From 53560311294814ae0daa8457307a2b25077bf4e9 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Tue, 17 Jul 2001 19:39:32 +0000
Subject: Lighting now emits colors as CHAN_TYPE, as it used to.  This will
 require minor adjustments in the dri drivers for twosided lighting to work
 again.

---
 src/mesa/swrast_setup/ss_context.c  | 18 +++++++---
 src/mesa/swrast_setup/ss_context.h  |  8 ++++-
 src/mesa/swrast_setup/ss_triangle.c |  6 ++--
 src/mesa/swrast_setup/ss_tritmp.h   | 10 +++---
 src/mesa/swrast_setup/ss_vb.c       | 70 +++++++++++++++++++++++++++++++------
 src/mesa/swrast_setup/ss_vbtmp.h    | 29 +++++++--------
 6 files changed, 100 insertions(+), 41 deletions(-)

(limited to 'src/mesa/swrast_setup')

diff --git a/src/mesa/swrast_setup/ss_context.c b/src/mesa/swrast_setup/ss_context.c
index 2e92342e07..4b8c003c2e 100644
--- a/src/mesa/swrast_setup/ss_context.c
+++ b/src/mesa/swrast_setup/ss_context.c
@@ -1,4 +1,4 @@
-/* $Id: ss_context.c,v 1.14 2001/07/12 22:09:21 keithw Exp $ */
+/* $Id: ss_context.c,v 1.15 2001/07/17 19:39:32 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -78,11 +78,19 @@ _swsetup_CreateContext( GLcontext *ctx )
 void
 _swsetup_DestroyContext( GLcontext *ctx )
 {
-   if (SWSETUP_CONTEXT(ctx)) {
-      if (SWSETUP_CONTEXT(ctx)->verts)
-	 ALIGN_FREE(SWSETUP_CONTEXT(ctx)->verts);
+   SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+
+   if (swsetup) {
+      if (swsetup->verts)
+	 ALIGN_FREE(swsetup->verts);
+
+      if (swsetup->ChanSecondaryColor.Ptr) 
+	 ALIGN_FREE(swsetup->ChanSecondaryColor.Ptr);
 
-      FREE(SWSETUP_CONTEXT(ctx));
+      if (swsetup->ChanColor.Ptr) 
+	 ALIGN_FREE(swsetup->ChanColor.Ptr);
+
+      FREE(swsetup);
       ctx->swsetup_context = 0;
    }
 }
diff --git a/src/mesa/swrast_setup/ss_context.h b/src/mesa/swrast_setup/ss_context.h
index f477f850cd..ed4da78d62 100644
--- a/src/mesa/swrast_setup/ss_context.h
+++ b/src/mesa/swrast_setup/ss_context.h
@@ -1,4 +1,4 @@
-/* $Id: ss_context.h,v 1.8 2001/07/12 22:09:21 keithw Exp $ */
+/* $Id: ss_context.h,v 1.9 2001/07/17 19:39:32 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -40,6 +40,12 @@ typedef struct {
    GLenum render_prim;
    GLuint SetupIndex;
 
+   /* Temporaries for translating away float colors:
+    */
+   struct gl_client_array ChanColor;
+   struct gl_client_array ChanSecondaryColor;
+
+
    struct {
       void (*Start)( GLcontext * );
       void (*Finish)( GLcontext * );
diff --git a/src/mesa/swrast_setup/ss_triangle.c b/src/mesa/swrast_setup/ss_triangle.c
index 7b2d638213..7612a64d06 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 1.14 2001/07/12 22:09:21 keithw Exp $ */
+/* $Id: ss_triangle.c,v 1.15 2001/07/17 19:39:32 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -141,8 +141,8 @@ static void _swsetup_render_point_tri( GLcontext *ctx,
    }
 }
 
-#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_COLOR(a,b) COPY_CHAN4(a,b)
+#define SS_SPEC(a,b) COPY_3V(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 49e92acf1c..aeb407da49 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 1.13 2001/07/12 22:09:21 keithw Exp $ */
+/* $Id: ss_tritmp.h,v 1.14 2001/07/17 19:39:32 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -61,12 +61,12 @@ 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) {
-		  GLfloat (*vbcolor)[4] = (GLfloat (*)[4])VB->ColorPtr[1]->Ptr;
+		  GLchan (*vbcolor)[4] = (GLchan (*)[4])VB->ColorPtr[1]->Ptr;
 		  SS_COLOR(v[0]->color, vbcolor[e0]);
 		  SS_COLOR(v[1]->color, vbcolor[e1]);
 		  SS_COLOR(v[2]->color, vbcolor[e2]);
 		  if (VB->SecondaryColorPtr[1]) {
-		     GLfloat (*vbspec)[4] = (GLfloat (*)[4])VB->SecondaryColorPtr[1]->Ptr;
+		     GLchan (*vbspec)[4] = (GLchan (*)[4])VB->SecondaryColorPtr[1]->Ptr;
 		     SS_SPEC(v[0]->specular, vbspec[e0]);
 		     SS_SPEC(v[1]->specular, vbspec[e1]);
 		     SS_SPEC(v[2]->specular, vbspec[e2]);
@@ -136,12 +136,12 @@ 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) {
-	    GLfloat (*vbcolor)[4] = (GLfloat (*)[4])VB->ColorPtr[0]->Ptr;
+	    GLchan (*vbcolor)[4] = (GLchan (*)[4])VB->ColorPtr[0]->Ptr;
 	    SS_COLOR(v[0]->color, vbcolor[e0]);
 	    SS_COLOR(v[1]->color, vbcolor[e1]);
 	    SS_COLOR(v[2]->color, vbcolor[e2]);
 	    if (VB->SecondaryColorPtr[0]) {
-	       GLfloat (*vbspec)[4] = (GLfloat (*)[4])VB->SecondaryColorPtr[0]->Ptr;
+	       GLchan (*vbspec)[4] = (GLchan (*)[4])VB->SecondaryColorPtr[0]->Ptr;
 	       SS_SPEC(v[0]->specular, vbspec[e0]);
 	       SS_SPEC(v[1]->specular, vbspec[e1]);
 	       SS_SPEC(v[2]->specular, vbspec[e2]);
diff --git a/src/mesa/swrast_setup/ss_vb.c b/src/mesa/swrast_setup/ss_vb.c
index 7afb646769..d77f5f1e19 100644
--- a/src/mesa/swrast_setup/ss_vb.c
+++ b/src/mesa/swrast_setup/ss_vb.c
@@ -1,4 +1,4 @@
-/* $Id: ss_vb.c,v 1.13 2001/07/12 22:09:21 keithw Exp $ */
+/* $Id: ss_vb.c,v 1.14 2001/07/17 19:39:32 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -30,15 +30,60 @@
 #include "glheader.h"
 #include "colormac.h"
 #include "macros.h"
+#include "mem.h"
 
 #include "swrast/swrast.h"
-
 #include "tnl/t_context.h"
-
 #include "math/m_vector.h"
+#include "math/m_translate.h"
+
 #include "ss_context.h"
 #include "ss_vb.h"
 
+static void do_import( struct vertex_buffer *VB,
+		       struct gl_client_array *to,
+		       struct gl_client_array *from )
+{
+   GLuint count = VB->Count;
+
+   if (!to->Ptr) {
+      to->Ptr = ALIGN_MALLOC( VB->Size * 4 * sizeof(GLchan), 32 );
+      to->Type = CHAN_TYPE;
+   }
+
+   /* No need to transform the same value 3000 times.
+    */
+   if (!from->StrideB) {
+      to->StrideB = 0;
+      count = 1;
+   }
+   else
+      to->StrideB = 4 * sizeof(GLchan);
+   
+   _math_trans_4chan( (GLchan (*)[4]) to->Ptr,
+		      from->Ptr,
+		      from->StrideB,
+		      from->Type,
+		      from->Size,
+		      0,
+		      count);
+}
+
+static void import_float_colors( GLcontext *ctx )
+{
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   struct gl_client_array *to = &SWSETUP_CONTEXT(ctx)->ChanColor;
+   do_import( VB, to, VB->ColorPtr[0] );
+   VB->ColorPtr[0] = to;
+}
+
+static void import_float_spec_colors( GLcontext *ctx )
+{
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   struct gl_client_array *to = &SWSETUP_CONTEXT(ctx)->ChanSecondaryColor;
+   do_import( VB, to, VB->SecondaryColorPtr[0] );
+   VB->SecondaryColorPtr[0] = to;
+}
 
 
 /* Provides a RasterSetup function which prebuilds vertices for the
@@ -182,7 +227,7 @@ static copy_pv_func copy_pv_tab[MAX_SETUPFUNC];
  *      Additional setup and interp for back color and edgeflag. 
  ***********************************************************************/
 
-#define GET_COLOR(ptr, idx) (((GLfloat (*)[4])((ptr)->Ptr))[idx])
+#define GET_COLOR(ptr, idx) (((GLchan (*)[4])((ptr)->Ptr))[idx])
 
 static void interp_extras( GLcontext *ctx,
 			   GLfloat t,
@@ -192,13 +237,13 @@ static void interp_extras( GLcontext *ctx,
    struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
 
    if (VB->ColorPtr[1]) {
-      INTERP_4F( t,
+      INTERP_4CHAN( t,
 		 GET_COLOR(VB->ColorPtr[1], dst),
 		 GET_COLOR(VB->ColorPtr[1], out),
 		 GET_COLOR(VB->ColorPtr[1], in) );
 
       if (VB->SecondaryColorPtr[1]) {
-	 INTERP_3F( t,
+	 INTERP_3CHAN( t,
 		    GET_COLOR(VB->SecondaryColorPtr[1], dst),
 		    GET_COLOR(VB->SecondaryColorPtr[1], out),
 		    GET_COLOR(VB->SecondaryColorPtr[1], in) );
@@ -224,12 +269,12 @@ static void copy_pv_extras( GLcontext *ctx, GLuint dst, GLuint src )
    struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
 
    if (VB->ColorPtr[1]) {
-	 COPY_4FV( GET_COLOR(VB->ColorPtr[1], dst), 
-		   GET_COLOR(VB->ColorPtr[1], src) );
-
+	 COPY_CHAN4( GET_COLOR(VB->ColorPtr[1], dst), 
+		     GET_COLOR(VB->ColorPtr[1], src) );
+	 
 	 if (VB->SecondaryColorPtr[1]) {
-	    COPY_4FV( GET_COLOR(VB->SecondaryColorPtr[1], dst), 
-		      GET_COLOR(VB->SecondaryColorPtr[1], src) );
+	    COPY_3V( GET_COLOR(VB->SecondaryColorPtr[1], dst), 
+		     GET_COLOR(VB->SecondaryColorPtr[1], src) );
 	 }
    }
    else if (VB->IndexPtr[1]) {
@@ -239,6 +284,9 @@ static void copy_pv_extras( GLcontext *ctx, GLuint dst, GLuint src )
    copy_pv_tab[SWSETUP_CONTEXT(ctx)->SetupIndex](ctx, dst, src);
 }
 
+
+
+
 /***********************************************************************
  *                         Initialization 
  ***********************************************************************/
diff --git a/src/mesa/swrast_setup/ss_vbtmp.h b/src/mesa/swrast_setup/ss_vbtmp.h
index 4a83cf2301..682ca90866 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 1.16 2001/07/12 22:09:21 keithw Exp $ */
+/* $Id: ss_vbtmp.h,v 1.17 2001/07/17 19:39:32 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -36,8 +36,8 @@ static void TAG(emit)(GLcontext *ctx, GLuint start, GLuint end,
    SWvertex *v;
    GLfloat *proj;		/* projected clip coordinates */
    GLfloat *tc[MAX_TEXTURE_UNITS];
-   GLfloat *color;
-   GLfloat *spec;
+   GLchan *color;
+   GLchan *spec;
    GLuint *index;
    GLfloat *fog;
    GLfloat *pointSize;
@@ -81,10 +81,16 @@ static void TAG(emit)(GLcontext *ctx, GLuint start, GLuint end,
       fog_stride = VB->FogCoordPtr->stride;
    }
    if (IND & COLOR) {
+      if (VB->ColorPtr[0]->Type != CHAN_TYPE)
+	 import_float_colors( ctx );
+
       color = VB->ColorPtr[0]->Ptr;
       color_stride = VB->ColorPtr[0]->StrideB;
    }
    if (IND & SPEC) {
+      if (VB->SecondaryColorPtr[0]->Type != CHAN_TYPE)
+	 import_float_spec_colors( ctx );
+
       spec = VB->SecondaryColorPtr[0]->Ptr;
       spec_stride = VB->SecondaryColorPtr[0]->StrideB;
    }
@@ -123,17 +129,13 @@ static void TAG(emit)(GLcontext *ctx, GLuint start, GLuint end,
       }
 
       if (IND & COLOR) {
-	 UNCLAMPED_FLOAT_TO_RGBA_CHAN(v->color, color);
-	 STRIDE_F(color, color_stride);
-/*  	 COPY_CHAN4(v->color, color); */
-/*  	 STRIDE_CHAN(color, color_stride); */
+	 COPY_CHAN4(v->color, color);
+	 STRIDE_CHAN(color, color_stride);
       }
 
       if (IND & SPEC) {
-	 UNCLAMPED_FLOAT_TO_RGB_CHAN(v->specular, spec);
-	 STRIDE_F(spec, spec_stride);
-/*  	 COPY_CHAN4(v->specular, spec); */
-/*  	 STRIDE_CHAN(spec, spec_stride); */
+	 COPY_CHAN4(v->specular, spec);
+	 STRIDE_CHAN(spec, spec_stride);
       }
 
       if (IND & FOG) {
@@ -150,7 +152,6 @@ static void TAG(emit)(GLcontext *ctx, GLuint start, GLuint end,
 	 v->pointSize = pointSize[0];
 	 STRIDE_F(pointSize, pointSize_stride);
       }
-
    }
 }
 
@@ -180,10 +181,6 @@ static void TAG(interp)( GLcontext *ctx,
       dst->win[3] =                   oow;
    }
    
-/*     fprintf(stderr, "%s edst %d win %f %f %f %f\n", */
-/*  	   __FUNCTION__, edst,  */
-/*  	   dst->win[0], dst->win[1], dst->win[2], dst->win[3]); */
-
    if (IND & TEX0) {
       INTERP_4F( t, dst->texcoord[0], out->texcoord[0], in->texcoord[0] );
    }
-- 
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