Consolidate texObj->Pos/Neg/X/Y/Z and texObj->Image into a single

[mesa.git] / src / mesa / swrast / s_aaline.c

diff --git a/src/mesa/swrast/s_aaline.c b/src/mesa/swrast/s_aaline.c
index 663d43ec87d8df9cd1507af991eff6afbaa3b481..bbdc92b92a51fb85faea792cc1442b3e1d92f560 100644 (file)
--- a/src/mesa/swrast/s_aaline.c
+++ b/src/mesa/swrast/s_aaline.c
@@ -1,10 +1,8 @@
-/* $Id: s_aaline.c,v 1.16 2002/08/07 00:45:07 brianp Exp $ */
-
 /*
  * Mesa 3-D graphics library
- * Version:  4.1
+ * Version:  5.0.3
  *
- * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -26,12 +24,13 @@
 
 
 #include "glheader.h"
+#include "imports.h"
+#include "macros.h"
 #include "swrast/s_aaline.h"
 #include "swrast/s_context.h"
 #include "swrast/s_span.h"
 #include "swrast/swrast.h"
 #include "mtypes.h"
-#include "mmath.h"
 
 
 #define SUB_PIXEL 4
@@ -69,12 +68,13 @@ struct LineInfo
    /* DO_SPEC */
    GLfloat srPlane[4], sgPlane[4], sbPlane[4];
    /* DO_TEX or DO_MULTITEX */
-   GLfloat sPlane[MAX_TEXTURE_UNITS][4];
-   GLfloat tPlane[MAX_TEXTURE_UNITS][4];
-   GLfloat uPlane[MAX_TEXTURE_UNITS][4];
-   GLfloat vPlane[MAX_TEXTURE_UNITS][4];
-   GLfloat lambda[MAX_TEXTURE_UNITS];
-   GLfloat texWidth[MAX_TEXTURE_UNITS], texHeight[MAX_TEXTURE_UNITS];
+   GLfloat sPlane[MAX_TEXTURE_COORD_UNITS][4];
+   GLfloat tPlane[MAX_TEXTURE_COORD_UNITS][4];
+   GLfloat uPlane[MAX_TEXTURE_COORD_UNITS][4];
+   GLfloat vPlane[MAX_TEXTURE_COORD_UNITS][4];
+   GLfloat lambda[MAX_TEXTURE_COORD_UNITS];
+   GLfloat texWidth[MAX_TEXTURE_COORD_UNITS];
+   GLfloat texHeight[MAX_TEXTURE_COORD_UNITS];
 
    struct sw_span span;
 };
@@ -179,12 +179,16 @@ solve_plane_recip(GLfloat x, GLfloat y, const GLfloat plane[4])
 static INLINE GLchan
 solve_plane_chan(GLfloat x, GLfloat y, const GLfloat plane[4])
 {
-   GLfloat z = (plane[3] + plane[0] * x + plane[1] * y) / -plane[2] + 0.5F;
-   if (z < 0.0F)
+   const GLfloat z = (plane[3] + plane[0] * x + plane[1] * y) / -plane[2];
+#if CHAN_TYPE == GL_FLOAT
+   return CLAMP(z, 0.0F, CHAN_MAXF);
+#else
+   if (z < 0)
       return 0;
-   else if (z > CHAN_MAXF)
-      return (GLchan) CHAN_MAXF;
-   return (GLchan) (GLint) z;
+   else if (z > CHAN_MAX)
+      return CHAN_MAX;
+   return (GLchan) IROUND_POS(z);
+#endif
 }
 
 
@@ -513,8 +517,8 @@ _swrast_choose_aa_line_function(GLcontext *ctx)
 
    if (ctx->Visual.rgbMode) {
       /* RGBA */
-      if (ctx->Texture._EnabledUnits != 0) {
-         if (ctx->Texture._EnabledUnits > 1) {
+      if (ctx->Texture._EnabledCoordUnits != 0) {
+         if (ctx->Texture._EnabledCoordUnits > 1) {
             /* Multitextured! */
             if (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR || 
                 ctx->Fog.ColorSumEnabled)