
CORRADE_INTERNAL_ASSERT(format == PixelFormat::RGB);
CORRADE_INTERNAL_ASSERT(type == PixelType::UnsignedShort);
#ifdef CORRADE_NO_ASSERT
static_cast<void>(format);
static_cast<void>(type);
#endif
return 6;
}
enum class CompressedPixelFormat { RGBS3tcDxt1 = 21 };
}
namespace Vk {
enum class PixelFormat { R32G32B32F = 42 };
/* Clang -Wmissing-prototypes warns otherwise, even though this is in an
anonymous namespace */
UnsignedInt pixelFormatSize(PixelFormat);
UnsignedInt pixelFormatSize(PixelFormat format) {
CORRADE_INTERNAL_ASSERT(format == PixelFormat::R32G32B32F);
#ifdef CORRADE_NO_ASSERT
static_cast<void>(format);
#endif
return 12;
}
enum class CompressedPixelFormat { Bc1SRGBAlpha = 42 };
}
template<class T> void ImageViewTest::constructGeneric() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
{
T data[4*4]{};
ImageView<2, T> a{PixelFormat::RGBA8Unorm, {1, 3}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 4);
CORRADE_COMPARE(a.format(), PixelFormat::RGBA8Unorm);
CORRADE_COMPARE(a.formatExtra(), 0);
CORRADE_COMPARE(a.pixelSize(), 4);
CORRADE_COMPARE(a.size(), (Vector2i{1, 3}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 4*4);
} {
T data[3*2]{};
ImageView<2, T> a{PixelStorage{}.setAlignment(1),
PixelFormat::R16UI, {1, 3}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), PixelFormat::R16UI);
CORRADE_COMPARE(a.formatExtra(), 0);
CORRADE_COMPARE(a.pixelSize(), 2);
CORRADE_COMPARE(a.size(), (Vector2i{1, 3}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*2);
}
}
template<class T> void ImageViewTest::constructGenericEmpty() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
{
ImageView<2, T> a{PixelFormat::RG32F, {2, 6}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 4);
CORRADE_COMPARE(a.format(), PixelFormat::RG32F);
CORRADE_COMPARE(a.formatExtra(), 0);
CORRADE_COMPARE(a.pixelSize(), 8);
CORRADE_COMPARE(a.size(), (Vector2i{2, 6}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
} {
ImageView<2, T> a{PixelStorage{}.setAlignment(1),
PixelFormat::RGB16F, {8, 3}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), PixelFormat::RGB16F);
CORRADE_COMPARE(a.formatExtra(), 0);
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), (Vector2i{8, 3}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
}
}
template<class T> void ImageViewTest::constructImplementationSpecific() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
/* Single format */
{
T data[3*12]{};
ImageView<2, T> a{Vk::PixelFormat::R32G32B32F, {1, 3}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 4);
CORRADE_COMPARE(a.format(), pixelFormatWrap(Vk::PixelFormat::R32G32B32F));
CORRADE_COMPARE(a.formatExtra(), 0);
CORRADE_COMPARE(a.pixelSize(), 12);
CORRADE_COMPARE(a.size(), (Vector2i{1, 3}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*12);
} {
T data[3*12]{};
ImageView<2, T> a{PixelStorage{}.setAlignment(1),
Vk::PixelFormat::R32G32B32F, {1, 3}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), pixelFormatWrap(Vk::PixelFormat::R32G32B32F));
CORRADE_COMPARE(a.formatExtra(), 0);
CORRADE_COMPARE(a.pixelSize(), 12);
CORRADE_COMPARE(a.size(), (Vector2i{1, 3}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*12);
}
/* Format + extra */
{
T data[3*8]{};
ImageView<2, T> a{GL::PixelFormat::RGB, GL::PixelType::UnsignedShort, {1, 3}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 4);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), Vector2i(1, 3));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*8);
} {
T data[3*6]{};
ImageView<2, T> a{PixelStorage{}.setAlignment(1),
GL::PixelFormat::RGB, GL::PixelType::UnsignedShort, {1, 3}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), Vector2i(1, 3));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*6);
}
/* Manual pixel size */
{
T data[3*6]{};
ImageView<2, T> a{PixelStorage{}.setAlignment(1), 666, 1337, 6, {1, 3}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), Vector2i(1, 3));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*6);
}
}
template<class T> void ImageViewTest::constructImplementationSpecificEmpty() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
/* Single format */
{
ImageView<2, T> a{Vk::PixelFormat::R32G32B32F, {2, 16}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 4);
CORRADE_COMPARE(a.format(), pixelFormatWrap(Vk::PixelFormat::R32G32B32F));
CORRADE_COMPARE(a.formatExtra(), 0);
CORRADE_COMPARE(a.pixelSize(), 12);
CORRADE_COMPARE(a.size(), (Vector2i{2, 16}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
} {
ImageView<2, T> a{PixelStorage{}.setAlignment(1),
Vk::PixelFormat::R32G32B32F, {1, 2}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), pixelFormatWrap(Vk::PixelFormat::R32G32B32F));
CORRADE_COMPARE(a.formatExtra(), 0);
CORRADE_COMPARE(a.pixelSize(), 12);
CORRADE_COMPARE(a.size(), (Vector2i{1, 2}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
}
/* Format + extra */
{
ImageView<2, T> a{GL::PixelFormat::RGB, GL::PixelType::UnsignedShort, {1, 3}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 4);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), (Vector2i{1, 3}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
} {
ImageView<2, T> a{PixelStorage{}.setAlignment(1),
GL::PixelFormat::RGB, GL::PixelType::UnsignedShort, {8, 2}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), (Vector2i{8, 2}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
}
/* Manual pixel size */
{
ImageView<2, T> a{PixelStorage{}.setAlignment(1), 666, 1337, 6, {3, 3}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), (Vector2i{3, 3}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
}
}
template<class T> void ImageViewTest::constructCompressedGeneric() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
{
T data[8]{};
CompressedImageView<2, T> a{CompressedPixelFormat::Bc1RGBAUnorm, {4, 4}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{0});
CORRADE_COMPARE(a.format(), CompressedPixelFormat::Bc1RGBAUnorm);
CORRADE_COMPARE(a.size(), (Vector2i{4, 4}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 8);
} {
T data[8]{};
CompressedImageView<2, T> a{CompressedPixelStorage{}.setCompressedBlockSize(Vector3i{4}),
CompressedPixelFormat::Bc1RGBAUnorm, {4, 4},
data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(a.format(), CompressedPixelFormat::Bc1RGBAUnorm);
CORRADE_COMPARE(a.size(), (Vector2i{4, 4}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 8);
}
}
template<class T> void ImageViewTest::constructCompressedGenericEmpty() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
{
CompressedImageView<2, T> a{CompressedPixelFormat::Bc1RGBAUnorm, {8, 16}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{0});
CORRADE_COMPARE(a.format(), CompressedPixelFormat::Bc1RGBAUnorm);
CORRADE_COMPARE(a.size(), (Vector2i{8, 16}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
} {
CompressedImageView<2, T> a{CompressedPixelStorage{}.setCompressedBlockSize(Vector3i{4}),
CompressedPixelFormat::Bc1RGBAUnorm, {8, 16}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(a.format(), CompressedPixelFormat::Bc1RGBAUnorm);
CORRADE_COMPARE(a.size(), (Vector2i{8, 16}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
}
}
template<class T> void ImageViewTest::constructCompressedImplementationSpecific() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
/* Format with autodetection */
{
T data[8]{};
CompressedImageView<2, T> a{GL::CompressedPixelFormat::RGBS3tcDxt1, {4, 4},
data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{0});
CORRADE_COMPARE(a.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(a.size(), (Vector2i{4, 4}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 8);
} {
T data[8]{};
CompressedImageView<2, T> a{CompressedPixelStorage{}.setCompressedBlockSize(Vector3i{4}),
GL::CompressedPixelFormat::RGBS3tcDxt1, {4, 4}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(a.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(a.size(), (Vector2i{4, 4}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 8);
}
/* Manual properties not implemented yet */
}
template<class T> void ImageViewTest::constructCompressedImplementationSpecificEmpty() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
/* Format with autodetection */
{
CompressedImageView<2, T> a{GL::CompressedPixelFormat::RGBS3tcDxt1, {8, 16}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{0});
CORRADE_COMPARE(a.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(a.size(), (Vector2i{8, 16}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
} {
CompressedImageView<2, T> a{CompressedPixelStorage{}.setCompressedBlockSize(Vector3i{4}),
GL::CompressedPixelFormat::RGBS3tcDxt1, {4, 8}, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(a.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(a.size(), (Vector2i{4, 8}));
CORRADE_COMPARE(a.data(), static_cast<const void*>(nullptr));
}
/* Manual properties not implemented yet */
}
void ImageViewTest::construct3DFrom1D() {
/* Copy of "Manual pixel size" in constructImplementationSpecific(), as
that exposes most fields */
const char data[3*6]{};
/** @todo use a real flag once it exists */
ImageView1D a{PixelStorage{}.setAlignment(1), 666, 1337, 6, 3, data, ImageFlag1D(0xdea0)};
CORRADE_COMPARE(a.flags(), ImageFlag1D(0xdea0));
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), 3);
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*6);
/* Not testing the flags parameter here to be sure implicit conversion
works as well, it's tested in construct3DFrom2D() below */
ImageView3D b = a;
CORRADE_COMPARE(b.flags(), ImageFlag3D(0xdea0));
CORRADE_COMPARE(b.storage().alignment(), 1);
CORRADE_COMPARE(b.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(b.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(b.pixelSize(), 6);
CORRADE_COMPARE(b.size(), (Vector3i{3, 1, 1}));
CORRADE_COMPARE(b.data(), &data[0]);
CORRADE_COMPARE(b.data().size(), 3*6);
/* Conversion the other way is not allowed (will be later, but explicitly
via a slice<1>() like with StridedArrayView); conversion from const to
mutable is not possible either */
CORRADE_VERIFY(std::is_convertible<ImageView1D, ImageView3D>::value);
CORRADE_VERIFY(!std::is_convertible<ImageView3D, ImageView1D>::value);
CORRADE_VERIFY(!std::is_convertible<ImageView1D, MutableImageView3D>::value);
}
void ImageViewTest::construct3DFrom2D() {
/* Copy of "Manual pixel size" in constructImplementationSpecific(), as
that exposes most fields */
char data[3*6]{};
MutableImageView2D a{PixelStorage{}.setAlignment(1), 666, 1337, 6, {1, 3}, data, ImageFlag2D::Array|ImageFlag2D(0xde00)};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array|ImageFlag2D(0xde00));
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), (Vector2i{1, 3}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*6);
MutableImageView3D b = {a, ImageFlag3D(0x00a0)};
/* The Array flag got implicitly stripped away, the rest got passed through
and combined with the flags argument */
CORRADE_COMPARE(b.flags(), ImageFlag3D(0xdea0));
CORRADE_COMPARE(b.storage().alignment(), 1);
CORRADE_COMPARE(b.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(b.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(b.pixelSize(), 6);
CORRADE_COMPARE(b.size(), (Vector3i{1, 3, 1}));
CORRADE_COMPARE(b.data(), &data[0]);
CORRADE_COMPARE(b.data().size(), 3*6);
/* Conversion the other way is not allowed (will be later, but explicitly
via a slice<1>() like with StridedArrayView) */
CORRADE_VERIFY(std::is_convertible<MutableImageView1D, MutableImageView3D>::value);
CORRADE_VERIFY(!std::is_convertible<MutableImageView3D, MutableImageView1D>::value);
}
void ImageViewTest::constructCompressed3DFrom1D() {
/* Copied from constructCompressedImplementationSpecific(), as that exposes
most fields */
/** @todo S3TC doesn't have 1D compression so this might blow up once we
check for block sizes */
const char data[8]{};
/** @todo use a real flag once it exists */
CompressedImageView1D a{CompressedPixelStorage{}.setCompressedBlockSize(Vector3i{4}),
GL::CompressedPixelFormat::RGBS3tcDxt1, 4, data, ImageFlag1D(0xdea0)};
CORRADE_COMPARE(a.flags(), ImageFlag1D(0xdea0));
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(a.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(a.size(), 4);
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 8);
/* Not testing the flags parameter here to be sure implicit conversion
works as well, it's tested in constructCompressed3DFrom2D() below */
CompressedImageView3D b = a;
CORRADE_COMPARE(b.flags(), ImageFlag3D(0xdea0));
CORRADE_COMPARE(b.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(b.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(b.size(), (Vector3i{4, 1, 1}));
CORRADE_COMPARE(b.data(), &data[0]);
CORRADE_COMPARE(b.data().size(), 8);
/* Conversion the other way is not allowed (will be later, but explicitly
via a slice<1>() like with StridedArrayView); conversion from const to
mutable is not possible either */
CORRADE_VERIFY(std::is_convertible<CompressedImageView1D, CompressedImageView3D>::value);
CORRADE_VERIFY(!std::is_convertible<CompressedImageView3D, CompressedImageView1D>::value);
CORRADE_VERIFY(!std::is_convertible<CompressedImageView1D, MutableCompressedImageView3D>::value);
}
void ImageViewTest::constructCompressed3DFrom2D() {
/* Copied from constructCompressedImplementationSpecific(), as that exposes
most fields */
char data[8*2]{};
MutableCompressedImageView2D a{CompressedPixelStorage{}.setCompressedBlockSize(Vector3i{4}),
GL::CompressedPixelFormat::RGBS3tcDxt1, {4, 8}, data, ImageFlag2D::Array|ImageFlag2D(0xde00)};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array|ImageFlag2D(0xde00));
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(a.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(a.size(), (Vector2i{4, 8}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 8*2);
MutableCompressedImageView3D b = {a, ImageFlag3D(0x00a0)};
/* The Array flag got implicitly stripped away, the rest got passed through
and combined with the flags argument */
CORRADE_COMPARE(b.flags(), ImageFlag3D(0xdea0));
CORRADE_COMPARE(b.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(b.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(b.size(), (Vector3i{4, 8, 1}));
CORRADE_COMPARE(b.data(), &data[0]);
CORRADE_COMPARE(b.data().size(), 8*2);
/* Conversion the other way is not allowed (will be later, but explicitly
via a slice<1>() like with StridedArrayView) */
CORRADE_VERIFY(std::is_convertible<MutableCompressedImageView1D, MutableCompressedImageView3D>::value);
CORRADE_VERIFY(!std::is_convertible<MutableCompressedImageView3D, MutableCompressedImageView1D>::value);
}
void ImageViewTest::constructFromMutable() {
/* Copy of "Manual pixel size" in constructImplementationSpecific(), as
that exposes most fields */
char data[3*6]{};
MutableImageView2D a{PixelStorage{}.setAlignment(1), 666, 1337, 6, {1, 3}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(a.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(a.pixelSize(), 6);
CORRADE_COMPARE(a.size(), Vector2i(1, 3));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 3*6);
ImageView2D b = a;
CORRADE_COMPARE(b.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(b.storage().alignment(), 1);
CORRADE_COMPARE(b.format(), pixelFormatWrap(GL::PixelFormat::RGB));
CORRADE_COMPARE(b.formatExtra(), UnsignedInt(GL::PixelType::UnsignedShort));
CORRADE_COMPARE(b.pixelSize(), 6);
CORRADE_COMPARE(b.size(), Vector2i(1, 3));
CORRADE_COMPARE(b.data(), &data[0]);
CORRADE_COMPARE(b.data().size(), 3*6);
}
void ImageViewTest::constructCompressedFromMutable() {
/* Copied from constructCompressedImplementationSpecific(), as that exposes
most fields */
char data[8]{};
MutableCompressedImageView2D a{CompressedPixelStorage{}.setCompressedBlockSize(Vector3i{4}),
GL::CompressedPixelFormat::RGBS3tcDxt1, {4, 4}, data, ImageFlag2D::Array};
CORRADE_COMPARE(a.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(a.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(a.size(), (Vector2i{4, 4}));
CORRADE_COMPARE(a.data(), &data[0]);
CORRADE_COMPARE(a.data().size(), 8);
CompressedImageView2D b = a;
CORRADE_COMPARE(b.flags(), ImageFlag2D::Array);
CORRADE_COMPARE(b.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(b.format(), compressedPixelFormatWrap(GL::CompressedPixelFormat::RGBS3tcDxt1));
CORRADE_COMPARE(b.size(), (Vector2i{4, 4}));
CORRADE_COMPARE(b.data(), &data[0]);
CORRADE_COMPARE(b.data().size(), 8);
}
void ImageViewTest::constructNullptr() {
CORRADE_SKIP_IF_NO_ASSERT();
Containers::String out;
Error redirectError{&out};
ImageView2D{PixelFormat::RGB8Unorm, {1, 3}, nullptr};
CORRADE_COMPARE(out, "ImageView: data too small, got 0 but expected at least 12 bytes\n");
}
void ImageViewTest::constructInvalidSize() {
CORRADE_SKIP_IF_NO_ASSERT();
Containers::String out;
Error redirectError{&out};
/* Doesn't consider alignment */
const char data[3*3]{};
ImageView2D{PixelFormat::RGB8Unorm, {1, 3}, data};
CORRADE_COMPARE(out, "ImageView: data too small, got 9 but expected at least 12 bytes\n");
}
void ImageViewTest::constructInvalidCubeMap() {
CORRADE_SKIP_IF_NO_ASSERT();
const char data[4*3*18*4]{};
Containers::String out;
Error redirectError{&out};
ImageView3D{PixelFormat::RGBA8Unorm, {3, 3, 5}, data, ImageFlag3D::CubeMap};
ImageView3D{PixelFormat::RGBA8Unorm, {3, 4, 6}, data, ImageFlag3D::CubeMap};
ImageView3D{PixelFormat::RGBA8Unorm, {3, 3, 17}, data, ImageFlag3D::CubeMap |ImageFlag3D::Array};
ImageView3D{PixelFormat::RGBA8Unorm, {4, 3, 18}, data, ImageFlag3D::CubeMap |ImageFlag3D::Array};
/* The data-less variant should call into the same assertion helper */
ImageView3D{PixelFormat::RGBA8Unorm, {3, 3, 5}, ImageFlag3D::CubeMap};
CORRADE_COMPARE(out,
"ImageView: expected exactly 6 faces for a cube map, got 5\n"
"ImageView: expected square faces for a cube map, got {3, 4}\n"
"ImageView: expected a multiple of 6 faces for a cube map array, got 17\n"
"ImageView: expected square faces for a cube map, got {4, 3}\n"
"ImageView: expected exactly 6 faces for a cube map, got 5\n");
}
void ImageViewTest::constructCompressedInvalidSize() {
CORRADE_EXPECT_FAIL("Size checking for compressed image data is not implemented yet.");
const char data[2]{};
/* Too small for given format */
{
Containers::String out;
Error redirectError{&out};
CompressedImageView2D{CompressedPixelFormat::Bc2RGBAUnorm, {4, 4}, data};
CORRADE_COMPARE(out, "CompressedImageView: data too small, got 2 but expected at least 4 bytes\n");
/* Size should be rounded up even if the image size is not full block */
} {
Containers::String out;
Error redirectError{&out};
CompressedImageView2D{CompressedPixelFormat::Bc2RGBAUnorm, {2, 2}, data};
CORRADE_COMPARE(out, "CompressedImageView: data too small, got 2 but expected at least 4 bytes\n");
}
}
void ImageViewTest::constructCompressedInvalidCubeMap() {
CORRADE_SKIP_IF_NO_ASSERT();
const char data[8*18]{};
Containers::String out;
Error redirectError{&out};
CompressedImageView3D{CompressedPixelFormat::Bc1RGBAUnorm, {3, 3, 5}, data, ImageFlag3D::CubeMap};
CompressedImageView3D{CompressedPixelFormat::Bc1RGBAUnorm, {3, 4, 6}, data, ImageFlag3D::CubeMap};
CompressedImageView3D{CompressedPixelFormat::Bc1RGBAUnorm, {3, 3, 17}, data, ImageFlag3D::CubeMap |ImageFlag3D::Array};
CompressedImageView3D{CompressedPixelFormat::Bc1RGBAUnorm, {4, 3, 18}, data, ImageFlag3D::CubeMap |ImageFlag3D::Array};
/* The data-less variant should call into the same assertion helper */
CompressedImageView3D{CompressedPixelFormat::Bc1RGBAUnorm, {3, 3, 5}, ImageFlag3D::CubeMap};
CORRADE_COMPARE(out,
"CompressedImageView: expected exactly 6 faces for a cube map, got 5\n"
"CompressedImageView: expected square faces for a cube map, got {3, 4}\n"
"CompressedImageView: expected a multiple of 6 faces for a cube map array, got 17\n"
"CompressedImageView: expected square faces for a cube map, got {4, 3}\n"
"CompressedImageView: expected exactly 6 faces for a cube map, got 5\n");
}
void ImageViewTest::dataProperties() {
const char data[224]{};
ImageView3D image{
PixelStorage{}
.setAlignment(8)
.setSkip({3, 2, 1}),
PixelFormat::R8Unorm, {2, 4, 6}, data};
CORRADE_COMPARE(image.dataProperties(),
(std::pair<Math::Vector3<std::size_t>, Math::Vector3<std::size_t>>{{3, 16, 32}, {8, 4, 6}}));
}
void ImageViewTest::dataPropertiesCompressed() {
/* Yes, I know, this is totally bogus and doesn't match the BC1 format */
const char data[1]{};
CompressedImageView3D image{
CompressedPixelStorage{}
.setCompressedBlockSize({3, 4, 5})
.setCompressedBlockDataSize(16)
.setImageHeight(12)
.setSkip({5, 8, 11}),
CompressedPixelFormat::Bc1RGBAUnorm, {2, 8, 11},
data};
CORRADE_COMPARE(image.dataProperties(),
(std::pair<Math::Vector3<std::size_t>, Math::Vector3<std::size_t>>{{2*16, 2*16, 9*16}, {1, 3, 3}}));
}
template<class T> void ImageViewTest::setData() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
T data[3*3]{};
ImageView<2, T> a{PixelStorage{}.setAlignment(1),
PixelFormat::RGB8Snorm, {1, 3}, data};
T data2[3*3]{};
a.setData(data2);
CORRADE_COMPARE(a.storage().alignment(), 1);
CORRADE_COMPARE(a.format(), PixelFormat::RGB8Snorm);
CORRADE_COMPARE(a.size(), Vector2i(1, 3));
CORRADE_COMPARE(a.data(), &data2[0]);
}
template<class T> void ImageViewTest::setDataCompressed() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
T data[8]{};
CompressedImageView<2, T> a{
CompressedPixelStorage{}.setCompressedBlockSize(Vector3i{4}),
CompressedPixelFormat::Bc1RGBAUnorm, {4, 4}, data};
T data2[16]{};
a.setData(data2);
CORRADE_COMPARE(a.storage().compressedBlockSize(), Vector3i{4});
CORRADE_COMPARE(a.format(), CompressedPixelFormat::Bc1RGBAUnorm);
CORRADE_COMPARE(a.size(), Vector2i(4, 4));
CORRADE_COMPARE(a.data(), &data2[0]);
}
void ImageViewTest::setDataInvalidSize() {
CORRADE_SKIP_IF_NO_ASSERT();
Containers::String out;
Error redirectError{&out};
ImageView2D image{PixelFormat::RGB8Unorm, {1, 3}};
const char data[3*3]{};
/* Doesn't consider alignment */
image.setData(data);
CORRADE_COMPARE(out, "ImageView::setData(): data too small, got 9 but expected at least 12 bytes\n");
}
void ImageViewTest::setDataCompressedInvalidSize() {
CORRADE_EXPECT_FAIL("Size checking for compressed image data is not implemented yet.");
const char data[2]{};
/* Too small for given format */
{
Containers::String out;
Error redirectError{&out};
CompressedImageView2D{CompressedPixelFormat::Bc2RGBAUnorm, {4, 4}, data};
CORRADE_COMPARE(out, "CompressedImageView::setData(): data too small, got 2 but expected at least 4 bytes\n");
/* Size should be rounded up even if the image size is not that big */
} {
Containers::String out;
Error redirectError{&out};
CompressedImageView2D{CompressedPixelFormat::Bc2RGBAUnorm, {2, 2}, data};
CORRADE_COMPARE(out, "CompressedImageView::setData(): data too small, got 2 but expected at least 4 bytes\n");
}
}
template<class T> void ImageViewTest::pixels1D() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
ImageView<1, T> image{
PixelStorage{}
.setAlignment(1) /** @todo alignment 4 expects 17 bytes. what */
.setSkip({3, 0, 0}),
PixelFormat::RGB8Unorm, 2,
{nullptr, 15}};
/* Full test is in ImageTest, this is just a sanity check */
auto pixels = image.template pixels<Color3ub>();
CORRADE_COMPARE(decltype(pixels)::Dimensions, 1);
CORRADE_COMPARE(std::is_const<typename decltype(pixels)::Type>::value, std::is_const<T>::value);
CORRADE_COMPARE(pixels.size(), 2);
CORRADE_COMPARE(pixels.stride(), 3);
CORRADE_COMPARE(pixels.data(), image.data() + 3*3);
}
template<class T> void ImageViewTest::pixels2D() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
ImageView<2, T> image{
PixelStorage{}
.setAlignment(4)
.setSkip({3, 2, 0})
.setRowLength(6),
PixelFormat::RGB8Unorm, {2, 4},
{nullptr, 120}};
/* Full test is in ImageTest, this is just a sanity check */
auto pixels = image.template pixels<Color3ub>();
CORRADE_COMPARE(decltype(pixels)::Dimensions, 2);
CORRADE_COMPARE(std::is_const<typename decltype(pixels)::Type>::value, std::is_const<T>::value);
CORRADE_COMPARE(pixels.size(), (Containers::Size2D{4, 2}));
CORRADE_COMPARE(pixels.stride(), (Containers::Stride2D{20, 3}));
CORRADE_COMPARE(pixels.data(), image.data() + 2*20 + 3*3);
}
template<class T> void ImageViewTest::pixels3D() {
setTestCaseTemplateName(MutabilityTraits<T>::name());
ImageView<3, T> image{
PixelStorage{}
.setAlignment(4)
.setSkip({3, 2, 1})
.setRowLength(6)
.setImageHeight(7),
PixelFormat::RGB8Unorm, {2, 4, 3},
{nullptr, 560}};
/* Full test is in ImageTest, this is just a sanity check */
auto pixels = image.template pixels<Color3ub>();
CORRADE_COMPARE(decltype(pixels)::Dimensions, 3);
CORRADE_COMPARE(std::is_const<typename decltype(pixels)::Type>::value, std::is_const<T>::value);
CORRADE_COMPARE(pixels.size(), (Containers::Size3D{3, 4, 2}));
CORRADE_COMPARE(pixels.stride(), (Containers::Stride3D{140, 20, 3}));
CORRADE_COMPARE(pixels.data(), image.data() + 140 + 2*20 + 3*3);
}
void ImageViewTest::pixelsNullptr() {
ImageView3D image{PixelFormat::RGB8Unorm, {2, 4, 3}};
CORRADE_COMPARE(image.data(), static_cast<const void*>(nullptr));
CORRADE_COMPARE(image.data().size(), 0);
CORRADE_COMPARE(image.pixels().data(), nullptr);
CORRADE_COMPARE(image.pixels().size(), Containers::Size4D{});
CORRADE_COMPARE(image.pixels<Color3ub>().data(), nullptr);
CORRADE_COMPARE(image.pixels<Color3ub>().size(), Containers::Size3D{});
}
}}}
CORRADE_TEST_MAIN(Magnum::Test::ImageViewTest)