1 files changed, 248 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel_winsys/intel_pipe_i915simple.c b/src/mesa/drivers/dri/intel_winsys/intel_pipe_i915simple.c
new file mode 100644
index 0000000000..b456550a8c
--- /dev/null
+++ b/src/mesa/drivers/dri/intel_winsys/intel_pipe_i915simple.c
@@ -0,0 +1,248 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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 COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include <stdlib.h>
+#include <xf86drm.h>
+#include "dri_bufpool.h"
+#include "dri_bufmgr.h"
+
+#include "intel_context.h"
+#include "intel_batchbuffer.h"
+#include "intel_pipe.h"
+
+#include "pipe/i915simple/i915_winsys.h"
+
+
+struct intel_i915_winsys {
+   struct i915_winsys winsys;
+   struct intel_context *intel;
+};
+
+
+/* Turn a i915simple winsys into an intel/i915simple winsys:
+ */
+static inline struct intel_i915_winsys *
+intel_i915_winsys( struct i915_winsys *sws )
+{
+   return (struct intel_i915_winsys *)sws;
+}
+
+
+
+/* Many of the winsys's are probably going to have a similar
+ * buffer-manager interface, as something almost identical is
+ * currently exposed in the pipe interface.  Probably want to avoid
+ * endless repetition of this code somehow.
+ */
+static inline struct _DriBufferObject *
+dri_bo( struct pipe_buffer_handle *bo )
+{
+   return (struct _DriBufferObject *)bo;
+}
+
+static inline struct pipe_buffer_handle *
+pipe_bo( struct _DriBufferObject *bo )
+{
+   return (struct pipe_buffer_handle *)bo;
+}
+
+
+/* Most callbacks map direcly onto dri_bufmgr operations:
+ */
+static void *intel_i915_buffer_map(struct i915_winsys *sws, 
+				   struct pipe_buffer_handle *buf )
+{
+   return driBOMap( dri_bo(buf), 
+		    DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0 );
+}
+
+static void intel_i915_buffer_unmap(struct i915_winsys *sws, 
+				    struct pipe_buffer_handle *buf)
+{
+   driBOUnmap( dri_bo(buf) );
+}
+
+
+static struct pipe_buffer_handle *
+intel_i915_buffer_reference(struct i915_winsys *sws,
+		       struct pipe_buffer_handle *buf)
+{
+   return pipe_bo( driBOReference( dri_bo(buf) ) );
+}
+
+static void intel_i915_buffer_unreference(struct i915_winsys *sws, 
+				     struct pipe_buffer_handle **buf)
+{
+   if (*buf) {
+      driBOUnReference( dri_bo(*buf) );
+      *buf = NULL;
+   }
+}
+
+/* Grabs the hardware lock!
+ */
+static void intel_i915_buffer_data(struct i915_winsys *sws, 
+			      struct pipe_buffer_handle *buf,
+			      unsigned size, const void *data )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+
+   LOCK_HARDWARE( intel );
+   driBOData( dri_bo(buf), size, data, 0 );
+   UNLOCK_HARDWARE( intel );
+}
+
+static void intel_i915_buffer_subdata(struct i915_winsys *sws, 
+				 struct pipe_buffer_handle *buf,
+				 unsigned long offset, 
+				 unsigned long size, 
+				 const void *data)
+{
+   driBOSubData( dri_bo(buf), offset, size, data );
+}
+
+static void intel_i915_buffer_get_subdata(struct i915_winsys *sws, 
+				     struct pipe_buffer_handle *buf,
+				     unsigned long offset, 
+				     unsigned long size, 
+				     void *data)
+{
+   driBOGetSubData( dri_bo(buf), offset, size, data );
+}
+
+/* I915simple has no concept of pools.  We choose the tex/region pool
+ * for all buffers.
+ */
+static struct pipe_buffer_handle *
+intel_i915_buffer_create(struct i915_winsys *sws, 
+			 unsigned alignment)
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+   struct _DriBufferObject *buffer;
+
+   LOCK_HARDWARE( intel );
+   driGenBuffers( intel->intelScreen->regionPool, 
+		  "i915simple buffer", 1, &buffer, alignment, 0, 0 );
+   UNLOCK_HARDWARE( intel );
+
+   return pipe_bo(buffer);
+}
+
+
+/* Simple batchbuffer interface:
+ */
+
+static unsigned *intel_i915_batch_start( struct i915_winsys *sws,
+					 unsigned dwords,
+					 unsigned relocs )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+
+   /* XXX: check relocs. 
+    */
+   if (intel_batchbuffer_space( intel->batch ) < dwords * 4) {
+      /* XXX: Hmm, the driver can't really do much with this pointer: 
+       */
+      //return intel->batch->ptr;	
+      return (unsigned *)~0;
+   }
+   else 
+      return NULL;
+}
+
+static void intel_i915_batch_dword( struct i915_winsys *sws,
+				    unsigned dword )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+   intel_batchbuffer_emit_dword( intel->batch, dword );
+}
+
+static void intel_i915_batch_reloc( struct i915_winsys *sws,
+			     struct pipe_buffer_handle *buf,
+			     unsigned access_flags,
+			     unsigned delta )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+   unsigned flags = 0;
+   unsigned mask = 0;
+
+   intel_batchbuffer_emit_reloc( intel->batch, 
+				 dri_bo( buf ),
+				 flags, mask, 
+				 delta );
+}
+
+static void intel_i915_batch_flush( struct i915_winsys *sws )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+
+   intel_batchbuffer_flush( intel->batch );
+}
+
+static void intel_i915_batch_wait_idle( struct i915_winsys *sws )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+
+   if (intel->batch->last_fence) {
+      driFenceFinish(intel->batch->last_fence, 
+		     DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW, GL_FALSE);
+      driFenceUnReference(intel->batch->last_fence);
+      intel->batch->last_fence = NULL;
+   }
+}
+
+struct pipe_context *
+intel_create_i915simple( struct intel_context *intel )
+{
+   struct intel_i915_winsys *iws = CALLOC_STRUCT( intel_i915_winsys );
+   
+   /* Fill in this struct with callbacks that i915simple will need to
+    * communicate with the window system, buffer manager, etc. 
+    */
+   iws->winsys.buffer_create = intel_i915_buffer_create;
+   iws->winsys.buffer_map = intel_i915_buffer_map;
+   iws->winsys.buffer_unmap = intel_i915_buffer_unmap;
+   iws->winsys.buffer_reference = intel_i915_buffer_reference;
+   iws->winsys.buffer_unreference = intel_i915_buffer_unreference;
+   iws->winsys.buffer_data = intel_i915_buffer_data;
+   iws->winsys.buffer_subdata = intel_i915_buffer_subdata;
+   iws->winsys.buffer_get_subdata = intel_i915_buffer_get_subdata;
+   iws->winsys.batch_start = intel_i915_batch_start;
+   iws->winsys.batch_dword = intel_i915_batch_dword;
+   iws->winsys.batch_reloc = intel_i915_batch_reloc;
+   iws->winsys.batch_flush = intel_i915_batch_flush;
+   iws->winsys.batch_wait_idle = intel_i915_batch_wait_idle;
+   iws->intel = intel;
+
+   /* Create the i915simple context:
+    */
+   return i915_create( &iws->winsys );
+}