gtk2/gdk/linux-fb/mifillarc.c

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2000-05-31 21:50:38 +00:00
/* $XFree86: xc/programs/Xserver/mi/mifillarc.c,v 3.4 1999/04/11 13:11:20 dawes Exp $ */
/************************************************************
Copyright 1989, 1998 The Open Group
All Rights Reserved.
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.
Author: Bob Scheifler, MIT X Consortium
********************************************************/
/* $TOG: mifillarc.c /main/20 1998/02/09 14:46:52 kaleb $ */
#include <config.h>
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#include <math.h>
#include "mi.h"
#include "mifillarc.h"
#include "gdkprivate-fb.h"
#define QUADRANT (90 * 64)
#define HALFCIRCLE (180 * 64)
#define QUADRANT3 (270 * 64)
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#define Dsin(d) sin((double)d*(M_PI/11520.0))
#define Dcos(d) cos((double)d*(M_PI/11520.0))
void
miFillArcSetup(register miArc *arc, register miFillArcRec *info)
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{
info->y = arc->height >> 1;
info->dy = arc->height & 1;
info->yorg = arc->y + info->y;
info->dx = arc->width & 1;
info->xorg = arc->x + (arc->width >> 1) + info->dx;
info->dx = 1 - info->dx;
if (arc->width == arc->height)
{
/* (2x - 2xorg)^2 = d^2 - (2y - 2yorg)^2 */
/* even: xorg = yorg = 0 odd: xorg = .5, yorg = -.5 */
info->ym = 8;
info->xm = 8;
info->yk = info->y << 3;
if (!info->dx)
{
info->xk = 0;
info->e = -1;
}
else
{
info->y++;
info->yk += 4;
info->xk = -4;
info->e = - (info->y << 3);
}
}
else
{
/* h^2 * (2x - 2xorg)^2 = w^2 * h^2 - w^2 * (2y - 2yorg)^2 */
/* even: xorg = yorg = 0 odd: xorg = .5, yorg = -.5 */
info->ym = (arc->width * arc->width) << 3;
info->xm = (arc->height * arc->height) << 3;
info->yk = info->y * info->ym;
if (!info->dy)
info->yk -= info->ym >> 1;
if (!info->dx)
{
info->xk = 0;
info->e = - (info->xm >> 3);
}
else
{
info->y++;
info->yk += info->ym;
info->xk = -(info->xm >> 1);
info->e = info->xk - info->yk;
}
}
}
void
miFillArcDSetup(register miArc *arc, register miFillArcDRec *info)
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{
/* h^2 * (2x - 2xorg)^2 = w^2 * h^2 - w^2 * (2y - 2yorg)^2 */
/* even: xorg = yorg = 0 odd: xorg = .5, yorg = -.5 */
info->y = arc->height >> 1;
info->dy = arc->height & 1;
info->yorg = arc->y + info->y;
info->dx = arc->width & 1;
info->xorg = arc->x + (arc->width >> 1) + info->dx;
info->dx = 1 - info->dx;
info->ym = ((double)arc->width) * (arc->width * 8);
info->xm = ((double)arc->height) * (arc->height * 8);
info->yk = info->y * info->ym;
if (!info->dy)
info->yk -= info->ym / 2.0;
if (!info->dx)
{
info->xk = 0;
info->e = - (info->xm / 8.0);
}
else
{
info->y++;
info->yk += info->ym;
info->xk = -info->xm / 2.0;
info->e = info->xk - info->yk;
}
}
static void
miGetArcEdge(register miArc *arc, register miSliceEdgePtr edge, int k,
gboolean top, gboolean left)
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{
register int xady, y;
y = arc->height >> 1;
if (!(arc->width & 1))
y++;
if (!top)
{
y = -y;
if (arc->height & 1)
y--;
}
xady = k + y * edge->dx;
if (xady <= 0)
edge->x = - ((-xady) / edge->dy + 1);
else
edge->x = (xady - 1) / edge->dy;
edge->e = xady - edge->x * edge->dy;
if ((top && (edge->dx < 0)) || (!top && (edge->dx > 0)))
edge->e = edge->dy - edge->e + 1;
if (left)
edge->x++;
edge->x += arc->x + (arc->width >> 1);
if (edge->dx > 0)
{
edge->deltax = 1;
edge->stepx = edge->dx / edge->dy;
edge->dx = edge->dx % edge->dy;
}
else
{
edge->deltax = -1;
edge->stepx = - ((-edge->dx) / edge->dy);
edge->dx = (-edge->dx) % edge->dy;
}
if (!top)
{
edge->deltax = -edge->deltax;
edge->stepx = -edge->stepx;
}
}
void
miEllipseAngleToSlope (int angle, int width, int height, int *dxp, int *dyp,
double *d_dxp, double *d_dyp)
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{
int dx, dy;
double d_dx, d_dy, scale;
gboolean negative_dx, negative_dy;
switch (angle) {
case 0:
*dxp = -1;
*dyp = 0;
if (d_dxp) {
*d_dxp = width / 2.0;
*d_dyp = 0;
}
break;
case QUADRANT:
*dxp = 0;
*dyp = 1;
if (d_dxp) {
*d_dxp = 0;
*d_dyp = - height / 2.0;
}
break;
case HALFCIRCLE:
*dxp = 1;
*dyp = 0;
if (d_dxp) {
*d_dxp = - width / 2.0;
*d_dyp = 0;
}
break;
case QUADRANT3:
*dxp = 0;
*dyp = -1;
if (d_dxp) {
*d_dxp = 0;
*d_dyp = height / 2.0;
}
break;
default:
d_dx = Dcos(angle) * width;
d_dy = Dsin(angle) * height;
if (d_dxp) {
*d_dxp = d_dx / 2.0;
*d_dyp = - d_dy / 2.0;
}
negative_dx = FALSE;
if (d_dx < 0.0)
{
d_dx = -d_dx;
negative_dx = TRUE;
}
negative_dy = FALSE;
if (d_dy < 0.0)
{
d_dy = -d_dy;
negative_dy = TRUE;
}
scale = d_dx;
if (d_dy > d_dx)
scale = d_dy;
dx = floor ((d_dx * 32768) / scale + 0.5);
if (negative_dx)
dx = -dx;
*dxp = dx;
dy = floor ((d_dy * 32768) / scale + 0.5);
if (negative_dy)
dy = -dy;
*dyp = dy;
break;
}
}
static void
miGetPieEdge(register miArc *arc, register int angle,
register miSliceEdgePtr edge, gboolean top, gboolean left)
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{
register int k;
int dx, dy;
miEllipseAngleToSlope (angle, arc->width, arc->height, &dx, &dy, NULL, NULL);
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if (dy == 0)
{
edge->x = left ? -65536 : 65536;
edge->stepx = 0;
edge->e = 0;
edge->dx = -1;
return;
}
if (dx == 0)
{
edge->x = arc->x + (arc->width >> 1);
if (left && (arc->width & 1))
edge->x++;
else if (!left && !(arc->width & 1))
edge->x--;
edge->stepx = 0;
edge->e = 0;
edge->dx = -1;
return;
}
if (dy < 0) {
dx = -dx;
dy = -dy;
}
k = (arc->height & 1) ? dx : 0;
if (arc->width & 1)
k += dy;
edge->dx = dx << 1;
edge->dy = dy << 1;
miGetArcEdge(arc, edge, k, top, left);
}
void
miFillArcSliceSetup(register miArc *arc, register miArcSliceRec *slice,
GdkGC *pGC)
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{
register int angle1, angle2;
angle1 = arc->angle1;
if (arc->angle2 < 0)
{
angle2 = angle1;
angle1 += arc->angle2;
}
else
angle2 = angle1 + arc->angle2;
while (angle1 < 0)
angle1 += FULLCIRCLE;
while (angle1 >= FULLCIRCLE)
angle1 -= FULLCIRCLE;
while (angle2 < 0)
angle2 += FULLCIRCLE;
while (angle2 >= FULLCIRCLE)
angle2 -= FULLCIRCLE;
slice->min_top_y = 0;
slice->max_top_y = arc->height >> 1;
slice->min_bot_y = 1 - (arc->height & 1);
slice->max_bot_y = slice->max_top_y - 1;
slice->flip_top = FALSE;
slice->flip_bot = FALSE;
if (1 /* pGC->arcMode == ArcPieSlice */)
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{
slice->edge1_top = (angle1 < HALFCIRCLE);
slice->edge2_top = (angle2 <= HALFCIRCLE);
if ((angle2 == 0) || (angle1 == HALFCIRCLE))
{
if (angle2 ? slice->edge2_top : slice->edge1_top)
slice->min_top_y = slice->min_bot_y;
else
slice->min_top_y = arc->height;
slice->min_bot_y = 0;
}
else if ((angle1 == 0) || (angle2 == HALFCIRCLE))
{
slice->min_top_y = slice->min_bot_y;
if (angle1 ? slice->edge1_top : slice->edge2_top)
slice->min_bot_y = arc->height;
else
slice->min_bot_y = 0;
}
else if (slice->edge1_top == slice->edge2_top)
{
if (angle2 < angle1)
{
slice->flip_top = slice->edge1_top;
slice->flip_bot = !slice->edge1_top;
}
else if (slice->edge1_top)
{
slice->min_top_y = 1;
slice->min_bot_y = arc->height;
}
else
{
slice->min_bot_y = 0;
slice->min_top_y = arc->height;
}
}
miGetPieEdge(arc, angle1, &slice->edge1,
slice->edge1_top, !slice->edge1_top);
miGetPieEdge(arc, angle2, &slice->edge2,
slice->edge2_top, slice->edge2_top);
}
else
{
double w2, h2, x1, y1, x2, y2, dx, dy, scale;
int signdx, signdy, y, k;
gboolean isInt1 = TRUE, isInt2 = TRUE;
w2 = (double)arc->width / 2.0;
h2 = (double)arc->height / 2.0;
if ((angle1 == 0) || (angle1 == HALFCIRCLE))
{
x1 = angle1 ? -w2 : w2;
y1 = 0.0;
}
else if ((angle1 == QUADRANT) || (angle1 == QUADRANT3))
{
x1 = 0.0;
y1 = (angle1 == QUADRANT) ? h2 : -h2;
}
else
{
isInt1 = FALSE;
x1 = Dcos(angle1) * w2;
y1 = Dsin(angle1) * h2;
}
if ((angle2 == 0) || (angle2 == HALFCIRCLE))
{
x2 = angle2 ? -w2 : w2;
y2 = 0.0;
}
else if ((angle2 == QUADRANT) || (angle2 == QUADRANT3))
{
x2 = 0.0;
y2 = (angle2 == QUADRANT) ? h2 : -h2;
}
else
{
isInt2 = FALSE;
x2 = Dcos(angle2) * w2;
y2 = Dsin(angle2) * h2;
}
dx = x2 - x1;
dy = y2 - y1;
if (arc->height & 1)
{
y1 -= 0.5;
y2 -= 0.5;
}
if (arc->width & 1)
{
x1 += 0.5;
x2 += 0.5;
}
if (dy < 0.0)
{
dy = -dy;
signdy = -1;
}
else
signdy = 1;
if (dx < 0.0)
{
dx = -dx;
signdx = -1;
}
else
signdx = 1;
if (isInt1 && isInt2)
{
slice->edge1.dx = dx * 2;
slice->edge1.dy = dy * 2;
}
else
{
scale = (dx > dy) ? dx : dy;
slice->edge1.dx = floor((dx * 32768) / scale + .5);
slice->edge1.dy = floor((dy * 32768) / scale + .5);
}
if (!slice->edge1.dy)
{
if (signdx < 0)
{
y = floor(y1 + 1.0);
if (y >= 0)
{
slice->min_top_y = y;
slice->min_bot_y = arc->height;
}
else
{
slice->max_bot_y = -y - (arc->height & 1);
}
}
else
{
y = floor(y1);
if (y >= 0)
slice->max_top_y = y;
else
{
slice->min_top_y = arc->height;
slice->min_bot_y = -y - (arc->height & 1);
}
}
slice->edge1_top = TRUE;
slice->edge1.x = 65536;
slice->edge1.stepx = 0;
slice->edge1.e = 0;
slice->edge1.dx = -1;
slice->edge2 = slice->edge1;
slice->edge2_top = FALSE;
}
else if (!slice->edge1.dx)
{
if (signdy < 0)
x1 -= 1.0;
slice->edge1.x = ceil(x1);
slice->edge1_top = signdy < 0;
slice->edge1.x += arc->x + (arc->width >> 1);
slice->edge1.stepx = 0;
slice->edge1.e = 0;
slice->edge1.dx = -1;
slice->edge2_top = !slice->edge1_top;
slice->edge2 = slice->edge1;
}
else
{
if (signdx < 0)
slice->edge1.dx = -slice->edge1.dx;
if (signdy < 0)
slice->edge1.dx = -slice->edge1.dx;
k = ceil(((x1 + x2) * slice->edge1.dy - (y1 + y2) * slice->edge1.dx) / 2.0);
slice->edge2.dx = slice->edge1.dx;
slice->edge2.dy = slice->edge1.dy;
slice->edge1_top = signdy < 0;
slice->edge2_top = !slice->edge1_top;
miGetArcEdge(arc, &slice->edge1, k,
slice->edge1_top, !slice->edge1_top);
miGetArcEdge(arc, &slice->edge2, k,
slice->edge2_top, slice->edge2_top);
}
}
}
#define ADDSPANS() \
pts->x = xorg - x; \
pts->y = yorg - y; \
pts->width = slw; \
pts++; \
if (miFillArcLower(slw)) \
{ \
pts->x = xorg - x; \
pts->y = yorg + y + dy; \
pts->width = slw; \
pts++; \
}
static void
miFillEllipseI(GdkDrawable *pDraw, GdkGC *pGC, miArc *arc)
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{
register int x, y, e;
int yk, xk, ym, xm, dx, dy, xorg, yorg;
int slw;
miFillArcRec info;
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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GdkSpan* points;
register GdkSpan* pts;
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i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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points = (GdkSpan*)ALLOCATE_LOCAL(sizeof(GdkSpan) * arc->height);
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if (!points)
return;
miFillArcSetup(arc, &info);
MIFILLARCSETUP();
pts = points;
while (y > 0)
{
MIFILLARCSTEP(slw);
ADDSPANS();
}
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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gdk_fb_fill_spans(pDraw, pGC, points, pts - points, FALSE);
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DEALLOCATE_LOCAL(points);
}
static void
miFillEllipseD(GdkDrawable *pDraw, GdkGC *pGC, miArc *arc)
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{
register int x, y;
int xorg, yorg, dx, dy, slw;
double e, yk, xk, ym, xm;
miFillArcDRec info;
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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GdkSpan* points;
register GdkSpan* pts;
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i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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points = (GdkSpan*)ALLOCATE_LOCAL(sizeof(GdkSpan) * arc->height);
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if (!points)
return;
miFillArcDSetup(arc, &info);
MIFILLARCSETUP();
pts = points;
while (y > 0)
{
MIFILLARCSTEP(slw);
ADDSPANS();
}
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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gdk_fb_fill_spans(pDraw, pGC, points, pts - points, FALSE);
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DEALLOCATE_LOCAL(points);
}
#define ADDSPAN(l,r) \
if (r >= l) \
{ \
pts->x = l; \
pts->y = ya; \
pts->width = r - l + 1; \
pts++; \
}
#define ADDSLICESPANS(flip) \
if (!flip) \
{ \
ADDSPAN(xl, xr); \
} \
else \
{ \
xc = xorg - x; \
ADDSPAN(xc, xr); \
xc += slw - 1; \
ADDSPAN(xl, xc); \
}
static void
miFillArcSliceI(GdkDrawable *pDraw, GdkGC *pGC, miArc *arc)
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{
int yk, xk, ym, xm, dx, dy, xorg, yorg, slw;
register int x, y, e;
miFillArcRec info;
miArcSliceRec slice;
int ya, xl, xr, xc;
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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GdkSpan* points;
register GdkSpan* pts;
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miFillArcSetup(arc, &info);
miFillArcSliceSetup(arc, &slice, pGC);
MIFILLARCSETUP();
slw = arc->height;
if (slice.flip_top || slice.flip_bot)
slw += (arc->height >> 1) + 1;
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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points = (GdkSpan*)ALLOCATE_LOCAL(sizeof(GdkSpan) * slw);
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if (!points)
return;
pts = points;
while (y > 0)
{
MIFILLARCSTEP(slw);
MIARCSLICESTEP(slice.edge1);
MIARCSLICESTEP(slice.edge2);
if (miFillSliceUpper(slice))
{
ya = yorg - y;
MIARCSLICEUPPER(xl, xr, slice, slw);
ADDSLICESPANS(slice.flip_top);
}
if (miFillSliceLower(slice))
{
ya = yorg + y + dy;
MIARCSLICELOWER(xl, xr, slice, slw);
ADDSLICESPANS(slice.flip_bot);
}
}
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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gdk_fb_fill_spans(pDraw, pGC, points, pts - points, FALSE);
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DEALLOCATE_LOCAL(points);
}
static void
miFillArcSliceD(GdkDrawable *pDraw, GdkGC *pGC, miArc *arc)
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{
register int x, y;
int dx, dy, xorg, yorg, slw;
double e, yk, xk, ym, xm;
miFillArcDRec info;
miArcSliceRec slice;
int ya, xl, xr, xc;
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
2000-11-22 10:07:34 +00:00
GdkSpan* points;
register GdkSpan* pts;
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miFillArcDSetup(arc, &info);
miFillArcSliceSetup(arc, &slice, pGC);
MIFILLARCSETUP();
slw = arc->height;
if (slice.flip_top || slice.flip_bot)
slw += (arc->height >> 1) + 1;
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
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points = (GdkSpan*)ALLOCATE_LOCAL(sizeof(GdkSpan) * slw);
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if (!points)
return;
pts = points;
while (y > 0)
{
MIFILLARCSTEP(slw);
MIARCSLICESTEP(slice.edge1);
MIARCSLICESTEP(slice.edge2);
if (miFillSliceUpper(slice))
{
ya = yorg - y;
MIARCSLICEUPPER(xl, xr, slice, slw);
ADDSLICESPANS(slice.flip_top);
}
if (miFillSliceLower(slice))
{
ya = yorg + y + dy;
MIARCSLICELOWER(xl, xr, slice, slw);
ADDSLICESPANS(slice.flip_bot);
}
}
i2000-11-22 Alexander Larsson <alexl@redhat.com> * gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
2000-11-22 10:07:34 +00:00
gdk_fb_fill_spans(pDraw, pGC, points, pts - points, FALSE);
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DEALLOCATE_LOCAL(points);
}
/* MIPOLYFILLARC -- The public entry for the PolyFillArc request.
* Since we don't have to worry about overlapping segments, we can just
* fill each arc as it comes.
*/
void
miPolyFillArc(GdkDrawable *pDraw, GdkGC *pGC, int narcs, miArc *parcs)
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{
register int i;
register miArc *arc;
for(i = narcs, arc = parcs; --i >= 0; arc++)
{
if (miFillArcEmpty(arc))
continue;;
if ((arc->angle2 >= FULLCIRCLE) || (arc->angle2 <= -FULLCIRCLE))
{
if (miCanFillArc(arc))
miFillEllipseI(pDraw, pGC, arc);
else
miFillEllipseD(pDraw, pGC, arc);
}
else
{
if (miCanFillArc(arc))
miFillArcSliceI(pDraw, pGC, arc);
else
miFillArcSliceD(pDraw, pGC, arc);
}
}
}