Hi, All
We compiled Qt for OpenGL ES, And we modified the Qt source file
pvrqwswsegl.c, ‘cause we couldn’t compile successfully without these
changes, we couldn’t found any definition about
“WSEGL_CAP_WINDOWS_USE_MBX_SYNC” or “WSEGL_CAP_PIXMAPS_USE_MBX_SYNC”.
Original:
/* Capability information for the display */
/*static WSEGLCaps const wseglDisplayCaps[] = {
\{WSEGL\_CAP\_WINDOWS\_USE\_MBX\_SYNC, 1\},
\{WSEGL\_CAP\_PIXMAPS\_USE\_MBX\_SYNC, 1\},
\{WSEGL\_NO\_CAPS, 0\}
};*/
Now:
static WSEGLCaps const wseglDisplayCaps[] = {
\{WSEGL\_CAP\_WINDOWS\_USE\_HW\_SYNC, 1\},
\{WSEGL\_CAP\_PIXMAPS\_USE\_HW\_SYNC, 1\},
\{WSEGL\_NO\_CAPS, 0\}
};
We only found some definitions in “#include <wsegl.h>” like this, so
we changed above according below definitions:
typedef enum WSEGLCapsType_TAG
{
WSEGL_NO_CAPS = 0,
WSEGL_CAP_MIN_SWAP_INTERVAL = 1, /* System default value = 1 */
WSEGL_CAP_MAX_SWAP_INTERVAL = 2, /* System default value = 1 */
WSEGL_CAP_WINDOWS_USE_HW_SYNC = 3, /* System default value = 0 (FALSE) */
WSEGL_CAP_PIXMAPS_USE_HW_SYNC = 4, /* System default value = 0 (FALSE) */
} WSEGLCapsType;
The building is ok, when we tested hellogl_es example in Ot, we got
some troubles rendering image, with many different color flashing on
the widget, and twinkling very fast. Do you think that it’s the
problem what we have done to Qt sources?
If yes, how should the really structure be (I mean the “static
WSEGLCaps const wseglDisplayCaps[]” what I have mentioned above ) ?
If the original structure arguments are right, why it can’t found the
definition of WSEGL_CAP_PIXMAPS_USE_MBX_SYNC and
WSEGL_CAP_WINDOWS_USE_MBX_SYNC?
please give me some advices, and any help is highly appreciated.
Thanks
Best Regards
