aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/extras/Mesa/src/mesa/tnl_dd/t_dd_tritmp.h
diff options
context:
space:
mode:
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/tnl_dd/t_dd_tritmp.h')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/tnl_dd/t_dd_tritmp.h833
1 files changed, 833 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/tnl_dd/t_dd_tritmp.h b/nx-X11/extras/Mesa/src/mesa/tnl_dd/t_dd_tritmp.h
new file mode 100644
index 000000000..0bf32ff34
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/tnl_dd/t_dd_tritmp.h
@@ -0,0 +1,833 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.3
+ *
+ * Copyright (C) 1999-2005 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>
+ */
+
+
+/* Template for building functions to plug into the driver interface
+ * of t_vb_render.c:
+ * ctx->Driver.QuadFunc
+ * ctx->Driver.TriangleFunc
+ * ctx->Driver.LineFunc
+ * ctx->Driver.PointsFunc
+ *
+ * DO_TWOSIDE: Plug back-color values from the VB into backfacing triangles,
+ * and restore vertices afterwards.
+ * DO_OFFSET: Calculate offset for triangles and adjust vertices. Restore
+ * vertices after rendering.
+ * DO_FLAT: For hardware without native flatshading, copy provoking colors
+ * into the other vertices. Restore after rendering.
+ * DO_UNFILLED: Decompose triangles to lines and points where appropriate.
+ * DO_TWOSTENCIL:Gross hack for two-sided stencil.
+ *
+ * HAVE_RGBA: Vertices have rgba values (otherwise index values).
+ * HAVE_SPEC: Vertices have secondary rgba values.
+ *
+ * VERT_X(v): Alias for vertex x value.
+ * VERT_Y(v): Alias for vertex y value.
+ * VERT_Z(v): Alias for vertex z value.
+ * DEPTH_SCALE: Scale for constant offset.
+ * REVERSE_DEPTH: Viewport depth range reversed.
+ *
+ * VERTEX: Hardware vertex type.
+ * GET_VERTEX(n): Retreive vertex with index n.
+ * AREA_IS_CCW(a): Return true if triangle with signed area a is ccw.
+ *
+ * VERT_SET_RGBA: Assign vertex rgba from VB color.
+ * VERT_COPY_RGBA: Copy vertex rgba another vertex.
+ * VERT_SAVE_RGBA: Save vertex rgba to a local variable.
+ * VERT_RESTORE_RGBA: Restore vertex rgba from a local variable.
+ * --> Similar for IND and SPEC.
+ *
+ * LOCAL_VARS(n): (At least) define local vars for save/restore rgba.
+ *
+ */
+
+#if HAVE_RGBA
+#define VERT_SET_IND( v, c ) (void) c
+#define VERT_COPY_IND( v0, v1 )
+#define VERT_SAVE_IND( idx )
+#define VERT_RESTORE_IND( idx )
+#if HAVE_BACK_COLORS
+#define VERT_SET_RGBA( v, c )
+#endif
+#else
+#define VERT_SET_RGBA( v, c ) (void) c
+#define VERT_COPY_RGBA( v0, v1 )
+#define VERT_SAVE_RGBA( idx )
+#define VERT_RESTORE_RGBA( idx )
+#if HAVE_BACK_COLORS
+#define VERT_SET_IND( v, c )
+#endif
+#endif
+
+#if !HAVE_SPEC
+#define VERT_SET_SPEC( v, c ) (void) c
+#define VERT_COPY_SPEC( v0, v1 )
+#define VERT_SAVE_SPEC( idx )
+#define VERT_RESTORE_SPEC( idx )
+#if HAVE_BACK_COLORS
+#define VERT_COPY_SPEC1( v )
+#endif
+#else
+#if HAVE_BACK_COLORS
+#define VERT_SET_SPEC( v, c )
+#endif
+#endif
+
+#if !HAVE_BACK_COLORS
+#define VERT_COPY_SPEC1( v )
+#define VERT_COPY_IND1( v )
+#define VERT_COPY_RGBA1( v )
+#endif
+
+#ifndef INSANE_VERTICES
+#define VERT_SET_Z(v,val) VERT_Z(v) = val
+#define VERT_Z_ADD(v,val) VERT_Z(v) += val
+#endif
+
+#ifndef REVERSE_DEPTH
+#define REVERSE_DEPTH 0
+#endif
+
+/* disable twostencil for un-aware drivers */
+#ifndef HAVE_STENCIL_TWOSIDE
+#define HAVE_STENCIL_TWOSIDE 0
+#endif
+#ifndef DO_TWOSTENCIL
+#define DO_TWOSTENCIL 0
+#endif
+#ifndef SETUP_STENCIL
+#define SETUP_STENCIL(f)
+#endif
+#ifndef UNSET_STENCIL
+#define UNSET_STENCIL(f)
+#endif
+
+#if DO_TRI
+static void TAG(triangle)( GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT( ctx )->vb;
+ VERTEX *v[3];
+ GLfloat offset = 0;
+ GLfloat z[3];
+ GLenum mode = GL_FILL;
+ GLuint facing = 0;
+ LOCAL_VARS(3);
+
+/* fprintf(stderr, "%s\n", __FUNCTION__); */
+
+ v[0] = (VERTEX *)GET_VERTEX(e0);
+ v[1] = (VERTEX *)GET_VERTEX(e1);
+ v[2] = (VERTEX *)GET_VERTEX(e2);
+
+ if (DO_TWOSIDE || DO_OFFSET || DO_UNFILLED || DO_TWOSTENCIL)
+ {
+ GLfloat ex = VERT_X(v[0]) - VERT_X(v[2]);
+ GLfloat ey = VERT_Y(v[0]) - VERT_Y(v[2]);
+ GLfloat fx = VERT_X(v[1]) - VERT_X(v[2]);
+ GLfloat fy = VERT_Y(v[1]) - VERT_Y(v[2]);
+ GLfloat cc = ex*fy - ey*fx;
+
+ if (DO_TWOSIDE || DO_UNFILLED || DO_TWOSTENCIL)
+ {
+ facing = AREA_IS_CCW( cc ) ^ ctx->Polygon._FrontBit;
+
+ if (DO_TWOSTENCIL && ctx->Stencil.TestTwoSide) {
+ ctx->_Facing = facing; /* mixed mode rendering: for 2-sided stencil test */
+ }
+
+ if (DO_UNFILLED) {
+ if (facing) {
+ mode = ctx->Polygon.BackMode;
+ if (ctx->Polygon.CullFlag &&
+ ctx->Polygon.CullFaceMode != GL_FRONT) {
+ return;
+ }
+ } else {
+ mode = ctx->Polygon.FrontMode;
+ if (ctx->Polygon.CullFlag &&
+ ctx->Polygon.CullFaceMode != GL_BACK) {
+ return;
+ }
+ }
+ }
+
+ if (DO_TWOSIDE && facing == 1)
+ {
+ if (HAVE_RGBA) {
+ if (HAVE_BACK_COLORS) {
+ if (!DO_FLAT) {
+ VERT_SAVE_RGBA( 0 );
+ VERT_SAVE_RGBA( 1 );
+ VERT_COPY_RGBA1( v[0] );
+ VERT_COPY_RGBA1( v[1] );
+ }
+ VERT_SAVE_RGBA( 2 );
+ VERT_COPY_RGBA1( v[2] );
+ if (HAVE_SPEC) {
+ if (!DO_FLAT) {
+ VERT_SAVE_SPEC( 0 );
+ VERT_SAVE_SPEC( 1 );
+ VERT_COPY_SPEC1( v[0] );
+ VERT_COPY_SPEC1( v[1] );
+ }
+ VERT_SAVE_SPEC( 2 );
+ VERT_COPY_SPEC1( v[2] );
+ }
+ }
+ else {
+ GLfloat (*vbcolor)[4] = VB->ColorPtr[1]->data;
+ (void) vbcolor;
+
+ if (!DO_FLAT) {
+ VERT_SAVE_RGBA( 0 );
+ VERT_SAVE_RGBA( 1 );
+ }
+ VERT_SAVE_RGBA( 2 );
+
+ if (VB->ColorPtr[1]->stride) {
+ ASSERT(VB->ColorPtr[1]->stride == 4*sizeof(GLfloat));
+
+ if (!DO_FLAT) {
+ VERT_SET_RGBA( v[0], vbcolor[e0] );
+ VERT_SET_RGBA( v[1], vbcolor[e1] );
+ }
+ VERT_SET_RGBA( v[2], vbcolor[e2] );
+ }
+ else {
+ if (!DO_FLAT) {
+ VERT_SET_RGBA( v[0], vbcolor[0] );
+ VERT_SET_RGBA( v[1], vbcolor[0] );
+ }
+ VERT_SET_RGBA( v[2], vbcolor[0] );
+ }
+
+ if (HAVE_SPEC && VB->SecondaryColorPtr[1]) {
+ GLfloat (*vbspec)[4] = VB->SecondaryColorPtr[1]->data;
+ ASSERT(VB->SecondaryColorPtr[1]->stride == 4*sizeof(GLfloat));
+
+ if (!DO_FLAT) {
+ VERT_SAVE_SPEC( 0 );
+ VERT_SAVE_SPEC( 1 );
+ VERT_SET_SPEC( v[0], vbspec[e0] );
+ VERT_SET_SPEC( v[1], vbspec[e1] );
+ }
+ VERT_SAVE_SPEC( 2 );
+ VERT_SET_SPEC( v[2], vbspec[e2] );
+ }
+ }
+ }
+ else {
+ GLfloat (*vbindex) = (GLfloat *)VB->IndexPtr[1]->data;
+ if (!DO_FLAT) {
+ VERT_SAVE_IND( 0 );
+ VERT_SAVE_IND( 1 );
+ VERT_SET_IND( v[0], vbindex[e0] );
+ VERT_SET_IND( v[1], vbindex[e1] );
+ }
+ VERT_SAVE_IND( 2 );
+ VERT_SET_IND( v[2], vbindex[e2] );
+ }
+ }
+ }
+
+
+ if (DO_OFFSET)
+ {
+ offset = ctx->Polygon.OffsetUnits * DEPTH_SCALE;
+ z[0] = VERT_Z(v[0]);
+ z[1] = VERT_Z(v[1]);
+ z[2] = VERT_Z(v[2]);
+ if (cc * cc > 1e-16) {
+ GLfloat ic = 1.0 / cc;
+ GLfloat ez = z[0] - z[2];
+ GLfloat fz = z[1] - z[2];
+ GLfloat a = ey*fz - ez*fy;
+ GLfloat b = ez*fx - ex*fz;
+ GLfloat ac = a * ic;
+ GLfloat bc = b * ic;
+ if ( ac < 0.0f ) ac = -ac;
+ if ( bc < 0.0f ) bc = -bc;
+ offset += MAX2( ac, bc ) * ctx->Polygon.OffsetFactor;
+ }
+ offset *= ctx->DrawBuffer->_MRD * (REVERSE_DEPTH ? -1.0 : 1.0);
+ }
+ }
+
+ if (DO_FLAT) {
+ if (HAVE_RGBA) {
+ VERT_SAVE_RGBA( 0 );
+ VERT_SAVE_RGBA( 1 );
+ VERT_COPY_RGBA( v[0], v[2] );
+ VERT_COPY_RGBA( v[1], v[2] );
+ if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
+ VERT_SAVE_SPEC( 0 );
+ VERT_SAVE_SPEC( 1 );
+ VERT_COPY_SPEC( v[0], v[2] );
+ VERT_COPY_SPEC( v[1], v[2] );
+ }
+ }
+ else {
+ VERT_SAVE_IND( 0 );
+ VERT_SAVE_IND( 1 );
+ VERT_COPY_IND( v[0], v[2] );
+ VERT_COPY_IND( v[1], v[2] );
+ }
+ }
+
+ if (mode == GL_POINT) {
+ if (DO_OFFSET && ctx->Polygon.OffsetPoint) {
+ VERT_Z_ADD(v[0], offset);
+ VERT_Z_ADD(v[1], offset);
+ VERT_Z_ADD(v[2], offset);
+ }
+ if (DO_TWOSTENCIL && !HAVE_STENCIL_TWOSIDE && ctx->Stencil.TestTwoSide) {
+ SETUP_STENCIL(facing);
+ UNFILLED_TRI( ctx, GL_POINT, e0, e1, e2 );
+ UNSET_STENCIL(facing);
+ } else {
+ UNFILLED_TRI( ctx, GL_POINT, e0, e1, e2 );
+ }
+ } else if (mode == GL_LINE) {
+ if (DO_OFFSET && ctx->Polygon.OffsetLine) {
+ VERT_Z_ADD(v[0], offset);
+ VERT_Z_ADD(v[1], offset);
+ VERT_Z_ADD(v[2], offset);
+ }
+ if (DO_TWOSTENCIL && !HAVE_STENCIL_TWOSIDE && ctx->Stencil.TestTwoSide) {
+ SETUP_STENCIL(facing);
+ UNFILLED_TRI( ctx, GL_LINE, e0, e1, e2 );
+ UNSET_STENCIL(facing);
+ } else {
+ UNFILLED_TRI( ctx, GL_LINE, e0, e1, e2 );
+ }
+ } else {
+ if (DO_OFFSET && ctx->Polygon.OffsetFill) {
+ VERT_Z_ADD(v[0], offset);
+ VERT_Z_ADD(v[1], offset);
+ VERT_Z_ADD(v[2], offset);
+ }
+ if (DO_UNFILLED)
+ RASTERIZE( GL_TRIANGLES );
+ if (DO_TWOSTENCIL && !HAVE_STENCIL_TWOSIDE && ctx->Stencil.TestTwoSide) {
+ SETUP_STENCIL(facing);
+ TRI( v[0], v[1], v[2] );
+ UNSET_STENCIL(facing);
+ } else {
+ TRI( v[0], v[1], v[2] );
+ }
+ }
+
+ if (DO_OFFSET)
+ {
+ VERT_SET_Z(v[0], z[0]);
+ VERT_SET_Z(v[1], z[1]);
+ VERT_SET_Z(v[2], z[2]);
+ }
+
+ if (DO_TWOSIDE && facing == 1)
+ {
+ if (HAVE_RGBA) {
+ if (!DO_FLAT) {
+ VERT_RESTORE_RGBA( 0 );
+ VERT_RESTORE_RGBA( 1 );
+ }
+ VERT_RESTORE_RGBA( 2 );
+ if (HAVE_SPEC) {
+ if (!DO_FLAT) {
+ VERT_RESTORE_SPEC( 0 );
+ VERT_RESTORE_SPEC( 1 );
+ }
+ VERT_RESTORE_SPEC( 2 );
+ }
+ }
+ else {
+ if (!DO_FLAT) {
+ VERT_RESTORE_IND( 0 );
+ VERT_RESTORE_IND( 1 );
+ }
+ VERT_RESTORE_IND( 2 );
+ }
+ }
+
+
+ if (DO_FLAT) {
+ if (HAVE_RGBA) {
+ VERT_RESTORE_RGBA( 0 );
+ VERT_RESTORE_RGBA( 1 );
+ if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
+ VERT_RESTORE_SPEC( 0 );
+ VERT_RESTORE_SPEC( 1 );
+ }
+ }
+ else {
+ VERT_RESTORE_IND( 0 );
+ VERT_RESTORE_IND( 1 );
+ }
+ }
+}
+#endif
+
+#if DO_QUAD
+#if DO_FULL_QUAD
+static void TAG(quad)( GLcontext *ctx,
+ GLuint e0, GLuint e1, GLuint e2, GLuint e3 )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT( ctx )->vb;
+ VERTEX *v[4];
+ GLfloat offset = 0;
+ GLfloat z[4];
+ GLenum mode = GL_FILL;
+ GLuint facing = 0;
+ LOCAL_VARS(4);
+
+ v[0] = (VERTEX *)GET_VERTEX(e0);
+ v[1] = (VERTEX *)GET_VERTEX(e1);
+ v[2] = (VERTEX *)GET_VERTEX(e2);
+ v[3] = (VERTEX *)GET_VERTEX(e3);
+
+ if (DO_TWOSIDE || DO_OFFSET || DO_UNFILLED || DO_TWOSTENCIL)
+ {
+ GLfloat ex = VERT_X(v[2]) - VERT_X(v[0]);
+ GLfloat ey = VERT_Y(v[2]) - VERT_Y(v[0]);
+ GLfloat fx = VERT_X(v[3]) - VERT_X(v[1]);
+ GLfloat fy = VERT_Y(v[3]) - VERT_Y(v[1]);
+ GLfloat cc = ex*fy - ey*fx;
+
+ if (DO_TWOSIDE || DO_UNFILLED || DO_TWOSTENCIL)
+ {
+ facing = AREA_IS_CCW( cc ) ^ ctx->Polygon._FrontBit;
+
+ if (DO_TWOSTENCIL && ctx->Stencil.TestTwoSide) {
+ ctx->_Facing = facing; /* mixed mode rendering: for 2-sided stencil test */
+ }
+
+ if (DO_UNFILLED) {
+ if (facing) {
+ mode = ctx->Polygon.BackMode;
+ if (ctx->Polygon.CullFlag &&
+ ctx->Polygon.CullFaceMode != GL_FRONT) {
+ return;
+ }
+ } else {
+ mode = ctx->Polygon.FrontMode;
+ if (ctx->Polygon.CullFlag &&
+ ctx->Polygon.CullFaceMode != GL_BACK) {
+ return;
+ }
+ }
+ }
+
+ if (DO_TWOSIDE && facing == 1)
+ {
+ if (HAVE_RGBA) {
+ GLfloat (*vbcolor)[4] = VB->ColorPtr[1]->data;
+ (void)vbcolor;
+
+ if (HAVE_BACK_COLORS) {
+ if (!DO_FLAT) {
+ VERT_SAVE_RGBA( 0 );
+ VERT_SAVE_RGBA( 1 );
+ VERT_SAVE_RGBA( 2 );
+ VERT_COPY_RGBA1( v[0] );
+ VERT_COPY_RGBA1( v[1] );
+ VERT_COPY_RGBA1( v[2] );
+ }
+ VERT_SAVE_RGBA( 3 );
+ VERT_COPY_RGBA1( v[3] );
+ if (HAVE_SPEC) {
+ if (!DO_FLAT) {
+ VERT_SAVE_SPEC( 0 );
+ VERT_SAVE_SPEC( 1 );
+ VERT_SAVE_SPEC( 2 );
+ VERT_COPY_SPEC1( v[0] );
+ VERT_COPY_SPEC1( v[1] );
+ VERT_COPY_SPEC1( v[2] );
+ }
+ VERT_SAVE_SPEC( 3 );
+ VERT_COPY_SPEC1( v[3] );
+ }
+ }
+ else {
+ if (!DO_FLAT) {
+ VERT_SAVE_RGBA( 0 );
+ VERT_SAVE_RGBA( 1 );
+ VERT_SAVE_RGBA( 2 );
+ }
+ VERT_SAVE_RGBA( 3 );
+
+ if (VB->ColorPtr[1]->stride) {
+ if (!DO_FLAT) {
+ VERT_SET_RGBA( v[0], vbcolor[e0] );
+ VERT_SET_RGBA( v[1], vbcolor[e1] );
+ VERT_SET_RGBA( v[2], vbcolor[e2] );
+ }
+ VERT_SET_RGBA( v[3], vbcolor[e3] );
+ }
+ else {
+ if (!DO_FLAT) {
+ VERT_SET_RGBA( v[0], vbcolor[0] );
+ VERT_SET_RGBA( v[1], vbcolor[0] );
+ VERT_SET_RGBA( v[2], vbcolor[0] );
+ }
+ VERT_SET_RGBA( v[3], vbcolor[0] );
+ }
+
+ if (HAVE_SPEC && VB->SecondaryColorPtr[1]) {
+ GLfloat (*vbspec)[4] = VB->SecondaryColorPtr[1]->data;
+ ASSERT(VB->SecondaryColorPtr[1]->stride==4*sizeof(GLfloat));
+
+ if (!DO_FLAT) {
+ VERT_SAVE_SPEC( 0 );
+ VERT_SAVE_SPEC( 1 );
+ VERT_SAVE_SPEC( 2 );
+ VERT_SET_SPEC( v[0], vbspec[e0] );
+ VERT_SET_SPEC( v[1], vbspec[e1] );
+ VERT_SET_SPEC( v[2], vbspec[e2] );
+ }
+ VERT_SAVE_SPEC( 3 );
+ VERT_SET_SPEC( v[3], vbspec[e3] );
+ }
+ }
+ }
+ else {
+ GLfloat *vbindex = (GLfloat *)VB->IndexPtr[1]->data;
+ if (!DO_FLAT) {
+ VERT_SAVE_IND( 0 );
+ VERT_SAVE_IND( 1 );
+ VERT_SAVE_IND( 2 );
+ VERT_SET_IND( v[0], vbindex[e0] );
+ VERT_SET_IND( v[1], vbindex[e1] );
+ VERT_SET_IND( v[2], vbindex[e2] );
+ }
+ VERT_SAVE_IND( 3 );
+ VERT_SET_IND( v[3], vbindex[e3] );
+ }
+ }
+ }
+
+
+ if (DO_OFFSET)
+ {
+ offset = ctx->Polygon.OffsetUnits * DEPTH_SCALE;
+ z[0] = VERT_Z(v[0]);
+ z[1] = VERT_Z(v[1]);
+ z[2] = VERT_Z(v[2]);
+ z[3] = VERT_Z(v[3]);
+ if (cc * cc > 1e-16) {
+ GLfloat ez = z[2] - z[0];
+ GLfloat fz = z[3] - z[1];
+ GLfloat a = ey*fz - ez*fy;
+ GLfloat b = ez*fx - ex*fz;
+ GLfloat ic = 1.0 / cc;
+ GLfloat ac = a * ic;
+ GLfloat bc = b * ic;
+ if ( ac < 0.0f ) ac = -ac;
+ if ( bc < 0.0f ) bc = -bc;
+ offset += MAX2( ac, bc ) * ctx->Polygon.OffsetFactor;
+ }
+ offset *= ctx->DrawBuffer->_MRD * (REVERSE_DEPTH ? -1.0 : 1.0);
+ }
+ }
+
+ if (DO_FLAT) {
+ if (HAVE_RGBA) {
+ VERT_SAVE_RGBA( 0 );
+ VERT_SAVE_RGBA( 1 );
+ VERT_SAVE_RGBA( 2 );
+ VERT_COPY_RGBA( v[0], v[3] );
+ VERT_COPY_RGBA( v[1], v[3] );
+ VERT_COPY_RGBA( v[2], v[3] );
+ if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
+ VERT_SAVE_SPEC( 0 );
+ VERT_SAVE_SPEC( 1 );
+ VERT_SAVE_SPEC( 2 );
+ VERT_COPY_SPEC( v[0], v[3] );
+ VERT_COPY_SPEC( v[1], v[3] );
+ VERT_COPY_SPEC( v[2], v[3] );
+ }
+ }
+ else {
+ VERT_SAVE_IND( 0 );
+ VERT_SAVE_IND( 1 );
+ VERT_SAVE_IND( 2 );
+ VERT_COPY_IND( v[0], v[3] );
+ VERT_COPY_IND( v[1], v[3] );
+ VERT_COPY_IND( v[2], v[3] );
+ }
+ }
+
+ if (mode == GL_POINT) {
+ if (( DO_OFFSET) && ctx->Polygon.OffsetPoint) {
+ VERT_Z_ADD(v[0], offset);
+ VERT_Z_ADD(v[1], offset);
+ VERT_Z_ADD(v[2], offset);
+ VERT_Z_ADD(v[3], offset);
+ }
+ if (DO_TWOSTENCIL && !HAVE_STENCIL_TWOSIDE && ctx->Stencil.TestTwoSide) {
+ SETUP_STENCIL(facing);
+ UNFILLED_QUAD( ctx, GL_POINT, e0, e1, e2, e3 );
+ UNSET_STENCIL(facing);
+ } else {
+ UNFILLED_QUAD( ctx, GL_POINT, e0, e1, e2, e3 );
+ }
+ } else if (mode == GL_LINE) {
+ if (DO_OFFSET && ctx->Polygon.OffsetLine) {
+ VERT_Z_ADD(v[0], offset);
+ VERT_Z_ADD(v[1], offset);
+ VERT_Z_ADD(v[2], offset);
+ VERT_Z_ADD(v[3], offset);
+ }
+ if (DO_TWOSTENCIL && !HAVE_STENCIL_TWOSIDE && ctx->Stencil.TestTwoSide) {
+ SETUP_STENCIL(facing);
+ UNFILLED_QUAD( ctx, GL_LINE, e0, e1, e2, e3 );
+ UNSET_STENCIL(facing);
+ } else {
+ UNFILLED_QUAD( ctx, GL_LINE, e0, e1, e2, e3 );
+ }
+ } else {
+ if (DO_OFFSET && ctx->Polygon.OffsetFill) {
+ VERT_Z_ADD(v[0], offset);
+ VERT_Z_ADD(v[1], offset);
+ VERT_Z_ADD(v[2], offset);
+ VERT_Z_ADD(v[3], offset);
+ }
+ RASTERIZE( GL_QUADS );
+ if (DO_TWOSTENCIL && !HAVE_STENCIL_TWOSIDE && ctx->Stencil.TestTwoSide) {
+ SETUP_STENCIL(facing);
+ QUAD( (v[0]), (v[1]), (v[2]), (v[3]) );
+ UNSET_STENCIL(facing);
+ } else {
+ QUAD( (v[0]), (v[1]), (v[2]), (v[3]) );
+ }
+ }
+
+ if (DO_OFFSET)
+ {
+ VERT_SET_Z(v[0], z[0]);
+ VERT_SET_Z(v[1], z[1]);
+ VERT_SET_Z(v[2], z[2]);
+ VERT_SET_Z(v[3], z[3]);
+ }
+
+ if (DO_TWOSIDE && facing == 1)
+ {
+ if (HAVE_RGBA) {
+ if (!DO_FLAT) {
+ VERT_RESTORE_RGBA( 0 );
+ VERT_RESTORE_RGBA( 1 );
+ VERT_RESTORE_RGBA( 2 );
+ }
+ VERT_RESTORE_RGBA( 3 );
+ if (HAVE_SPEC) {
+ if (!DO_FLAT) {
+ VERT_RESTORE_SPEC( 0 );
+ VERT_RESTORE_SPEC( 1 );
+ VERT_RESTORE_SPEC( 2 );
+ }
+ VERT_RESTORE_SPEC( 3 );
+ }
+ }
+ else {
+ if (!DO_FLAT) {
+ VERT_RESTORE_IND( 0 );
+ VERT_RESTORE_IND( 1 );
+ VERT_RESTORE_IND( 2 );
+ }
+ VERT_RESTORE_IND( 3 );
+ }
+ }
+
+
+ if (DO_FLAT) {
+ if (HAVE_RGBA) {
+ VERT_RESTORE_RGBA( 0 );
+ VERT_RESTORE_RGBA( 1 );
+ VERT_RESTORE_RGBA( 2 );
+ if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
+ VERT_RESTORE_SPEC( 0 );
+ VERT_RESTORE_SPEC( 1 );
+ VERT_RESTORE_SPEC( 2 );
+ }
+ }
+ else {
+ VERT_RESTORE_IND( 0 );
+ VERT_RESTORE_IND( 1 );
+ VERT_RESTORE_IND( 2 );
+ }
+ }
+}
+#else
+static void TAG(quad)( GLcontext *ctx, GLuint e0,
+ GLuint e1, GLuint e2, GLuint e3 )
+{
+ if (DO_UNFILLED) {
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ GLubyte ef1 = VB->EdgeFlag[e1];
+ GLubyte ef3 = VB->EdgeFlag[e3];
+ VB->EdgeFlag[e1] = 0;
+ TAG(triangle)( ctx, e0, e1, e3 );
+ VB->EdgeFlag[e1] = ef1;
+ VB->EdgeFlag[e3] = 0;
+ TAG(triangle)( ctx, e1, e2, e3 );
+ VB->EdgeFlag[e3] = ef3;
+ } else {
+ TAG(triangle)( ctx, e0, e1, e3 );
+ TAG(triangle)( ctx, e1, e2, e3 );
+ }
+}
+#endif
+#endif
+
+#if DO_LINE
+static void TAG(line)( GLcontext *ctx, GLuint e0, GLuint e1 )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ VERTEX *v[2];
+ LOCAL_VARS(2);
+
+ v[0] = (VERTEX *)GET_VERTEX(e0);
+ v[1] = (VERTEX *)GET_VERTEX(e1);
+
+ if (DO_FLAT) {
+ if (HAVE_RGBA) {
+ VERT_SAVE_RGBA( 0 );
+ VERT_COPY_RGBA( v[0], v[1] );
+ if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
+ VERT_SAVE_SPEC( 0 );
+ VERT_COPY_SPEC( v[0], v[1] );
+ }
+ }
+ else {
+ VERT_SAVE_IND( 0 );
+ VERT_COPY_IND( v[0], v[1] );
+ }
+ }
+
+ LINE( v[0], v[1] );
+
+ if (DO_FLAT) {
+ if (HAVE_RGBA) {
+ VERT_RESTORE_RGBA( 0 );
+
+ if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
+ VERT_RESTORE_SPEC( 0 );
+ }
+ }
+ else {
+ VERT_RESTORE_IND( 0 );
+ }
+ }
+}
+#endif
+
+#if DO_POINTS
+static void TAG(points)( GLcontext *ctx, GLuint first, GLuint last )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT( ctx )->vb;
+ GLuint i;
+ LOCAL_VARS(1);
+
+ if (VB->Elts == 0) {
+ for ( i = first ; i < last ; i++ ) {
+ if ( VB->ClipMask[i] == 0 ) {
+ VERTEX *v = (VERTEX *)GET_VERTEX(i);
+ POINT( v );
+ }
+ }
+ } else {
+ for ( i = first ; i < last ; i++ ) {
+ GLuint e = VB->Elts[i];
+ if ( VB->ClipMask[e] == 0 ) {
+ VERTEX *v = (VERTEX *)GET_VERTEX(e);
+ POINT( v );
+ }
+ }
+ }
+}
+#endif
+
+static void TAG(init)( void )
+{
+#if DO_QUAD
+ TAB[IND].quad = TAG(quad);
+#endif
+#if DO_TRI
+ TAB[IND].triangle = TAG(triangle);
+#endif
+#if DO_LINE
+ TAB[IND].line = TAG(line);
+#endif
+#if DO_POINTS
+ TAB[IND].points = TAG(points);
+#endif
+}
+
+#undef IND
+#undef TAG
+
+#if HAVE_RGBA
+#undef VERT_SET_IND
+#undef VERT_COPY_IND
+#undef VERT_SAVE_IND
+#undef VERT_RESTORE_IND
+#if HAVE_BACK_COLORS
+#undef VERT_SET_RGBA
+#endif
+#else
+#undef VERT_SET_RGBA
+#undef VERT_COPY_RGBA
+#undef VERT_SAVE_RGBA
+#undef VERT_RESTORE_RGBA
+#if HAVE_BACK_COLORS
+#undef VERT_SET_IND
+#endif
+#endif
+
+#if !HAVE_SPEC
+#undef VERT_SET_SPEC
+#undef VERT_COPY_SPEC
+#undef VERT_SAVE_SPEC
+#undef VERT_RESTORE_SPEC
+#if HAVE_BACK_COLORS
+#undef VERT_COPY_SPEC1
+#endif
+#else
+#if HAVE_BACK_COLORS
+#undef VERT_SET_SPEC
+#endif
+#endif
+
+#if !HAVE_BACK_COLORS
+#undef VERT_COPY_SPEC1
+#undef VERT_COPY_IND1
+#undef VERT_COPY_RGBA1
+#endif
+
+#ifndef INSANE_VERTICES
+#undef VERT_SET_Z
+#undef VERT_Z_ADD
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 11:24:08 +0000