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336 lines
13 KiB
336 lines
13 KiB
/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, |
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2020, 2021, 2022, 2023 Vladimír Vondruš <mosra@centrum.cz> |
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
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to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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and/or sell copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included |
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in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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DEALINGS IN THE SOFTWARE. |
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*/ |
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#include <sstream> |
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#include <Corrade/Containers/StridedArrayView.h> |
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#include <Corrade/Containers/String.h> |
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#include <Corrade/PluginManager/AbstractManager.h> |
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#include <Corrade/Utility/Path.h> |
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#include <Corrade/Utility/DebugStl.h> |
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#ifdef CORRADE_TARGET_APPLE |
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#include <Corrade/Containers/Pair.h> |
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#include <Corrade/Utility/System.h> /* isSandboxed() */ |
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#endif |
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#include "Magnum/Image.h" |
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#include "Magnum/ImageView.h" |
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#include "Magnum/PixelFormat.h" |
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#include "Magnum/Math/Color.h" |
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#include "Magnum/Math/Range.h" |
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#include "Magnum/DebugTools/CompareImage.h" |
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#include "Magnum/DebugTools/TextureImage.h" |
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#include "Magnum/GL/Context.h" |
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#include "Magnum/GL/Extensions.h" |
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#include "Magnum/GL/OpenGLTester.h" |
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#include "Magnum/GL/PixelFormat.h" |
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#include "Magnum/GL/Texture.h" |
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#include "Magnum/GL/TextureFormat.h" |
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#include "Magnum/TextureTools/DistanceField.h" |
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#include "Magnum/Trade/AbstractImporter.h" |
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#include "Magnum/Trade/ImageData.h" |
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#ifndef MAGNUM_TARGET_WEBGL |
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#include "Magnum/GL/DebugOutput.h" |
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#endif |
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#include "configure.h" |
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#ifdef MAGNUM_TARGET_GLES |
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#include <Corrade/Containers/StringView.h> /* for SwiftShader detection */ |
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#endif |
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namespace Magnum { namespace TextureTools { namespace Test { namespace { |
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struct DistanceFieldGLTest: GL::OpenGLTester { |
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explicit DistanceFieldGLTest(); |
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/* This tests the GL::Texture overload, which itself calls into the |
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GL::Framebuffer overload so both are covered */ |
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void test(); |
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#ifndef MAGNUM_TARGET_WEBGL |
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void benchmark(); |
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#endif |
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private: |
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PluginManager::Manager<Trade::AbstractImporter> _manager{"nonexistent"}; |
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Containers::String _testDir; |
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}; |
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const struct { |
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const char* name; |
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Vector2i size; |
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Vector2i offset; |
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} TestData[]{ |
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{"", {64, 64}, {}}, |
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{"with offset", {128, 96}, {64, 32}}, |
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}; |
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#ifdef MAGNUM_TARGET_GLES |
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using namespace Containers::Literals; /* for SwiftShader detection */ |
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#endif |
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DistanceFieldGLTest::DistanceFieldGLTest() { |
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addInstancedTests({&DistanceFieldGLTest::test}, |
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Containers::arraySize(TestData)); |
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#ifndef MAGNUM_TARGET_WEBGL |
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addBenchmarks({&DistanceFieldGLTest::benchmark}, 5, BenchmarkType::GpuTime); |
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#endif |
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/* Load the plugin directly from the build tree. Otherwise it's either |
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static and already loaded or not present in the build tree */ |
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#ifdef ANYIMAGEIMPORTER_PLUGIN_FILENAME |
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CORRADE_INTERNAL_ASSERT_OUTPUT(_manager.load(ANYIMAGEIMPORTER_PLUGIN_FILENAME) & PluginManager::LoadState::Loaded); |
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#endif |
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#ifdef TGAIMPORTER_PLUGIN_FILENAME |
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CORRADE_INTERNAL_ASSERT_OUTPUT(_manager.load(TGAIMPORTER_PLUGIN_FILENAME) & PluginManager::LoadState::Loaded); |
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#endif |
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#ifdef CORRADE_TARGET_APPLE |
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if(Utility::System::isSandboxed() |
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#if defined(CORRADE_TARGET_IOS) && defined(CORRADE_TESTSUITE_TARGET_XCTEST) |
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/** @todo Fix this once I persuade CMake to run XCTest tests properly */ |
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&& std::getenv("SIMULATOR_UDID") |
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#endif |
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) { |
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_testDir = Utility::Path::join(Utility::Path::split(*Utility::Path::executableLocation()).first(), "DistanceFieldGLTestFiles"); |
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} else |
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#endif |
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{ |
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_testDir = DISTANCEFIELDGLTEST_FILES_DIR; |
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} |
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} |
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void DistanceFieldGLTest::test() { |
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auto&& data = TestData[testCaseInstanceId()]; |
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setTestCaseDescription(data.name); |
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Containers::Pointer<Trade::AbstractImporter> importer; |
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if(!(importer = _manager.loadAndInstantiate("TgaImporter"))) |
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CORRADE_SKIP("TgaImporter plugin not found."); |
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CORRADE_VERIFY(importer->openFile(Utility::Path::join(_testDir, "input.tga"))); |
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CORRADE_COMPARE(importer->image2DCount(), 1); |
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Containers::Optional<Trade::ImageData2D> inputImage = importer->image2D(0); |
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CORRADE_VERIFY(inputImage); |
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CORRADE_COMPARE(inputImage->format(), PixelFormat::R8Unorm); |
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#ifndef MAGNUM_TARGET_GLES2 |
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const GL::TextureFormat inputFormat = GL::TextureFormat::R8; |
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#elif !defined(MAGNUM_TARGET_WEBGL) |
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GL::TextureFormat inputFormat; |
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if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::texture_rg>()) { |
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CORRADE_INFO("Using" << GL::Extensions::EXT::texture_rg::string()); |
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inputFormat = GL::TextureFormat::R8; |
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} else { |
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inputFormat = GL::TextureFormat::Luminance; /** @todo Luminance8 */ |
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} |
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#else |
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const GL::TextureFormat inputFormat = GL::TextureFormat::Luminance; |
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#endif |
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GL::Texture2D input; |
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input.setMinificationFilter(GL::SamplerFilter::Nearest, GL::SamplerMipmap::Base) |
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.setMagnificationFilter(GL::SamplerFilter::Nearest) |
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.setStorage(1, inputFormat, inputImage->size()); |
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#if !defined(MAGNUM_TARGET_GLES2) || defined(MAGNUM_TARGET_WEBGL) |
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input.setSubImage(0, {}, *inputImage); |
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#else |
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if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::texture_rg>()) |
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input.setSubImage(0, {}, ImageView2D{inputImage->storage(), GL::PixelFormat::Red, GL::PixelType::UnsignedByte, inputImage->size(), inputImage->data()}); |
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else |
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input.setSubImage(0, {}, *inputImage); |
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#endif |
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#ifndef MAGNUM_TARGET_GLES2 |
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const GL::TextureFormat outputFormat = GL::TextureFormat::R8; |
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#elif !defined(MAGNUM_TARGET_WEBGL) |
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GL::TextureFormat outputFormat; |
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if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::texture_rg>()) |
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outputFormat = GL::TextureFormat::R8; |
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else |
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outputFormat = GL::TextureFormat::Luminance; /** @todo Luminance8 */ |
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#else |
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const GL::TextureFormat outputFormat = GL::TextureFormat::RGBA; |
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#endif |
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GL::Texture2D output; |
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output.setMinificationFilter(GL::SamplerFilter::Nearest, GL::SamplerMipmap::Base) |
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.setMagnificationFilter(GL::SamplerFilter::Nearest) |
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.setStorage(1, outputFormat, data.size); |
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TextureTools::DistanceField distanceField{32}; |
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CORRADE_COMPARE(distanceField.radius(), 32); |
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MAGNUM_VERIFY_NO_GL_ERROR(); |
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std::ostringstream out; |
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{ |
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Error redirectError{&out}; |
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distanceField(input, output, |
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Range2Di::fromSize(data.offset, Vector2i{64}) |
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#ifdef MAGNUM_TARGET_GLES |
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, inputImage->size() |
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#endif |
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); |
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} |
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#ifdef MAGNUM_TARGET_GLES |
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/* Probably due to the luminance target pixel format? Works with 4.1, |
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didn't find any commit in between that would clearly affect |
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this. */ |
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if(GL::Context::current().versionString().contains("SwiftShader 4.0.0"_s)) { |
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CORRADE_COMPARE(out.str(), "TextureTools::DistanceField: cannot render to given output texture, unexpected framebuffer status GL::Framebuffer::Status::IncompleteAttachment\n"); |
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CORRADE_SKIP("SwiftShader 4.0.0 has a bug where the framebuffer is considered incomplete."); |
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} else |
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#endif |
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{ |
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CORRADE_COMPARE(out.str(), ""); |
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} |
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Containers::Optional<Image2D> actualOutputImage; |
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#ifndef MAGNUM_TARGET_GLES2 |
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actualOutputImage = Image2D{PixelFormat::R8Unorm}; |
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#elif !defined(MAGNUM_TARGET_WEBGL) |
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if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::texture_rg>()) |
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actualOutputImage = Image2D{GL::PixelFormat::Red, GL::PixelType::UnsignedByte}; |
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else |
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actualOutputImage = Image2D{PixelFormat::R8Unorm}; |
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#else |
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actualOutputImage = Image2D{PixelFormat::RGBA8Unorm}; |
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#endif |
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DebugTools::textureSubImage(output, 0, Range2Di::fromSize(data.offset, Vector2i{64}), *actualOutputImage); |
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MAGNUM_VERIFY_NO_GL_ERROR(); |
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if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) || |
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!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded)) |
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CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found."); |
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/* Use just the first channel if the format is RGBA */ |
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Containers::StridedArrayView2D<UnsignedByte> pixels; |
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if(actualOutputImage->format() == PixelFormat::RGBA8Unorm) |
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pixels = actualOutputImage->pixels<Color4ub>().slice(&Color4ub::r); |
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else |
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pixels = actualOutputImage->pixels<UnsignedByte>(); |
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CORRADE_EXPECT_FAIL_IF(!data.offset.isZero(), |
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"Currently broken if a non-zero offset is used."); |
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CORRADE_COMPARE_WITH( |
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pixels, |
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Utility::Path::join(_testDir, "output.tga"), |
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/* Some mobile GPUs have slight (off-by-one) rounding errors compared |
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to the ground truth, but it's just a very small amount of pixels |
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(20-50 out of the total 4k pixels, iOS/WebGL has slightly more). |
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That's okay. It's also possible that the ground truth itself has |
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rounding errors ;) */ |
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(DebugTools::CompareImageToFile{_manager, 1.0f, 0.178f})); |
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} |
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#ifndef MAGNUM_TARGET_WEBGL |
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void DistanceFieldGLTest::benchmark() { |
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#ifdef MAGNUM_TARGET_GLES |
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if(!GL::Context::current().isExtensionSupported<GL::Extensions::EXT::disjoint_timer_query>()) |
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CORRADE_SKIP(GL::Extensions::EXT::disjoint_timer_query::string() << "is not supported, can't benchmark"); |
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#endif |
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Containers::Pointer<Trade::AbstractImporter> importer; |
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if(!(importer = _manager.loadAndInstantiate("TgaImporter"))) |
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CORRADE_SKIP("TgaImporter plugin not found."); |
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CORRADE_VERIFY(importer->openFile(Utility::Path::join(_testDir, "input.tga"))); |
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CORRADE_COMPARE(importer->image2DCount(), 1); |
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Containers::Optional<Trade::ImageData2D> inputImage = importer->image2D(0); |
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CORRADE_VERIFY(inputImage); |
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CORRADE_COMPARE(inputImage->format(), PixelFormat::R8Unorm); |
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#ifndef MAGNUM_TARGET_GLES2 |
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const GL::TextureFormat inputFormat = GL::TextureFormat::R8; |
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#else |
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GL::TextureFormat inputFormat; |
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if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::texture_rg>()) |
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inputFormat = GL::TextureFormat::R8; |
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else |
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inputFormat = GL::TextureFormat::Luminance; /** @todo Luminance8 */ |
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#endif |
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GL::Texture2D input; |
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input.setMinificationFilter(GL::SamplerFilter::Nearest, GL::SamplerMipmap::Base) |
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.setMagnificationFilter(GL::SamplerFilter::Nearest) |
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.setStorage(1, inputFormat, inputImage->size()); |
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#if !defined(MAGNUM_TARGET_GLES2) || defined(MAGNUM_TARGET_WEBGL) |
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input.setSubImage(0, {}, *inputImage); |
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#else |
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if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::texture_rg>()) |
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input.setSubImage(0, {}, ImageView2D{inputImage->storage(), GL::PixelFormat::Red, GL::PixelType::UnsignedByte, inputImage->size(), inputImage->data()}); |
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else |
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input.setSubImage(0, {}, *inputImage); |
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#endif |
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#ifndef MAGNUM_TARGET_GLES2 |
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const GL::TextureFormat outputFormat = GL::TextureFormat::R8; |
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#else |
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GL::TextureFormat outputFormat; |
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if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::texture_rg>()) |
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outputFormat = GL::TextureFormat::R8; |
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else |
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outputFormat = GL::TextureFormat::Luminance; /** @todo Luminance8 */ |
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#endif |
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GL::Texture2D output; |
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output.setMinificationFilter(GL::SamplerFilter::Nearest, GL::SamplerMipmap::Base) |
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.setMagnificationFilter(GL::SamplerFilter::Nearest) |
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.setStorage(1, outputFormat, Vector2i{64}); |
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MAGNUM_VERIFY_NO_GL_ERROR(); |
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TextureTools::DistanceField distanceField{32}; |
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/* So it doesn't spam too much */ |
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GL::DebugOutput::setCallback(nullptr); |
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CORRADE_BENCHMARK(5) { |
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/* This is creating the shader from scratch every time, so no wonder |
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it's so freaking slow */ |
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distanceField(input, output, {{}, Vector2i{64}} |
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#ifdef MAGNUM_TARGET_GLES |
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, inputImage->size() |
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#endif |
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); |
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MAGNUM_VERIFY_NO_GL_ERROR(); |
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} |
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GL::DebugOutput::setDefaultCallback(); |
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} |
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#endif |
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}}}} |
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CORRADE_TEST_MAIN(Magnum::TextureTools::Test::DistanceFieldGLTest)
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