static void emit_header( const float *attrib,
float **out )
{
- (*out)[0] = 0;
+ struct vertex_header *header = (struct vertex_header *) (*out);
+
+ header->clipmask = 0;
+ header->edgeflag = 1;
+ header->pad = 0;
+ header->vertex_id = UNDEFINED_VERTEX_ID;
+
(*out)[1] = 0;
(*out)[2] = 0;
(*out)[3] = 0;
-/**
- * Add a point to the primitive queue.
- * \param i0 index into user's vertex arrays
- */
-static void do_point( struct draw_context *draw,
- const char *v0 )
-{
- struct prim_header prim;
-
- prim.reset_line_stipple = 0;
- prim.edgeflags = 1;
- prim.pad = 0;
- prim.v[0] = (struct vertex_header *)v0;
-
- draw->pipeline.first->point( draw->pipeline.first, &prim );
-}
-
-
-/**
- * Add a line to the primitive queue.
- * \param i0 index into user's vertex arrays
- * \param i1 index into user's vertex arrays
- */
-static void do_line( struct draw_context *draw,
- const char *v0,
- const char *v1 )
-{
- struct prim_header prim;
-
- prim.reset_line_stipple = 1; /* fixme */
- prim.edgeflags = 1;
- prim.pad = 0;
- prim.v[0] = (struct vertex_header *)v0;
- prim.v[1] = (struct vertex_header *)v1;
-
- draw->pipeline.first->line( draw->pipeline.first, &prim );
-}
-
-/**
- * Add a triangle to the primitive queue.
- */
-static void do_triangle( struct draw_context *draw,
- char *v0,
- char *v1,
- char *v2 )
-{
- struct prim_header prim;
-
-// _mesa_printf("tri %d %d %d\n", i0, i1, i2);
- prim.reset_line_stipple = 1;
- prim.edgeflags = ~0;
- prim.pad = 0;
- prim.v[0] = (struct vertex_header *)v0;
- prim.v[1] = (struct vertex_header *)v1;
- prim.v[2] = (struct vertex_header *)v2;
-
- draw->pipeline.first->tri( draw->pipeline.first, &prim );
-}
-
-
-static void run_pipeline( struct fetch_pipeline_middle_end *fpme,
- char *verts,
- const ushort *elts,
- unsigned count )
-{
- struct draw_context *draw = fpme->draw;
- unsigned stride = fpme->pipeline_vertex_size;
- unsigned i;
-
- switch (fpme->prim) {
- case PIPE_PRIM_POINTS:
- for (i = 0; i < count; i++)
- do_point( draw,
- verts + stride * elts[i] );
- break;
- case PIPE_PRIM_LINES:
- for (i = 0; i+1 < count; i += 2)
- do_line( draw,
- verts + stride * elts[i+0],
- verts + stride * elts[i+1]);
- break;
- case PIPE_PRIM_TRIANGLES:
- for (i = 0; i+2 < count; i += 3)
- do_triangle( draw,
- verts + stride * elts[i+0],
- verts + stride * elts[i+1],
- verts + stride * elts[i+2]);
- break;
- }
-}
-
-
-
static void fetch_pipeline_run( struct draw_pt_middle_end *middle,
const unsigned *fetch_elts,
fetch_count );
- run_pipeline( fpme,
- pipeline_verts,
- draw_elts,
- draw_count );
+ /* Run the pipeline
+ */
+ draw_pt_run_pipeline( fpme->draw,
+ fpme->prim,
+ pipeline_verts,
+ fpme->pipeline_vertex_size,
+ fetch_count,
+ draw_elts,
+ draw_count );
/* Done -- that was easy, wasn't it:
--- /dev/null
+/**************************************************************************
+ *
+ * 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 "pipe/p_util.h"
+#include "draw/draw_context.h"
+#include "draw/draw_private.h"
+#include "draw/draw_vertex.h"
+#include "draw/draw_pt.h"
+
+
+/**
+ * Add a point to the primitive queue.
+ * \param i0 index into user's vertex arrays
+ */
+static void do_point( struct draw_context *draw,
+ const char *v0 )
+{
+ struct prim_header prim;
+
+ prim.reset_line_stipple = 0;
+ prim.edgeflags = 1;
+ prim.pad = 0;
+ prim.v[0] = (struct vertex_header *)v0;
+
+ draw->pipeline.first->point( draw->pipeline.first, &prim );
+}
+
+
+/**
+ * Add a line to the primitive queue.
+ * \param i0 index into user's vertex arrays
+ * \param i1 index into user's vertex arrays
+ */
+static void do_line( struct draw_context *draw,
+ const char *v0,
+ const char *v1 )
+{
+ struct prim_header prim;
+
+ prim.reset_line_stipple = 1; /* fixme */
+ prim.edgeflags = 1;
+ prim.pad = 0;
+ prim.v[0] = (struct vertex_header *)v0;
+ prim.v[1] = (struct vertex_header *)v1;
+
+ draw->pipeline.first->line( draw->pipeline.first, &prim );
+}
+
+/**
+ * Add a triangle to the primitive queue.
+ */
+static void do_triangle( struct draw_context *draw,
+ char *v0,
+ char *v1,
+ char *v2 )
+{
+ struct prim_header prim;
+
+// _mesa_printf("tri %d %d %d\n", i0, i1, i2);
+ prim.reset_line_stipple = 1;
+ prim.edgeflags = ~0;
+ prim.pad = 0;
+ prim.v[0] = (struct vertex_header *)v0;
+ prim.v[1] = (struct vertex_header *)v1;
+ prim.v[2] = (struct vertex_header *)v2;
+
+ draw->pipeline.first->tri( draw->pipeline.first, &prim );
+}
+
+
+
+void draw_pt_reset_vertex_ids( struct draw_context *draw )
+{
+ unsigned i;
+ char *verts = draw->pt.pipeline.verts;
+ unsigned stride = draw->pt.pipeline.vertex_stride;
+
+ for (i = 0; i < draw->pt.pipeline.vertex_count; i++) {
+ ((struct vertex_header *)verts)->vertex_id = UNDEFINED_VERTEX_ID;
+ verts += stride;
+ }
+}
+
+
+/* Code to run the pipeline on a fairly arbitary collection of vertices.
+ *
+ * Vertex headers must be pre-initialized with the
+ * UNDEFINED_VERTEX_ID, this code will cause that id to become
+ * overwritten, so it may have to be reset if there is the intention
+ * to reuse the vertices.
+ *
+ * This code provides a callback to reset the vertex id's which the
+ * draw_vbuf.c code uses when it has to perform a flush.
+ */
+void draw_pt_run_pipeline( struct draw_context *draw,
+ unsigned prim,
+ char *verts,
+ unsigned stride,
+ unsigned vertex_count,
+ const ushort *elts,
+ unsigned count )
+{
+ unsigned i;
+
+ draw->pt.pipeline.verts = verts;
+ draw->pt.pipeline.vertex_stride = stride;
+ draw->pt.pipeline.vertex_count = vertex_count;
+
+ switch (prim) {
+ case PIPE_PRIM_POINTS:
+ for (i = 0; i < count; i++)
+ do_point( draw,
+ verts + stride * elts[i] );
+ break;
+ case PIPE_PRIM_LINES:
+ for (i = 0; i+1 < count; i += 2)
+ do_line( draw,
+ verts + stride * elts[i+0],
+ verts + stride * elts[i+1]);
+ break;
+ case PIPE_PRIM_TRIANGLES:
+ for (i = 0; i+2 < count; i += 3)
+ do_triangle( draw,
+ verts + stride * elts[i+0],
+ verts + stride * elts[i+1],
+ verts + stride * elts[i+2]);
+ break;
+ }
+
+ draw->pt.pipeline.verts = NULL;
+ draw->pt.pipeline.vertex_count = 0;
+}
+
projects / mesa.git / commitdiff