mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/spice
synced 2025-12-27 07:29:32 +00:00
f8217d8b96
Instead of having two virtualizations of the canvas we push the virtualization into the canvas code itself. This not only avoids the duplication of this code, it also makes the exposed API for the canvas much smaller (in terms of exported API). It also lets us use the virtualization to implement basic support for operations in canvas_base which is then overridden by each canvas implementation.
108 lines
2.8 KiB
C++
108 lines
2.8 KiB
C++
/*
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Copyright (C) 2009 Red Hat, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "common.h"
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#include <stdint.h>
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#include "red_window.h"
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#include "red_cairo_canvas.h"
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#include "utils.h"
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#include "debug.h"
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#include "region.h"
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#include "red_pixmap_cairo.h"
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CCanvas::CCanvas(PixmapCache& pixmap_cache, PaletteCache& palette_cache,
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GlzDecoderWindow &glz_decoder_window)
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: Canvas (pixmap_cache, palette_cache, glz_decoder_window)
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, _pixmap (0)
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{
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}
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CCanvas::~CCanvas()
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{
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destroy();
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}
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void CCanvas::destroy()
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{
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if (_canvas) {
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_canvas->ops->destroy(_canvas);
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_canvas = NULL;
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}
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destroy_pixmap();
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}
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void CCanvas::destroy_pixmap()
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{
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delete _pixmap;
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_pixmap = NULL;
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}
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void CCanvas::create_pixmap(int width, int height, RedWindow *win)
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{
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_pixmap = new RedPixmapCairo(width, height, RedPixmap::RGB32, true, NULL, win);
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}
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void CCanvas::copy_pixels(const QRegion& region, RedDrawable& dest_dc)
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{
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pixman_box32_t *rects;
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int num_rects;
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rects = pixman_region32_rectangles((pixman_region32_t *)®ion, &num_rects);
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for (int i = 0; i < num_rects; i++) {
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SpiceRect r;
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r.left = rects[i].x1;
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r.top = rects[i].y1;
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r.right = rects[i].x2;
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r.bottom = rects[i].y2;
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dest_dc.copy_pixels(*_pixmap, r.left, r.top, r);
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}
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}
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void CCanvas::copy_pixels(const QRegion& region, RedDrawable* dest_dc, const PixmapHeader* pixmap)
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{
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copy_pixels(region, *dest_dc);
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}
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void CCanvas::set_mode(int width, int height, int depth, RedWindow *win)
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{
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pixman_image_t *surface;
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destroy();
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create_pixmap(width, height, win);
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surface = pixman_image_create_bits(PIXMAN_x8r8g8b8, width, height,
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(uint32_t *)_pixmap->get_data(),
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_pixmap->get_stride());
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if (surface == NULL) {
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THROW("create surface failed, out of memory");
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}
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if (!(_canvas = canvas_create(surface, depth,
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&pixmap_cache().base,
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&palette_cache().base,
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&glz_decoder()))) {
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THROW("create canvas failed");
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}
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pixman_image_unref (surface);
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}
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CanvasType CCanvas::get_pixmap_type()
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{
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return CANVAS_TYPE_CAIRO;
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}
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