scx/c/libs/xpm.c

107 lines
3.2 KiB
C

#include "../xlib/xlib.h"
#include <X11/xpm.h>
/*void ExtractColorsymbols(s48_value v, XpmColorSymbols** CS, unsigned int* n) {
int i; int len = S48_VECTOR_LENGTH
*/
void Attribs_To_XpmAttributes(s48_value attribs,
XpmAttributes* XA) {
unsigned long mask = s48_extract_integer(S48_CAR(attribs));
s48_value v = S48_CDR(attribs);
if (mask & XpmVisual)
XA->visual = SCX_EXTRACT_VISUAL(v);
if (mask & XpmColormap)
XA->colormap = SCX_EXTRACT_COLORMAP(v);
if (mask & XpmDepth)
XA->depth = s48_extract_integer(v);
if ((mask & XpmReturnPixels) && (S48_FALSE_P(v)))
mask = mask & (~XpmReturnPixels);
if (mask & XpmExactColors)
XA->exactColors = s48_extract_integer(v);
if ((mask & XpmReturnAllocPixels) && (S48_FALSE_P(v)))
mask = mask & (~XpmReturnAllocPixels);
if (mask & XpmAllocCloseColors)
XA->alloc_close_colors = s48_extract_integer(v);
if (mask & XpmBitmapFormat)
XA->bitmap_format = s48_extract_integer(v);
// if (mask & XpmColorSymbols)
// XA->colorsyms = ExtractColorsymbols(v, XA->colorsymbols, XA->numsymbols);
XA->valuemask = mask;
return;
}
s48_value Make_XPM_Result(Pixmap* pixmap, Pixmap* shapemask,
XpmAttributes* XA) {
s48_value res = s48_make_vector(6, S48_FALSE);
S48_DECLARE_GC_PROTECT(1);
S48_GC_PROTECT_1(res);
S48_VECTOR_SET(res, 0, SCX_ENTER_PIXMAP(*pixmap));
S48_VECTOR_SET(res, 1, s48_cons(s48_enter_fixnum(XA->width),
s48_enter_fixnum(XA->height)));
if (XA->valuemask & XpmHotspot != 0)
S48_VECTOR_SET(res, 2, s48_cons(s48_enter_fixnum(XA->x_hotspot),
s48_enter_fixnum(XA->y_hotspot)));
S48_VECTOR_SET(res, 3, SCX_ENTER_PIXMAP(*shapemask));
S48_GC_UNPROTECT();
return res;
}
s48_value scx_Create_Pixmap_From_Data(s48_value Xdisplay, s48_value Xdrawable,
s48_value data,
s48_value attribute_vector) {
Pixmap pixmap, shapemask;
XpmAttributes XA;
int r, i, n = S48_VECTOR_LENGTH(data);
char* d[n];
for (i=0; i < n; i++)
d[i] = s48_extract_string(S48_VECTOR_REF(data, i));
Attribs_To_XpmAttributes(attribute_vector, &XA);
r = XpmCreatePixmapFromData( SCX_EXTRACT_DISPLAY(Xdisplay),
SCX_EXTRACT_DRAWABLE(Xdrawable),
d,
&pixmap, &shapemask,
&XA );
if (r == XpmNoMemory) return s48_enter_fixnum(0);
else if (r == XpmFileInvalid) return s48_enter_fixnum(1);
else if (r == XpmSuccess)
return Make_XPM_Result(&pixmap, &shapemask, &XA);
}
s48_value scx_Read_File_To_Pixmap(s48_value Xdisplay, s48_value Xdrawable,
s48_value filename,
s48_value attribute_vector) {
Pixmap pixmap, shapemask;
XpmAttributes XA;
int r;
Attribs_To_XpmAttributes(attribute_vector, &XA);
r = XpmReadFileToPixmap( SCX_EXTRACT_DISPLAY(Xdisplay),
SCX_EXTRACT_DRAWABLE(Xdrawable),
s48_extract_string(filename),
&pixmap, &shapemask,
&XA );
if (r == XpmNoMemory) return s48_enter_fixnum(0);
else if (r == XpmFileInvalid) return s48_enter_fixnum(1);
else if (r == XpmOpenFailed) return s48_enter_fixnum(2);
else if (r == XpmSuccess)
return Make_XPM_Result(&pixmap, &shapemask, &XA);
}
void scx_init_xpm(void) {
S48_EXPORT_FUNCTION(scx_Create_Pixmap_From_Data);
S48_EXPORT_FUNCTION(scx_Read_File_To_Pixmap);
}