From 96385fa15569e25cd0977e678c0ff3bdab6ef316 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Sat, 14 Jul 2001 17:53:04 +0000
Subject: more work on float colors (still not finished)

---
 src/mesa/main/Makefile.OSMesa16 |  3 +--
 src/mesa/main/colortab.c        |  3 +--
 src/mesa/main/image.c           | 15 ++++++++++++++-
 3 files changed, 16 insertions(+), 5 deletions(-)

(limited to 'src/mesa/main')

diff --git a/src/mesa/main/Makefile.OSMesa16 b/src/mesa/main/Makefile.OSMesa16
index 43193aa36b..d6da7db06c 100644
--- a/src/mesa/main/Makefile.OSMesa16
+++ b/src/mesa/main/Makefile.OSMesa16
@@ -1,4 +1,4 @@
-# $Id: Makefile.OSMesa16,v 1.4 2001/07/13 20:07:37 brianp Exp $
+# $Id: Makefile.OSMesa16,v 1.5 2001/07/14 17:53:04 brianp Exp $
 
 # Mesa 3-D graphics library
 # Version:  3.5
@@ -121,7 +121,6 @@ CORE_SOURCES = \
 	swrast_setup/ss_context.c \
 	swrast_setup/ss_triangle.c \
 	swrast_setup/ss_vb.c \
-	swrast_setup/ss_interp.c \
 	tnl/t_array_api.c \
 	tnl/t_array_import.c \
 	tnl/t_context.c \
diff --git a/src/mesa/main/colortab.c b/src/mesa/main/colortab.c
index 0b0f50c074..bb45738270 100644
--- a/src/mesa/main/colortab.c
+++ b/src/mesa/main/colortab.c
@@ -1,4 +1,4 @@
-/* $Id: colortab.c,v 1.40 2001/04/20 19:21:41 brianp Exp $ */
+/* $Id: colortab.c,v 1.41 2001/07/14 17:53:04 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -127,7 +127,6 @@ _mesa_free_colortable_data( struct gl_color_table *p )
 static void
 set_component_sizes( struct gl_color_table *table )
 {
-   /* XXX what about GLfloat tables? */
    switch (table->Format) {
       case GL_ALPHA:
          table->RedSize = 0;
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index 376234285b..d99d908509 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -1,4 +1,4 @@
-/* $Id: image.c,v 1.62 2001/06/13 14:55:25 brianp Exp $ */
+/* $Id: image.c,v 1.63 2001/07/14 17:53:04 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -790,6 +790,11 @@ _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
 
 
 
+/*
+ * Used to pack an array [][4] of RGBA GLchan colors as specified
+ * by the dstFormat, dstType and dstPacking.  Used by glReadPixels,
+ * glGetConvolutionFilter(), etc.
+ */
 void
 _mesa_pack_float_rgba_span( GLcontext *ctx,
                             GLuint n, CONST GLfloat rgbaIn[][4],
@@ -886,7 +891,11 @@ _mesa_pack_float_rgba_span( GLcontext *ctx,
    if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) {
       for (i = 0; i < n; i++) {
          GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+#if CHAN_TYPE == GL_FLOAT
+         luminance[i] = sum;
+#else
          luminance[i] = CLAMP(sum, 0.0F, 1.0F);
+#endif
       }
    }
 
@@ -2666,6 +2675,7 @@ _mesa_unpack_chan_color_span( GLcontext *ctx,
       }
 
       /* clamp to [0,1] */
+#if CHAN_TYPE != GL_FLOAT
       {
          GLuint i;
          for (i = 0; i < n; i++) {
@@ -2675,6 +2685,7 @@ _mesa_unpack_chan_color_span( GLcontext *ctx,
             rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F);
          }
       }
+#endif
 
       /* Now determine which color channels we need to produce.
        * And determine the dest index (offset) within each color tuple.
@@ -2941,6 +2952,7 @@ _mesa_unpack_float_color_span( GLcontext *ctx,
       }
 
       /* clamp to [0,1] */
+#if CHAN_TYPE != GL_FLOAT
       if (clamp) {
          GLuint i;
          for (i = 0; i < n; i++) {
@@ -2950,6 +2962,7 @@ _mesa_unpack_float_color_span( GLcontext *ctx,
             rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F);
          }
       }
+#endif
 
       /* Now determine which color channels we need to produce.
        * And determine the dest index (offset) within each color tuple.
-- 
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