thirdparty/scummvm
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Add some paranoia checks

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svn-id: r17101
This commit is contained in:
Max Horn 2005-03-12 16:32:32 +00:00
parent 03051c1501
commit 6f7315d950
1 changed files with 6 additions and 0 deletions
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6
backends/sdl/graphics.cpp
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@ -724,6 +724,7 @@ void OSystem_SDL::clearScreen() {
void OSystem_SDL::copyRectToScreen(const byte *src, int pitch, int x, int y, int w, int h) {
assert (_transactionMode == kTransactionNone);
assert(src);
if (_screen == NULL)
return;
@ -857,6 +858,7 @@ void OSystem_SDL::addDirtyRect(int x, int y, int w, int h, bool mouseRect) {
void OSystem_SDL::makeChecksums(const byte *buf) {
assert(buf);
uint32 *sums = _dirtyChecksums;
uint x,y;
const uint last_x = (uint)_screenWidth / 8;
@ -894,6 +896,7 @@ void OSystem_SDL::makeChecksums(const byte *buf) {
}
void OSystem_SDL::addDirtyRgnAuto(const byte *buf) {
assert(buf);
assert(((long)buf & 3) == 0);
/* generate a table of the checksums */
@ -945,6 +948,7 @@ int16 OSystem_SDL::getWidth() {
}
void OSystem_SDL::setPalette(const byte *colors, uint start, uint num) {
assert(colors);
const byte *b = colors;
uint i;
SDL_Color *base = _currentPalette + start;
@ -967,6 +971,7 @@ void OSystem_SDL::setPalette(const byte *colors, uint start, uint num) {
}
void OSystem_SDL::setCursorPalette(const byte *colors, uint start, uint num) {
assert(colors);
const byte *b = colors;
uint i;
SDL_Color *base = _cursorPalette + start;
@ -1432,6 +1437,7 @@ void OSystem_SDL::drawMouse() {
#ifdef USE_OSD
void OSystem_SDL::displayMessageOnOSD(const char *msg) {
assert (_transactionMode == kTransactionNone);
assert(msg);
uint i;