+++ /dev/null
-/*
- * Copyright (C) 2001,2002 Constantin Kaplinsky. All Rights Reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
-
-/*
- * cursor.c - code to support cursor shape updates (XCursor and
- * RichCursor preudo-encodings).
- */
-
-#include <rfb/rfbclient.h>
-
-
-#define OPER_SAVE 0
-#define OPER_RESTORE 1
-
-#define RGB24_TO_PIXEL(bpp,r,g,b) \
- ((((uint##bpp##_t)(r) & 0xFF) * client->format.redMax + 127) / 255 \
- << client->format.redShift | \
- (((uint##bpp##_t)(g) & 0xFF) * client->format.greenMax + 127) / 255 \
- << client->format.greenShift | \
- (((uint##bpp##_t)(b) & 0xFF) * client->format.blueMax + 127) / 255 \
- << client->format.blueShift)
-
-
-/*********************************************************************
- * HandleCursorShape(). Support for XCursor and RichCursor shape
- * updates. We emulate cursor operating on the frame buffer (that is
- * why we call it "software cursor").
- ********************************************************************/
-
-rfbBool HandleCursorShape(rfbClient* client,int xhot, int yhot, int width, int height, uint32_t enc)
-{
- int bytesPerPixel;
- size_t bytesPerRow, bytesMaskData;
- rfbXCursorColors rgb;
- uint32_t colors[2];
- char *buf;
- uint8_t *ptr;
- int x, y, b;
-
- bytesPerPixel = client->format.bitsPerPixel / 8;
- bytesPerRow = (width + 7) / 8;
- bytesMaskData = bytesPerRow * height;
-
- if (width * height == 0)
- return TRUE;
-
- /* Allocate memory for pixel data and temporary mask data. */
- if(client->rcSource)
- free(client->rcSource);
-
- client->rcSource = malloc(width * height * bytesPerPixel);
- if (client->rcSource == NULL)
- return FALSE;
-
- buf = malloc(bytesMaskData);
- if (buf == NULL) {
- free(client->rcSource);
- client->rcSource = NULL;
- return FALSE;
- }
-
- /* Read and decode cursor pixel data, depending on the encoding type. */
-
- if (enc == rfbEncodingXCursor) {
- /* Read and convert background and foreground colors. */
- if (!ReadFromRFBServer(client, (char *)&rgb, sz_rfbXCursorColors)) {
- free(client->rcSource);
- client->rcSource = NULL;
- free(buf);
- return FALSE;
- }
- colors[0] = RGB24_TO_PIXEL(32, rgb.backRed, rgb.backGreen, rgb.backBlue);
- colors[1] = RGB24_TO_PIXEL(32, rgb.foreRed, rgb.foreGreen, rgb.foreBlue);
-
- /* Read 1bpp pixel data into a temporary buffer. */
- if (!ReadFromRFBServer(client, buf, bytesMaskData)) {
- free(client->rcSource);
- client->rcSource = NULL;
- free(buf);
- return FALSE;
- }
-
- /* Convert 1bpp data to byte-wide color indices. */
- ptr = client->rcSource;
- for (y = 0; y < height; y++) {
- for (x = 0; x < width / 8; x++) {
- for (b = 7; b >= 0; b--) {
- *ptr = buf[y * bytesPerRow + x] >> b & 1;
- ptr += bytesPerPixel;
- }
- }
- for (b = 7; b > 7 - width % 8; b--) {
- *ptr = buf[y * bytesPerRow + x] >> b & 1;
- ptr += bytesPerPixel;
- }
- }
-
- /* Convert indices into the actual pixel values. */
- switch (bytesPerPixel) {
- case 1:
- for (x = 0; x < width * height; x++)
- client->rcSource[x] = (uint8_t)colors[client->rcSource[x]];
- break;
- case 2:
- for (x = 0; x < width * height; x++)
- ((uint16_t *)client->rcSource)[x] = (uint16_t)colors[client->rcSource[x * 2]];
- break;
- case 4:
- for (x = 0; x < width * height; x++)
- ((uint32_t *)client->rcSource)[x] = colors[client->rcSource[x * 4]];
- break;
- }
-
- } else { /* enc == rfbEncodingRichCursor */
-
- if (!ReadFromRFBServer(client, (char *)client->rcSource, width * height * bytesPerPixel)) {
- free(client->rcSource);
- client->rcSource = NULL;
- free(buf);
- return FALSE;
- }
-
- }
-
- /* Read and decode mask data. */
-
- if (!ReadFromRFBServer(client, buf, bytesMaskData)) {
- free(client->rcSource);
- client->rcSource = NULL;
- free(buf);
- return FALSE;
- }
-
- client->rcMask = malloc(width * height);
- if (client->rcMask == NULL) {
- free(client->rcSource);
- client->rcSource = NULL;
- free(buf);
- return FALSE;
- }
-
- ptr = client->rcMask;
- for (y = 0; y < height; y++) {
- for (x = 0; x < width / 8; x++) {
- for (b = 7; b >= 0; b--) {
- *ptr++ = buf[y * bytesPerRow + x] >> b & 1;
- }
- }
- for (b = 7; b > 7 - width % 8; b--) {
- *ptr++ = buf[y * bytesPerRow + x] >> b & 1;
- }
- }
-
- if (client->GotCursorShape != NULL) {
- client->GotCursorShape(client, xhot, yhot, width, height, bytesPerPixel);
- }
-
- free(buf);
-
- return TRUE;
-}
-
-
projects / presencevnc / blobdiff