nCine::GLViewport class
#include <nCine/Graphics/GL/GLViewport.h>

Manages the OpenGL viewport rectangle.

Static wrapper that caches the current viewport rectangle (set with glViewport) so that redundant OpenGL calls are skipped when the requested rectangle matches the cached one.

Public types

struct State: Holds the cached viewport state.

Public static functions

static auto GetRect() -> Recti: Returns the current viewport rectangle.
static void SetRect(const Recti& rect): Sets the viewport rectangle.
static void SetRect(GLint x, GLint y, GLsizei width, GLsizei height): Sets the viewport rectangle.
static auto GetState() -> State: Returns the whole cached viewport state.
static void SetState(State newState): Restores the whole viewport state.

Constructors, destructors, conversion operators

GLViewport() deleted
~GLViewport() deleted

Function documentation

static void nCine::GLViewport::SetRect(const Recti& rect)

Sets the viewport rectangle.

Parameters
rect	Viewport rectangle

static void nCine::GLViewport::SetRect(GLint x, GLint y, GLsizei width, GLsizei height)