Package io.github.humbleui.skija

Class Surface

  • All Implemented Interfaces:
    java.lang.AutoCloseable
    public class Surface
extends RefCnt

    • Constructor Detail

      • Surface

        @Internal
public Surface​(long ptr)

      • Surface

        @Internal
public Surface​(long ptr,
               DirectContext context)

    • Method Detail

      • wrapPixels

        @NotNull
@Contract("_, _, _ -> new")
public static @NotNull Surface wrapPixels​(@NotNull
                                          @NotNull ImageInfo imageInfo,
                                          long pixelsPtr,
                                          long rowBytes)

        Allocates raster Surface. Canvas returned by Surface draws directly into pixels.

        Surface is returned if all parameters are valid. Valid parameters include:

        • info dimensions are greater than zero;
        • info contains ColorType and AlphaType supported by raster surface;
        • pixelsPtr is not 0;
        • rowBytes is large enough to contain info width pixels of ColorType.

        Pixel buffer size should be info height times computed rowBytes.

        Pixels are not initialized.

        To access pixels after drawing, peekPixels() or readPixels().

        Parameters:
        imageInfo - width, height, ColorType, AlphaType, ColorSpace, of raster surface; width and height must be greater than zero
        pixelsPtr - pointer to destination pixels buffer
        rowBytes - memory address of destination native pixels buffer
        Returns:
        created Surface

      • wrapPixels

        @NotNull
@Contract("_, _, _, _ -> new")
public static @NotNull Surface wrapPixels​(@NotNull
                                          @NotNull ImageInfo imageInfo,
                                          long pixelsPtr,
                                          long rowBytes,
                                          @Nullable
                                          @Nullable SurfaceProps surfaceProps)

        Allocates raster Surface. Canvas returned by Surface draws directly into pixels.

        Surface is returned if all parameters are valid. Valid parameters include:

        • info dimensions are greater than zero;
        • info contains ColorType and AlphaType supported by raster surface;
        • pixelsPtr is not 0;
        • rowBytes is large enough to contain info width pixels of ColorType.

        Pixel buffer size should be info height times computed rowBytes.

        Pixels are not initialized.

        To access pixels after drawing, peekPixels() or readPixels().

        Parameters:
        imageInfo - width, height, ColorType, AlphaType, ColorSpace, of raster surface; width and height must be greater than zero
        pixelsPtr - pointer to destination pixels buffer
        rowBytes - memory address of destination native pixels buffer
        surfaceProps - LCD striping orientation and setting for device independent fonts; may be null
        Returns:
        created Surface

      • wrapPixels

        @NotNull
@Contract("_ -> new")
public static @NotNull Surface wrapPixels​(@NotNull
                                          @NotNull Pixmap pixmap)

      • wrapPixels

        @NotNull
@Contract("_, _ -> new")
public static @NotNull Surface wrapPixels​(@NotNull
                                          @NotNull Pixmap pixmap,
                                          @Nullable
                                          @Nullable SurfaceProps surfaceProps)

      • makeRaster

        @NotNull
@Contract("_, _, _ -> new")
public static @NotNull Surface makeRaster​(@NotNull
                                          @NotNull ImageInfo imageInfo)

        Allocates raster Surface. Canvas returned by Surface draws directly into pixels. Allocates and zeroes pixel memory. Pixel memory size is imageInfo.height() times imageInfo.minRowBytes(). Pixel memory is deleted when Surface is deleted.

        Surface is returned if all parameters are valid. Valid parameters include:

        • info dimensions are greater than zero;
        • info contains ColorType and AlphaType supported by raster surface;
        Parameters:
        imageInfo - width, height, ColorType, AlphaType, ColorSpace, of raster surface; width and height must be greater than zero
        Returns:
        new Surface

      • makeRaster

        @NotNull
@Contract("_, _, _ -> new")
public static @NotNull Surface makeRaster​(@NotNull
                                          @NotNull ImageInfo imageInfo,
                                          long rowBytes)

        Allocates raster Surface. Canvas returned by Surface draws directly into pixels. Allocates and zeroes pixel memory. Pixel memory size is imageInfo.height() times rowBytes, or times imageInfo.minRowBytes() if rowBytes is zero. Pixel memory is deleted when Surface is deleted.

        Surface is returned if all parameters are valid. Valid parameters include:

        • info dimensions are greater than zero;
        • info contains ColorType and AlphaType supported by raster surface;
        • rowBytes is large enough to contain info width pixels of ColorType, or is zero.

        If rowBytes is zero, a suitable value will be chosen internally.

        Parameters:
        imageInfo - width, height, ColorType, AlphaType, ColorSpace, of raster surface; width and height must be greater than zero
        rowBytes - interval from one Surface row to the next; may be zero
        Returns:
        new Surface

      • makeRaster

        @NotNull
@Contract("_, _, _ -> new")
public static @NotNull Surface makeRaster​(@NotNull
                                          @NotNull ImageInfo imageInfo,
                                          long rowBytes,
                                          @Nullable
                                          @Nullable SurfaceProps surfaceProps)

        Allocates raster Surface. Canvas returned by Surface draws directly into pixels. Allocates and zeroes pixel memory. Pixel memory size is imageInfo.height() times rowBytes, or times imageInfo.minRowBytes() if rowBytes is zero. Pixel memory is deleted when Surface is deleted.

        Surface is returned if all parameters are valid. Valid parameters include:

        • info dimensions are greater than zero;
        • info contains ColorType and AlphaType supported by raster surface;
        • rowBytes is large enough to contain info width pixels of ColorType, or is zero.

        If rowBytes is zero, a suitable value will be chosen internally.

        Parameters:
        imageInfo - width, height, ColorType, AlphaType, ColorSpace, of raster surface; width and height must be greater than zero
        rowBytes - interval from one Surface row to the next; may be zero
        surfaceProps - LCD striping orientation and setting for device independent fonts; may be null
        Returns:
        new Surface

      • wrapBackendRenderTarget

        @NotNull
public static @NotNull Surface wrapBackendRenderTarget​(@NotNull
                                                       @NotNull DirectContext context,
                                                       @NotNull
                                                       @NotNull BackendRenderTarget rt,
                                                       @NotNull
                                                       @NotNull SurfaceOrigin origin,
                                                       @NotNull
                                                       @NotNull SurfaceColorFormat colorFormat,
                                                       @Nullable
                                                       @Nullable ColorSpace colorSpace)

        Wraps a GPU-backed buffer into Surface.

        Caller must ensure backendRenderTarget is valid for the lifetime of returned Surface.

        Surface is returned if all parameters are valid. backendRenderTarget is valid if its pixel configuration agrees with colorSpace and context; for instance, if backendRenderTarget has an sRGB configuration, then context must support sRGB, and colorSpace must be present. Further, backendRenderTarget width and height must not exceed context capabilities, and the context must be able to support back-end render targets.

        Parameters:
        context - GPU context
        rt - texture residing on GPU
        origin - surfaceOrigin pins either the top-left or the bottom-left corner to the origin.
        colorFormat - color format
        colorSpace - range of colors; may be null
        Returns:
        Surface if all parameters are valid; otherwise, null
        See Also:
        https://fiddle.skia.org/c/@Surface_MakeFromBackendTexture

      • wrapBackendRenderTarget

        @NotNull
public static @NotNull Surface wrapBackendRenderTarget​(@NotNull
                                                       @NotNull DirectContext context,
                                                       @NotNull
                                                       @NotNull BackendRenderTarget rt,
                                                       @NotNull
                                                       @NotNull SurfaceOrigin origin,
                                                       @NotNull
                                                       @NotNull SurfaceColorFormat colorFormat,
                                                       @Nullable
                                                       @Nullable ColorSpace colorSpace,
                                                       @Nullable
                                                       @Nullable SurfaceProps surfaceProps)

        Wraps a GPU-backed buffer into Surface.

        Caller must ensure backendRenderTarget is valid for the lifetime of returned Surface.

        Surface is returned if all parameters are valid. backendRenderTarget is valid if its pixel configuration agrees with colorSpace and context; for instance, if backendRenderTarget has an sRGB configuration, then context must support sRGB, and colorSpace must be present. Further, backendRenderTarget width and height must not exceed context capabilities, and the context must be able to support back-end render targets.

        Parameters:
        context - GPU context
        rt - texture residing on GPU
        origin - surfaceOrigin pins either the top-left or the bottom-left corner to the origin.
        colorFormat - color format
        colorSpace - range of colors; may be null
        surfaceProps - LCD striping orientation and setting for device independent fonts; may be null
        Returns:
        Surface if all parameters are valid; otherwise, null
        See Also:
        https://fiddle.skia.org/c/@Surface_MakeFromBackendTexture

      • makeRasterN32Premul

        @NotNull
@Deprecated
public static @NotNull Surface makeRasterN32Premul​(int width,
                                                   int height)
        Deprecated.
        - use makeRaster(ImageInfo.makeN32Premul(width, height))

        Allocates raster Surface.

        Canvas returned by Surface draws directly into pixels. Allocates and zeroes pixel memory. Pixel memory size is height times width times four. Pixel memory is deleted when Surface is deleted.

        Internally, sets ImageInfo to width, height, native color type, and ColorAlphaType.PREMUL.

        Surface is returned if width and height are greater than zero.

        Use to create Surface that matches PMColor, the native pixel arrangement on the platform. Surface drawn to output device skips converting its pixel format.

        Parameters:
        width - pixel column count; must be greater than zero
        height - pixel row count; must be greater than zero
        Returns:
        Surface if all parameters are valid; otherwise, null
        See Also:
        https://fiddle.skia.org/c/@Surface_MakeRasterN32Premul

      • makeRenderTarget

        @NotNull
@Contract("_, _, _ -> new")
public static @NotNull Surface makeRenderTarget​(@NotNull
                                                @NotNull DirectContext context,
                                                boolean budgeted,
                                                @NotNull
                                                @NotNull ImageInfo imageInfo)

        Returns Surface on GPU indicated by context. Allocates memory for pixels, based on the width, height, and ColorType in ImageInfo. describes the pixel format in ColorType, and transparency in AlphaType, and color matching in ColorSpace.

        Parameters:
        context - GPU context
        budgeted - selects whether allocation for pixels is tracked by context
        imageInfo - width, height, ColorType, AlphaType, ColorSpace; width, or height, or both, may be zero
        Returns:
        new SkSurface

      • makeRenderTarget

        @NotNull
@Contract("_, _, _, _, _ -> new")
public static @NotNull Surface makeRenderTarget​(@NotNull
                                                @NotNull DirectContext context,
                                                boolean budgeted,
                                                @NotNull
                                                @NotNull ImageInfo imageInfo,
                                                int sampleCount,
                                                @Nullable
                                                @Nullable SurfaceProps surfaceProps)

        Returns Surface on GPU indicated by context. Allocates memory for pixels, based on the width, height, and ColorType in ImageInfo. describes the pixel format in ColorType, and transparency in AlphaType, and color matching in ColorSpace.

        sampleCount requests the number of samples per pixel. Pass zero to disable multi-sample anti-aliasing. The request is rounded up to the next supported count, or rounded down if it is larger than the maximum supported count.

        Parameters:
        context - GPU context
        budgeted - selects whether allocation for pixels is tracked by context
        imageInfo - width, height, ColorType, AlphaType, ColorSpace; width, or height, or both, may be zero
        sampleCount - samples per pixel, or 0 to disable full scene anti-aliasing
        surfaceProps - LCD striping orientation and setting for device independent fonts; may be null
        Returns:
        new SkSurface

      • makeRenderTarget

        @NotNull
@Contract("_, _, _, _, _, _ -> new")
public static @NotNull Surface makeRenderTarget​(@NotNull
                                                @NotNull DirectContext context,
                                                boolean budgeted,
                                                @NotNull
                                                @NotNull ImageInfo imageInfo,
                                                int sampleCount,
                                                @NotNull
                                                @NotNull SurfaceOrigin origin,
                                                @Nullable
                                                @Nullable SurfaceProps surfaceProps)

        Returns Surface on GPU indicated by context. Allocates memory for pixels, based on the width, height, and ColorType in ImageInfo. describes the pixel format in ColorType, and transparency in AlphaType, and color matching in ColorSpace.

        sampleCount requests the number of samples per pixel. Pass zero to disable multi-sample anti-aliasing. The request is rounded up to the next supported count, or rounded down if it is larger than the maximum supported count.

        Parameters:
        context - GPU context
        budgeted - selects whether allocation for pixels is tracked by context
        imageInfo - width, height, ColorType, AlphaType, ColorSpace; width, or height, or both, may be zero
        sampleCount - samples per pixel, or 0 to disable full scene anti-aliasing
        origin - pins either the top-left or the bottom-left corner to the origin.
        surfaceProps - LCD striping orientation and setting for device independent fonts; may be null
        Returns:
        new SkSurface

      • makeRenderTarget

        @NotNull
@Contract("_, _, _, _, _, _, _ -> new")
public static @NotNull Surface makeRenderTarget​(@NotNull
                                                @NotNull DirectContext context,
                                                boolean budgeted,
                                                @NotNull
                                                @NotNull ImageInfo imageInfo,
                                                int sampleCount,
                                                @NotNull
                                                @NotNull SurfaceOrigin origin,
                                                @Nullable
                                                @Nullable SurfaceProps surfaceProps,
                                                boolean shouldCreateWithMips)

        Returns Surface on GPU indicated by context. Allocates memory for pixels, based on the width, height, and ColorType in ImageInfo. describes the pixel format in ColorType, and transparency in AlphaType, and color matching in ColorSpace.

        sampleCount requests the number of samples per pixel. Pass zero to disable multi-sample anti-aliasing. The request is rounded up to the next supported count, or rounded down if it is larger than the maximum supported count.

        shouldCreateWithMips hints that Image returned by makeImageSnapshot() is mip map.

        Parameters:
        context - GPU context
        budgeted - selects whether allocation for pixels is tracked by context
        imageInfo - width, height, ColorType, AlphaType, ColorSpace; width, or height, or both, may be zero
        sampleCount - samples per pixel, or 0 to disable full scene anti-aliasing
        origin - pins either the top-left or the bottom-left corner to the origin.
        surfaceProps - LCD striping orientation and setting for device independent fonts; may be null
        shouldCreateWithMips - hint that SkSurface will host mip map images
        Returns:
        new SkSurface

      • makeNull

        @NotNull
@Contract("_, _ -> new")
public static @NotNull Surface makeNull​(int width,
                                        int height)
        Returns Surface without backing pixels. Drawing to Canvas returned from Surface has no effect. Calling makeImageSnapshot() on returned Surface returns null.
        Parameters:
        width - one or greater
        height - one or greater
        Returns:
        Surface if width and height are positive
        See Also:
        https://fiddle.skia.org/c/@Surface_MakeNull

      • getImageInfo

        @NotNull
public @NotNull ImageInfo getImageInfo()

        Returns an ImageInfo describing the surface.

        Returns:
        ImageInfo describing the surface.

      • getGenerationId

        public int getGenerationId()

        Returns unique value identifying the content of Surface.

        Returned value changes each time the content changes. Content is changed by drawing, or by calling notifyContentWillChange().

        Returns:
        unique content identifier

      • getRecordingContext

        @Nullable
public @Nullable DirectContext getRecordingContext()

        Returns the recording context being used by the Surface.

        Returns:
        the recording context, if available; null otherwise

      • getCanvas

        @NotNull
public @NotNull Canvas getCanvas()

        Returns Canvas that draws into Surface.

        Subsequent calls return the same Canvas. Canvas returned is managed and owned by Surface, and is deleted when Surface is deleted.

        Returns:
        Canvas for Surface

      • makeSurface

        @Nullable
public @Nullable Surface makeSurface​(ImageInfo imageInfo)

        Returns a compatible Surface, or null.

        Returned Surface contains the same raster, GPU, or null properties as the original. Returned Surface does not share the same pixels.

        Returns null if imageInfo width or height are zero, or if imageInfo is incompatible with Surface.

        Parameters:
        imageInfo - contains width, height, AlphaType, ColorType, ColorSpace
        Returns:
        compatible SkSurface or null
        See Also:
        https://fiddle.skia.org/c/@Surface_makeSurface

      • makeSurface

        @Nullable
public @Nullable Surface makeSurface​(int width,
                                     int height)

        Calls makeSurface(ImageInfo) with the same ImageInfo as this surface, but with the specified width and height.

        Returned Surface contains the same raster, GPU, or null properties as the original. Returned Surface does not share the same pixels.

        Returns null if imageInfo width or height are zero, or if imageInfo is incompatible with Surface.

        Parameters:
        width - pixel column count; must be greater than zero
        height - pixel row count; must be greater than zero
        Returns:
        compatible SkSurface or null

      • makeImageSnapshot

        @NotNull
public @NotNull Image makeImageSnapshot()

        Returns Image capturing Surface contents.

        Subsequent drawing to Surface contents are not captured. Image allocation is accounted for if Surface was created with SkBudgeted::kYes.

        Returns:
        Image initialized with Surface contents
        See Also:
        https://fiddle.skia.org/c/@Surface_makeImageSnapshot

      • makeImageSnapshot

        @Nullable
public @Nullable Image makeImageSnapshot​(@NotNull
                                         @NotNull io.github.humbleui.types.IRect area)

        Like the no-parameter version, this returns an image of the current surface contents.

        This variant takes a rectangle specifying the subset of the surface that is of interest. These bounds will be sanitized before being used.

        • If bounds extends beyond the surface, it will be trimmed to just the intersection of it and the surface.
        • If bounds does not intersect the surface, then this returns null.
        • If bounds == the surface, then this is the same as calling the no-parameter variant.
        Returns:
        Image initialized with Surface contents or null
        See Also:
        https://fiddle.skia.org/c/@Surface_makeImageSnapshot_2

      • draw

        public void draw​(Canvas canvas,
                 int x,
                 int y,
                 Paint paint)

        Draws Surface contents to canvas, with its top-left corner at (x, y).

        If Paint paint is not null, apply ColorFilter, alpha, ImageFilter, and BlendMode.

        Parameters:
        canvas - Canvas drawn into
        x - horizontal offset in Canvas
        y - vertical offset in Canvas
        paint - Paint containing BlendMode, ColorFilter, ImageFilter, and so on; or null
        See Also:
        https://fiddle.skia.org/c/@Surface_draw

      • peekPixels

        public boolean peekPixels​(@NotNull
                          @NotNull Pixmap pixmap)

      • readPixels

        public boolean readPixels​(Pixmap pixmap,
                          int srcX,
                          int srcY)

      • readPixels

        public boolean readPixels​(Bitmap bitmap,
                          int srcX,
                          int srcY)

        Copies Rect of pixels from Surface into bitmap.

        Source Rect corners are (srcX, srcY) and Surface (width(), height()). Destination Rect corners are (0, 0) and (bitmap.width(), bitmap.height()). Copies each readable pixel intersecting both rectangles, without scaling, converting to bitmap.colorType() and bitmap.alphaType() if required.

        Pixels are readable when Surface is raster, or backed by a GPU.

        The destination pixel storage must be allocated by the caller.

        Pixel values are converted only if ColorType and AlphaType do not match. Only pixels within both source and destination rectangles are copied. dst contents outside Rect intersection are unchanged.

        Pass negative values for srcX or srcY to offset pixels across or down destination.

        Does not copy, and returns false if:

        • Source and destination rectangles do not intersect.
        • Surface pixels could not be converted to dst.colorType() or dst.alphaType().
        • dst pixels could not be allocated.
        • dst.rowBytes() is too small to contain one row of pixels.
        Parameters:
        bitmap - storage for pixels copied from SkSurface
        srcX - offset into readable pixels on x-axis; may be negative
        srcY - offset into readable pixels on y-axis; may be negative
        Returns:
        true if pixels were copied
        See Also:
        https://fiddle.skia.org/c/@Surface_readPixels_3

      • writePixels

        public void writePixels​(Pixmap pixmap,
                        int x,
                        int y)

      • writePixels

        public void writePixels​(Bitmap bitmap,
                        int x,
                        int y)

        Copies Rect of pixels from the src Bitmap to the Surface.

        Source Rect corners are (0, 0) and (src.width(), src.height()). Destination Rect corners are (dstX, dstY) and (dstX + Surface width(), dstY + Surface height()).

        Copies each readable pixel intersecting both rectangles, without scaling, converting to Surface colorType() and Surface alphaType() if required.

        Parameters:
        bitmap - storage for pixels to copy to Surface
        x - x-axis position relative to Surface to begin copy; may be negative
        y - y-axis position relative to Surface to begin copy; may be negative
        See Also:
        https://fiddle.skia.org/c/@Surface_writePixels_2

      • flushAndSubmit

        public void flushAndSubmit()

        Call to ensure all reads/writes of the surface have been issued to the underlying 3D API.

        Skia will correctly order its own draws and pixel operations. This must to be used to ensure correct ordering when the surface backing store is accessed outside Skia (e.g. direct use of the 3D API or a windowing system). DirectContext has additional flush and submit methods that apply to all surfaces and images created from a DirectContext.

      • flushAndSubmit

        public void flushAndSubmit​(boolean syncCpu)

        Call to ensure all reads/writes of the surface have been issued to the underlying 3D API.

        Skia will correctly order its own draws and pixel operations. This must to be used to ensure correct ordering when the surface backing store is accessed outside Skia (e.g. direct use of the 3D API or a windowing system). DirectContext has additional flush and submit methods that apply to all surfaces and images created from a DirectContext.

        Parameters:
        syncCpu - a flag determining if cpu should be synced

      • flush

        public void flush()

      • isUnique

        public boolean isUnique()

        May return true if the caller is the only owner.

        Ensures that all previous owner's actions are complete.

      • _nWrapPixels

        public static long _nWrapPixels​(int width,
                                int height,
                                int colorType,
                                int alphaType,
                                long colorSpacePtr,
                                long pixelsPtr,
                                long rowBytes,
                                SurfaceProps surfaceProps)

      • _nWrapPixelsPixmap

        public static long _nWrapPixelsPixmap​(long pixmapPtr,
                                      SurfaceProps surfaceProps)

      • _nMakeRaster

        public static long _nMakeRaster​(int width,
                                int height,
                                int colorType,
                                int alphaType,
                                long colorSpacePtr,
                                long rowBytes,
                                SurfaceProps surfaceProps)

      • _nWrapBackendRenderTarget

        public static long _nWrapBackendRenderTarget​(long pContext,
                                             long pBackendRenderTarget,
                                             int surfaceOrigin,
                                             int colorType,
                                             long colorSpacePtr,
                                             SurfaceProps surfaceProps)

      • _nWrapMTKView

        public static long _nWrapMTKView​(long contextPtr,
                                 long mtkViewPtr,
                                 int surfaceOrigin,
                                 int sampleCount,
                                 int colorType,
                                 long colorSpacePtr,
                                 SurfaceProps surfaceProps)

      • _nMakeRenderTarget

        public static long _nMakeRenderTarget​(long contextPtr,
                                      boolean budgeted,
                                      int width,
                                      int height,
                                      int colorType,
                                      int alphaType,
                                      long colorSpacePtr,
                                      int sampleCount,
                                      int surfaceOrigin,
                                      SurfaceProps surfaceProps,
                                      boolean shouldCreateWithMips)

      • _nMakeNull

        public static long _nMakeNull​(int width,
                              int height)

      • _nGetWidth

        public static int _nGetWidth​(long ptr)

      • _nGetHeight

        public static int _nGetHeight​(long ptr)

      • _nGetImageInfo

        public static ImageInfo _nGetImageInfo​(long ptr)

      • _nGenerationId

        public static int _nGenerationId​(long ptr)

      • _nNotifyContentWillChange

        public static void _nNotifyContentWillChange​(long ptr,
                                             int mode)

      • _nGetRecordingContext

        public static long _nGetRecordingContext​(long ptr)

      • _nGetCanvas

        public static long _nGetCanvas​(long ptr)

      • _nMakeSurfaceI

        public static long _nMakeSurfaceI​(long ptr,
                                  int width,
                                  int height,
                                  int colorType,
                                  int alphaType,
                                  long colorSpacePtr)

      • _nMakeSurface

        public static long _nMakeSurface​(long ptr,
                                 int width,
                                 int height)

      • _nMakeImageSnapshot

        public static long _nMakeImageSnapshot​(long ptr)

      • _nMakeImageSnapshotR

        public static long _nMakeImageSnapshotR​(long ptr,
                                        int left,
                                        int top,
                                        int right,
                                        int bottom)

      • _nDraw

        public static void _nDraw​(long ptr,
                          long canvasPtr,
                          float x,
                          float y,
                          long paintPtr)

      • _nPeekPixels

        public static boolean _nPeekPixels​(long ptr,
                                   long pixmapPtr)

      • _nReadPixelsToPixmap

        public static boolean _nReadPixelsToPixmap​(long ptr,
                                           long pixmapPtr,
                                           int srcX,
                                           int srcY)

      • _nReadPixels

        public static boolean _nReadPixels​(long ptr,
                                   long bitmapPtr,
                                   int srcX,
                                   int srcY)

      • _nWritePixelsFromPixmap

        public static void _nWritePixelsFromPixmap​(long ptr,
                                           long pixmapPtr,
                                           int x,
                                           int y)

      • _nWritePixels

        public static void _nWritePixels​(long ptr,
                                 long bitmapPtr,
                                 int x,
                                 int y)

      • _nFlushAndSubmit

        public static void _nFlushAndSubmit​(long ptr,
                                    boolean syncCpu)

      • _nFlush

        public static void _nFlush​(long ptr)

      • _nUnique

        public static boolean _nUnique​(long ptr)