mesa: Add support for OPTION ATI_draw_buffers to ARB_fp.

Tested by piglit ati_draw_buffers-arbfp.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

diff --git a/src/mesa/program/program_parse_extra.c b/src/mesa/program/program_parse_extra.c
index ae98b782b70523cb237aea3b05ec85d62759f3bf..4d928483e1602f7a430b4e798dfb0f8e142a3c37 100644 (file)
--- a/src/mesa/program/program_parse_extra.c
+++ b/src/mesa/program/program_parse_extra.c
@@ -229,6 +229,16 @@ _mesa_ARBfp_parse_option(struct asm_parser_state *state, const char *option)
             }
          }
       }
+   } else if (strncmp(option, "ATI_", 4) == 0) {
+      option += 4;
+
+      if (strcmp(option, "draw_buffers") == 0) {
+        /* Don't need to check extension availability because all Mesa-based
+         * drivers support GL_ATI_draw_buffers.
+         */
+        state->option.DrawBuffers = 1;
+        return 1;
+      }
    } else if (strncmp(option, "NV_fragment_program", 19) == 0) {
       option += 19;