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author | marha <marha@users.sourceforge.net> | 2012-06-08 14:29:46 +0200 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2012-06-08 14:50:37 +0200 |
commit | 72ec0e3bb2d7fc6b77b2a75873792f781679da6a (patch) | |
tree | 0a736ab9a8c26276929ab077dc661e3625b54884 /mesalib/src/mesa/swrast_setup/ss_tritmp.h | |
parent | 5e865910f0ce672295bd60460631339be5e311a0 (diff) | |
parent | 990bc3f015a4f8fce2eb918375defcd44980a845 (diff) | |
download | vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.tar.gz vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.tar.bz2 vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.zip |
Merge remote-tracking branch 'origin/released'
Conflicts:
fontconfig/.gitignore
libX11/src/ConvSel.c
libX11/src/CrGlCur.c
libX11/src/CrWindow.c
libX11/src/GetDflt.c
libX11/src/Window.c
libX11/src/xlibi18n/XimProto.h
libX11/src/xlibi18n/lcDynamic.c
libxcb/src/.gitignore
libxcb/src/xcb_ext.c
libxcb/src/xcb_xid.c
mesalib/src/glsl/.gitignore
mesalib/src/glsl/glcpp/.gitignore
mesalib/src/mapi/glapi/gen/glX_API.xml
mesalib/src/mapi/glapi/glapi_getproc.c
mesalib/src/mesa/main/.gitignore
mesalib/src/mesa/main/syncobj.c
mesalib/src/mesa/program/.gitignore
xkbcomp/listing.c
xkbcomp/xkbpath.c
xorg-server/.gitignore
xorg-server/Xext/xvmain.c
xorg-server/dix/dispatch.c
xorg-server/hw/xwin/glx/winpriv.h
xorg-server/hw/xwin/winprefsyacc.y
xorg-server/hw/xwin/winscrinit.c
xorg-server/xkeyboard-config/rules/bin/ml1_s.sh
xorg-server/xkeyboard-config/rules/bin/ml1v1_s.sh
xorg-server/xkeyboard-config/rules/bin/ml1v_s.sh
xorg-server/xkeyboard-config/rules/bin/ml_s.sh
xorg-server/xkeyboard-config/rules/bin/mlv_s.sh
xorg-server/xkeyboard-config/rules/compat/.gitignore
Diffstat (limited to 'mesalib/src/mesa/swrast_setup/ss_tritmp.h')
-rw-r--r-- | mesalib/src/mesa/swrast_setup/ss_tritmp.h | 496 |
1 files changed, 248 insertions, 248 deletions
diff --git a/mesalib/src/mesa/swrast_setup/ss_tritmp.h b/mesalib/src/mesa/swrast_setup/ss_tritmp.h index 9b2b7cf6a..5844ad594 100644 --- a/mesalib/src/mesa/swrast_setup/ss_tritmp.h +++ b/mesalib/src/mesa/swrast_setup/ss_tritmp.h @@ -1,248 +1,248 @@ -/*
- * Mesa 3-D graphics library
- * Version: 7.1
- *
- * 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"),
- * 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 <keith@tungstengraphics.com>
- */
-
-
-/**
- * This is where we handle assigning vertex colors based on front/back
- * facing, compute polygon offset and handle glPolygonMode().
- */
-static void TAG(triangle)(struct gl_context *ctx, GLuint e0, GLuint e1, GLuint e2 )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- SScontext *swsetup = SWSETUP_CONTEXT(ctx);
- SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
- SWvertex *v[3];
- GLfloat z[3];
- GLfloat offset, oz0, oz1, oz2;
- GLenum mode = GL_FILL;
- GLuint facing = 0;
- GLchan saved_color[3][4] = { { 0 } };
- GLfloat saved_col0[3][4] = { { 0 } };
- GLfloat saved_spec[3][4] = { { 0 } };
-
- v[0] = &verts[e0];
- v[1] = &verts[e1];
- v[2] = &verts[e2];
-
- if (IND & (SS_TWOSIDE_BIT | SS_OFFSET_BIT | SS_UNFILLED_BIT))
- {
- GLfloat ex = v[0]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0];
- GLfloat ey = v[0]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1];
- GLfloat fx = v[1]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0];
- GLfloat fy = v[1]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1];
- GLfloat cc = ex*fy - ey*fx;
-
- if (IND & (SS_TWOSIDE_BIT | SS_UNFILLED_BIT))
- {
- facing = (cc < 0.0) ^ ctx->Polygon._FrontBit;
-
- if (IND & SS_UNFILLED_BIT)
- mode = facing ? ctx->Polygon.BackMode : ctx->Polygon.FrontMode;
-
- if (facing == 1) {
- if (IND & SS_TWOSIDE_BIT) {
- if (VB->BackfaceColorPtr) {
- GLfloat (*vbcolor)[4] = VB->BackfaceColorPtr->data;
-
- if (swsetup->intColors) {
- COPY_CHAN4(saved_color[0], v[0]->color);
- COPY_CHAN4(saved_color[1], v[1]->color);
- COPY_CHAN4(saved_color[2], v[2]->color);
- }
- else {
- COPY_4V(saved_col0[0], v[0]->attrib[FRAG_ATTRIB_COL0]);
- COPY_4V(saved_col0[1], v[1]->attrib[FRAG_ATTRIB_COL0]);
- COPY_4V(saved_col0[2], v[2]->attrib[FRAG_ATTRIB_COL0]);
- }
-
- if (VB->BackfaceColorPtr->stride) {
- if (swsetup->intColors) {
- SS_COLOR(v[0]->color, vbcolor[e0]);
- SS_COLOR(v[1]->color, vbcolor[e1]);
- SS_COLOR(v[2]->color, vbcolor[e2]);
- }
- else {
- COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[e0]);
- COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[e1]);
- COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[e2]);
- }
- }
- else {
- /* flat shade */
- if (swsetup->intColors) {
- SS_COLOR(v[0]->color, vbcolor[0]);
- SS_COLOR(v[1]->color, vbcolor[0]);
- SS_COLOR(v[2]->color, vbcolor[0]);
- }
- else {
- COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]);
- COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]);
- COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]);
- }
- }
- }
-
- if (VB->BackfaceSecondaryColorPtr) {
- GLfloat (*vbspec)[4] = VB->BackfaceSecondaryColorPtr->data;
-
- COPY_4V(saved_spec[0], v[0]->attrib[FRAG_ATTRIB_COL1]);
- COPY_4V(saved_spec[1], v[1]->attrib[FRAG_ATTRIB_COL1]);
- COPY_4V(saved_spec[2], v[2]->attrib[FRAG_ATTRIB_COL1]);
-
- if (VB->BackfaceSecondaryColorPtr->stride) {
- SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[e0]);
- SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[e1]);
- SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[e2]);
- }
- else {
- SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[0]);
- SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[0]);
- SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[0]);
- }
- }
- }
- }
- }
-
- if (IND & SS_OFFSET_BIT) {
- const GLfloat max = ctx->DrawBuffer->_DepthMaxF;
- /* save original Z values (restored later) */
- z[0] = v[0]->attrib[FRAG_ATTRIB_WPOS][2];
- z[1] = v[1]->attrib[FRAG_ATTRIB_WPOS][2];
- z[2] = v[2]->attrib[FRAG_ATTRIB_WPOS][2];
- /* Note that Z values are already scaled to [0,65535] (for example)
- * so no MRD value is used here.
- */
- offset = ctx->Polygon.OffsetUnits;
- if (cc * cc > 1e-16) {
- const GLfloat ez = z[0] - z[2];
- const GLfloat fz = z[1] - z[2];
- const GLfloat oneOverArea = 1.0F / cc;
- const GLfloat dzdx = FABSF((ey * fz - ez * fy) * oneOverArea);
- const GLfloat dzdy = FABSF((ez * fx - ex * fz) * oneOverArea);
- offset += MAX2(dzdx, dzdy) * ctx->Polygon.OffsetFactor;
- }
- /* new Z values */
- oz0 = CLAMP(v[0]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max);
- oz1 = CLAMP(v[1]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max);
- oz2 = CLAMP(v[2]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max);
- }
- }
-
- if (mode == GL_POINT) {
- if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetPoint) {
- v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0;
- v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1;
- v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2;
- }
- _swsetup_render_tri(ctx, e0, e1, e2, facing, _swsetup_edge_render_point_tri);
- } else if (mode == GL_LINE) {
- if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetLine) {
- v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0;
- v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1;
- v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2;
- }
- _swsetup_render_tri(ctx, e0, e1, e2, facing, _swsetup_edge_render_line_tri);
- } else {
- if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetFill) {
- v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0;
- v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1;
- v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2;
- }
- _swrast_Triangle( ctx, v[0], v[1], v[2] );
- }
-
- /*
- * Restore original vertex colors, etc.
- */
- if (IND & SS_OFFSET_BIT) {
- v[0]->attrib[FRAG_ATTRIB_WPOS][2] = z[0];
- v[1]->attrib[FRAG_ATTRIB_WPOS][2] = z[1];
- v[2]->attrib[FRAG_ATTRIB_WPOS][2] = z[2];
- }
-
- if (IND & SS_TWOSIDE_BIT) {
- if (facing == 1) {
- if (VB->BackfaceColorPtr) {
- if (swsetup->intColors) {
- COPY_CHAN4(v[0]->color, saved_color[0]);
- COPY_CHAN4(v[1]->color, saved_color[1]);
- COPY_CHAN4(v[2]->color, saved_color[2]);
- }
- else {
- COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], saved_col0[0]);
- COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], saved_col0[1]);
- COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], saved_col0[2]);
- }
- }
-
- if (VB->BackfaceSecondaryColorPtr) {
- COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL1], saved_spec[0]);
- COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL1], saved_spec[1]);
- COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL1], saved_spec[2]);
- }
- }
- }
-}
-
-
-
-/* Need to fixup edgeflags when decomposing to triangles:
- */
-static void TAG(quadfunc)( struct gl_context *ctx, GLuint v0,
- GLuint v1, GLuint v2, GLuint v3 )
-{
- if (IND & SS_UNFILLED_BIT) {
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- if (VB->EdgeFlag) { /* XXX this test shouldn't be needed (bug 12614) */
- GLubyte ef1 = VB->EdgeFlag[v1];
- GLubyte ef3 = VB->EdgeFlag[v3];
- VB->EdgeFlag[v1] = 0;
- TAG(triangle)( ctx, v0, v1, v3 );
- VB->EdgeFlag[v1] = ef1;
- VB->EdgeFlag[v3] = 0;
- TAG(triangle)( ctx, v1, v2, v3 );
- VB->EdgeFlag[v3] = ef3;
- }
- } else {
- TAG(triangle)( ctx, v0, v1, v3 );
- TAG(triangle)( ctx, v1, v2, v3 );
- }
-}
-
-
-
-
-static void TAG(init)( void )
-{
- tri_tab[IND] = TAG(triangle);
- quad_tab[IND] = TAG(quadfunc);
-}
-
-
-#undef IND
-#undef TAG
+/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * 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"), + * 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 <keith@tungstengraphics.com> + */ + + +/** + * This is where we handle assigning vertex colors based on front/back + * facing, compute polygon offset and handle glPolygonMode(). + */ +static void TAG(triangle)(struct gl_context *ctx, GLuint e0, GLuint e1, GLuint e2 ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + SScontext *swsetup = SWSETUP_CONTEXT(ctx); + SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts; + SWvertex *v[3]; + GLfloat z[3]; + GLfloat offset, oz0, oz1, oz2; + GLenum mode = GL_FILL; + GLuint facing = 0; + GLchan saved_color[3][4] = { { 0 } }; + GLfloat saved_col0[3][4] = { { 0 } }; + GLfloat saved_spec[3][4] = { { 0 } }; + + v[0] = &verts[e0]; + v[1] = &verts[e1]; + v[2] = &verts[e2]; + + if (IND & (SS_TWOSIDE_BIT | SS_OFFSET_BIT | SS_UNFILLED_BIT)) + { + GLfloat ex = v[0]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0]; + GLfloat ey = v[0]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1]; + GLfloat fx = v[1]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0]; + GLfloat fy = v[1]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1]; + GLfloat cc = ex*fy - ey*fx; + + if (IND & (SS_TWOSIDE_BIT | SS_UNFILLED_BIT)) + { + facing = (cc < 0.0) ^ ctx->Polygon._FrontBit; + + if (IND & SS_UNFILLED_BIT) + mode = facing ? ctx->Polygon.BackMode : ctx->Polygon.FrontMode; + + if (facing == 1) { + if (IND & SS_TWOSIDE_BIT) { + if (VB->BackfaceColorPtr) { + GLfloat (*vbcolor)[4] = VB->BackfaceColorPtr->data; + + if (swsetup->intColors) { + COPY_CHAN4(saved_color[0], v[0]->color); + COPY_CHAN4(saved_color[1], v[1]->color); + COPY_CHAN4(saved_color[2], v[2]->color); + } + else { + COPY_4V(saved_col0[0], v[0]->attrib[FRAG_ATTRIB_COL0]); + COPY_4V(saved_col0[1], v[1]->attrib[FRAG_ATTRIB_COL0]); + COPY_4V(saved_col0[2], v[2]->attrib[FRAG_ATTRIB_COL0]); + } + + if (VB->BackfaceColorPtr->stride) { + if (swsetup->intColors) { + SS_COLOR(v[0]->color, vbcolor[e0]); + SS_COLOR(v[1]->color, vbcolor[e1]); + SS_COLOR(v[2]->color, vbcolor[e2]); + } + else { + COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[e0]); + COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[e1]); + COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[e2]); + } + } + else { + /* flat shade */ + if (swsetup->intColors) { + SS_COLOR(v[0]->color, vbcolor[0]); + SS_COLOR(v[1]->color, vbcolor[0]); + SS_COLOR(v[2]->color, vbcolor[0]); + } + else { + COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); + COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); + COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); + } + } + } + + if (VB->BackfaceSecondaryColorPtr) { + GLfloat (*vbspec)[4] = VB->BackfaceSecondaryColorPtr->data; + + COPY_4V(saved_spec[0], v[0]->attrib[FRAG_ATTRIB_COL1]); + COPY_4V(saved_spec[1], v[1]->attrib[FRAG_ATTRIB_COL1]); + COPY_4V(saved_spec[2], v[2]->attrib[FRAG_ATTRIB_COL1]); + + if (VB->BackfaceSecondaryColorPtr->stride) { + SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[e0]); + SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[e1]); + SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[e2]); + } + else { + SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); + SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); + SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); + } + } + } + } + } + + if (IND & SS_OFFSET_BIT) { + const GLfloat max = ctx->DrawBuffer->_DepthMaxF; + /* save original Z values (restored later) */ + z[0] = v[0]->attrib[FRAG_ATTRIB_WPOS][2]; + z[1] = v[1]->attrib[FRAG_ATTRIB_WPOS][2]; + z[2] = v[2]->attrib[FRAG_ATTRIB_WPOS][2]; + /* Note that Z values are already scaled to [0,65535] (for example) + * so no MRD value is used here. + */ + offset = ctx->Polygon.OffsetUnits; + if (cc * cc > 1e-16) { + const GLfloat ez = z[0] - z[2]; + const GLfloat fz = z[1] - z[2]; + const GLfloat oneOverArea = 1.0F / cc; + const GLfloat dzdx = FABSF((ey * fz - ez * fy) * oneOverArea); + const GLfloat dzdy = FABSF((ez * fx - ex * fz) * oneOverArea); + offset += MAX2(dzdx, dzdy) * ctx->Polygon.OffsetFactor; + } + /* new Z values */ + oz0 = CLAMP(v[0]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max); + oz1 = CLAMP(v[1]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max); + oz2 = CLAMP(v[2]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max); + } + } + + if (mode == GL_POINT) { + if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetPoint) { + v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0; + v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1; + v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2; + } + _swsetup_render_tri(ctx, e0, e1, e2, facing, _swsetup_edge_render_point_tri); + } else if (mode == GL_LINE) { + if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetLine) { + v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0; + v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1; + v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2; + } + _swsetup_render_tri(ctx, e0, e1, e2, facing, _swsetup_edge_render_line_tri); + } else { + if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetFill) { + v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0; + v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1; + v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2; + } + _swrast_Triangle( ctx, v[0], v[1], v[2] ); + } + + /* + * Restore original vertex colors, etc. + */ + if (IND & SS_OFFSET_BIT) { + v[0]->attrib[FRAG_ATTRIB_WPOS][2] = z[0]; + v[1]->attrib[FRAG_ATTRIB_WPOS][2] = z[1]; + v[2]->attrib[FRAG_ATTRIB_WPOS][2] = z[2]; + } + + if (IND & SS_TWOSIDE_BIT) { + if (facing == 1) { + if (VB->BackfaceColorPtr) { + if (swsetup->intColors) { + COPY_CHAN4(v[0]->color, saved_color[0]); + COPY_CHAN4(v[1]->color, saved_color[1]); + COPY_CHAN4(v[2]->color, saved_color[2]); + } + else { + COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], saved_col0[0]); + COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], saved_col0[1]); + COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], saved_col0[2]); + } + } + + if (VB->BackfaceSecondaryColorPtr) { + COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL1], saved_spec[0]); + COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL1], saved_spec[1]); + COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL1], saved_spec[2]); + } + } + } +} + + + +/* Need to fixup edgeflags when decomposing to triangles: + */ +static void TAG(quadfunc)( struct gl_context *ctx, GLuint v0, + GLuint v1, GLuint v2, GLuint v3 ) +{ + if (IND & SS_UNFILLED_BIT) { + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + if (VB->EdgeFlag) { /* XXX this test shouldn't be needed (bug 12614) */ + GLubyte ef1 = VB->EdgeFlag[v1]; + GLubyte ef3 = VB->EdgeFlag[v3]; + VB->EdgeFlag[v1] = 0; + TAG(triangle)( ctx, v0, v1, v3 ); + VB->EdgeFlag[v1] = ef1; + VB->EdgeFlag[v3] = 0; + TAG(triangle)( ctx, v1, v2, v3 ); + VB->EdgeFlag[v3] = ef3; + } + } else { + TAG(triangle)( ctx, v0, v1, v3 ); + TAG(triangle)( ctx, v1, v2, v3 ); + } +} + + + + +static void TAG(init)( void ) +{ + tri_tab[IND] = TAG(triangle); + quad_tab[IND] = TAG(quadfunc); +} + + +#undef IND +#undef TAG |