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-rw-r--r--src/gallium/drivers/softpipe/sp_state_so.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_state_so.c b/src/gallium/drivers/softpipe/sp_state_so.c
new file mode 100644
index 0000000000..49bde22e97
--- /dev/null
+++ b/src/gallium/drivers/softpipe/sp_state_so.c
@@ -0,0 +1,106 @@
+/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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 "sp_context.h"
+#include "sp_state.h"
+#include "sp_texture.h"
+
+#include "util/u_format.h"
+#include "util/u_memory.h"
+#include "draw/draw_context.h"
+
+
+void *
+softpipe_create_stream_output_state(struct pipe_context *pipe,
+ const struct pipe_stream_output_state *templ)
+{
+ struct sp_so_state *so;
+ so = (struct sp_so_state *) CALLOC_STRUCT(sp_so_state);
+
+ if (so) {
+ so->base.num_outputs = templ->num_outputs;
+ so->base.stride = templ->stride;
+ memcpy(so->base.output_buffer,
+ templ->output_buffer,
+ sizeof(int) * templ->num_outputs);
+ memcpy(so->base.register_index,
+ templ->register_index,
+ sizeof(int) * templ->num_outputs);
+ memcpy(so->base.register_mask,
+ templ->register_mask,
+ sizeof(ubyte) * templ->num_outputs);
+ }
+ return so;
+}
+
+void
+softpipe_bind_stream_output_state(struct pipe_context *pipe,
+ void *so)
+{
+ struct softpipe_context *softpipe = softpipe_context(pipe);
+ struct sp_so_state *sp_so = (struct sp_so_state *) so;
+
+ softpipe->so = sp_so;
+
+ softpipe->dirty |= SP_NEW_SO;
+
+ if (sp_so)
+ draw_set_so_state(softpipe->draw, &sp_so->base);
+}
+
+void
+softpipe_delete_stream_output_state(struct pipe_context *pipe, void *so)
+{
+ FREE( so );
+}
+
+void
+softpipe_set_stream_output_buffers(struct pipe_context *pipe,
+ struct pipe_resource **buffers,
+ int *offsets,
+ int num_buffers)
+{
+ struct softpipe_context *softpipe = softpipe_context(pipe);
+ int i;
+ void *map_buffers[PIPE_MAX_SO_BUFFERS];
+
+ assert(num_buffers <= PIPE_MAX_SO_BUFFERS);
+
+ softpipe->dirty |= SP_NEW_SO_BUFFERS;
+
+ for (i = 0; i < num_buffers; ++i) {
+ void *mapped = softpipe_resource(buffers[i])->data;
+ if (offsets[i] >= 0)
+ map_buffers[i] = ((char*)mapped) + offsets[i];
+ else {
+ /* this is a buffer append */
+ assert(!"appending not implemented");
+ map_buffers[i] = mapped;
+ }
+ }
+ draw_set_mapped_so_buffers(softpipe->draw, map_buffers, num_buffers);
+}