glsl: add texture gather changes

V2 [Chris Forbes]:
   - Add new pattern, fixup parameter reading.

V3: Rebase onto new builtins machinery

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/glsl/ir_reader.cpp b/src/glsl/ir_reader.cpp
index f0318ea210..8038b8f5db 100644
--- a/src/glsl/ir_reader.cpp
+++ b/src/glsl/ir_reader.cpp
@@ -947,6 +947,8 @@ ir_reader::read_texture(s_expression *expr)
       { "txf_ms", s_type, s_sampler, s_coord, s_sample_index };
    s_pattern txs_pattern[] =
       { "txs", s_type, s_sampler, s_lod };
+   s_pattern tg4_pattern[] =
+      { "tg4", s_type, s_sampler, s_coord, s_offset };
    s_pattern other_pattern[] =
       { tag, s_type, s_sampler, s_coord, s_offset, s_proj, s_shadow, s_lod };
 
@@ -960,6 +962,8 @@ ir_reader::read_texture(s_expression *expr)
       op = ir_txf_ms;
    } else if (MATCH(expr, txs_pattern)) {
       op = ir_txs;
+   } else if (MATCH(expr, tg4_pattern)) {
+      op = ir_tg4;
    } else if (MATCH(expr, other_pattern)) {
       op = ir_texture::get_opcode(tag->value());
       if (op == -1)
@@ -1010,7 +1014,7 @@ ir_reader::read_texture(s_expression *expr)
       }
    }
 
-   if (op != ir_txf && op != ir_txf_ms && op != ir_txs && op != ir_lod) {
+   if (op != ir_txf && op != ir_txf_ms && op != ir_txs && op != ir_lod && op != ir_tg4) {
       s_int *proj_as_int = SX_AS_INT(s_proj);
       if (proj_as_int && proj_as_int->value() == 1) {
 	 tex->projector = NULL;