From: Keith Whitwell <keith@tungstengraphics.com>
Date: Tue, 1 Apr 2008 13:14:46 +0000 (+0100)
Subject: draw: associate rhw divide with clipping not viewport flag
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=52f40dcc468039fc9cca45a4de20a5aa11228b67;p=mesa.git

draw: associate rhw divide with clipping not viewport flag
---

diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c
index c8ed17c00a2..c6e503686a6 100644
--- a/src/gallium/auxiliary/draw/draw_vs_exec.c
+++ b/src/gallium/auxiliary/draw/draw_vs_exec.c
@@ -143,6 +143,12 @@ vs_exec_run( struct draw_vertex_shader *shader,
 
       if (!draw->rasterizer->bypass_clipping) {
          vOut[j]->clipmask = compute_clipmask(vOut[j]->clip, draw->plane, draw->nr_planes);
+
+         /* divide by w */
+         w = 1.0f / w;
+         x *= w;
+         y *= w;
+         z *= w;         
       }
       else {
          vOut[j]->clipmask = 0;
@@ -150,12 +156,6 @@ vs_exec_run( struct draw_vertex_shader *shader,
       vOut[j]->edgeflag = 1;
 
       if (!draw->identity_viewport) {
-         /* divide by w */
-         w = 1.0f / w;
-         x *= w;
-         y *= w;
-         z *= w;
-         
          /* Viewport mapping */
          vOut[j]->data[0][0] = x * scale[0] + trans[0];
          vOut[j]->data[0][1] = y * scale[1] + trans[1];
diff --git a/src/gallium/auxiliary/draw/draw_vs_llvm.c b/src/gallium/auxiliary/draw/draw_vs_llvm.c
index 8aa8a617bbb..c8268317efa 100644
--- a/src/gallium/auxiliary/draw/draw_vs_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_vs_llvm.c
@@ -153,6 +153,12 @@ vs_llvm_run( struct draw_vertex_shader *base,
 
       if (!draw->rasterizer->bypass_clipping) {
          vOut[j]->clipmask = compute_clipmask(vOut[j]->clip, draw->plane, draw->nr_planes);
+
+         /* divide by w */
+         w = 1.0f / w;
+         x *= w;
+         y *= w;
+         z *= w;         
       }
       else {
          vOut[j]->clipmask = 0;
@@ -160,12 +166,6 @@ vs_llvm_run( struct draw_vertex_shader *base,
       vOut[j]->edgeflag = 1;
          
       if (!draw->identity_viewport) {
-         /* divide by w */
-         w = 1.0f / w;
-         x *= w;
-         y *= w;
-         z *= w;
-         
          /* Viewport mapping */
          vOut[j]->data[0][0] = x * scale[0] + trans[0];
          vOut[j]->data[0][1] = y * scale[1] + trans[1];
diff --git a/src/gallium/auxiliary/draw/draw_vs_sse.c b/src/gallium/auxiliary/draw/draw_vs_sse.c
index 701137f9087..f40d65df08f 100644
--- a/src/gallium/auxiliary/draw/draw_vs_sse.c
+++ b/src/gallium/auxiliary/draw/draw_vs_sse.c
@@ -168,6 +168,12 @@ vs_sse_run( struct draw_vertex_shader *base,
 
       if (!draw->rasterizer->bypass_clipping) {
          vOut[j]->clipmask = compute_clipmask(vOut[j]->clip, draw->plane, draw->nr_planes);
+
+         /* divide by w */
+         w = 1.0f / w;
+         x *= w;
+         y *= w;
+         z *= w;
       }
       else {
          vOut[j]->clipmask = 0;
@@ -175,12 +181,6 @@ vs_sse_run( struct draw_vertex_shader *base,
       vOut[j]->edgeflag = 1;
 
       if (!draw->identity_viewport) {
-         /* divide by w */
-         w = 1.0f / w;
-         x *= w;
-         y *= w;
-         z *= w;
-         
          /* Viewport mapping */
          vOut[j]->data[0][0] = x * scale[0] + trans[0];
          vOut[j]->data[0][1] = y * scale[1] + trans[1];