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repo: rxvt-unicode-sixel action: commit revision: path_from: revision_from: 45ba5c1adc7b6d2bc4e9b1bacbe27cd2457527a4: path_to: revision_to:
commit 45ba5c1adc7b6d2bc4e9b1bacbe27cd2457527a4 Author: Marc Lehmann <schmorp@schmorp.de> Date: Sun Jun 17 21:58:18 2012 +0000 *** empty log message *** diff --git a/src/background.C b/src/background.C
--- a/src/background.C +++ b/src/background.C @@ -321,10 +321,7 @@ rxvt_term::render_image (rxvt_image &image) img->sub_rect (-x, -y, parent_width, parent_height)->replace (img); if (bg_flags & BG_IS_VALID) - { - double factor = image.alpha * 1. / 0xffff; - bg_img->blend (img, factor)->replace (img); - } + bg_img->draw (img, PictOpOver, image.alpha * 1. / 0xffff); XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); img->convert_format (format, pix_colors [Color_bg])->replace (img); diff --git a/src/perl/background b/src/perl/background
--- a/src/perl/background +++ b/src/perl/background @@ -260,7 +260,7 @@ way. =item root Returns the root window pixmap, that is, hopefully, the background image -of your screen. The image is set to extend mode. +of your screen. This function makes your expression root sensitive, that means it will be reevaluated when the bg image changes. @@ -306,7 +306,8 @@ multiple copies of the same image to apply different effects to. =item merge $img ... Takes any number of images and merges them together, creating a single -image containing them all. +image containing them all. The tiling mode of the first image is used as +the tiling mdoe of the resulting image. This function is called automatically when an expression returns multiple images. @@ -337,6 +338,7 @@ images. } my $base = $self->new_img (urxvt::PictStandardARGB32, $x0, $y0, $x1 - $x0, $y1 - $y0); + $base->repeat_mode ($_[0]->repeat_mode); $base->fill ([0, 0, 0, 0]); $base->draw ($_) diff --git a/src/rxvtimg.C b/src/rxvtimg.C
--- a/src/rxvtimg.C +++ b/src/rxvtimg.C @@ -32,7 +32,6 @@ typedef rxvt_img::nv nv; namespace { - struct mat3x3 { nv v[3][3]; @@ -53,7 +52,7 @@ namespace v[2][0] = v31; v[2][1] = v32; v[2][2] = v33; } - mat3x3 invert (); + mat3x3 inverse (); nv *operator [](int i) { return &v[i][0]; } const nv *operator [](int i) const { return &v[i][0]; } @@ -78,7 +77,7 @@ namespace }; mat3x3 - mat3x3::invert () + mat3x3::inverse () { mat3x3 &m = *this; mat3x3 inv; @@ -152,39 +151,81 @@ namespace ); } -} + struct composer + { + rxvt_img *srcimg, *dstimg; + Picture src, dst, msk; + Display *dpy; -#if 0 -struct pict -{ - Display *dpy; - Picture pic; + ecb_noinline + composer (rxvt_img *srcimg, rxvt_img *dstimg = 0) + : srcimg (srcimg), dstimg (dstimg), msk (0) + { + if (!this->dstimg) + this->dstimg = srcimg->new_empty (); + else if (!this->dstimg->pm) // somewhat unsatisfying + this->dstimg->alloc (); + + dpy = srcimg->s->dpy; + src = srcimg->picture (); + dst = this->dstimg->picture (); + } - operator Picture () const - { - return pic; - } + ecb_noinline + void mask (bool rgb = true, int x = 1, int y = 1) + { + Pixmap pixmap = XCreatePixmap (dpy, srcimg->pm, x, y, rgb ? 32 : 8); - pict () - : pic (0) - { - } + XRenderPictFormat *format = XRenderFindStandardFormat (dpy, rgb ? PictStandardARGB32 : PictStandardA8); + XRenderPictureAttributes pa; + pa.repeat = RepeatNormal; + pa.component_alpha = rgb; + msk = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); - pict (rxvt_img *img, XRenderPictFormat *format = 0) - : dpy (img->s->display->dpy) - { - XRenderPictureAttributes pa; - pa.repeat = img->repeat; - pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa); - } + XFreePixmap (dpy, pixmap); - ~pict () - { - if (pic) - XRenderFreePicture (dpy, pic); - } -}; -#endif + ecb_assume (msk); + } + + // CreateSolidFill creates a very very very weird picture + void mask (const rgba &c) + { + XRenderColor rc = { + c.r * c.a / 65535, + c.g * c.a / 65535, + c.b * c.a / 65535, + c.a + }; + msk = XRenderCreateSolidFill (dpy, &rc); + ecb_assume (msk); + } + + void fill (const rgba &c) + { + XRenderColor rc = { + c.r * c.a / 65535, + c.g * c.a / 65535, + c.b * c.a / 65535, + c.a + }; + + XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1); + } + + operator rxvt_img *() + { + return dstimg; + } + + ecb_noinline + ~composer () + { + XRenderFreePicture (dpy, src); + XRenderFreePicture (dpy, dst); + if (msk) XRenderFreePicture (dpy, msk); + } + }; +} static XRenderPictFormat * find_alpha_format_for (Display *dpy, XRenderPictFormat *format) @@ -221,11 +262,11 @@ rxvt_img::rxvt_img (const rxvt_img &img) rxvt_img * rxvt_img::new_from_root (rxvt_screen *s) { - Display *dpy = s->display->dpy; + Display *dpy = s->dpy; unsigned int root_pm_w, root_pm_h; - Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); + Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]); if (root_pixmap == None) - root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); + root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]); if (root_pixmap == None) return 0; @@ -258,7 +299,7 @@ rxvt_img::new_from_root (rxvt_screen *s) rxvt_img * rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) { - Display *dpy = s->display->dpy; + Display *dpy = s->dpy; int width = gdk_pixbuf_get_width (pb); int height = gdk_pixbuf_get_height (pb); @@ -381,7 +422,7 @@ rxvt_img::destroy () return; if (pm && ref->ours) - XFreePixmap (s->display->dpy, pm); + XFreePixmap (s->dpy, pm); delete ref; } @@ -394,14 +435,23 @@ rxvt_img::~rxvt_img () void rxvt_img::alloc () { - pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); + pm = XCreatePixmap (s->dpy, s->display->root, w, h, format->depth); ref = new pixref (w, h); } +rxvt_img * +rxvt_img::new_empty () +{ + rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); + img->alloc (); + + return img; +} + Picture rxvt_img::picture () { - Display *dpy = s->display->dpy; + Display *dpy = s->dpy; XRenderPictureAttributes pa; pa.repeat = repeat; @@ -416,10 +466,10 @@ rxvt_img::unshare () if (ref->cnt == 1 && ref->ours) return; - Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); - GC gc = XCreateGC (s->display->dpy, pm, 0, 0); - XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); - XFreeGC (s->display->dpy, gc); + Pixmap pm2 = XCreatePixmap (s->dpy, s->display->root, ref->w, ref->h, format->depth); + GC gc = XCreateGC (s->dpy, pm, 0, 0); + XCopyArea (s->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); + XFreeGC (s->dpy, gc); destroy (); @@ -432,7 +482,7 @@ rxvt_img::fill (const rgba &c) { XRenderColor rc = { c.r, c.g, c.b, c.a }; - Display *dpy = s->display->dpy; + Display *dpy = s->dpy; Picture src = picture (); XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); XRenderFreePicture (dpy, src); @@ -444,18 +494,11 @@ rxvt_img::add_alpha () if (format->direct.alphaMask) return; - Display *dpy = s->display->dpy; - - rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat); - img->alloc (); - - Picture src = picture (); - Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); - - XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); + composer cc (this, new rxvt_img (s, find_alpha_format_for (s->dpy, format), x, y, w, h, repeat)); + + XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); - XRenderFreePicture (dpy, src); - XRenderFreePicture (dpy, dst); + rxvt_img *img = cc; ::swap (img->ref, ref); ::swap (img->pm , pm ); @@ -490,12 +533,11 @@ rxvt_img::blur (int rh, int rv) if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) return clone (); - Display *dpy = s->display->dpy; + Display *dpy = s->dpy; int size = max (rh, rv) * 2 + 1; nv *kernel = (nv *)malloc (size * sizeof (nv)); XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); - rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); - img->alloc (); + rxvt_img *img = new_empty (); XRenderPictureAttributes pa; pa.repeat = RepeatPad; @@ -548,23 +590,7 @@ rxvt_img::blur (int rh, int rv) return img; } -static Picture -create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) -{ - Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); - - XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); - XRenderPictureAttributes pa; - pa.repeat = RepeatNormal; - pa.component_alpha = component_alpha; - Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); - - XFreePixmap (dpy, pixmap); - - return mask; -} - -static void +ecb_noinline static void extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) { int32_t x = clamp (c, cl0, cl1); @@ -572,7 +598,7 @@ extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) xc = x; } -static bool +ecb_noinline static bool extract (int32_t cl0, int32_t cl1, int32_t &r, int32_t &g, int32_t &b, int32_t &a, unsigned short &xr, unsigned short &xg, unsigned short &xb, unsigned short &xa) { extract (cl0, cl1, r, xr); @@ -588,7 +614,7 @@ rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) { unshare (); - Display *dpy = s->display->dpy; + Display *dpy = s->dpy; Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); // loop should not be needed for brightness, as only -1..1 makes sense @@ -622,20 +648,16 @@ rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) if (r < 0 || g < 0 || b < 0 || a < 0) rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); - rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); - img->alloc (); - img->fill (rgba (0, 0, 0, 0)); - // premultiply (yeah, these are not exact, sue me or fix it) r = (r * (a >> 8)) >> 8; g = (g * (a >> 8)) >> 8; b = (b * (a >> 8)) >> 8; - Display *dpy = s->display->dpy; + composer cc (this); + rxvt_img *img = cc; + img->fill (rgba (0, 0, 0, 0)); - Picture src = picture (); - Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); - Picture mul = create_xrender_mask (dpy, pm, True, True); + cc.mask (true); //TODO: this operator does not yet implement some useful contrast while (r | g | b | a) @@ -645,15 +667,11 @@ rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) { - XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); - XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); + XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); + XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); } } - XRenderFreePicture (dpy, mul); - XRenderFreePicture (dpy, dst); - XRenderFreePicture (dpy, src); - ::swap (img->ref, ref); ::swap (img->pm , pm ); @@ -665,25 +683,12 @@ rxvt_img::draw (rxvt_img *img, int op, nv mask) { unshare (); - Display *dpy = s->display->dpy; - Picture src = img->picture (); - Picture dst = picture (); - Picture mask_p = 0; - + composer cc (img, this); + if (mask != 1.) - { - mask_p = create_xrender_mask (dpy, img->pm, False, False); - XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) }; - XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); - } - - XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); + cc.mask (rgba (0, 0, 0, float_to_component (mask))); - XRenderFreePicture (dpy, src); - XRenderFreePicture (dpy, dst); - - if (mask_p) - XRenderFreePicture (dpy, mask_p); + XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); } rxvt_img * @@ -698,32 +703,26 @@ rxvt_img::reify () if (x == 0 && y == 0 && w == ref->w && h == ref->h) return clone (); - Display *dpy = s->display->dpy; + Display *dpy = s->dpy; // add an alpha channel if... bool alpha = !format->direct.alphaMask // pixmap has none yet && (x || y) // we need one because of non-zero offset && repeat == RepeatNone; // and we have no good pixels to fill with - rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); - img->alloc (); - - Picture src = picture (); - Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); + composer cc (this, new rxvt_img (s, alpha ? find_alpha_format_for (s->dpy, format) : format, + 0, 0, w, h, repeat)); if (alpha) { XRenderColor rc = { 0, 0, 0, 0 }; - XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles - XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h); + XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles + XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h); } else - XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h); + XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h); - XRenderFreePicture (dpy, src); - XRenderFreePicture (dpy, dst); - - return img; + return cc; } rxvt_img * @@ -759,13 +758,13 @@ rxvt_img::transform (const nv *matrix) mat3x3 m (matrix); // calculate new pixel bounding box coordinates - nv r[2], rmin[2], rmax[2]; + nv rmin[2], rmax[2]; for (int i = 0; i < 2; ++i) { nv v; - v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v; + v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); @@ -781,16 +780,9 @@ rxvt_img::transform (const nv *matrix) int new_width = ceil (rmax [0] - rmin [0]); int new_height = ceil (rmax [1] - rmin [1]); - m = mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y); + mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse (); - mat3x3 inv = m.invert (); - - rxvt_img *img = new rxvt_img (s, format, nx, ny, new_width, new_height, repeat); - img->alloc (); - - Display *dpy = s->display->dpy; - Picture src = picture (); - Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); + composer cc (this, new rxvt_img (s, format, nx, ny, new_width, new_height, repeat)); XTransform xfrm; @@ -798,14 +790,11 @@ rxvt_img::transform (const nv *matrix) for (int j = 0; j < 3; ++j) xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); - XRenderSetPictureFilter (dpy, src, "good", 0, 0); - XRenderSetPictureTransform (dpy, src, &xfrm); - XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height); - - XRenderFreePicture (dpy, src); - XRenderFreePicture (dpy, dst); + XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0); + XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm); + XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height); - return img; + return cc; } rxvt_img * @@ -848,55 +837,53 @@ rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) if (new_format == format) return clone (); - rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); - img->alloc (); + composer cc (this, new rxvt_img (s, new_format, x, y, w, h, repeat)); - Display *dpy = s->display->dpy; - Picture src = picture (); - Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); int op = PictOpSrc; if (format->direct.alphaMask && !new_format->direct.alphaMask) { // does it have to be that complicated XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; - XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); + XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h); op = PictOpOver; } - XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); + XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); - XRenderFreePicture (dpy, src); - XRenderFreePicture (dpy, dst); + return cc; +} - return img; +rxvt_img * +rxvt_img::tint (const rgba &c) +{ + composer cc (this); + cc.mask (true); + cc.fill (c); + + XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); + + return cc; } rxvt_img * -rxvt_img::blend (rxvt_img *img, nv factor) +rxvt_img::filter (const char *name, int nparams, nv *params) { - rxvt_img *img2 = clone (); - Display *dpy = s->display->dpy; - Picture src = img->picture (); - Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); - Picture mask = create_xrender_mask (dpy, img->pm, False, False); + rxvt_img *img = new_empty (); - XRenderColor mask_c; + composer cc (img); - mask_c.alpha = float_to_component (factor); - mask_c.red = - mask_c.green = - mask_c.blue = 0; - XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); + XFixed *xparams = rxvt_temp_buf<XFixed> (nparams); - XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); + for (int i = 0; i < nparams; ++i) + xparams [i] = XDoubleToFixed (params [i]); - XRenderFreePicture (dpy, src); - XRenderFreePicture (dpy, dst); - XRenderFreePicture (dpy, mask); + XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams); + + XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h); - return img2; + return cc; } #endif diff --git a/src/rxvtimg.h b/src/rxvtimg.h
--- a/src/rxvtimg.h +++ b/src/rxvtimg.h @@ -127,7 +127,8 @@ struct rxvt_img rxvt_img *scale (int new_width, int new_height); rxvt_img *rotate (int cx, int cy, nv phi); rxvt_img *convert_format (XRenderPictFormat *format, const rgba &bg); - rxvt_img *blend (rxvt_img *img, nv factor = 1.); + rxvt_img *tint (const rgba &c); + rxvt_img *filter (const char *name, int nparams = 0, nv *params = 0); // egregiuous helper category rxvt_img *replace (rxvt_img *&p) @@ -137,9 +138,9 @@ struct rxvt_img return this; } -private: - + /* these are considered private */ void destroy (); + rxvt_img *new_empty (); Picture picture (); rxvt_img *transform (const nv *matrix); }; diff --git a/src/rxvtperl.xs b/src/rxvtperl.xs
--- a/src/rxvtperl.xs +++ b/src/rxvtperl.xs @@ -2284,29 +2284,19 @@ rxvt_img::geometry () int rxvt_img::x () + ALIAS: + x = 0 + y = 1 + w = 2 + h = 3 CODE: - RETVAL = THIS->x; - OUTPUT: - RETVAL - -int -rxvt_img::y () - CODE: - RETVAL = THIS->y; - OUTPUT: - RETVAL - -int -rxvt_img::w () - CODE: - RETVAL = THIS->w; - OUTPUT: - RETVAL - -int -rxvt_img::h () - CODE: - RETVAL = THIS->h; + switch (ix) + { + case 0: RETVAL = THIS->x; break; + case 1: RETVAL = THIS->y; break; + case 2: RETVAL = THIS->w; break; + case 3: RETVAL = THIS->h; break; + } OUTPUT: RETVAL @@ -2328,12 +2318,15 @@ rxvt_img::DESTROY () CODE: delete THIS; +void +rxvt_img::add_alpha () + void rxvt_img::unshare () -int +void rxvt_img::repeat_mode (render_repeat_mode repeat = 0) - CODE: + PPCODE: if (items >= 2) THIS->repeat_mode (repeat); if (GIMME_V != G_VOID) @@ -2379,5 +2372,36 @@ rxvt_img::scale (int new_width, int new_height) rxvt_img * rxvt_img::rotate (int x, int y, rxvt_img::nv phi) +void +rxvt_img::tint (SV *c) + INIT: + rgba cc = parse_rgba (c, THIS->s); + C_ARGS: cc + +rxvt_img * +rxvt_img::filter (octet_string name, SV *params = &PL_sv_undef) + CODE: + rxvt_img::nv *vparams = 0; + int nparams = 0; + + if (SvOK (params)) + { + // we overlay rxvt_temp_buf, what a hack + assert (sizeof (rxvt_img::nv) >= sizeof (int)); + + if (!SvROK (params) || SvTYPE (SvRV (params)) != SVt_PVAV) + croak ("rxvt_img::filter: params must be an array reference with parameter values"); + + nparams = av_len ((AV *)SvRV (params)) + 1; + vparams = rxvt_temp_buf<rxvt_img::nv> (nparams); + + for (int i = 0; i < nparams; ++i) + vparams [i] = SvNV (*av_fetch ((AV *)SvRV (params), i, 1)); + } + + RETVAL = THIS->filter (name, nparams, vparams); + OUTPUT: + RETVAL + #endif
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