Merge branch 'gallium-tex-surface' into gallium-0.1

Conflicts:

	src/gallium/include/pipe/p_util.h

1 files changed, 184 insertions, 0 deletions

diff --git a/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c b/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c
new file mode 100644
index 0000000000..8ec5c7e82a
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c
@@ -0,0 +1,184 @@
+/**************************************************************************
+ * 
+ * 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 "ws_dri_bufpool.h"
+#include "ws_dri_bufmgr.h"
+
+#include "intel_context.h"
+#include "intel_batchbuffer.h"
+#include "intel_winsys.h"
+
+#include "pipe/p_util.h"
+#include "pipe/p_winsys.h"
+#include "i915simple/i915_winsys.h"
+#include "i915simple/i915_screen.h"
+
+
+struct intel_i915_winsys {
+   struct i915_winsys winsys;   /**< batch buffer funcs */
+   struct pipe_winsys *pws;
+   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;
+}
+
+
+/* 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 (unsigned *)intel->batch->ptr;	
+   }
+   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 *buf,
+			     unsigned access_flags,
+			     unsigned delta )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+   unsigned flags = DRM_BO_FLAG_MEM_TT;
+   unsigned mask = DRM_BO_MASK_MEM;
+
+   if (access_flags & I915_BUFFER_ACCESS_WRITE) {
+      flags |= DRM_BO_FLAG_WRITE;
+      mask |= DRM_BO_FLAG_WRITE;
+   }
+
+   if (access_flags & I915_BUFFER_ACCESS_READ) {
+      flags |= DRM_BO_FLAG_READ;
+      mask |= DRM_BO_FLAG_READ;
+   }
+
+#if 0 /* JB old */
+   intel_batchbuffer_emit_reloc( intel->batch,
+				 dri_bo( buf ),
+				 flags, mask,
+				 delta );
+#else /* new */
+   intel_offset_relocation( intel->batch,
+			    delta,
+			    dri_bo( buf ),
+			    flags,
+			    mask );
+#endif
+}
+
+
+
+static void intel_i915_batch_flush( struct i915_winsys *sws,
+                                    struct pipe_fence_handle **fence )
+{
+   struct intel_i915_winsys *iws = intel_i915_winsys(sws);
+   struct intel_context *intel = iws->intel;
+   union {
+      struct _DriFenceObject *dri;
+      struct pipe_fence_handle *pipe;
+   } fu;
+
+   if (fence)
+      assert(!*fence);
+
+   fu.dri = intel_batchbuffer_flush( intel->batch );
+
+   if (!fu.dri) {
+      assert(0);
+      *fence = NULL;
+      return;
+   }
+
+   if (fu.dri) {
+      if (fence)
+	 *fence = fu.pipe;
+      else
+	 driFenceUnReference(&fu.dri);
+   }
+
+}
+
+
+/**
+ * Create i915 hardware rendering context.
+ */
+struct pipe_context *
+intel_create_i915simple( struct intel_context *intel,
+                         struct pipe_winsys *winsys )
+{
+   struct intel_i915_winsys *iws = CALLOC_STRUCT( intel_i915_winsys );
+   struct pipe_screen *screen;
+   
+   /* Fill in this struct with callbacks that i915simple will need to
+    * communicate with the window system, buffer manager, etc. 
+    */
+   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->pws = winsys;
+   iws->intel = intel;
+
+   screen = i915_create_screen(winsys, PCI_CHIP_I945_GM);
+   assert(screen);
+
+   /* Create the i915simple context:
+    */
+   return i915_create_context( screen,
+                               winsys,
+                               &iws->winsys );
+}