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/mesa/drivers/dri/i965/brw_fs.cpp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/mesa/drivers/dri') diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index ac795e0bda1..164f89eace4 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -778,9 +778,11 @@ fs_visitor::visit(ir_expression *ir) assert(!"not reached: should be handled by ir_explog_to_explog2"); break; case ir_unop_sin: + case ir_unop_sin_reduced: emit_math(FS_OPCODE_SIN, this->result, op[0]); break; case ir_unop_cos: + case ir_unop_cos_reduced: emit_math(FS_OPCODE_COS, this->result, op[0]); break; -- cgit v1.2.3