r300g/swtcl: fix provoking vertex

[mesa.git] / src / gallium / drivers / r300 / r300_transfer.c

diff --git a/src/gallium/drivers/r300/r300_transfer.c b/src/gallium/drivers/r300/r300_transfer.c
index 0dae9ef98b739473185edaa6034ae8dae17be9a5..14a9bfd86501f0e52abb4023fa8e64cf55fa38f2 100644 (file)
--- a/src/gallium/drivers/r300/r300_transfer.c
+++ b/src/gallium/drivers/r300/r300_transfer.c
@@ -127,6 +127,12 @@ r300_texture_get_transfer(struct pipe_context *ctx,
     struct r300_transfer *trans;
     struct pipe_resource base;
 
+    /* XXX Why aren't flushes taken care of by winsys automatically?
+     * Winsys seems to sometimes return a cached buffer instead of
+     * a mapped hardware buffer if this flush is commented out. */
+    if (ctx->is_resource_referenced(ctx, texture, sr.face, sr.level))
+        ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
+
     trans = CALLOC_STRUCT(r300_transfer);
     if (trans) {
         /* Initialize the transfer object. */