diff options
Diffstat (limited to 'src/mesa/swrast_setup/ss_triangle.c')
| -rw-r--r-- | src/mesa/swrast_setup/ss_triangle.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/mesa/swrast_setup/ss_triangle.c b/src/mesa/swrast_setup/ss_triangle.c new file mode 100644 index 00000000000..992bc4f396a --- /dev/null +++ b/src/mesa/swrast_setup/ss_triangle.c @@ -0,0 +1,161 @@ +/* + * Mesa 3-D graphics library + * Version: 3.5 + * + * Copyright (C) 1999 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 <[email protected]> + */ + +#include "glheader.h" +#include "macros.h" +#include "types.h" + +#include "ss_triangle.h" +#include "ss_context.h" + +#define SS_FLAT_BIT 0x1 +#define SS_OFFSET_BIT 0x2 +#define SS_TWOSIDE_BIT 0x4 +#define SS_UNFILLED_BIT 0x10 +#define SS_MAX_TRIFUNC 0x20 + +static triangle_func tri_tab[SS_MAX_TRIFUNC]; +static line_func line_tab[SS_MAX_TRIFUNC]; +static points_func points_tab[SS_MAX_TRIFUNC]; +static quad_func quad_tab[SS_MAX_TRIFUNC]; + + +#define SS_COLOR(a,b) COPY_4UBV(a,b) +#define SS_SPEC(a,b) COPY_4UBV(a,b) +#define SS_IND(a,b) (a = b) + +#define IND (0) +#define TAG(x) x +#include "ss_tritmp.h" + +#define IND (SS_FLAT_BIT) +#define TAG(x) x##_flat +#include "ss_tritmp.h" + +#define IND (SS_OFFSET_BIT) +#define TAG(x) x##_offset +#include "ss_tritmp.h" + +#define IND (SS_FLAT_BIT|SS_OFFSET_BIT) +#define TAG(x) x##_flat_offset +#include "ss_tritmp.h" + +#define IND (SS_TWOSIDE_BIT) +#define TAG(x) x##_twoside +#include "ss_tritmp.h" + +#define IND (SS_FLAT_BIT|SS_TWOSIDE_BIT) +#define TAG(x) x##_flat_twoside +#include "ss_tritmp.h" + +#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT) +#define TAG(x) x##_offset_twoside +#include "ss_tritmp.h" + +#define IND (SS_FLAT_BIT|SS_OFFSET_BIT|SS_TWOSIDE_BIT) +#define TAG(x) x##_flat_offset_twoside +#include "ss_tritmp.h" + +#define IND (SS_UNFILLED_BIT) +#define TAG(x) x##_unfilled +#include "ss_tritmp.h" + +#define IND (SS_FLAT_BIT|SS_UNFILLED_BIT) +#define TAG(x) x##_flat_unfilled +#include "ss_tritmp.h" + +#define IND (SS_OFFSET_BIT|SS_UNFILLED_BIT) +#define TAG(x) x##_offset_unfilled +#include "ss_tritmp.h" + +#define IND (SS_FLAT_BIT|SS_OFFSET_BIT|SS_UNFILLED_BIT) +#define TAG(x) x##_flat_offset_unfilled +#include "ss_tritmp.h" + +#define IND (SS_TWOSIDE_BIT|SS_UNFILLED_BIT) +#define TAG(x) x##_twoside_unfilled +#include "ss_tritmp.h" + +#define IND (SS_FLAT_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT) +#define TAG(x) x##_flat_twoside_unfilled +#include "ss_tritmp.h" + +#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT) +#define TAG(x) x##_offset_twoside_unfilled +#include "ss_tritmp.h" + +#define IND (SS_FLAT_BIT|SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT) +#define TAG(x) x##_flat_offset_twoside_unfilled +#include "ss_tritmp.h" + + +void _swsetup_trifuncs_init( GLcontext *ctx ) +{ + (void) ctx; + + init(); + init_flat(); + init_offset(); + init_flat_offset(); + init_twoside(); + init_flat_twoside(); + init_offset_twoside(); + init_flat_offset_twoside(); + init_unfilled(); + init_flat_unfilled(); + init_offset_unfilled(); + init_flat_offset_unfilled(); + init_twoside_unfilled(); + init_flat_twoside_unfilled(); + init_offset_twoside_unfilled(); + init_flat_offset_twoside_unfilled(); +} + + +void _swsetup_choose_trifuncs( GLcontext *ctx ) +{ + SScontext *swsetup = SWSETUP_CONTEXT(ctx); + GLuint ind = 0; + + if (ctx->Light.ShadeModel == GL_FLAT) + ind |= SS_FLAT_BIT; + + if (ctx->Polygon._OffsetAny) + ind |= SS_OFFSET_BIT; + + if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) + ind |= SS_TWOSIDE_BIT; + + if (ctx->Polygon._Unfilled) + ind |= SS_UNFILLED_BIT; + + swsetup->Triangle = tri_tab[ind]; + swsetup->Line = line_tab[ind]; + swsetup->Points = points_tab[ind]; + swsetup->Quad = quad_tab[ind]; +} + |