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, 220 insertions, 0 deletions

diff --git a/src/gallium/drivers/i915simple/i915_prim_emit.c b/src/gallium/drivers/i915simple/i915_prim_emit.c
new file mode 100644
index 00000000000..8f1f58b2dd1
--- /dev/null
+++ b/src/gallium/drivers/i915simple/i915_prim_emit.c
@@ -0,0 +1,220 @@
+/**************************************************************************
+ * 
+ * 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.
+ * 
+ **************************************************************************/
+
+
+#include "draw/draw_pipe.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "util/u_pack_color.h"
+
+#include "i915_context.h"
+#include "i915_winsys.h"
+#include "i915_reg.h"
+#include "i915_state.h"
+#include "i915_batch.h"
+
+
+
+/**
+ * Primitive emit to hardware.  No support for vertex buffers or any
+ * nice fast paths.
+ */
+struct setup_stage {
+   struct draw_stage stage; /**< This must be first (base class) */
+
+   struct i915_context *i915;   
+};
+
+
+
+/**
+ * Basically a cast wrapper.
+ */
+static INLINE struct setup_stage *setup_stage( struct draw_stage *stage )
+{
+   return (struct setup_stage *)stage;
+}
+
+
+/**
+ * Extract the needed fields from vertex_header and emit i915 dwords.
+ * Recall that the vertices are constructed by the 'draw' module and
+ * have a couple of slots at the beginning (1-dword header, 4-dword
+ * clip pos) that we ignore here.
+ */
+static INLINE void
+emit_hw_vertex( struct i915_context *i915,
+                const struct vertex_header *vertex)
+{
+   const struct vertex_info *vinfo = &i915->current.vertex_info;
+   uint i;
+   uint count = 0;  /* for debug/sanity */
+
+   assert(!i915->dirty);
+
+   for (i = 0; i < vinfo->num_attribs; i++) {
+      const uint j = vinfo->attrib[i].src_index;
+      const float *attrib = vertex->data[j];
+      switch (vinfo->attrib[i].emit) {
+      case EMIT_1F:
+         OUT_BATCH( fui(attrib[0]) );
+         count++;
+         break;
+      case EMIT_2F:
+         OUT_BATCH( fui(attrib[0]) );
+         OUT_BATCH( fui(attrib[1]) );
+         count += 2;
+         break;
+      case EMIT_3F:
+         OUT_BATCH( fui(attrib[0]) );
+         OUT_BATCH( fui(attrib[1]) );
+         OUT_BATCH( fui(attrib[2]) );
+         count += 3;
+         break;
+      case EMIT_4F:
+         OUT_BATCH( fui(attrib[0]) );
+         OUT_BATCH( fui(attrib[1]) );
+         OUT_BATCH( fui(attrib[2]) );
+         OUT_BATCH( fui(attrib[3]) );
+         count += 4;
+         break;
+      case EMIT_4UB:
+         OUT_BATCH( pack_ub4(float_to_ubyte( attrib[2] ),
+                             float_to_ubyte( attrib[1] ),
+                             float_to_ubyte( attrib[0] ),
+                             float_to_ubyte( attrib[3] )) );
+         count += 1;
+         break;
+      default:
+         assert(0);
+      }
+   }
+   assert(count == vinfo->size);
+}
+
+
+
+static INLINE void 
+emit_prim( struct draw_stage *stage, 
+	   struct prim_header *prim,
+	   unsigned hwprim,
+	   unsigned nr )
+{
+   struct i915_context *i915 = setup_stage(stage)->i915;
+   unsigned vertex_size;
+   unsigned i;
+
+   if (i915->dirty)
+      i915_update_derived( i915 );
+
+   if (i915->hardware_dirty)
+      i915_emit_hardware_state( i915 );
+
+   /* need to do this after validation! */
+   vertex_size = i915->current.vertex_info.size * 4; /* in bytes */
+   assert(vertex_size >= 12); /* never smaller than 12 bytes */
+
+   if (!BEGIN_BATCH( 1 + nr * vertex_size / 4, 0 )) {
+      FLUSH_BATCH(NULL);
+
+      /* Make sure state is re-emitted after a flush: 
+       */
+      i915_update_derived( i915 );
+      i915_emit_hardware_state( i915 );
+
+      if (!BEGIN_BATCH( 1 + nr * vertex_size / 4, 0 )) {
+	 assert(0);
+	 return;
+      }
+   }
+
+   /* Emit each triangle as a single primitive.  I told you this was
+    * simple.
+    */
+   OUT_BATCH(_3DPRIMITIVE | 
+	     hwprim |
+	     ((4 + vertex_size * nr)/4 - 2));
+
+   for (i = 0; i < nr; i++)
+      emit_hw_vertex(i915, prim->v[i]);
+}
+
+
+static void 
+setup_tri( struct draw_stage *stage, struct prim_header *prim )
+{
+   emit_prim( stage, prim, PRIM3D_TRILIST, 3 );
+}
+
+
+static void
+setup_line(struct draw_stage *stage, struct prim_header *prim)
+{
+   emit_prim( stage, prim, PRIM3D_LINELIST, 2 );
+}
+
+
+static void
+setup_point(struct draw_stage *stage, struct prim_header *prim)
+{
+   emit_prim( stage, prim, PRIM3D_POINTLIST, 1 );
+}
+
+
+static void setup_flush( struct draw_stage *stage, unsigned flags )
+{
+}
+
+static void reset_stipple_counter( struct draw_stage *stage )
+{
+}
+
+static void render_destroy( struct draw_stage *stage )
+{
+   FREE( stage );
+}
+
+
+/**
+ * Create a new primitive setup/render stage.  This gets plugged into
+ * the 'draw' module's pipeline.
+ */
+struct draw_stage *i915_draw_render_stage( struct i915_context *i915 )
+{
+   struct setup_stage *setup = CALLOC_STRUCT(setup_stage);
+
+   setup->i915 = i915;
+   setup->stage.draw = i915->draw;
+   setup->stage.point = setup_point;
+   setup->stage.line = setup_line;
+   setup->stage.tri = setup_tri;
+   setup->stage.flush = setup_flush;
+   setup->stage.reset_stipple_counter = reset_stipple_counter;
+   setup->stage.destroy = render_destroy;
+
+   return &setup->stage;
+}