i965/fs: Clean up emit_fb_writes

This splits emit_fb_writes into two functions: emit_fb_writes and
emit_single_fb_write.  This reduces the amount of duplicated code in
emit_fb_writes and makes the register number fiddling less arcane.

Signed-off-by: Jason Ekstrand <[email protected]>
Reviewed-by: Matt Turner <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index ba40801d488..831f8ae85db 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -428,8 +428,10 @@ public:
                     const struct prog_instruction *fpi,
                     fs_reg dst, fs_reg src0, fs_reg src1, fs_reg one);
 
-   void emit_color_write(int target, int index, int first_color_mrf);
+   void emit_color_write(fs_reg color, int index, int first_color_mrf);
    void emit_alpha_test();
+   fs_inst *emit_single_fb_write(fs_reg color1, fs_reg color2,
+                                 fs_reg src0_alpha, unsigned components);
    void emit_fb_writes();
 
    void emit_shader_time_begin();