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-rw-r--r--src/mesa/tnl_dd/t_dd_rendertmp.h437
1 files changed, 437 insertions, 0 deletions
diff --git a/src/mesa/tnl_dd/t_dd_rendertmp.h b/src/mesa/tnl_dd/t_dd_rendertmp.h
new file mode 100644
index 0000000000..fc00e76934
--- /dev/null
+++ b/src/mesa/tnl_dd/t_dd_rendertmp.h
@@ -0,0 +1,437 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * Copyright (C) 1999-2001 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>
+ */
+
+
+#ifndef POSTFIX
+#define POSTFIX
+#endif
+
+#ifndef INIT
+#define INIT(x)
+#endif
+
+#ifndef NEED_EDGEFLAG_SETUP
+#define NEED_EDGEFLAG_SETUP 0
+#define EDGEFLAG_GET(a) 0
+#define EDGEFLAG_SET(a,b) (void)b
+#endif
+
+#ifndef RESET_STIPPLE
+#define RESET_STIPPLE
+#endif
+
+#ifndef RESET_OCCLUSION
+#define RESET_OCCLUSION
+#endif
+
+#ifndef TEST_PRIM_END
+#define TEST_PRIM_END(flags) (flags & PRIM_END)
+#define TEST_PRIM_BEGIN(flags) (flags & PRIM_BEGIN)
+#define TEST_PRIM_PARITY(flags) (flags & PRIM_PARITY)
+#endif
+
+#ifndef ELT
+#define ELT(x) x
+#endif
+
+#ifndef RENDER_TAB_QUALIFIER
+#define RENDER_TAB_QUALIFIER static
+#endif
+
+static void TAG(render_points)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ LOCAL_VARS;
+ (void) flags;
+
+ RESET_OCCLUSION;
+ INIT(GL_POINTS);
+ RENDER_POINTS( start, count );
+ POSTFIX;
+}
+
+static void TAG(render_lines)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint j;
+ LOCAL_VARS;
+ (void) flags;
+
+ RESET_OCCLUSION;
+ INIT(GL_LINES);
+ for (j=start+1; j<count; j+=2 ) {
+ RENDER_LINE( ELT(j-1), ELT(j) );
+ RESET_STIPPLE;
+ }
+ POSTFIX;
+}
+
+
+static void TAG(render_line_strip)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint j;
+ LOCAL_VARS;
+ (void) flags;
+
+ RESET_OCCLUSION;
+ INIT(GL_LINE_STRIP);
+
+ for (j=start+1; j<count; j++ )
+ RENDER_LINE( ELT(j-1), ELT(j) );
+
+ if (TEST_PRIM_END(flags))
+ RESET_STIPPLE;
+
+ POSTFIX;
+}
+
+
+static void TAG(render_line_loop)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint i;
+ LOCAL_VARS;
+
+ (void) flags;
+
+ RESET_OCCLUSION;
+ INIT(GL_LINE_LOOP);
+
+ if (start+1 < count) {
+ if (TEST_PRIM_BEGIN(flags)) {
+ RENDER_LINE( ELT(start), ELT(start+1) );
+ }
+
+ for ( i = start+2 ; i < count ; i++) {
+ RENDER_LINE( ELT(i-1), ELT(i) );
+ }
+
+ if ( TEST_PRIM_END(flags)) {
+ RENDER_LINE( ELT(count-1), ELT(start) );
+ RESET_STIPPLE;
+ }
+ }
+
+ POSTFIX;
+}
+
+
+static void TAG(render_triangles)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint j;
+ LOCAL_VARS;
+ (void) flags;
+
+ INIT(GL_TRIANGLES);
+ if (NEED_EDGEFLAG_SETUP) {
+ for (j=start+2; j<count; j+=3) {
+ /* Leave the edgeflags as supplied by the user.
+ */
+ RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) );
+ RESET_STIPPLE;
+ }
+ } else {
+ for (j=start+2; j<count; j+=3) {
+ RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) );
+ }
+ }
+ POSTFIX;
+}
+
+
+
+static void TAG(render_tri_strip)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint j;
+ GLuint parity = 0;
+ LOCAL_VARS;
+
+ if (TEST_PRIM_PARITY(flags))
+ parity = 1;
+
+ INIT(GL_TRIANGLE_STRIP);
+ if (NEED_EDGEFLAG_SETUP) {
+ for (j=start+2;j<count;j++,parity^=1) {
+ GLuint ej2 = ELT(j-2+parity);
+ GLuint ej1 = ELT(j-1-parity);
+ GLuint ej = ELT(j);
+ GLboolean ef2 = EDGEFLAG_GET( ej2 );
+ GLboolean ef1 = EDGEFLAG_GET( ej1 );
+ GLboolean ef = EDGEFLAG_GET( ej );
+ EDGEFLAG_SET( ej2, GL_TRUE );
+ EDGEFLAG_SET( ej1, GL_TRUE );
+ EDGEFLAG_SET( ej, GL_TRUE );
+ RENDER_TRI( ej2, ej1, ej );
+ EDGEFLAG_SET( ej2, ef2 );
+ EDGEFLAG_SET( ej1, ef1 );
+ EDGEFLAG_SET( ej, ef );
+ RESET_STIPPLE;
+ }
+ } else {
+ for (j=start+2; j<count ; j++, parity^=1) {
+ RENDER_TRI( ELT(j-2+parity), ELT(j-1-parity), ELT(j) );
+ }
+ }
+ POSTFIX;
+}
+
+
+static void TAG(render_tri_fan)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint j;
+ LOCAL_VARS;
+ (void) flags;
+
+ INIT(GL_TRIANGLE_FAN);
+ if (NEED_EDGEFLAG_SETUP) {
+ for (j=start+2;j<count;j++) {
+ /* For trifans, all edges are boundary.
+ */
+ GLuint ejs = ELT(start);
+ GLuint ej1 = ELT(j-1);
+ GLuint ej = ELT(j);
+ GLboolean efs = EDGEFLAG_GET( ejs );
+ GLboolean ef1 = EDGEFLAG_GET( ej1 );
+ GLboolean ef = EDGEFLAG_GET( ej );
+ EDGEFLAG_SET( ejs, GL_TRUE );
+ EDGEFLAG_SET( ej1, GL_TRUE );
+ EDGEFLAG_SET( ej, GL_TRUE );
+ RENDER_TRI( ejs, ej1, ej);
+ EDGEFLAG_SET( ejs, efs );
+ EDGEFLAG_SET( ej1, ef1 );
+ EDGEFLAG_SET( ej, ef );
+ RESET_STIPPLE;
+ }
+ } else {
+ for (j=start+2;j<count;j++) {
+ RENDER_TRI( ELT(start), ELT(j-1), ELT(j) );
+ }
+ }
+
+ POSTFIX;
+}
+
+
+static void TAG(render_poly)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint j = start+2;
+ LOCAL_VARS;
+ (void) flags;
+
+ INIT(GL_POLYGON);
+ if (NEED_EDGEFLAG_SETUP) {
+ GLboolean efstart = EDGEFLAG_GET( ELT(start) );
+ GLboolean efcount = EDGEFLAG_GET( ELT(count-1) );
+
+ /* If the primitive does not begin here, the first edge
+ * is non-boundary.
+ */
+ if (!TEST_PRIM_BEGIN(flags))
+ EDGEFLAG_SET( ELT(start), GL_FALSE );
+
+ /* If the primitive does not end here, the final edge is
+ * non-boundary.
+ */
+ if (!TEST_PRIM_END(flags))
+ EDGEFLAG_SET( ELT(count-1), GL_FALSE );
+
+ /* Draw the first triangles (possibly zero)
+ */
+ if (j<count-1) {
+ GLboolean ef = EDGEFLAG_GET( ELT(j) );
+ EDGEFLAG_SET( ELT(j), GL_FALSE );
+ RENDER_TRI( ELT(j-1), ELT(j), ELT(start) );
+ EDGEFLAG_SET( ELT(j), ef );
+ j++;
+
+ /* Don't render the first edge again:
+ */
+ EDGEFLAG_SET( ELT(start), GL_FALSE );
+
+ for (;j<count-1;j++) {
+ GLboolean efj = EDGEFLAG_GET( ELT(j) );
+ EDGEFLAG_SET( ELT(j), GL_FALSE );
+ RENDER_TRI( ELT(j-1), ELT(j), ELT(start) );
+ EDGEFLAG_SET( ELT(j), efj );
+ }
+ }
+
+ /* Draw the last or only triangle
+ */
+ if (j < count)
+ RENDER_TRI( ELT(j-1), ELT(j), ELT(start) );
+
+ /* Restore the first and last edgeflags:
+ */
+ EDGEFLAG_SET( ELT(count-1), efcount );
+ EDGEFLAG_SET( ELT(start), efstart );
+
+ if (TEST_PRIM_END(flags)) {
+ RESET_STIPPLE;
+ }
+ }
+ else {
+ for (j=start+2;j<count;j++) {
+ RENDER_TRI( ELT(j-1), ELT(j), ELT(start) );
+ }
+ }
+ POSTFIX;
+}
+
+static void TAG(render_quads)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint j;
+ LOCAL_VARS;
+ (void) flags;
+
+ INIT(GL_QUADS);
+ if (NEED_EDGEFLAG_SETUP) {
+ for (j=start+3; j<count; j+=4) {
+ /* Use user-specified edgeflags for quads.
+ */
+ RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) );
+ RESET_STIPPLE;
+ }
+ } else {
+ for (j=start+3; j<count; j+=4) {
+ RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) );
+ }
+ }
+ POSTFIX;
+}
+
+static void TAG(render_quad_strip)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ GLuint j;
+ LOCAL_VARS;
+ (void) flags;
+
+ INIT(GL_QUAD_STRIP);
+ if (NEED_EDGEFLAG_SETUP) {
+ for (j=start+3;j<count;j+=2) {
+ /* All edges are boundary. Set edgeflags to 1, draw the
+ * quad, and restore them to the original values.
+ */
+ GLboolean ef3 = EDGEFLAG_GET( ELT(j-3) );
+ GLboolean ef2 = EDGEFLAG_GET( ELT(j-2) );
+ GLboolean ef1 = EDGEFLAG_GET( ELT(j-1) );
+ GLboolean ef = EDGEFLAG_GET( ELT(j) );
+ EDGEFLAG_SET( ELT(j-3), GL_TRUE );
+ EDGEFLAG_SET( ELT(j-2), GL_TRUE );
+ EDGEFLAG_SET( ELT(j-1), GL_TRUE );
+ EDGEFLAG_SET( ELT(j), GL_TRUE );
+ RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) );
+ EDGEFLAG_SET( ELT(j-3), ef3 );
+ EDGEFLAG_SET( ELT(j-2), ef2 );
+ EDGEFLAG_SET( ELT(j-1), ef1 );
+ EDGEFLAG_SET( ELT(j), ef );
+ RESET_STIPPLE;
+ }
+ } else {
+ for (j=start+3;j<count;j+=2) {
+ RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) );
+ }
+ }
+ POSTFIX;
+}
+
+static void TAG(render_noop)( GLcontext *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ (void)(ctx && start && count && flags);
+}
+
+RENDER_TAB_QUALIFIER void (*TAG(render_tab)[GL_POLYGON+2])(GLcontext *,
+ GLuint,
+ GLuint,
+ GLuint) =
+{
+ TAG(render_points),
+ TAG(render_lines),
+ TAG(render_line_loop),
+ TAG(render_line_strip),
+ TAG(render_triangles),
+ TAG(render_tri_strip),
+ TAG(render_tri_fan),
+ TAG(render_quads),
+ TAG(render_quad_strip),
+ TAG(render_poly),
+ TAG(render_noop),
+};
+
+
+
+#ifndef PRESERVE_VB_DEFS
+#undef RENDER_TRI
+#undef RENDER_QUAD
+#undef RENDER_LINE
+#undef RENDER_POINTS
+#undef LOCAL_VARS
+#undef INIT
+#undef POSTFIX
+#undef RESET_STIPPLE
+#undef DBG
+#undef ELT
+#undef RENDER_TAB_QUALIFIER
+#endif
+
+#ifndef PRESERVE_TAG
+#undef TAG
+#endif
+
+#undef PRESERVE_VB_DEFS
+#undef PRESERVE_TAG
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