diff options
| -rw-r--r-- | src/mesa/drivers/dri/i915tex/intel_buffers.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i915tex/intel_buffers.c b/src/mesa/drivers/dri/i915tex/intel_buffers.c index 35236edc0c..174f3c6351 100644 --- a/src/mesa/drivers/dri/i915tex/intel_buffers.c +++ b/src/mesa/drivers/dri/i915tex/intel_buffers.c @@ -257,6 +257,8 @@ intelWindowMoved(struct intel_context *intel) if (pf_pipes == 0x3 && pf_pipes != intel_fb->pf_pipes && (intel->sarea->pf_current_page & 0x3) != (((intel->sarea->pf_current_page) >> 2) & 0x3)) { + drm_i915_flip_t flip; + if (intel_fb->pf_current_page == (intel->sarea->pf_current_page & 0x3)) { /* XXX: This is ugly, but emitting two flips 'in a row' can cause @@ -265,13 +267,21 @@ intelWindowMoved(struct intel_context *intel) intel->sarea->pf_current_page = intel->sarea->pf_current_page & 0x3; intel->sarea->pf_current_page |= - intel->sarea->pf_current_page << 2; + ((intel_fb->pf_current_page + intel_fb->pf_num_pages - 1) % + intel_fb->pf_num_pages) << 2; + + flip.pipes = 0x2; } else { intel->sarea->pf_current_page = intel->sarea->pf_current_page & (0x3 << 2); intel->sarea->pf_current_page |= - intel->sarea->pf_current_page >> 2; + (intel_fb->pf_current_page + intel_fb->pf_num_pages - 1) % + intel_fb->pf_num_pages; + + flip.pipes = 0x1; } + + drmCommandWrite(intel->driFd, DRM_I915_FLIP, &flip, sizeof(flip)); } intel_fb->pf_pipes = pf_pipes; |