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magnum/src/Magnum/Shaders/Test/ShadersGLBenchmark.cpp

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Shaders: benchmark all shader variants. Took me a while (several years?) to figure out a way to benchmark this without basically duplicating the testing effort and without new variants being too hard to add.
5 years ago
/*
This file is part of Magnum.
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
2020, 2021 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 <Corrade/PluginManager/Manager.h>
#include <Corrade/Utility/Directory.h>
#include <Corrade/Utility/FormatStl.h>
#include "Magnum/Image.h"
#include "Magnum/ImageView.h"
#include "Magnum/PixelFormat.h"
#include "Magnum/DebugTools/CompareImage.h"
#include "Magnum/GL/Extensions.h"
#include "Magnum/GL/Framebuffer.h"
#include "Magnum/GL/Mesh.h"
#include "Magnum/GL/OpenGLTester.h"
#include "Magnum/GL/Renderbuffer.h"
#include "Magnum/GL/RenderbufferFormat.h"
#include "Magnum/GL/Texture.h"
#include "Magnum/GL/TextureFormat.h"
#include "Magnum/Math/Color.h"
#include "Magnum/Math/Matrix4.h"
#include "Magnum/MeshTools/Compile.h"
#include "Magnum/MeshTools/Duplicate.h"
#include "Magnum/MeshTools/Interleave.h"
#include "Magnum/Primitives/Grid.h"
#include "Magnum/Shaders/DistanceFieldVectorGL.h"
#include "Magnum/Shaders/FlatGL.h"
#include "Magnum/Shaders/MeshVisualizerGL.h"
#include "Magnum/Shaders/PhongGL.h"
#include "Magnum/Shaders/VertexColorGL.h"
#include "Magnum/Shaders/VectorGL.h"
#include "Magnum/Trade/AbstractImporter.h"
#include "Magnum/Trade/MeshData.h"
#include "configure.h"
namespace Magnum { namespace Shaders { namespace Test { namespace {
/*
The goal of this is to not duplicate all testing work here, but instead
have a set of simple-to-setup benchmarks with trivial output that allow for
measuring cost of particular shader features or seeing performance
differences between different implementations of the same (e.g., using the
VertexColor shader vs Flat with vertex colors enabled). Thus:
- all shaders render the same mesh, 2D shaders only ignore the Z
coordinate (so it should be possible to compare the perf between 2D and
3D)
- the mesh contains all attributes the shader might ever need including
instanced ones, to avoid differences caused by different memory access
patterns
- transformation and projection is identity
- textures are always single-pixel to measure the sampler overhead, not
memory access overhead
- if texture transformation is enabled, it's identity
- if instancing features are enabled, there's exactly one instance
- if alpha mask is enabled, it's 0.0
- uniforms / binding overhead is not included in the benchmark
*/
struct ShadersGLBenchmark: GL::OpenGLTester {
explicit ShadersGLBenchmark();
void renderSetup();
void renderTeardown();
template<UnsignedInt dimensions> void flat();
void phong();
template<UnsignedInt dimensions> void vertexColor();
template<UnsignedInt dimensions> void vector();
template<UnsignedInt dimensions> void distanceFieldVector();
void meshVisualizer2D();
void meshVisualizer3D();
/** @todo mesh visualizer TBN, how to verify output? */
private:
PluginManager::Manager<Trade::AbstractImporter> _manager{"nonexistent"};
GL::Renderbuffer _color;
#ifndef MAGNUM_TARGET_GLES2
GL::Renderbuffer _objectId{NoCreate};
#endif
GL::Framebuffer _framebuffer;
GL::Buffer _indices, _vertices;
GL::Mesh _mesh, _meshInstanced, _meshDuplicated;
GL::Texture2D _textureWhite, _textureBlue;
};
using namespace Math::Literals;
constexpr Vector2i GridSubdivisions{64, 64};
constexpr Vector2i RenderSize{512, 512};
constexpr std::size_t WarmupIterations{100};
constexpr std::size_t BenchmarkIterations{1000};
constexpr std::size_t BenchmarkRepeats{4};
const struct {
const char* name;
FlatGL2D::Flags flags;
} FlatData[] {
{"", {}},
{"vertex color", FlatGL2D::Flag::VertexColor},
#ifndef MAGNUM_TARGET_GLES2
{"object ID", FlatGL2D::Flag::ObjectId},
#endif
{"textured", FlatGL2D::Flag::Textured},
{"textured + alpha mask", FlatGL2D::Flag::Textured|FlatGL2D::Flag::AlphaMask},
{"texture transformation", FlatGL2D::Flag::Textured|FlatGL2D::Flag::TextureTransformation},
{"instanced transformation", FlatGL2D::Flag::InstancedTransformation},
{"instanced transformation + color", FlatGL2D::Flag::InstancedTransformation|FlatGL2D::Flag::VertexColor},
#ifndef MAGNUM_TARGET_GLES2
{"instanced transformation + object ID", FlatGL2D::Flag::InstancedTransformation|FlatGL2D::Flag::InstancedObjectId},
#endif
{"instanced transformation + texture offset", FlatGL2D::Flag::Textured|FlatGL2D::Flag::InstancedTransformation|FlatGL2D::Flag::InstancedTextureOffset},
};
const struct {
const char* name;
PhongGL::Flags flags;
UnsignedInt lights;
} PhongData[] {
{"", {}, 1},
{"zero lights", {}, 0},
{"five lights", {}, 5},
{"vertex color", PhongGL::Flag::VertexColor, 1},
#ifndef MAGNUM_TARGET_GLES2
{"object ID", PhongGL::Flag::ObjectId, 1},
#endif
{"diffuse texture", PhongGL::Flag::DiffuseTexture, 1},
{"ADS textures", PhongGL::Flag::AmbientTexture|PhongGL::Flag::DiffuseTexture|PhongGL::Flag::SpecularTexture, 1},
{"ADS textures + alpha mask", PhongGL::Flag::AmbientTexture|PhongGL::Flag::DiffuseTexture|PhongGL::Flag::SpecularTexture|PhongGL::Flag::AlphaMask, 1},
{"ADS textures + transformation", PhongGL::Flag::AmbientTexture|PhongGL::Flag::DiffuseTexture|PhongGL::Flag::SpecularTexture|PhongGL::Flag::TextureTransformation, 1},
{"normal texture", PhongGL::Flag::NormalTexture, 1},
{"normal texture with separate bitangent", PhongGL::Flag::NormalTexture|PhongGL::Flag::Bitangent, 1},
{"instanced transformation", PhongGL::Flag::InstancedTransformation, 1},
{"instanced transformation + color", PhongGL::Flag::InstancedTransformation|PhongGL::Flag::VertexColor, 1},
#ifndef MAGNUM_TARGET_GLES2
{"instanced transformation + object ID", PhongGL::Flag::InstancedTransformation|PhongGL::Flag::InstancedObjectId, 1},
#endif
{"instanced transformation + ADS texture offset", PhongGL::Flag::AmbientTexture|PhongGL::Flag::DiffuseTexture|PhongGL::Flag::SpecularTexture|PhongGL::Flag::InstancedTransformation|PhongGL::Flag::InstancedTextureOffset, 1},
};
const struct {
const char* name;
VectorGL2D::Flags flags;
} VectorData[] {
{"", {}},
{"texture transformation", VectorGL2D::Flag::TextureTransformation}
};
const struct {
const char* name;
DistanceFieldVectorGL2D::Flags flags;
} DistanceFieldVectorData[] {
{"", {}},
{"texture transformation", DistanceFieldVectorGL2D::Flag::TextureTransformation}
};
const struct {
const char* name;
MeshVisualizerGL2D::Flags flags;
} MeshVisualizer2DData[] {
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
{"wireframe", MeshVisualizerGL2D::Flag::Wireframe},
#endif
{"wireframe w/o a GS", MeshVisualizerGL2D::Flag::Wireframe|MeshVisualizerGL2D::Flag::NoGeometryShader},
#ifndef MAGNUM_TARGET_GLES2
{"instanced object ID", MeshVisualizerGL2D::Flag::InstancedObjectId},
{"vertex ID", MeshVisualizerGL2D::Flag::VertexId},
#ifndef MAGNUM_TARGET_WEBGL
{"primitive ID", MeshVisualizerGL2D::Flag::PrimitiveId},
{"primitive ID from vertex ID", MeshVisualizerGL2D::Flag::PrimitiveIdFromVertexId},
#endif
#endif
};
const struct {
const char* name;
MeshVisualizerGL3D::Flags flags;
} MeshVisualizer3DData[] {
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
{"wireframe", MeshVisualizerGL3D::Flag::Wireframe},
#endif
{"wireframe w/o a GS", MeshVisualizerGL3D::Flag::Wireframe|MeshVisualizerGL3D::Flag::NoGeometryShader},
#ifndef MAGNUM_TARGET_GLES2
{"instanced object ID", MeshVisualizerGL3D::Flag::InstancedObjectId},
{"vertex ID", MeshVisualizerGL3D::Flag::VertexId},
#ifndef MAGNUM_TARGET_WEBGL
{"primitive ID", MeshVisualizerGL3D::Flag::PrimitiveId},
{"primitive ID from vertex ID", MeshVisualizerGL3D::Flag::PrimitiveIdFromVertexId},
#endif
#endif
};
ShadersGLBenchmark::ShadersGLBenchmark(): _framebuffer{{{}, RenderSize}} {
addInstancedBenchmarks({&ShadersGLBenchmark::flat<2>,
&ShadersGLBenchmark::flat<3>},
BenchmarkRepeats, Containers::arraySize(FlatData),
&ShadersGLBenchmark::renderSetup,
&ShadersGLBenchmark::renderTeardown,
BenchmarkType::GpuTime);
addInstancedBenchmarks({&ShadersGLBenchmark::phong},
BenchmarkRepeats, Containers::arraySize(PhongData),
&ShadersGLBenchmark::renderSetup,
&ShadersGLBenchmark::renderTeardown,
BenchmarkType::GpuTime);
addBenchmarks({&ShadersGLBenchmark::vertexColor<2>,
&ShadersGLBenchmark::vertexColor<3>},
BenchmarkRepeats,
&ShadersGLBenchmark::renderSetup,
&ShadersGLBenchmark::renderTeardown,
BenchmarkType::GpuTime);
addInstancedBenchmarks({&ShadersGLBenchmark::vector<2>,
&ShadersGLBenchmark::vector<3>},
BenchmarkRepeats, Containers::arraySize(VectorData),
&ShadersGLBenchmark::renderSetup,
&ShadersGLBenchmark::renderTeardown,
BenchmarkType::GpuTime);
addInstancedBenchmarks({&ShadersGLBenchmark::distanceFieldVector<2>,
&ShadersGLBenchmark::distanceFieldVector<3>},
BenchmarkRepeats, Containers::arraySize(DistanceFieldVectorData),
&ShadersGLBenchmark::renderSetup,
&ShadersGLBenchmark::renderTeardown,
BenchmarkType::GpuTime);
addInstancedBenchmarks({&ShadersGLBenchmark::meshVisualizer2D},
BenchmarkRepeats, Containers::arraySize(MeshVisualizer2DData),
&ShadersGLBenchmark::renderSetup,
&ShadersGLBenchmark::renderTeardown,
BenchmarkType::GpuTime);
addInstancedBenchmarks({&ShadersGLBenchmark::meshVisualizer3D},
BenchmarkRepeats, Containers::arraySize(MeshVisualizer3DData),
&ShadersGLBenchmark::renderSetup,
&ShadersGLBenchmark::renderTeardown,
BenchmarkType::GpuTime);
/* Set up the framebuffer */
_color.setStorage(
#if !defined(MAGNUM_TARGET_GLES2) || !defined(MAGNUM_TARGET_WEBGL)
GL::RenderbufferFormat::RGBA8,
#else
GL::RenderbufferFormat::RGBA4,
#endif
RenderSize);
_framebuffer.attachRenderbuffer(GL::Framebuffer::ColorAttachment{0}, _color)
.bind();
#ifndef MAGNUM_TARGET_GLES2
/* If we don't have EXT_gpu_shader4, we likely don't have integer
framebuffers either (Mesa's Zink), so skip setting up integer
attachments to avoid GL errors */
#ifndef MAGNUM_TARGET_GLES
if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::gpu_shader4>())
#endif
{
_objectId = GL::Renderbuffer{};
_objectId.setStorage(GL::RenderbufferFormat::R32UI, RenderSize);
_framebuffer.attachRenderbuffer(GL::Framebuffer::ColorAttachment{1}, _objectId)
.mapForDraw({
{FlatGL2D::ColorOutput, GL::Framebuffer::ColorAttachment{0}},
{FlatGL2D::ObjectIdOutput, GL::Framebuffer::ColorAttachment{1}}
});
}
#endif
/* Set up the mesh */
{
Trade::MeshData data = Primitives::grid3DSolid(GridSubdivisions,
Primitives::GridFlag::TextureCoordinates|
Primitives::GridFlag::Normals|
Primitives::GridFlag::Tangents);
Containers::Array<Color4> vertexColors{DirectInit, data.vertexCount(), 0xffffffff_rgbaf};
Containers::Array<Vector3> bitangents{DirectInit, data.vertexCount(), Vector3{0.0f, 1.0f, 0.0f}};
Trade::MeshData dataWithVertexColors = MeshTools::interleave(std::move(data), {
Trade::MeshAttributeData{Trade::MeshAttribute::Color, arrayView(vertexColors)},
Trade::MeshAttributeData{Trade::MeshAttribute::Bitangent, arrayView(bitangents)}
});
_indices.setData(dataWithVertexColors.indexData());
_vertices.setData(dataWithVertexColors.vertexData());
_mesh = MeshTools::compile(dataWithVertexColors, _indices, _vertices);
/* Instanced variant, if the divisor-related extension is supported */
#ifndef MAGNUM_TARGET_GLES
if(GL::Context::current().isExtensionSupported<GL::Extensions::ARB::instanced_arrays>())
#elif defined(MAGNUM_TARGET_GLES2)
#ifndef MAGNUM_TARGET_WEBGL
if(GL::Context::current().isExtensionSupported<GL::Extensions::ANGLE::instanced_arrays>() ||
GL::Context::current().isExtensionSupported<GL::Extensions::EXT::instanced_arrays>() ||
GL::Context::current().isExtensionSupported<GL::Extensions::NV::instanced_arrays>())
#else
if(GL::Context::current().isExtensionSupported<GL::Extensions::ANGLE::instanced_arrays>())
#endif
#endif
{
_meshInstanced = MeshTools::compile(dataWithVertexColors, _indices, _vertices);
struct {
/* Given the way the matrix attribute is specified (column by
column), it should work for 2D as well */
Matrix4 transformation{Math::IdentityInit};
Matrix3x3 normalMatrix{Math::IdentityInit};
Vector2 textureOffset{0.0f, 0.0f};
Color4 color{0xffffffff_rgbaf};
UnsignedInt objectId{0};
} instanceData[1];
_meshInstanced.addVertexBufferInstanced(GL::Buffer{instanceData}, 1, 0,
GenericGL3D::TransformationMatrix{},
GenericGL3D::NormalMatrix{},
GenericGL3D::TextureOffset{},
#ifndef MAGNUM_TARGET_GLES2
GenericGL3D::ObjectId{}
#else
sizeof(UnsignedInt)
#endif
);
/** @todo hmm, this doesn't really issue an instanced draw call, does
that matter? */
_meshInstanced.setInstanceCount(1);
}
/* Non-indexed variant for GS-less wireframe drawing */
_meshDuplicated = MeshTools::compile(MeshTools::duplicate(dataWithVertexColors));
}
/* Set up the textures */
{
const Color4ub white[1] { 0xffffffff_rgba };
_textureWhite.setMinificationFilter(GL::SamplerFilter::Linear)
.setMagnificationFilter(GL::SamplerFilter::Linear)
.setWrapping(GL::SamplerWrapping::ClampToEdge)
.setStorage(1,
#if !(defined(MAGNUM_TARGET_GLES2) && defined(MAGNUM_TARGET_WEBGL))
GL::TextureFormat::RGBA8
#else
GL::TextureFormat::RGBA
#endif
, {1, 1})
.setSubImage(0, {}, ImageView2D{PixelFormat::RGBA8Unorm, {1, 1}, white});
} {
const Color4ub blue[1] { 0x0000ffff_rgba };
_textureBlue.setMinificationFilter(GL::SamplerFilter::Linear)
.setMagnificationFilter(GL::SamplerFilter::Linear)
.setWrapping(GL::SamplerWrapping::ClampToEdge)
.setStorage(1,
#if !(defined(MAGNUM_TARGET_GLES2) && defined(MAGNUM_TARGET_WEBGL))
GL::TextureFormat::RGBA8
#else
GL::TextureFormat::RGBA
#endif
, {1, 1})
.setSubImage(0, {}, ImageView2D{PixelFormat::RGBA8Unorm, {1, 1}, blue});
}
/* Load the plugins directly from the build tree. Otherwise they're either
static and already loaded or not present in the build tree */
#ifdef ANYIMAGEIMPORTER_PLUGIN_FILENAME
CORRADE_INTERNAL_ASSERT_OUTPUT(_manager.load(ANYIMAGEIMPORTER_PLUGIN_FILENAME) & PluginManager::LoadState::Loaded);
#endif
#ifdef TGAIMPORTER_PLUGIN_FILENAME
CORRADE_INTERNAL_ASSERT_OUTPUT(_manager.load(TGAIMPORTER_PLUGIN_FILENAME) & PluginManager::LoadState::Loaded);
#endif
}
void ShadersGLBenchmark::renderSetup() {
#ifndef MAGNUM_TARGET_GLES2
#ifndef MAGNUM_TARGET_GLES
if(GL::Context::current().isExtensionSupported<GL::Extensions::EXT::gpu_shader4>())
#endif
{
_framebuffer
.clearColor(0, Color4{})
.clearColor(1, Vector4ui{});
}
#ifndef MAGNUM_TARGET_GLES
else
#endif
#endif
{
_framebuffer.clear(GL::FramebufferClear::Color);
}
}
void ShadersGLBenchmark::renderTeardown() {
/* Nothing to do here */
}
template<UnsignedInt dimensions> void ShadersGLBenchmark::flat() {
auto&& data = FlatData[testCaseInstanceId()];
setTestCaseTemplateName(Utility::formatString("{}", dimensions));
setTestCaseDescription(data.name);
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
FlatGL<dimensions> shader{data.flags};
if(data.flags >= FlatGL2D::Flag::AlphaMask)
shader.setAlphaMask(0.0f);
if(data.flags >= FlatGL2D::Flag::Textured)
shader.bindTexture(_textureWhite);
GL::Mesh* mesh;
/* InstancedTextureOffset is a superset of TextureTransformation, so
remove those bits first when deciding if instanced */
if((data.flags & ~FlatGL2D::Flag::TextureTransformation) & (FlatGL2D::Flag::InstancedTransformation|FlatGL2D::Flag::InstancedTextureOffset
#ifndef MAGNUM_TARGET_GLES2
|FlatGL2D::Flag::InstancedObjectId
#endif
)) {
#ifndef MAGNUM_TARGET_GLES
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ARB::instanced_arrays>())
CORRADE_SKIP(GL::Extensions::ARB::instanced_arrays::string() << "is not supported.");
#elif defined(MAGNUM_TARGET_GLES2)
#ifndef MAGNUM_TARGET_WEBGL
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ANGLE::instanced_arrays>() &&
!GL::Context::current().isExtensionSupported<GL::Extensions::EXT::instanced_arrays>() &&
!GL::Context::current().isExtensionSupported<GL::Extensions::NV::instanced_arrays>())
CORRADE_SKIP("Required extension is not available.");
#else
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ANGLE::instanced_arrays>())
CORRADE_SKIP(GL::Extensions::ANGLE::instanced_arrays::string() << "is not supported.");
#endif
#endif
mesh = &_meshInstanced;
} else {
mesh = &_mesh;
}
/* Warmup run */
/** @todo make this possible to do inside CORRADE_BENCHMARK() */
for(std::size_t i = 0; i != 100; ++i)
shader.draw(*mesh);
CORRADE_BENCHMARK(BenchmarkIterations)
shader.draw(*mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(_framebuffer.read(_framebuffer.viewport(), {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(SHADERS_TEST_DIR, "BenchmarkFiles/trivial.tga"),
DebugTools::CompareImageToFile{_manager});
}
void ShadersGLBenchmark::phong() {
auto&& data = PhongData[testCaseInstanceId()];
setTestCaseDescription(data.name);
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
PhongGL shader{data.flags, data.lights};
/* White ambient so we always have a white output */
shader.setAmbientColor(0xffffffff_rgbaf);
if(data.flags >= PhongGL::Flag::AlphaMask)
shader.setAlphaMask(0.0f);
if(data.flags >= PhongGL::Flag::AmbientTexture)
shader.bindAmbientTexture(_textureWhite);
if(data.flags >= PhongGL::Flag::DiffuseTexture)
shader.bindDiffuseTexture(_textureWhite);
if(data.flags >= PhongGL::Flag::SpecularTexture)
shader.bindSpecularTexture(_textureWhite);
if(data.flags >= PhongGL::Flag::NormalTexture)
shader.bindNormalTexture(_textureBlue);
GL::Mesh* mesh;
/* InstancedTextureOffset is a superset of TextureTransformation, so
remove those bits first when deciding if instanced */
if((data.flags & ~PhongGL::Flag::TextureTransformation) & (PhongGL::Flag::InstancedTransformation|PhongGL::Flag::InstancedTextureOffset
#ifndef MAGNUM_TARGET_GLES2
|PhongGL::Flag::InstancedObjectId
#endif
)) {
#ifndef MAGNUM_TARGET_GLES
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ARB::draw_instanced>())
CORRADE_SKIP(GL::Extensions::ARB::draw_instanced::string() << "is not supported.");
#elif defined(MAGNUM_TARGET_GLES2)
#ifndef MAGNUM_TARGET_WEBGL
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ANGLE::instanced_arrays>() &&
!GL::Context::current().isExtensionSupported<GL::Extensions::EXT::instanced_arrays>() &&
!GL::Context::current().isExtensionSupported<GL::Extensions::NV::instanced_arrays>())
CORRADE_SKIP("Required extension is not available.");
#else
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ANGLE::instanced_arrays>())
CORRADE_SKIP(GL::Extensions::ANGLE::instanced_arrays::string() << "is not supported.");
#endif
#endif
mesh = &_meshInstanced;
} else {
mesh = &_mesh;
}
/* Warmup run */
/** @todo make this possible to do inside CORRADE_BENCHMARK() */
for(std::size_t i = 0; i != WarmupIterations; ++i)
shader.draw(*mesh);
CORRADE_BENCHMARK(BenchmarkIterations)
shader.draw(*mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(_framebuffer.read(_framebuffer.viewport(), {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(SHADERS_TEST_DIR, "BenchmarkFiles/trivial.tga"),
DebugTools::CompareImageToFile{_manager});
}
template<UnsignedInt dimensions> void ShadersGLBenchmark::vertexColor() {
setTestCaseTemplateName(Utility::formatString("{}", dimensions));
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
VertexColorGL<dimensions> shader;
/* Warmup run */
/** @todo make this possible to do inside CORRADE_BENCHMARK() */
for(std::size_t i = 0; i != WarmupIterations; ++i)
shader.draw(_mesh);
CORRADE_BENCHMARK(BenchmarkIterations)
shader.draw(_mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(_framebuffer.read(_framebuffer.viewport(), {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(SHADERS_TEST_DIR, "BenchmarkFiles/trivial.tga"),
DebugTools::CompareImageToFile{_manager});
}
template<UnsignedInt dimensions> void ShadersGLBenchmark::vector() {
auto&& data = VectorData[testCaseInstanceId()];
setTestCaseTemplateName(Utility::formatString("{}", dimensions));
setTestCaseDescription(data.name);
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
VectorGL<dimensions> shader{data.flags};
shader.bindVectorTexture(_textureWhite);
/* Warmup run */
/** @todo make this possible to do inside CORRADE_BENCHMARK() */
for(std::size_t i = 0; i != WarmupIterations; ++i)
shader.draw(_mesh);
CORRADE_BENCHMARK(BenchmarkIterations)
shader.draw(_mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(_framebuffer.read(_framebuffer.viewport(), {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(SHADERS_TEST_DIR, "BenchmarkFiles/trivial.tga"),
DebugTools::CompareImageToFile{_manager});
}
template<UnsignedInt dimensions> void ShadersGLBenchmark::distanceFieldVector() {
auto&& data = DistanceFieldVectorData[testCaseInstanceId()];
setTestCaseTemplateName(Utility::formatString("{}", dimensions));
setTestCaseDescription(data.name);
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
DistanceFieldVectorGL<dimensions> shader{data.flags};
shader.bindVectorTexture(_textureWhite);
/* Warmup run */
/** @todo make this possible to do inside CORRADE_BENCHMARK() */
for(std::size_t i = 0; i != WarmupIterations; ++i)
shader.draw(_mesh);
CORRADE_BENCHMARK(BenchmarkIterations)
shader.draw(_mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(_framebuffer.read(_framebuffer.viewport(), {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(SHADERS_TEST_DIR, "BenchmarkFiles/trivial.tga"),
DebugTools::CompareImageToFile{_manager});
}
void ShadersGLBenchmark::meshVisualizer2D() {
auto&& data = MeshVisualizer2DData[testCaseInstanceId()];
setTestCaseDescription(data.name);
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
/* Checks verbatim copied from MeshVisualizerGLTest::construct2D() */
#ifndef MAGNUM_TARGET_GLES
if((data.flags & MeshVisualizerGL2D::Flag::InstancedObjectId) && !GL::Context::current().isExtensionSupported<GL::Extensions::EXT::gpu_shader4>())
CORRADE_SKIP(GL::Extensions::EXT::gpu_shader4::string() << "is not supported.");
#endif
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(data.flags >= MeshVisualizerGL2D::Flag::PrimitiveIdFromVertexId &&
#ifndef MAGNUM_TARGET_GLES
!GL::Context::current().isVersionSupported(GL::Version::GL300)
#else
!GL::Context::current().isVersionSupported(GL::Version::GLES300)
#endif
) CORRADE_SKIP("gl_VertexID not supported.");
#endif
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(data.flags & MeshVisualizerGL2D::Flag::PrimitiveId && !(data.flags >= MeshVisualizerGL2D::Flag::PrimitiveIdFromVertexId) &&
#ifndef MAGNUM_TARGET_GLES
!GL::Context::current().isVersionSupported(GL::Version::GL320)
#else
!GL::Context::current().isVersionSupported(GL::Version::GLES320)
#endif
) CORRADE_SKIP("gl_PrimitiveID not supported.");
#endif
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if((data.flags & MeshVisualizerGL2D::Flag::Wireframe) && !(data.flags & MeshVisualizerGL2D::Flag::NoGeometryShader)) {
#ifndef MAGNUM_TARGET_GLES
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ARB::geometry_shader4>())
CORRADE_SKIP(GL::Extensions::ARB::geometry_shader4::string() << "is not supported.");
#else
if(!GL::Context::current().isExtensionSupported<GL::Extensions::EXT::geometry_shader>())
CORRADE_SKIP(GL::Extensions::EXT::geometry_shader::string() << "is not supported.");
#endif
#ifdef MAGNUM_TARGET_GLES
if(GL::Context::current().isExtensionSupported<GL::Extensions::NV::shader_noperspective_interpolation>())
CORRADE_INFO("Using" << GL::Extensions::NV::shader_noperspective_interpolation::string());
#endif
}
#endif
MeshVisualizerGL2D shader{data.flags};
shader.setViewportSize(Vector2{RenderSize});
if(data.flags >= MeshVisualizerGL2D::Flag::Wireframe)
shader.setWireframeColor(0xffffffff_rgbaf);
#ifndef MAGNUM_TARGET_GLES2
if(data.flags & (MeshVisualizerGL2D::Flag::InstancedObjectId|MeshVisualizerGL2D::Flag::VertexId|MeshVisualizerGL2D::Flag::PrimitiveIdFromVertexId
#ifndef MAGNUM_TARGET_WEBGL
|MeshVisualizerGL2D::Flag::PrimitiveId
#endif
))
shader.bindColorMapTexture(_textureWhite);
#endif
GL::Mesh* mesh;
if(data.flags >= MeshVisualizerGL2D::Flag::NoGeometryShader) {
mesh = &_meshDuplicated;
}
#ifndef MAGNUM_TARGET_GLES2
else if(data.flags & MeshVisualizerGL2D::Flag::InstancedObjectId) {
#ifndef MAGNUM_TARGET_GLES
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ARB::draw_instanced>())
CORRADE_SKIP(GL::Extensions::ARB::draw_instanced::string() << "is not supported.");
#endif
mesh = &_meshInstanced;
}
#endif
else {
mesh = &_mesh;
}
/* Warmup run */
/** @todo make this possible to do inside CORRADE_BENCHMARK() */
for(std::size_t i = 0; i != WarmupIterations; ++i)
shader.draw(*mesh);
CORRADE_BENCHMARK(BenchmarkIterations)
shader.draw(*mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(_framebuffer.read(_framebuffer.viewport(), {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(SHADERS_TEST_DIR, "BenchmarkFiles/trivial.tga"),
DebugTools::CompareImageToFile{_manager});
}
void ShadersGLBenchmark::meshVisualizer3D() {
auto&& data = MeshVisualizer3DData[testCaseInstanceId()];
setTestCaseDescription(data.name);
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
/* Checks verbatim copied from MeshVisualizerGLTest:.construct3D() */
#ifndef MAGNUM_TARGET_GLES
if((data.flags & MeshVisualizerGL3D::Flag::InstancedObjectId) && !GL::Context::current().isExtensionSupported<GL::Extensions::EXT::gpu_shader4>())
CORRADE_SKIP(GL::Extensions::EXT::gpu_shader4::string() << "is not supported.");
#endif
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(data.flags >= MeshVisualizerGL3D::Flag::PrimitiveIdFromVertexId &&
#ifndef MAGNUM_TARGET_GLES
!GL::Context::current().isVersionSupported(GL::Version::GL300)
#else
!GL::Context::current().isVersionSupported(GL::Version::GLES300)
#endif
) CORRADE_SKIP("gl_VertexID not supported.");
#endif
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(data.flags & MeshVisualizerGL3D::Flag::PrimitiveId && !(data.flags >= MeshVisualizerGL3D::Flag::PrimitiveIdFromVertexId) &&
#ifndef MAGNUM_TARGET_GLES
!GL::Context::current().isVersionSupported(GL::Version::GL320)
#else
!GL::Context::current().isVersionSupported(GL::Version::GLES320)
#endif
) CORRADE_SKIP("gl_PrimitiveID not supported.");
#endif
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(((data.flags & MeshVisualizerGL3D::Flag::Wireframe) && !(data.flags & MeshVisualizerGL3D::Flag::NoGeometryShader)) || (data.flags & (MeshVisualizerGL3D::Flag::TangentDirection|MeshVisualizerGL3D::Flag::BitangentDirection|MeshVisualizerGL3D::Flag::BitangentFromTangentDirection|MeshVisualizerGL3D::Flag::NormalDirection))) {
#ifndef MAGNUM_TARGET_GLES
if(!GL::Context::current().isExtensionSupported<GL::Extensions::ARB::geometry_shader4>())
CORRADE_SKIP(GL::Extensions::ARB::geometry_shader4::string() << "is not supported.");
#else
if(!GL::Context::current().isExtensionSupported<GL::Extensions::EXT::geometry_shader>())
CORRADE_SKIP(GL::Extensions::EXT::geometry_shader::string() << "is not supported.");
#endif
#ifdef MAGNUM_TARGET_GLES
if(GL::Context::current().isExtensionSupported<GL::Extensions::NV::shader_noperspective_interpolation>())
CORRADE_INFO("Using" << GL::Extensions::NV::shader_noperspective_interpolation::string());
#endif
}
#endif
MeshVisualizerGL3D shader{data.flags};
shader.setViewportSize(Vector2{RenderSize});
if(data.flags >= MeshVisualizerGL3D::Flag::Wireframe)
shader.setWireframeColor(0xffffffff_rgbaf);
#ifndef MAGNUM_TARGET_GLES2
if(data.flags & (MeshVisualizerGL3D::Flag::InstancedObjectId|MeshVisualizerGL3D::Flag::VertexId|MeshVisualizerGL3D::Flag::PrimitiveIdFromVertexId
#ifndef MAGNUM_TARGET_WEBGL
|MeshVisualizerGL3D::Flag::PrimitiveId
#endif
))
shader.bindColorMapTexture(_textureWhite);
#endif
GL::Mesh* mesh;
if(data.flags >= MeshVisualizerGL3D::Flag::NoGeometryShader)
mesh = &_meshDuplicated;
#ifndef MAGNUM_TARGET_GLES2
else if(data.flags & MeshVisualizerGL3D::Flag::InstancedObjectId)
mesh = &_meshInstanced;
#endif
else
mesh = &_mesh;
/* Warmup run */
/** @todo make this possible to do inside CORRADE_BENCHMARK() */
for(std::size_t i = 0; i != WarmupIterations; ++i)
shader.draw(*mesh);
CORRADE_BENCHMARK(BenchmarkIterations)
shader.draw(*mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(_framebuffer.read(_framebuffer.viewport(), {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(SHADERS_TEST_DIR, "BenchmarkFiles/trivial.tga"),
DebugTools::CompareImageToFile{_manager});
}
}}}}
CORRADE_TEST_MAIN(Magnum::Shaders::Test::ShadersGLBenchmark)