void wdCanvasStipple(cdCanvas* canvas, int w, int h, const unsigned char *fgbg, double w_mm, double h_mm)
{
unsigned char *stipple = NULL;
int w_pxl, h_pxl, x, y, cx, cy;
int wratio, hratio;
int *XTab, *YTab;
assert(canvas);
if (!_cdCheckCanvas(canvas)) return;
cdCanvasMM2Pixel(canvas, w_mm, h_mm, &w_pxl, &h_pxl);
/* to preserve the pattern characteristics must be an integer number */
wratio = cdRound((double)w_pxl/(double)w);
hratio = cdRound((double)h_pxl/(double)h);
wratio = (wratio <= 0)? 1: wratio;
hratio = (hratio <= 0)? 1: hratio;
w_pxl = wratio * w;
h_pxl = hratio * h;
stipple = (unsigned char*)malloc(w_pxl*h_pxl);
XTab = cdGetZoomTable(w_pxl, w, 0);
YTab = cdGetZoomTable(h_pxl, h, 0);
for (y=0; y<h_pxl; y++)
{
cy = YTab[y];
for (x=0; x<w_pxl; x++)
{
cx = XTab[x];
stipple[x + y*w_pxl] = fgbg[cx + cy*w];
}
}
cdCanvasStipple(canvas, w_pxl, h_pxl, stipple);
free(XTab);
free(YTab);
free(stipple);
}
void wdCanvasPattern(cdCanvas* canvas, int w, int h, const long *color, double w_mm, double h_mm)
{
long *pattern = NULL;
int w_pxl, h_pxl, x, y, cx, cy;
int wratio, hratio;
int *XTab, *YTab;
assert(canvas);
if (!_cdCheckCanvas(canvas)) return;
cdCanvasMM2Pixel(canvas, w_mm, h_mm, &w_pxl, &h_pxl);
/* to preserve the pattern characteristics must be an integer number */
wratio = cdRound((double)w_pxl/(double)w);
hratio = cdRound((double)h_pxl/(double)h);
wratio = (wratio <= 0)? 1: wratio;
hratio = (hratio <= 0)? 1: hratio;
w_pxl = wratio * w;
h_pxl = hratio * h;
pattern = (long*)malloc(w_pxl*h_pxl*sizeof(long));
XTab = cdGetZoomTable(w_pxl, w, 0);
YTab = cdGetZoomTable(h_pxl, h, 0);
for (y=0; y<h_pxl; y++)
{
cy = YTab[y];
for (x=0; x<w_pxl; x++)
{
cx = XTab[x];
pattern[x + y*w_pxl] = color[cx + cy*w];
}
}
cdCanvasPattern(canvas, w_pxl, h_pxl, pattern);
free(XTab);
free(YTab);
free(pattern);
}
void wdCanvasStipple(cdCanvas* canvas, int w, int h, const unsigned char *fgbg, double w_mm, double h_mm)
{
unsigned char *stipple = 0;
int w_pxl, h_pxl, x, y, cx, cy;
int wratio, hratio;
int *XTab, *YTab;
cdCanvasMM2Pixel(canvas, w_mm, h_mm, &w_pxl, &h_pxl);
wratio = cdRound((double)w_pxl/(double)w);
hratio = cdRound((double)h_pxl/(double)h);
wratio = (wratio <= 0)? 1: wratio;
hratio = (hratio <= 0)? 1: hratio;
w_pxl = wratio * w;
h_pxl = hratio * h;
stipple = (unsigned char*)malloc(w_pxl*h_pxl);
XTab = cdGetZoomTable(w_pxl, w, 0);
YTab = cdGetZoomTable(h_pxl, h, 0);
for (y=0; y<h_pxl; y++)
{
cy = YTab[y];
for (x=0; x<w_pxl; x++)
{
cx = XTab[x];
stipple[x + y*w_pxl] = fgbg[cx + cy*w];
}
}
cdCanvasStipple(canvas, w_pxl, h_pxl, stipple);
free(XTab);
free(YTab);
free(stipple);
}
void wdCanvasPattern(cdCanvas* canvas, int w, int h, const long *color, double w_mm, double h_mm)
{
long *pattern = 0;
int w_pxl, h_pxl, x, y, cx, cy;
int wratio, hratio;
int *XTab, *YTab;
cdCanvasMM2Pixel(canvas, w_mm, h_mm, &w_pxl, &h_pxl);
wratio = cdRound((double)w_pxl/(double)w);
hratio = cdRound((double)h_pxl/(double)h);
wratio = (wratio <= 0)? 1: wratio;
hratio = (hratio <= 0)? 1: hratio;
w_pxl = wratio * w;
h_pxl = hratio * h;
pattern = (long*)malloc(w_pxl*h_pxl*sizeof(long));
XTab = cdGetZoomTable(w_pxl, w, 0);
YTab = cdGetZoomTable(h_pxl, h, 0);
for (y=0; y<h_pxl; y++)
{
cy = YTab[y];
for (x=0; x<w_pxl; x++)
{
cx = XTab[x];
pattern[x + y*w_pxl] = color[cx + cy*w];
}
}
cdCanvasPattern(canvas, w_pxl, h_pxl, pattern);
free(XTab);
free(YTab);
free(pattern);
}
