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magnum/src/Magnum/Test/MeshGLTest.cpp

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/*
This file is part of Magnum.
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
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 "Magnum/AbstractShaderProgram.h"
#include "Magnum/Buffer.h"
#include "Magnum/Context.h"
#include "Magnum/Extensions.h"
#include "Magnum/Framebuffer.h"
#include "Magnum/Image.h"
#include "Magnum/Mesh.h"
#include "Magnum/MeshView.h"
#include "Magnum/OpenGLTester.h"
#include "Magnum/PixelFormat.h"
#include "Magnum/Renderbuffer.h"
#include "Magnum/RenderbufferFormat.h"
#include "Magnum/Shader.h"
#include "Magnum/Math/Color.h"
#include "Magnum/Math/Matrix.h"
#include "Magnum/Math/Vector4.h"
namespace Magnum { namespace Test {
/* Tests also MeshView class. */
struct MeshGLTest: OpenGLTester {
explicit MeshGLTest();
void construct();
void constructCopy();
void constructMove();
void wrap();
void label();
#ifndef MAGNUM_TARGET_GLES2
void addVertexBufferUnsignedInt();
void addVertexBufferInt();
#endif
void addVertexBufferFloat();
#ifndef MAGNUM_TARGET_GLES
void addVertexBufferDouble();
#endif
#ifndef MAGNUM_TARGET_GLES2
void addVertexBufferVectorNui();
void addVertexBufferVectorNi();
#endif
void addVertexBufferVectorN();
#ifndef MAGNUM_TARGET_GLES
void addVertexBufferVectorNd();
#endif
void addVertexBufferMatrixNxN();
#ifndef MAGNUM_TARGET_GLES
void addVertexBufferMatrixNxNd();
#endif
#ifndef MAGNUM_TARGET_GLES2
void addVertexBufferMatrixMxN();
#endif
#ifndef MAGNUM_TARGET_GLES
void addVertexBufferMatrixMxNd();
#endif
#ifndef MAGNUM_TARGET_GLES2
void addVertexBufferUnsignedIntWithUnsignedShort();
void addVertexBufferUnsignedIntWithShort();
void addVertexBufferIntWithUnsignedShort();
void addVertexBufferIntWithShort();
#endif
/* Other Float types omitted (covered by addVertexBufferNormalized()) */
void addVertexBufferFloatWithHalfFloat();
#ifndef MAGNUM_TARGET_GLES
void addVertexBufferFloatWithDouble();
void addVertexBufferVector3WithUnsignedInt10f11f11fRev();
#endif
#ifndef MAGNUM_TARGET_GLES2
void addVertexBufferVector4WithUnsignedInt2101010Rev();
void addVertexBufferVector4WithInt2101010Rev();
#endif
void addVertexBufferLessVectorComponents();
void addVertexBufferNormalized();
#ifndef MAGNUM_TARGET_GLES
void addVertexBufferBGRA();
#endif
void addVertexBufferMultiple();
void addVertexBufferMultipleGaps();
void setIndexBuffer();
void setIndexBufferRange();
void setIndexBufferUnsignedInt();
#ifndef MAGNUM_TARGET_GLES
void setBaseVertex();
#endif
void setInstanceCount();
void setInstanceCountIndexed();
#ifndef MAGNUM_TARGET_GLES
void setInstanceCountBaseInstance();
void setInstanceCountBaseInstanceIndexed();
void setInstanceCountBaseVertex();
void setInstanceCountBaseVertexBaseInstance();
#endif
void addVertexBufferInstancedFloat();
#ifndef MAGNUM_TARGET_GLES2
void addVertexBufferInstancedInteger();
#endif
#ifndef MAGNUM_TARGET_GLES
void addVertexBufferInstancedDouble();
#endif
void multiDraw();
void multiDrawIndexed();
#ifndef MAGNUM_TARGET_GLES
void multiDrawBaseVertex();
#endif
};
MeshGLTest::MeshGLTest() {
addTests({&MeshGLTest::construct,
&MeshGLTest::constructCopy,
&MeshGLTest::constructMove,
&MeshGLTest::wrap,
&MeshGLTest::label,
#ifndef MAGNUM_TARGET_GLES2
&MeshGLTest::addVertexBufferUnsignedInt,
&MeshGLTest::addVertexBufferInt,
#endif
&MeshGLTest::addVertexBufferFloat,
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::addVertexBufferDouble,
#endif
#ifndef MAGNUM_TARGET_GLES2
&MeshGLTest::addVertexBufferVectorNui,
&MeshGLTest::addVertexBufferVectorNi,
#endif
&MeshGLTest::addVertexBufferVectorN,
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::addVertexBufferVectorNd,
#endif
&MeshGLTest::addVertexBufferMatrixNxN,
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::addVertexBufferMatrixNxNd,
#endif
#ifndef MAGNUM_TARGET_GLES2
&MeshGLTest::addVertexBufferMatrixMxN,
#endif
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::addVertexBufferMatrixMxNd,
#endif
#ifndef MAGNUM_TARGET_GLES2
&MeshGLTest::addVertexBufferUnsignedIntWithUnsignedShort,
&MeshGLTest::addVertexBufferUnsignedIntWithShort,
&MeshGLTest::addVertexBufferIntWithUnsignedShort,
&MeshGLTest::addVertexBufferIntWithShort,
#endif
&MeshGLTest::addVertexBufferFloatWithHalfFloat,
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::addVertexBufferFloatWithDouble,
&MeshGLTest::addVertexBufferVector3WithUnsignedInt10f11f11fRev,
#endif
#ifndef MAGNUM_TARGET_GLES2
&MeshGLTest::addVertexBufferVector4WithUnsignedInt2101010Rev,
&MeshGLTest::addVertexBufferVector4WithInt2101010Rev,
#endif
&MeshGLTest::addVertexBufferLessVectorComponents,
&MeshGLTest::addVertexBufferNormalized,
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::addVertexBufferBGRA,
#endif
&MeshGLTest::addVertexBufferMultiple,
&MeshGLTest::addVertexBufferMultipleGaps,
&MeshGLTest::setIndexBuffer,
&MeshGLTest::setIndexBufferRange,
&MeshGLTest::setIndexBufferUnsignedInt,
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::setBaseVertex,
#endif
&MeshGLTest::setInstanceCount,
&MeshGLTest::setInstanceCountIndexed,
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::setInstanceCountBaseInstance,
&MeshGLTest::setInstanceCountBaseInstanceIndexed,
&MeshGLTest::setInstanceCountBaseVertex,
&MeshGLTest::setInstanceCountBaseVertexBaseInstance,
#endif
&MeshGLTest::addVertexBufferInstancedFloat,
#ifndef MAGNUM_TARGET_GLES2
&MeshGLTest::addVertexBufferInstancedInteger,
#endif
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::addVertexBufferInstancedDouble,
#endif
&MeshGLTest::multiDraw,
&MeshGLTest::multiDrawIndexed,
#ifndef MAGNUM_TARGET_GLES
&MeshGLTest::multiDrawBaseVertex
#endif
});
}
void MeshGLTest::construct() {
{
const Mesh mesh;
MAGNUM_VERIFY_NO_ERROR();
#ifndef MAGNUM_TARGET_GLES
if(Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_array_object>())
#elif defined(MAGNUM_TARGET_GLES2)
if(Context::current().isExtensionSupported<Extensions::GL::OES::vertex_array_object>())
#endif
{
CORRADE_VERIFY(mesh.id() > 0);
}
}
MAGNUM_VERIFY_NO_ERROR();
}
void MeshGLTest::constructCopy() {
CORRADE_VERIFY(!(std::is_constructible<Mesh, const Mesh&>{}));
CORRADE_VERIFY(!(std::is_assignable<Mesh, const Mesh&>{}));
}
void MeshGLTest::constructMove() {
Mesh a;
const Int id = a.id();
MAGNUM_VERIFY_NO_ERROR();
#ifndef MAGNUM_TARGET_GLES
if(Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_array_object>())
#elif defined(MAGNUM_TARGET_GLES2)
if(Context::current().isExtensionSupported<Extensions::GL::OES::vertex_array_object>())
#endif
{
CORRADE_VERIFY(id > 0);
}
Mesh b(std::move(a));
CORRADE_COMPARE(a.id(), 0);
CORRADE_COMPARE(b.id(), id);
Mesh c;
const Int cId = c.id();
c = std::move(b);
MAGNUM_VERIFY_NO_ERROR();
#ifndef MAGNUM_TARGET_GLES
if(Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_array_object>())
#elif defined(MAGNUM_TARGET_GLES2)
if(Context::current().isExtensionSupported<Extensions::GL::OES::vertex_array_object>())
#endif
{
CORRADE_VERIFY(cId > 0);
}
CORRADE_COMPARE(b.id(), cId);
CORRADE_COMPARE(c.id(), id);
}
void MeshGLTest::wrap() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_array_object>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_array_object::string() + std::string{" is not supported."});
#elif defined(MAGNUM_TARGET_GLES2)
if(!Context::current().isExtensionSupported<Extensions::GL::OES::vertex_array_object>())
CORRADE_SKIP(Extensions::GL::OES::vertex_array_object::string() + std::string{" is not supported."});
#endif
GLuint id;
#ifndef MAGNUM_TARGET_GLES2
glGenVertexArrays(1, &id);
#else
glGenVertexArraysOES(1, &id);
#endif
/* Releasing won't delete anything */
{
auto mesh = Mesh::wrap(id, ObjectFlag::DeleteOnDestruction);
CORRADE_COMPARE(mesh.release(), id);
}
/* ...so we can wrap it again */
Mesh::wrap(id);
#ifndef MAGNUM_TARGET_GLES2
glDeleteVertexArrays(1, &id);
#else
glDeleteVertexArraysOES(1, &id);
#endif
}
void MeshGLTest::label() {
/* No-Op version is tested in AbstractObjectGLTest */
if(!Context::current().isExtensionSupported<Extensions::GL::KHR::debug>() &&
!Context::current().isExtensionSupported<Extensions::GL::EXT::debug_label>())
CORRADE_SKIP("Required extension is not available");
Mesh mesh;
CORRADE_COMPARE(mesh.label(), "");
MAGNUM_VERIFY_NO_ERROR();
mesh.setLabel("MyMesh");
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(mesh.label(), "MyMesh");
}
namespace {
struct FloatShader: AbstractShaderProgram {
explicit FloatShader(const std::string& type, const std::string& conversion);
};
#ifndef MAGNUM_TARGET_GLES2
struct IntegerShader: AbstractShaderProgram {
explicit IntegerShader(const std::string& type);
};
#endif
#ifndef MAGNUM_TARGET_GLES
struct DoubleShader: AbstractShaderProgram {
explicit DoubleShader(const std::string& type, const std::string& outputType, const std::string& conversion);
};
#endif
struct Checker {
Checker(AbstractShaderProgram&& shader, RenderbufferFormat format, Mesh& mesh);
template<class T> T get(PixelFormat format, PixelType type);
Renderbuffer renderbuffer;
Framebuffer framebuffer;
};
}
#ifndef DOXYGEN_GENERATING_OUTPUT
FloatShader::FloatShader(const std::string& type, const std::string& conversion) {
/* We need special version for ES3, because GLSL in ES2 doesn't support
rectangle matrices */
#ifndef MAGNUM_TARGET_GLES
Shader vert(
#ifndef CORRADE_TARGET_APPLE
Version::GL210
#else
Version::GL310
#endif
, Shader::Type::Vertex);
Shader frag(
#ifndef CORRADE_TARGET_APPLE
Version::GL210
#else
Version::GL310
#endif
, Shader::Type::Fragment);
#elif defined(MAGNUM_TARGET_GLES2)
Shader vert(Version::GLES200, Shader::Type::Vertex);
Shader frag(Version::GLES200, Shader::Type::Fragment);
#else
Shader vert(Version::GLES300, Shader::Type::Vertex);
Shader frag(Version::GLES300, Shader::Type::Fragment);
#endif
vert.addSource(
"#if !defined(GL_ES) && __VERSION__ == 120\n"
"#define mediump\n"
"#endif\n"
"#if defined(GL_ES) || __VERSION__ == 120\n"
"#define in attribute\n"
"#define out varying\n"
"#endif\n"
"in mediump " + type + " value;\n"
"out mediump " + type + " valueInterpolated;\n"
"void main() {\n"
" valueInterpolated = value;\n"
" gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n"
"}\n");
frag.addSource(
"#if !defined(GL_ES) && __VERSION__ == 120\n"
"#define mediump\n"
"#endif\n"
"#if defined(GL_ES) || __VERSION__ == 120\n"
"#define in varying\n"
"#define result gl_FragColor\n"
"#endif\n"
"in mediump " + type + " valueInterpolated;\n"
"#if !defined(GL_ES) && __VERSION__ >= 130\n"
"out mediump vec4 result;\n"
"#endif\n"
"void main() { result = " + conversion + "; }\n");
CORRADE_INTERNAL_ASSERT_OUTPUT(Shader::compile({vert, frag}));
attachShaders({vert, frag});
bindAttributeLocation(0, "value");
CORRADE_INTERNAL_ASSERT_OUTPUT(link());
}
#ifndef MAGNUM_TARGET_GLES2
IntegerShader::IntegerShader(const std::string& type) {
#ifndef MAGNUM_TARGET_GLES
Shader vert(
#ifndef CORRADE_TARGET_APPLE
Version::GL300
#else
Version::GL310
#endif
, Shader::Type::Vertex);
Shader frag(
#ifndef CORRADE_TARGET_APPLE
Version::GL300
#else
Version::GL310
#endif
, Shader::Type::Fragment);
#else
Shader vert(Version::GLES300, Shader::Type::Vertex);
Shader frag(Version::GLES300, Shader::Type::Fragment);
#endif
vert.addSource("in mediump " + type + " value;\n"
"flat out mediump " + type + " valueInterpolated;\n"
"void main() {\n"
" valueInterpolated = value;\n"
" gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n"
"}\n");
frag.addSource("flat in mediump " + type + " valueInterpolated;\n"
"out mediump " + type + " result;\n"
"void main() { result = valueInterpolated; }\n");
CORRADE_INTERNAL_ASSERT_OUTPUT(Shader::compile({vert, frag}));
attachShaders({vert, frag});
bindAttributeLocation(0, "value");
CORRADE_INTERNAL_ASSERT_OUTPUT(link());
}
#endif
#ifndef MAGNUM_TARGET_GLES
DoubleShader::DoubleShader(const std::string& type, const std::string& outputType, const std::string& conversion) {
constexpr const Version version =
#ifndef CORRADE_TARGET_APPLE
Version::GL300;
#else
Version::GL400;
#endif
Shader vert{version, Shader::Type::Vertex};
Shader frag(version, Shader::Type::Fragment);
vert.addSource(
"#extension GL_ARB_vertex_attrib_64bit: require\n"
"#extension GL_ARB_gpu_shader_fp64: require\n"
"in " + type + " value;\n"
"out " + outputType + " valueInterpolated;\n"
"void main() {\n"
" valueInterpolated = " + conversion + ";\n"
" gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n"
"}\n");
frag.addSource("in " + outputType + " valueInterpolated;\n"
"out " + outputType + " result;\n"
"void main() { result = valueInterpolated; }\n");
CORRADE_INTERNAL_ASSERT_OUTPUT(Shader::compile({vert, frag}));
attachShaders({vert, frag});
bindAttributeLocation(0, "value");
CORRADE_INTERNAL_ASSERT_OUTPUT(link());
}
#endif
Checker::Checker(AbstractShaderProgram&& shader, RenderbufferFormat format, Mesh& mesh): framebuffer({{}, Vector2i(1)}) {
renderbuffer.setStorage(format, Vector2i(1));
framebuffer.attachRenderbuffer(Framebuffer::ColorAttachment(0), renderbuffer);
framebuffer.bind();
mesh.setPrimitive(MeshPrimitive::Points)
.setCount(2);
/* Skip first vertex so we test also offsets */
MeshView(mesh)
.setCount(1)
.setBaseVertex(mesh.baseVertex())
.setInstanceCount(mesh.instanceCount())
#ifndef MAGNUM_TARGET_GLES
.setBaseInstance(mesh.baseInstance())
#endif
.setIndexRange(1)
.draw(shader);
}
template<class T> T Checker::get(PixelFormat format, PixelType type) {
return framebuffer.read({{}, Vector2i{1}}, {format, type}).data<T>()[0];
}
#endif
#ifndef MAGNUM_TARGET_GLES2
void MeshGLTest::addVertexBufferUnsignedInt() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, UnsignedInt> Attribute;
constexpr UnsignedInt data[] = { 0, 157, 35681 };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("uint"), RenderbufferFormat::R32UI, mesh)
.get<UnsignedInt>(PixelFormat::RedInteger, PixelType::UnsignedInt);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 35681);
}
void MeshGLTest::addVertexBufferInt() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Int> Attribute;
constexpr Int data[] = { 0, 457931, 27530 };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("int"), RenderbufferFormat::R32I, mesh)
.get<Int>(PixelFormat::RedInteger, PixelType::Int);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 27530);
}
#endif
void MeshGLTest::addVertexBufferFloat() {
typedef Attribute<0, Float> Attribute;
const Float data[] = { 0.0f, -0.7f, Math::unpack<Float, UnsignedByte>(96) };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("float", "vec4(valueInterpolated, 0.0, 0.0, 0.0)"),
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<UnsignedByte>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 96);
}
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::addVertexBufferDouble() {
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_attrib_64bit>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_attrib_64bit::string() + std::string(" is not available."));
typedef Attribute<0, Double> Attribute;
const Double data[] = { 0.0, -0.7, Math::unpack<Double, UnsignedShort>(45828) };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 8, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(DoubleShader("double", "float", "float(value)"),
RenderbufferFormat::R16, mesh).get<UnsignedShort>(PixelFormat::Red, PixelType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 45828);
}
#endif
#ifndef MAGNUM_TARGET_GLES2
void MeshGLTest::addVertexBufferVectorNui() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Vector3ui> Attribute;
constexpr Vector3ui data[] = { {}, {37448, 547686, 156}, {27592, 157, 25} };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 3*4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("uvec3"), RenderbufferFormat::RGBA32UI, mesh)
.get<Vector3ui>(PixelFormat::RGBAInteger, PixelType::UnsignedInt);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Vector3ui(27592, 157, 25));
}
void MeshGLTest::addVertexBufferVectorNi() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Vector2i> Attribute;
constexpr Vector2i data[] = { {}, {-37448, 547686}, {27592, -157} };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 2*4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("ivec2"), RenderbufferFormat::RG32I, mesh)
.get<Vector2i>(PixelFormat::RGInteger, PixelType::Int);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Vector2i(27592, -157));
}
#endif
void MeshGLTest::addVertexBufferVectorN() {
typedef Attribute<0, Vector3> Attribute;
const Vector3 data[] = { {}, {0.0f, -0.9f, 1.0f}, Math::unpack<Vector3>(Color3ub(96, 24, 156)) };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 3*4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("vec3", "vec4(valueInterpolated, 0.0)"),
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color3ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Color3ub(96, 24, 156));
}
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::addVertexBufferVectorNd() {
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_attrib_64bit>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_attrib_64bit::string() + std::string(" is not available."));
typedef Attribute<0, Vector4d> Attribute;
const Vector4d data[] = {
{}, {0.0, -0.9, 1.0, 1.25},
Math::unpack<Vector4d>(Math::Vector4<UnsignedShort>(315, 65201, 2576, 12))
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4*8, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(DoubleShader("dvec4", "vec4", "vec4(value)"),
RenderbufferFormat::RGBA16, mesh).get<Math::Vector4<UnsignedShort>>(PixelFormat::RGBA, PixelType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Math::Vector4<UnsignedShort>(315, 65201, 2576, 12));
}
#endif
void MeshGLTest::addVertexBufferMatrixNxN() {
typedef Attribute<0, Matrix3x3> Attribute;
const Matrix3x3 data[] = {
{},
Matrix3x3::fromDiagonal({0.0f, -0.9f, 1.0f}),
Matrix3x3::fromDiagonal(Math::unpack<Vector3>(Color3ub(96, 24, 156)))
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 3*3*4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("mat3",
"vec4(valueInterpolated[0][0], valueInterpolated[1][1], valueInterpolated[2][2], 0.0)"),
RenderbufferFormat::RGBA8, mesh).get<Color3ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Color3ub(96, 24, 156));
}
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::addVertexBufferMatrixNxNd() {
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_attrib_64bit>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_attrib_64bit::string() + std::string(" is not available."));
typedef Attribute<0, Matrix3x3d> Attribute;
const Matrix3x3d data[] = {
{},
Matrix3x3d::fromDiagonal({0.0, -0.9, 1.0}),
Matrix3x3d::fromDiagonal(Math::unpack<Vector3d>(Math::Vector3<UnsignedShort>(315, 65201, 2576)))
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 3*3*8, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(DoubleShader("dmat3", "vec4",
"vec4(value[0][0], value[1][1], value[2][2], 0.0)"),
RenderbufferFormat::RGBA16, mesh).get<Math::Vector3<UnsignedShort>>(PixelFormat::RGB, PixelType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
{
CORRADE_EXPECT_FAIL_IF(Context::current().detectedDriver() & (Context::DetectedDriver::AMD|Context::DetectedDriver::NVidia), "Somehow only first two values are extracted");
CORRADE_COMPARE(value, Math::Vector3<UnsignedShort>(315, 65201, 2576));
}
/* This is wrong, but check if it's still the right wrong. Fails on AMD
15.201.1151 but seems to be fixed in 15.300.1025.0 */
if(Context::current().detectedDriver() & (Context::DetectedDriver::AMD|Context::DetectedDriver::NVidia))
CORRADE_COMPARE(value, Math::Vector3<UnsignedShort>(315, 65201, 0));
}
#endif
#ifndef MAGNUM_TARGET_GLES2
void MeshGLTest::addVertexBufferMatrixMxN() {
typedef Attribute<0, Matrix3x4> Attribute;
const Matrix3x4 data[] = {
{},
Matrix3x4::fromDiagonal({0.0f, -0.9f, 1.0f}),
Matrix3x4::fromDiagonal(Math::unpack<Vector3>(Color3ub(96, 24, 156)))
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 3*4*4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("mat3x4",
"vec4(valueInterpolated[0][0], valueInterpolated[1][1], valueInterpolated[2][2], 0.0)"),
RenderbufferFormat::RGBA8, mesh).get<Color3ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Color3ub(96, 24, 156));
}
#endif
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::addVertexBufferMatrixMxNd() {
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_attrib_64bit>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_attrib_64bit::string() + std::string(" is not available."));
typedef Attribute<0, Matrix3x4d> Attribute;
const Matrix3x4d data[] = {
{},
Matrix3x4d::fromDiagonal({0.0f, -0.9f, 1.0f}),
Matrix3x4d::fromDiagonal(Math::unpack<Vector3d>(Math::Vector3<UnsignedShort>(315, 65201, 2576)))
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 3*4*8, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(DoubleShader("dmat3x4", "vec4",
"vec4(value[0][0], value[1][1], value[2][2], 0.0)"),
RenderbufferFormat::RGBA16, mesh).get<Math::Vector3<UnsignedShort>>(PixelFormat::RGB, PixelType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
{
CORRADE_EXPECT_FAIL_IF(Context::current().detectedDriver() & (Context::DetectedDriver::AMD|Context::DetectedDriver::NVidia), "Somehow only first two values are extracted");
CORRADE_COMPARE(value, Math::Vector3<UnsignedShort>(315, 65201, 2576));
}
/* This is wrong, but check if it's still the right wrong. Fails on AMD
15.201.1151 but seems to be fixed in 15.300.1025.0 */
if(Context::current().detectedDriver() & (Context::DetectedDriver::AMD|Context::DetectedDriver::NVidia))
CORRADE_COMPARE(value, Math::Vector3<UnsignedShort>(315, 65201, 0));
}
#endif
#ifndef MAGNUM_TARGET_GLES2
void MeshGLTest::addVertexBufferUnsignedIntWithUnsignedShort() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, UnsignedInt> Attribute;
constexpr UnsignedShort data[] = { 0, 49563, 2128, 3821, 16583 };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 2, 2, Attribute(Attribute::DataType::UnsignedShort));
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("uint"), RenderbufferFormat::R16UI, mesh)
.get<UnsignedShort>(PixelFormat::RedInteger, PixelType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 16583);
}
void MeshGLTest::addVertexBufferUnsignedIntWithShort() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, UnsignedInt> Attribute;
constexpr Short data[] = { 0, 24563, 2128, 3821, 16583 };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 2, 2, Attribute(Attribute::DataType::Short));
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("uint"), RenderbufferFormat::R16I, mesh)
.get<Short>(PixelFormat::RedInteger, PixelType::Short);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 16583);
}
void MeshGLTest::addVertexBufferIntWithUnsignedShort() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Int> Attribute;
constexpr UnsignedShort data[] = { 0, 49563, 2128, 3821, 16583 };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 2, 2, Attribute(Attribute::DataType::UnsignedShort));
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("int"), RenderbufferFormat::R16UI, mesh)
.get<UnsignedShort>(PixelFormat::RedInteger, PixelType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 16583);
}
void MeshGLTest::addVertexBufferIntWithShort() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Int> Attribute;
constexpr Short data[] = { 0, 24563, 2128, 3821, -16583 };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 2, 2, Attribute(Attribute::DataType::Short));
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("int"), RenderbufferFormat::R16I, mesh)
.get<Short>(PixelFormat::RedInteger, PixelType::Short);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, -16583);
}
#endif
void MeshGLTest::addVertexBufferFloatWithHalfFloat() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::half_float_vertex>())
CORRADE_SKIP(Extensions::GL::ARB::half_float_vertex::string() + std::string(" is not supported."));
#elif defined(MAGNUM_TARGET_GLES2)
if(!Context::current().isExtensionSupported<Extensions::GL::OES::vertex_half_float>())
CORRADE_SKIP(Extensions::GL::OES::vertex_half_float::string() + std::string(" is not supported."));
#endif
typedef Attribute<0, Float> Attribute;
Buffer buffer;
buffer.setData({nullptr, 6}, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 2, Attribute(Attribute::DataType::HalfFloat));
MAGNUM_VERIFY_NO_ERROR();
/* Won't test the actual values */
}
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::addVertexBufferFloatWithDouble() {
typedef Attribute<0, Float> Attribute;
const Double data[] = { 0.0, -0.7, Math::unpack<Double, UnsignedByte>(186) };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 8, Attribute(Attribute::DataType::Double));
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("float", "vec4(valueInterpolated, 0.0, 0.0, 0.0)"),
RenderbufferFormat::RGBA8, mesh).get<UnsignedByte>(PixelFormat::RGBA, PixelType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 186);
}
void MeshGLTest::addVertexBufferVector3WithUnsignedInt10f11f11fRev() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_type_10f_11f_11f_rev>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_type_10f_11f_11f_rev::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Vector3> Attribute;
Buffer buffer;
buffer.setData({nullptr, 12}, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4, Attribute(Attribute::DataType::UnsignedInt10f11f11fRev));
MAGNUM_VERIFY_NO_ERROR();
/* Won't test the actual values */
}
#endif
#ifndef MAGNUM_TARGET_GLES2
void MeshGLTest::addVertexBufferVector4WithUnsignedInt2101010Rev() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_type_2_10_10_10_rev>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_type_2_10_10_10_rev::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Vector4> Attribute;
Buffer buffer;
buffer.setData({nullptr, 12}, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4, Attribute(Attribute::DataType::UnsignedInt2101010Rev));
MAGNUM_VERIFY_NO_ERROR();
/* Won't test the actual values */
}
void MeshGLTest::addVertexBufferVector4WithInt2101010Rev() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_type_2_10_10_10_rev>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_type_2_10_10_10_rev::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Vector4> Attribute;
Buffer buffer;
buffer.setData({nullptr, 12}, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4, Attribute(Attribute::DataType::Int2101010Rev));
MAGNUM_VERIFY_NO_ERROR();
/* Won't test the actual values */
}
#endif
void MeshGLTest::addVertexBufferLessVectorComponents() {
typedef Attribute<0, Vector4> Attribute;
const Vector3 data[] = {
{}, {0.0f, -0.9f, 1.0f},
Math::unpack<Vector3>(Color3ub(96, 24, 156))
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 3*4, Attribute(Attribute::Components::Three));
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("vec4", "valueInterpolated"),
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Color4ub(96, 24, 156, 255));
}
void MeshGLTest::addVertexBufferNormalized() {
typedef Attribute<0, Vector3> Attribute;
constexpr Color4ub data[] = { {}, {0, 128, 64}, {32, 156, 228} };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4, Attribute(Attribute::DataType::UnsignedByte, Attribute::DataOption::Normalized), 1);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("vec3", "vec4(valueInterpolated, 0.0)"),
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color3ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Color3ub(32, 156, 228));
}
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::addVertexBufferBGRA() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_array_bgra>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_array_bgra::string() + std::string(" is not available."));
#endif
typedef Attribute<0, Vector4> Attribute;
constexpr Color4ub data[] = { {}, {0, 128, 64, 161}, {96, 24, 156, 225} };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4, Attribute(Attribute::Components::BGRA, Attribute::DataType::UnsignedByte, Attribute::DataOption::Normalized));
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("vec4", "valueInterpolated"),
RenderbufferFormat::RGBA8, mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Color4ub(156, 24, 96, 225));
}
#endif
namespace {
struct MultipleShader: AbstractShaderProgram {
typedef Attribute<0, Vector3> Position;
typedef Attribute<1, Vector3> Normal;
typedef Attribute<2, Vector2> TextureCoordinates;
explicit MultipleShader();
};
}
#ifndef DOXYGEN_GENERATING_OUTPUT
MultipleShader::MultipleShader() {
#ifndef MAGNUM_TARGET_GLES
Shader vert(
#ifndef CORRADE_TARGET_APPLE
Version::GL210
#else
Version::GL310
#endif
, Shader::Type::Vertex);
Shader frag(
#ifndef CORRADE_TARGET_APPLE
Version::GL210
#else
Version::GL310
#endif
, Shader::Type::Fragment);
#else
Shader vert(Version::GLES200, Shader::Type::Vertex);
Shader frag(Version::GLES200, Shader::Type::Fragment);
#endif
vert.addSource(
"#if !defined(GL_ES) && __VERSION__ == 120\n"
"#define mediump\n"
"#endif\n"
"#if defined(GL_ES) || __VERSION__ == 120\n"
"#define in attribute\n"
"#define out varying\n"
"#endif\n"
"in mediump vec4 position;\n"
"in mediump vec3 normal;\n"
"in mediump vec2 textureCoordinates;\n"
"out mediump vec4 valueInterpolated;\n"
"void main() {\n"
" valueInterpolated = position + vec4(normal, 0.0) + vec4(textureCoordinates, 0.0, 0.0);\n"
" gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n"
"}\n");
frag.addSource(
"#if !defined(GL_ES) && __VERSION__ == 120\n"
"#define mediump\n"
"#endif\n"
"#if defined(GL_ES) || __VERSION__ == 120\n"
"#define in varying\n"
"#define result gl_FragColor\n"
"#endif\n"
"in mediump vec4 valueInterpolated;\n"
"#if !defined(GL_ES) && __VERSION__ >= 130\n"
"out mediump vec4 result;\n"
"#endif\n"
"void main() { result = valueInterpolated; }\n");
CORRADE_INTERNAL_ASSERT_OUTPUT(Shader::compile({vert, frag}));
attachShaders({vert, frag});
bindAttributeLocation(Position::Location, "position");
bindAttributeLocation(Normal::Location, "normal");
bindAttributeLocation(TextureCoordinates::Location, "textureCoordinates");
CORRADE_INTERNAL_ASSERT_OUTPUT(link());
}
#endif
void MeshGLTest::addVertexBufferMultiple() {
const Float data[] = {
0.0f, /* Offset */
/* First attribute */
0.3f, 0.1f, 0.5f,
0.4f, 0.0f, -0.9f,
1.0f, -0.5f,
/* Second attribute */
Math::unpack<Float, UnsignedByte>(64),
Math::unpack<Float, UnsignedByte>(17),
Math::unpack<Float, UnsignedByte>(56),
Math::unpack<Float, UnsignedByte>(15),
Math::unpack<Float, UnsignedByte>(164),
Math::unpack<Float, UnsignedByte>(17),
Math::unpack<Float, UnsignedByte>(97),
Math::unpack<Float, UnsignedByte>(28)
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 1*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader(),
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Color4ub(64 + 15 + 97, 17 + 164 + 28, 56 + 17, 255));
}
void MeshGLTest::addVertexBufferMultipleGaps() {
const Float data[] = {
0.0f, 0.0f, 0.0f, 0.0f, /* Offset */
/* First attribute */
0.3f, 0.1f, 0.5f, 0.0f,
0.4f, 0.0f, -0.9f, 0.0f,
1.0f, -0.5f, 0.0f, 0.0f,
/* Second attribute */
Math::unpack<Float, UnsignedByte>(64),
Math::unpack<Float, UnsignedByte>(17),
Math::unpack<Float, UnsignedByte>(56), 0.0f,
Math::unpack<Float, UnsignedByte>(15),
Math::unpack<Float, UnsignedByte>(164),
Math::unpack<Float, UnsignedByte>(17), 0.0f,
Math::unpack<Float, UnsignedByte>(97),
Math::unpack<Float, UnsignedByte>(28), 0.0f, 0.0f
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.addVertexBuffer(buffer, 4*4,
MultipleShader::Position(), 1*4,
MultipleShader::Normal(), 1*4,
MultipleShader::TextureCoordinates(), 2*4);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader(),
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, Color4ub(64 + 15 + 97, 17 + 164 + 28, 56 + 17, 255));
}
namespace {
const Float indexedVertexData[] = {
0.0f, /* Offset */
/* First vertex */
Math::unpack<Float, UnsignedByte>(64),
Math::unpack<Float, UnsignedByte>(17),
Math::unpack<Float, UnsignedByte>(56),
Math::unpack<Float, UnsignedByte>(15),
Math::unpack<Float, UnsignedByte>(164),
Math::unpack<Float, UnsignedByte>(17),
Math::unpack<Float, UnsignedByte>(97),
Math::unpack<Float, UnsignedByte>(28),
/* Second vertex */
0.3f, 0.1f, 0.5f,
0.4f, 0.0f, -0.9f,
1.0f, -0.5f
};
#ifndef MAGNUM_TARGET_GLES
const Float indexedVertexDataBaseVertex[] = {
0.0f, 0.0f, /* Offset */
/* First vertex */
0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f,
0.0f, 0.0f,
/* Second vertex */
0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f,
0.0f, 0.0f,
/* Third vertex */
Math::unpack<Float, UnsignedByte>(64),
Math::unpack<Float, UnsignedByte>(17),
Math::unpack<Float, UnsignedByte>(56),
Math::unpack<Float, UnsignedByte>(15),
Math::unpack<Float, UnsignedByte>(164),
Math::unpack<Float, UnsignedByte>(17),
Math::unpack<Float, UnsignedByte>(97),
Math::unpack<Float, UnsignedByte>(28),
/* Fourth vertex */
0.3f, 0.1f, 0.5f,
0.4f, 0.0f, -0.9f,
1.0f, -0.5f
};
#endif
constexpr Color4ub indexedResult(64 + 15 + 97, 17 + 164 + 28, 56 + 17, 255);
}
void MeshGLTest::setIndexBuffer() {
Buffer vertices;
vertices.setData(indexedVertexData, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.addVertexBuffer(vertices, 1*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader{},
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
void MeshGLTest::setIndexBufferRange() {
Buffer vertices;
vertices.setData(indexedVertexData, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.addVertexBuffer(vertices, 1*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort, 0, 1);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader{},
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
void MeshGLTest::setIndexBufferUnsignedInt() {
#ifdef MAGNUM_TARGET_GLES2
if(!Context::current().isExtensionSupported<Extensions::GL::OES::element_index_uint>())
CORRADE_SKIP(Extensions::GL::OES::element_index_uint::string() + std::string(" is not available."));
#endif
Buffer vertices;
vertices.setData(indexedVertexData, BufferUsage::StaticDraw);
constexpr UnsignedInt indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.addVertexBuffer(vertices, 1*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 4, Mesh::IndexType::UnsignedInt);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader{},
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::setBaseVertex() {
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_elements_base_vertex>())
CORRADE_SKIP(Extensions::GL::ARB::draw_elements_base_vertex::string() + std::string(" is not available."));
Buffer vertices;
vertices.setData(indexedVertexDataBaseVertex, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(2)
.addVertexBuffer(vertices, 2*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader{}, RenderbufferFormat::RGBA8,
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
#endif
void MeshGLTest::setInstanceCount() {
/* Verbatim copy of addVertexBufferFloat() with added extension check and
setInstanceCount() call. It would just render three times the same
value. I'm too lazy to invent proper test case, so I'll just check that
it didn't generate any error and rendered something */
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
#elif defined(MAGNUM_TARGET_GLES2)
if(!Context::current().isExtensionSupported<Extensions::GL::ANGLE::instanced_arrays>() &&
!Context::current().isExtensionSupported<Extensions::GL::EXT::draw_instanced>() &&
!Context::current().isExtensionSupported<Extensions::GL::NV::draw_instanced>())
CORRADE_SKIP("Required extension is not available.");
#endif
typedef Attribute<0, Float> Attribute;
const Float data[] = { 0.0f, -0.7f, Math::unpack<Float, UnsignedByte>(96) };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.setInstanceCount(3)
.addVertexBuffer(buffer, 4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("float", "vec4(valueInterpolated, 0.0, 0.0, 0.0)"),
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<UnsignedByte>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 96);
}
void MeshGLTest::setInstanceCountIndexed() {
/* Verbatim copy of setIndexBuffer() with added extension check and
setInstanceCount() call. It would just render three times the same
value. I'm too lazy to invent proper test case, so I'll just check that
it didn't generate any error and rendered something */
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
#elif defined(MAGNUM_TARGET_GLES2)
if(!Context::current().isExtensionSupported<Extensions::GL::ANGLE::instanced_arrays>() &&
!Context::current().isExtensionSupported<Extensions::GL::EXT::draw_instanced>() &&
!Context::current().isExtensionSupported<Extensions::GL::NV::draw_instanced>())
CORRADE_SKIP("Required extension is not available.");
#endif
Buffer vertices;
vertices.setData(indexedVertexData, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setInstanceCount(3)
.addVertexBuffer(vertices, 1*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader{},
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::setInstanceCountBaseInstance() {
/* Verbatim copy of setInstanceCount() with additional extension check and
setBaseInstance() call. It would just render three times the same
value. I'm too lazy to invent proper test case, so I'll just check that
it didn't generate any error and rendered something */
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::base_instance>())
CORRADE_SKIP(Extensions::GL::ARB::base_instance::string() + std::string(" is not available."));
typedef Attribute<0, Float> Attribute;
const Float data[] = { 0.0f, -0.7f, Math::unpack<Float, UnsignedByte>(96) };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(1)
.setInstanceCount(3)
.setBaseInstance(72)
.addVertexBuffer(buffer, 4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("float", "vec4(valueInterpolated, 0.0, 0.0, 0.0)"),
RenderbufferFormat::RGBA8,
mesh).get<UnsignedByte>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 96);
}
void MeshGLTest::setInstanceCountBaseInstanceIndexed() {
/* Verbatim copy of setInstanceCountIndexed() with additional extension
check and setBaseInstance() call. It would just render three times the
same value. I'm too lazy to invent proper test case, so I'll just check
that it didn't generate any error and rendered something */
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::base_instance>())
CORRADE_SKIP(Extensions::GL::ARB::base_instance::string() + std::string(" is not available."));
Buffer vertices;
vertices.setData(indexedVertexData, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setInstanceCount(3)
.setBaseInstance(72)
.addVertexBuffer(vertices, 1*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader{}, RenderbufferFormat::RGBA8,
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
void MeshGLTest::setInstanceCountBaseVertex() {
/* Verbatim copy of setBaseVertex() with additional extension check and
setInstanceCount() call. It would just render three times the same
value. I'm too lazy to invent proper test case, so I'll just check
that it didn't generate any error and rendered something */
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_elements_base_vertex>())
CORRADE_SKIP(Extensions::GL::ARB::draw_elements_base_vertex::string() + std::string(" is not available."));
Buffer vertices;
vertices.setData(indexedVertexDataBaseVertex, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(2)
.setInstanceCount(3)
.addVertexBuffer(vertices, 2*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader{}, RenderbufferFormat::RGBA8,
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
void MeshGLTest::setInstanceCountBaseVertexBaseInstance() {
/* Verbatim copy of setInstanceCountBaseVertex() with added extension check
and setBaseInstance() call. It would just render three times the same
value. I'm too lazy to invent proper test case, so I'll just check
that it didn't generate any error and rendered something */
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_elements_base_vertex>())
CORRADE_SKIP(Extensions::GL::ARB::draw_elements_base_vertex::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::base_instance>())
CORRADE_SKIP(Extensions::GL::ARB::base_instance::string() + std::string(" is not available."));
Buffer vertices;
vertices.setData(indexedVertexDataBaseVertex, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(2)
.setInstanceCount(3)
.setBaseInstance(72)
.addVertexBuffer(vertices, 2*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(MultipleShader{}, RenderbufferFormat::RGBA8,
mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
#endif
void MeshGLTest::addVertexBufferInstancedFloat() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::instanced_arrays>())
CORRADE_SKIP(Extensions::GL::ARB::instanced_arrays::string() + std::string(" is not available."));
#elif defined(MAGNUM_TARGET_GLES2)
if(!Context::current().isExtensionSupported<Extensions::GL::ANGLE::instanced_arrays>() &&
!Context::current().isExtensionSupported<Extensions::GL::EXT::instanced_arrays>() &&
!Context::current().isExtensionSupported<Extensions::GL::NV::instanced_arrays>())
CORRADE_SKIP("Required instancing extension is not available.");
if(!Context::current().isExtensionSupported<Extensions::GL::ANGLE::instanced_arrays>() &&
!Context::current().isExtensionSupported<Extensions::GL::EXT::draw_instanced>() &&
!Context::current().isExtensionSupported<Extensions::GL::NV::draw_instanced>())
CORRADE_SKIP("Required drawing extension is not available.");
#endif
typedef Attribute<0, Float> Attribute;
const Float data[] = {
0.0f, /* Offset */
/* Base vertex is ignored for instanced arrays */
-0.7f, /* First instance */
0.3f, /* Second instance */
Math::unpack<Float, UnsignedByte>(96) /* Third instance */
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setInstanceCount(3)
.addVertexBufferInstanced(buffer, 1, 4, Attribute{});
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(FloatShader("float", "vec4(valueInterpolated, 0.0, 0.0, 0.0)"),
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
mesh).get<UnsignedByte>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 96);
}
#ifndef MAGNUM_TARGET_GLES2
void MeshGLTest::addVertexBufferInstancedInteger() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::instanced_arrays>())
CORRADE_SKIP(Extensions::GL::ARB::instanced_arrays::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::gpu_shader4>())
CORRADE_SKIP(Extensions::GL::EXT::gpu_shader4::string() + std::string(" is not available."));
#endif
typedef Attribute<0, UnsignedInt> Attribute;
constexpr UnsignedInt data[] = {
0, /* Offset */
/* Base vertex is ignored for instanced arrays */
157, /* First instance */
25, /* Second instance */
35681 /* Third instance */
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setInstanceCount(3)
.addVertexBufferInstanced(buffer, 1, 4, Attribute{});
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(IntegerShader("uint"), RenderbufferFormat::R32UI, mesh)
.get<UnsignedInt>(PixelFormat::RedInteger, PixelType::UnsignedInt);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 35681);
}
#endif
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::addVertexBufferInstancedDouble() {
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_instanced>())
CORRADE_SKIP(Extensions::GL::ARB::draw_instanced::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::instanced_arrays>())
CORRADE_SKIP(Extensions::GL::ARB::instanced_arrays::string() + std::string(" is not available."));
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::vertex_attrib_64bit>())
CORRADE_SKIP(Extensions::GL::ARB::vertex_attrib_64bit::string() + std::string(" is not available."));
typedef Attribute<0, Double> Attribute;
const Double data[] = {
0.0, /* Offset */
/* Base vertex is ignored for instanced arrays */
-0.7, /* First instance */
0.3, /* Second instance */
Math::unpack<Double, UnsignedShort>(45828) /* Third instance */
};
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setInstanceCount(3)
.addVertexBufferInstanced(buffer, 1, 8, Attribute{});
MAGNUM_VERIFY_NO_ERROR();
const auto value = Checker(DoubleShader("double", "float", "float(value)"),
RenderbufferFormat::R16, mesh).get<UnsignedShort>(PixelFormat::Red, PixelType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 45828);
}
#endif
namespace {
struct MultiChecker {
MultiChecker(AbstractShaderProgram&& shader, Mesh& mesh);
template<class T> T get(PixelFormat format, PixelType type);
Renderbuffer renderbuffer;
Framebuffer framebuffer;
};
}
#ifndef DOXYGEN_GENERATING_OUTPUT
MultiChecker::MultiChecker(AbstractShaderProgram&& shader, Mesh& mesh): framebuffer({{}, Vector2i(1)}) {
renderbuffer.setStorage(
#ifndef MAGNUM_TARGET_GLES2
RenderbufferFormat::RGBA8,
#else
RenderbufferFormat::RGBA4,
#endif
Vector2i(1));
framebuffer.attachRenderbuffer(Framebuffer::ColorAttachment(0), renderbuffer);
framebuffer.bind();
mesh.setPrimitive(MeshPrimitive::Points)
.setCount(2);
/* Set zero count so we test mesh skipping */
MeshView a{mesh};
a.setCount(0);
/* Skip first vertex so we test also offsets */
MeshView b{mesh};
b.setCount(1)
.setBaseVertex(mesh.baseVertex());
MeshView c{mesh};
c.setCount(1);
if(mesh.isIndexed()) {
c.setBaseVertex(mesh.baseVertex())
.setIndexRange(1);
} else c.setBaseVertex(1);
MeshView::draw(shader, {a, b, c});
}
template<class T> T MultiChecker::get(PixelFormat format, PixelType type) {
return framebuffer.read({{}, Vector2i{1}}, {format, type}).data<T>()[0];
}
#endif
void MeshGLTest::multiDraw() {
#ifdef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::multi_draw_arrays>())
Debug() << Extensions::GL::EXT::multi_draw_arrays::string() << "not supported, using fallback implementation";
#endif
typedef Attribute<0, Float> Attribute;
const Float data[] = { 0.0f, -0.7f, Math::unpack<Float, UnsignedByte>(96) };
Buffer buffer;
buffer.setData(data, BufferUsage::StaticDraw);
Mesh mesh;
mesh.addVertexBuffer(buffer, 4, Attribute());
MAGNUM_VERIFY_NO_ERROR();
const auto value = MultiChecker(FloatShader("float", "vec4(valueInterpolated, 0.0, 0.0, 0.0)"),
mesh).get<UnsignedByte>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, 96);
}
void MeshGLTest::multiDrawIndexed() {
#ifdef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::EXT::multi_draw_arrays>())
Debug() << Extensions::GL::EXT::multi_draw_arrays::string() << "not supported, using fallback implementation";
#endif
Buffer vertices;
vertices.setData(indexedVertexData, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.addVertexBuffer(vertices, 1*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
const auto value = MultiChecker(MultipleShader{}, mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
#ifndef MAGNUM_TARGET_GLES
void MeshGLTest::multiDrawBaseVertex() {
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::draw_elements_base_vertex>())
CORRADE_SKIP(Extensions::GL::ARB::draw_elements_base_vertex::string() + std::string(" is not available."));
Buffer vertices;
vertices.setData(indexedVertexDataBaseVertex, BufferUsage::StaticDraw);
constexpr UnsignedShort indexData[] = { 2, 1, 0 };
Buffer indices{Buffer::TargetHint::ElementArray};
indices.setData(indexData, BufferUsage::StaticDraw);
Mesh mesh;
mesh.setBaseVertex(2)
.addVertexBuffer(vertices, 2*4, MultipleShader::Position(),
MultipleShader::Normal(), MultipleShader::TextureCoordinates())
.setIndexBuffer(indices, 2, Mesh::IndexType::UnsignedShort);
MAGNUM_VERIFY_NO_ERROR();
const auto value = MultiChecker(MultipleShader{}, mesh).get<Color4ub>(PixelFormat::RGBA, PixelType::UnsignedByte);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(value, indexedResult);
}
#endif
}}
CORRADE_TEST_MAIN(Magnum::Test::MeshGLTest)