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-rw-r--r--krfb/libvncserver/cursor.c678
1 files changed, 0 insertions, 678 deletions
diff --git a/krfb/libvncserver/cursor.c b/krfb/libvncserver/cursor.c
deleted file mode 100644
index 3609b18f..00000000
--- a/krfb/libvncserver/cursor.c
+++ /dev/null
@@ -1,678 +0,0 @@
-/*
- * cursor.c - support for cursor shape updates.
- */
-
-/*
- * Copyright (C) 2000, 2001 Const Kaplinsky. All Rights Reserved.
- * Copyright (C) 1999 AT&T Laboratories Cambridge. 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- * USA.
- */
-
-#include "rfb.h"
-
-/*
- * Send cursor shape either in X-style format or in client pixel format.
- */
-
-Bool
-rfbSendCursorShape(cl)
- rfbClientPtr cl;
-{
- rfbCursorPtr pCursor;
- rfbFramebufferUpdateRectHeader rect;
- rfbXCursorColors colors;
- int saved_ublen;
- int bitmapRowBytes, maskBytes, dataBytes;
- int i, j;
- CARD8 *bitmapData;
- CARD8 bitmapByte;
-
- pCursor = cl->screen->getCursorPtr(cl);
- /*if(!pCursor) return TRUE;*/
-
- if (cl->useRichCursorEncoding) {
- if(pCursor && !pCursor->richSource)
- MakeRichCursorFromXCursor(cl->screen,pCursor);
- rect.encoding = Swap32IfLE(rfbEncodingRichCursor);
- } else {
- if(pCursor && !pCursor->source)
- MakeXCursorFromRichCursor(cl->screen,pCursor);
- rect.encoding = Swap32IfLE(rfbEncodingXCursor);
- }
-
- /* If there is no cursor, send update with empty cursor data. */
-
- if ( pCursor && pCursor->width == 1 &&
- pCursor->height == 1 &&
- pCursor->mask[0] == 0 ) {
- pCursor = NULL;
- }
-
- if (pCursor == NULL) {
- if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE ) {
- if (!rfbSendUpdateBuf(cl))
- return FALSE;
- }
- rect.r.x = rect.r.y = 0;
- rect.r.w = rect.r.h = 0;
- memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,
- sz_rfbFramebufferUpdateRectHeader);
- cl->ublen += sz_rfbFramebufferUpdateRectHeader;
-
- cl->rfbCursorBytesSent += sz_rfbFramebufferUpdateRectHeader;
- cl->rfbCursorUpdatesSent++;
-
- if (!rfbSendUpdateBuf(cl))
- return FALSE;
-
- return TRUE;
- }
-
- /* Calculate data sizes. */
-
- bitmapRowBytes = (pCursor->width + 7) / 8;
- maskBytes = bitmapRowBytes * pCursor->height;
- dataBytes = (cl->useRichCursorEncoding) ?
- (pCursor->width * pCursor->height *
- (cl->format.bitsPerPixel / 8)) : maskBytes;
-
- /* Send buffer contents if needed. */
-
- if ( cl->ublen + sz_rfbFramebufferUpdateRectHeader +
- sz_rfbXCursorColors + maskBytes + dataBytes > UPDATE_BUF_SIZE ) {
- if (!rfbSendUpdateBuf(cl))
- return FALSE;
- }
-
- if ( cl->ublen + sz_rfbFramebufferUpdateRectHeader +
- sz_rfbXCursorColors + maskBytes + dataBytes > UPDATE_BUF_SIZE ) {
- return FALSE; /* FIXME. */
- }
-
- saved_ublen = cl->ublen;
-
- /* Prepare rectangle header. */
-
- rect.r.x = Swap16IfLE(pCursor->xhot);
- rect.r.y = Swap16IfLE(pCursor->yhot);
- rect.r.w = Swap16IfLE(pCursor->width);
- rect.r.h = Swap16IfLE(pCursor->height);
-
- memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,sz_rfbFramebufferUpdateRectHeader);
- cl->ublen += sz_rfbFramebufferUpdateRectHeader;
-
- /* Prepare actual cursor data (depends on encoding used). */
-
- if (!cl->useRichCursorEncoding) {
- /* XCursor encoding. */
- colors.foreRed = (char)(pCursor->foreRed >> 8);
- colors.foreGreen = (char)(pCursor->foreGreen >> 8);
- colors.foreBlue = (char)(pCursor->foreBlue >> 8);
- colors.backRed = (char)(pCursor->backRed >> 8);
- colors.backGreen = (char)(pCursor->backGreen >> 8);
- colors.backBlue = (char)(pCursor->backBlue >> 8);
-
- memcpy(&cl->updateBuf[cl->ublen], (char *)&colors, sz_rfbXCursorColors);
- cl->ublen += sz_rfbXCursorColors;
-
- bitmapData = (CARD8 *)pCursor->source;
-
- for (i = 0; i < pCursor->height; i++) {
- for (j = 0; j < bitmapRowBytes; j++) {
- bitmapByte = bitmapData[i * bitmapRowBytes + j];
- cl->updateBuf[cl->ublen++] = (char)bitmapByte;
- }
- }
- } else {
- /* RichCursor encoding. */
- int bpp1=cl->screen->rfbServerFormat.bitsPerPixel/8,
- bpp2=cl->format.bitsPerPixel/8;
- (*cl->translateFn)(cl->translateLookupTable,
- &(cl->screen->rfbServerFormat),
- &cl->format, pCursor->richSource,
- &cl->updateBuf[cl->ublen],
- pCursor->width*bpp1, pCursor->width, pCursor->height);
-
- cl->ublen += pCursor->width*bpp2*pCursor->height;
- }
-
- /* Prepare transparency mask. */
-
- bitmapData = (CARD8 *)pCursor->mask;
-
- for (i = 0; i < pCursor->height; i++) {
- for (j = 0; j < bitmapRowBytes; j++) {
- bitmapByte = bitmapData[i * bitmapRowBytes + j];
- cl->updateBuf[cl->ublen++] = (char)bitmapByte;
- }
- }
-
- /* Send everything we have prepared in the cl->updateBuf[]. */
-
- cl->rfbCursorBytesSent += (cl->ublen - saved_ublen);
- cl->rfbCursorUpdatesSent++;
-
- if (!rfbSendUpdateBuf(cl))
- return FALSE;
-
- return TRUE;
-}
-
-/*
- * Send soft cursor state and possibly image
- */
-
-Bool
-rfbSendSoftCursor(rfbClientPtr cl, Bool cursorWasChanged)
-{
- rfbCursorPtr pCursor;
- rfbSoftCursorSetImage setImage;
- rfbSoftCursorMove moveMsg;
- rfbFramebufferUpdateRectHeader rect;
- int saved_ublen, i, scOindex, scNindex, nlen, imgLen;
-
- pCursor = cl->screen->getCursorPtr(cl);
- if (cursorWasChanged && cl->softSource) {
- free(cl->softSource);
- cl->softSource = 0;
- }
- if (!cl->softSource)
- MakeSoftCursor(cl, pCursor);
-
- imgLen = cl->softSourceLen;
-
- /* If there is no cursor, send update with empty cursor data. */
-
- if ( pCursor && pCursor->width <= 1 &&
- pCursor->height <= 1 &&
- pCursor->mask[0] == 0 ) {
- pCursor = NULL;
- }
-
- setImage.imageLength = Swap16IfLE(imgLen);
-
- scOindex = -1;
- scNindex = -1;
- for (i = 0; i < rfbSoftCursorMaxImages; i++) {
- rfbSoftCursorSetImage *scsi = cl->softCursorImages[i];
- if (!scsi) {
- scNindex = i;
- break;
- }
-
- setImage.imageIndex = scsi->imageIndex;
- if (!memcmp((char*)scsi, (char*)&setImage, sizeof(setImage))) {
- if (imgLen && !memcmp(((char*)scsi)+sizeof(rfbSoftCursorSetImage),
- cl->softSource,
- imgLen)) {
- scOindex = i;
- break;
- }
- }
- }
-
- nlen = 0;
- if (scOindex < 0) {
- if (scNindex < 0) {
- scNindex = cl->nextUnusedSoftCursorImage;
- cl->nextUnusedSoftCursorImage = (cl->nextUnusedSoftCursorImage+1)
- % rfbSoftCursorMaxImages;
- free(cl->softCursorImages[scNindex]);
- }
-
- scOindex = scNindex;
- setImage.imageIndex = scNindex + rfbSoftCursorSetIconOffset;
- nlen = sizeof(setImage) + imgLen;
- cl->softCursorImages[scNindex] = calloc(1, nlen);
- memcpy((char*)cl->softCursorImages[scNindex], (char*)&setImage,
- sizeof(setImage));
- if (imgLen)
- memcpy(((char*)cl->softCursorImages[scNindex])+sizeof(setImage),
- (char*)cl->softSource, imgLen);
- }
-
- /* Send buffer contents if needed. */
-
- if ( cl->ublen + sizeof(rfbSoftCursorMove) +
- ((scNindex >= 0 && cursorWasChanged) ?
- (sizeof(rfbSoftCursorSetImage) + imgLen) : 0) > UPDATE_BUF_SIZE) {
-
- if (!rfbSendUpdateBuf(cl))
- return FALSE;
- }
-
- saved_ublen = cl->ublen;
-
- if (scNindex >= 0 && cursorWasChanged) {
- rect.encoding = Swap32IfLE(rfbEncodingSoftCursor);
- if (pCursor) {
- rect.r.x = Swap16IfLE(pCursor->xhot);
- rect.r.y = Swap16IfLE(pCursor->yhot);
- rect.r.w = Swap16IfLE(pCursor->width);
- rect.r.h = Swap16IfLE(pCursor->height);
- }
- else {
- rect.r.x = 0;
- rect.r.y = 0;
- rect.r.w = 0;
- rect.r.h = 0;
- }
-
- memcpy(&cl->updateBuf[cl->ublen],
- (char *)&rect,sz_rfbFramebufferUpdateRectHeader);
- cl->ublen += sz_rfbFramebufferUpdateRectHeader;
- memcpy(&cl->updateBuf[cl->ublen], (char*)cl->softCursorImages[scNindex], nlen);
- cl->ublen += nlen;
- cl->rfbCursorUpdatesSent++;
- }
-
- rect.encoding = Swap32IfLE(rfbEncodingSoftCursor);
- rect.r.x = 0;
- rect.r.y = 0;
- rect.r.w = Swap16IfLE(cl->screen->cursorX);
- rect.r.h = Swap16IfLE(cl->screen->cursorY);
- moveMsg.imageIndex = scOindex;
- moveMsg.buttonMask = 0; /* todo */
- memcpy(&cl->updateBuf[cl->ublen],
- (char *)&rect,sz_rfbFramebufferUpdateRectHeader);
- cl->ublen += sz_rfbFramebufferUpdateRectHeader;
- memcpy(&cl->updateBuf[cl->ublen], (char*)&moveMsg, sizeof(moveMsg));
- cl->ublen += sizeof(moveMsg);
-
- /* Send everything we have prepared in the cl->updateBuf[]. */
-
- cl->rfbCursorBytesSent += (cl->ublen - saved_ublen);
- cl->rfbCursorUpdatesSent++;
-
- return rfbSendUpdateBuf(cl);
-}
-
-/* conversion routine for predefined cursors in LSB order */
-unsigned char rfbReverseByte[0x100] = {
- /* copied from Xvnc/lib/font/util/utilbitmap.c */
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
-};
-
-void rfbConvertLSBCursorBitmapOrMask(int width,int height,unsigned char* bitmap)
-{
- int i,t=(width+7)/8*height;
- for(i=0;i<t;i++)
- bitmap[i]=rfbReverseByte[(int)bitmap[i]];
-}
-
-/* Cursor creation. You "paint" a cursor and let these routines do the work */
-
-rfbCursorPtr rfbMakeXCursor(int width,int height,char* cursorString,char* maskString)
-{
- int i,j,w=(width+7)/8;
- rfbCursorPtr cursor = (rfbCursorPtr)calloc(1,sizeof(rfbCursor));
- char* cp;
- unsigned char bit;
-
- cursor->width=width;
- cursor->height=height;
- /*cursor->backRed=cursor->backGreen=cursor->backBlue=0xffff;*/
- cursor->foreRed=cursor->foreGreen=cursor->foreBlue=0xffff;
-
- cursor->source = (unsigned char*)calloc(w,height);
- for(j=0,cp=cursorString;j<height;j++)
- for(i=0,bit=0x80;i<width;i++,bit=(bit&1)?0x80:bit>>1,cp++)
- if(*cp!=' ') ((char*)(cursor->source))[j*w+i/8]|=bit;
-
- if(maskString) {
- cursor->mask = (unsigned char*)calloc(w,height);
- for(j=0,cp=maskString;j<height;j++)
- for(i=0,bit=0x80;i<width;i++,bit=(bit&1)?0x80:bit>>1,cp++)
- if(*cp!=' ') ((char*)(cursor->mask))[j*w+i/8]|=bit;
- } else
- cursor->mask = (unsigned char*)rfbMakeMaskForXCursor(width,height,(char*)(cursor->source));
-
- return(cursor);
-}
-
-char* rfbMakeMaskForXCursor(int width,int height,char* source)
-{
- int i,j,w=(width+7)/8;
- char* mask=(char*)calloc(w,height);
- unsigned char c;
-
- for(j=0;j<height;j++)
- for(i=w-1;i>=0;i--) {
- c=source[j*w+i];
- if(j>0) c|=source[(j-1)*w+i];
- if(j<height-1) c|=source[(j+1)*w+i];
-
- if(i>0 && (c&0x80))
- mask[j*w+i-1]|=0x01;
- if(i<w-1 && (c&0x01))
- mask[j*w+i+1]|=0x80;
-
- mask[j*w+i]|=(c<<1)|c|(c>>1);
- }
-
- return(mask);
-}
-
-void rfbFreeCursor(rfbCursorPtr cursor)
-{
- if(cursor) {
- if(cursor->richSource)
- free(cursor->richSource);
- free((char*)(cursor->source));
- free((char*)(cursor->mask));
- free(cursor);
- }
-
-}
-
-/* background and foregroud colour have to be set beforehand */
-void MakeXCursorFromRichCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor)
-{
- rfbPixelFormat* format=&rfbScreen->rfbServerFormat;
- int i,j,w=(cursor->width+7)/8,bpp=format->bitsPerPixel/8,
- width=cursor->width*bpp;
- CARD32 background;
- char *back=(char*)&background;
- unsigned char bit;
-
- cursor->source=(unsigned char*)calloc(w,cursor->height);
-
- if(format->bigEndian)
- back+=4-bpp;
-
- background=cursor->backRed<<format->redShift|
- cursor->backGreen<<format->greenShift|cursor->backBlue<<format->blueShift;
-
- for(j=0;j<cursor->height;j++)
- for(i=0,bit=0x80;i<cursor->width;i++,bit=(bit&1)?0x80:bit>>1)
- if(memcmp(cursor->richSource+j*width+i*bpp,back,bpp))
- ((char*)(cursor->source))[j*w+i/8]|=bit;
-}
-
-void MakeRichCursorFromXCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor)
-{
- rfbPixelFormat* format=&rfbScreen->rfbServerFormat;
- int i,j,w=(cursor->width+7)/8,bpp=format->bitsPerPixel/8;
- CARD32 background,foreground;
- char *back=(char*)&background,*fore=(char*)&foreground;
- unsigned char *cp;
- unsigned char bit;
-
- cp=cursor->richSource=(unsigned char*)calloc(cursor->width*bpp,cursor->height);
-
- if(format->bigEndian) {
- back+=4-bpp;
- fore+=4-bpp;
- }
-
- background=cursor->backRed<<format->redShift|
- cursor->backGreen<<format->greenShift|cursor->backBlue<<format->blueShift;
- foreground=cursor->foreRed<<format->redShift|
- cursor->foreGreen<<format->greenShift|cursor->foreBlue<<format->blueShift;
-
- for(j=0;j<cursor->height;j++)
- for(i=0,bit=0x80;i<cursor->height;i++,bit=(bit&1)?0x80:bit>>1,cp+=bpp)
- if(cursor->source[j*w+i/8]&bit) memcpy(cp,fore,bpp);
- else memcpy(cp,back,bpp);
-}
-
-void MakeSoftCursor(rfbClientPtr cl, rfbCursorPtr cursor)
-{
- int w = (cursor->width+7)/8;
- int bpp = cl->format.bitsPerPixel/8;
- int sbpp= cl->screen->rfbServerFormat.bitsPerPixel/8;
- unsigned char *cp, *sp, *translatedCursor;
- int state; /* 0 = transparent, 1 otherwise */
- CARD8 *counter;
- unsigned char bit;
- int i,j;
-
- if ((!cursor) || (cl->softSource)) {
- cl->softSourceLen = 0;
- return;
- }
-
- if (!cursor->richSource)
- MakeRichCursorFromXCursor(cl->screen, cursor);
-
- sp = malloc(cursor->width*bpp*cursor->height);
-
- (*cl->translateFn)(cl->translateLookupTable,
- &(cl->screen->rfbServerFormat),
- &cl->format, cursor->richSource,
- sp, cursor->width*sbpp,
- cursor->width, cursor->height);
-
- translatedCursor = sp;
- cp=cl->softSource=(unsigned char*)calloc(cursor->width*(bpp+2),cursor->height);
-
- state = 0;
- counter = cp++;
- *counter = 0;
-
- for(j=0;j<cursor->height;j++)
- for(i=0,bit=0x80;i<cursor->width;i++,bit=(bit&1)?0x80:bit>>1)
- if(cursor->mask[j*w+i/8]&bit) {
- if (state) {
- memcpy(cp,sp,bpp);
- cp += bpp;
- sp += bpp;
- (*counter)++;
- if (*counter == 255) {
- state = 0;
- counter = cp++;
- *counter = 0;
- }
- }
- else {
- state = 1;
- counter = cp++;
- *counter = 1;
- memcpy(cp,sp,bpp);
- cp += bpp;
- sp += bpp;
- }
- }
- else {
- if (!state) {
- (*counter)++;
- if (*counter == 255) {
- state = 1;
- counter = cp++;
- *counter = 0;
- }
- }
- else {
- state = 0;
- counter = cp++;
- *counter = 1;
- }
- sp += bpp;
- }
-
- free(translatedCursor);
- cl->softSourceLen = cp - cl->softSource;
-}
-
-
-/* functions to draw/hide cursor directly in the frame buffer */
-
-void rfbUndrawCursor(rfbScreenInfoPtr s)
-{
- rfbCursorPtr c=s->cursor;
- int j,x1,x2,y1,y2,bpp=s->rfbServerFormat.bitsPerPixel/8,
- rowstride=s->paddedWidthInBytes;
- LOCK(s->cursorMutex);
- if(!s->cursorIsDrawn) {
- UNLOCK(s->cursorMutex);
- return;
- }
-
- /* restore what is under the cursor */
- x1=s->cursorX-c->xhot;
- x2=x1+c->width;
- if(x1<0) x1=0;
- if(x2>=s->width) x2=s->width-1;
- x2-=x1; if(x2<=0) {
- UNLOCK(s->cursorMutex);
- return;
- }
- y1=s->cursorY-c->yhot;
- y2=y1+c->height;
- if(y1<0) y1=0;
- if(y2>=s->height) y2=s->height-1;
- y2-=y1; if(y2<=0) {
- UNLOCK(s->cursorMutex);
- return;
- }
-
- /* get saved data */
- for(j=0;j<y2;j++)
- memcpy(s->frameBuffer+(y1+j)*rowstride+x1*bpp,
- s->underCursorBuffer+j*x2*bpp,
- x2*bpp);
-
- rfbMarkRectAsModified(s,x1,y1,x1+x2,y1+y2);
- s->cursorIsDrawn = FALSE;
- UNLOCK(s->cursorMutex);
-}
-
-void rfbDrawCursor(rfbScreenInfoPtr s)
-{
- rfbCursorPtr c=s->cursor;
- int i,j,x1,x2,y1,y2,i1,j1,bpp=s->rfbServerFormat.bitsPerPixel/8,
- rowstride=s->paddedWidthInBytes,
- bufSize,w;
- if(!c) return;
- LOCK(s->cursorMutex);
- if(s->cursorIsDrawn) {
- /* is already drawn */
- UNLOCK(s->cursorMutex);
- return;
- }
- bufSize=c->width*c->height*bpp;
- w=(c->width+7)/8;
- if(s->underCursorBufferLen<bufSize) {
- if(s->underCursorBuffer!=NULL)
- free(s->underCursorBuffer);
- s->underCursorBuffer=malloc(bufSize);
- s->underCursorBufferLen=bufSize;
- }
- /* save what is under the cursor */
- i1=j1=0; /* offset in cursor */
- x1=s->cursorX-c->xhot;
- x2=x1+c->width;
- if(x1<0) { i1=-x1; x1=0; }
- if(x2>=s->width) x2=s->width-1;
- x2-=x1; if(x2<=0) {
- UNLOCK(s->cursorMutex);
- return; /* nothing to do */
- }
- y1=s->cursorY-c->yhot;
- y2=y1+c->height;
- if(y1<0) { j1=-y1; y1=0; }
- if(y2>=s->height) y2=s->height-1;
- y2-=y1; if(y2<=0) {
- UNLOCK(s->cursorMutex);
- return; /* nothing to do */
- }
-
- /* save data */
- for(j=0;j<y2;j++)
- memcpy(s->underCursorBuffer+j*x2*bpp,
- s->frameBuffer+(y1+j)*rowstride+x1*bpp,
- x2*bpp);
-
- if(!c->richSource)
- MakeRichCursorFromXCursor(s,c);
-
- /* now the cursor has to be drawn */
- for(j=0;j<y2;j++)
- for(i=0;i<x2;i++)
- if((c->mask[(j+j1)*w+(i+i1)/8]<<((i+i1)&7))&0x80)
- memcpy(s->frameBuffer+(j+y1)*rowstride+(i+x1)*bpp,
- c->richSource+(j+j1)*c->width*bpp+(i+i1)*bpp,bpp);
-
-
- rfbMarkRectAsModified(s,x1,y1,x1+x2,y1+y2);
- s->cursorIsDrawn = TRUE;
- UNLOCK(s->cursorMutex);
-}
-
-/* for debugging */
-
-void rfbPrintXCursor(rfbCursorPtr cursor)
-{
- int i,i1,j,w=(cursor->width+7)/8;
- unsigned char bit;
- for(j=0;j<cursor->height;j++) {
- for(i=0,i1=0,bit=0x80;i1<cursor->width;i1++,i+=(bit&1)?1:0,bit=(bit&1)?0x80:bit>>1)
- if(cursor->source[j*w+i]&bit) putchar('#'); else putchar(' ');
- putchar(':');
- for(i=0,i1=0,bit=0x80;i1<cursor->width;i1++,i+=(bit&1)?1:0,bit=(bit&1)?0x80:bit>>1)
- if(cursor->mask[j*w+i]&bit) putchar('#'); else putchar(' ');
- putchar('\n');
- }
-}
-
-extern void rfbSetCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr c,Bool freeOld)
-{
- LOCK(rfbScreen->cursorMutex);
- while(rfbScreen->cursorIsDrawn) {
- UNLOCK(rfbScreen->cursorMutex);
- rfbUndrawCursor(rfbScreen);
- LOCK(rfbScreen->cursorMutex);
- }
-
- if(freeOld && rfbScreen->cursor)
- rfbFreeCursor(rfbScreen->cursor);
-
- rfbScreen->cursor = c;
-
- UNLOCK(rfbScreen->cursorMutex);
-}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-20 04:55:08 +0000