mlib_imagezoomblend(3mlib) [sunos man page]
mlib_ImageZoomBlend(3MLIB) mediaLib Library Functions mlib_ImageZoomBlend(3MLIB) NAME
mlib_ImageZoomBlend - image scaling with alpha blending SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageZoomBlend(mlib_image *dst, const mlib_image *src, mlib_d64 zoomx, mlib_d64 zoomy, mlib_filter filter, mlib_edge edge, mlib_blend blend, mlib_s32 alpha, mlib_s32 cmask); DESCRIPTION
The mlib_ImageZoomBlend() function will enlarge or minify the source image by the X and Y zoom factors and blend it with the destination image. This function is a special case of mlib_ImageZoomTranslateBlend() with the center of the source image being mapped to the center of the destination image. The center of the upper-left corner pixel of an image is considered to be located at (0.5, 0.5). Both src and dst must be of type MLIB_BYTE. They can have either 3 or 4 channels. The src image cannot have width or height larger than 32767. PARAMETERS
The function takes the following arguments: dst Pointer to destination image. src Pointer to first source image. zoomx X zoom factor. zoomx > 0.0. zoomy Y zoom factor. zoomy > 0.0. filter Type of resampling filter. It can be one of the following: MLIB_NEAREST MLIB_BILINEAR MLIB_BICUBIC MLIB_BICUBIC2 edge Type of edge condition. It can be one of the following: MLIB_EDGE_DST_NO_WRITE MLIB_EDGE_DST_FILL_ZERO MLIB_EDGE_OP_NEAREST MLIB_EDGE_SRC_EXTEND MLIB_EDGE_SRC_EXTEND_INDEF MLIB_EDGE_SRC_PADDED blend Type of alpha blending. It can be one of the following: MLIB_BLEND_GTK_SRC MLIB_BLEND_GTK_SRC_OVER MLIB_BLEND_GTK_SRC_OVER2 alpha Overall alpha for blending. cmask Channel mask to indicate the alpha channel. RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageZoomTranslateBlend(3MLIB), mlib_ImageZoomTranslateTableBlend(3MLIB), attributes(5) SunOS 5.10 10 Nov 2004 mlib_ImageZoomBlend(3MLIB)
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mlib_ImageZoomTranslate(3MLIB) mediaLib Library Functions mlib_ImageZoomTranslate(3MLIB) NAME
mlib_ImageZoomTranslate - zoom, with translation SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageZoomTranslate(mlib_image *dst, const mlib_image *src, mlib_d64 zoomx, mlib_d64 zoomy, mlib_d64 tx, mlib_d64 ty, mlib_filter filter, mlib_edge edge); DESCRIPTION
The mlib_ImageZoomTranslate() function will enlarge or minify the source image by the X and Y zoom factors, with translation. It uses the interpolation method as described by the resampling filter. It uses the following equation for coordinate mapping: xd = zoomx*xs + tx yd = zoomy*ys + ty where a point with coordinates (xs, ys) in the source image is mapped to a point with coordinates (xd, yd) in the destination image. The data type of the images can be MLIB_BIT, MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT. The width and height of the destination image can be different from the width and height of the source image. The center of the upper-left corner pixel of an image is located at (0.5, 0.5). PARAMETERS
The function takes the following arguments: dst Pointer to destination image. src Pointer to source image. zoomx X zoom factor. zoomx > 0. zoomy Y zoom factor. zoomy > 0. tx X translation. ty Y translation. filter Type of resampling filter. It can be one of the following: MLIB_NEAREST MLIB_BILINEAR MLIB_BICUBIC MLIB_BICUBIC2 edge Type of edge condition. It can be one of the following: MLIB_EDGE_DST_NO_WRITE MLIB_EDGE_DST_FILL_ZERO MLIB_EDGE_OP_NEAREST MLIB_EDGE_SRC_EXTEND MLIB_EDGE_SRC_EXTEND_INDEF MLIB_EDGE_SRC_PADDED RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageZoomTranslate_Fp(3MLIB), mlib_ImageAffine(3MLIB), mlib_ImageAffine_Fp(3MLIB), attributes(5) SunOS 5.10 10 Nov 2004 mlib_ImageZoomTranslate(3MLIB)