Mesa (master): ffvertex: don't touch tex coords if coord replace is enabled .

[Dave Airlie]

Module: Mesa
Branch: master
Commit: 911fa4a4a16e7cb099107ecf79d9ed8f63139236
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=911fa4a4a16e7cb099107ecf79d9ed8f63139236

Author: Dave Airlie <airlied at redhat.com>
Date:   Mon Apr 12 15:40:29 2010 +1000

ffvertex: don't touch tex coords if coord replace is enabled.

The fixed function vertex program shouldn't need to deal or touch tex coords
if stuffing is enabled.

Though I'm not 100% this won't break assumption made elsewhere it seems like
the correct thing to do, and makes r300g point sprites a lot easier to implement.

draw: fix point-sprite when vertex program is used.

This commit regressed draw, so fix it as well to help bisection.

Signed-off-by: Dave Airlie <airlied at redhat.com>

---

 src/gallium/auxiliary/draw/draw_pipe_wide_point.c |    5 ++++-
 src/mesa/main/ffvertex_prog.c                     |    8 ++++++++
 2 files changed, 12 insertions(+), 1 deletions(-)

diff --git a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
index fdabce7..6864b40 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
@@ -113,7 +113,10 @@ static void set_texcoords(const struct widepoint_stage *wide,
       /* put gl_PointCoord into the extra vertex slot */
       uint slot = wide->stage.draw->extra_shader_outputs.slot;
       v->data[slot][0] = tc[0];
-      v->data[slot][1] = tc[1];
+      if (wide->texcoord_mode == PIPE_SPRITE_COORD_LOWER_LEFT)
+         v->data[slot][1] = 1.0f - tc[1];
+      else
+         v->data[slot][1] = tc[1];
       v->data[slot][2] = 0.0F;
       v->data[slot][3] = 1.0F;
    }
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index ba94a38..70ac47f 100644
--- a/src/mesa/main/ffvertex_prog.c
+++ b/src/mesa/main/ffvertex_prog.c
@@ -75,6 +75,7 @@ struct state_key {
       unsigned light_attenuated:1;
       unsigned texunit_really_enabled:1;
       unsigned texmat_enabled:1;
+      unsigned coord_replace:1;
       unsigned texgen_enabled:4;
       unsigned texgen_mode0:4;
       unsigned texgen_mode1:4;
@@ -225,6 +226,10 @@ static void make_state_key( GLcontext *ctx, struct state_key *key )
       if (texUnit->_ReallyEnabled)
 	 key->unit[i].texunit_really_enabled = 1;
 
+      if (ctx->Point.PointSprite)
+	 if (ctx->Point.CoordReplace[i])
+	    key->unit[i].coord_replace = 1;
+
       if (ctx->Texture._TexMatEnabled & ENABLE_TEXMAT(i))
 	 key->unit[i].texmat_enabled = 1;
 
@@ -1385,6 +1390,9 @@ static void build_texture_transform( struct tnl_program *p )
       if (!(p->state->fragprog_inputs_read & FRAG_BIT_TEX(i)))
 	 continue;
 
+      if (p->state->unit[i].coord_replace)
+  	 continue;
+
       if (p->state->unit[i].texgen_enabled ||
 	  p->state->unit[i].texmat_enabled) {