Bug Summary

File:c:\siege\siege/src/siege/input/mouse.c
Location:line 71, column 5
Description:Function call argument is an uninitialized value

Annotated Source Code

1/*
2 Copyright (c) 2007 SIEGE Development Team
3 All rights reserved.
4
5 This file is part of libSIEGE.
6
7 This software is copyrighted work licensed under the terms of the
8 2-clause BSD license. Please consult the file "license.txt" for
9 details.
10
11 If you did not recieve the file with this program, please email
12 Tim Chas <darkuranium@gmail.com>.
13*/
14
15#define SG_BUILD_LIBRARY
16#include <siege/input/mouse.h>
17#include <siege/core/window.h>
18#include <siege/core/entity.h>
19
20#include <stdlib.h>
21#include <string.h>
22
23#include <SDL/SDL.h>
24
25void SG_CALL__cdecl _sg_cbMouseButton(SGuint button, SGbool down)
26{
27 if(button - 1 >= _sg_mouseButtonNum)
1
Taking false branch
→
28 return;
29 //_sg_mouseButtonPrev[button - 1] = !down; //_sg_mouseButtonCurr[button - 1];
30 _sg_mouseButtonCurr[button - 1] = down;
31
32 SGbool pressed = sgMouseGetButtonPress(button);
33
34 size_t numevents = 2;
35 SGenum events[2];
36
37 if(pressed)
2
←
Taking false branch
→
38 events[0] = SG_EVF_MOUSEBUTP(0x00080000U | 0x0002);
39 else if(!down)
3
←
Assuming 'down' is not equal to 0
→
4
←
Taking false branch
→
40 events[0] = SG_EVF_MOUSEBUTR(0x00080000U | 0x0004);
41 else
42 {
43 events[1] = 0;
44 numevents--;
45 }
46 switch(button)
5
←
Control jumps to 'case 3:' at line 60
→
47 {
48 case SG_MOUSE_BUTTON_LEFT1:
49 if(pressed)
50 events[numevents-1] = SG_EVF_MOUSEBUTLP(0x00080000U | 0x0010);
51 else if(!down)
52 events[numevents-1] = SG_EVF_MOUSEBUTLR(0x00080000U | 0x0020);
53 break;
54 case SG_MOUSE_BUTTON_RIGHT2:
55 if(pressed)
56 events[numevents-1] = SG_EVF_MOUSEBUTRP(0x00080000U | 0x0080);
57 else if(!down)
58 events[numevents-1] = SG_EVF_MOUSEBUTRR(0x00080000U | 0x0100);
59 break;
60 case SG_MOUSE_BUTTON_MIDDLE3:
61 if(pressed)
6
←
Taking false branch
→
62 events[numevents-1] = SG_EVF_MOUSEBUTMP(0x00080000U | 0x0400);
63 else if(!down)
7
←
Taking false branch
→
64 events[numevents-1] = SG_EVF_MOUSEBUTMR(0x00080000U | 0x0800);
65 break;
8
←
 Execution continues on line 71
→
66 default:
67 events[--numevents] = 0;
68 break;
69 }
70
71 sgEntityEventSignal(numevents, events[0], button, events[1]);
9
←
Function call argument is an uninitialized value
72}
73void SG_CALL__cdecl _sg_cbMouseMove(SGint x, SGint y)
74{
75 _sg_mouseXPrev = _sg_mouseX;
76 _sg_mouseYPrev = _sg_mouseY;
77 _sg_mouseX = x;
78 _sg_mouseY = y;
79
80 sgEntityEventSignal(1, (SGenum)SG_EVF_MOUSEMOVE(0x00080000U | 0x1000), x, y);
81}
82void SG_CALL__cdecl _sg_cbMouseWheel(SGint w)
83{
84 _sg_mouseWheelPrev = _sg_mouseWheel;
85 _sg_mouseWheel = w;
86
87 sgEntityEventSignal(1, (SGenum)SG_EVF_MOUSEWHEEL(0x00080000U | 0x2000), w);
88}
89
90void SG_CALL__cdecl _sgMouseUpdate(void)
91{
92 size_t numevents;
93 SGenum events[2];
94 SGuint i;
95 for(i = 0; i < _sg_mouseButtonNum; i++)
96 {
97 if(_sg_mouseButtonCurr[i])
98 {
99 numevents = 2;
100 events[0] = SG_EVF_MOUSEBUTH(0x00080000U | 0x0001);
101 switch(i + 1)
102 {
103 case SG_MOUSE_BUTTON_LEFT1:
104 events[1] = SG_EVF_MOUSEBUTLH(0x00080000U | 0x0008);
105 break;
106 case SG_MOUSE_BUTTON_RIGHT2:
107 events[1] = SG_EVF_MOUSEBUTRH(0x00080000U | 0x0040);
108 break;
109 case SG_MOUSE_BUTTON_MIDDLE3:
110 events[1] = SG_EVF_MOUSEBUTMH(0x00080000U | 0x0200);
111 break;
112 default:
113 events[1] = 0;
114 numevents--;
115 break;
116 }
117 sgEntityEventSignal(numevents, events[0], i + 1, events[1]);
118 }
119 }
120 memcpy(_sg_mouseButtonPrev, _sg_mouseButtonBuff, _sg_mouseButtonNum * sizeof(SGbool));
121 memcpy(_sg_mouseButtonBuff, _sg_mouseButtonCurr, _sg_mouseButtonNum * sizeof(SGbool));
122}
123
124SGbool SG_CALL__cdecl _sgMouseInit(void)
125{
126 _sg_mouseButtonNum = 7;
127 _sg_mouseButtonPrev = malloc(_sg_mouseButtonNum * sizeof(SGbool));
128 memset(_sg_mouseButtonPrev, 0, _sg_mouseButtonNum * sizeof(SGbool));
129 _sg_mouseButtonBuff = malloc(_sg_mouseButtonNum * sizeof(SGbool));
130 memset(_sg_mouseButtonBuff, 0, _sg_mouseButtonNum * sizeof(SGbool));
131 _sg_mouseButtonCurr = malloc(_sg_mouseButtonNum * sizeof(SGbool));
132 memset(_sg_mouseButtonCurr, 0, _sg_mouseButtonNum * sizeof(SGbool));
133
134 _sg_mouseXPrev = 0;
135 _sg_mouseYPrev = 0;
136 _sg_mouseX = 0;
137 _sg_mouseY = 0;
138 _sg_mouseWheelPrev = 0;
139 _sg_mouseWheel = 0;
140
141 return SG_TRUE1;
142}
143SGbool SG_CALL__cdecl _sgMouseDeinit(void)
144{
145 free(_sg_mouseButtonPrev);
146 free(_sg_mouseButtonBuff);
147 free(_sg_mouseButtonCurr);
148 _sg_mouseButtonNum = 0;
149
150 return SG_TRUE1;
151}
152
153void SG_CALL__cdecl sgMouseMove(SGint x, SGint y)
154{
155 SDL_WarpMouse(x, y);
156 _sg_mouseXPrev = _sg_mouseX;
157 _sg_mouseYPrev = _sg_mouseY;
158 _sg_mouseX = x;
159 _sg_mouseY = y;
160}
161
162void SG_CALL__cdecl sgMouseSetVisible(SGbool vis)
163{
164 SDL_ShowCursor(vis);
165}
166void SG_CALL__cdecl sgMouseShow(void)
167{
168 sgMouseSetVisible(SG_TRUE1);
169}
170void SG_CALL__cdecl sgMouseHide(void)
171{
172 sgMouseSetVisible(SG_FALSE0);
173}
174
175void SG_CALL__cdecl sgMouseGetPosPrev(SGint* x, SGint* y)
176{
177 if(x != NULL((void*)0))
178 *x = _sg_mouseXPrev;
179 if(y != NULL((void*)0))
180 *y = _sg_mouseYPrev;
181}
182SGint SG_CALL__cdecl sgMouseGetPosPrevX(void)
183{
184 return _sg_mouseXPrev;
185}
186SGint SG_CALL__cdecl sgMouseGetPosPrevY(void)
187{
188 return _sg_mouseYPrev;
189}
190
191void SG_CALL__cdecl sgMouseGetPos(SGint* x, SGint* y)
192{
193 if(x != NULL((void*)0))
194 *x = _sg_mouseX;
195 if(y != NULL((void*)0))
196 *y = _sg_mouseY;
197}
198SGint SG_CALL__cdecl sgMouseGetPosX(void)
199{
200 return _sg_mouseX;
201}
202SGint SG_CALL__cdecl sgMouseGetPosY(void)
203{
204 return _sg_mouseY;
205}
206
207SGint SG_CALL__cdecl sgMouseGetWheelPrev(void)
208{
209 return _sg_mouseWheelPrev;
210}
211SGint SG_CALL__cdecl sgMouseGetWheel(void)
212{
213 return _sg_mouseWheel;
214}
215
216SGbool SG_CALL__cdecl sgMouseGetButtonPrev(SGuint button)
217{
218 if(button - 1 < _sg_mouseButtonNum)
219 return _sg_mouseButtonPrev[button - 1];
220 return SG_FALSE0;
221}
222SGbool SG_CALL__cdecl sgMouseGetButton(SGuint button)
223{
224 if(button - 1 < _sg_mouseButtonNum)
225 return _sg_mouseButtonCurr[button - 1];
226 return SG_FALSE0;
227}
228SGbool SG_CALL__cdecl sgMouseGetButtonPress(SGuint button)
229{
230 if(button - 1 < _sg_mouseButtonNum)
231 return !_sg_mouseButtonPrev[button - 1] && _sg_mouseButtonCurr[button - 1];
232 return SG_FALSE0;
233}
234SGbool SG_CALL__cdecl sgMouseGetButtonRelease(SGuint button)
235{
236 if(button - 1 < _sg_mouseButtonNum)
237 return _sg_mouseButtonPrev[button - 1] && !_sg_mouseButtonCurr[button - 1];
238 return SG_FALSE0;
239}
240
241SGbool SG_CALL__cdecl sgMouseGetButtonLeftPrev(void)
242{
243 return sgMouseGetButtonPrev(SG_MOUSE_BUTTON_LEFT1);
244}
245SGbool SG_CALL__cdecl sgMouseGetButtonLeft(void)
246{
247 return sgMouseGetButton(SG_MOUSE_BUTTON_LEFT1);
248}
249SGbool SG_CALL__cdecl sgMouseGetButtonLeftPress(void)
250{
251 return sgMouseGetButtonPress(SG_MOUSE_BUTTON_LEFT1);
252}
253SGbool SG_CALL__cdecl sgMouseGetButtonLeftRelease(void)
254{
255 return sgMouseGetButtonRelease(SG_MOUSE_BUTTON_LEFT1);
256}
257
258SGbool SG_CALL__cdecl sgMouseGetButtonRightPrev(void)
259{
260 return sgMouseGetButtonPrev(SG_MOUSE_BUTTON_RIGHT2);
261}
262SGbool SG_CALL__cdecl sgMouseGetButtonRight(void)
263{
264 return sgMouseGetButton(SG_MOUSE_BUTTON_RIGHT2);
265}
266SGbool SG_CALL__cdecl sgMouseGetButtonRightPress(void)
267{
268 return sgMouseGetButtonPress(SG_MOUSE_BUTTON_RIGHT2);
269}
270SGbool SG_CALL__cdecl sgMouseGetButtonRightRelease(void)
271{
272 return sgMouseGetButtonRelease(SG_MOUSE_BUTTON_RIGHT2);
273}
274
275SGbool SG_CALL__cdecl sgMouseGetButtonMiddlePrev(void)
276{
277 return sgMouseGetButtonPrev(SG_MOUSE_BUTTON_MIDDLE3);
278}
279SGbool SG_CALL__cdecl sgMouseGetButtonMiddle(void)
280{
281 return sgMouseGetButton(SG_MOUSE_BUTTON_MIDDLE3);
282}
283SGbool SG_CALL__cdecl sgMouseGetButtonMiddlePress(void)
284{
285 return sgMouseGetButtonPress(SG_MOUSE_BUTTON_MIDDLE3);
286}
287SGbool SG_CALL__cdecl sgMouseGetButtonMiddleRelease(void)
288{
289 return sgMouseGetButtonRelease(SG_MOUSE_BUTTON_MIDDLE3);
290}