49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
#include "xlib.h"
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#include "scheme48.h"
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s48_value Free_Colormap (s48_value Xcolormap, s48_value Xdisplay) {
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XFreeColormap(EXTRACT_DISPLAY(Xdisplay), EXTRACT_COLORMAP(Xcolormap));
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return S48_UNSPECIFIC;
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}
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s48_value Alloc_Color(s48_value Xcolormap, s48_value Xcolor,
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s48_value Xdisplay) {
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XColor* cp = EXTRACT_COLOR(Xcolor);
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if (!XAllocColor(EXTRACT_DISPLAY(Xdisplay), EXTRACT_COLORMAP(Xcolormap), cp))
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return S48_FALSE;
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else
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return ENTER_PIXEL(cp->pixel);
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}
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s48_value Alloc_Named_Color(s48_value Xcolormap, s48_value color_name,
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s48_value Xdisplay) {
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XColor screen, exact;
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int r;
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s48_value ret;
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S48_DECLARE_GC_PROTECT(1);
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r = XAllocNamedColor (EXTRACT_DISPLAY(Xdisplay), EXTRACT_COLORMAP(Xcolormap),
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s48_extract_string(color_name),
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&screen, &exact);
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if (!r) ret = S48_FALSE;
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else {
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S48_GC_PROTECT_1(ret);
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ret = s48_cons(Int_Extract_RGB_Values(exact), S48_NULL);
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ret = s48_cons(Int_Extract_RGB_Values(screen), ret);
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ret = s48_cons(ENTER_PIXEL(screen.pixel), ret);
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}
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S48_GC_UNPROTECT();
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return ret;
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}
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void s48_init_colormap(void) {
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S48_EXPORT_FUNCTION(Free_Colormap);
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S48_EXPORT_FUNCTION(Alloc_Color);
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S48_EXPORT_FUNCTION(Alloc_Named_Color);
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}
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