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A better solution to the crash when printing the mandelbrot demo under WIN32.

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git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8294 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy
2011-01-20 12:55:50 +00:00
parent 0eec2893a1
commit 30c1eed80b
1 changed files with 7 additions and 3 deletions
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src/fl_draw_image_win32.cxx
+7 -3
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@@ -174,17 +174,18 @@ static void innards(const uchar *buf, int X, int Y, int W, int H,
int linesize = (pixelsize*w+3)&~3; int linesize = (pixelsize*w+3)&~3;
static U32* buffer; static U32* buffer;
static long buffer_size;
int blocking = h; int blocking = h;
{int size = linesize*h; {int size = linesize*h;
if (size > MAXBUFFER) { // when printing, don't limit buffer size not to get a crash in StretchDIBits
if (size > MAXBUFFER && Fl_Surface_Device::surface()->class_name() != Fl_Printer::class_id) {
size = MAXBUFFER; size = MAXBUFFER;
blocking = MAXBUFFER/linesize; blocking = MAXBUFFER/linesize;
} }
static long buffer_size;
if (size > buffer_size) { if (size > buffer_size) {
delete[] buffer; delete[] buffer;
buffer_size = size; buffer_size = size;
buffer = new U32[(int)(1.02* (size+3)/4)]; // some extra memory needed when printing buffer = new U32[(size+3)/4];
}} }}
bmi.bmiHeader.biHeight = blocking; bmi.bmiHeader.biHeight = blocking;
static U32* line_buffer; static U32* line_buffer;
@@ -267,6 +268,9 @@ static void innards(const uchar *buf, int X, int Y, int W, int H,
DIB_RGB_COLORS DIB_RGB_COLORS
#endif #endif
, SRCCOPY ); , SRCCOPY );
delete[] buffer;
buffer = NULL;
buffer_size = 0;
} }
else { else {
SetDIBitsToDevice(fl_gc, x, y+j-k, w, k, 0, 0, 0, k, SetDIBitsToDevice(fl_gc, x, y+j-k, w, k, 0, 0, 0, k,