diff options
| author | Xiang, Haihao <haihao.xiang@intel.com> | 2007-09-27 15:52:01 +0800 |
|---|---|---|
| committer | Xiang, Haihao <haihao.xiang@intel.com> | 2007-09-27 15:52:01 +0800 |
| commit | 6254be9b7144821e044d3fbade514fa0358db693 (patch) | |
| tree | b7fc4d03328878c7699ef806430cdf2dfcdf8e46 /src/mesa/swrast/s_span.c | |
| parent | aa88d11e7d881f0dd4c02fcefceb4085bdb3cf8a (diff) | |
mesa: make sure the gotten value isn't greater than the
max depth buffer value on 64bit system. fix bug #12095
Diffstat (limited to 'src/mesa/swrast/s_span.c')
| -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 bbde0025f4..f1e58bd3d8 100644 --- a/src/mesa/swrast/s_span.c +++ b/src/mesa/swrast/s_span.c @@ -64,8 +64,11 @@ _swrast_span_default_attribs(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; } |