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-rw-r--r--src/mesa/drivers/dri/common/depthtmp.h17
-rw-r--r--src/mesa/drivers/dri/common/stenciltmp.h8
2 files changed, 13 insertions, 12 deletions
diff --git a/src/mesa/drivers/dri/common/depthtmp.h b/src/mesa/drivers/dri/common/depthtmp.h
index d8b8775ae9..ec79aca30f 100644
--- a/src/mesa/drivers/dri/common/depthtmp.h
+++ b/src/mesa/drivers/dri/common/depthtmp.h
@@ -45,15 +45,15 @@ static void TAG(WriteDepthSpan)( GLcontext *ctx,
GLint i = 0;
CLIPSPAN( x, y, n, x1, n1, i );
- if ( DBG ) fprintf( stderr, "WriteDepthSpan %d..%d (x1 %d)\n",
- (int)i, (int)n1, (int)x1 );
+ if ( DBG ) fprintf( stderr, "WriteDepthSpan %d..%d (x1 %d) (mask %p)\n",
+ (int)i, (int)n1, (int)x1, mask );
if ( mask ) {
- for ( ; i < n1 ; i++, x1++ ) {
+ for ( ; n1>0 ; i++, x1++, n1-- ) {
if ( mask[i] ) WRITE_DEPTH( x1, y, depth[i] );
}
} else {
- for ( ; i < n1 ; i++, x1++ ) {
+ for ( ; n1>0 ; i++, x1++, n1-- ) {
WRITE_DEPTH( x1, y, depth[i] );
}
}
@@ -87,11 +87,11 @@ static void TAG(WriteMonoDepthSpan)( GLcontext *ctx,
__FUNCTION__, (int)i, (int)n1, (int)x1, (GLuint)depth );
if ( mask ) {
- for ( ; i < n1 ; i++, x1++ ) {
+ for ( ; n1>0 ; i++, x1++, n1-- ) {
if ( mask[i] ) WRITE_DEPTH( x1, y, depth );
}
} else {
- for ( ; i < n1 ; i++, x1++ ) {
+ for ( ; n1>0 ; x1++, n1-- ) {
WRITE_DEPTH( x1, y, depth );
}
}
@@ -162,8 +162,9 @@ static void TAG(ReadDepthSpan)( GLcontext *ctx,
{
GLint i = 0;
CLIPSPAN( x, y, n, x1, n1, i );
- for ( ; i < n1 ; i++ )
- READ_DEPTH( depth[i], (x1+i), y );
+ for ( ; n1>0 ; i++, n1-- ) {
+ READ_DEPTH( depth[i], x+i, y );
+ }
}
HW_ENDCLIPLOOP();
#endif
diff --git a/src/mesa/drivers/dri/common/stenciltmp.h b/src/mesa/drivers/dri/common/stenciltmp.h
index 365e9811ac..285d8e5291 100644
--- a/src/mesa/drivers/dri/common/stenciltmp.h
+++ b/src/mesa/drivers/dri/common/stenciltmp.h
@@ -41,13 +41,13 @@ static void TAG(WriteStencilSpan)( GLcontext *ctx,
if (mask)
{
- for (;i<n1;i++,x1++)
+ for (;n1>0;i++,x1++,n1--)
if (mask[i])
WRITE_STENCIL( x1, y, stencil[i] );
}
else
{
- for (;i<n1;i++,x1++)
+ for (;n1>0;i++,x1++,n1--)
WRITE_STENCIL( x1, y, stencil[i] );
}
}
@@ -107,8 +107,8 @@ static void TAG(ReadStencilSpan)( GLcontext *ctx,
{
GLint i = 0;
CLIPSPAN(x,y,n,x1,n1,i);
- for (;i<n1;i++)
- READ_STENCIL( stencil[i], (x1+i), y );
+ for (;n1>0;i++,n1--)
+ READ_STENCIL( stencil[i], (x+i), y );
}
HW_ENDCLIPLOOP();
}