commit 9c9f8b2d69094fb308de0d6a28bcd60cdf8aedf6
author Kenneth Graunke <kenneth@whitecape.org> Wed Jul 21 17:50:50 2010 -0700
committer Kenneth Graunke <kenneth@whitecape.org> Wed Jul 28 15:46:27 2010 -0700
tree 752d4ab356e2b94c22573d8af84d98140024efb2
parent 5d551daf38e30d6cb863038afe1a8e32c806e6ae

ir_constant_expression: Add support for the "tan" builtin.

src/glsl/ir_constant_expression.cpp

diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index b7ceefc..bcf87e0 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -926,7 +926,9 @@
    } else if (strcmp(callee, "step") == 0) {
       return NULL; /* FINISHME: implement this */
    } else if (strcmp(callee, "tan") == 0) {
-      return NULL; /* FINISHME: implement this */
+      assert(op[0]->type->is_float());
+      for (unsigned c = 0; c < op[0]->type->components(); c++)
+	 data.f[c] = tanf(op[0]->value.f[c]);
    } else if (strcmp(callee, "tanh") == 0) {
       return NULL; /* FINISHME: implement this */
    } else if (strcmp(callee, "transpose") == 0) {