updated comments

diff --git a/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c b/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c
index 2a2a1a0..189c7f3 100644 (file)
--- a/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c
+++ b/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c
@@ -59,22 +59,13 @@ map_register_file_index(
 \r
    switch( file ) {\r
    case TGSI_FILE_INPUT:\r
-      /*\r
-       * The fragment/vertex program input indexes (FRAG/VERT_ATTRIB_x) get\r
-       * mapped to a packed sequence of integers.\r
-       * If a program uses one input attribute, the mapped index will be 1.\r
-       * If a program uses two input attribs, the mapped indexes will be 1,2.\r
-       * If a program uses 3 input attribs, the mapped indexes will be 1,2,3.\r
-       * etc.\r
-       */\r
+      /* inputs are mapped according to the user-defined map */\r
       return inputMapping[index];\r
 \r
    case TGSI_FILE_OUTPUT:\r
-      /*\r
-      assert( usage_bitmask == 0x0 );\r
-      */\r
       if( processor == TGSI_PROCESSOR_FRAGMENT ) {\r
-         /* depth result  -> index 0\r
+         /* fragment program outputs are hard-coded:\r
+          * depth result  -> index 0\r
           * color results -> index 1, 2, ...\r
           */\r
         if( index == FRAG_RESULT_DEPR ) {\r
@@ -86,8 +77,7 @@ map_register_file_index(
          }\r
       }\r
       else {\r
-         /* vertex output slots are tightly packed, find mapped pos */\r
-         /* mapped_index = VERT_RESULT_x */\r
+         /* vertex outputs are mapped according to the user-defined map */\r
          mapped_index = outputMapping[index];\r
       }\r
       break;\r