| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 1999-2004 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/context.h" |
| #include "main/macros.h" |
| #include "math/m_eval.h" |
| #include "main/dispatch.h" |
| #include "vbo_exec.h" |
| |
| |
| static void clear_active_eval1( struct vbo_exec_context *exec, GLuint attr ) |
| { |
| assert(attr < ARRAY_SIZE(exec->eval.map1)); |
| exec->eval.map1[attr].map = NULL; |
| } |
| |
| static void clear_active_eval2( struct vbo_exec_context *exec, GLuint attr ) |
| { |
| assert(attr < ARRAY_SIZE(exec->eval.map2)); |
| exec->eval.map2[attr].map = NULL; |
| } |
| |
| static void set_active_eval1( struct vbo_exec_context *exec, GLuint attr, GLuint dim, |
| struct gl_1d_map *map ) |
| { |
| assert(attr < ARRAY_SIZE(exec->eval.map1)); |
| if (!exec->eval.map1[attr].map) { |
| exec->eval.map1[attr].map = map; |
| exec->eval.map1[attr].sz = dim; |
| } |
| } |
| |
| static void set_active_eval2( struct vbo_exec_context *exec, GLuint attr, GLuint dim, |
| struct gl_2d_map *map ) |
| { |
| assert(attr < ARRAY_SIZE(exec->eval.map2)); |
| if (!exec->eval.map2[attr].map) { |
| exec->eval.map2[attr].map = map; |
| exec->eval.map2[attr].sz = dim; |
| } |
| } |
| |
| void vbo_exec_eval_update( struct vbo_exec_context *exec ) |
| { |
| struct gl_context *ctx = exec->ctx; |
| GLuint attr; |
| |
| /* Vertex program maps have priority over conventional attribs */ |
| |
| for (attr = 0; attr < VBO_ATTRIB_FIRST_MATERIAL; attr++) { |
| clear_active_eval1( exec, attr ); |
| clear_active_eval2( exec, attr ); |
| } |
| |
| if (ctx->Eval.Map1Color4) |
| set_active_eval1( exec, VBO_ATTRIB_COLOR0, 4, &ctx->EvalMap.Map1Color4 ); |
| |
| if (ctx->Eval.Map2Color4) |
| set_active_eval2( exec, VBO_ATTRIB_COLOR0, 4, &ctx->EvalMap.Map2Color4 ); |
| |
| if (ctx->Eval.Map1TextureCoord4) |
| set_active_eval1( exec, VBO_ATTRIB_TEX0, 4, &ctx->EvalMap.Map1Texture4 ); |
| else if (ctx->Eval.Map1TextureCoord3) |
| set_active_eval1( exec, VBO_ATTRIB_TEX0, 3, &ctx->EvalMap.Map1Texture3 ); |
| else if (ctx->Eval.Map1TextureCoord2) |
| set_active_eval1( exec, VBO_ATTRIB_TEX0, 2, &ctx->EvalMap.Map1Texture2 ); |
| else if (ctx->Eval.Map1TextureCoord1) |
| set_active_eval1( exec, VBO_ATTRIB_TEX0, 1, &ctx->EvalMap.Map1Texture1 ); |
| |
| if (ctx->Eval.Map2TextureCoord4) |
| set_active_eval2( exec, VBO_ATTRIB_TEX0, 4, &ctx->EvalMap.Map2Texture4 ); |
| else if (ctx->Eval.Map2TextureCoord3) |
| set_active_eval2( exec, VBO_ATTRIB_TEX0, 3, &ctx->EvalMap.Map2Texture3 ); |
| else if (ctx->Eval.Map2TextureCoord2) |
| set_active_eval2( exec, VBO_ATTRIB_TEX0, 2, &ctx->EvalMap.Map2Texture2 ); |
| else if (ctx->Eval.Map2TextureCoord1) |
| set_active_eval2( exec, VBO_ATTRIB_TEX0, 1, &ctx->EvalMap.Map2Texture1 ); |
| |
| if (ctx->Eval.Map1Normal) |
| set_active_eval1( exec, VBO_ATTRIB_NORMAL, 3, &ctx->EvalMap.Map1Normal ); |
| |
| if (ctx->Eval.Map2Normal) |
| set_active_eval2( exec, VBO_ATTRIB_NORMAL, 3, &ctx->EvalMap.Map2Normal ); |
| |
| if (ctx->Eval.Map1Vertex4) |
| set_active_eval1( exec, VBO_ATTRIB_POS, 4, &ctx->EvalMap.Map1Vertex4 ); |
| else if (ctx->Eval.Map1Vertex3) |
| set_active_eval1( exec, VBO_ATTRIB_POS, 3, &ctx->EvalMap.Map1Vertex3 ); |
| |
| if (ctx->Eval.Map2Vertex4) |
| set_active_eval2( exec, VBO_ATTRIB_POS, 4, &ctx->EvalMap.Map2Vertex4 ); |
| else if (ctx->Eval.Map2Vertex3) |
| set_active_eval2( exec, VBO_ATTRIB_POS, 3, &ctx->EvalMap.Map2Vertex3 ); |
| |
| exec->eval.recalculate_maps = GL_FALSE; |
| } |
| |
| |
| |
| void vbo_exec_do_EvalCoord1f(struct vbo_exec_context *exec, GLfloat u) |
| { |
| GLuint attr; |
| |
| for (attr = 1; attr <= VBO_ATTRIB_TEX7; attr++) { |
| struct gl_1d_map *map = exec->eval.map1[attr].map; |
| if (map) { |
| GLfloat uu = (u - map->u1) * map->du; |
| fi_type data[4]; |
| |
| ASSIGN_4V(data, FLOAT_AS_UNION(0), FLOAT_AS_UNION(0), |
| FLOAT_AS_UNION(0), FLOAT_AS_UNION(1)); |
| |
| _math_horner_bezier_curve(map->Points, &data[0].f, uu, |
| exec->eval.map1[attr].sz, |
| map->Order); |
| |
| COPY_SZ_4V( exec->vtx.attrptr[attr], |
| exec->vtx.attr[attr].size, |
| data ); |
| } |
| } |
| |
| /** Vertex -- EvalCoord1f is a noop if this map not enabled: |
| **/ |
| if (exec->eval.map1[0].map) { |
| struct gl_1d_map *map = exec->eval.map1[0].map; |
| GLfloat uu = (u - map->u1) * map->du; |
| GLfloat vertex[4]; |
| |
| ASSIGN_4V(vertex, 0, 0, 0, 1); |
| |
| _math_horner_bezier_curve(map->Points, vertex, uu, |
| exec->eval.map1[0].sz, |
| map->Order); |
| |
| if (exec->eval.map1[0].sz == 4) |
| CALL_Vertex4fv(exec->ctx->CurrentServerDispatch, ( vertex )); |
| else |
| CALL_Vertex3fv(exec->ctx->CurrentServerDispatch, ( vertex )); |
| } |
| } |
| |
| |
| |
| void vbo_exec_do_EvalCoord2f( struct vbo_exec_context *exec, |
| GLfloat u, GLfloat v ) |
| { |
| GLuint attr; |
| |
| for (attr = 1; attr <= VBO_ATTRIB_TEX7; attr++) { |
| struct gl_2d_map *map = exec->eval.map2[attr].map; |
| if (map) { |
| GLfloat uu = (u - map->u1) * map->du; |
| GLfloat vv = (v - map->v1) * map->dv; |
| fi_type data[4]; |
| |
| ASSIGN_4V(data, FLOAT_AS_UNION(0), FLOAT_AS_UNION(0), |
| FLOAT_AS_UNION(0), FLOAT_AS_UNION(1)); |
| |
| _math_horner_bezier_surf(map->Points, |
| &data[0].f, |
| uu, vv, |
| exec->eval.map2[attr].sz, |
| map->Uorder, map->Vorder); |
| |
| COPY_SZ_4V( exec->vtx.attrptr[attr], |
| exec->vtx.attr[attr].size, |
| data ); |
| } |
| } |
| |
| /** Vertex -- EvalCoord2f is a noop if this map not enabled: |
| **/ |
| if (exec->eval.map2[0].map) { |
| struct gl_2d_map *map = exec->eval.map2[0].map; |
| GLfloat uu = (u - map->u1) * map->du; |
| GLfloat vv = (v - map->v1) * map->dv; |
| GLfloat vertex[4]; |
| |
| ASSIGN_4V(vertex, 0, 0, 0, 1); |
| |
| if (exec->ctx->Eval.AutoNormal) { |
| fi_type normal[4]; |
| GLfloat du[4], dv[4]; |
| |
| _math_de_casteljau_surf(map->Points, vertex, du, dv, uu, vv, |
| exec->eval.map2[0].sz, |
| map->Uorder, map->Vorder); |
| |
| if (exec->eval.map2[0].sz == 4) { |
| du[0] = du[0]*vertex[3] - du[3]*vertex[0]; |
| du[1] = du[1]*vertex[3] - du[3]*vertex[1]; |
| du[2] = du[2]*vertex[3] - du[3]*vertex[2]; |
| |
| dv[0] = dv[0]*vertex[3] - dv[3]*vertex[0]; |
| dv[1] = dv[1]*vertex[3] - dv[3]*vertex[1]; |
| dv[2] = dv[2]*vertex[3] - dv[3]*vertex[2]; |
| } |
| |
| |
| CROSS3(&normal[0].f, du, dv); |
| NORMALIZE_3FV(&normal[0].f); |
| normal[3] = FLOAT_AS_UNION(1.0); |
| |
| COPY_SZ_4V( exec->vtx.attrptr[VBO_ATTRIB_NORMAL], |
| exec->vtx.attr[VBO_ATTRIB_NORMAL].size, |
| normal ); |
| |
| } |
| else { |
| _math_horner_bezier_surf(map->Points, vertex, uu, vv, |
| exec->eval.map2[0].sz, |
| map->Uorder, map->Vorder); |
| } |
| |
| if (exec->vtx.attr[VBO_ATTRIB_POS].size == 4) |
| CALL_Vertex4fv(exec->ctx->CurrentServerDispatch, ( vertex )); |
| else |
| CALL_Vertex3fv(exec->ctx->CurrentServerDispatch, ( vertex )); |
| } |
| } |
| |
| |