From f2616e56de8a48360cae8f269727b58490555f4d Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Thu, 18 Nov 2010 11:05:32 -0800 Subject: glsl: Add ir_unop_sin_reduced and ir_unop_cos_reduced The operate just like ir_unop_sin and ir_unop_cos except that they expect their inputs to be limited to the range [-pi, pi]. Several GPUs require this limited range for their sine and cosine instructions, so having these as operations (along with a to-be-written lowering pass) helps this architectures. These new operations also matche the semantics of the GL_ARB_fragment_program SCS instruction. Having these as operations helps in generating GLSL IR directly from assembly fragment programs. --- src/glsl/ir.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/glsl/ir.h') diff --git a/src/glsl/ir.h b/src/glsl/ir.h index 3ea7301f47..2b94e63cc2 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -729,6 +729,8 @@ enum ir_expression_operation { /*@{*/ ir_unop_sin, ir_unop_cos, + ir_unop_sin_reduced, /**< Reduced range sin. [-pi, pi] */ + ir_unop_cos_reduced, /**< Reduced range cos. [-pi, pi] */ /*@}*/ /** -- cgit v1.2.3