summaryrefslogtreecommitdiff
path: root/src/gallium/auxiliary/draw/draw_pt_varray.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt_varray.c')
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_varray.c250
1 files changed, 250 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_varray.c b/src/gallium/auxiliary/draw/draw_pt_varray.c
new file mode 100644
index 0000000000..c85d8ded50
--- /dev/null
+++ b/src/gallium/auxiliary/draw/draw_pt_varray.c
@@ -0,0 +1,250 @@
+/**************************************************************************
+ *
+ * Copyright 2008 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.
+ *
+ **************************************************************************/
+
+#include "pipe/p_util.h"
+#include "draw/draw_context.h"
+#include "draw/draw_private.h"
+#include "draw/draw_pt.h"
+
+#define FETCH_MAX 256
+#define DRAW_MAX (16*FETCH_MAX)
+
+struct varray_frontend {
+ struct draw_pt_front_end base;
+ struct draw_context *draw;
+
+ ushort draw_elts[DRAW_MAX];
+ unsigned fetch_elts[FETCH_MAX];
+
+ unsigned draw_count;
+ unsigned fetch_count;
+
+ struct draw_pt_middle_end *middle;
+
+ unsigned input_prim;
+ unsigned output_prim;
+};
+
+static void varray_flush(struct varray_frontend *varray)
+{
+ if (varray->draw_count) {
+#if 0
+ debug_printf("FLUSH fc = %d, dc = %d\n",
+ varray->fetch_count,
+ varray->draw_count);
+#endif
+ varray->middle->run(varray->middle,
+ varray->fetch_elts,
+ varray->fetch_count,
+ varray->draw_elts,
+ varray->draw_count);
+ }
+
+ varray->fetch_count = 0;
+ varray->draw_count = 0;
+}
+
+#if 0
+static void varray_check_flush(struct varray_frontend *varray)
+{
+ if (varray->draw_count + 6 >= DRAW_MAX/* ||
+ varray->fetch_count + 4 >= FETCH_MAX*/) {
+ varray_flush(varray);
+ }
+}
+#endif
+
+static INLINE void add_draw_el(struct varray_frontend *varray,
+ int idx, ushort flags)
+{
+ varray->draw_elts[varray->draw_count++] = idx | flags;
+}
+
+
+static INLINE void varray_triangle( struct varray_frontend *varray,
+ unsigned i0,
+ unsigned i1,
+ unsigned i2 )
+{
+ add_draw_el(varray, i0, 0);
+ add_draw_el(varray, i1, 0);
+ add_draw_el(varray, i2, 0);
+}
+
+static INLINE void varray_triangle_flags( struct varray_frontend *varray,
+ ushort flags,
+ unsigned i0,
+ unsigned i1,
+ unsigned i2 )
+{
+ add_draw_el(varray, i0, flags);
+ add_draw_el(varray, i1, 0);
+ add_draw_el(varray, i2, 0);
+}
+
+static INLINE void varray_line( struct varray_frontend *varray,
+ unsigned i0,
+ unsigned i1 )
+{
+ add_draw_el(varray, i0, 0);
+ add_draw_el(varray, i1, 0);
+}
+
+
+static INLINE void varray_line_flags( struct varray_frontend *varray,
+ ushort flags,
+ unsigned i0,
+ unsigned i1 )
+{
+ add_draw_el(varray, i0, flags);
+ add_draw_el(varray, i1, 0);
+}
+
+
+static INLINE void varray_point( struct varray_frontend *varray,
+ unsigned i0 )
+{
+ add_draw_el(varray, i0, 0);
+}
+
+static INLINE void varray_quad( struct varray_frontend *varray,
+ unsigned i0,
+ unsigned i1,
+ unsigned i2,
+ unsigned i3 )
+{
+ varray_triangle( varray, i0, i1, i3 );
+ varray_triangle( varray, i1, i2, i3 );
+}
+
+static INLINE void varray_ef_quad( struct varray_frontend *varray,
+ unsigned i0,
+ unsigned i1,
+ unsigned i2,
+ unsigned i3 )
+{
+ const unsigned omitEdge1 = DRAW_PIPE_EDGE_FLAG_0 | DRAW_PIPE_EDGE_FLAG_2;
+ const unsigned omitEdge2 = DRAW_PIPE_EDGE_FLAG_0 | DRAW_PIPE_EDGE_FLAG_1;
+
+ varray_triangle_flags( varray,
+ DRAW_PIPE_RESET_STIPPLE | omitEdge1,
+ i0, i1, i3 );
+
+ varray_triangle_flags( varray,
+ omitEdge2,
+ i1, i2, i3 );
+}
+
+/* At least for now, we're back to using a template include file for
+ * this. The two paths aren't too different though - it may be
+ * possible to reunify them.
+ */
+#define TRIANGLE(vc,flags,i0,i1,i2) varray_triangle_flags(vc,flags,i0,i1,i2)
+#define QUAD(vc,i0,i1,i2,i3) varray_ef_quad(vc,i0,i1,i2,i3)
+#define LINE(vc,flags,i0,i1) varray_line_flags(vc,flags,i0,i1)
+#define POINT(vc,i0) varray_point(vc,i0)
+#define FUNC varray_run_extras
+#include "draw_pt_varray_tmp.h"
+
+#define TRIANGLE(vc,flags,i0,i1,i2) varray_triangle(vc,i0,i1,i2)
+#define QUAD(vc,i0,i1,i2,i3) varray_quad(vc,i0,i1,i2,i3)
+#define LINE(vc,flags,i0,i1) varray_line(vc,i0,i1)
+#define POINT(vc,i0) varray_point(vc,i0)
+#define FUNC varray_run
+#include "draw_pt_varray_tmp.h"
+
+
+
+static unsigned reduced_prim[PIPE_PRIM_POLYGON + 1] = {
+ PIPE_PRIM_POINTS,
+ PIPE_PRIM_LINES,
+ PIPE_PRIM_LINES,
+ PIPE_PRIM_LINES,
+ PIPE_PRIM_TRIANGLES,
+ PIPE_PRIM_TRIANGLES,
+ PIPE_PRIM_TRIANGLES,
+ PIPE_PRIM_TRIANGLES,
+ PIPE_PRIM_TRIANGLES,
+ PIPE_PRIM_TRIANGLES
+};
+
+
+
+static void varray_prepare(struct draw_pt_front_end *frontend,
+ unsigned prim,
+ struct draw_pt_middle_end *middle,
+ unsigned opt)
+{
+ struct varray_frontend *varray = (struct varray_frontend *)frontend;
+ const struct pipe_rasterizer_state *rasterizer = varray->draw->rasterizer;
+
+ if (opt & PT_PIPELINE)
+ {
+ varray->base.run = varray_run_extras;
+ }
+ else
+ {
+ varray->base.run = varray_run;
+ }
+
+ varray->input_prim = prim;
+ varray->output_prim = reduced_prim[prim];
+
+ varray->middle = middle;
+ middle->prepare(middle, varray->output_prim, opt);
+}
+
+
+
+
+static void varray_finish(struct draw_pt_front_end *frontend)
+{
+ struct varray_frontend *varray = (struct varray_frontend *)frontend;
+ varray->middle->finish(varray->middle);
+ varray->middle = NULL;
+}
+
+static void varray_destroy(struct draw_pt_front_end *frontend)
+{
+ FREE(frontend);
+}
+
+
+struct draw_pt_front_end *draw_pt_varray(struct draw_context *draw)
+{
+ struct varray_frontend *varray = CALLOC_STRUCT(varray_frontend);
+ if (varray == NULL)
+ return NULL;
+
+ varray->base.prepare = varray_prepare;
+ varray->base.run = NULL;
+ varray->base.finish = varray_finish;
+ varray->base.destroy = varray_destroy;
+ varray->draw = draw;
+
+ return &varray->base;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 03:57:09 +0000