Merge commit 'origin/gallium-master-merge'

This is the big merge of the gallium-0.2 branch into master.
gallium-master-merge was just the staging area for it.
Both gallium-0.2 and gallium-master-merge are considered closed now.

Conflicts:

	progs/demos/Makefile
	src/mesa/main/state.c
	src/mesa/main/texenvprogram.c

1 files changed, 209 insertions, 0 deletions

diff --git a/src/gallium/drivers/i965simple/brw_winsys.h b/src/gallium/drivers/i965simple/brw_winsys.h
new file mode 100644
index 00000000000..ec1e400418f
--- /dev/null
+++ b/src/gallium/drivers/i965simple/brw_winsys.h
@@ -0,0 +1,209 @@
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * This is the interface that i965simple requires any window system
+ * hosting it to implement.  This is the only include file in i965simple
+ * which is public.
+ *
+ */
+
+#ifndef BRW_WINSYS_H
+#define BRW_WINSYS_H
+
+
+#include "pipe/p_defines.h"
+
+
+/* Pipe drivers are (meant to be!) independent of both GL and the
+ * window system.  The window system provides a buffer manager and a
+ * set of additional hooks for things like command buffer submission,
+ * etc.
+ *
+ * There clearly has to be some agreement between the window system
+ * driver and the hardware driver about the format of command buffers,
+ * etc.
+ */
+
+struct pipe_buffer;
+struct pipe_fence_handle;
+struct pipe_winsys;
+struct pipe_screen;
+
+
+/* The pipe driver currently understands the following chipsets:
+ */
+#define PCI_CHIP_I965_G			0x29A2
+#define PCI_CHIP_I965_Q			0x2992
+#define PCI_CHIP_I965_G_1		0x2982
+#define PCI_CHIP_I965_GM                0x2A02
+#define PCI_CHIP_I965_GME               0x2A12
+
+
+/* These are the names of all the state caches managed by the driver.
+ * 
+ * When data is uploaded to a buffer with buffer_subdata, we use the
+ * special version of that function below so that information about
+ * what type of data this is can be passed to the winsys backend.
+ * That in turn allows the correct flags to be set in the aub file
+ * dump to allow human-readable file dumps later on.
+ */
+
+enum brw_cache_id {
+   BRW_CC_VP,
+   BRW_CC_UNIT,
+   BRW_WM_PROG,
+   BRW_SAMPLER_DEFAULT_COLOR,
+   BRW_SAMPLER,
+   BRW_WM_UNIT,
+   BRW_SF_PROG,
+   BRW_SF_VP,
+   BRW_SF_UNIT,
+   BRW_VS_UNIT,
+   BRW_VS_PROG,
+   BRW_GS_UNIT,
+   BRW_GS_PROG,
+   BRW_CLIP_VP,
+   BRW_CLIP_UNIT,
+   BRW_CLIP_PROG,
+   BRW_SS_SURFACE,
+   BRW_SS_SURF_BIND,
+
+   BRW_MAX_CACHE
+};
+
+#define BRW_CONSTANT_BUFFER BRW_MAX_CACHE
+
+/**
+ * Additional winsys interface for i965simple.
+ *
+ * It is an over-simple batchbuffer mechanism.  Will want to improve the
+ * performance of this, perhaps based on the cmdstream stuff.  It
+ * would be pretty impossible to implement swz on top of this
+ * interface.
+ *
+ * Will also need additions/changes to implement static/dynamic
+ * indirect state.
+ */
+struct brw_winsys {
+
+   void (*destroy)(struct brw_winsys *);
+   
+   /**
+    * Reserve space on batch buffer.
+    *
+    * Returns a null pointer if there is insufficient space in the batch buffer
+    * to hold the requested number of dwords and relocations.
+    *
+    * The number of dwords should also include the number of relocations.
+    */
+   unsigned *(*batch_start)(struct brw_winsys *sws,
+                            unsigned dwords,
+                            unsigned relocs);
+
+   void (*batch_dword)(struct brw_winsys *sws,
+                       unsigned dword);
+
+   /**
+    * Emit a relocation to a buffer.
+    *
+    * Used not only when the buffer addresses are not pinned, but also to
+    * ensure refered buffers will not be destroyed until the current batch
+    * buffer execution is finished.
+    *
+    * The access flags is a combination of I915_BUFFER_ACCESS_WRITE and
+    * I915_BUFFER_ACCESS_READ macros.
+    */
+   void (*batch_reloc)(struct brw_winsys *sws,
+                       struct pipe_buffer *buf,
+                       unsigned access_flags,
+                       unsigned delta);
+
+
+   /* Not used yet, but really want this:
+    */
+   void (*batch_end)( struct brw_winsys *sws );
+
+   /**
+    * Flush the batch buffer.
+    *
+    * Fence argument must point to NULL or to a previous fence, and the caller
+    * must call fence_reference when done with the fence.
+    */
+   void (*batch_flush)(struct brw_winsys *sws,
+                       struct pipe_fence_handle **fence);
+
+
+   /* A version of buffer_subdata that includes information for the
+    * simulator:
+    */
+   void (*buffer_subdata_typed)(struct brw_winsys *sws, 
+				struct pipe_buffer *buf,
+				unsigned long offset, 
+				unsigned long size, 
+				const void *data,
+				unsigned data_type);
+   
+
+   /* A cheat so we don't have to think about relocations in a couple
+    * of places yet:
+    */
+   unsigned (*get_buffer_offset)( struct brw_winsys *sws,
+				  struct pipe_buffer *buf,
+				  unsigned flags );
+
+};
+
+#define BRW_BUFFER_ACCESS_WRITE   0x1
+#define BRW_BUFFER_ACCESS_READ    0x2
+
+#define BRW_BUFFER_USAGE_LIT_VERTEX  (PIPE_BUFFER_USAGE_CUSTOM << 0)
+
+
+struct pipe_context *brw_create(struct pipe_screen *,
+                                struct brw_winsys *,
+                                unsigned pci_id);
+
+static inline boolean brw_batchbuffer_data(struct brw_winsys *winsys,
+                                           const void *data,
+                                           unsigned bytes)
+{
+   static const unsigned incr = sizeof(unsigned);
+   uint i;
+   const unsigned *udata = (const unsigned*)(data);
+   unsigned size = bytes/incr;
+
+   winsys->batch_start(winsys, size, 0);
+   for (i = 0; i < size; ++i) {
+      winsys->batch_dword(winsys, udata[i]);
+   }
+   winsys->batch_end(winsys);
+
+   return (i == size);
+}
+#endif