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Diffstat (limited to 'src/gallium/aux/draw/draw_vf.c')
-rw-r--r--src/gallium/aux/draw/draw_vf.c428
1 files changed, 428 insertions, 0 deletions
diff --git a/src/gallium/aux/draw/draw_vf.c b/src/gallium/aux/draw/draw_vf.c
new file mode 100644
index 0000000000..dc3a5ecd21
--- /dev/null
+++ b/src/gallium/aux/draw/draw_vf.c
@@ -0,0 +1,428 @@
+/*
+ * Copyright 2003 Tungsten Graphics, inc.
+ * 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
+ * on 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 THEIR 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 <keithw@tungstengraphics.com>
+ */
+
+
+#include <stddef.h>
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_util.h"
+
+#include "draw_vf.h"
+
+
+#define DRAW_VF_DBG 0
+
+
+/* TODO: remove this */
+extern void
+_mesa_exec_free( void *addr );
+
+
+static boolean match_fastpath( struct draw_vertex_fetch *vf,
+ const struct draw_vf_fastpath *fp)
+{
+ unsigned j;
+
+ if (vf->attr_count != fp->attr_count)
+ return FALSE;
+
+ for (j = 0; j < vf->attr_count; j++)
+ if (vf->attr[j].format != fp->attr[j].format ||
+ vf->attr[j].inputsize != fp->attr[j].size ||
+ vf->attr[j].vertoffset != fp->attr[j].offset)
+ return FALSE;
+
+ if (fp->match_strides) {
+ if (vf->vertex_stride != fp->vertex_stride)
+ return FALSE;
+
+ for (j = 0; j < vf->attr_count; j++)
+ if (vf->attr[j].inputstride != fp->attr[j].stride)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static boolean search_fastpath_emit( struct draw_vertex_fetch *vf )
+{
+ struct draw_vf_fastpath *fp = vf->fastpath;
+
+ for ( ; fp ; fp = fp->next) {
+ if (match_fastpath(vf, fp)) {
+ vf->emit = fp->func;
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+void draw_vf_register_fastpath( struct draw_vertex_fetch *vf,
+ boolean match_strides )
+{
+ struct draw_vf_fastpath *fastpath = CALLOC_STRUCT(draw_vf_fastpath);
+ unsigned i;
+
+ fastpath->vertex_stride = vf->vertex_stride;
+ fastpath->attr_count = vf->attr_count;
+ fastpath->match_strides = match_strides;
+ fastpath->func = vf->emit;
+ fastpath->attr = (struct draw_vf_attr_type *)
+ MALLOC(vf->attr_count * sizeof(fastpath->attr[0]));
+
+ for (i = 0; i < vf->attr_count; i++) {
+ fastpath->attr[i].format = vf->attr[i].format;
+ fastpath->attr[i].stride = vf->attr[i].inputstride;
+ fastpath->attr[i].size = vf->attr[i].inputsize;
+ fastpath->attr[i].offset = vf->attr[i].vertoffset;
+ }
+
+ fastpath->next = vf->fastpath;
+ vf->fastpath = fastpath;
+}
+
+
+
+
+/***********************************************************************
+ * Build codegen functions or return generic ones:
+ */
+static void choose_emit_func( struct draw_vertex_fetch *vf,
+ unsigned count,
+ uint8_t *dest)
+{
+ vf->emit = NULL;
+
+ /* Does this match an existing (hardwired, codegen or known-bad)
+ * fastpath?
+ */
+ if (search_fastpath_emit(vf)) {
+ /* Use this result. If it is null, then it is already known
+ * that the current state will fail for codegen and there is no
+ * point trying again.
+ */
+ }
+ else if (vf->codegen_emit) {
+ vf->codegen_emit( vf );
+ }
+
+ if (!vf->emit) {
+ draw_vf_generate_hardwired_emit(vf);
+ }
+
+ /* Otherwise use the generic version:
+ */
+ if (!vf->emit)
+ vf->emit = draw_vf_generic_emit;
+
+ vf->emit( vf, count, dest );
+}
+
+
+
+
+
+/***********************************************************************
+ * Public entrypoints, mostly dispatch to the above:
+ */
+
+
+
+static unsigned
+draw_vf_set_vertex_attributes( struct draw_vertex_fetch *vf,
+ const struct draw_vf_attr_map *map,
+ unsigned nr,
+ unsigned vertex_stride )
+{
+ unsigned offset = 0;
+ unsigned i, j;
+
+ assert(nr < PIPE_ATTRIB_MAX);
+
+ for (j = 0, i = 0; i < nr; i++) {
+ const unsigned format = map[i].format;
+ if (format == DRAW_EMIT_PAD) {
+#if (DRAW_VF_DBG)
+ debug_printf("%d: pad %d, offset %d\n", i,
+ map[i].offset, offset);
+#endif
+
+ offset += map[i].offset;
+
+ }
+ else {
+ vf->attr[j].attrib = map[i].attrib;
+ vf->attr[j].format = format;
+ vf->attr[j].insert = draw_vf_format_info[format].insert;
+ vf->attr[j].vertattrsize = draw_vf_format_info[format].attrsize;
+ vf->attr[j].vertoffset = offset;
+ vf->attr[j].isconst = draw_vf_format_info[format].isconst;
+ if(vf->attr[j].isconst)
+ memcpy(vf->attr[j].data, &map[i].data, vf->attr[j].vertattrsize);
+
+#if (DRAW_VF_DBG)
+ debug_printf("%d: %s, offset %d\n", i,
+ draw_vf_format_info[format].name,
+ vf->attr[j].vertoffset);
+#endif
+
+ offset += draw_vf_format_info[format].attrsize;
+ j++;
+ }
+ }
+
+ vf->attr_count = j;
+ vf->vertex_stride = vertex_stride ? vertex_stride : offset;
+ vf->emit = choose_emit_func;
+
+ assert(vf->vertex_stride >= offset);
+ return vf->vertex_stride;
+}
+
+
+void draw_vf_set_vertex_info( struct draw_vertex_fetch *vf,
+ const struct vertex_info *vinfo,
+ float point_size )
+{
+ unsigned i, j, k;
+ struct draw_vf_attr *a = vf->attr;
+ struct draw_vf_attr_map attrs[PIPE_MAX_SHADER_INPUTS];
+ unsigned count = 0; /* for debug/sanity */
+ unsigned nr_attrs = 0;
+
+ for (i = 0; i < vinfo->num_attribs; i++) {
+ j = vinfo->src_index[i];
+ switch (vinfo->emit[i]) {
+ case EMIT_OMIT:
+ /* no-op */
+ break;
+ case EMIT_ALL: {
+ /* just copy the whole vertex as-is to the vbuf */
+ unsigned s = vinfo->size;
+ assert(i == 0);
+ assert(j == 0);
+ /* copy the vertex header */
+ /* XXX: we actually don't copy the header, just pad it */
+ attrs[nr_attrs].attrib = 0;
+ attrs[nr_attrs].format = DRAW_EMIT_PAD;
+ attrs[nr_attrs].offset = offsetof(struct vertex_header, data);
+ s -= offsetof(struct vertex_header, data)/4;
+ count += offsetof(struct vertex_header, data)/4;
+ nr_attrs++;
+ /* copy the vertex data */
+ for(k = 0; k < (s & ~0x3); k += 4) {
+ attrs[nr_attrs].attrib = k/4;
+ attrs[nr_attrs].format = DRAW_EMIT_4F;
+ attrs[nr_attrs].offset = 0;
+ nr_attrs++;
+ count += 4;
+ }
+ /* tail */
+ /* XXX: actually, this shouldn't be needed */
+ attrs[nr_attrs].attrib = k/4;
+ attrs[nr_attrs].offset = 0;
+ switch(s & 0x3) {
+ case 0:
+ break;
+ case 1:
+ attrs[nr_attrs].format = DRAW_EMIT_1F;
+ nr_attrs++;
+ count += 1;
+ break;
+ case 2:
+ attrs[nr_attrs].format = DRAW_EMIT_2F;
+ nr_attrs++;
+ count += 2;
+ break;
+ case 3:
+ attrs[nr_attrs].format = DRAW_EMIT_3F;
+ nr_attrs++;
+ count += 3;
+ break;
+ }
+ break;
+ }
+ case EMIT_1F:
+ attrs[nr_attrs].attrib = j;
+ attrs[nr_attrs].format = DRAW_EMIT_1F;
+ attrs[nr_attrs].offset = 0;
+ nr_attrs++;
+ count++;
+ break;
+ case EMIT_1F_PSIZE:
+ attrs[nr_attrs].attrib = j;
+ attrs[nr_attrs].format = DRAW_EMIT_1F_CONST;
+ attrs[nr_attrs].offset = 0;
+ attrs[nr_attrs].data.f[0] = point_size;
+ nr_attrs++;
+ count++;
+ break;
+ case EMIT_2F:
+ attrs[nr_attrs].attrib = j;
+ attrs[nr_attrs].format = DRAW_EMIT_2F;
+ attrs[nr_attrs].offset = 0;
+ nr_attrs++;
+ count += 2;
+ break;
+ case EMIT_3F:
+ attrs[nr_attrs].attrib = j;
+ attrs[nr_attrs].format = DRAW_EMIT_3F;
+ attrs[nr_attrs].offset = 0;
+ nr_attrs++;
+ count += 3;
+ break;
+ case EMIT_4F:
+ attrs[nr_attrs].attrib = j;
+ attrs[nr_attrs].format = DRAW_EMIT_4F;
+ attrs[nr_attrs].offset = 0;
+ nr_attrs++;
+ count += 4;
+ break;
+ case EMIT_4UB:
+ attrs[nr_attrs].attrib = j;
+ attrs[nr_attrs].format = DRAW_EMIT_4UB_4F_BGRA;
+ attrs[nr_attrs].offset = 0;
+ nr_attrs++;
+ count += 1;
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ assert(count == vinfo->size);
+
+ draw_vf_set_vertex_attributes(vf,
+ attrs,
+ nr_attrs,
+ vinfo->size * sizeof(float) );
+
+ for (j = 0; j < vf->attr_count; j++) {
+ a[j].inputsize = 4;
+ a[j].do_insert = a[j].insert[4 - 1];
+ if(a[j].isconst) {
+ a[j].inputptr = a[j].data;
+ a[j].inputstride = 0;
+ }
+ }
+}
+
+
+#if 0
+/* Set attribute pointers, adjusted for start position:
+ */
+void draw_vf_set_sources( struct draw_vertex_fetch *vf,
+ GLvector4f * const sources[],
+ unsigned start )
+{
+ struct draw_vf_attr *a = vf->attr;
+ unsigned j;
+
+ for (j = 0; j < vf->attr_count; j++) {
+ const GLvector4f *vptr = sources[a[j].attrib];
+
+ if ((a[j].inputstride != vptr->stride) ||
+ (a[j].inputsize != vptr->size))
+ vf->emit = choose_emit_func;
+
+ a[j].inputstride = vptr->stride;
+ a[j].inputsize = vptr->size;
+ a[j].do_insert = a[j].insert[vptr->size - 1];
+ a[j].inputptr = ((uint8_t *)vptr->data) + start * vptr->stride;
+ }
+}
+#endif
+
+
+/**
+ * Emit a vertex to dest.
+ */
+void draw_vf_emit_vertex( struct draw_vertex_fetch *vf,
+ struct vertex_header *vertex,
+ void *dest )
+{
+ struct draw_vf_attr *a = vf->attr;
+ unsigned j;
+
+ for (j = 0; j < vf->attr_count; j++) {
+ if (!a[j].isconst) {
+ a[j].inputptr = (uint8_t *)&vertex->data[a[j].attrib][0];
+ a[j].inputstride = 0; /* XXX: one-vertex-max ATM */
+ }
+ }
+
+ vf->emit( vf, 1, (uint8_t*) dest );
+}
+
+
+
+struct draw_vertex_fetch *draw_vf_create( void )
+{
+ struct draw_vertex_fetch *vf = CALLOC_STRUCT(draw_vertex_fetch);
+ unsigned i;
+
+ for (i = 0; i < PIPE_ATTRIB_MAX; i++)
+ vf->attr[i].vf = vf;
+
+ vf->identity[0] = 0.0;
+ vf->identity[1] = 0.0;
+ vf->identity[2] = 0.0;
+ vf->identity[3] = 1.0;
+
+ vf->codegen_emit = NULL;
+
+#ifdef USE_SSE_ASM
+ if (!GETENV("GALLIUM_NO_CODEGEN"))
+ vf->codegen_emit = draw_vf_generate_sse_emit;
+#endif
+
+ return vf;
+}
+
+
+void draw_vf_destroy( struct draw_vertex_fetch *vf )
+{
+ struct draw_vf_fastpath *fp, *tmp;
+
+ for (fp = vf->fastpath ; fp ; fp = tmp) {
+ tmp = fp->next;
+ FREE(fp->attr);
+
+ /* KW: At the moment, fp->func is constrained to be allocated by
+ * _mesa_exec_alloc(), as the hardwired fastpaths in
+ * t_vertex_generic.c are handled specially. It would be nice
+ * to unify them, but this probably won't change until this
+ * module gets another overhaul.
+ */
+ //_mesa_exec_free((void *) fp->func);
+ FREE(fp);
+ }
+
+ vf->fastpath = NULL;
+ FREE(vf);
+}
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