1 files changed, 88 insertions, 0 deletions
diff --git a/src/gallium/drivers/virgl/virgl_streamout.c b/src/gallium/drivers/virgl/virgl_streamout.c
new file mode 100644
index 00000000000..b6a65fff29e
--- /dev/null
+++ b/src/gallium/drivers/virgl/virgl_streamout.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2014, 2015 Red Hat.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "virgl_context.h"
+#include "virgl_encode.h"
+#include "virgl_protocol.h"
+#include "virgl_resource.h"
+
+static struct pipe_stream_output_target *virgl_create_so_target(
+   struct pipe_context *ctx,
+   struct pipe_resource *buffer,
+   unsigned buffer_offset,
+   unsigned buffer_size)
+{
+   struct virgl_context *vctx = virgl_context(ctx);
+   struct virgl_resource *res = virgl_resource(buffer);
+   struct virgl_so_target *t = CALLOC_STRUCT(virgl_so_target);
+   uint32_t handle;
+
+   if (!t)
+      return NULL;
+   handle = virgl_object_assign_handle();
+
+   t->base.reference.count = 1;
+   t->base.context = ctx;
+   pipe_resource_reference(&t->base.buffer, buffer);
+   t->base.buffer_offset = buffer_offset;
+   t->base.buffer_size = buffer_size;
+   t->handle = handle;
+   res->clean = FALSE;
+   virgl_encoder_create_so_target(vctx, handle, res, buffer_offset, buffer_size);
+   return &t->base;
+}
+
+static void virgl_destroy_so_target(struct pipe_context *ctx,
+                                   struct pipe_stream_output_target *target)
+{
+   struct virgl_context *vctx = virgl_context(ctx);
+   struct virgl_so_target *t = virgl_so_target(target);
+
+   pipe_resource_reference(&t->base.buffer, NULL);
+   virgl_encode_delete_object(vctx, t->handle, VIRGL_OBJECT_STREAMOUT_TARGET);
+   FREE(t);
+}
+
+static void virgl_set_so_targets(struct pipe_context *ctx,
+                                unsigned num_targets,
+                                struct pipe_stream_output_target **targets,
+                                const unsigned *offset)
+{
+   struct virgl_context *vctx = virgl_context(ctx);
+   int i;
+   for (i = 0; i < num_targets; i++) {
+      pipe_resource_reference(&vctx->so_targets[i].base.buffer, targets[i]->buffer);
+   }
+   for (i = num_targets; i < vctx->num_so_targets; i++)
+      pipe_resource_reference(&vctx->so_targets[i].base.buffer, NULL);
+   vctx->num_so_targets = num_targets;
+   virgl_encoder_set_so_targets(vctx, num_targets, targets, 0);//append_bitmask);
+}
+
+void virgl_init_so_functions(struct virgl_context *vctx)
+{
+   vctx->base.create_stream_output_target = virgl_create_so_target;
+   vctx->base.stream_output_target_destroy = virgl_destroy_so_target;
+   vctx->base.set_stream_output_targets = virgl_set_so_targets;
+}