Changed a number of context fields from GLchan to GLfloat (such as ClearColor).

Also changed parameter types for some driver functions (like ctx->Driver.Clear-
Color).  Updated all the device drivers.
Someday, we want to support 8, 16 and 32-bit channels dynamically at runtime.

4 files changed, 29 insertions, 13 deletions

diff --git a/src/mesa/drivers/svga/svgamesa15.c b/src/mesa/drivers/svga/svgamesa15.c
index 89ff6445be2..d14d58d7561 100644
--- a/src/mesa/drivers/svga/svgamesa15.c
+++ b/src/mesa/drivers/svga/svgamesa15.c
@@ -1,4 +1,4 @@
-/* $Id: svgamesa15.c,v 1.9 2001/02/06 00:03:47 brianp Exp $ */
+/* $Id: svgamesa15.c,v 1.10 2002/10/04 19:10:11 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -56,9 +56,13 @@ static unsigned long __svga_getpixel15(int x, int y)
     return shortBuffer[offset];
 }
 
-void __clear_color15( GLcontext *ctx, const GLchan color[4] )
+void __clear_color15( GLcontext *ctx, const GLfloat color[4] )
 {
-   SVGAMesa->clear_hicolor=(color[0]>>3)<<10 | (color[1]>>3)<<5 | (color[2]>>3);  
+   GLubyte col[3];
+   CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+   CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+   CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+   SVGAMesa->clear_hicolor=(col[0]>>3)<<10 | (col[1]>>3)<<5 | (col[2]>>3);  
 /*   SVGAMesa->clear_hicolor=(red)<<10 | (green)<<5 | (blue);*/
 }   
 
diff --git a/src/mesa/drivers/svga/svgamesa16.c b/src/mesa/drivers/svga/svgamesa16.c
index ed36beca244..9078d927091 100644
--- a/src/mesa/drivers/svga/svgamesa16.c
+++ b/src/mesa/drivers/svga/svgamesa16.c
@@ -1,4 +1,4 @@
-/* $Id: svgamesa16.c,v 1.9 2001/02/06 00:03:48 brianp Exp $ */
+/* $Id: svgamesa16.c,v 1.10 2002/10/04 19:10:11 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -59,9 +59,13 @@ static unsigned long __svga_getpixel16(int x, int y)
 
 void __clear_color16( GLcontext *ctx, const GLchan color[4] )
 {
-    SVGAMesa->clear_hicolor = (color[0] >> 3) << 11 |
-                              (color[1] >> 2) << 5 |
-                              (color[2] >> 3); 
+   GLubyte col[3];
+   CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+   CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+   CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+   SVGAMesa->clear_hicolor = (col[0] >> 3) << 11 |
+                              (col[1] >> 2) << 5 |
+                              (col[2] >> 3); 
 /*    SVGAMesa->clear_hicolor=(red)<<11 | (green)<<5 | (blue); */
 }   
 
diff --git a/src/mesa/drivers/svga/svgamesa24.c b/src/mesa/drivers/svga/svgamesa24.c
index df1c47be3e8..fc56ccb6b32 100644
--- a/src/mesa/drivers/svga/svgamesa24.c
+++ b/src/mesa/drivers/svga/svgamesa24.c
@@ -1,4 +1,4 @@
-/* $Id: svgamesa24.c,v 1.10 2001/02/06 00:03:48 brianp Exp $ */
+/* $Id: svgamesa24.c,v 1.11 2002/10/04 19:10:11 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -81,9 +81,13 @@ static unsigned long __svga_getpixel24(int x, int y)
 
 void __clear_color24( GLcontext *ctx, const GLchan color[4] )
 {
-   SVGAMesa->clear_red = color[0];
-   SVGAMesa->clear_green = color[1];
-   SVGAMesa->clear_blue = color[2];
+   GLubyte col[3];
+   CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+   CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+   CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+   SVGAMesa->clear_red = col[0];
+   SVGAMesa->clear_green = col[1];
+   SVGAMesa->clear_blue = col[2];
 /*   SVGAMesa->clear_truecolor = red<<16 | green<<8 | blue; */
 }
 
diff --git a/src/mesa/drivers/svga/svgamesa32.c b/src/mesa/drivers/svga/svgamesa32.c
index 49c1812b3de..2ef3a191be0 100644
--- a/src/mesa/drivers/svga/svgamesa32.c
+++ b/src/mesa/drivers/svga/svgamesa32.c
@@ -1,4 +1,4 @@
-/* $Id: svgamesa32.c,v 1.10 2001/02/06 00:03:48 brianp Exp $ */
+/* $Id: svgamesa32.c,v 1.11 2002/10/04 19:10:11 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -78,7 +78,11 @@ static unsigned long __svga_getpixel32(int x, int y)
 
 void __clear_color32( GLcontext *ctx, const GLchan color[4] )
 {
-   SVGAMesa->clear_truecolor = (color[0] << 16) | (color[1] << 8) | color[2];
+   GLubyte col[3];
+   CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+   CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+   CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+   SVGAMesa->clear_truecolor = (col[0] << 16) | (col[1] << 8) | col[2];
 }
 
 void __clear32( GLcontext *ctx, GLbitfield mask, GLboolean all,