Example(GLuint width, GLuint height)
: log_sink(
[](const oglplus::ARB_debug_output::CallbackData& data) -> void
{
std::cout << "[" << data.id << "] '" <<
data.message << "'" << std::endl;
std::cout << " [source] '" <<
oglplus::EnumValueName(data.source) << "'" <<
std::endl;
std::cout << " [type] '" <<
oglplus::EnumValueName(data.type) << "'" <<
std::endl;
std::cout << " [severity] '" <<
oglplus::EnumValueName(data.severity) << "'" <<
std::endl;
}
)
{
using namespace oglplus;
dbg.Control(
DebugOutputARBSource::DontCare,
DebugOutputARBType::DontCare,
DebugOutputARBSeverity::Low,
true
);
gl.ClearColor(1.0f, 1.0f, 1.0f, 0.0f);
gl.Viewport(width, height);
glc.MatrixMode(CompatibilityMatrixMode::Projection);
glc.LoadIdentity();
glc.MatrixMode(CompatibilityMatrixMode::Modelview);
glc.LoadIdentity();
}
void Render() {
using namespace oglplus;
gl.Clear().ColorBuffer().StencilBuffer();
glc.Color(0.2, 0.2, 1.0);
text_path.StencilFillInstanced(
glyph_indices,
PathNVFillMode::CountUp,
0xFF,
PathNVTransformType::TranslateX,
glyph_spacings);
text_path.CoverFillInstanced(
glyph_indices,
PathNVFillCoverMode::BoundingBoxOfBoundingBoxes,
PathNVTransformType::TranslateX,
glyph_spacings);
glc.Color(0.0, 0.0, 0.0);
text_path.StencilStrokeInstanced(
glyph_indices,
1,
~0,
PathNVTransformType::TranslateX,
glyph_spacings);
text_path.CoverStrokeInstanced(
glyph_indices,
PathNVStrokeCoverMode::ConvexHull,
PathNVTransformType::TranslateX,
glyph_spacings);
}
PathExample(int, const char**)
{
using namespace oglplus;
PathNVCommand commands[] = {
PathNVCommand::MoveTo,
PathNVCommand::LineTo,
PathNVCommand::LineTo,
PathNVCommand::LineTo,
PathNVCommand::LineTo,
PathNVCommand::Close
};
GLfloat coords[] = {
0.00, 0.85,
0.65,-0.80,
-0.85, 0.30,
0.85, 0.30,
-0.65,-0.80
};
path.Commands(
sizeof(commands)/sizeof(commands[0]),
commands,
sizeof(coords)/sizeof(coords[0]),
coords
);
path.StrokeWidth(0.01);
path.JoinStyle(PathNVJoinStyle::Round);
GLfloat dash_array[] = {0.05, 0.02};
path.DashArray(
sizeof(dash_array)/sizeof(dash_array[0]),
dash_array
);
glc.MatrixMode(CompatibilityMatrixMode::Projection);
glc.LoadIdentity();
glc.MatrixMode(CompatibilityMatrixMode::Modelview);
glc.LoadIdentity();
gl.ClearColor(1.0f, 1.0f, 1.0f, 0.0f);
gl.ClearStencil(0);
gl.StencilMask(~0);
gl.StencilFunc(CompareFunction::NotEqual, 0, 0x1F);
gl.StencilOp(
StencilOperation::Keep,
StencilOperation::Keep,
StencilOperation::Zero
);
gl.Enable(Capability::StencilTest);
}
void Render(void)
{
using namespace oglplus;
gl.Clear().ColorBuffer().StencilBuffer();
glc.Color(0.2, 0.2, 1.0);
path.StencilFill(PathNVFillMode::CountUp, 0x1F);
path.CoverFill(PathNVFillCoverMode::BoundingBox);
glc.Color(0.1, 0.1, 0.1);
path.StencilStroke(1, ~0);
path.CoverStroke(PathNVStrokeCoverMode::ConvexHull);
}
void Display(void)
{
using namespace oglplus;
gl.Clear().ColorBuffer();
glc.Begin(CompatibilityPrimitiveType::Triangles);
glc.Color(1.0, 0.0, 0.0);
glc.Vertex(0.0f, 0.0f);
glc.Color(0.0, 1.0, 0.0);
glc.Vertex(1.0f, 0.0f);
glc.Color(0.0, 0.0, 1.0);
glc.Vertex(0.0f, 1.0f);
glc.End();
}