-/* $Id: ss_triangle.c,v 1.14 2001/07/12 22:09:21 keithw Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 6.1
*
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * 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"),
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Keith Whitwell <keithw@valinux.com>
+ * Keith Whitwell <keith@tungstengraphics.com>
*/
#include "glheader.h"
#define SS_UNFILLED_BIT 0x8
#define SS_MAX_TRIFUNC 0x10
-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 )
+ GLuint e0, GLuint e1, GLuint e2,
+ GLuint facing )
{
SScontext *swsetup = SWSETUP_CONTEXT(ctx);
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
SWvertex *v1 = &verts[e1];
SWvertex *v2 = &verts[e2];
GLchan c[2][4];
- GLchan s[2][4];
- GLuint i[2];
+ GLfloat s[2][4];
+ GLfloat i[2];
+
+ /* cull testing */
+ if (ctx->Polygon.CullFlag) {
+ if (facing == 1 && ctx->Polygon.CullFaceMode != GL_FRONT)
+ return;
+ if (facing == 0 && ctx->Polygon.CullFaceMode != GL_BACK)
+ return;
+ }
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
+ if (ctx->Light.ShadeModel == GL_FLAT) {
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]);
+ i[0] = v0->attrib[FRAG_ATTRIB_CI][0];
+ i[1] = v1->attrib[FRAG_ATTRIB_CI][0];
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]);
+ v0->attrib[FRAG_ATTRIB_CI][0] = v2->attrib[FRAG_ATTRIB_CI][0];
+ v1->attrib[FRAG_ATTRIB_CI][0] = v2->attrib[FRAG_ATTRIB_CI][0];
}
if (swsetup->render_prim == GL_POLYGON) {
if (ef[e2]) _swrast_Line( ctx, v2, v0 );
}
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
+ if (ctx->Light.ShadeModel == GL_FLAT) {
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]);
+ v0->attrib[FRAG_ATTRIB_CI][0] = i[0];
+ v1->attrib[FRAG_ATTRIB_CI][0] = i[1];
}
}
static void _swsetup_render_point_tri( GLcontext *ctx,
- GLuint e0, GLuint e1, GLuint e2 )
+ GLuint e0, GLuint e1, GLuint e2,
+ GLuint facing )
{
SScontext *swsetup = SWSETUP_CONTEXT(ctx);
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
SWvertex *v1 = &verts[e1];
SWvertex *v2 = &verts[e2];
GLchan c[2][4];
- GLchan s[2][4];
- GLuint i[2];
+ GLfloat s[2][4];
+ GLfloat i[2];
+
+ /* cull testing */
+ if (ctx->Polygon.CullFlag) {
+ if (facing == 1 && ctx->Polygon.CullFaceMode != GL_FRONT)
+ return;
+ if (facing == 0 && ctx->Polygon.CullFaceMode != GL_BACK)
+ return;
+ }
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
+ if (ctx->Light.ShadeModel == GL_FLAT) {
+ /* 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]);
+ i[0] = v0->attrib[FRAG_ATTRIB_CI][0];
+ i[1] = v1->attrib[FRAG_ATTRIB_CI][0];
+ /* 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]);
+ v0->attrib[FRAG_ATTRIB_CI][0] = v2->attrib[FRAG_ATTRIB_CI][0];
+ v1->attrib[FRAG_ATTRIB_CI][0] = v2->attrib[FRAG_ATTRIB_CI][0];
}
if (ef[e0]) _swrast_Point( ctx, v0 );
if (ef[e1]) _swrast_Point( ctx, v1 );
if (ef[e2]) _swrast_Point( ctx, v2 );
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
+ if (ctx->Light.ShadeModel == GL_FLAT) {
+ /* restore v0, v1 colores/indexes */
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]);
+ v0->attrib[FRAG_ATTRIB_CI][0] = i[0];
+ v1->attrib[FRAG_ATTRIB_CI][0] = i[1];
}
+ _swrast_flush(ctx);
}
#define SS_COLOR(a,b) UNCLAMPED_FLOAT_TO_RGBA_CHAN(a,b)
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)
+ /* Note: gl_FrontFacing lives in fragment input FOGC.Y at this time */
+ if ((ctx->Light.Enabled && ctx->Light.Model.TwoSide) ||
+ (ctx->VertexProgram._Enabled && ctx->VertexProgram.TwoSideEnabled) ||
+ (ctx->FragmentProgram._Current && ctx->FragmentProgram._Current->Base.InputsRead & (1 << FRAG_ATTRIB_FOGC)))
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)
tnl->Driver.Render.Quad = quad_tab[ind];
tnl->Driver.Render.Line = swsetup_line;
tnl->Driver.Render.Points = swsetup_points;
+
+ ctx->_Facing = 0;
}