diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/tnl/t_vb_light.c')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/tnl/t_vb_light.c | 362 |
1 files changed, 0 insertions, 362 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_light.c b/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_light.c deleted file mode 100644 index 1deab4d43..000000000 --- a/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_light.c +++ /dev/null @@ -1,362 +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. - */ - - - -#include "glheader.h" -#include "colormac.h" -#include "light.h" -#include "macros.h" -#include "imports.h" -#include "simple_list.h" -#include "mtypes.h" - -#include "math/m_translate.h" - -#include "t_context.h" -#include "t_pipeline.h" - -#define LIGHT_TWOSIDE 0x1 -#define LIGHT_MATERIAL 0x2 -#define MAX_LIGHT_FUNC 0x4 - -typedef void (*light_func)( GLcontext *ctx, - struct vertex_buffer *VB, - struct tnl_pipeline_stage *stage, - GLvector4f *input ); - -/** - * Information for updating current material attributes from vertex color, - * for GL_COLOR_MATERIAL. - */ -struct material_cursor { - const GLfloat *ptr; /* points to src vertex color (in VB array) */ - GLuint stride; /* stride to next vertex color (bytes) */ - GLfloat *current; /* points to material attribute to update */ - GLuint size; /* vertex/color size: 1, 2, 3 or 4 */ -}; - -/** - * Data private to this pipeline stage. - */ -struct light_stage_data { - GLvector4f Input; - GLvector4f LitColor[2]; - GLvector4f LitSecondary[2]; - GLvector4f LitIndex[2]; - light_func *light_func_tab; - - struct material_cursor mat[MAT_ATTRIB_MAX]; - GLuint mat_count; - GLuint mat_bitmask; -}; - - -#define LIGHT_STAGE_DATA(stage) ((struct light_stage_data *)(stage->privatePtr)) - - - -/** - * In the case of colormaterial, the effected material attributes - * should already have been bound to point to the incoming color data, - * prior to running the pipeline. - * This function copies the vertex's color to the material attributes - * which are tracking glColor. - * It's called per-vertex in the lighting loop. - */ -static void -update_materials(GLcontext *ctx, struct light_stage_data *store) -{ - GLuint i; - - for (i = 0 ; i < store->mat_count ; i++) { - /* update the material */ - COPY_CLEAN_4V(store->mat[i].current, store->mat[i].size, store->mat[i].ptr); - /* increment src vertex color pointer */ - STRIDE_F(store->mat[i].ptr, store->mat[i].stride); - } - - /* recompute derived light/material values */ - _mesa_update_material( ctx, store->mat_bitmask ); - /* XXX we should only call this if we're tracking/changing the specular - * exponent. - */ - _mesa_validate_all_lighting_tables( ctx ); -} - - -/** - * Prepare things prior to running the lighting stage. - * Return number of material attributes which will track vertex color. - */ -static GLuint -prepare_materials(GLcontext *ctx, - struct vertex_buffer *VB, struct light_stage_data *store) -{ - GLuint i; - - store->mat_count = 0; - store->mat_bitmask = 0; - - /* Examine the ColorMaterialBitmask to determine which materials - * track vertex color. Override the material attribute's pointer - * with the color pointer for each one. - */ - if (ctx->Light.ColorMaterialEnabled) { - const GLuint bitmask = ctx->Light.ColorMaterialBitmask; - for (i = 0 ; i < MAT_ATTRIB_MAX ; i++) - if (bitmask & (1<<i)) - VB->AttribPtr[_TNL_ATTRIB_MAT_FRONT_AMBIENT + i] = VB->ColorPtr[0]; - } - - /* Now, for each material attribute that's tracking vertex color, save - * some values (ptr, stride, size, current) that we'll need in - * update_materials(), above, that'll actually copy the vertex color to - * the material attribute(s). - */ - for (i = _TNL_ATTRIB_MAT_FRONT_AMBIENT ; i < _TNL_ATTRIB_INDEX ; i++) { - if (VB->AttribPtr[i]->stride) { - const GLuint j = store->mat_count++; - const GLuint attr = i - _TNL_ATTRIB_MAT_FRONT_AMBIENT; - store->mat[j].ptr = VB->AttribPtr[i]->start; - store->mat[j].stride = VB->AttribPtr[i]->stride; - store->mat[j].size = VB->AttribPtr[i]->size; - store->mat[j].current = ctx->Light.Material.Attrib[attr]; - store->mat_bitmask |= (1<<attr); - } - } - - /* FIXME: Is this already done? - */ - _mesa_update_material( ctx, ~0 ); - _mesa_validate_all_lighting_tables( ctx ); - - return store->mat_count; -} - -/* Tables for all the shading functions. - */ -static light_func _tnl_light_tab[MAX_LIGHT_FUNC]; -static light_func _tnl_light_fast_tab[MAX_LIGHT_FUNC]; -static light_func _tnl_light_fast_single_tab[MAX_LIGHT_FUNC]; -static light_func _tnl_light_spec_tab[MAX_LIGHT_FUNC]; -static light_func _tnl_light_ci_tab[MAX_LIGHT_FUNC]; - -#define TAG(x) x -#define IDX (0) -#include "t_vb_lighttmp.h" - -#define TAG(x) x##_twoside -#define IDX (LIGHT_TWOSIDE) -#include "t_vb_lighttmp.h" - -#define TAG(x) x##_material -#define IDX (LIGHT_MATERIAL) -#include "t_vb_lighttmp.h" - -#define TAG(x) x##_twoside_material -#define IDX (LIGHT_TWOSIDE|LIGHT_MATERIAL) -#include "t_vb_lighttmp.h" - - -static void init_lighting_tables( void ) -{ - static int done; - - if (!done) { - init_light_tab(); - init_light_tab_twoside(); - init_light_tab_material(); - init_light_tab_twoside_material(); - done = 1; - } -} - - -static GLboolean run_lighting( GLcontext *ctx, - struct tnl_pipeline_stage *stage ) -{ - struct light_stage_data *store = LIGHT_STAGE_DATA(stage); - TNLcontext *tnl = TNL_CONTEXT(ctx); - struct vertex_buffer *VB = &tnl->vb; - GLvector4f *input = ctx->_NeedEyeCoords ? VB->EyePtr : VB->ObjPtr; - GLuint idx; - - if (!ctx->Light.Enabled || ctx->VertexProgram._Enabled) - return GL_TRUE; - - /* Make sure we can talk about position x,y and z: - */ - if (input->size <= 2 && input == VB->ObjPtr) { - - _math_trans_4f( store->Input.data, - VB->ObjPtr->data, - VB->ObjPtr->stride, - GL_FLOAT, - VB->ObjPtr->size, - 0, - VB->Count ); - - if (input->size <= 2) { - /* Clean z. - */ - _mesa_vector4f_clean_elem(&store->Input, VB->Count, 2); - } - - if (input->size <= 1) { - /* Clean y. - */ - _mesa_vector4f_clean_elem(&store->Input, VB->Count, 1); - } - - input = &store->Input; - } - - idx = 0; - - if (prepare_materials( ctx, VB, store )) - idx |= LIGHT_MATERIAL; - - if (ctx->Light.Model.TwoSide) - idx |= LIGHT_TWOSIDE; - - /* The individual functions know about replaying side-effects - * vs. full re-execution. - */ - store->light_func_tab[idx]( ctx, VB, stage, input ); - - VB->AttribPtr[_TNL_ATTRIB_COLOR0] = VB->ColorPtr[0]; - VB->AttribPtr[_TNL_ATTRIB_COLOR1] = VB->SecondaryColorPtr[0]; - VB->AttribPtr[_TNL_ATTRIB_INDEX] = VB->IndexPtr[0]; - - return GL_TRUE; -} - - -/* Called in place of do_lighting when the light table may have changed. - */ -static void validate_lighting( GLcontext *ctx, - struct tnl_pipeline_stage *stage ) -{ - light_func *tab; - - if (!ctx->Light.Enabled || ctx->VertexProgram._Enabled) - return; - - if (ctx->Visual.rgbMode) { - if (ctx->Light._NeedVertices) { - if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR) - tab = _tnl_light_spec_tab; - else - tab = _tnl_light_tab; - } - else { - if (ctx->Light.EnabledList.next == ctx->Light.EnabledList.prev) - tab = _tnl_light_fast_single_tab; - else - tab = _tnl_light_fast_tab; - } - } - else - tab = _tnl_light_ci_tab; - - - LIGHT_STAGE_DATA(stage)->light_func_tab = tab; - - /* This and the above should only be done on _NEW_LIGHT: - */ - TNL_CONTEXT(ctx)->Driver.NotifyMaterialChange( ctx ); -} - - - -/* Called the first time stage->run is called. In effect, don't - * allocate data until the first time the stage is run. - */ -static GLboolean init_lighting( GLcontext *ctx, - struct tnl_pipeline_stage *stage ) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - struct light_stage_data *store; - GLuint size = tnl->vb.Size; - - stage->privatePtr = MALLOC(sizeof(*store)); - store = LIGHT_STAGE_DATA(stage); - if (!store) - return GL_FALSE; - - /* Do onetime init. - */ - init_lighting_tables(); - - _mesa_vector4f_alloc( &store->Input, 0, size, 32 ); - _mesa_vector4f_alloc( &store->LitColor[0], 0, size, 32 ); - _mesa_vector4f_alloc( &store->LitColor[1], 0, size, 32 ); - _mesa_vector4f_alloc( &store->LitSecondary[0], 0, size, 32 ); - _mesa_vector4f_alloc( &store->LitSecondary[1], 0, size, 32 ); - _mesa_vector4f_alloc( &store->LitIndex[0], 0, size, 32 ); - _mesa_vector4f_alloc( &store->LitIndex[1], 0, size, 32 ); - - store->LitColor[0].size = 4; - store->LitColor[1].size = 4; - store->LitSecondary[0].size = 3; - store->LitSecondary[1].size = 3; - - store->LitIndex[0].size = 1; - store->LitIndex[0].stride = sizeof(GLfloat); - store->LitIndex[1].size = 1; - store->LitIndex[1].stride = sizeof(GLfloat); - - return GL_TRUE; -} - - - - -static void dtr( struct tnl_pipeline_stage *stage ) -{ - struct light_stage_data *store = LIGHT_STAGE_DATA(stage); - - if (store) { - _mesa_vector4f_free( &store->Input ); - _mesa_vector4f_free( &store->LitColor[0] ); - _mesa_vector4f_free( &store->LitColor[1] ); - _mesa_vector4f_free( &store->LitSecondary[0] ); - _mesa_vector4f_free( &store->LitSecondary[1] ); - _mesa_vector4f_free( &store->LitIndex[0] ); - _mesa_vector4f_free( &store->LitIndex[1] ); - FREE( store ); - stage->privatePtr = NULL; - } -} - -const struct tnl_pipeline_stage _tnl_lighting_stage = -{ - "lighting", /* name */ - NULL, /* private_data */ - init_lighting, - dtr, /* destroy */ - validate_lighting, - run_lighting -}; |