1 files changed, 145 insertions, 0 deletions
diff --git a/src/mesa/pipe/i915simple/i915_state_vertex.c b/src/mesa/pipe/i915simple/i915_state_vertex.c
new file mode 100644
index 0000000000..053e39deb2
--- /dev/null
+++ b/src/mesa/pipe/i915simple/i915_state_vertex.c
@@ -0,0 +1,145 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 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 "main/glheader.h"
+#include "main/macros.h"
+#include "main/enums.h"
+
+#include "vf/vf.h"
+#include "pipe/draw/draw_context.h"
+#include "i915_context.h"
+#include "i915_state.h"
+
+
+
+
+/***********************************************************************
+ * 
+ */
+
+#define SZ_TO_HW(sz)  ((sz-2)&0x3)
+#define EMIT_SZ(sz)   (EMIT_1F + (sz) - 1)
+#define EMIT_ATTR( ATTR, STYLE, S4, SZ )			\
+do {								\
+   i915->vertex_attrs[i915->vertex_attr_count].attrib = (ATTR);	\
+   i915->vertex_attrs[i915->vertex_attr_count].format = (STYLE);	\
+   i915->vertex_attr_count++;					\
+   s4 |= S4;							\
+   offset += (SZ);						\
+} while (0)
+
+#define EMIT_PAD( N )						\
+do {								\
+   i915->vertex_attrs[i915->vertex_attr_count].attrib = 0;		\
+   i915->vertex_attrs[i915->vertex_attr_count].format = EMIT_PAD;	\
+   i915->vertex_attrs[i915->vertex_attr_count].offset = (N);		\
+   i915->vertex_attr_count++;					\
+   offset += (N);						\
+} while (0)
+
+
+
+/**
+ * Determine which post-transform / pre-rasterization vertex attributes
+ * we need.
+ * Derived from:  fs, setup states.
+ */
+static void calculate_vertex_layout( struct i915_context *i915 )
+{
+   const GLbitfield inputsRead = i915->fs.inputs_read;
+   GLuint slot_to_vf_attr[VF_ATTRIB_MAX];
+   GLuint nr_attrs = 0;
+   GLuint i;
+
+
+
+   memset(slot_to_vf_attr, 0, sizeof(slot_to_vf_attr));
+
+   EMIT_ATTR(VF_ATTRIB_POS, FRAG_ATTRIB_WPOS, INTERP_LINEAR);
+   EMIT_ATTR(VF_ATTRIB_COLOR0, FRAG_ATTRIB_COL0, INTERP_LINEAR);
+
+   i915->hw_vertex_size = i915->nr_attrs;
+
+   /* Additional attributes required for setup: Just twosided
+    * lighting.  Edgeflag is dealt with specially by setting bits in
+    * the vertex header.
+    */
+   if (i915->setup.light_twoside) {
+      EMIT_ATTR(VF_ATTRIB_BFC0, FRAG_ATTRIB_MAX, 0); /* XXX: mark as discarded after setup */
+   }
+
+   /* If the attributes have changed, tell the draw module (which in turn
+    * tells the vf module) about the new vertex layout.
+    */
+   draw_set_vertex_attributes( i915->draw,
+			       slot_to_vf_attr,
+			       i915->nr_attrs );
+}
+
+
+
+/***********************************************************************
+ * 
+ */
+static inline GLuint attr_size(GLuint sizes, GLuint attr)
+{
+   return ((sizes >> (attr*2)) & 0x3) + 1;
+}
+
+static void i915_calculate_vertex_format( struct intel_context *intel )
+{
+   struct i915_context *i915 = i915_context( &intel->ctx );
+
+   GLuint s2 = S2_TEXCOORD_NONE;
+   GLuint s4 = 0;
+   GLuint offset = 0;
+   GLuint i;
+   i915->vertex_attr_count = 0;
+
+   EMIT_ATTR(VF_ATTRIB_POS, EMIT_4F_VIEWPORT, S4_VFMT_XYZW, 16);
+   EMIT_ATTR(VF_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, S4_VFMT_COLOR, 4);
+
+
+
+   if (s2 != i915->vertex_format.LIS2 || 
+       s4 != i915->vertex_format.LIS4) {
+
+      clip_set_hw_vertex_format( intel->clip, 
+				 i915->vertex_attrs, 
+				 i915->vertex_attr_count,
+				 offset );
+
+      /* Needed?  This does raise the INTEL_NEW_VERTEX_SIZE flag:
+       */
+      intel_vb_set_vertex_size( intel->vb, offset );
+      
+      i915->vertex_format.LIS2 = s2;
+      i915->vertex_format.LIS4 = s4;
+      intel->state.dirty.intel |= I915_NEW_VERTEX_FORMAT;
+   }
+}
+