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(svn r3741) -Fix: [i686 OSX] reverted the change in rev 3670 for non PowerPC (done with #ifdef) since it appeared to crash intel based macs

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This fix is not a good solution and might not work, but if it works, it's better than nothing until we get the real solution
This commit is contained in:
bjarni 2006-03-02 22:00:57 +00:00
parent 1931b8ea96
commit e29a435226
1 changed files with 39 additions and 26 deletions
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65
video/cocoa_v.m
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@ -1464,41 +1464,54 @@ static void QZ_DrawScreen(void)
uint width;
uint pitch;
uint y;
uint num_dirty_rects;
uint length_drawn;
uint left;
uint i;
src = _cocoa_video_data.pixels;
dst = (uint8*)_cocoa_video_data.realpixels;
height = _cocoa_video_data.height;
width = _cocoa_video_data.width;
pitch = _cocoa_video_data.pitch;
num_dirty_rects = _cocoa_video_data.num_dirty_rects;
/* Check if we need to do anything */
if (_cocoa_video_data.num_dirty_rects == 0 ) return;
#ifdef __POWERPC__
// PPC appears to handle updating of rectangles right
{
uint num_dirty_rects;
uint length_drawn;
uint left;
uint i;
if (num_dirty_rects >= MAX_DIRTY_RECTS) {
num_dirty_rects = 1;
_cocoa_video_data.dirty_rects[0].left = 0;
_cocoa_video_data.dirty_rects[0].top = 0;
_cocoa_video_data.dirty_rects[0].right = _cocoa_video_data.width;
_cocoa_video_data.dirty_rects[0].bottom = _cocoa_video_data.height;
num_dirty_rects = _cocoa_video_data.num_dirty_rects;
/* Check if we need to do anything */
if (num_dirty_rects == 0 ) return;
if (num_dirty_rects >= MAX_DIRTY_RECTS) {
num_dirty_rects = 1;
_cocoa_video_data.dirty_rects[0].left = 0;
_cocoa_video_data.dirty_rects[0].top = 0;
_cocoa_video_data.dirty_rects[0].right = _cocoa_video_data.width;
_cocoa_video_data.dirty_rects[0].bottom = _cocoa_video_data.height;
}
QZ_WaitForVerticalBlank();
/* Build the region of dirty rectangles */
for (i = 0; i < num_dirty_rects; i++) {
y = _cocoa_video_data.dirty_rects[i].top;
left = _cocoa_video_data.dirty_rects[i].left;
length_drawn = _cocoa_video_data.dirty_rects[i].right - left + 1;
height = _cocoa_video_data.dirty_rects[i].bottom;
for (; y <= height; y++) memcpy(dst + y * pitch + left, src + y * width +left, length_drawn);
}
_cocoa_video_data.num_dirty_rects = 0;
}
#else
// it appears that Intel based macs didn't like to only update parts of the screen at a time, so they still update everything at each frame
// we need to switch to use Quartz exclusively (no QuickDraw commands at all) to fix this
// to use Quartz exclusively, we should use 16 or 32 bit graphics since 8 bit coloured graphic support sucks
height = _cocoa_video_data.height;
QZ_WaitForVerticalBlank();
/* Build the region of dirty rectangles */
for (i = 0; i < num_dirty_rects; i++) {
y = _cocoa_video_data.dirty_rects[i].top;
left = _cocoa_video_data.dirty_rects[i].left;
length_drawn = _cocoa_video_data.dirty_rects[i].right - left + 1;
height = _cocoa_video_data.dirty_rects[i].bottom;
for (; y <= height; y++) memcpy(dst + y * pitch + left, src + y * width +left, length_drawn);
}
_cocoa_video_data.num_dirty_rects = 0;
for (y = 0; y < height; y++) memcpy(dst + y * pitch, src + y * width, width);
#endif
}
static int QZ_ListFullscreenModes(OTTDPoint* mode_list, int max_modes)