-/* $Id: t_vb_vertex.c,v 1.1 2000/12/26 05:09:33 keithw Exp $ */
+/* $Id: t_vb_vertex.c,v 1.9 2001/05/30 10:01:41 keithw Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
- * Author:
+ * Authors:
* Keith Whitwell <keithw@valinux.com>
*/
struct vertex_stage_data {
GLvector4f eye;
GLvector4f clip;
- GLvector4f proj;
+ GLvector4f proj;
GLubyte *clipmask;
GLubyte ormask;
GLubyte andmask;
GLvector4f *save_projptr;
};
-#define VERTEX_STAGE_DATA(stage) ((struct vertex_stage_data *)stage->private)
+#define VERTEX_STAGE_DATA(stage) ((struct vertex_stage_data *)stage->privatePtr)
/* This function implements cliptesting for user-defined clip planes.
* The clipping of primitives to these planes is implemented in
- * t_render_clip.h.
+ * t_render_clip.h.
*/
#define USER_CLIPTEST(NAME, SZ) \
static void NAME( GLcontext *ctx, \
}
-USER_CLIPTEST(userclip2, 2)
-USER_CLIPTEST(userclip3, 3)
-USER_CLIPTEST(userclip4, 4)
+USER_CLIPTEST(userclip2, 2)
+USER_CLIPTEST(userclip3, 3)
+USER_CLIPTEST(userclip4, 4)
static void (*(usercliptab[5]))( GLcontext *,
GLvector4f *, GLubyte *,
- GLubyte *, GLubyte * ) =
+ GLubyte *, GLubyte * ) =
{
0,
0,
-static GLboolean run_vertex_stage( GLcontext *ctx,
+static GLboolean run_vertex_stage( GLcontext *ctx,
struct gl_pipeline_stage *stage )
{
- struct vertex_stage_data *store = (struct vertex_stage_data *)stage->private;
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
-
- if (stage->changed_inputs)
- {
-/* VB->ObjPtr->size = 4; */
+ 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) {
if (ctx->_NeedEyeCoords) {
- /* Seperate modelview and project transformations:
+ /* Separate modelview and project transformations:
*/
if (ctx->ModelView.type == MATRIX_IDENTITY)
VB->EyePtr = VB->ObjPtr;
else
- VB->EyePtr = TransformRaw( &store->eye, &ctx->ModelView,
+ VB->EyePtr = TransformRaw( &store->eye, &ctx->ModelView,
VB->ObjPtr);
if (ctx->ProjectionMatrix.type == MATRIX_IDENTITY)
VB->ClipPtr = VB->EyePtr;
else
- VB->ClipPtr = TransformRaw( &store->clip, &ctx->ProjectionMatrix,
+ VB->ClipPtr = TransformRaw( &store->clip, &ctx->ProjectionMatrix,
VB->EyePtr );
- }
- else
- {
+ }
+ else {
/* Combined modelviewproject transform:
*/
if (ctx->_ModelProjectMatrix.type == MATRIX_IDENTITY)
VB->ClipPtr = VB->ObjPtr;
else
- VB->ClipPtr = TransformRaw( &store->clip, &ctx->_ModelProjectMatrix,
+ 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 );
+ _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 );
+ }
+
/* Cliptest and perspective divide. Clip functions must clear
- * the clipmask.
+ * the clipmask.
*/
store->ormask = 0;
store->andmask = CLIP_ALL_BITS;
- VB->ProjectedClipPtr =
- gl_clip_tab[VB->ClipPtr->size]( VB->ClipPtr,
- &store->proj,
- store->clipmask,
- &store->ormask,
- &store->andmask );
+ if (tnl->NeedProjCoords) {
+ VB->ProjectedClipPtr =
+ _mesa_clip_tab[VB->ClipPtr->size]( VB->ClipPtr,
+ &store->proj,
+ store->clipmask,
+ &store->ormask,
+ &store->andmask );
+
+ } else {
+ VB->ProjectedClipPtr = 0;
+ _mesa_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr,
+ 0,
+ store->clipmask,
+ &store->ormask,
+ &store->andmask );
+ }
- if (store->andmask)
+ if (store->andmask)
return GL_FALSE;
if (store->andmask)
return GL_FALSE;
}
-
+
VB->ClipOrMask = store->ormask;
VB->ClipMask = store->clipmask;
if (VB->ClipPtr == VB->ObjPtr && (VB->importable_data & VERT_OBJ))
VB->importable_data |= VERT_CLIP;
- /* 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;
- }
-
store->save_eyeptr = VB->EyePtr;
store->save_clipptr = VB->ClipPtr;
store->save_projptr = VB->ProjectedClipPtr;
- }
+ }
else {
- /* Replay the sideeffects.
+ /* Replay the sideeffects.
*/
VB->EyePtr = store->save_eyeptr;
VB->ClipPtr = store->save_clipptr;
static void check_vertex( GLcontext *ctx, struct gl_pipeline_stage *stage )
{
- (void) ctx;
+ (void) ctx;
(void) stage;
}
-static GLboolean init_vertex_stage( GLcontext *ctx,
+static GLboolean init_vertex_stage( GLcontext *ctx,
struct gl_pipeline_stage *stage )
{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
struct vertex_stage_data *store;
GLuint size = VB->Size;
- stage->private = CALLOC(sizeof(*store));
+ stage->privatePtr = CALLOC(sizeof(*store));
store = VERTEX_STAGE_DATA(stage);
if (!store)
return GL_FALSE;
-
- gl_vector4f_alloc( &store->eye, 0, size, 32 );
- gl_vector4f_alloc( &store->clip, 0, size, 32 );
- gl_vector4f_alloc( &store->proj, 0, size, 32 );
+
+ _mesa_vector4f_alloc( &store->eye, 0, size, 32 );
+ _mesa_vector4f_alloc( &store->clip, 0, size, 32 );
+ _mesa_vector4f_alloc( &store->proj, 0, size, 32 );
store->clipmask = (GLubyte *) ALIGN_MALLOC(sizeof(GLubyte)*size, 32 );
if (!store->clipmask ||
- !store->eye.data ||
- !store->clip.data ||
- !store->proj.data)
+ !store->eye.data ||
+ !store->clip.data ||
+ !store->proj.data)
return GL_FALSE;
/* Now run the stage.
struct vertex_stage_data *store = VERTEX_STAGE_DATA(stage);
if (store) {
- gl_vector4f_free( &store->eye );
- gl_vector4f_free( &store->clip );
- gl_vector4f_free( &store->proj );
+ _mesa_vector4f_free( &store->eye );
+ _mesa_vector4f_free( &store->clip );
+ _mesa_vector4f_free( &store->proj );
ALIGN_FREE( store->clipmask );
FREE(store);
- stage->private = 0;
+ stage->privatePtr = NULL;
stage->run = init_vertex_stage;
}
}
-const struct gl_pipeline_stage _tnl_vertex_transform_stage =
-{
+const struct gl_pipeline_stage _tnl_vertex_transform_stage =
+{
"modelview/project/cliptest/divide",
0, /* re-check -- always on */
+ _MESA_NEW_NEED_EYE_COORDS |
_NEW_MODELVIEW|
_NEW_PROJECTION|
_NEW_TRANSFORM, /* re-run */
check_vertex, /* check */
init_vertex_stage /* run -- initially set to init */
};
-
-
projects / mesa.git / blobdiff