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Diffstat (limited to 'src/gallium/drivers/virgl/virgl_streamout.c')
-rw-r--r--src/gallium/drivers/virgl/virgl_streamout.c87
1 files changed, 87 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..95420f688d3
--- /dev/null
+++ b/src/gallium/drivers/virgl/virgl_streamout.c
@@ -0,0 +1,87 @@
+/*
+ * 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_memory.h"
+#include "util/u_inlines.h"
+#include "virgl_context.h"
+#include "virgl_encode.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 = (struct virgl_context *)ctx;
+ struct virgl_resource *res = (struct 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 = (struct virgl_context *)ctx;
+ struct virgl_so_target *t = (struct 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 = (struct 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;
+}