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magnum/src/Magnum/MeshTools/Test/CompileGLTest.cpp

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/*
This file is part of Magnum.
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Vladimír Vondruš <mosra@centrum.cz>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#include <sstream>
#include <Corrade/Containers/EnumSet.h>
#include <Corrade/Containers/GrowableArray.h>
#include <Corrade/PluginManager/Manager.h>
#include <Corrade/Utility/Directory.h>
#include <Corrade/Utility/DebugStl.h>
#include "Magnum/Image.h"
#include "Magnum/ImageView.h"
#include "Magnum/Mesh.h"
#include "Magnum/PixelFormat.h"
#include "Magnum/DebugTools/CompareImage.h"
#include "Magnum/GL/Mesh.h"
#include "Magnum/GL/OpenGLTester.h"
#include "Magnum/GL/Framebuffer.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/Shaders/Flat.h"
#include "Magnum/Shaders/Phong.h"
#include "Magnum/Shaders/VertexColor.h"
#include "Magnum/Trade/AbstractImporter.h"
#include "Magnum/Trade/MeshData.h"
#ifdef MAGNUM_BUILD_DEPRECATED
#define _MAGNUM_NO_DEPRECATED_MESHDATA /* So it doesn't yell here */
#include "Magnum/Trade/MeshData2D.h"
#include "Magnum/Trade/MeshData3D.h"
#endif
#include "configure.h"
namespace Magnum { namespace MeshTools { namespace Test { namespace {
enum class Flag {
NonIndexed = 1 << 0,
Normals = 1 << 1,
GeneratedFlatNormals = 1 << 2,
GeneratedSmoothNormals = 1 << 3,
TextureCoordinates2D = 1 << 4,
Colors = 1 << 5
};
typedef Containers::EnumSet<Flag> Flags;
#ifdef CORRADE_TARGET_CLANG
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
#endif
CORRADE_ENUMSET_OPERATORS(Flags)
#ifdef CORRADE_TARGET_CLANG
#pragma clang diagnostic pop
#endif
struct CompileGLTest: GL::OpenGLTester {
public:
explicit CompileGLTest();
/** @todo remove the template once MeshDataXD is gone */
template<class T> void twoDimensions();
template<class T> void threeDimensions();
void packedAttributes();
void customAttribute();
void implementationSpecificAttributeFormat();
void generateNormalsNoPosition();
void generateNormals2DPosition();
void generateNormalsNoFloats();
void externalBuffers();
void externalBuffersInvalid();
private:
PluginManager::Manager<Trade::AbstractImporter> _manager{"nonexistent"};
Shaders::Flat2D _flat2D;
Shaders::Flat2D _flatTextured2D{Shaders::Flat2D::Flag::Textured};
Shaders::Flat3D _flat3D;
Shaders::Flat3D _flatTextured3D{Shaders::Flat3D::Flag::Textured};
Shaders::VertexColor2D _color2D;
Shaders::VertexColor3D _color3D;
Shaders::Phong _phong;
GL::Renderbuffer _color;
GL::Framebuffer _framebuffer{{{}, {32, 32}}};
GL::Texture2D _texture;
};
constexpr struct {
const char* name;
Flags flags;
} Data2D[] {
{"positions", {}},
{"positions, nonindexed", Flag::NonIndexed},
{"positions + colors", Flag::Colors},
{"positions + texture coordinates", Flag::TextureCoordinates2D},
{"positions + texture coordinates + colors", Flag::TextureCoordinates2D|Flag::Colors}
};
constexpr struct {
const char* name;
Flags flags;
} Data3D[] {
{"positions", {}},
{"positions, nonindexed", Flag::NonIndexed},
{"positions + colors", Flag::Colors},
{"positions + texcoords", Flag::TextureCoordinates2D},
{"positions + texcoords + colors", Flag::TextureCoordinates2D|Flag::Colors},
{"positions + normals", Flag::Normals},
{"positions + normals + colors", Flag::Normals|Flag::Colors},
{"positions + normals + texcoords", Flag::Normals|Flag::TextureCoordinates2D},
{"positions + normals + texcoords + colors", Flag::Normals|Flag::TextureCoordinates2D|Flag::Colors},
{"positions + gen flat normals", Flag::GeneratedFlatNormals},
{"positions + gen both smooth and flat normals", Flag::GeneratedSmoothNormals|Flag::GeneratedFlatNormals},
{"positions + normals, gen flat normals", Flag::Normals|Flag::GeneratedFlatNormals},
{"positions + gen flat normals + colors", Flag::GeneratedFlatNormals|Flag::Colors},
{"positions + gen flat normals + texcoords", Flag::GeneratedFlatNormals|Flag::TextureCoordinates2D},
{"positions + gen flat normals + texcoords + colors", Flag::NonIndexed|Flag::GeneratedFlatNormals|Flag::TextureCoordinates2D|Flag::Colors},
{"positions, nonindexed + gen flat normals", Flag::NonIndexed|Flag::GeneratedFlatNormals},
{"positions, nonindexed + gen flat normals + colors", Flag::NonIndexed|Flag::GeneratedFlatNormals|Flag::Colors},
{"positions, nonindexed + gen flat normals + texcoords", Flag::NonIndexed|Flag::GeneratedFlatNormals|Flag::TextureCoordinates2D},
{"positions, nonindexed + gen flat normals + texcoords + colors", Flag::NonIndexed|Flag::GeneratedFlatNormals|Flag::TextureCoordinates2D|Flag::Colors},
{"positions, gen smooth normals", Flag::GeneratedSmoothNormals},
{"positions, gen smooth normals + colors", Flag::GeneratedSmoothNormals|Flag::Colors},
{"positions, gen smooth normals + texcoords", Flag::GeneratedSmoothNormals|Flag::TextureCoordinates2D},
{"positions, gen smooth normals + texcoords + colors", Flag::GeneratedSmoothNormals|Flag::TextureCoordinates2D|Flag::Colors},
{"positions, nonindexed + gen smooth normals", Flag::NonIndexed|Flag::GeneratedSmoothNormals},
};
constexpr struct {
const char* name;
bool indexed, moveIndices, moveVertices;
} DataExternal[] {
{"indexed", true, false, false},
{"", false, false, false},
{"move indices", true, true, false},
{"move vertices", false, false, true},
{"move both", true, true, true}
};
constexpr struct {
const char* name;
CompileFlags flags;
} CustomAttributeWarningData[] {
{"", {}},
{"no warning", CompileFlag::NoWarnOnCustomAttributes}
};
using namespace Math::Literals;
constexpr Color4ub ImageData[] {
0xff000000_rgba, 0x80000000_rgba, 0x00008000_rgba, 0x0000ff00_rgba,
0x80000000_rgba, 0xffffffff_rgba, 0xffffffff_rgba, 0x00008000_rgba,
0x00800000_rgba, 0xffffffff_rgba, 0xffffffff_rgba, 0x00008000_rgba,
0x00ff0000_rgba, 0x00800000_rgba, 0x00000080_rgba, 0x000000ff_rgba
};
CompileGLTest::CompileGLTest() {
addInstancedTests<CompileGLTest>({
&CompileGLTest::twoDimensions<Trade::MeshData>}, Containers::arraySize(Data2D));
#ifdef MAGNUM_BUILD_DEPRECATED
CORRADE_IGNORE_DEPRECATED_PUSH
addInstancedTests<CompileGLTest>({
&CompileGLTest::twoDimensions<Trade::MeshData2D>},
Containers::arraySize(Data2D));
CORRADE_IGNORE_DEPRECATED_POP
#endif
addInstancedTests<CompileGLTest>({
&CompileGLTest::threeDimensions<Trade::MeshData>},
Containers::arraySize(Data3D));
#ifdef MAGNUM_BUILD_DEPRECATED
CORRADE_IGNORE_DEPRECATED_PUSH
addInstancedTests<CompileGLTest>({
&CompileGLTest::threeDimensions<Trade::MeshData3D>},
Containers::arraySize(Data3D));
CORRADE_IGNORE_DEPRECATED_POP
#endif
addTests({&CompileGLTest::packedAttributes});
addInstancedTests({&CompileGLTest::customAttribute,
&CompileGLTest::implementationSpecificAttributeFormat},
Containers::arraySize(CustomAttributeWarningData));
addTests({&CompileGLTest::generateNormalsNoPosition,
&CompileGLTest::generateNormals2DPosition,
&CompileGLTest::generateNormalsNoFloats});
addInstancedTests({&CompileGLTest::externalBuffers},
Containers::arraySize(DataExternal));
addTests({&CompileGLTest::externalBuffersInvalid});
/* 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(_manager.load(ANYIMAGEIMPORTER_PLUGIN_FILENAME) & PluginManager::LoadState::Loaded);
#endif
#ifdef TGAIMPORTER_PLUGIN_FILENAME
CORRADE_INTERNAL_ASSERT(_manager.load(TGAIMPORTER_PLUGIN_FILENAME) & PluginManager::LoadState::Loaded);
#endif
/* Set up the rendering */
_color.setStorage(
#if !defined(MAGNUM_TARGET_GLES2) || !defined(MAGNUM_TARGET_WEBGL)
GL::RenderbufferFormat::RGBA8,
#else
GL::RenderbufferFormat::RGBA4,
#endif
{32, 32});
_framebuffer.attachRenderbuffer(GL::Framebuffer::ColorAttachment{0}, _color)
.bind();
_texture
.setMinificationFilter(SamplerFilter::Linear)
.setMagnificationFilter(SamplerFilter::Linear)
.setWrapping(SamplerWrapping::ClampToEdge)
.setStorage(1,
#if !defined(MAGNUM_TARGET_GLES2) || !defined(MAGNUM_TARGET_WEBGL)
GL::TextureFormat::RGBA8,
#else
GL::TextureFormat::RGBA,
#endif
{4, 4})
.setSubImage(0, {}, ImageView2D{PixelFormat::RGBA8Unorm, {4, 4}, ImageData});
}
template<class T> struct MeshTypeName;
template<> struct MeshTypeName<Trade::MeshData> {
static const char* name() { return "Trade::MeshData"; }
};
#ifdef MAGNUM_BUILD_DEPRECATED
CORRADE_IGNORE_DEPRECATED_PUSH
template<> struct MeshTypeName<Trade::MeshData2D> {
static const char* name() { return "Trade::MeshData2D"; }
};
template<> struct MeshTypeName<Trade::MeshData3D> {
static const char* name() { return "Trade::MeshData3D"; }
};
CORRADE_IGNORE_DEPRECATED_POP
#endif
template<class T> void CompileGLTest::twoDimensions() {
setTestCaseTemplateName(MeshTypeName<T>::name());
auto&& data = Data2D[testCaseInstanceId()];
setTestCaseDescription(data.name);
/*
6-----7-----8
| /| /|
| / | / |
|/ |/ |
3-----4-----5
| /| /|
| / | / |
|/ |/ |
0-----1-----2
*/
const struct Vertex {
Vector2 position;
Vector2 textureCoordinates;
Color3 color;
} vertexData[]{
{{-0.75f, -0.75f}, {0.0f, 0.0f}, 0x00ff00_rgbf},
{{ 0.00f, -0.75f}, {0.5f, 0.0f}, 0x808000_rgbf},
{{ 0.75f, -0.75f}, {1.0f, 0.0f}, 0xff0000_rgbf},
{{-0.75f, 0.00f}, {0.0f, 0.5f}, 0x00ff80_rgbf},
{{ 0.00f, 0.00f}, {0.5f, 0.5f}, 0x808080_rgbf},
{{ 0.75f, 0.00f}, {1.0f, 0.5f}, 0xff0080_rgbf},
{{-0.75f, 0.75f}, {0.0f, 1.0f}, 0x00ffff_rgbf},
{{ 0.0f, 0.75f}, {0.5f, 1.0f}, 0x8080ff_rgbf},
{{ 0.75f, 0.75f}, {1.0f, 1.0f}, 0xff00ff_rgbf}
};
Containers::Array<Trade::MeshAttributeData> attributeData;
arrayAppend(attributeData, Trade::MeshAttributeData{
Trade::MeshAttribute::Position,
Containers::stridedArrayView(vertexData, &vertexData[0].position,
Containers::arraySize(vertexData), sizeof(Vertex))});
if(data.flags & Flag::TextureCoordinates2D)
arrayAppend(attributeData, Trade::MeshAttributeData{
Trade::MeshAttribute::TextureCoordinates,
Containers::stridedArrayView(vertexData, &vertexData[0].textureCoordinates,
Containers::arraySize(vertexData), sizeof(Vertex))});
if(data.flags & Flag::Colors)
arrayAppend(attributeData, Trade::MeshAttributeData{
Trade::MeshAttribute::Color,
Containers::stridedArrayView(vertexData, &vertexData[0].color,
Containers::arraySize(vertexData), sizeof(Vertex))});
const UnsignedInt indexData[]{
0, 1, 4, 0, 4, 3,
1, 2, 5, 1, 5, 4,
3, 4, 7, 3, 7, 6,
4, 5, 8, 4, 8, 7
};
Trade::MeshData meshData{MeshPrimitive::Triangles,
{}, indexData, Trade::MeshIndexData{indexData},
{}, vertexData, std::move(attributeData)};
/* Duplicate everything if data is non-indexed */
if(data.flags & Flag::NonIndexed) meshData = duplicate(meshData);
MAGNUM_VERIFY_NO_GL_ERROR();
#ifdef MAGNUM_BUILD_DEPRECATED
CORRADE_IGNORE_DEPRECATED_PUSH /** @todo remove once MeshDataXD is gone */
#endif
GL::Mesh mesh = compile(T{std::move(meshData)});
#ifdef MAGNUM_BUILD_DEPRECATED
CORRADE_IGNORE_DEPRECATED_POP
#endif
MAGNUM_VERIFY_NO_GL_ERROR();
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
/* Check with the flat shader, it should always work */
{
_framebuffer.clear(GL::FramebufferClear::Color);
_flat2D
.setColor(0xff3366_rgbf)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "flat2D.tga"),
(DebugTools::CompareImageToFile{_manager}));
}
/* Check with the colored shader, if we have colors */
if(data.flags & Flag::Colors) {
_framebuffer.clear(GL::FramebufferClear::Color);
_color2D.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "color2D.tga"),
(DebugTools::CompareImageToFile{_manager}));
}
/* Check with the textured shader, if we have texture coords */
if(data.flags & Flag::TextureCoordinates2D) {
_framebuffer.clear(GL::FramebufferClear::Color);
_flatTextured2D
.bindTexture(_texture)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "textured2D.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 0.75f, 0.0906f}));
}
}
template<class T> void CompileGLTest::threeDimensions() {
setTestCaseTemplateName(MeshTypeName<T>::name());
auto&& data = Data3D[testCaseInstanceId()];
setTestCaseDescription(data.name);
/*
6-----7-----8
| /| /|
| / | / |
|/ |/ |
3-----4-----5
| /| /|
| / | / |
|/ |/ |
0-----1-----2
*/
const struct Vertex {
Vector3 position;
Vector3 normal;
Vector2 textureCoordinates;
Color4 color;
} vertexData[]{
{{-0.75f, -0.75f, -0.35f}, Vector3{-0.5f, -0.5f, 1.0f}.normalized(),
{0.0f, 0.0f}, 0x00ff00_rgbf},
{{ 0.00f, -0.75f, -0.25f}, Vector3{ 0.0f, -0.5f, 1.0f}.normalized(),
{0.5f, 0.0f}, 0x808000_rgbf},
{{ 0.75f, -0.75f, -0.35f}, Vector3{ 0.5f, -0.5f, 1.0f}.normalized(),
{1.0f, 0.0f}, 0xff0000_rgbf},
{{-0.75f, 0.00f, -0.25f}, Vector3{-0.5f, 0.0f, 1.0f}.normalized(),
{0.0f, 0.5f}, 0x00ff80_rgbf},
{{ 0.00f, 0.00f, 0.00f}, Vector3{ 0.0f, 0.0f, 1.0f}.normalized(),
{0.5f, 0.5f}, 0x808080_rgbf},
{{ 0.75f, 0.00f, -0.25f}, Vector3{ 0.5f, 0.0f, 1.0f}.normalized(),
{1.0f, 0.5f}, 0xff0080_rgbf},
{{-0.75f, 0.75f, -0.35f}, Vector3{-0.5f, 0.5f, 1.0f}.normalized(),
{0.0f, 1.0f}, 0x00ffff_rgbf},
{{ 0.0f, 0.75f, -0.25f}, Vector3{ 0.0f, 0.5f, 1.0f}.normalized(),
{0.5f, 1.0f}, 0x8080ff_rgbf},
{{ 0.75f, 0.75f, -0.35f}, Vector3{ 0.5f, 0.5f, 1.0f}.normalized(),
{1.0f, 1.0f}, 0xff00ff_rgbf}
};
Containers::Array<Trade::MeshAttributeData> attributeData;
arrayAppend(attributeData, Trade::MeshAttributeData{
Trade::MeshAttribute::Position,
Containers::stridedArrayView(vertexData, &vertexData[0].position,
Containers::arraySize(vertexData), sizeof(Vertex))});
if(data.flags & Flag::Normals)
arrayAppend(attributeData, Trade::MeshAttributeData{
Trade::MeshAttribute::Normal,
Containers::stridedArrayView(vertexData, &vertexData[0].normal,
Containers::arraySize(vertexData), sizeof(Vertex))});
if(data.flags & Flag::TextureCoordinates2D)
arrayAppend(attributeData, Trade::MeshAttributeData{
Trade::MeshAttribute::TextureCoordinates,
Containers::stridedArrayView(vertexData, &vertexData[0].textureCoordinates,
Containers::arraySize(vertexData), sizeof(Vertex))});
if(data.flags & Flag::Colors)
arrayAppend(attributeData, Trade::MeshAttributeData{
Trade::MeshAttribute::Color,
Containers::stridedArrayView(vertexData, &vertexData[0].color,
Containers::arraySize(vertexData), sizeof(Vertex))});
const UnsignedByte indexData[]{
0, 1, 4, 0, 4, 3,
1, 2, 5, 1, 5, 4,
3, 4, 7, 3, 7, 6,
4, 5, 8, 4, 8, 7
};
Trade::MeshData meshData{MeshPrimitive::Triangles,
{}, indexData, Trade::MeshIndexData{indexData},
{}, vertexData, std::move(attributeData)};
/* Duplicate everything if data is non-indexed */
if(data.flags & Flag::NonIndexed) meshData = duplicate(meshData);
MAGNUM_VERIFY_NO_GL_ERROR();
CompileFlags flags;
if(data.flags & Flag::GeneratedFlatNormals)
flags |= CompileFlag::GenerateFlatNormals;
if(data.flags & Flag::GeneratedSmoothNormals)
flags |= CompileFlag::GenerateSmoothNormals;
#ifdef MAGNUM_BUILD_DEPRECATED
CORRADE_IGNORE_DEPRECATED_PUSH /** @todo remove once MeshDataXD is gone */
#endif
GL::Mesh mesh = compile(T{std::move(meshData)}, flags);
#ifdef MAGNUM_BUILD_DEPRECATED
CORRADE_IGNORE_DEPRECATED_POP
#endif
MAGNUM_VERIFY_NO_GL_ERROR();
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
Matrix4 projection = Matrix4::perspectiveProjection(45.0_degf, 1.0f, 0.1f, 10.0f);
Matrix4 transformation = Matrix4::translation(Vector3::zAxis(-2.0f));
/* Check with the flat shader, it should always work */
{
_framebuffer.clear(GL::FramebufferClear::Color);
_flat3D
.setTransformationProjectionMatrix(projection*transformation)
.setColor(0x6633ff_rgbf)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "flat3D.tga"),
(DebugTools::CompareImageToFile{_manager}));
}
/* Check with the phong shader, if we have normals (but not flat generated) */
if(data.flags & Flag::Normals && !(data.flags & Flag::GeneratedFlatNormals)) {
_framebuffer.clear(GL::FramebufferClear::Color);
_phong
.setDiffuseColor(0x33ff66_rgbf)
.setTransformationMatrix(transformation)
.setNormalMatrix(transformation.normalMatrix())
.setProjectionMatrix(projection)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "phong.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 0.5f, 0.0113f}));
}
/* Check generated flat / smooth normals with the phong shader. If smooth
normals are requested but the mesh is not indexed, it should behave the
same as flat normals. */
if(data.flags & Flag::GeneratedFlatNormals || (data.flags & Flag::GeneratedSmoothNormals && data.flags & Flag::NonIndexed)) {
_framebuffer.clear(GL::FramebufferClear::Color);
_phong
.setDiffuseColor(0x33ff66_rgbf)
.setTransformationMatrix(transformation)
.setNormalMatrix(transformation.normalMatrix())
.setProjectionMatrix(projection)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "phong-flat.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 0.25f, 0.0079f}));
} else if(data.flags & Flag::GeneratedSmoothNormals) {
_framebuffer.clear(GL::FramebufferClear::Color);
_phong
.setDiffuseColor(0x33ff66_rgbf)
.setTransformationMatrix(transformation)
.setNormalMatrix(transformation.normalMatrix())
.setProjectionMatrix(projection)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "phong-smooth.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 0.25f, 0.0059f}));
}
/* Check with the colored shader, if we have colors */
if(data.flags & Flag::Colors) {
_framebuffer.clear(GL::FramebufferClear::Color);
_color3D
.setTransformationProjectionMatrix(projection*transformation)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "color3D.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 0.5f, 0.0162f}));
}
/* Check with the textured shader, if we have texture coords */
if(data.flags & Flag::TextureCoordinates2D) {
_framebuffer.clear(GL::FramebufferClear::Color);
_flatTextured3D
.setTransformationProjectionMatrix(projection*transformation)
.bindTexture(_texture)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "textured3D.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 1.0f, 0.0948f}));
}
}
void CompileGLTest::packedAttributes() {
/* Same as above, just packed */
const struct Vertex {
Vector3s position;
Vector3s normal;
Vector2us textureCoordinates;
Color4ub color;
} vertexData[]{
{Math::pack<Vector3s>(Vector3{-0.75f, -0.75f, -0.35f}),
Math::pack<Vector3s>(Vector3{-0.5f, -0.5f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{0.0f, 0.0f}), 0x00ff00_rgb},
{Math::pack<Vector3s>(Vector3{ 0.00f, -0.75f, -0.25f}),
Math::pack<Vector3s>(Vector3{ 0.0f, -0.5f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{0.5f, 0.0f}), 0x808000_rgb},
{Math::pack<Vector3s>(Vector3{ 0.75f, -0.75f, -0.35f}),
Math::pack<Vector3s>(Vector3{ 0.5f, -0.5f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{1.0f, 0.0f}), 0xff0000_rgb},
{Math::pack<Vector3s>(Vector3{-0.75f, 0.00f, -0.25f}),
Math::pack<Vector3s>(Vector3{-0.5f, 0.0f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{0.0f, 0.5f}), 0x00ff80_rgb},
{Math::pack<Vector3s>(Vector3{ 0.00f, 0.00f, 0.00f}),
Math::pack<Vector3s>(Vector3{ 0.0f, 0.0f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{0.5f, 0.5f}), 0x808080_rgb},
{Math::pack<Vector3s>(Vector3{ 0.75f, 0.00f, -0.25f}),
Math::pack<Vector3s>(Vector3{ 0.5f, 0.0f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{1.0f, 0.5f}), 0xff0080_rgb},
{Math::pack<Vector3s>(Vector3{-0.75f, 0.75f, -0.35f}),
Math::pack<Vector3s>(Vector3{-0.5f, 0.5f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{0.0f, 1.0f}), 0x00ffff_rgb},
{Math::pack<Vector3s>(Vector3{ 0.0f, 0.75f, -0.25f}),
Math::pack<Vector3s>(Vector3{ 0.0f, 0.5f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{0.5f, 1.0f}), 0x8080ff_rgb},
{Math::pack<Vector3s>(Vector3{ 0.75f, 0.75f, -0.35f}),
Math::pack<Vector3s>(Vector3{ 0.5f, 0.5f, 1.0f}.normalized()),
Math::pack<Vector2us>(Vector2{1.0f, 1.0f}), 0xff00ff_rgb}
};
static_assert(sizeof(Vertex) % 4 == 0,
"the vertex is not 4-byte aligned and that's bad");
const UnsignedByte indexData[]{
0, 1, 4, 0, 4, 3,
1, 2, 5, 1, 5, 4,
3, 4, 7, 3, 7, 6,
4, 5, 8, 4, 8, 7
};
Trade::MeshData meshData{MeshPrimitive::Triangles, {}, indexData,
Trade::MeshIndexData{indexData}, {}, vertexData, {
Trade::MeshAttributeData{
Trade::MeshAttribute::Position,
VertexFormat::Vector3sNormalized,
Containers::stridedArrayView(vertexData, &vertexData[0].position,
Containers::arraySize(vertexData), sizeof(Vertex))},
Trade::MeshAttributeData{
Trade::MeshAttribute::Normal,
VertexFormat::Vector3sNormalized,
Containers::stridedArrayView(vertexData, &vertexData[0].normal,
Containers::arraySize(vertexData), sizeof(Vertex))},
Trade::MeshAttributeData{
Trade::MeshAttribute::TextureCoordinates,
VertexFormat::Vector2usNormalized,
Containers::stridedArrayView(vertexData, &vertexData[0].textureCoordinates,
Containers::arraySize(vertexData), sizeof(Vertex))},
Trade::MeshAttributeData{
Trade::MeshAttribute::Color,
/* It should figure out the type itself here */
Containers::stridedArrayView(vertexData, &vertexData[0].color,
Containers::arraySize(vertexData), sizeof(Vertex))}
}};
GL::Mesh mesh = compile(meshData);
MAGNUM_VERIFY_NO_GL_ERROR();
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
Matrix4 projection = Matrix4::perspectiveProjection(45.0_degf, 1.0f, 0.1f, 10.0f);
Matrix4 transformation = Matrix4::translation(Vector3::zAxis(-2.0f));
/* In all checks below, the rendering should be practically 1:1 as above
with full-blown attribute types */
/* Check positions and normals */
_framebuffer.clear(GL::FramebufferClear::Color);
_phong
.setDiffuseColor(0x33ff66_rgbf)
.setTransformationMatrix(transformation)
.setNormalMatrix(transformation.normalMatrix())
.setProjectionMatrix(projection)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "phong.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 0.5f, 0.0113f}));
/* Check colors */
_framebuffer.clear(GL::FramebufferClear::Color);
_color3D
.setTransformationProjectionMatrix(projection*transformation)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "color3D.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 0.5f, 0.0162f}));
/* Check texture coordinates */
_framebuffer.clear(GL::FramebufferClear::Color);
_flatTextured3D
.setTransformationProjectionMatrix(projection*transformation)
.bindTexture(_texture)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "textured3D.tga"),
/* SwiftShader has some minor off-by-one precision differences */
(DebugTools::CompareImageToFile{_manager, 1.0f, 0.0948f}));
}
void CompileGLTest::customAttribute() {
auto&& instanceData = CustomAttributeWarningData[testCaseInstanceId()];
setTestCaseDescription(instanceData.name);
Trade::MeshData data{MeshPrimitive::Triangles,
nullptr, {Trade::MeshAttributeData{Trade::meshAttributeCustom(115),
VertexFormat::Short, nullptr}}};
std::ostringstream out;
Warning redirectError{&out};
if(instanceData.flags)
MeshTools::compile(data, instanceData.flags);
else
MeshTools::compile(data);
CORRADE_COMPARE(out.str(), instanceData.flags ? "" :
"MeshTools::compile(): ignoring unknown attribute Trade::MeshAttribute::Custom(115)\n");
}
void CompileGLTest::implementationSpecificAttributeFormat() {
auto&& instanceData = CustomAttributeWarningData[testCaseInstanceId()];
setTestCaseDescription(instanceData.name);
Trade::MeshData data{MeshPrimitive::Triangles,
nullptr, {Trade::MeshAttributeData{Trade::MeshAttribute::Position,
vertexFormatWrap(0xdead), nullptr}}};
std::ostringstream out;
Warning redirectError{&out};
if(instanceData.flags)
MeshTools::compile(data, instanceData.flags);
else
MeshTools::compile(data);
CORRADE_COMPARE(out.str(), instanceData.flags ? "" :
"MeshTools::compile(): ignoring attribute Trade::MeshAttribute::Position with an implementation-specific format 0xdead\n");
}
void CompileGLTest::generateNormalsNoPosition() {
Trade::MeshData data{MeshPrimitive::Triangles, 1};
std::ostringstream out;
Error redirectError{&out};
MeshTools::compile(data, CompileFlag::GenerateFlatNormals);
CORRADE_COMPARE(out.str(),
"MeshTools::compile(): the mesh has no positions, can't generate normals\n");
}
void CompileGLTest::generateNormals2DPosition() {
Trade::MeshData data{MeshPrimitive::Triangles,
nullptr, {Trade::MeshAttributeData{Trade::MeshAttribute::Position,
VertexFormat::Vector2, nullptr}}};
std::ostringstream out;
Error redirectError{&out};
MeshTools::compile(data, CompileFlag::GenerateFlatNormals);
CORRADE_COMPARE(out.str(),
"MeshTools::compile(): can't generate normals for VertexFormat::Vector2 positions\n");
}
void CompileGLTest::generateNormalsNoFloats() {
Trade::MeshData data{MeshPrimitive::Triangles,
nullptr, {
Trade::MeshAttributeData{Trade::MeshAttribute::Position,
VertexFormat::Vector3, nullptr},
Trade::MeshAttributeData{Trade::MeshAttribute::Normal,
VertexFormat::Vector3h, nullptr},
}};
std::ostringstream out;
Error redirectError{&out};
MeshTools::compile(data, CompileFlag::GenerateFlatNormals);
CORRADE_COMPARE(out.str(),
"MeshTools::compile(): can't generate normals into VertexFormat::Vector3h\n");
}
void CompileGLTest::externalBuffers() {
auto&& data = DataExternal[testCaseInstanceId()];
setTestCaseDescription(data.name);
/*
6-----7-----8
| /| /|
| / | / |
|/ |/ |
3-----4-----5
| /| /|
| / | / |
|/ |/ |
0-----1-----2
*/
Vector2 positions[] {
{-0.75f, -0.75f},
{ 0.00f, -0.75f},
{ 0.75f, -0.75f},
{-0.75f, 0.00f},
{ 0.00f, 0.00f},
{ 0.75f, 0.00f},
{-0.75f, 0.75f},
{ 0.0f, 0.75f},
{ 0.75f, 0.75f}
};
const UnsignedShort indexData[]{
0, 1, 4, 0, 4, 3,
1, 2, 5, 1, 5, 4,
3, 4, 7, 3, 7, 6,
4, 5, 8, 4, 8, 7
};
Trade::MeshData meshData{MeshPrimitive::Triangles,
{}, indexData, Trade::MeshIndexData{indexData},
{}, positions, {Trade::MeshAttributeData{Trade::MeshAttribute::Position, Containers::arrayView(positions)}}};
/* Duplicate everything if data is non-indexed */
if(!data.indexed) meshData = duplicate(meshData);
GL::Buffer indices{NoCreate};
if(meshData.isIndexed()) {
indices = GL::Buffer{GL::Buffer::TargetHint::ElementArray};
indices.setData(meshData.indexData());
}
GL::Buffer vertices{GL::Buffer::TargetHint::Array};
vertices.setData(meshData.vertexData());
MAGNUM_VERIFY_NO_GL_ERROR();
GL::Mesh mesh{NoCreate};
if(data.moveIndices && data.moveVertices)
mesh = compile(meshData, std::move(indices), std::move(vertices));
else if(data.moveIndices && !data.moveVertices)
mesh = compile(meshData, std::move(indices), vertices);
else if(!data.moveIndices && data.moveVertices)
mesh = compile(meshData, indices, std::move(vertices));
else
mesh = compile(meshData, indices, vertices);
MAGNUM_VERIFY_NO_GL_ERROR();
if(!(_manager.loadState("AnyImageImporter") & PluginManager::LoadState::Loaded) ||
!(_manager.loadState("TgaImporter") & PluginManager::LoadState::Loaded))
CORRADE_SKIP("AnyImageImporter / TgaImporter plugins not found.");
_framebuffer.clear(GL::FramebufferClear::Color);
_flat2D
.setColor(0xff3366_rgbf)
.draw(mesh);
MAGNUM_VERIFY_NO_GL_ERROR();
CORRADE_COMPARE_WITH(
_framebuffer.read({{}, {32, 32}}, {PixelFormat::RGBA8Unorm}),
Utility::Directory::join(COMPILEGLTEST_TEST_DIR, "flat2D.tga"),
(DebugTools::CompareImageToFile{_manager}));
}
void CompileGLTest::externalBuffersInvalid() {
Trade::MeshData data{MeshPrimitive::Triangles, 5};
Trade::MeshData indexedData{MeshPrimitive::Triangles,
nullptr, Trade::MeshIndexData{MeshIndexType::UnsignedInt, nullptr},
{}};
std::ostringstream out;
Error redirectError{&out};
compile(data, GL::Buffer{NoCreate}, GL::Buffer{}); /* this is okay */
compile(data, GL::Buffer{NoCreate}, GL::Buffer{NoCreate});
compile(indexedData, GL::Buffer{NoCreate}, GL::Buffer{});
CORRADE_COMPARE(out.str(),
"MeshTools::compile(): invalid external buffer(s)\n"
"MeshTools::compile(): invalid external buffer(s)\n");
}
}}}}
CORRADE_TEST_MAIN(Magnum::MeshTools::Test::CompileGLTest)