Mesa (master): i965/fs: Remove direct fs_visitor gl_fragment_program dependence

[Jordan Justen]

Module: Mesa
Branch: master
Commit: dc0bd799cabdd974b05bd217304944392169fb50
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=dc0bd799cabdd974b05bd217304944392169fb50

Author: Jordan Justen <jordan.l.justen at intel.com>
Date:   Fri Aug 29 12:50:46 2014 -0700

i965/fs: Remove direct fs_visitor gl_fragment_program dependence

Instead we cast backend_visitor::prog for fragment shader specific code paths.

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_fs.h           |    1 -
 src/mesa/drivers/dri/i965/brw_fs_fp.cpp      |    8 ++++++--
 src/mesa/drivers/dri/i965/brw_fs_visitor.cpp |    1 -
 src/mesa/drivers/dri/i965/brw_wm_iz.cpp      |    2 ++
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 502e6c7..d40a2e3 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -469,7 +469,6 @@ public:
 
    void visit_atomic_counter_intrinsic(ir_call *ir);
 
-   struct gl_fragment_program *fp;
    const struct brw_wm_prog_key *const key;
    struct brw_wm_prog_data *prog_data;
    unsigned int sanity_param_count;
diff --git a/src/mesa/drivers/dri/i965/brw_fs_fp.cpp b/src/mesa/drivers/dri/i965/brw_fs_fp.cpp
index 4db3f16..526c817 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_fp.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_fp.cpp
@@ -602,8 +602,12 @@ fs_visitor::setup_fp_regs()
 
          switch (i) {
          case VARYING_SLOT_POS:
-            ir->data.pixel_center_integer = fp->PixelCenterInteger;
-            ir->data.origin_upper_left = fp->OriginUpperLeft;
+            {
+               assert(stage == MESA_SHADER_FRAGMENT);
+               gl_fragment_program *fp = (gl_fragment_program*) prog;
+               ir->data.pixel_center_integer = fp->PixelCenterInteger;
+               ir->data.origin_upper_left = fp->OriginUpperLeft;
+            }
             fp_input_regs[i] = *emit_fragcoord_interpolation(ir);
             break;
          case VARYING_SLOT_FACE:
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index 7ec8fd8..2a097f6 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -3267,7 +3267,6 @@ fs_visitor::fs_visitor(struct brw_context *brw,
      key(key), prog_data(prog_data),
      dispatch_width(dispatch_width)
 {
-   this->fp = fp;
    this->mem_ctx = mem_ctx;
    init();
 }
diff --git a/src/mesa/drivers/dri/i965/brw_wm_iz.cpp b/src/mesa/drivers/dri/i965/brw_wm_iz.cpp
index 0a639f1..47823a7 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_iz.cpp
+++ b/src/mesa/drivers/dri/i965/brw_wm_iz.cpp
@@ -125,6 +125,8 @@ void fs_visitor::setup_payload_gen4()
    GLuint reg = 2;
    bool kill_stats_promoted_workaround = false;
    int lookup = key->iz_lookup;
+   assert(stage == MESA_SHADER_FRAGMENT);
+   gl_fragment_program *fp = (gl_fragment_program*) prog;
    bool uses_depth =
       (fp->Base.InputsRead & (1 << VARYING_SLOT_POS)) != 0;