diff options
author | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
commit | 807c6931fe683fd844ceec1b023232181e6aae03 (patch) | |
tree | 1a131ed95fe2200d0ad33da8f7755a7ed2364adc /mesalib/src/mesa/swrast_setup/ss_tritmp.h | |
parent | 973099dda7e49e5abe29819a7124b3b1e7bd8b92 (diff) | |
download | vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.gz vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.bz2 vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.zip |
xserver and mesa git update 28-12-2010
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 8e9fa1bd5..9b2b7cf6a 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)(GLcontext *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)( GLcontext *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
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