void TextureGLTest::subImageBuffer() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_rectangle>())
CORRADE_SKIP(Extensions::GL::ARB::texture_rectangle::string() + std::string(" is not supported."));
constexpr UnsignedByte zero[4*4*4] = {};
constexpr UnsignedByte subData[] = { 0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f };
RectangleTexture texture;
texture.setImage(TextureFormat::RGBA8,
ImageReference2D(ColorFormat::RGBA, ColorType::UnsignedByte, Vector2i(4), zero));
texture.setSubImage(Vector2i(1),
BufferImage2D(ColorFormat::RGBA, ColorType::UnsignedByte, Vector2i(2), subData, BufferUsage::StaticDraw));
MAGNUM_VERIFY_NO_ERROR();
BufferImage2D image(ColorFormat::RGBA, ColorType::UnsignedByte);
texture.image(image, BufferUsage::StaticRead);
const auto imageData = image.buffer().data<UnsignedByte>();
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(image.size(), Vector2i(4));
CORRADE_COMPARE_AS(std::vector<UnsignedByte>(imageData.begin(), imageData.end()), (std::vector<UnsignedByte>{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0, 0, 0, 0,
0, 0, 0, 0, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}), TestSuite::Compare::Container);
}
void TextureGLTest::invalidateSubImage() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_rectangle>())
CORRADE_SKIP(Extensions::GL::ARB::texture_rectangle::string() + std::string(" is not supported."));
RectangleTexture texture;
texture.setStorage(TextureFormat::RGBA8, Vector2i(32));
texture.invalidateSubImage(Vector2i(4), Vector2i(16));
MAGNUM_VERIFY_NO_ERROR();
}
void TextureGLTest::sampling() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_rectangle>())
CORRADE_SKIP(Extensions::GL::ARB::texture_rectangle::string() + std::string(" is not supported."));
RectangleTexture texture;
texture.setMinificationFilter(Sampler::Filter::Linear)
.setMagnificationFilter(Sampler::Filter::Linear)
.setWrapping(Sampler::Wrapping::ClampToBorder)
.setBorderColor(Color3(0.5f))
.setMaxAnisotropy(Sampler::maxMaxAnisotropy());
MAGNUM_VERIFY_NO_ERROR();
}
void TextureGLTest::construct() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_rectangle>())
CORRADE_SKIP(Extensions::GL::ARB::texture_rectangle::string() + std::string(" is not supported."));
{
RectangleTexture texture;
MAGNUM_VERIFY_NO_ERROR();
CORRADE_VERIFY(texture.id() > 0);
}
MAGNUM_VERIFY_NO_ERROR();
}
void FramebufferGLTest::attachRectangleTexture() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::framebuffer_object>())
CORRADE_SKIP(Extensions::GL::ARB::framebuffer_object::string() + std::string(" is not available."));
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_rectangle>())
CORRADE_SKIP(Extensions::GL::ARB::texture_rectangle::string() + std::string(" is not available."));
RectangleTexture color;
color.setStorage(TextureFormat::RGBA8, Vector2i(128));
RectangleTexture depthStencil;
depthStencil.setStorage(TextureFormat::Depth24Stencil8, Vector2i(128));
Framebuffer framebuffer({{}, Vector2i(128)});
framebuffer.attachTexture(Framebuffer::ColorAttachment(0), color, 0)
.attachTexture(Framebuffer::BufferAttachment::DepthStencil, depthStencil, 0);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(framebuffer.checkStatus(FramebufferTarget::ReadDraw), Framebuffer::Status::Complete);
}
void TextureGLTest::image() {
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_rectangle>())
CORRADE_SKIP(Extensions::GL::ARB::texture_rectangle::string() + std::string(" is not supported."));
constexpr UnsignedByte data[] = { 0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f };
RectangleTexture texture;
texture.setImage(TextureFormat::RGBA8,
ImageReference2D(ColorFormat::RGBA, ColorType::UnsignedByte, Vector2i(2), data));
MAGNUM_VERIFY_NO_ERROR();
Image2D image(ColorFormat::RGBA, ColorType::UnsignedByte);
texture.image(image);
MAGNUM_VERIFY_NO_ERROR();
CORRADE_COMPARE(image.size(), Vector2i(2));
CORRADE_COMPARE_AS(std::vector<UnsignedByte>(image.data(), image.data()+image.pixelSize()*image.size().product()),
std::vector<UnsignedByte>(data, data + 16), TestSuite::Compare::Container);
}
