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 Create flags.
static int	NVG_DEBUG Create flags.
static int	NVG_IMAGE_NODELETE These are additional flags on top of NVGimageFlags.
static int	NVG_STENCIL_STROKES Create flags.

Method Summary

Modifier and Type	Method and Description
static long	nnvgCreate(int flags) Unsafe version of: Create
static void	nnvgDelete(long ctx) Unsafe version of: Delete
static int	nnvglCreateImageFromHandle(long ctx, int textureId, int w, int h, int flags) Unsafe version of: lCreateImageFromHandle
static int	nnvglImageHandle(long ctx, int image) Unsafe version of: lImageHandle
static void	nnvgluBindFramebuffer(long ctx, long fb) Unsafe version of: luBindFramebuffer
static long	nnvgluCreateFramebuffer(long ctx, int w, int h, int imageFlags) Unsafe version of: luCreateFramebuffer
static void	nnvgluDeleteFramebuffer(long ctx, long fb) Unsafe version of: luDeleteFramebuffer
static long	nvgCreate(int flags) Creates a NanoVG context with an OpenGL ES 2.0 rendering back-end.
static void	nvgDelete(long ctx) Deletes a NanoVG context created with Create.
static int	nvglCreateImageFromHandle(long ctx, int textureId, int w, int h, int flags) Creates a NanoVG image from an OpenGL texture.
static int	nvglImageHandle(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

Create flags.

Enum values:

• ANTIALIAS - Flag indicating if geometry based anti-aliasing is used (may not be needed when using MSAA).
• 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.
• DEBUG - Flag indicating that additional debug checks are done.

See Also:

Constant Field Values

NVG_STENCIL_STROKES

public static final int NVG_STENCIL_STROKES

Create flags.

Enum values:

• ANTIALIAS - Flag indicating if geometry based anti-aliasing is used (may not be needed when using MSAA).
• 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.
• DEBUG - Flag indicating that additional debug checks are done.

See Also:

Constant Field Values

NVG_DEBUG

public static final int NVG_DEBUG

Create flags.

Enum values:

• ANTIALIAS - Flag indicating if geometry based anti-aliasing is used (may not be needed when using MSAA).
• 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.
• DEBUG - Flag indicating that additional debug checks are done.

See Also:

Constant Field Values

NVG_IMAGE_NODELETE

public static final int NVG_IMAGE_NODELETE

These are additional flags on top of NVGimageFlags.

Enum values:

• IMAGE_NODELETE - Do not delete GL texture handle.

See Also:

Constant Field Values

Method Detail

nnvglCreateImageFromHandle

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

Unsafe version of: lCreateImageFromHandle

nvglCreateImageFromHandle

public static int nvglCreateImageFromHandle(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

Returns:

a handle to the image

nnvglImageHandle

public static int nnvglImageHandle(long ctx,
                                   int image)

Unsafe version of: lImageHandle

nvglImageHandle

public static int nvglImageHandle(long ctx,
                                  int image)

Returns the OpenGL texture id associated with a NanoVG image.

Parameters:

ctx - the NanoVG context

image - the image handle

nnvgCreate

public static long nnvgCreate(int flags)

Unsafe version of: Create

nvgCreate

public static long nvgCreate(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

nnvgDelete

public static void nnvgDelete(long ctx)

Unsafe version of: Delete

nvgDelete

public static void nvgDelete(long ctx)

Deletes a NanoVG context created with Create.

Parameters:

ctx - the NanoVG context

nnvgluCreateFramebuffer

public static long nnvgluCreateFramebuffer(long ctx,
                                           int w,
                                           int h,
                                           int imageFlags)

Unsafe version of: luCreateFramebuffer

nvgluCreateFramebuffer

@Nullable
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

nnvgluBindFramebuffer

public static void nnvgluBindFramebuffer(long ctx,
                                         long fb)

Unsafe version of: luBindFramebuffer

nvgluBindFramebuffer

public static void nvgluBindFramebuffer(long ctx,
                                        @Nullable
                                        NVGLUFramebuffer fb)

Binds the framebuffer object associated with the specified NVGLUFramebuffer.

Parameters:

ctx - the NanoVG context

fb - the framebuffer to bind

nnvgluDeleteFramebuffer

public static void nnvgluDeleteFramebuffer(long ctx,
                                           long fb)

Unsafe version of: luDeleteFramebuffer

nvgluDeleteFramebuffer

public static void nvgluDeleteFramebuffer(long ctx,
                                          NVGLUFramebuffer fb)

Deletes an NVGLUFramebuffer.

Parameters:

ctx - the NanoVG context

fb - the framebuffer to delete