r600: fix rsq from negative input
authorAndre Maasikas <amaasikas@gmail.com>
Wed, 1 Sep 2010 07:38:07 +0000 (10:38 +0300)
committerAndre Maasikas <amaasikas@gmail.com>
Thu, 9 Sep 2010 08:08:10 +0000 (11:08 +0300)
arbfp specifies rsq of abs value

src/mesa/drivers/dri/r600/r700_assembler.c

index 45ff9c06249d93fad3e85e1e9600b6e048bdbc0b..6a9bd85247ebecf34cc294d0e3067f5c92f67f2e 100644 (file)
@@ -3189,6 +3189,9 @@ GLboolean assemble_math_function(r700_AssemblerBase* pAsm, BITS opcode)
         return GL_FALSE;
     }
 
+    if( pAsm->pILInst[pAsm->uiCurInst].Opcode == OPCODE_RSQ )
+        pAsm->S[0].src.abs = 1;
+
     if ( GL_FALSE == next_ins(pAsm) ) 
     {
         return GL_FALSE;