Package org.lwjgl.nanovg

Class NanoVGGLES2

java.lang.Object

org.lwjgl.nanovg.NanoVGGLES2

public class NanoVGGLES2
extends java.lang.Object

Implementation of the NanoVG API using OpenGL ES 2.0.

Field Summary

Fields

Modifier and Type	Field and Description
static int	NVG_ANTIALIAS Flag indicating if geometry based anti-aliasing is used (may not be needed when using MSAA).
static int	NVG_DEBUG Flag indicating that additional debug checks are done.
static int	NVG_IMAGE_NODELETE Do not delete GL texture handle.
static int	NVG_STENCIL_STROKES Flag indicating if strokes should be drawn using stencil buffer.

Method Summary

Modifier and Type	Method and Description
static long	nvgCreateGLES2(int flags) Creates a NanoVG context with an OpenGL ES 2.0 rendering back-end.
static void	nvgDeleteGLES2(long ctx) Deletes a NanoVG context created with CreateGLES2.
static int	nvglCreateImageFromHandleGLES2(long ctx, int textureId, int w, int h, int flags) Creates a NanoVG image from an OpenGL texture.
static int	nvglImageHandleGLES2(long ctx, int image) Returns the OpenGL texture id associated with a NanoVG image.
static void	nvgluBindFramebuffer(long ctx, NVGLUFramebuffer fb) Binds the framebuffer object associated with the specified NVGLUFramebuffer.
static NVGLUFramebuffer	nvgluCreateFramebuffer(long ctx, int w, int h, int imageFlags) Creates a framebuffer object to render to.
static void	nvgluDeleteFramebuffer(long ctx, NVGLUFramebuffer fb) Deletes an NVGLUFramebuffer.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NVG_ANTIALIAS

public static final int NVG_ANTIALIAS

Flag indicating if geometry based anti-aliasing is used (may not be needed when using MSAA).

See Also:

Constant Field Values

NVG_STENCIL_STROKES

public static final int NVG_STENCIL_STROKES

Flag indicating if strokes should be drawn using stencil buffer. The rendering will be a little slower, but path overlaps (i.e. self-intersecting or sharp turns) will be drawn just once.

See Also:

Constant Field Values

NVG_DEBUG

public static final int NVG_DEBUG

Flag indicating that additional debug checks are done.

See Also:

Constant Field Values

NVG_IMAGE_NODELETE

public static final int NVG_IMAGE_NODELETE

Do not delete GL texture handle.

See Also:

Constant Field Values

Method Detail

nvglCreateImageFromHandleGLES2

public static int nvglCreateImageFromHandleGLES2(long ctx,
                                                 int textureId,
                                                 int w,
                                                 int h,
                                                 int flags)

Creates a NanoVG image from an OpenGL texture.

Parameters:

ctx - the NanoVG context

textureId - the OpenGL texture id

w - the image width

h - the image height

flags - the image flags

nvglImageHandleGLES2

public static int nvglImageHandleGLES2(long ctx,
                                       int image)

Returns the OpenGL texture id associated with a NanoVG image.

Parameters:

ctx - the NanoVG context

image - the image handle

nvgCreateGLES2

public static long nvgCreateGLES2(int flags)

Creates a NanoVG context with an OpenGL ES 2.0 rendering back-end.

An OpenGL ES 2.0+ context must be current in the current thread when this function is called and the returned NanoVG context may only be used in the thread in which that OpenGL context is current.

Parameters:

flags - the context flags. One of:

ANTIALIAS

STENCIL_STROKES

DEBUG

nvgDeleteGLES2

public static void nvgDeleteGLES2(long ctx)

Deletes a NanoVG context created with CreateGLES2.

Parameters:

ctx - the NanoVG context

nvgluCreateFramebuffer

public static NVGLUFramebuffer nvgluCreateFramebuffer(long ctx,
                                                      int w,
                                                      int h,
                                                      int imageFlags)

Creates a framebuffer object to render to.

Parameters:

ctx - the NanoVG context

w - the framebuffer width

h - the framebuffer height

imageFlags - the image flags

nvgluBindFramebuffer

public static void nvgluBindFramebuffer(long ctx,
                                        NVGLUFramebuffer fb)

Binds the framebuffer object associated with the specified NVGLUFramebuffer.

Parameters:

ctx - the NanoVG context

fb - the framebuffer to bind

nvgluDeleteFramebuffer

public static void nvgluDeleteFramebuffer(long ctx,
                                          NVGLUFramebuffer fb)

Deletes an NVGLUFramebuffer.

Parameters:

ctx - the NanoVG context

fb - the framebuffer to delete