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don't call _mesa_win_fog_coords_from_z() if fog is disabled, fixes FP exception

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Brian Paul 2001-05-09 17:21:51 +00:00
parent 7b9ff48d02
commit 78023e9808
1 changed files with 5 additions and 2 deletions
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7
src/mesa/swrast/s_bitmap.c
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@ -1,4 +1,4 @@
/* $Id: s_bitmap.c,v 1.8 2001/05/03 22:13:32 brianp Exp $ */
/* $Id: s_bitmap.c,v 1.9 2001/05/09 17:21:51 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -74,7 +74,10 @@ _swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
fragZ = (GLdepth) ( ctx->Current.RasterPos[2] * ctx->DepthMaxF);
_mesa_win_fog_coords_from_z( ctx, 1, &fragZ, &fogCoord );
if (ctx->Fog.Enabled)
_mesa_win_fog_coords_from_z( ctx, 1, &fragZ, &fogCoord );
else
fogCoord = 0.0;
for (row=0; row<height; row++) {
const GLubyte *src = (const GLubyte *) _mesa_image_address( unpack,