Mesa (master): tgsi: add info fields for fragcoord origin, center, etc

[Brian Paul]

Module: Mesa
Branch: master
Commit: 2253906da3c506bb5378a8f2fa203ed0c9021171
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2253906da3c506bb5378a8f2fa203ed0c9021171

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Jul 21 09:55:22 2011 -0600

tgsi: add info fields for fragcoord origin, center, etc

---

 src/gallium/auxiliary/tgsi/tgsi_scan.c |   38 +++++++++++++++++++++++--------
 src/gallium/auxiliary/tgsi/tgsi_scan.h |    3 ++
 2 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index 83c6ac7..f165f82 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -200,19 +200,20 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
             info->file_max[file] = MAX2(info->file_max[file], (int)reg);
          }
          break;
+
       case TGSI_TOKEN_TYPE_PROPERTY:
-      {
-         const struct tgsi_full_property *fullprop
-            = &parse.FullToken.FullProperty;
+         {
+            const struct tgsi_full_property *fullprop
+               = &parse.FullToken.FullProperty;
 
-         info->properties[info->num_properties].name =
-            fullprop->Property.PropertyName;
-         memcpy(info->properties[info->num_properties].data,
-                fullprop->u, 8 * sizeof(unsigned));;
+            info->properties[info->num_properties].name =
+               fullprop->Property.PropertyName;
+            memcpy(info->properties[info->num_properties].data,
+                   fullprop->u, 8 * sizeof(unsigned));;
 
-         ++info->num_properties;
-      }
-      break;
+            ++info->num_properties;
+         }
+         break;
 
       default:
          assert( 0 );
@@ -222,6 +223,23 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
    info->uses_kill = (info->opcode_count[TGSI_OPCODE_KIL] ||
                       info->opcode_count[TGSI_OPCODE_KILP]);
 
+   /* extract simple properties */
+   for (i = 0; i < info->num_properties; ++i) {
+      switch (info->properties[i].name) {
+      case TGSI_PROPERTY_FS_COORD_ORIGIN:
+         info->origin_lower_left = info->properties[i].data[0];
+         break;
+      case TGSI_PROPERTY_FS_COORD_PIXEL_CENTER:
+         info->pixel_center_integer = info->properties[i].data[0];
+         break;
+      case TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS:
+         info->color0_writes_all_cbufs = info->properties[i].data[0];
+         break;
+      default:
+         ;
+      }
+   }
+
    tgsi_parse_free (&parse);
 }
 
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h
index 53ab3d5..d6e593b 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h
@@ -68,6 +68,9 @@ struct tgsi_shader_info
    boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
    boolean uses_kill;  /**< KIL or KILP instruction used? */
    boolean uses_instanceid;
+   boolean origin_lower_left;
+   boolean pixel_center_integer;
+   boolean color0_writes_all_cbufs;
 
    /**
     * Bitmask indicating which register files are accessed with