mesa: added _mesa_print_swizzle() debugging helper

2 files changed, 16 insertions, 0 deletions

diff --git a/src/mesa/shader/prog_print.c b/src/mesa/shader/prog_print.c
index 2c5e03acc2..11f82c1fc1 100644
--- a/src/mesa/shader/prog_print.c
+++ b/src/mesa/shader/prog_print.c
@@ -356,6 +356,19 @@ _mesa_swizzle_string(GLuint swizzle, GLuint negateBase, GLboolean extended)
 }
 
 
+void
+_mesa_print_swizzle(GLuint swizzle)
+{
+   if (swizzle == SWIZZLE_XYZW) {
+      _mesa_printf(".xyzw\n");
+   }
+   else {
+      char *s = _mesa_swizzle_string(swizzle, 0, 0);
+      _mesa_printf("%s\n", s);
+   }
+}
+
+
 static const char *
 writemask_string(GLuint writeMask)
 {
diff --git a/src/mesa/shader/prog_print.h b/src/mesa/shader/prog_print.h
index 36c47e0dff..3cdb1b195e 100644
--- a/src/mesa/shader/prog_print.h
+++ b/src/mesa/shader/prog_print.h
@@ -44,6 +44,9 @@ extern const char *
 _mesa_swizzle_string(GLuint swizzle, GLuint negateBase, GLboolean extended);
 
 extern void
+_mesa_print_swizzle(GLuint swizzle);
+
+extern void
 _mesa_print_alu_instruction(const struct prog_instruction *inst,
                             const char *opcode_string, GLuint numRegs);