-/* xscreensaver, Copyright (c) 1991-2008 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1991-2009 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
*/
#import <stdlib.h>
+#import <stdint.h>
#import <Cocoa/Cocoa.h>
#import "jwxyz.h"
#import "jwxyz-timers.h"
XAllocColor (Display *dpy, Colormap cmap, XColor *color)
{
// store 32 bit ARGB in the pixel field.
- color->pixel = (( 0xFF << 24) |
+ // (The uint32_t is so that 0xFF000000 doesn't become 0xFFFFFFFFFF000000)
+ color->pixel = (uint32_t)
+ (( 0xFF << 24) |
(((color->red >> 8) & 0xFF) << 16) |
(((color->green >> 8) & 0xFF) << 8) |
(((color->blue >> 8) & 0xFF) ));
static unsigned long
ximage_getpixel_32 (XImage *ximage, int x, int y)
{
- return *((unsigned long *) ximage->data +
- (y * (ximage->bytes_per_line >> 2)) +
- x);
+ return ((unsigned long)
+ *((uint32_t *) ximage->data +
+ (y * (ximage->bytes_per_line >> 2)) +
+ x));
}
static int
ximage_putpixel_32 (XImage *ximage, int x, int y, unsigned long pixel)
{
- *((unsigned long *) ximage->data +
+ *((uint32_t *) ximage->data +
(y * (ximage->bytes_per_line >> 2)) +
- x) = pixel;
+ x) = (uint32_t) pixel;
return 0;
}
unsigned long plane_mask, int format)
{
const unsigned char *data = 0;
- int depth, ibpp, ibpl;
+ int depth, ibpp, ibpl, alpha_first_p;
NSBitmapImageRep *bm = 0;
Assert ((width < 65535), "improbably large width");
nsfrom.size.height = height;
[bm initWithFocusedViewRect:nsfrom];
depth = 32;
+ alpha_first_p = ([bm bitmapFormat] & NSAlphaFirstBitmapFormat);
ibpp = [bm bitsPerPixel];
ibpl = [bm bytesPerRow];
data = [bm bitmapData];
/* both PPC and Intel use word-ordered ARGB frame buffers, which
means that on Intel it is BGRA when viewed by bytes (And BGR
when using 24bpp packing).
+
+ BUT! Intel-64 stores alpha at the other end! 32bit=RGBA, 64bit=ARGB.
+ The NSAlphaFirstBitmapFormat bit in bitmapFormat seems to be the
+ indicator of this latest kink.
*/
int xx, yy;
if (depth == 1) {
const unsigned char *iline2 = iline;
for (xx = 0; xx < width; xx++) {
- iline2++; // ignore b or a
- iline2++; // ignore g or r
- unsigned char r = *iline2++; // r or g
- if (ibpp == 32) iline2++; // ignore a or b
+ iline2++; // ignore R or A or A or B
+ iline2++; // ignore G or B or R or G
+ unsigned char r = *iline2++; // use B or G or G or R
+ if (ibpp == 32) iline2++; // ignore A or R or B or A
XPutPixel (image, xx, yy, (r ? 1 : 0));
}
const unsigned char *iline2 = iline;
unsigned char *oline2 = oline;
- for (xx = 0; xx < width; xx++) {
- unsigned char a = (ibpp == 32 ? (*iline2++) : 0xFF);
- unsigned char r = *iline2++;
- unsigned char g = *iline2++;
- unsigned char b = *iline2++;
- unsigned long pixel = ((a << 24) |
- (r << 16) |
- (g << 8) |
- (b << 0));
- *((unsigned int *) oline2) = pixel;
- oline2 += 4;
- }
+ if (alpha_first_p) // ARGB
+ for (xx = 0; xx < width; xx++) {
+ unsigned char a = (ibpp == 32 ? (*iline2++) : 0xFF);
+ unsigned char r = *iline2++;
+ unsigned char g = *iline2++;
+ unsigned char b = *iline2++;
+ uint32_t pixel = ((a << 24) |
+ (r << 16) |
+ (g << 8) |
+ (b << 0));
+ *((uint32_t *) oline2) = pixel;
+ oline2 += 4;
+ }
+ else // RGBA
+ for (xx = 0; xx < width; xx++) {
+ unsigned char r = *iline2++;
+ unsigned char g = *iline2++;
+ unsigned char b = *iline2++;
+ unsigned char a = (ibpp == 32 ? (*iline2++) : 0xFF);
+ uint32_t pixel = ((a << 24) |
+ (r << 16) |
+ (g << 8) |
+ (b << 0));
+ *((uint32_t *) oline2) = pixel;
+ oline2 += 4;
+ }
+
oline += obpl;
iline += ibpl;
}
}
-/* This translates the NSFont into the numbers that aglUseFont() wants.
- */
-int
-jwxyz_font_info (Font f, int *size_ret, int *face_ret)
-{
- char *name = strdup (f->ps_name);
- char *dash = strchr (name, '-');
- int flags = 0;
- int size = f->size;
- if (dash) {
- // 0 = plain; 1=B; 2=I; 3=BI; 4=U; 5=UB; etc.
- if (strcasestr (dash, "bold")) flags |= 1;
- if (strcasestr (dash, "italic")) flags |= 2;
- if (strcasestr (dash, "oblique")) flags |= 2;
- *dash = 0;
- }
- NSString *nname = [NSString stringWithCString:name
- encoding:NSUTF8StringEncoding];
- ATSFontFamilyRef id =
- ATSFontFamilyFindFromName ((CFStringRef) nname, kATSOptionFlagsDefault);
-
-
- // WTF? aglUseFont gets a BadValue if size is small!!
- if (size < 9) size = 9;
-
- //NSLog (@"font %s %.1f => %d %d %d", f->ps_name, f->size, id, flags, size);
- Assert (id >= 0, "no ATS font family");
-
- *size_ret = size;
- *face_ret = flags;
- return id;
-}
-
-
XFontStruct *
XLoadQueryFont (Display *dpy, const char *name)
{
set_font (d->cgc, gc);
CGContextSetTextDrawingMode (d->cgc, kCGTextFill);
- if (! gc->gcv.antialias_p)
- CGContextSetShouldAntialias (d->cgc, YES); // always antialias text
+ if (gc->gcv.antialias_p)
+ CGContextSetShouldAntialias (d->cgc, YES);
CGContextShowTextAtPoint (d->cgc,
wr.origin.x + x,
wr.origin.y + wr.size.height - y,
projects / xscreensaver / blobdiff