diff options
Diffstat (limited to 'src/mesa/drivers/glide/fxdd.c')
| -rw-r--r-- | src/mesa/drivers/glide/fxdd.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/mesa/drivers/glide/fxdd.c b/src/mesa/drivers/glide/fxdd.c index 01e70951418..58310cfb33f 100644 --- a/src/mesa/drivers/glide/fxdd.c +++ b/src/mesa/drivers/glide/fxdd.c @@ -180,13 +180,16 @@ static GLbitfield fxDDClear(GLcontext *ctx, GLbitfield mask, GLboolean all, const FxU16 clearD = (FxU16) (ctx->Depth.Clear * 0xffff); GLbitfield softwareMask = mask & (DD_STENCIL_BIT | DD_ACCUM_BIT); + /* we can't clear stencil or accum buffers */ + mask &= ~(DD_STENCIL_BIT | DD_ACCUM_BIT); + if (MESA_VERBOSE & VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxDDClear(%d,%d,%d,%d)\n", (int) x, (int) y, (int) width, (int) height); } if (colorMask != 0xffffffff) { - /* do color buffer clears in software */ + /* do masked color buffer clears in software */ softwareMask |= (mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)); mask &= ~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT); } |