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nv20: rewrite vertex layout

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NV20 seems to be very different to NV10. In vertex array, pos is first,
not last. There are maximum 16 attributes and only few are currently
known.

This makes trivial/tri work on NV20.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
This commit is contained in:
Pekka Paalanen 2009-01-26 21:15:48 +02:00
parent 94ff37f0dc
commit f25421a59b
1 changed files with 63 additions and 30 deletions
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93
src/gallium/drivers/nv20/nv20_state_emit.c
View file

@ -159,8 +159,8 @@ static void nv20_state_emit_framebuffer(struct nv20_context* nv20)
BEGIN_RING(kelvin, NV20TCL_RT_HORIZ, 3);
OUT_RING ((w << 16) | 0);
OUT_RING ((h << 16) | 0);
OUT_RING (rt_format);
OUT_RING ((h << 16) | 0); /*NV20TCL_RT_VERT */
OUT_RING (rt_format); /* NV20TCL_RT_FORMAT */
BEGIN_RING(kelvin, NV20TCL_VIEWPORT_CLIP_HORIZ(0), 2);
OUT_RING (((w - 1) << 16) | 0);
OUT_RING (((h - 1) << 16) | 0);
@ -170,24 +170,29 @@ static void nv20_vertex_layout(struct nv20_context *nv20)
{
struct nv20_fragment_program *fp = nv20->fragprog.current;
struct draw_context *dc = nv20->draw;
uint32_t src;
int src;
int i;
struct vertex_info *vinfo = &nv20->vertex_info;
const enum interp_mode colorInterp = INTERP_LINEAR;
boolean colors[2] = { FALSE };
boolean generics[4] = { FALSE };
boolean generics[12] = { FALSE };
boolean fog = FALSE;
memset(vinfo, 0, sizeof(*vinfo));
/*
* NV10 hardware vertex attribute order:
* fog, weight, normal, tex1, tex0, 2nd color, color, position
* Assumed NV20 hardware vertex attribute order:
* 0 position, 1 ?, 2 ?, 3 col0,
* 4 col1?, 5 ?, 6 ?, 7 ?,
* 8 ?, 9 tex0, 10 tex1, 11 tex2,
* 12 tex3, 13 ?, 14 ?, 15 ?
* unaccounted: wgh, nor, fog
* There are total 16 attrs.
* vinfo->hwfmt[0] has a used-bit corresponding to each of these.
* relation to TGSI_SEMANTIC_*:
* - POSITION: position (always used)
* - COLOR: 2nd color, color
* - GENERIC: weight, normal, tex1, tex0
* - COLOR: col1, col0
* - GENERIC: tex3, tex2, tex1, tex0, normal, weight
* - FOG: fog
*/
@ -202,7 +207,7 @@ static void nv20_vertex_layout(struct nv20_context *nv20)
colors[isi] = TRUE;
break;
case TGSI_SEMANTIC_GENERIC:
assert(isi < 4);
assert(isi < 12);
generics[isi] = TRUE;
break;
case TGSI_SEMANTIC_FOG:
@ -213,14 +218,53 @@ static void nv20_vertex_layout(struct nv20_context *nv20)
}
}
if (fog) {
int src = draw_find_vs_output(dc, TGSI_SEMANTIC_FOG, 0);
draw_emit_vertex_attr(vinfo, EMIT_1F, INTERP_PERSPECTIVE, src);
vinfo->hwfmt[0] |= (1 << 7);
/* always do position */ {
src = draw_find_vs_output(dc, TGSI_SEMANTIC_POSITION, 0);
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_LINEAR, src);
vinfo->hwfmt[0] |= (1 << 0);
}
for (i = 3; i >= 0; i--) {
int src;
/* two unnamed generics */
for (i = 4; i < 6; i++) {
if (!generics[i])
continue;
src = draw_find_vs_output(dc, TGSI_SEMANTIC_GENERIC, i);
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src);
vinfo->hwfmt[0] |= (1 << (i - 3));
}
if (colors[0]) {
src = draw_find_vs_output(dc, TGSI_SEMANTIC_COLOR, 0);
draw_emit_vertex_attr(vinfo, EMIT_4F, colorInterp, src);
vinfo->hwfmt[0] |= (1 << 3);
}
if (colors[1]) {
src = draw_find_vs_output(dc, TGSI_SEMANTIC_COLOR, 1);
draw_emit_vertex_attr(vinfo, EMIT_4F, colorInterp, src);
vinfo->hwfmt[0] |= (1 << 4);
}
/* four unnamed generics */
for (i = 6; i < 10; i++) {
if (!generics[i])
continue;
src = draw_find_vs_output(dc, TGSI_SEMANTIC_GENERIC, i);
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src);
vinfo->hwfmt[0] |= (1 << (i - 1));
}
/* tex0, tex1, tex2, tex3 */
for (i = 0; i < 4; i++) {
if (!generics[i])
continue;
src = draw_find_vs_output(dc, TGSI_SEMANTIC_GENERIC, i);
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src);
vinfo->hwfmt[0] |= (1 << (i + 9));
}
/* two unnamed generics */
for (i = 10; i < 12; i++) {
if (!generics[i])
continue;
src = draw_find_vs_output(dc, TGSI_SEMANTIC_GENERIC, i);
@ -228,23 +272,12 @@ static void nv20_vertex_layout(struct nv20_context *nv20)
vinfo->hwfmt[0] |= (1 << (i + 3));
}
if (colors[1]) {
int src = draw_find_vs_output(dc, TGSI_SEMANTIC_COLOR, 1);
draw_emit_vertex_attr(vinfo, EMIT_4F, colorInterp, src);
vinfo->hwfmt[0] |= (1 << 2);
if (fog) {
src = draw_find_vs_output(dc, TGSI_SEMANTIC_FOG, 0);
draw_emit_vertex_attr(vinfo, EMIT_1F, INTERP_PERSPECTIVE, src);
vinfo->hwfmt[0] |= (1 << 15);
}
if (colors[0]) {
int src = draw_find_vs_output(dc, TGSI_SEMANTIC_COLOR, 0);
draw_emit_vertex_attr(vinfo, EMIT_4F, colorInterp, src);
vinfo->hwfmt[0] |= (1 << 1);
}
/* always do position */
src = draw_find_vs_output(dc, TGSI_SEMANTIC_POSITION, 0);
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_LINEAR, src);
vinfo->hwfmt[0] |= (1 << 0);
draw_compute_vertex_size(vinfo);
}