driconf: add force_glsl_abs_sqrt option

This will allow to force computing the absolute value for sqrt()
and inversesqrt() in order to follow D3D9 behaviour for buggy
apps that rely on it.

Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 7e970843d5c..be78b96810d 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3556,6 +3556,12 @@ struct gl_constants
    GLboolean AllowHigherCompatVersion;
 
    /**
+    * Force computing the absolute value for sqrt() and inversesqrt() to follow
+    * D3D9 when apps rely on this behaviour.
+    */
+   GLboolean ForceGLSLAbsSqrt;
+
+   /**
     * Force uninitialized variables to default to zero.
     */
    GLboolean GLSLZeroInit;