diff options
| -rw-r--r-- | src/mesa/swrast/s_span.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c index 097d2c7b51c..5814400b0fe 100644 --- a/src/mesa/swrast/s_span.c +++ b/src/mesa/swrast/s_span.c @@ -61,8 +61,11 @@ _swrast_span_default_z( GLcontext *ctx, SWspan *span ) const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF; if (ctx->DrawBuffer->Visual.depthBits <= 16) span->z = FloatToFixed(ctx->Current.RasterPos[2] * depthMax + 0.5F); - else - span->z = (GLint) (ctx->Current.RasterPos[2] * depthMax + 0.5F); + else { + GLfloat tmpf = ctx->Current.RasterPos[2] * depthMax; + tmpf = MIN2(tmpf, depthMax); + span->z = (GLint) tmpf; + } span->zStep = 0; span->interpMask |= SPAN_Z; } |