1mlib_ImageZoom_Fp(3MLIB) mediaLib Library Functions mlib_ImageZoom_Fp(3MLIB)
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6 mlib_ImageZoom_Fp - zoom
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9 cc [ flag... ] file... -lmlib [ library... ]
10 #include <mlib.h>
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12 mlib_status mlib_ImageZoom_Fp(mlib_image *dst, const mlib_image *src,
13 mlib_d64 zoomx, mlib_d64 zoomy, mlib_filter filter, mlib_edge edge);
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17 The mlib_ImageZoom_Fp() function will enlarge or minify the floating-
18 point source image by the X and Y zoom factors. It uses the interpola‐
19 tion method as described by the resampling filter.
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22 The center of the upper-left corner pixel of an image is located at
23 (0.5, 0.5).
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26 The width and height of the destination image can be different from
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30 The center of the source image is mapped onto the center of the desti‐
31 nation image.
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34 The function takes the following arguments:
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36 dst Pointer to destination image.
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39 src Pointer to source image.
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42 zoomx X zoom factor. zoomx > 0.0.
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45 zoomy Y zoom factor. zoomy > 0.0.
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48 filter Type of resampling filter. It can be one of the following:
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50 MLIB_NEAREST
51 MLIB_BILINEAR
52 MLIB_BICUBIC
53 MLIB_BICUBIC2
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57 edge Type of edge condition. It can be one of the following:
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59 MLIB_EDGE_DST_NO_WRITE
60 MLIB_EDGE_DST_FILL_ZERO
61 MLIB_EDGE_OP_NEAREST
62 MLIB_EDGE_SRC_EXTEND
63 MLIB_EDGE_SRC_EXTEND_INDEF
64 MLIB_EDGE_SRC_PADDED
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69 The function returns MLIB_SUCCESS if successful. Otherwise it returns
70 MLIB_FAILURE.
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73 See attributes(5) for descriptions of the following attributes:
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78 ┌─────────────────────────────┬─────────────────────────────┐
79 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
80 ├─────────────────────────────┼─────────────────────────────┤
81 │Interface Stability │Committed │
82 ├─────────────────────────────┼─────────────────────────────┤
83 │MT-Level │MT-Safe │
84 └─────────────────────────────┴─────────────────────────────┘
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87 mlib_ImageZoom(3MLIB), mlib_ImageZoomIn2X(3MLIB), mlib_Image‐
88 ZoomIn2X_Fp(3MLIB), mlib_ImageZoomIn2XIndex(3MLIB), mlib_ImageZoomIn‐
89 dex(3MLIB), mlib_ImageZoomOut2X(3MLIB), mlib_ImageZoomOut2X_Fp(3MLIB),
90 mlib_ImageZoomOut2XIndex(3MLIB), attributes(5)
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94SunOS 5.11 2 Mar 2007 mlib_ImageZoom_Fp(3MLIB)