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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/hw/xprint/pcl/PclArc.c
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Diffstat (limited to 'xorg-server/hw/xprint/pcl/PclArc.c')
-rw-r--r--xorg-server/hw/xprint/pcl/PclArc.c268
1 files changed, 268 insertions, 0 deletions
diff --git a/xorg-server/hw/xprint/pcl/PclArc.c b/xorg-server/hw/xprint/pcl/PclArc.c
new file mode 100644
index 000000000..20d3f723d
--- /dev/null
+++ b/xorg-server/hw/xprint/pcl/PclArc.c
@@ -0,0 +1,268 @@
+/*******************************************************************
+**
+** *********************************************************
+** *
+** * File: PclArc.c
+** *
+** * Contents:
+** * Arc-drawing code for the PCL DDX driver
+** *
+** * Created: 10/23/95
+** *
+** *********************************************************
+**
+********************************************************************/
+/*
+(c) Copyright 1996 Hewlett-Packard Company
+(c) Copyright 1996 International Business Machines Corp.
+(c) Copyright 1996 Sun Microsystems, Inc.
+(c) Copyright 1996 Novell, Inc.
+(c) Copyright 1996 Digital Equipment Corp.
+(c) Copyright 1996 Fujitsu Limited
+(c) Copyright 1996 Hitachi, Ltd.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+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
+COPYRIGHT HOLDERS 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 names of the copyright holders shall
+not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from said
+copyright holders.
+*/
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdio.h>
+#include <math.h>
+#include <errno.h>
+
+#include "Pcl.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "attributes.h"
+
+static void
+PclDoArc(
+ DrawablePtr pDrawable,
+ GCPtr pGC,
+ int nArcs,
+ xArc *pArcs,
+ void (*DoIt)(FILE *, PclContextPrivPtr, double, double, xArc))
+{
+ char t[80];
+ FILE *outFile;
+ int nbox, i;
+ BoxPtr pbox;
+ BoxRec r;
+ RegionPtr drawRegion, region, transClip;
+ short fudge;
+ int xoffset, yoffset;
+ XpContextPtr pCon;
+ PclContextPrivPtr pConPriv;
+ xRectangle repro;
+
+ if( PclUpdateDrawableGC( pGC, pDrawable, &outFile ) == FALSE )
+ return;
+
+ fudge = 3 * pGC->lineWidth;
+
+ pCon = PclGetContextFromWindow( (WindowPtr) pDrawable );
+ pConPriv = (PclContextPrivPtr)
+ dixLookupPrivate(&pCon->devPrivates, PclContextPrivateKey);
+ XpGetReproductionArea( pCon, &repro );
+
+ /*
+ * Generate the PCL code to draw the collection of arcs, by
+ * defining it as a macro which uses the HP-GL/2 arc drawing
+ * function.
+ */
+
+ xoffset = pDrawable->x;
+ yoffset = pDrawable->y;
+
+ for( i = 0; i < nArcs; i++ )
+ {
+ xArc Arc = pArcs[i];
+ double b, X, Y, ratio;
+ double angle1;
+
+ MACRO_START( outFile, pConPriv );
+ SAVE_PCL( outFile, pConPriv, "\033%0B" );
+
+ /* Calculate the start of the arc */
+ if( ( Arc.angle1 / 64 ) % 360 == 90 )
+ {
+ X = 0;
+ Y = -Arc.height / 2.0;
+ }
+ else if( ( Arc.angle1 / 64 ) % 360 == 270 )
+ {
+ X = 0;
+ Y = Arc.height / 2.0;
+ }
+ else
+ {
+ /* Convert the angle to radians */
+ angle1 = ( Arc.angle1 / 64.0 ) * 3.141592654 / 180.0;
+
+ b = (Arc.height / 2.0);
+ X = b * cos( angle1 );
+ Y = -b * sin( angle1 );
+ }
+
+ /* Change the coordinate system to scale the ellipse */
+ ratio = (double)Arc.height / (double)Arc.width;
+
+ sprintf( t, "SC%.2f,%.2f,%d,%d;",
+ (repro.x - Arc.width / 2 - xoffset - Arc.x) * ratio,
+ (repro.x - Arc.width / 2 - xoffset - Arc.x +
+ repro.width) * ratio,
+ repro.y - Arc.height / 2 - yoffset - Arc.y + repro.height,
+ repro.y - Arc.height / 2 - yoffset - Arc.y);
+ SAVE_PCL( outFile, pConPriv, t );
+
+ DoIt( outFile, pConPriv, X, Y, Arc );
+
+ /* Build the bounding box */
+ r.x1 = -Arc.width / 2 - fudge;
+ r.y1 = -Arc.height / 2 - fudge;
+ r.x2 = Arc.width / 2 + fudge;
+ r.y2 = Arc.height / 2 + fudge;
+ drawRegion = REGION_CREATE( pGC->pScreen, &r, 0 );
+
+ SAVE_PCL( outFile, pConPriv, "\033%0A" );
+ MACRO_END( outFile );
+
+ /*
+ * Intersect the bounding box with the clip region.
+ */
+ region = REGION_CREATE( pGC->pScreen, NULL, 0 );
+ transClip = REGION_CREATE( pGC->pScreen, NULL, 0 );
+ REGION_COPY( pGC->pScreen, transClip, pGC->pCompositeClip );
+ REGION_TRANSLATE( pGC->pScreen, transClip,
+ -(xoffset + Arc.x + Arc.width / 2),
+ -(yoffset + Arc.y + Arc.height / 2) );
+ REGION_INTERSECT( pGC->pScreen, region, drawRegion, transClip );
+
+ /*
+ * For each rectangle in the clip region, set the HP-GL/2 "input
+ * window" and render the collection of arcs to it.
+ */
+ pbox = REGION_RECTS( region );
+ nbox = REGION_NUM_RECTS( region );
+
+ PclSendData(outFile, pConPriv, pbox, nbox, ratio);
+
+ /*
+ * Restore the coordinate system
+ */
+ sprintf( t, "\033%%0BSC%d,%d,%d,%d;\033%%0A", repro.x,
+ repro.x + repro.width, repro.y + repro.height,
+ repro.y );
+ SEND_PCL( outFile, t );
+
+ /*
+ * Clean up the temporary regions
+ */
+ REGION_DESTROY( pGC->pScreen, drawRegion );
+ REGION_DESTROY( pGC->pScreen, region );
+ REGION_DESTROY( pGC->pScreen, transClip );
+ }
+}
+
+/*
+ * Draw a simple non-filled arc, centered on the origin and starting
+ * at the given point.
+ */
+static void
+DrawArc(FILE *outFile,
+ PclContextPrivPtr pConPriv,
+ double X,
+ double Y,
+ xArc A)
+{
+ char t[80];
+
+ sprintf( t, "PU%d,%d;PD;AA0,0,%.2f;", (int)X, (int)Y,
+ (float)A.angle2 / -64.0 );
+ SAVE_PCL(outFile, pConPriv, t);
+}
+
+void
+PclPolyArc(
+ DrawablePtr pDrawable,
+ GCPtr pGC,
+ int nArcs,
+ xArc *pArcs)
+{
+ PclDoArc( pDrawable, pGC, nArcs, pArcs, DrawArc );
+}
+
+/*
+ * Draw a filled wedge, from the origin, to the given point, through
+ * the appropriate angle, and back to the origin.
+ */
+static void
+DoWedge(FILE *outFile,
+ PclContextPrivPtr pConPriv,
+ double X,
+ double Y,
+ xArc A)
+{
+ char t[80];
+
+ sprintf( t, "PU0,0;WG%.2f,%.2f,%.2f;", sqrt( X * X + Y * Y ),
+ (float)A.angle1 / -64.0,
+ (float)A.angle2 / -64.0 );
+ SAVE_PCL(outFile, pConPriv, t);
+}
+
+static void
+DoChord(FILE *outFile,
+ PclContextPrivPtr pConPriv,
+ double X,
+ double Y,
+ xArc A)
+{
+ char t[80];
+
+ sprintf( t, "PU%d,%d;PM0;AA0,0,%.2f;PA%d,%d;PM2;FP;", (int)X, (int)Y,
+ (float)A.angle2 / -64.0 , (int)X, (int)Y );
+ SAVE_PCL(outFile, pConPriv, t);
+}
+
+
+void
+PclPolyFillArc(
+ DrawablePtr pDrawable,
+ GCPtr pGC,
+ int nArcs,
+ xArc *pArcs)
+{
+ switch( pGC->arcMode )
+ {
+ case ArcChord:
+ PclDoArc( pDrawable, pGC, nArcs, pArcs, DoChord );
+ break;
+ case ArcPieSlice:
+ PclDoArc( pDrawable, pGC, nArcs, pArcs, DoWedge );
+ break;
+ }
+}