diff options
| author | Keith Whitwell <keith@tungstengraphics.com> | 2001-01-29 20:47:39 +0000 |
|---|---|---|
| committer | Keith Whitwell <keith@tungstengraphics.com> | 2001-01-29 20:47:39 +0000 |
| commit | 5c1e7fa6ee72f4403d9ec9d12830dd689b966e71 (patch) | |
| tree | 8cb11c26af178632b05de9c5b2f53c32331475c5 /src/mesa/tnl/t_vb_vertex.c | |
| parent | 4b90e68ac6d0fe4ffca5e2cd51794bb4350cac28 (diff) | |
Removed knowledge of swrast Clear/Bitmap/Accum/Draw/Read/CopyPixels
functions from core mesa -- if drivers need these fallbacks they
must now call them themselves.
Introduced hooks for clip-vertex-interpolation and the rendering
of clipped lines and polygons. Allows drivers to interpolate
their hardware-format vertices directly. Used in dri drivers to
replace fastpath code.
Slight optimizations to pipeline build/run routines.
Diffstat (limited to 'src/mesa/tnl/t_vb_vertex.c')
| -rw-r--r-- | src/mesa/tnl/t_vb_vertex.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/src/mesa/tnl/t_vb_vertex.c b/src/mesa/tnl/t_vb_vertex.c index 0c163ee4f3..fc35103395 100644 --- a/src/mesa/tnl/t_vb_vertex.c +++ b/src/mesa/tnl/t_vb_vertex.c @@ -1,4 +1,4 @@ -/* $Id: t_vb_vertex.c,v 1.2 2001/01/13 05:48:26 keithw Exp $ */ +/* $Id: t_vb_vertex.c,v 1.3 2001/01/29 20:47:39 keithw Exp $ */ /* * Mesa 3-D graphics library @@ -160,13 +160,26 @@ static GLboolean run_vertex_stage( GLcontext *ctx, { /* Combined modelviewproject transform: */ - if (ctx->_ModelProjectMatrix.type == MATRIX_IDENTITY) + if (ctx->_ModelProjectMatrix.type == MATRIX_IDENTITY) VB->ClipPtr = VB->ObjPtr; else VB->ClipPtr = TransformRaw( &store->clip, &ctx->_ModelProjectMatrix, VB->ObjPtr ); } + /* Drivers expect this to be clean to element 4... + */ + if (VB->ClipPtr->size < 4) { + if (VB->ClipPtr->flags & VEC_NOT_WRITEABLE) { + ASSERT(VB->ClipPtr == VB->ObjPtr); + VB->import_data( ctx, VERT_OBJ, VEC_NOT_WRITEABLE ); + VB->ClipPtr = VB->ObjPtr; + } + if (VB->ClipPtr->size == 2) + gl_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 ); + gl_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 ); + } + /* Cliptest and perspective divide. Clip functions must clear * the clipmask. */ @@ -181,20 +194,6 @@ static GLboolean run_vertex_stage( GLcontext *ctx, &store->ormask, &store->andmask ); - /* Drivers expect this to be size 4... - */ - if (VB->ProjectedClipPtr->size < 4) { - ASSERT(VB->ProjectedClipPtr == VB->ClipPtr); - if (VB->ProjectedClipPtr->flags & VEC_NOT_WRITEABLE) { - ASSERT(VB->ProjectedClipPtr == VB->ObjPtr); - VB->import_data( ctx, VERT_OBJ, VEC_NOT_WRITEABLE ); - VB->ProjectedClipPtr = VB->ClipPtr = VB->ObjPtr; - } - if (VB->ClipPtr->size == 2) - gl_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 ); - gl_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 ); - VB->ClipPtr->size = 4; - } } else { VB->ProjectedClipPtr = 0; gl_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr, |