X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fswrast_setup%2Fss_triangle.c;h=5d1c70e9481be6b51280148b880adb73a04abba6;hb=1b3ec16cc2c1190f0212fda26242f5e5206f5b1e;hp=2ea04ce0aac5b1c8f24607effbd21b83e02e7a43;hpb=b51b0a847d7e7daaea69f77ab569086ef81c24a2;p=mesa.git diff --git a/src/mesa/swrast_setup/ss_triangle.c b/src/mesa/swrast_setup/ss_triangle.c index 2ea04ce0aac..5d1c70e9481 100644 --- a/src/mesa/swrast_setup/ss_triangle.c +++ b/src/mesa/swrast_setup/ss_triangle.c @@ -1,8 +1,8 @@ /* * Mesa 3-D graphics library - * Version: 3.5 + * Version: 7.1 * - * Copyright (C) 1999 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2007 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"), @@ -22,205 +22,183 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * Authors: - * Keith Whitwell + * Keith Whitwell */ -#include "glheader.h" -#include "colormac.h" -#include "macros.h" -#include "mtypes.h" +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/macros.h" +#include "main/mtypes.h" #include "tnl/t_context.h" #include "ss_triangle.h" #include "ss_context.h" -#define SS_RGBA_BIT 0x1 -#define SS_OFFSET_BIT 0x2 -#define SS_TWOSIDE_BIT 0x4 -#define SS_UNFILLED_BIT 0x8 -#define SS_MAX_TRIFUNC 0x10 +#define SS_OFFSET_BIT 0x1 +#define SS_TWOSIDE_BIT 0x2 +#define SS_UNFILLED_BIT 0x4 +#define SS_MAX_TRIFUNC 0x8 -static triangle_func tri_tab[SS_MAX_TRIFUNC]; -static quad_func quad_tab[SS_MAX_TRIFUNC]; +static tnl_triangle_func tri_tab[SS_MAX_TRIFUNC]; +static tnl_quad_func quad_tab[SS_MAX_TRIFUNC]; -static void _swsetup_render_line_tri( GLcontext *ctx, - GLuint e0, GLuint e1, GLuint e2 ) -{ - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - GLubyte *ef = VB->EdgeFlag; - SWvertex *verts = swsetup->verts; - SWvertex *v0 = &verts[e0]; - SWvertex *v1 = &verts[e1]; - SWvertex *v2 = &verts[e2]; - GLchan c[2][4]; - GLchan s[2][4]; - GLuint i[2]; - - if (ctx->_TriangleCaps & DD_FLATSHADE) { - COPY_CHAN4(c[0], v0->color); - COPY_CHAN4(c[1], v1->color); - COPY_CHAN4(s[0], v0->specular); - COPY_CHAN4(s[1], v1->specular); - i[0] = v0->index; - i[1] = v1->index; +/* + * Render a triangle respecting edge flags. + */ +typedef void (* swsetup_edge_render_prim_tri)(struct gl_context *ctx, + const GLubyte *ef, + GLuint e0, + GLuint e1, + GLuint e2, + const SWvertex *v0, + const SWvertex *v1, + const SWvertex *v2); - COPY_CHAN4(v0->color, v2->color); - COPY_CHAN4(v1->color, v2->color); - COPY_CHAN4(v0->specular, v2->specular); - COPY_CHAN4(v1->specular, v2->specular); - v0->index = v2->index; - v1->index = v2->index; - } +/* + * Render a triangle using lines and respecting edge flags. + */ +static void +_swsetup_edge_render_line_tri(struct gl_context *ctx, + const GLubyte *ef, + GLuint e0, + GLuint e1, + GLuint e2, + const SWvertex *v0, + const SWvertex *v1, + const SWvertex *v2) +{ + SScontext *swsetup = SWSETUP_CONTEXT(ctx); if (swsetup->render_prim == GL_POLYGON) { - if (ef[e2]) _swrast_Line( ctx, v2, v0 ); - if (ef[e0]) _swrast_Line( ctx, v0, v1 ); - if (ef[e1]) _swrast_Line( ctx, v1, v2 ); + if (ef[e2]) _swrast_Line( ctx, v2, v0 ); + if (ef[e0]) _swrast_Line( ctx, v0, v1 ); + if (ef[e1]) _swrast_Line( ctx, v1, v2 ); } else { - if (ef[e0]) _swrast_Line( ctx, v0, v1 ); - if (ef[e1]) _swrast_Line( ctx, v1, v2 ); - if (ef[e2]) _swrast_Line( ctx, v2, v0 ); + if (ef[e0]) _swrast_Line( ctx, v0, v1 ); + if (ef[e1]) _swrast_Line( ctx, v1, v2 ); + if (ef[e2]) _swrast_Line( ctx, v2, v0 ); } +} - if (ctx->_TriangleCaps & DD_FLATSHADE) { - COPY_CHAN4(v0->color, c[0]); - COPY_CHAN4(v1->color, c[1]); - COPY_CHAN4(v0->specular, s[0]); - COPY_CHAN4(v1->specular, s[1]); - v0->index = i[0]; - v1->index = i[1]; - } +/* + * Render a triangle using points and respecting edge flags. + */ +static void +_swsetup_edge_render_point_tri(struct gl_context *ctx, + const GLubyte *ef, + GLuint e0, + GLuint e1, + GLuint e2, + const SWvertex *v0, + const SWvertex *v1, + const SWvertex *v2) +{ + if (ef[e0]) _swrast_Point( ctx, v0 ); + if (ef[e1]) _swrast_Point( ctx, v1 ); + if (ef[e2]) _swrast_Point( ctx, v2 ); + + _swrast_flush(ctx); } -static void _swsetup_render_point_tri( GLcontext *ctx, - GLuint e0, GLuint e1, GLuint e2 ) +/* + * Render a triangle respecting cull and shade model. + */ +static void _swsetup_render_tri(struct gl_context *ctx, + GLuint e0, + GLuint e1, + GLuint e2, + GLuint facing, + swsetup_edge_render_prim_tri render) { - SScontext *swsetup = SWSETUP_CONTEXT(ctx); + SScontext *swsetup = SWSETUP_CONTEXT(ctx); struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; GLubyte *ef = VB->EdgeFlag; SWvertex *verts = swsetup->verts; SWvertex *v0 = &verts[e0]; SWvertex *v1 = &verts[e1]; SWvertex *v2 = &verts[e2]; - GLchan c[2][4]; - GLchan s[2][4]; - GLuint i[2]; - if (ctx->_TriangleCaps & DD_FLATSHADE) { + /* cull testing */ + if (ctx->Polygon.CullFlag) { + if (facing == 1 && ctx->Polygon.CullFaceMode != GL_FRONT) + return; + if (facing == 0 && ctx->Polygon.CullFaceMode != GL_BACK) + return; + } + + _swrast_SetFacing(ctx, facing); + + if (ctx->Light.ShadeModel == GL_FLAT) { + GLchan c[2][4]; + GLfloat s[2][4]; + + /* save colors/indexes for v0, v1 vertices */ COPY_CHAN4(c[0], v0->color); COPY_CHAN4(c[1], v1->color); - COPY_CHAN4(s[0], v0->specular); - COPY_CHAN4(s[1], v1->specular); - i[0] = v0->index; - i[1] = v1->index; + COPY_4V(s[0], v0->attrib[FRAG_ATTRIB_COL1]); + COPY_4V(s[1], v1->attrib[FRAG_ATTRIB_COL1]); + /* copy v2 color/indexes to v0, v1 indexes */ COPY_CHAN4(v0->color, v2->color); COPY_CHAN4(v1->color, v2->color); - COPY_CHAN4(v0->specular, v2->specular); - COPY_CHAN4(v1->specular, v2->specular); - v0->index = v2->index; - v1->index = v2->index; - } + COPY_4V(v0->attrib[FRAG_ATTRIB_COL1], v2->attrib[FRAG_ATTRIB_COL1]); + COPY_4V(v1->attrib[FRAG_ATTRIB_COL1], v2->attrib[FRAG_ATTRIB_COL1]); - if (ef[e0]) _swrast_Point( ctx, v0 ); - if (ef[e1]) _swrast_Point( ctx, v1 ); - if (ef[e2]) _swrast_Point( ctx, v2 ); + render(ctx, ef, e0, e1, e2, v0, v1, v2); - if (ctx->_TriangleCaps & DD_FLATSHADE) { COPY_CHAN4(v0->color, c[0]); COPY_CHAN4(v1->color, c[1]); - COPY_CHAN4(v0->specular, s[0]); - COPY_CHAN4(v1->specular, s[1]); - v0->index = i[0]; - v1->index = i[1]; + COPY_4V(v0->attrib[FRAG_ATTRIB_COL1], s[0]); + COPY_4V(v1->attrib[FRAG_ATTRIB_COL1], s[1]); + } + else { + render(ctx, ef, e0, e1, e2, v0, v1, v2); } } -#define SS_COLOR(a,b) COPY_4UBV(a,b) -#define SS_SPEC(a,b) COPY_4UBV(a,b) +#define SS_COLOR(a,b) UNCLAMPED_FLOAT_TO_RGBA_CHAN(a,b) +#define SS_SPEC(a,b) COPY_4V(a,b) #define SS_IND(a,b) (a = b) #define IND (0) -#define TAG(x) x -#include "ss_tritmp.h" - -#define IND (SS_OFFSET_BIT) -#define TAG(x) x##_offset -#include "ss_tritmp.h" - -#define IND (SS_TWOSIDE_BIT) -#define TAG(x) x##_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_UNFILLED_BIT) -#define TAG(x) x##_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_TWOSIDE_BIT|SS_UNFILLED_BIT) -#define TAG(x) x##_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 (0|SS_RGBA_BIT) #define TAG(x) x##_rgba #include "ss_tritmp.h" -#define IND (SS_OFFSET_BIT|SS_RGBA_BIT) +#define IND (SS_OFFSET_BIT) #define TAG(x) x##_offset_rgba #include "ss_tritmp.h" -#define IND (SS_TWOSIDE_BIT|SS_RGBA_BIT) +#define IND (SS_TWOSIDE_BIT) #define TAG(x) x##_twoside_rgba #include "ss_tritmp.h" -#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_RGBA_BIT) +#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT) #define TAG(x) x##_offset_twoside_rgba #include "ss_tritmp.h" -#define IND (SS_UNFILLED_BIT|SS_RGBA_BIT) +#define IND (SS_UNFILLED_BIT) #define TAG(x) x##_unfilled_rgba #include "ss_tritmp.h" -#define IND (SS_OFFSET_BIT|SS_UNFILLED_BIT|SS_RGBA_BIT) +#define IND (SS_OFFSET_BIT|SS_UNFILLED_BIT) #define TAG(x) x##_offset_unfilled_rgba #include "ss_tritmp.h" -#define IND (SS_TWOSIDE_BIT|SS_UNFILLED_BIT|SS_RGBA_BIT) +#define IND (SS_TWOSIDE_BIT|SS_UNFILLED_BIT) #define TAG(x) x##_twoside_unfilled_rgba #include "ss_tritmp.h" -#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT|SS_RGBA_BIT) +#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT) #define TAG(x) x##_offset_twoside_unfilled_rgba #include "ss_tritmp.h" -void _swsetup_trifuncs_init( GLcontext *ctx ) +void _swsetup_trifuncs_init( struct gl_context *ctx ) { (void) ctx; - init(); - init_offset(); - init_twoside(); - init_offset_twoside(); - init_unfilled(); - init_offset_unfilled(); - init_twoside_unfilled(); - init_offset_twoside_unfilled(); - init_rgba(); init_offset_rgba(); init_twoside_rgba(); @@ -232,25 +210,25 @@ void _swsetup_trifuncs_init( GLcontext *ctx ) } -static void swsetup_points( GLcontext *ctx, GLuint first, GLuint last ) +static void swsetup_points( struct gl_context *ctx, GLuint first, GLuint last ) { struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts; GLuint i; - + if (VB->Elts) { - for (i = first; i < last; i++) + for (i = first; i < last; i++) if (VB->ClipMask[VB->Elts[i]] == 0) _swrast_Point( ctx, &verts[VB->Elts[i]] ); } else { - for (i = first; i < last; i++) + for (i = first; i < last; i++) if (VB->ClipMask[i] == 0) _swrast_Point( ctx, &verts[i] ); } } -static void swsetup_line( GLcontext *ctx, GLuint v0, GLuint v1 ) +static void swsetup_line( struct gl_context *ctx, GLuint v0, GLuint v1 ) { SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts; _swrast_Line( ctx, &verts[v0], &verts[v1] ); @@ -258,26 +236,30 @@ static void swsetup_line( GLcontext *ctx, GLuint v0, GLuint v1 ) -void _swsetup_choose_trifuncs( GLcontext *ctx ) +void _swsetup_choose_trifuncs( struct gl_context *ctx ) { - SScontext *swsetup = SWSETUP_CONTEXT(ctx); + TNLcontext *tnl = TNL_CONTEXT(ctx); GLuint ind = 0; - if (ctx->Polygon._OffsetAny) + if (ctx->Polygon.OffsetPoint || + ctx->Polygon.OffsetLine || + ctx->Polygon.OffsetFill) ind |= SS_OFFSET_BIT; - if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) + if ((ctx->Light.Enabled && ctx->Light.Model.TwoSide) || + (ctx->VertexProgram._Current && ctx->VertexProgram.TwoSideEnabled)) ind |= SS_TWOSIDE_BIT; - if (ctx->_TriangleCaps & DD_TRI_UNFILLED) + /* We piggyback the two-sided stencil front/back determination on the + * unfilled triangle path. + */ + if (ctx->Polygon.FrontMode != GL_FILL || + ctx->Polygon.BackMode != GL_FILL || + (ctx->Stencil.Enabled && ctx->Stencil._TestTwoSide)) ind |= SS_UNFILLED_BIT; - if (ctx->Visual.rgbMode) - ind |= SS_RGBA_BIT; - - swsetup->Triangle = tri_tab[ind]; - swsetup->Quad = quad_tab[ind]; - swsetup->Line = swsetup_line; - swsetup->Points = swsetup_points; + tnl->Driver.Render.Triangle = tri_tab[ind]; + tnl->Driver.Render.Quad = quad_tab[ind]; + tnl->Driver.Render.Line = swsetup_line; + tnl->Driver.Render.Points = swsetup_points; } -