freedreno: track batch/blit types

Add a bit of extra book-keeping about blits and back-blits (from
resource shadowing).  If the app uploads all mipmap levels, as opposed
to uploading the first level and then glGenerateMipmap(), we can discard
the back-blit (as opposed to being naive and shadowing the resource for
each mipmap level).  Also, after a normal blit, we might as well flush
the batch immediately, since there is not likely to be further rendering
to the surface.

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 10 insertions, 6 deletions

diff --git a/src/gallium/drivers/freedreno/freedreno_draw.c b/src/gallium/drivers/freedreno/freedreno_draw.c
index fd3da1f20e5..dd4a720dd0e 100644
--- a/src/gallium/drivers/freedreno/freedreno_draw.c
+++ b/src/gallium/drivers/freedreno/freedreno_draw.c
@@ -84,15 +84,19 @@ fd_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
 		return;
 	}
 
-	if (ctx->discard) {
-		fd_batch_reset(ctx->batch);
-		ctx->discard = false;
+	if (ctx->in_blit) {
+		fd_batch_reset(batch);
+		ctx->dirty = ~0;
 	}
 
+	batch->blit = ctx->in_blit;
+	batch->back_blit = ctx->in_shadow;
+
 	/* NOTE: needs to be before resource_written(batch->query_buf), otherwise
 	 * query_buf may not be created yet.
 	 */
 	fd_hw_query_set_stage(batch, batch->draw, FD_STAGE_DRAW);
+
 	/*
 	 * Figure out the buffers/features we need:
 	 */
@@ -219,9 +223,9 @@ fd_clear(struct pipe_context *pctx, unsigned buffers,
 	if (!fd_render_condition_check(pctx))
 		return;
 
-	if (ctx->discard) {
-		fd_batch_reset(ctx->batch);
-		ctx->discard = false;
+	if (ctx->in_blit) {
+		fd_batch_reset(batch);
+		ctx->dirty = ~0;
 	}
 
 	/* for bookkeeping about which buffers have been cleared (and thus