mesa: add basic support for 2D register arrays to mesa

just like in Gallium it's a basic functionality needed by a lot
of modern graphcis extensions

1 files changed, 6 insertions, 0 deletions

diff --git a/src/mesa/program/prog_instruction.h b/src/mesa/program/prog_instruction.h
index bc980c6a7f..cb5beb9b00 100644
--- a/src/mesa/program/prog_instruction.h
+++ b/src/mesa/program/prog_instruction.h
@@ -271,6 +271,12 @@ struct prog_src_register
     * instruction which allows per-component negation.
     */
    GLuint Negate:4;
+
+   GLuint HasIndex2D:1;
+   GLuint RelAddr2D:1;
+   GLint Index2D:(INST_INDEX_BITS+1); /**< Extra bit here for sign bit.
+                                       * May be negative for relative
+                                       * addressing. */
 };