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authorKeith Whitwell <keith@tungstengraphics.com>2007-06-14 18:11:48 +0100
committerKeith Whitwell <keith@tungstengraphics.com>2007-06-14 18:11:48 +0100
commit6393cda6766b707ef01e925d378239a66d143ae0 (patch)
tree31b5c8cc27ee16b142e27c42d5cb69f2fe9826d2 /src/mesa/pipe/softpipe/g_prim_unfilled.c
parent7050a4a7bc779b2c30fbd8244d4e77e6bd3dc30f (diff)
Renamed softpipe directories and files to something less confusing.
softpipe/state_tracker --> state_tracker/ softpipe/ --> pipe/ softpipe/generic --> pipe/softpipe/ I don't think pipe is a great name, but I disliked all the others too. Luckily it's fairly easy to rename with git, so this can be revisited later.
Diffstat (limited to 'src/mesa/pipe/softpipe/g_prim_unfilled.c')
-rw-r--r--src/mesa/pipe/softpipe/g_prim_unfilled.c165
1 files changed, 165 insertions, 0 deletions
diff --git a/src/mesa/pipe/softpipe/g_prim_unfilled.c b/src/mesa/pipe/softpipe/g_prim_unfilled.c
new file mode 100644
index 0000000000..7c6ee79f92
--- /dev/null
+++ b/src/mesa/pipe/softpipe/g_prim_unfilled.c
@@ -0,0 +1,165 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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>
+ */
+#include "imports.h"
+
+#include "g_context.h"
+#include "g_prim.h"
+
+
+
+struct unfilled_stage {
+ struct prim_stage stage;
+
+ GLuint mode[2];
+};
+
+
+static INLINE struct unfilled_stage *unfilled_stage( struct prim_stage *stage )
+{
+ return (struct unfilled_stage *)stage;
+}
+
+
+static void unfilled_begin( struct prim_stage *stage )
+{
+ struct unfilled_stage *unfilled = unfilled_stage(stage);
+
+ unfilled->mode[0] = stage->generic->setup.fill_ccw;
+ unfilled->mode[1] = stage->generic->setup.fill_cw;
+
+ stage->next->begin( stage->next );
+}
+
+static void point( struct prim_stage *stage,
+ struct vertex_header *v0 )
+{
+ struct prim_header tmp;
+ tmp.v[0] = v0;
+ stage->next->point( stage->next, &tmp );
+}
+
+static void line( struct prim_stage *stage,
+ struct vertex_header *v0,
+ struct vertex_header *v1 )
+{
+ struct prim_header tmp;
+ tmp.v[0] = v0;
+ tmp.v[1] = v1;
+ stage->next->line( stage->next, &tmp );
+}
+
+
+static void points( struct prim_stage *stage,
+ struct prim_header *header )
+{
+ struct vertex_header *v0 = header->v[0];
+ struct vertex_header *v1 = header->v[1];
+ struct vertex_header *v2 = header->v[2];
+
+ if (v0->edgeflag) point( stage, v0 );
+ if (v1->edgeflag) point( stage, v1 );
+ if (v2->edgeflag) point( stage, v2 );
+}
+
+static void lines( struct prim_stage *stage,
+ struct prim_header *header )
+{
+ struct vertex_header *v0 = header->v[0];
+ struct vertex_header *v1 = header->v[1];
+ struct vertex_header *v2 = header->v[2];
+
+ if (v0->edgeflag) line( stage, v0, v1 );
+ if (v1->edgeflag) line( stage, v1, v2 );
+ if (v2->edgeflag) line( stage, v2, v0 );
+}
+
+
+/* Unfilled tri:
+ *
+ * Note edgeflags in the vertex struct is not sufficient as we will
+ * need to manipulate them when decomposing primitives???
+ */
+static void unfilled_tri( struct prim_stage *stage,
+ struct prim_header *header )
+{
+ struct unfilled_stage *unfilled = unfilled_stage(stage);
+ GLuint mode = unfilled->mode[header->det < 0];
+
+ switch (mode) {
+ case FILL_TRI:
+ stage->next->tri( stage->next, header );
+ break;
+
+ case FILL_LINE:
+ lines( stage, header );
+ break;
+
+ case GL_POINT:
+ points( stage, header );
+ break;
+ }
+}
+
+static void unfilled_line( struct prim_stage *stage,
+ struct prim_header *header )
+{
+ stage->next->line( stage->next, header );
+}
+
+
+static void unfilled_point( struct prim_stage *stage,
+ struct prim_header *header )
+{
+ stage->next->point( stage->next, header );
+}
+
+
+static void unfilled_end( struct prim_stage *stage )
+{
+ stage->next->end( stage->next );
+}
+
+struct prim_stage *prim_unfilled( struct generic_context *generic )
+{
+ struct unfilled_stage *unfilled = CALLOC_STRUCT(unfilled_stage);
+
+ prim_alloc_tmps( &unfilled->stage, 0 );
+
+ unfilled->stage.generic = generic;
+ unfilled->stage.next = NULL;
+ unfilled->stage.tmp = NULL;
+ unfilled->stage.begin = unfilled_begin;
+ unfilled->stage.point = unfilled_point;
+ unfilled->stage.line = unfilled_line;
+ unfilled->stage.tri = unfilled_tri;
+ unfilled->stage.end = unfilled_end;
+
+ return &unfilled->stage;
+}