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80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
/*
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* Copyright © 2007 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#ifndef _RRTRANSFORM_H_
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#define _RRTRANSFORM_H_
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#include <X11/extensions/randr.h>
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#include "picturestr.h"
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typedef struct _rrTransform RRTransformRec, *RRTransformPtr;
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struct _rrTransform {
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PictTransform transform;
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struct pict_f_transform f_transform;
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struct pict_f_transform f_inverse;
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PictFilterPtr filter;
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xFixed *params;
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int nparams;
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int width;
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int height;
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};
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extern _X_EXPORT void
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RRTransformInit(RRTransformPtr transform);
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extern _X_EXPORT void
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RRTransformFini(RRTransformPtr transform);
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extern _X_EXPORT Bool
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RRTransformEqual(RRTransformPtr a, RRTransformPtr b);
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extern _X_EXPORT Bool
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RRTransformSetFilter(RRTransformPtr dst,
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PictFilterPtr filter,
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xFixed * params, int nparams, int width, int height);
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extern _X_EXPORT Bool
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RRTransformCopy(RRTransformPtr dst, RRTransformPtr src);
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/*
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* Compute the complete transformation matrix including
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* client-specified transform, rotation/reflection values and the crtc
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* offset.
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*
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* Return TRUE if the resulting transform is not a simple translation.
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*/
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extern _X_EXPORT Bool
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RRTransformCompute(int x,
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int y,
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int width,
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int height,
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Rotation rotation,
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RRTransformPtr rr_transform,
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PictTransformPtr transform,
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struct pict_f_transform *f_transform,
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struct pict_f_transform *f_inverse);
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#endif /* _RRTRANSFORM_H_ */
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