1 files changed, 116 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_batch.h b/src/gallium/drivers/i915simple/i915_batch.h
new file mode 100644
index 0000000000..45bf4f4028
--- /dev/null
+++ b/src/gallium/drivers/i915simple/i915_batch.h
@@ -0,0 +1,116 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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.
+ * 
+ **************************************************************************/
+
+#ifndef I915_BATCH_H
+#define I915_BATCH_H
+
+#include "i915_winsys.h"
+
+struct i915_batchbuffer
+{
+   struct pipe_buffer *buffer;
+   struct i915_winsys *winsys;
+
+   unsigned char *map;
+   unsigned char *ptr;
+
+   size_t size;
+   size_t actual_size;
+
+   size_t relocs;
+   size_t max_relocs;
+};
+
+static INLINE boolean
+i915_batchbuffer_check( struct i915_batchbuffer *batch,
+			size_t dwords,
+			size_t relocs )
+{
+   /** TODO JB: Check relocs */
+   return dwords * 4 <= batch->size - (batch->ptr - batch->map);
+}
+
+static INLINE size_t
+i915_batchbuffer_space( struct i915_batchbuffer *batch )
+{
+   return batch->size - (batch->ptr - batch->map);
+}
+
+static INLINE void
+i915_batchbuffer_dword( struct i915_batchbuffer *batch,
+			unsigned dword )
+{
+   if (i915_batchbuffer_space(batch) < 4)
+      return;
+
+   *(unsigned *)batch->ptr = dword;
+   batch->ptr += 4;
+}
+
+static INLINE void
+i915_batchbuffer_write( struct i915_batchbuffer *batch,
+			void *data,
+			size_t size )
+{
+   if (i915_batchbuffer_space(batch) < size)
+      return;
+
+   memcpy(data, batch->ptr, size);
+   batch->ptr += size;
+}
+
+static INLINE void
+i915_batchbuffer_reloc( struct i915_batchbuffer *batch,
+			struct pipe_buffer *buffer,
+			size_t flags,
+			size_t offset )
+{
+   batch->winsys->batch_reloc( batch->winsys, buffer, flags, offset );
+}
+
+static INLINE void
+i915_batchbuffer_flush( struct i915_batchbuffer *batch,
+			struct pipe_fence_handle **fence )
+{
+   batch->winsys->batch_flush( batch->winsys, fence );
+}
+
+#define BEGIN_BATCH( dwords, relocs ) \
+   (i915_batchbuffer_check( i915->batch, dwords, relocs ))
+
+#define OUT_BATCH( dword ) \
+   i915_batchbuffer_dword( i915->batch, dword )
+
+#define OUT_RELOC( buf, flags, delta ) \
+   i915_batchbuffer_reloc( i915->batch, buf, flags, delta )
+
+#define FLUSH_BATCH(fence) do { 			\
+   i915->winsys->batch_flush( i915->winsys, fence );	\
+   i915->hardware_dirty = ~0;				\
+} while (0)
+
+#endif