-/* $Id: t_vb_vertex.c,v 1.7 2001/03/12 00:48:44 gareth Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 5.0
*
* Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
*
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Keith Whitwell <keithw@valinux.com>
+ * Keith Whitwell <keith@tungstengraphics.com>
*/
#include "colormac.h"
#include "context.h"
#include "macros.h"
-#include "mem.h"
-#include "mmath.h"
+#include "imports.h"
#include "mtypes.h"
#include "math/m_xform.h"
*/
GLvector4f *save_eyeptr;
GLvector4f *save_clipptr;
- GLvector4f *save_projptr;
+ GLvector4f *save_ndcptr;
};
#define VERTEX_STAGE_DATA(stage) ((struct vertex_stage_data *)stage->privatePtr)
GLuint p; \
\
for (p = 0; p < ctx->Const.MaxClipPlanes; p++) \
- if (ctx->Transform.ClipEnabled[p]) { \
+ if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { \
GLuint nr, i; \
const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; \
const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; \
static GLboolean run_vertex_stage( GLcontext *ctx,
- struct gl_pipeline_stage *stage )
+ struct tnl_pipeline_stage *stage )
{
struct vertex_stage_data *store = (struct vertex_stage_data *)stage->privatePtr;
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
- if (stage->changed_inputs)
- {
-/* VB->ObjPtr->size = 4; */
+ ASSERT(!ctx->VertexProgram.Enabled);
+
+ if (stage->changed_inputs) {
if (ctx->_NeedEyeCoords) {
- /* Seperate modelview and project transformations:
+ /* Separate modelview transformation:
+ * Use combined ModelProject to avoid some depth artifacts
*/
- if (ctx->ModelView.type == MATRIX_IDENTITY)
+ if (ctx->ModelviewMatrixStack.Top->type == MATRIX_IDENTITY)
VB->EyePtr = VB->ObjPtr;
else
- VB->EyePtr = TransformRaw( &store->eye, &ctx->ModelView,
+ VB->EyePtr = TransformRaw( &store->eye,
+ ctx->ModelviewMatrixStack.Top,
VB->ObjPtr);
-
- if (ctx->ProjectionMatrix.type == MATRIX_IDENTITY)
- VB->ClipPtr = VB->EyePtr;
- else
- VB->ClipPtr = TransformRaw( &store->clip, &ctx->ProjectionMatrix,
- VB->EyePtr );
- }
- else
- {
- /* Combined modelviewproject transform:
- */
- if (ctx->_ModelProjectMatrix.type == MATRIX_IDENTITY)
- VB->ClipPtr = VB->ObjPtr;
- else
- VB->ClipPtr = TransformRaw( &store->clip, &ctx->_ModelProjectMatrix,
- VB->ObjPtr );
}
+ 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)
- _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 );
+ switch (VB->ClipPtr->size) {
+ case 1:
+ /* impossible */
+ case 2:
+ _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 );
+ case 3:
_mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 );
+ case 4:
+ break;
}
/* Cliptest and perspective divide. Clip functions must clear
store->ormask = 0;
store->andmask = CLIP_ALL_BITS;
- if (tnl->NeedProjCoords) {
- VB->ProjectedClipPtr =
+ if (tnl->NeedNdcCoords) {
+ VB->NdcPtr =
_mesa_clip_tab[VB->ClipPtr->size]( VB->ClipPtr,
&store->proj,
store->clipmask,
&store->ormask,
&store->andmask );
-
- } else {
- VB->ProjectedClipPtr = 0;
+ }
+ else {
+ VB->NdcPtr = 0;
_mesa_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr,
0,
store->clipmask,
/* Test userclip planes. This contributes to VB->ClipMask, so
* is essentially required to be in this stage.
*/
- if (ctx->Transform._AnyClip) {
+ if (ctx->Transform.ClipPlanesEnabled) {
usercliptab[VB->ClipPtr->size]( ctx,
VB->ClipPtr,
store->clipmask,
VB->ClipOrMask = store->ormask;
VB->ClipMask = store->clipmask;
- if (VB->ClipPtr == VB->ObjPtr && (VB->importable_data & VERT_OBJ))
- VB->importable_data |= VERT_CLIP;
-
store->save_eyeptr = VB->EyePtr;
store->save_clipptr = VB->ClipPtr;
- store->save_projptr = VB->ProjectedClipPtr;
+ store->save_ndcptr = VB->NdcPtr;
}
else {
/* Replay the sideeffects.
*/
VB->EyePtr = store->save_eyeptr;
VB->ClipPtr = store->save_clipptr;
- VB->ProjectedClipPtr = store->save_projptr;
+ VB->NdcPtr = store->save_ndcptr;
VB->ClipMask = store->clipmask;
VB->ClipOrMask = store->ormask;
- if (VB->ClipPtr == VB->ObjPtr && (VB->importable_data & VERT_OBJ))
- VB->importable_data |= VERT_CLIP;
if (store->andmask)
return GL_FALSE;
}
}
-static void check_vertex( GLcontext *ctx, struct gl_pipeline_stage *stage )
+static void check_vertex( GLcontext *ctx, struct tnl_pipeline_stage *stage )
{
- (void) ctx;
- (void) stage;
+ stage->active = !ctx->VertexProgram.Enabled;
}
static GLboolean init_vertex_stage( GLcontext *ctx,
- struct gl_pipeline_stage *stage )
+ struct tnl_pipeline_stage *stage )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
struct vertex_stage_data *store;
return stage->run( ctx, stage );
}
-static void dtr( struct gl_pipeline_stage *stage )
+static void dtr( struct tnl_pipeline_stage *stage )
{
struct vertex_stage_data *store = VERTEX_STAGE_DATA(stage);
}
-const struct gl_pipeline_stage _tnl_vertex_transform_stage =
+const struct tnl_pipeline_stage _tnl_vertex_transform_stage =
{
"modelview/project/cliptest/divide",
- 0, /* re-check -- always on */
+ _NEW_PROGRAM, /* check_state: only care about vertex prog */
+ _MESA_NEW_NEED_EYE_COORDS | /* run_state: when to invalidate / re-run */
_NEW_MODELVIEW|
_NEW_PROJECTION|
- _NEW_TRANSFORM, /* re-run */
+ _NEW_PROGRAM|
+ _NEW_TRANSFORM,
GL_TRUE, /* active */
- VERT_OBJ, /* inputs */
- VERT_EYE|VERT_CLIP, /* outputs */
- 0, 0, /* changed_inputs, private */
+ _TNL_BIT_POS, /* inputs */
+ _TNL_BIT_POS, /* outputs */
+ 0, /* changed_inputs */
+ NULL, /* private data */
dtr, /* destructor */
check_vertex, /* check */
init_vertex_stage /* run -- initially set to init */
projects / mesa.git / blobdiff