diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/tnl/t_vb_normals.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/tnl/t_vb_normals.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_normals.c b/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_normals.c deleted file mode 100644 index 7ac33f8be..000000000 --- a/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_normals.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 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 - * BRIAN PAUL 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 <keith@tungstengraphics.com> - */ - - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "macros.h" -#include "imports.h" -#include "mtypes.h" - -#include "math/m_xform.h" - -#include "t_context.h" -#include "t_pipeline.h" - - -struct normal_stage_data { - normal_func NormalTransform; - GLvector4f normal; -}; - -#define NORMAL_STAGE_DATA(stage) ((struct normal_stage_data *)stage->privatePtr) - - -static GLboolean -run_normal_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) -{ - struct normal_stage_data *store = NORMAL_STAGE_DATA(stage); - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - const GLfloat *lengths; - - if (!store->NormalTransform) - return GL_TRUE; - - /* We can only use the display list's saved normal lengths if we've - * got a transformation matrix with uniform scaling. - */ - if (_math_matrix_is_general_scale(ctx->ModelviewMatrixStack.Top)) - lengths = NULL; - else - lengths = VB->NormalLengthPtr; - - store->NormalTransform( ctx->ModelviewMatrixStack.Top, - ctx->_ModelViewInvScale, - VB->NormalPtr, /* input normals */ - lengths, - &store->normal ); /* resulting normals */ - - if (VB->NormalPtr->count > 1) { - store->normal.stride = 4 * sizeof(GLfloat); - } - else { - store->normal.stride = 0; - } - - VB->NormalPtr = &store->normal; - VB->AttribPtr[_TNL_ATTRIB_NORMAL] = VB->NormalPtr; - - VB->NormalLengthPtr = NULL; /* no longer valid */ - return GL_TRUE; -} - - -/** - * Examine current GL state and set the store->NormalTransform pointer - * to point to the appropriate normal transformation routine. - */ -static void -validate_normal_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) -{ - struct normal_stage_data *store = NORMAL_STAGE_DATA(stage); - - if (ctx->VertexProgram._Enabled || - (!ctx->Light.Enabled && - !(ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS))) { - store->NormalTransform = NULL; - return; - } - - if (ctx->_NeedEyeCoords) { - /* Eye coordinates are needed, for whatever reasons. - * Do lighting in eye coordinates, as the GL spec says. - */ - GLuint transform = NORM_TRANSFORM_NO_ROT; - - if (_math_matrix_has_rotation(ctx->ModelviewMatrixStack.Top)) { - /* need to do full (3x3) matrix transform */ - transform = NORM_TRANSFORM; - } - - if (ctx->Transform.Normalize) { - store->NormalTransform = _mesa_normal_tab[transform | NORM_NORMALIZE]; - } - else if (ctx->Transform.RescaleNormals && - ctx->_ModelViewInvScale != 1.0) { - store->NormalTransform = _mesa_normal_tab[transform | NORM_RESCALE]; - } - else { - store->NormalTransform = _mesa_normal_tab[transform]; - } - } - else { - /* We don't need eye coordinates. - * Do lighting in object coordinates. Thus, we don't need to fully - * transform normal vectors (just leave them in object coordinates) - * but we still need to do normalization/rescaling if enabled. - */ - if (ctx->Transform.Normalize) { - store->NormalTransform = _mesa_normal_tab[NORM_NORMALIZE]; - } - else if (!ctx->Transform.RescaleNormals && - ctx->_ModelViewInvScale != 1.0) { - store->NormalTransform = _mesa_normal_tab[NORM_RESCALE]; - } - else { - store->NormalTransform = NULL; - } - } -} - - -/** - * Allocate stage's private data (storage for transformed normals). - */ -static GLboolean -alloc_normal_data(GLcontext *ctx, struct tnl_pipeline_stage *stage) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - struct normal_stage_data *store; - - stage->privatePtr = _mesa_malloc(sizeof(*store)); - store = NORMAL_STAGE_DATA(stage); - if (!store) - return GL_FALSE; - - _mesa_vector4f_alloc( &store->normal, 0, tnl->vb.Size, 32 ); - return GL_TRUE; -} - - -/** - * Free stage's private data. - */ -static void -free_normal_data(struct tnl_pipeline_stage *stage) -{ - struct normal_stage_data *store = NORMAL_STAGE_DATA(stage); - if (store) { - _mesa_vector4f_free( &store->normal ); - _mesa_free( store ); - stage->privatePtr = NULL; - } -} - - -const struct tnl_pipeline_stage _tnl_normal_transform_stage = -{ - "normal transform", /* name */ - NULL, /* privatePtr */ - alloc_normal_data, /* create */ - free_normal_data, /* destroy */ - validate_normal_stage, /* validate */ - run_normal_stage /* run */ -}; |