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author | Alexander Larsson <alexl@redhat.com> | 2010-02-17 15:50:44 +0100 |
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committer | Alexander Larsson <alexl@redhat.com> | 2010-02-23 14:43:20 +0100 |
commit | 60a189f2503dec00556656988835948016aff389 (patch) | |
tree | 780413d89115a5b496c704715c6090d16be22bdf /common/lines.h | |
parent | 9091e763a80d368114100d8452e26af67c5829b3 (diff) | |
download | spice-60a189f2503dec00556656988835948016aff389.tar.gz spice-60a189f2503dec00556656988835948016aff389.tar.xz spice-60a189f2503dec00556656988835948016aff389.zip |
Add line rasterizer
Diffstat (limited to 'common/lines.h')
-rw-r--r-- | common/lines.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/common/lines.h b/common/lines.h new file mode 100644 index 00000000..b5f7725b --- /dev/null +++ b/common/lines.h @@ -0,0 +1,130 @@ +/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */ +/*********************************************************** + +Copyright 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + + +Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ + +#ifndef LINES_H +#define LINES_H + +#include <pixman.h> +#include <stdlib.h> +#include <string.h> +#include <spice/draw.h> + +typedef struct lineGC lineGC; + +typedef struct { + void (*FillSpans)(lineGC * pGC, + int num_spans, SpicePoint * points, int *widths, + int sorted, int foreground); + void (*FillRects)(lineGC * pGC, + int nun_rects, pixman_rectangle32_t * rects, + int foreground); +} lineGCOps; + +struct lineGC { + int width; + int height; + unsigned char alu; + unsigned short lineWidth; + unsigned short dashOffset; + unsigned short numInDashList; + unsigned char *dash; + unsigned int lineStyle:2; + unsigned int capStyle:2; + unsigned int joinStyle:2; + lineGCOps *ops; +}; + +/* CoordinateMode for drawing routines */ + +#define CoordModeOrigin 0 /* relative to the origin */ +#define CoordModePrevious 1 /* relative to previous point */ + +/* LineStyle */ + +#define LineSolid 0 +#define LineOnOffDash 1 +#define LineDoubleDash 2 + +/* capStyle */ + +#define CapNotLast 0 +#define CapButt 1 +#define CapRound 2 +#define CapProjecting 3 + +/* joinStyle */ + +#define JoinMiter 0 +#define JoinRound 1 +#define JoinBevel 2 + +extern void spice_canvas_zero_line(lineGC *pgc, + int mode, + int num_points, + SpicePoint * points); +extern void spice_canvas_zero_dash_line(lineGC * pgc, + int mode, + int n_points, + SpicePoint * points); +extern void spice_canvas_wide_dash_line(lineGC * pGC, + int mode, + int num_points, + SpicePoint * points); +extern void spice_canvas_wide_line(lineGC *pGC, + int mode, + int num_points, + SpicePoint * points); +extern int spice_canvas_clip_spans(pixman_region32_t *clip_region, + SpicePoint *points, + int *widths, + int num_spans, + SpicePoint *new_points, + int *new_widths, + int sorted); + +#endif /* LINES_H */ |