From 51c0c71811508b6658e0d5dcff8426b618322a73 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Sat, 28 Apr 2001 08:39:17 +0000 Subject: Support for floating point color representation in tnl module. --- src/mesa/tnl/t_imm_eval.c | 127 ++++++++++++++++++++++++---------------------- 1 file changed, 66 insertions(+), 61 deletions(-) (limited to 'src/mesa/tnl/t_imm_eval.c') diff --git a/src/mesa/tnl/t_imm_eval.c b/src/mesa/tnl/t_imm_eval.c index 21529a42b5..d06f702e5b 100644 --- a/src/mesa/tnl/t_imm_eval.c +++ b/src/mesa/tnl/t_imm_eval.c @@ -1,4 +1,4 @@ -/* $Id: t_imm_eval.c,v 1.7 2001/04/26 14:53:48 keithw Exp $ */ +/* $Id: t_imm_eval.c,v 1.8 2001/04/28 08:39:18 keithw Exp $ */ /* * Mesa 3-D graphics library @@ -85,10 +85,10 @@ static const GLubyte dirty_flags[5] = { static void eval1_4f( GLvector4f *dest, - GLfloat coord[][4], - const GLuint *flags, - GLuint dimension, - struct gl_1d_map *map ) + GLfloat coord[][4], + const GLuint *flags, + GLuint dimension, + struct gl_1d_map *map ) { const GLfloat u1 = map->u1; const GLfloat du = map->du; @@ -107,6 +107,31 @@ static void eval1_4f( GLvector4f *dest, dest->flags |= dirty_flags[dimension]; } +static void eval1_4f_ca( struct gl_client_array *dest, + GLfloat coord[][4], + const GLuint *flags, + GLuint dimension, + struct gl_1d_map *map ) +{ + const GLfloat u1 = map->u1; + const GLfloat du = map->du; + GLfloat (*to)[4] = (GLfloat (*)[4])dest->Ptr; + GLuint i; + + ASSERT(dest->Type == GL_FLOAT); + ASSERT(dest->StrideB == 4 * sizeof(GLfloat)); + + for (i = 0 ; !(flags[i] & VERT_END_VB) ; i++) + if (flags[i] & (VERT_EVAL_C1|VERT_EVAL_P1)) { + GLfloat u = (coord[i][0] - u1) * du; + ASSIGN_4V(to[i], 0,0,0,1); + _math_horner_bezier_curve(map->Points, to[i], u, + dimension, map->Order); + } + + dest->Size = MAX2(dest->Size, dimension); +} + static void eval1_1ui( GLvector1ui *dest, GLfloat coord[][4], @@ -145,25 +170,6 @@ static void eval1_norm( GLvector3f *dest, } } -static void eval1_color( GLvector4chan *dest, - GLfloat coord[][4], - const GLuint *flags, - struct gl_1d_map *map ) -{ - const GLfloat u1 = map->u1; - const GLfloat du = map->du; - GLchan (*to)[4] = dest->data; - GLuint i; - - for (i = 0 ; !(flags[i] & VERT_END_VB) ; i++) { - if (flags[i] & (VERT_EVAL_C1|VERT_EVAL_P1)) { - GLfloat u = (coord[i][0] - u1) * du; - GLfloat fcolor[4]; - _math_horner_bezier_curve(map->Points, fcolor, u, 4, map->Order); - UNCLAMPED_FLOAT_TO_RGBA_CHAN(to[i], fcolor); - } - } -} @@ -227,6 +233,33 @@ static void eval2_4f( GLvector4f *dest, dest->flags |= dirty_flags[dimension]; } +static void eval2_4f_ca( struct gl_client_array *dest, + GLfloat coord[][4], + const GLuint *flags, + GLuint dimension, + struct gl_2d_map *map ) +{ + const GLfloat u1 = map->u1; + const GLfloat du = map->du; + const GLfloat v1 = map->v1; + const GLfloat dv = map->dv; + GLfloat (*to)[4] = (GLfloat (*)[4])dest->Ptr; + GLuint i; + + ASSERT(dest->Type == GL_FLOAT); + ASSERT(dest->StrideB == 4 * sizeof(GLfloat)); + + for (i = 0 ; !(flags[i] & VERT_END_VB) ; i++) + if (flags[i] & (VERT_EVAL_C2|VERT_EVAL_P2)) { + GLfloat u = (coord[i][0] - u1) * du; + GLfloat v = (coord[i][1] - v1) * dv; + _math_horner_bezier_surf(map->Points, to[i], u, v, dimension, + map->Uorder, map->Vorder); + } + + dest->Size = MAX2(dest->Size, dimension); +} + static void eval2_norm( GLvector3f *dest, GLfloat coord[][4], @@ -277,29 +310,6 @@ static void eval2_1ui( GLvector1ui *dest, -static void eval2_color( GLvector4chan *dest, - GLfloat coord[][4], - GLuint *flags, - struct gl_2d_map *map ) -{ - const GLfloat u1 = map->u1; - const GLfloat du = map->du; - const GLfloat v1 = map->v1; - const GLfloat dv = map->dv; - GLchan (*to)[4] = dest->data; - GLuint i; - - for (i = 0 ; !(flags[i] & VERT_END_VB) ; i++) { - if (flags[i] & (VERT_EVAL_C2|VERT_EVAL_P2)) { - GLfloat u = (coord[i][0] - u1) * du; - GLfloat v = (coord[i][1] - v1) * dv; - GLfloat fcolor[4]; - _math_horner_bezier_surf(map->Points, fcolor, u, v, 4, - map->Uorder, map->Vorder); - UNCLAMPED_FLOAT_TO_RGBA_CHAN(to[i], fcolor); - } - } -} @@ -313,10 +323,6 @@ static void copy_3f( GLfloat to[][3], GLfloat from[][3], GLuint count ) MEMCPY( to, from, (count) * sizeof(to[0])); } -static void copy_4chan( GLchan to[][4], GLchan from[][4], GLuint count ) -{ - MEMCPY( to, from, (count) * sizeof(to[0])); -} static void copy_1ui( GLuint to[], GLuint from[], GLuint count ) { @@ -496,18 +502,17 @@ void _tnl_eval_vb( GLcontext *ctx, GLuint generated = 0; if (!all_eval) - copy_4chan( store->Color, tmp->Color.data, count ); + copy_4f( store->Color, (GLfloat (*)[4])tmp->Color.Ptr, count ); - tmp->Color.data = store->Color; - tmp->Color.start = (GLchan *) store->Color; + tmp->Color.Ptr = store->Color; if (ctx->Eval.Map1Color4 && any_eval1) { - eval1_color( &tmp->Color, coord, flags, &ctx->EvalMap.Map1Color4 ); + eval1_4f_ca( &tmp->Color, coord, flags, 4, &ctx->EvalMap.Map1Color4 ); generated |= VERT_EVAL_C1|VERT_EVAL_P1; } if (ctx->Eval.Map2Color4 && any_eval2) { - eval2_color( &tmp->Color, coord, flags, &ctx->EvalMap.Map2Color4 ); + eval2_4f_ca( &tmp->Color, coord, flags, 4, &ctx->EvalMap.Map2Color4 ); generated |= VERT_EVAL_C2|VERT_EVAL_P2; } @@ -515,11 +520,11 @@ void _tnl_eval_vb( GLcontext *ctx, * maps are disabled. */ if (purge_flags & generated) - _tnl_fixup_4chan( store->Color, flags, 0, - VERT_RGBA| - VERT_OBJ| - generated| - (VERT_EVAL_ANY&~purge_flags) ); + _tnl_fixup_4f( store->Color, flags, 0, + VERT_RGBA| + VERT_OBJ| + generated| + (VERT_EVAL_ANY&~purge_flags) ); } -- cgit v1.2.3