From 51c0c71811508b6658e0d5dcff8426b618322a73 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Sat, 28 Apr 2001 08:39:17 +0000
Subject: Support for floating point color representation in tnl module.

---
 src/mesa/swrast_setup/ss_triangle.c |  6 +++---
 src/mesa/swrast_setup/ss_tritmp.h   | 10 +++++-----
 src/mesa/swrast_setup/ss_vbtmp.h    | 18 +++++++++++-------
 3 files changed, 19 insertions(+), 15 deletions(-)

(limited to 'src/mesa/swrast_setup')

diff --git a/src/mesa/swrast_setup/ss_triangle.c b/src/mesa/swrast_setup/ss_triangle.c
index 958eae3a29..a12429e26d 100644
--- a/src/mesa/swrast_setup/ss_triangle.c
+++ b/src/mesa/swrast_setup/ss_triangle.c
@@ -1,4 +1,4 @@
-/* $Id: ss_triangle.c,v 1.12 2001/03/12 00:48:43 gareth Exp $ */
+/* $Id: ss_triangle.c,v 1.13 2001/04/28 08:39:18 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -141,8 +141,8 @@ static void _swsetup_render_point_tri( GLcontext *ctx,
    }
 }
 
-#define SS_COLOR(a,b) COPY_CHAN4(a,b)
-#define SS_SPEC(a,b) COPY_CHAN4(a,b)
+#define SS_COLOR(a,b) UNCLAMPED_FLOAT_TO_RGBA_CHAN(a,b)
+#define SS_SPEC(a,b) UNCLAMPED_FLOAT_TO_RGB_CHAN(a,b)
 #define SS_IND(a,b) (a = b)
 
 #define IND (0)
diff --git a/src/mesa/swrast_setup/ss_tritmp.h b/src/mesa/swrast_setup/ss_tritmp.h
index 0c81fb891f..0db792ba2b 100644
--- a/src/mesa/swrast_setup/ss_tritmp.h
+++ b/src/mesa/swrast_setup/ss_tritmp.h
@@ -1,4 +1,4 @@
-/* $Id: ss_tritmp.h,v 1.11 2001/03/21 17:11:32 pesco Exp $ */
+/* $Id: ss_tritmp.h,v 1.12 2001/04/28 08:39:18 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -61,8 +61,8 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 )
 	 if (facing == 1) {
 	    if (IND & SS_TWOSIDE_BIT) {
 	       if (IND & SS_RGBA_BIT) {
-		  GLchan (*vbcolor)[4] = VB->ColorPtr[1]->data;
-		  GLchan (*vbspec)[4] = VB->SecondaryColorPtr[1]->data;
+		  GLfloat (*vbcolor)[4] = (GLfloat (*)[4])VB->ColorPtr[1]->Ptr;
+		  GLfloat (*vbspec)[4] = (GLfloat (*)[4])VB->SecondaryColorPtr[1]->Ptr;
 		  SS_COLOR(v[0]->color, vbcolor[e0]);
 		  SS_COLOR(v[1]->color, vbcolor[e1]);
 		  SS_COLOR(v[2]->color, vbcolor[e2]);
@@ -134,8 +134,8 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 )
    if (IND & SS_TWOSIDE_BIT) {
       if (facing == 1) {
 	 if (IND & SS_RGBA_BIT) {
-	    GLchan (*vbcolor)[4] = VB->ColorPtr[0]->data;
-	    GLchan (*vbspec)[4] = VB->SecondaryColorPtr[0]->data;
+	    GLfloat (*vbcolor)[4] = (GLfloat (*)[4])VB->ColorPtr[0]->Ptr;
+	    GLfloat (*vbspec)[4] = (GLfloat (*)[4])VB->SecondaryColorPtr[0]->Ptr;
 	    SS_COLOR(v[0]->color, vbcolor[e0]);
 	    SS_COLOR(v[1]->color, vbcolor[e1]);
 	    SS_COLOR(v[2]->color, vbcolor[e2]);
diff --git a/src/mesa/swrast_setup/ss_vbtmp.h b/src/mesa/swrast_setup/ss_vbtmp.h
index 0a7c1ded54..7e924b5a7e 100644
--- a/src/mesa/swrast_setup/ss_vbtmp.h
+++ b/src/mesa/swrast_setup/ss_vbtmp.h
@@ -1,4 +1,4 @@
-/* $Id: ss_vbtmp.h,v 1.13 2001/03/29 16:50:33 brianp Exp $ */
+/* $Id: ss_vbtmp.h,v 1.14 2001/04/28 08:39:18 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -35,8 +35,8 @@ static void TAG(rs)(GLcontext *ctx, GLuint start, GLuint end, GLuint newinputs )
    SWvertex *v;
    GLfloat (*proj)[4];		/* projected clip coordinates */
    GLfloat (*tc[MAX_TEXTURE_UNITS])[4];
-   GLchan (*color)[4];
-   GLchan (*spec)[4];
+   GLfloat (*color)[4];
+   GLfloat (*spec)[4];
    GLuint *index;
    GLfloat *fog;
    GLfloat *pointSize;
@@ -57,6 +57,10 @@ static void TAG(rs)(GLcontext *ctx, GLuint start, GLuint end, GLuint newinputs )
    }
 
    /* TODO:  Get import_client_data to pad vectors out to 4 cleanly.
+    *
+    * NOTE: This has the effect of converting any remaining ubyte
+    *       colors to floats...  As they're already there 90% of the
+    *       time, this isn't a bad thing.  
     */
    if (VB->importable_data)
       VB->import_data( ctx, VB->importable_data & newinputs,
@@ -92,9 +96,9 @@ static void TAG(rs)(GLcontext *ctx, GLuint start, GLuint end, GLuint newinputs )
    if (IND & FOG)
       fog = VB->FogCoordPtr->data;
    if (IND & COLOR)
-      color = VB->ColorPtr[0]->data;
+      color = (GLfloat (*)[4])VB->ColorPtr[0]->Ptr;
    if (IND & SPEC)
-      spec = VB->SecondaryColorPtr[0]->data;
+      spec = (GLfloat (*)[4])VB->SecondaryColorPtr[0]->Ptr;
    if (IND & INDEX)
       index = VB->IndexPtr[0]->data;
    if (IND & POINT)
@@ -120,10 +124,10 @@ static void TAG(rs)(GLcontext *ctx, GLuint start, GLuint end, GLuint newinputs )
 	 }
 
 	 if (IND & COLOR)
-	    COPY_CHAN4(v->color, color[i]);
+	    UNCLAMPED_FLOAT_TO_RGBA_CHAN(v->color, color[i]);
 
 	 if (IND & SPEC)
-	    COPY_CHAN4(v->specular, spec[i]);
+	    UNCLAMPED_FLOAT_TO_RGBA_CHAN(v->specular, spec[i]);
 
 	 if (IND & FOG)
 	    v->fog = fog[i];
-- 
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