diff options
Diffstat (limited to 'src/mesa/tnl/t_vb_vertex.c')
| -rw-r--r-- | src/mesa/tnl/t_vb_vertex.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/mesa/tnl/t_vb_vertex.c b/src/mesa/tnl/t_vb_vertex.c index 30aa7c40868..4734754ea40 100644 --- a/src/mesa/tnl/t_vb_vertex.c +++ b/src/mesa/tnl/t_vb_vertex.c @@ -118,6 +118,22 @@ static void (*(usercliptab[5]))( GLcontext *, }; +void +tnl_clip_prepare(GLcontext *ctx) +{ + /* Neither the x86 nor sparc asm cliptest functions have been updated + * for ARB_depth_clamp, so force the C paths. + */ + if (ctx->Transform.DepthClamp) { + static GLboolean c_funcs_installed = GL_FALSE; + if (!c_funcs_installed) { + init_c_cliptest(); + c_funcs_installed = GL_TRUE; + } + } +} + + static GLboolean run_vertex_stage( GLcontext *ctx, struct tnl_pipeline_stage *stage ) @@ -129,6 +145,8 @@ static GLboolean run_vertex_stage( GLcontext *ctx, if (ctx->VertexProgram._Current) return GL_TRUE; + tnl_clip_prepare(ctx); + if (ctx->_NeedEyeCoords) { /* Separate modelview transformation: * Use combined ModelProject to avoid some depth artifacts @@ -173,7 +191,8 @@ static GLboolean run_vertex_stage( GLcontext *ctx, &store->proj, store->clipmask, &store->ormask, - &store->andmask ); + &store->andmask, + !ctx->Transform.DepthClamp ); } else { VB->NdcPtr = NULL; @@ -181,7 +200,8 @@ static GLboolean run_vertex_stage( GLcontext *ctx, NULL, store->clipmask, &store->ormask, - &store->andmask ); + &store->andmask, + !ctx->Transform.DepthClamp ); } if (store->andmask) |