mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/win32-vd_agent
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0fd4882477
This will make easier to change code that handle images. Signed-off-by: Frediano Ziglio <fziglio@redhat.com> Acked-by: Christophe Fergeau <cfergeau@redhat.com>
89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
/*
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Copyright (C) 2013-2017 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 <spice/macros.h>
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#include "vdcommon.h"
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#include "image.h"
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#include "ximage.h"
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typedef struct ImageType {
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uint32_t type;
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DWORD cximage_format;
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} ImageType;
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static const ImageType image_types[] = {
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{VD_AGENT_CLIPBOARD_IMAGE_PNG, CXIMAGE_FORMAT_PNG},
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{VD_AGENT_CLIPBOARD_IMAGE_BMP, CXIMAGE_FORMAT_BMP},
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};
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static DWORD get_cximage_format(uint32_t type)
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{
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for (unsigned int i = 0; i < SPICE_N_ELEMENTS(image_types); i++) {
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if (image_types[i].type == type) {
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return image_types[i].cximage_format;
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}
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}
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return 0;
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}
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HANDLE get_image_handle(const VDAgentClipboard& clipboard, uint32_t size, UINT&)
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{
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HANDLE clip_data;
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DWORD cximage_format = get_cximage_format(clipboard.type);
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ASSERT(cximage_format);
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CxImage image((BYTE*)clipboard.data, size, cximage_format);
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clip_data = image.CopyToHandle();
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return clip_data;
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}
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uint8_t* get_raw_clipboard_image(const VDAgentClipboardRequest& clipboard_request,
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HANDLE clip_data, long& new_size)
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{
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new_size = 0;
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CxImage image;
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uint8_t *new_data = NULL;
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DWORD cximage_format = get_cximage_format(clipboard_request.type);
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HPALETTE pal = 0;
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ASSERT(cximage_format);
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if (IsClipboardFormatAvailable(CF_PALETTE)) {
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pal = (HPALETTE)GetClipboardData(CF_PALETTE);
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}
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if (!image.CreateFromHBITMAP((HBITMAP)clip_data, pal)) {
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vd_printf("Image create from handle failed");
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return NULL;
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}
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if (!image.Encode(new_data, new_size, cximage_format)) {
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vd_printf("Image encode to type %u failed", clipboard_request.type);
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return NULL;
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}
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vd_printf("Image encoded to %lu bytes", new_size);
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return new_data;
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}
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void free_raw_clipboard_image(uint8_t *data)
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{
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// this is really just a free however is better to make
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// the free from CxImage code as on Windows the free
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// can be different between libraries
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CxImage image;
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image.FreeMemory(data);
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}
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