void FramebufferGLTest::attachCubeMapTexture() {
#ifndef MAGNUM_TARGET_GLES
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::framebuffer_object>())
CORRADE_SKIP(Extensions::GL::ARB::framebuffer_object::string() + std::string(" is not available."));
#endif
Framebuffer framebuffer({{}, Vector2i(128)});
CubeMapTexture color;
#ifndef MAGNUM_TARGET_GLES2
color.setStorage(1, TextureFormat::RGBA8, Vector2i(128));
#else
color.setStorage(1, TextureFormat::RGBA, Vector2i(128));
#endif
framebuffer.attachCubeMapTexture(Framebuffer::ColorAttachment(0), color, CubeMapTexture::Coordinate::NegativeZ, 0);
CubeMapTexture depthStencil;
#ifdef MAGNUM_TARGET_GLES2
if(Context::current()->isExtensionSupported<Extensions::GL::OES::packed_depth_stencil>())
#endif
{
#ifdef MAGNUM_TARGET_GLES2
Debug() << "Using" << Extensions::GL::OES::packed_depth_stencil::string();
#endif
#ifndef MAGNUM_TARGET_GLES2
depthStencil.setStorage(1, TextureFormat::Depth24Stencil8, Vector2i(128));
framebuffer.attachCubeMapTexture(Framebuffer::BufferAttachment::DepthStencil, depthStencil, CubeMapTexture::Coordinate::NegativeZ, 0);
#else
depthStencil.setStorage(1, TextureFormat::DepthStencil, Vector2i(128));
framebuffer.attachCubeMapTexture(Framebuffer::BufferAttachment::Depth, depthStencil, CubeMapTexture::Coordinate::NegativeZ, 0)
.attachCubeMapTexture(Framebuffer::BufferAttachment::Stencil, depthStencil, CubeMapTexture::Coordinate::NegativeZ, 0);
#endif
}
#ifdef MAGNUM_TARGET_GLES2
else if(Context::current()->isExtensionSupported<Extensions::GL::OES::depth_texture>()) {
Debug() << "Using" << Extensions::GL::OES::depth_texture::string();
depthStencil.setStorage(1, TextureFormat::DepthComponent16, Vector2i(128));
framebuffer.attachCubeMapTexture(Framebuffer::BufferAttachment::Depth, depthStencil, CubeMapTexture::Coordinate::NegativeZ, 0);
}
#endif
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(framebuffer.checkStatus(FramebufferTarget::ReadDraw), Framebuffer::Status::Complete);
}
void CubeMapTextureGLTest::invalidateSubImage() {
CubeMapTexture texture;
texture.setStorage(2, TextureFormat::RGBA8, Vector2i(32));
texture.invalidateSubImage(1, Vector3i(2), Vector3i(Vector2i(8), 4));
MAGNUM_VERIFY_NO_ERROR();
}
void CubeMapTextureGLTest::imageFullBuffer() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::direct_state_access>())
CORRADE_SKIP(Extensions::GL::ARB::direct_state_access::string() + std::string(" is not supported."));
CubeMapTexture texture;
texture.setStorage(1, TextureFormat::RGBA8, Vector2i{2})
.setSubImage(0, {}, BufferImage3D{ColorFormat::RGBA, ColorType::UnsignedByte, Vector3i{2, 2, 6}, DataFull, BufferUsage::StaticDraw});
MAGNUM_VERIFY_NO_ERROR();
BufferImage3D image = texture.image(0, {ColorFormat::RGBA, ColorType::UnsignedByte}, BufferUsage::StaticRead);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(image.size(), Vector3i(2, 2, 6));
const auto imageData = image.buffer().data<UnsignedByte>();
CORRADE_COMPARE_AS(imageData, Containers::ArrayReference<const UnsignedByte>{DataFull}, TestSuite::Compare::Container);
}
void CubeMapTextureGLTest::imageFull() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::direct_state_access>())
CORRADE_SKIP(Extensions::GL::ARB::direct_state_access::string() + std::string(" is not supported."));
CubeMapTexture texture;
texture.setStorage(1, TextureFormat::RGBA8, Vector2i{2, 2})
.setSubImage(0, {}, ImageReference3D{ColorFormat::RGBA, ColorType::UnsignedByte, Vector3i{2, 2, 6}, DataFull});
MAGNUM_VERIFY_NO_ERROR();
Image3D image = texture.image(0, {ColorFormat::RGBA, ColorType::UnsignedByte});
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(image.size(), Vector3i(2, 2, 6));
CORRADE_COMPARE_AS(
Containers::ArrayReference<const UnsignedByte>(image.data<UnsignedByte>(), image.pixelSize()*image.size().product()),
Containers::ArrayReference<const UnsignedByte>{DataFull}, TestSuite::Compare::Container);
}
void CubeMapTextureGLTest::subImageQueryBuffer() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::get_texture_sub_image>())
CORRADE_SKIP(Extensions::GL::ARB::get_texture_sub_image::string() + std::string(" is not supported."));
/* I'm too lazy to call setSubImage() six times */
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::direct_state_access>())
CORRADE_SKIP(Extensions::GL::ARB::direct_state_access::string() + std::string(" is not supported."));
CubeMapTexture texture;
texture.setStorage(1, TextureFormat::RGBA8, Vector2i{4})
.setSubImage(0, {}, ImageReference3D{ColorFormat::RGBA, ColorType::UnsignedByte, {4, 4, 1}, SubDataComplete});
MAGNUM_VERIFY_NO_ERROR();
BufferImage3D image = texture.subImage(0, Range3Di::fromSize({1, 1, 0}, {2, 2, 1}), {ColorFormat::RGBA, ColorType::UnsignedByte}, BufferUsage::StaticRead);
const auto imageData = image.buffer().data<UnsignedByte>();
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(image.size(), Vector3i(2, 2, 1));
CORRADE_COMPARE_AS(imageData, Containers::ArrayReference<const UnsignedByte>{Data}, TestSuite::Compare::Container);
}
void CubeMapTextureGLTest::storage() {
CubeMapTexture texture;
texture.setStorage(5, TextureFormat::RGBA8, Vector2i(32));
MAGNUM_VERIFY_NO_ERROR();
#ifndef MAGNUM_TARGET_GLES2
#ifdef MAGNUM_TARGET_GLES
if(!Context::current()->isVersionSupported(Version::GLES310))
CORRADE_SKIP("OpenGL ES 3.1 not supported, skipping image size testing");
#endif
CORRADE_COMPARE(texture.imageSize(0), Vector2i(32));
CORRADE_COMPARE(texture.imageSize(1), Vector2i(16));
CORRADE_COMPARE(texture.imageSize(2), Vector2i(8));
CORRADE_COMPARE(texture.imageSize(3), Vector2i(4));
CORRADE_COMPARE(texture.imageSize(4), Vector2i(2));
/* Not available */
CORRADE_COMPARE(texture.imageSize(5), Vector2i(0));
MAGNUM_VERIFY_NO_ERROR();
#endif
}
CubeMap::CubeMap(const std::string& prefix, Object3D* parent, SceneGraph::DrawableGroup3D<>* group): Object3D(parent), SceneGraph::Drawable3D<>(this, group) {
CubeMapResourceManager* resourceManager = CubeMapResourceManager::instance();
/* Cube mesh */
if(!(cube = resourceManager->get<Mesh>("cube"))) {
Mesh* mesh = new Mesh;
Buffer* buffer = new Buffer;
Buffer* indexBuffer = new Buffer;
Trade::MeshData3D cubeData = Primitives::Cube::solid();
MeshTools::flipFaceWinding(*cubeData.indices());
MeshTools::compressIndices(mesh, indexBuffer, Buffer::Usage::StaticDraw, *cubeData.indices());
MeshTools::interleave(mesh, buffer, Buffer::Usage::StaticDraw, *cubeData.positions(0));
mesh->setPrimitive(cubeData.primitive())
->addVertexBuffer(buffer, 0, CubeMapShader::Position());
resourceManager->set("cube-buffer", buffer, ResourceDataState::Final, ResourcePolicy::Resident);
resourceManager->set("cube-index-buffer", indexBuffer, ResourceDataState::Final, ResourcePolicy::Resident);
resourceManager->set(cube.key(), mesh, ResourceDataState::Final, ResourcePolicy::Resident);
}
/* Cube map texture */
if(!(texture = resourceManager->get<CubeMapTexture>("texture"))) {
CubeMapTexture* cubeMap = new CubeMapTexture;
cubeMap->setWrapping(CubeMapTexture::Wrapping::ClampToEdge)
->setMagnificationFilter(CubeMapTexture::Filter::Linear)
->setMinificationFilter(CubeMapTexture::Filter::Linear, CubeMapTexture::Mipmap::Linear);
Resource<Trade::AbstractImporter> importer = resourceManager->get<Trade::AbstractImporter>("tga-importer");
/* Configure texture storage using size of first image */
importer->openFile(prefix + "+x.tga");
Trade::ImageData2D* image = importer->image2D(0);
Vector2i size = image->size();
cubeMap->setStorage(Math::log2(size.min())+1, CubeMapTexture::InternalFormat::RGB8, size);
cubeMap->setSubImage(CubeMapTexture::PositiveX, 0, {}, image);
delete image;
importer->openFile(prefix + "-x.tga");
image = importer->image2D(0);
cubeMap->setSubImage(CubeMapTexture::NegativeX, 0, {}, image);
delete image;
importer->openFile(prefix + "+y.tga");
image = importer->image2D(0);
cubeMap->setSubImage(CubeMapTexture::PositiveY, 0, {}, image);
delete image;
importer->openFile(prefix + "-y.tga");
image = importer->image2D(0);
cubeMap->setSubImage(CubeMapTexture::NegativeY, 0, {}, image);
delete image;
importer->openFile(prefix + "+z.tga");
image = importer->image2D(0);
cubeMap->setSubImage(CubeMapTexture::PositiveZ, 0, {}, image);
delete image;
importer->openFile(prefix + "-z.tga");
image = importer->image2D(0);
cubeMap->setSubImage(CubeMapTexture::NegativeZ, 0, {}, image);
delete image;
cubeMap->generateMipmap();
resourceManager->set(texture.key(), cubeMap, ResourceDataState::Final, ResourcePolicy::Manual);
}
/* Shader */
if(!(shader = resourceManager->get<AbstractShaderProgram, CubeMapShader>("shader")))
resourceManager->set<AbstractShaderProgram>(shader.key(), new CubeMapShader, ResourceDataState::Final, ResourcePolicy::Manual);
}