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(svn r11813) -Fix [FS#1602]: Switch _screen to the output buffer and disable usage of 32bpp-anim animation buffer during giant screenshots.

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frosch
2008-01-11 17:12:41 +00:00
parent 4d04077156
commit cbe7e5d668
4 changed files with 47 additions and 4 deletions
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23
src/screenshot.cpp
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@@ -488,13 +488,29 @@ static void CurrentScreenCallback(void *userdata, void *buf, uint y, uint pitch,
blitter->CopyImageToBuffer(src, buf, _screen.width, n, pitch);
}
/* generate a large piece of the world */
/** generate a large piece of the world
* @param userdata Viewport area to draw
* @param buf Videobuffer with same bitdepth as current blitter
* @param y First line to render
* @param pitch Pitch of the videobuffer
* @param n Number of lines to render
*/
static void LargeWorldCallback(void *userdata, void *buf, uint y, uint pitch, uint n)
{
ViewPort *vp = (ViewPort *)userdata;
DrawPixelInfo dpi, *old_dpi;
int wx, left;
/* We are no longer rendering to the screen */
DrawPixelInfo old_screen = _screen;
bool old_disable_anim = _screen_disable_anim;
_screen.dst_ptr = buf;
_screen.width = pitch;
_screen.height = n;
_screen.pitch = pitch;
_screen_disable_anim = true;
old_dpi = _cur_dpi;
_cur_dpi = &dpi;
@@ -506,6 +522,7 @@ static void LargeWorldCallback(void *userdata, void *buf, uint y, uint pitch, ui
dpi.left = 0;
dpi.top = y;
/* Render viewport in blocks of 1600 pixels width */
left = 0;
while (vp->width - left != 0) {
wx = min(vp->width - left, 1600);
@@ -520,6 +537,10 @@ static void LargeWorldCallback(void *userdata, void *buf, uint y, uint pitch, ui
}
_cur_dpi = old_dpi;
/* Switch back to rendering to the screen */
_screen = old_screen;
_screen_disable_anim = old_disable_anim;
}
static char *MakeScreenshotName(const char *ext)