mirror of
https://github.com/sheumann/VNCviewGS.git
synced 2024-11-25 06:31:36 +00:00
d281a30f98
Specifically, use a union rather than pointer-based type punning to convert the Long value returned by GetContentOrigin() to a Point. This makes for more readable code and should also generate somewhat better assembly code.
319 lines
11 KiB
C++
319 lines
11 KiB
C++
#if __ORCAC__
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#pragma lint -1
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#pragma noroot
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segment "VNCview GS";
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#endif
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#include <window.h>
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#include <quickdraw.h>
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#include <qdaux.h>
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#include <desk.h>
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#include <memory.h>
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#include <resources.h>
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#include <tcpip.h>
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#include <menu.h>
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#include <control.h>
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#include <misctool.h>
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#include <scrap.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <event.h>
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#include <limits.h>
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#include "vncsession.h"
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#include "vncview.h"
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#include "vncdisplay.h"
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#include "colortables.h"
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#include "menus.h"
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#include "clipboard.h"
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#include "desktopsize.h"
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#include "mouse.h"
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#include "keyboard.h"
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#include "copyrect.h"
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#include "raw.h"
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#include "hextile.h"
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unsigned char * cursor = NULL; /* Cursor from server */
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/* Send a DoPointerEvent reflecting the status of the mouse to the server */
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/* This routine also maintains the appropriate cursor when using local cursor */
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void DoPointerEvent (void) {
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static struct {
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unsigned char messageType;
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unsigned char buttonMask;
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unsigned int xPos;
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unsigned int yPos;
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} pointerEventStruct = { 5 /* message type */ };
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Point mouseCoords;
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Origin contentOrigin;
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RegionHndl contentRgnHndl;
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unsigned int oldButtonMask;
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GrafPortPtr winPtr;
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unsigned long key1 = 0x0000; /* Keys to release & re-press, if any */
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unsigned long key2 = 0x0000;
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if (viewOnlyMode)
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return;
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mouseCoords = myEvent.where;
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SetPort(vncWindow);
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/* Check if mouse is in content region of VNC window; don't send mouse
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* updates if it isn't.
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*/
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if (FindWindow(&winPtr, myEvent.where.h, myEvent.where.v) != wInContent ||
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winPtr != vncWindow) {
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if (cursor && GetCursorAdr() == cursor)
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InitCursor();
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return;
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}
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GlobalToLocal(&mouseCoords);
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contentOrigin.l = GetContentOrigin(vncWindow);
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mouseCoords.h += contentOrigin.pt.h;
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mouseCoords.v += contentOrigin.pt.v;
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mouseCoords.h = SwapBytes2(mouseCoords.h);
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mouseCoords.v = SwapBytes2(mouseCoords.v);
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/* Set up correct state of mouse buttons */
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oldButtonMask = pointerEventStruct.buttonMask;
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pointerEventStruct.buttonMask = 0x00;
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if ((myEvent.modifiers & btn0State) == 0x00) { /* Mouse button pressed */
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if (emulate3ButtonMouse) {
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if (myEvent.modifiers & optionKey) {
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pointerEventStruct.buttonMask = 0x02;
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key1 = 0xFFE9;
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}
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if (myEvent.modifiers & appleKey) {
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pointerEventStruct.buttonMask |= 0x04;
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key2 = 0xFFE7;
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}
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}
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/* If no modifiers, just send a normal left click. */
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if (pointerEventStruct.buttonMask == 0x00)
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pointerEventStruct.buttonMask = 0x01;
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}
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if ((myEvent.modifiers & btn1State) == 0x00) /* If 2nd (right) */
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pointerEventStruct.buttonMask |= 0x04; /* button is pressed */
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/* Don't waste bandwidth by sending update if mouse hasn't changed.
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* This may occasionally result in an initial mouse update not being
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* sent. If this occurs, the user can simply move the mouse slightly
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* in order to send it.
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*/
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if ( (pointerEventStruct.xPos == mouseCoords.h) &&
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(pointerEventStruct.yPos == mouseCoords.v) &&
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(pointerEventStruct.buttonMask == oldButtonMask) )
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return;
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pointerEventStruct.xPos = mouseCoords.h;
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pointerEventStruct.yPos = mouseCoords.v;
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if (key1)
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SendKeyEvent(FALSE, key1);
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if (key2)
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SendKeyEvent(FALSE, key2);
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TCPIPWriteTCP(hostIpid, (Pointer) &pointerEventStruct.messageType,
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sizeof(pointerEventStruct), TRUE, FALSE);
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/* Can't do useful error checking here */
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if (key1)
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SendKeyEvent(TRUE, key1);
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if (key2)
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SendKeyEvent(TRUE, key2);
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//printf("Sent mouse update: x = %u, y = %u\n", mouseCoords.h, mouseCoords.v);
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//printf(" xPos = %x, yPos = %x, buttons = %x\n", pointerEventStruct.xPos, pointerEventStruct.yPos, (int) pointerEventStruct.buttonMask);
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/* Note that we don't have to request a display update here. That has
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* been or will be done elsewhere when we're ready for it.
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*/
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if (cursor && GetCursorAdr() != cursor)
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SetCursor(cursor);
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}
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void DoCursor (void) {
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unsigned char *cursorPixels;
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unsigned char *bitmask;
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unsigned char *dataPtr;
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/* Elements of the cursor structure (which isn't a C struct) */
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unsigned int *cursorHeightPtr, *cursorWidthPtr;
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unsigned char *cursorImage, *cursorMask;
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unsigned int *hotSpotYPtr, *hotSpotXPtr;
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unsigned long bitmaskByte;
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unsigned long bitmaskLineBytes, lineWords;
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unsigned int line, n, j; /* Loop counters */
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unsigned char *maskLine, *imageLine;
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unsigned char *oldCursor = cursor; /* So we can free() it later */
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unsigned int outBytes640;
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unsigned long outBytes320;
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bitmaskLineBytes = ((unsigned long)rectWidth + 7) / 8;
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if (!DoReadTCP((unsigned long)rectWidth * rectHeight + bitmaskLineBytes * rectHeight))
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return; /* Try again later */
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cursorPixels = (unsigned char *)(*readBufferHndl);
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bitmask = (unsigned char *)(*readBufferHndl) + (unsigned long)rectWidth * rectHeight;
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if (hRez == 640)
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lineWords = ((unsigned long)rectWidth + 7) / 8 + 1;
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else /* hRez == 320 */
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lineWords = ((unsigned long)rectWidth + 3) / 4 + 1;
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/* Don't overflow loop indices, and don't use really large cursors.
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* (Is there a limit to the cursor sizes QuickDraw II can handle?) */
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if (lineWords > 16 || rectHeight > 128 || rectWidth == 0 || rectHeight == 0) {
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InitCursor();
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cursor = NULL;
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goto done;
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}
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cursor = malloc(8 + 4 * lineWords * rectHeight);
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/* Sub-optimal error handling */
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if (cursor == NULL) {
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InitCursor();
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goto done;
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}
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cursorHeightPtr = (unsigned int *)(void *)cursor;
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cursorWidthPtr = cursorHeightPtr + 1;
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cursorImage = cursor + 4;
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cursorMask = cursorImage + lineWords * rectHeight * 2;
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hotSpotYPtr = (unsigned int *)(cursorMask + lineWords * rectHeight * 2);
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hotSpotXPtr = hotSpotYPtr + 1;
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*cursorHeightPtr = rectHeight;
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*cursorWidthPtr = lineWords;
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*hotSpotYPtr = rectY;
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*hotSpotXPtr = rectX;
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/* Make cursorImage using translation tables */
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/* Make cursorMask from bitmask */
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dataPtr = cursorPixels;
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if (hRez == 320) {
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for (line = 0; line < rectHeight; line++) { /* for each line ... */
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maskLine = cursorMask + line * lineWords * 2;
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imageLine = cursorImage + line * lineWords * 2;
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for (j = 0; j < bitmaskLineBytes; j++) {
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bitmaskByte = *(bitmask + line*bitmaskLineBytes + j);
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outBytes320 =
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(((unsigned)bitmaskByte & 0x80) ) + (((unsigned)bitmaskByte & 0x80) >> 1) +
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(((unsigned)bitmaskByte & 0x80) >> 2) + (((unsigned)bitmaskByte & 0x80) >> 3) +
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(((unsigned)bitmaskByte & 0x40) >> 3) + (((unsigned)bitmaskByte & 0x40) >> 4) +
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(((unsigned)bitmaskByte & 0x40) >> 5) + (((unsigned)bitmaskByte & 0x40) >> 6) +
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(((unsigned)bitmaskByte & 0x20) << 10) + (((unsigned)bitmaskByte & 0x20) << 9) +
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(((unsigned)bitmaskByte & 0x20) << 8) + (((unsigned)bitmaskByte & 0x20) << 7) +
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(((unsigned)bitmaskByte & 0x10) << 7) + (((unsigned)bitmaskByte & 0x10) << 6) +
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(((unsigned)bitmaskByte & 0x10) << 5) + (((unsigned)bitmaskByte & 0x10) << 4) +
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((bitmaskByte & 0x08) << 20) + ((bitmaskByte & 0x08) << 19) +
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((bitmaskByte & 0x08) << 18) + ((bitmaskByte & 0x08) << 17) +
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((bitmaskByte & 0x04) << 17) + ((bitmaskByte & 0x04) << 16) +
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((bitmaskByte & 0x04) << 15) + ((bitmaskByte & 0x04) << 14) +
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((bitmaskByte & 0x02) << 30) + ((bitmaskByte & 0x02) << 29) +
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((bitmaskByte & 0x02) << 28) + ((bitmaskByte & 0x02) << 27) +
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((bitmaskByte & 0x01) << 27) + ((bitmaskByte & 0x01) << 26) +
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((bitmaskByte & 0x01) << 25) + ((bitmaskByte & 0x01) << 24);
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*((unsigned long *)maskLine + j) = outBytes320;
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}
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*((unsigned int *)maskLine + lineWords - 1) = 0;
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for (n = 0; n < rectWidth/2; n++) {
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*(imageLine + n) = coltab320[*(dataPtr++)] & 0xF0;
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*(imageLine + n) += coltab320[*(dataPtr++)] & 0x0F;
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*(imageLine + n) ^= 0xFF; /* Reverse color */
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*(imageLine + n) &= *(maskLine + n);
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}
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if (rectWidth & 0x01) {
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*(imageLine + n) = coltab320[*(dataPtr++)] & 0xF0;
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*(imageLine + n) ^= 0xFF; /* Reverse color */
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*(imageLine + n) &= *(maskLine + n);
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n++;
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}
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*(imageLine + n) = 0;
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*((unsigned int *)imageLine + lineWords - 1) = 0;
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}
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}
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else { /* hRez == 640 */
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for (line = 0; line < rectHeight; line++) { /* for each line ... */
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maskLine = cursorMask + line * lineWords * 2;
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imageLine = cursorImage + line * lineWords * 2;
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for (j = 0; j < bitmaskLineBytes; j++) {
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bitmaskByte = *(bitmask + line*bitmaskLineBytes + j);
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outBytes640 =
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(((unsigned)bitmaskByte & 0x80) ) + (((unsigned)bitmaskByte & 0xC0) >> 1) +
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(((unsigned)bitmaskByte & 0x60) >> 2) + (((unsigned)bitmaskByte & 0x30) >> 3) +
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(((unsigned)bitmaskByte & 0x10) >> 4) + (((unsigned)bitmaskByte & 0x08) << 12) +
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(((unsigned)bitmaskByte & 0x0C) << 11) + (((unsigned)bitmaskByte & 0x06) << 10) +
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(((unsigned)bitmaskByte & 0x03) << 9) + (((unsigned)bitmaskByte & 0x01) << 8);
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*((unsigned int *)maskLine + j) = outBytes640;
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}
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*((unsigned int *)maskLine + lineWords - 1) = 0;
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for (n = 0; n < rectWidth / 4; n++) {
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*(imageLine + n) = coltab640[*(dataPtr++)] & 0xC0;
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*(imageLine + n) += coltab640[*(dataPtr++)] & 0x30;
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*(imageLine + n) += coltab640[*(dataPtr++)] & 0x0C;
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*(imageLine + n) += coltab640[*(dataPtr++)] & 0x03;
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*(imageLine + n) ^= 0xFF; /* Reverse color */
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*(imageLine + n) &= *(maskLine + n);
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}
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if (rectWidth & 0x03) {
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*(imageLine + n) = 0;
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for (j = 0; j < (rectWidth & 0x03); j++) {
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*(imageLine + n) += coltab640[*(dataPtr++)] & (0xC0 >> j*2);
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}
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*(imageLine + n) ^= 0xFF; /* Reverse color */
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*(imageLine + n) &= *(maskLine + n);
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n++;
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}
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*(unsigned int *)(imageLine + n) = 0;
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*((unsigned int *)imageLine + lineWords - 1) = 0;
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}
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}
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if (GetCursorAdr() == oldCursor)
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SetCursor(cursor);
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#if 0
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/***************/
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{
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unsigned char * k;
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FILE *foo = fopen("out.txt", "a");
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fprintf(foo, "Width = %u, Height = %u, Hotspot X = %u, Hotspot Y = %u:\n",
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rectWidth, rectHeight, rectX, rectY);
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fprintf(foo, "\n");
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for (k = cursor; k < cursorImage; k++)
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fprintf(foo, "%02X ", *k);
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fprintf(foo, "\n");
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for (j = 0; j < lineWords * rectHeight * 4; j++) {
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fprintf(foo, "%02X", *(cursorImage + j));
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if ((j+1) % (lineWords * 2) == 0)
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fprintf(foo, "\n");
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}
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for (k = cursorImage + j; k < cursorImage + j + 4; k = k + 1)
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fprintf(foo, "%02X ", *k);
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fprintf(foo, "\n");
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fclose(foo);
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}
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/***************/
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#endif
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done:
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free(oldCursor);
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NextRect(); /* Prepare for next rect */
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}
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