r300: add occlusion queries support

[mesa.git] / src / mesa / drivers / svga / svgamesa32.c

diff --git a/src/mesa/drivers/svga/svgamesa32.c b/src/mesa/drivers/svga/svgamesa32.c
index 88907c49c8dacdd50633cd8f9d75e9ff985c4e4f..8eea3cbe648e0a2adffe9411914601b441082171 100644 (file)
--- a/src/mesa/drivers/svga/svgamesa32.c
+++ b/src/mesa/drivers/svga/svgamesa32.c
@@ -1,9 +1,8 @@
-/* $Id: svgamesa32.c,v 1.9 2001/01/24 00:04:59 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
- * Version:  3.3
- * Copyright (C) 1995-2000  Brian Paul
+ * Version:  5.0
+ * Copyright (C) 1995-2002  Brian Paul
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -35,10 +34,12 @@
 
 #include "svgapix.h"
 #include "svgamesa32.h"
+#include "swrast/swrast.h"
+
 
 #if 0
 /* this doesn't compile with GCC on RedHat 6.1 */
-static inline int RGB2BGR32(int c)
+static INLINE int RGB2BGR32(int c)
 {
        asm("rorw  $8, %0\n"     
            "rorl $16, %0\n"     
@@ -74,15 +75,23 @@ static unsigned long __svga_getpixel32(int x, int y)
     return intBuffer[offset];
 }
 
-void __clear_color32( GLcontext *ctx, const GLchan color[4] )
+void __clear_color32( GLcontext *ctx, const GLfloat 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];
 }
 
-GLbitfield __clear32( GLcontext *ctx, GLbitfield mask, GLboolean all,
-                        GLint x, GLint y, GLint width, GLint height )
+void __clear32( GLcontext *ctx, GLbitfield mask )
 {
    int i,j;
+   int x = ctx->DrawBuffer->_Xmin;
+   int y = ctx->DrawBuffer->_Ymin;
+   int width = ctx->DrawBuffer->_Xmax - x;
+   int height = ctx->DrawBuffer->_Ymax - y;
+   GLboolean all = (width == ctx->DrawBuffer->Width && height == ctx->DrawBuffer->height)
    
    if (mask & DD_FRONT_LEFT_BIT) {
       if (all) {
@@ -98,6 +107,7 @@ GLbitfield __clear32( GLcontext *ctx, GLbitfield mask, GLboolean all,
                __svga_drawpixel32(i,j,SVGAMesa->clear_truecolor);
          SVGABuffer.DrawBuffer = tmp;
       }
+      mask &= ~DD_FRONT_LEFT_BIT;
    }
    if (mask & DD_BACK_LEFT_BIT) {
       if (all) {
@@ -113,8 +123,11 @@ GLbitfield __clear32( GLcontext *ctx, GLbitfield mask, GLboolean all,
                __svga_drawpixel32(i,j,SVGAMesa->clear_truecolor);
          SVGABuffer.DrawBuffer = tmp;
       }
+      mask &= ~DD_BACK_LEFT_BIT;
    }
-   return mask & (~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT));
+
+   if (mask)
+      _swrast_Clear( ctx, mask );
 }
 
 void __write_rgba_span32( const GLcontext *ctx, GLuint n, GLint x, GLint y,