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annotate src/thread/pth/SDL_sysmutex.c @ 1207:c9ec00d3e8bc

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To: sdl@libsdl.org From: Christian Walther <cwalther@gmx.ch> Date: Wed, 21 Dec 2005 13:39:39 +0100 Subject: [SDL] Another mouse bug patch for Mac OS X Oh my, yet another change in the quartz mouse handling code! :) The attached patch fixes the following bug: Calling SDL_WarpMouse() while the cursor is invisible and grabbed should only update SDL's internal mouse location, not try to warp the system cursor (which is not at that location, but fixed in the middle of the window). Otherwise, the next mouse motion event is wrong. Please apply. Thanks Christian
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 21 Dec 2005 18:02:36 +0000
parents 1d74ddc90cb2
children 3692456e7b0f
rev   line source
329
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1 /*
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2 * GNU pth mutexes
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3 *
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4 * Patrice Mandin
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5 */
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6
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <pth.h>
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10
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11 #include "SDL_error.h"
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12 #include "SDL_mutex.h"
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13 #include "SDL_sysmutex_c.h"
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14
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15 /* Create a mutex */
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16 SDL_mutex *SDL_CreateMutex(void)
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17 {
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18 SDL_mutex *mutex;
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19
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20 /* Allocate mutex memory */
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21 mutex = (SDL_mutex *)malloc(sizeof(*mutex));
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22 if ( mutex ) {
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23 /* Create the mutex, with initial value signaled */
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24 if (!pth_mutex_init(&(mutex->mutexpth_p))) {
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25 SDL_SetError("Couldn't create mutex");
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26 free(mutex);
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27 mutex = NULL;
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28 }
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29 } else {
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30 SDL_OutOfMemory();
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31 }
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32 return(mutex);
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33 }
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34
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35 /* Free the mutex */
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36 void SDL_DestroyMutex(SDL_mutex *mutex)
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37 {
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38 if ( mutex ) {
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39 free(mutex);
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40 }
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41 }
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42
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43 /* Lock the mutex */
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44 int SDL_mutexP(SDL_mutex *mutex)
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45 {
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46 if ( mutex == NULL ) {
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47 SDL_SetError("Passed a NULL mutex");
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48 return -1;
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49 }
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50
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51 pth_mutex_acquire(&(mutex->mutexpth_p), FALSE, NULL);
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52
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53 return(0);
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54 }
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55
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56 /* Unlock the mutex */
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57 int SDL_mutexV(SDL_mutex *mutex)
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58 {
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59 if ( mutex == NULL ) {
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60 SDL_SetError("Passed a NULL mutex");
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61 return -1;
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62 }
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63
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64 pth_mutex_release(&(mutex->mutexpth_p));
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65
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66 return(0);
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67 }