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/*----------------------------------------------------------------------* |
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* File: rxvtimg.h |
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*----------------------------------------------------------------------* |
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* |
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* All portions of code are copyright by their respective author/s. |
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* Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de> |
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* Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*---------------------------------------------------------------------*/ |
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|
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#ifndef IMG_H |
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#define IMG_H |
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|
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#if HAVE_BG_PIXMAP |
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#define HAVE_IMG 1 |
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#endif |
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|
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#if HAVE_IMG |
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|
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#define float_to_component(d) (int32_t)((d) * 65535.99) |
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|
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#include <X11/extensions/Xrender.h> |
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|
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struct rxvt_img |
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{ |
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typedef double nv; |
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|
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// *could* also hold the Pixmap itself |
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struct pixref |
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{ |
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int cnt; |
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int w, h; |
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bool ours; // false if we don't own the pixmap at all |
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|
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pixref (int w, int h) |
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: cnt(1), w(w), h(h), ours(true) |
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{ |
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} |
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}; |
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|
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rxvt_screen *s; |
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Pixmap pm; |
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pixref *ref; // shared refcnt |
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int x, y, w, h, repeat; |
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XRenderPictFormat *format; |
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|
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rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat = RepeatNormal); |
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rxvt_img (const rxvt_img &img); |
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void alloc (); |
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|
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# if HAVE_PIXBUF |
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static rxvt_img *new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb); // from pixbuf |
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static rxvt_img *new_from_file (rxvt_screen *s, const char *filename); // via pixbuf |
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# endif |
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static rxvt_img *new_from_root (rxvt_screen *s); // get root pixmap |
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|
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~rxvt_img (); |
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|
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Pixmap steal () |
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{ |
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ref->ours = false; |
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return pm; |
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} |
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|
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// inplace |
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void move (int dx, int dy) |
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{ |
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x += dx; |
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y += dy; |
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} |
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|
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void repeat_mode (int repeat) |
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{ |
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this->repeat = repeat; |
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} |
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|
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void unshare (); // prepare for write |
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void fill (const rgba &c); |
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void fill (const rgba &c, int x, int y, int w, int h); |
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void add_alpha (); |
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//void linear_gradient (const XLinearGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
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//void radial_gradient (const XRadialGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
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//void conical_gradient (const XConicalGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
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|
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void brightness (int32_t r, int32_t g, int32_t b, int32_t a); |
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void contrast (int32_t r, int32_t g, int32_t b, int32_t a); |
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|
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void brightness (nv r, nv g, nv b, nv a = 1.) |
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{ |
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brightness (float_to_component (r), |
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float_to_component (g), |
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float_to_component (b), |
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float_to_component (a)); |
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} |
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|
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void contrast (nv r, nv g, nv b, nv a = 1.) |
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{ |
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contrast (float_to_component (r), |
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float_to_component (g), |
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float_to_component (b), |
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float_to_component (a)); |
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} |
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|
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void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1.); |
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#if 0 |
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void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1., |
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nv px, nv py, nv qx, nv qy, nv rx, nv ry, nv sx, nv sy); |
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#endif |
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|
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// copy |
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rxvt_img *reify (); // make x, y 0, make real width/height |
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rxvt_img *blur (int rh, int rv); |
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rxvt_img *clone (); |
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rxvt_img *sub_rect (int x, int y, int width, int height); |
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rxvt_img *transform (const nv matrix[3][3]); |
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rxvt_img *scale (int new_width, int new_height); |
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rxvt_img *rotate (int cx, int cy, nv phi); |
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rxvt_img *convert_format (XRenderPictFormat *format, const rgba &bg); |
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rxvt_img *tint (const rgba &c); |
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rxvt_img *shade (nv factor, rgba c = rgba (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC)); |
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rxvt_img *filter (const char *name, int nparams = 0, nv *params = 0); |
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rxvt_img *muladd (nv mul, nv add); // general multiply and add, implemented as the biggest hack ever :/ |
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|
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// egregious helper category |
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rxvt_img *replace (rxvt_img *&p) |
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{ |
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delete p; |
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p = this; |
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return this; |
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} |
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|
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/* these are considered private */ |
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void destroy (); |
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rxvt_img *new_empty (); |
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Picture picture (); |
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rxvt_img *transform (const nv *matrix); |
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}; |
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|
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#endif |
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|
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#endif |
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