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Diffstat (limited to 'src/mesa/tnl/t_vb_vertex.c')
-rw-r--r--src/mesa/tnl/t_vb_vertex.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/src/mesa/tnl/t_vb_vertex.c b/src/mesa/tnl/t_vb_vertex.c
deleted file mode 100644
index 053900e0033..00000000000
--- a/src/mesa/tnl/t_vb_vertex.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/*
- * Mesa 3-D graphics library
- *
- * Copyright (C) 1999-2006 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"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN 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.
- *
- * Authors:
- * Keith Whitwell <keithw@vmware.com>
- */
-
-
-#include "main/glheader.h"
-#include "main/macros.h"
-#include "main/mtypes.h"
-
-#include "math/m_xform.h"
-
-#include "util/bitscan.h"
-#include "util/u_memory.h"
-
-#include "t_context.h"
-#include "t_pipeline.h"
-
-
-
-struct vertex_stage_data {
- GLvector4f eye;
- GLvector4f clip;
- GLvector4f proj;
- GLubyte *clipmask;
- GLubyte ormask;
- GLubyte andmask;
-};
-
-#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.
- */
-#define USER_CLIPTEST(NAME, SZ) \
-static void NAME( struct gl_context *ctx, \
- GLvector4f *clip, \
- GLubyte *clipmask, \
- GLubyte *clipormask, \
- GLubyte *clipandmask ) \
-{ \
- GLbitfield mask = ctx->Transform.ClipPlanesEnabled; \
- while (mask) { \
- const int p = u_bit_scan(&mask); \
- GLuint nr, i; \
- const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; \
- const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; \
- const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; \
- const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; \
- GLfloat *coord = (GLfloat *)clip->data; \
- GLuint stride = clip->stride; \
- GLuint count = clip->count; \
- \
- for (nr = 0, i = 0 ; i < count ; i++) { \
- GLfloat dp = coord[0] * a + coord[1] * b; \
- if (SZ > 2) dp += coord[2] * c; \
- if (SZ > 3) dp += coord[3] * d; else dp += d; \
- \
- if (dp < 0) { \
- nr++; \
- clipmask[i] |= CLIP_USER_BIT; \
- } \
- \
- STRIDE_F(coord, stride); \
- } \
- \
- if (nr > 0) { \
- *clipormask |= CLIP_USER_BIT; \
- if (nr == count) { \
- *clipandmask |= CLIP_USER_BIT; \
- return; \
- } \
- } \
- } \
-}
-
-
-USER_CLIPTEST(userclip2, 2)
-USER_CLIPTEST(userclip3, 3)
-USER_CLIPTEST(userclip4, 4)
-
-static void (*(usercliptab[5]))( struct gl_context *,
- GLvector4f *, GLubyte *,
- GLubyte *, GLubyte * ) =
-{
- NULL,
- NULL,
- userclip2,
- userclip3,
- userclip4
-};
-
-
-void
-tnl_clip_prepare(struct gl_context *ctx)
-{
- /* Neither the x86 nor sparc asm cliptest functions have been updated
- * for ARB_depth_clamp, so force the C paths.
- */
- if (ctx->Transform.DepthClampNear && ctx->Transform.DepthClampFar) {
- static GLboolean c_funcs_installed = GL_FALSE;
- if (!c_funcs_installed) {
- init_c_cliptest();
- c_funcs_installed = GL_TRUE;
- }
- }
-}
-
-
-
-static GLboolean run_vertex_stage( struct gl_context *ctx,
- 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 (ctx->VertexProgram._Current)
- return GL_TRUE;
-
- tnl_clip_prepare(ctx);
-
- if (ctx->_NeedEyeCoords) {
- /* Separate modelview transformation:
- * Use combined ModelProject to avoid some depth artifacts
- */
- if (ctx->ModelviewMatrixStack.Top->type == MATRIX_IDENTITY)
- VB->EyePtr = VB->AttribPtr[_TNL_ATTRIB_POS];
- else
- VB->EyePtr = TransformRaw( &store->eye,
- ctx->ModelviewMatrixStack.Top,
- VB->AttribPtr[_TNL_ATTRIB_POS]);
- }
-
- /* make sure the inverse is up to date */
- _math_matrix_analyse(&ctx->_ModelProjectMatrix);
-
- VB->ClipPtr = TransformRaw( &store->clip,
- &ctx->_ModelProjectMatrix,
- VB->AttribPtr[_TNL_ATTRIB_POS] );
-
- /* Drivers expect this to be clean to element 4...
- */
- switch (VB->ClipPtr->size) {
- case 1:
- /* impossible */
- case 2:
- _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 );
- FALLTHROUGH;
- case 3:
- _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 );
- FALLTHROUGH;
- case 4:
- break;
- }
-
-
- /* Cliptest and perspective divide. Clip functions must clear
- * the clipmask.
- */
- store->ormask = 0;
- store->andmask = CLIP_FRUSTUM_BITS;
-
- if (tnl->NeedNdcCoords) {
- VB->NdcPtr =
- _mesa_clip_tab[VB->ClipPtr->size]( VB->ClipPtr,
- &store->proj,
- store->clipmask,
- &store->ormask,
- &store->andmask,
- !(ctx->Transform.DepthClampNear &&
- ctx->Transform.DepthClampFar) );
- }
- else {
- VB->NdcPtr = NULL;
- _mesa_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr,
- NULL,
- store->clipmask,
- &store->ormask,
- &store->andmask,
- !(ctx->Transform.DepthClampNear &&
- ctx->Transform.DepthClampFar) );
- }
-
- if (store->andmask)
- return GL_FALSE;
-
-
- /* Test userclip planes. This contributes to VB->ClipMask, so
- * is essentially required to be in this stage.
- */
- if (ctx->Transform.ClipPlanesEnabled) {
- usercliptab[VB->ClipPtr->size]( ctx,
- VB->ClipPtr,
- store->clipmask,
- &store->ormask,
- &store->andmask );
-
- if (store->andmask)
- return GL_FALSE;
- }
-
- VB->ClipAndMask = store->andmask;
- VB->ClipOrMask = store->ormask;
- VB->ClipMask = store->clipmask;
-
- return GL_TRUE;
-}
-
-
-static GLboolean init_vertex_stage( struct gl_context *ctx,
- struct tnl_pipeline_stage *stage )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- struct vertex_stage_data *store;
- GLuint size = VB->Size;
-
- stage->privatePtr = calloc(1, sizeof(*store));
- store = VERTEX_STAGE_DATA(stage);
- if (!store)
- return GL_FALSE;
-
- _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 = align_malloc(sizeof(GLubyte)*size, 32 );
-
- if (!store->clipmask ||
- !store->eye.data ||
- !store->clip.data ||
- !store->proj.data)
- return GL_FALSE;
-
- return GL_TRUE;
-}
-
-static void dtr( struct tnl_pipeline_stage *stage )
-{
- struct vertex_stage_data *store = VERTEX_STAGE_DATA(stage);
-
- if (store) {
- _mesa_vector4f_free( &store->eye );
- _mesa_vector4f_free( &store->clip );
- _mesa_vector4f_free( &store->proj );
- align_free( store->clipmask );
- free(store);
- stage->privatePtr = NULL;
- stage->run = init_vertex_stage;
- }
-}
-
-
-const struct tnl_pipeline_stage _tnl_vertex_transform_stage =
-{
- "modelview/project/cliptest/divide",
- NULL, /* private data */
- init_vertex_stage,
- dtr, /* destructor */
- NULL,
- run_vertex_stage /* run -- initially set to init */
-};