mirror of https://github.com/pyrollo/vinace.git
124 lines
4.3 KiB
C++
124 lines
4.3 KiB
C++
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
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/*
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* Vinace
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* Copyright (C) P.Y. Rollo 2009 <dev@pyrollo.com>
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*
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* Vinace is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Vinace is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the 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 along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "c-gui-monitor.hpp"
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CGuiMonitor::CGuiMonitor(CVideoOutput *vo, char *imagefile) {
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this->vo = vo;
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this->background = Gdk::Pixbuf::create_from_file(imagefile);
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this->rendered = background->copy(); // Copy background
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xmargin = (background->get_width() - VIDEO_OUTPUT_WIDTH)/2;
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ymargin = background->get_height()/2 - VIDEO_OUTPUT_HEIGHT; // Pixels are twice as hight than they are wide
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set_size_request(rendered->get_width(), rendered->get_height());
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Glib::signal_timeout().connect(sigc::mem_fun(this, &CGuiMonitor::on_timer_event), /*40*/ 80 );
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}
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bool CGuiMonitor::on_expose_event(GdkEventExpose* ev) {
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rendered->render_to_drawable(this->get_window(), this->get_style()->get_black_gc(), 0, 0, 0, 0, -1, -1, Gdk::RGB_DITHER_NONE, 0, 0);
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}
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bool CGuiMonitor::on_timer_event() {
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render();
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return TRUE;
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}
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#define ADD_COL(c1, c2) (((c1)+(c2)<256)?((c1)+(c2)):255)
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//#define ADD_COL(c1, c2) (c2)
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void CGuiMonitor::render() {
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vo->render();
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int x, y, pixaddr, basey;
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int r, g ,b;
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int multx = rendered->get_n_channels();
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int multy = rendered->get_rowstride();
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char *vopixels = vo->get_pixels();
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guint8 *pbpixels = rendered->get_pixels();
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guint8 *bgpixels = background->get_pixels();
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// Reset top and left borders to background
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pixaddr = multx*xmargin + multy*(ymargin-1);
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for (x = 0; x<VIDEO_OUTPUT_WIDTH; x++) {
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pbpixels[pixaddr] = bgpixels[pixaddr];
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pbpixels[pixaddr+1] = bgpixels[pixaddr+1];
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pbpixels[pixaddr+2] = bgpixels[pixaddr+2];
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pixaddr+=multx;
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}
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pixaddr = multx*(xmargin-1) + multy*(ymargin);
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for (y = 0; y<VIDEO_OUTPUT_HEIGHT; y++) {
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pbpixels[pixaddr] = bgpixels[pixaddr];
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pbpixels[pixaddr+1] = bgpixels[pixaddr+1];
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pbpixels[pixaddr+2] = bgpixels[pixaddr+2];
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pixaddr+=multy;
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pbpixels[pixaddr] = bgpixels[pixaddr];
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pbpixels[pixaddr+1] = bgpixels[pixaddr+1];
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pbpixels[pixaddr+2] = bgpixels[pixaddr+2];
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pixaddr+=multy;
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}
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// Draw screen
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for (y = 0; y<VIDEO_OUTPUT_HEIGHT; y++) {
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basey = VIDEO_OUTPUT_WIDTH*y;
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pixaddr = multx*xmargin + multy*(y*2+ymargin);
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for (x = 0; x<VIDEO_OUTPUT_WIDTH; x++) {
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get_color(vopixels[x+basey], r, g, b);
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// Center pixel
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pbpixels[pixaddr ] = ADD_COL(bgpixels[pixaddr ],r);
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pbpixels[pixaddr+1] = ADD_COL(bgpixels[pixaddr+1],g);
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pbpixels[pixaddr+2] = ADD_COL(bgpixels[pixaddr+2],b);
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// Fade color
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r=r>>2; g=g>>2; b=b>>2;
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// Top pixel (mix with existing)
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pbpixels[pixaddr-multy ] = ADD_COL(pbpixels[pixaddr-multy ],r);
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pbpixels[pixaddr-multy+1] = ADD_COL(pbpixels[pixaddr-multy+1],g);
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pbpixels[pixaddr-multy+2] = ADD_COL(pbpixels[pixaddr-multy+2],b);
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// Left pixel (mix with existing)
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pbpixels[pixaddr-multx ] = ADD_COL(pbpixels[pixaddr-multx ],r);
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pbpixels[pixaddr-multx+1] = ADD_COL(pbpixels[pixaddr-multx+1],g);
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pbpixels[pixaddr-multx+2] = ADD_COL(pbpixels[pixaddr-multx+2],b);
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// Bottom pixel (mix with background)
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pbpixels[pixaddr+multy ] = ADD_COL(bgpixels[pixaddr+multy ],r);
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pbpixels[pixaddr+multy+1] = ADD_COL(bgpixels[pixaddr+multy+1],g);
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pbpixels[pixaddr+multy+2] = ADD_COL(bgpixels[pixaddr+multy+2],b);
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// Right pixel (mix with background)
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pbpixels[pixaddr+multx ] = ADD_COL(bgpixels[pixaddr+multx ],r);
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pbpixels[pixaddr+multx+1] = ADD_COL(bgpixels[pixaddr+multx+1],g);
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pbpixels[pixaddr+multx+2] = ADD_COL(bgpixels[pixaddr+multx+2],b);
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pixaddr += multx; // Next pixel please !
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}
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}
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// All the screen is dirty (almost... could be improved by creating a rectangle for the display)
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if (get_window())
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get_window()->invalidate_region(get_window()->get_visible_region());
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}
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