diff options
Diffstat (limited to 'src/mesa/main/drawpix.c')
| -rw-r--r-- | src/mesa/main/drawpix.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c index 638679e8455..6d855b58006 100644 --- a/src/mesa/main/drawpix.c +++ b/src/mesa/main/drawpix.c @@ -2,7 +2,7 @@ * Mesa 3-D graphics library * Version: 6.5 * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -363,10 +363,12 @@ _mesa_Bitmap( GLsizei width, GLsizei height, } if (ctx->RenderMode == GL_RENDER) { - /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */ - GLint x = IFLOOR(ctx->Current.RasterPos[0] - xorig); - GLint y = IFLOOR(ctx->Current.RasterPos[1] - yorig); - ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap ); + if (bitmap) { + /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */ + GLint x = IFLOOR(ctx->Current.RasterPos[0] - xorig); + GLint y = IFLOOR(ctx->Current.RasterPos[1] - yorig); + ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap ); + } } #if _HAVE_FULL_GL else if (ctx->RenderMode == GL_FEEDBACK) { |