1 files changed, 59 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/d3d1x/d3d1xshader/src/dxbc_assemble.cpp b/src/gallium/state_trackers/d3d1x/d3d1xshader/src/dxbc_assemble.cpp
new file mode 100644
index 0000000000..1021a8a1bd
--- /dev/null
+++ b/src/gallium/state_trackers/d3d1x/d3d1xshader/src/dxbc_assemble.cpp
@@ -0,0 +1,59 @@
+/**************************************************************************
+ *
+ * Copyright 2010 Luca Barbieri
+ *
+ * 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, sublicense, 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 NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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 <stdlib.h>
+#include <string.h>
+#include "dxbc.h"
+
+std::pair<void*, size_t> dxbc_assemble(struct dxbc_chunk_header** chunks, unsigned num_chunks)
+{
+	size_t data_size = 0;
+	for(unsigned i = 0; i < num_chunks; ++i)
+		data_size += sizeof(uint32_t) + sizeof(dxbc_chunk_header) + bswap_le32(chunks[i]->size);
+
+	size_t total_size = sizeof(dxbc_container_header) + data_size;
+	dxbc_container_header* header = (dxbc_container_header*)malloc(total_size);
+	if(!header)
+		return std::make_pair((void*)0, 0);
+
+	header->fourcc = bswap_le32(FOURCC_DXBC);
+	memset(header->unk, 0, sizeof(header->unk));
+	header->one = bswap_le32(1);
+	header->total_size = bswap_le32(total_size);
+	header->chunk_count = num_chunks;
+
+	uint32_t* chunk_offsets = (uint32_t*)(header + 1);
+	uint32_t off = sizeof(struct dxbc_container_header) + num_chunks * sizeof(uint32_t);
+	for(unsigned i = 0; i < num_chunks; ++i)
+	{
+		chunk_offsets[i] = bswap_le32(off);
+		unsigned chunk_full_size = sizeof(dxbc_chunk_header) + bswap_le32(chunks[i]->size);
+		memcpy((char*)header + off, chunks[i], chunk_full_size);
+		off += chunk_full_size;
+	}
+
+	return std::make_pair((void*)header, total_size);
+}