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Diffstat (limited to 'src/mesa/drivers/dri/i915/intel_blit.c')
-rw-r--r--src/mesa/drivers/dri/i915/intel_blit.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_blit.c b/src/mesa/drivers/dri/i915/intel_blit.c
index 6c0c666f559..aa7a095c84f 100644
--- a/src/mesa/drivers/dri/i915/intel_blit.c
+++ b/src/mesa/drivers/dri/i915/intel_blit.c
@@ -323,6 +323,18 @@ void intelClearWithBlit(GLcontext *ctx, GLbitfield mask, GLboolean all,
drm_clip_rect_t clear;
int i;
+ /* Refresh the cx/y/w/h values as they may have been invalidated
+ * by a new window position or size picked up when we did
+ * LOCK_HARDWARE above. The values passed by mesa are not
+ * reliable.
+ */
+ {
+ cx = ctx->DrawBuffer->_Xmin;
+ cy = ctx->DrawBuffer->_Ymin;
+ ch = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
+ cw = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
+ }
+
if (intel->ctx.DrawBuffer->Name == 0) {
/* clearing a window */