diff options
| -rw-r--r-- | src/gallium/state_trackers/wgl/stw_device.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/gallium/state_trackers/wgl/stw_device.c b/src/gallium/state_trackers/wgl/stw_device.c index 445db9cd9b8..e65e71dc15f 100644 --- a/src/gallium/state_trackers/wgl/stw_device.c +++ b/src/gallium/state_trackers/wgl/stw_device.c @@ -48,7 +48,19 @@ static int stw_get_param(struct st_manager *smapi, enum st_manager_param param) { - return 0; + switch (param) { + case ST_MANAGER_BROKEN_INVALIDATE: + /* + * Force framebuffer validation on glViewport. + * + * Certain applications, like Rhinoceros 4, uses glReadPixels + * exclusively (never uses SwapBuffers), so framebuffers never get + * resized unless we check on glViewport. + */ + return 1; + default: + return 0; + } } boolean |