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#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "translate/translate.h"
#include "nv50/nv50_context.h"
#include "nv50/nv50_resource.h"
#include "nv50/nv50_3d.xml.h"
struct push_context {
struct nouveau_pushbuf *push;
const void *idxbuf;
float edgeflag;
int edgeflag_attr;
uint32_t vertex_words;
uint32_t packet_vertex_limit;
struct translate *translate;
bool primitive_restart;
bool need_vertex_id;
int32_t index_bias;
uint32_t prim;
uint32_t restart_index;
uint32_t instance_id;
};
static inline unsigned
prim_restart_search_i08(uint8_t *elts, unsigned push, uint8_t index)
{
unsigned i;
for (i = 0; i < push; ++i)
if (elts[i] == index)
break;
return i;
}
static inline unsigned
prim_restart_search_i16(uint16_t *elts, unsigned push, uint16_t index)
{
unsigned i;
for (i = 0; i < push; ++i)
if (elts[i] == index)
break;
return i;
}
static inline unsigned
prim_restart_search_i32(uint32_t *elts, unsigned push, uint32_t index)
{
unsigned i;
for (i = 0; i < push; ++i)
if (elts[i] == index)
break;
return i;
}
static void
emit_vertices_i08(struct push_context *ctx, unsigned start, unsigned count)
{
uint8_t *elts = (uint8_t *)ctx->idxbuf + start;
while (count) {
unsigned push = MIN2(count, ctx->packet_vertex_limit);
unsigned size, nr;
nr = push;
if (ctx->primitive_restart)
nr = prim_restart_search_i08(elts, push, ctx->restart_index);
size = ctx->vertex_words * nr;
if (unlikely(ctx->need_vertex_id)) {
BEGIN_NV04(ctx->push, NV84_3D(VERTEX_ID_BASE), 1);
PUSH_DATA (ctx->push, *elts + ctx->index_bias);
}
BEGIN_NI04(ctx->push, NV50_3D(VERTEX_DATA), size);
ctx->translate->run_elts8(ctx->translate, elts, nr, 0, ctx->instance_id,
ctx->push->cur);
ctx->push->cur += size;
count -= nr;
elts += nr;
if (nr != push) {
count--;
elts++;
BEGIN_NV04(ctx->push, NV50_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (ctx->push, ctx->restart_index);
}
}
}
static void
emit_vertices_i16(struct push_context *ctx, unsigned start, unsigned count)
{
uint16_t *elts = (uint16_t *)ctx->idxbuf + start;
while (count) {
unsigned push = MIN2(count, ctx->packet_vertex_limit);
unsigned size, nr;
nr = push;
if (ctx->primitive_restart)
nr = prim_restart_search_i16(elts, push, ctx->restart_index);
size = ctx->vertex_words * nr;
if (unlikely(ctx->need_vertex_id)) {
BEGIN_NV04(ctx->push, NV84_3D(VERTEX_ID_BASE), 1);
PUSH_DATA (ctx->push, *elts + ctx->index_bias);
}
BEGIN_NI04(ctx->push, NV50_3D(VERTEX_DATA), size);
ctx->translate->run_elts16(ctx->translate, elts, nr, 0, ctx->instance_id,
ctx->push->cur);
ctx->push->cur += size;
count -= nr;
elts += nr;
if (nr != push) {
count--;
elts++;
BEGIN_NV04(ctx->push, NV50_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (ctx->push, ctx->restart_index);
}
}
}
static void
emit_vertices_i32(struct push_context *ctx, unsigned start, unsigned count)
{
uint32_t *elts = (uint32_t *)ctx->idxbuf + start;
while (count) {
unsigned push = MIN2(count, ctx->packet_vertex_limit);
unsigned size, nr;
nr = push;
if (ctx->primitive_restart)
nr = prim_restart_search_i32(elts, push, ctx->restart_index);
size = ctx->vertex_words * nr;
if (unlikely(ctx->need_vertex_id)) {
BEGIN_NV04(ctx->push, NV84_3D(VERTEX_ID_BASE), 1);
PUSH_DATA (ctx->push, *elts + ctx->index_bias);
}
BEGIN_NI04(ctx->push, NV50_3D(VERTEX_DATA), size);
ctx->translate->run_elts(ctx->translate, elts, nr, 0, ctx->instance_id,
ctx->push->cur);
ctx->push->cur += size;
count -= nr;
elts += nr;
if (nr != push) {
count--;
elts++;
BEGIN_NV04(ctx->push, NV50_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (ctx->push, ctx->restart_index);
}
}
}
static void
emit_vertices_seq(struct push_context *ctx, unsigned start, unsigned count)
{
uint32_t elts = 0;
while (count) {
unsigned push = MIN2(count, ctx->packet_vertex_limit);
unsigned size = ctx->vertex_words * push;
if (unlikely(ctx->need_vertex_id)) {
/* For non-indexed draws, gl_VertexID goes up after each vertex. */
BEGIN_NV04(ctx->push, NV84_3D(VERTEX_ID_BASE), 1);
PUSH_DATA (ctx->push, elts++);
}
BEGIN_NI04(ctx->push, NV50_3D(VERTEX_DATA), size);
ctx->translate->run(ctx->translate, start, push, 0, ctx->instance_id,
ctx->push->cur);
ctx->push->cur += size;
count -= push;
start += push;
}
}
#define NV50_PRIM_GL_CASE(n) \
case PIPE_PRIM_##n: return NV50_3D_VERTEX_BEGIN_GL_PRIMITIVE_##n
static inline unsigned
nv50_prim_gl(unsigned prim)
{
switch (prim) {
NV50_PRIM_GL_CASE(POINTS);
NV50_PRIM_GL_CASE(LINES);
NV50_PRIM_GL_CASE(LINE_LOOP);
NV50_PRIM_GL_CASE(LINE_STRIP);
NV50_PRIM_GL_CASE(TRIANGLES);
NV50_PRIM_GL_CASE(TRIANGLE_STRIP);
NV50_PRIM_GL_CASE(TRIANGLE_FAN);
NV50_PRIM_GL_CASE(QUADS);
NV50_PRIM_GL_CASE(QUAD_STRIP);
NV50_PRIM_GL_CASE(POLYGON);
NV50_PRIM_GL_CASE(LINES_ADJACENCY);
NV50_PRIM_GL_CASE(LINE_STRIP_ADJACENCY);
NV50_PRIM_GL_CASE(TRIANGLES_ADJACENCY);
NV50_PRIM_GL_CASE(TRIANGLE_STRIP_ADJACENCY);
/*
NV50_PRIM_GL_CASE(PATCHES); */
default:
return NV50_3D_VERTEX_BEGIN_GL_PRIMITIVE_POINTS;
break;
}
}
void
nv50_push_vbo(struct nv50_context *nv50, const struct pipe_draw_info *info)
{
struct push_context ctx;
unsigned i, index_size;
unsigned inst_count = info->instance_count;
unsigned vert_count = info->count;
bool apply_bias = info->indexed && info->index_bias;
ctx.push = nv50->base.pushbuf;
ctx.translate = nv50->vertex->translate;
ctx.need_vertex_id = nv50->screen->base.class_3d >= NV84_3D_CLASS &&
nv50->vertprog->vp.need_vertex_id && (nv50->vertex->num_elements < 32);
ctx.index_bias = info->index_bias;
/* For indexed draws, gl_VertexID must be emitted for every vertex. */
ctx.packet_vertex_limit =
ctx.need_vertex_id ? 1 : nv50->vertex->packet_vertex_limit;
ctx.vertex_words = nv50->vertex->vertex_size;
assert(nv50->num_vtxbufs <= PIPE_MAX_ATTRIBS);
for (i = 0; i < nv50->num_vtxbufs; ++i) {
const struct pipe_vertex_buffer *vb = &nv50->vtxbuf[i];
const uint8_t *data;
if (unlikely(vb->buffer))
data = nouveau_resource_map_offset(&nv50->base,
nv04_resource(vb->buffer), vb->buffer_offset, NOUVEAU_BO_RD);
else
data = vb->user_buffer;
if (apply_bias && likely(!(nv50->vertex->instance_bufs & (1 << i))))
data += (ptrdiff_t)info->index_bias * vb->stride;
ctx.translate->set_buffer(ctx.translate, i, data, vb->stride, ~0);
}
if (info->indexed) {
if (nv50->idxbuf.buffer) {
ctx.idxbuf = nouveau_resource_map_offset(&nv50->base,
nv04_resource(nv50->idxbuf.buffer), nv50->idxbuf.offset,
NOUVEAU_BO_RD);
} else {
ctx.idxbuf = nv50->idxbuf.user_buffer;
}
if (!ctx.idxbuf)
return;
index_size = nv50->idxbuf.index_size;
ctx.primitive_restart = info->primitive_restart;
ctx.restart_index = info->restart_index;
} else {
if (unlikely(info->count_from_stream_output)) {
struct pipe_context *pipe = &nv50->base.pipe;
struct nv50_so_target *targ;
targ = nv50_so_target(info->count_from_stream_output);
if (!targ->pq) {
NOUVEAU_ERR("draw_stream_output not supported on pre-NVA0 cards\n");
return;
}
pipe->get_query_result(pipe, targ->pq, true, (void *)&vert_count);
vert_count /= targ->stride;
}
ctx.idxbuf = NULL;
index_size = 0;
ctx.primitive_restart = false;
ctx.restart_index = 0;
}
ctx.instance_id = info->start_instance;
ctx.prim = nv50_prim_gl(info->mode);
if (info->primitive_restart) {
BEGIN_NV04(ctx.push, NV50_3D(PRIM_RESTART_ENABLE), 2);
PUSH_DATA (ctx.push, 1);
PUSH_DATA (ctx.push, info->restart_index);
} else
if (nv50->state.prim_restart) {
BEGIN_NV04(ctx.push, NV50_3D(PRIM_RESTART_ENABLE), 1);
PUSH_DATA (ctx.push, 0);
}
nv50->state.prim_restart = info->primitive_restart;
while (inst_count--) {
BEGIN_NV04(ctx.push, NV50_3D(VERTEX_BEGIN_GL), 1);
PUSH_DATA (ctx.push, ctx.prim);
switch (index_size) {
case 0:
emit_vertices_seq(&ctx, info->start, vert_count);
break;
case 1:
emit_vertices_i08(&ctx, info->start, vert_count);
break;
case 2:
emit_vertices_i16(&ctx, info->start, vert_count);
break;
case 4:
emit_vertices_i32(&ctx, info->start, vert_count);
break;
default:
assert(0);
break;
}
BEGIN_NV04(ctx.push, NV50_3D(VERTEX_END_GL), 1);
PUSH_DATA (ctx.push, 0);
ctx.instance_id++;
ctx.prim |= NV50_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT;
}
if (unlikely(ctx.need_vertex_id)) {
/* Reset gl_VertexID to prevent future indexed draws to be confused. */
BEGIN_NV04(ctx.push, NV84_3D(VERTEX_ID_BASE), 1);
PUSH_DATA (ctx.push, nv50->state.index_bias);
}
}
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