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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 "nvc0_context.h"
#include "nvc0_resource.h"
#include "nvc0_3d.xml.h"
struct push_context {
struct nouveau_channel *chan;
void *idxbuf;
uint32_t vertex_words;
uint32_t packet_vertex_limit;
struct translate *translate;
boolean primitive_restart;
uint32_t prim;
uint32_t restart_index;
uint32_t instance_id;
struct {
int buffer;
float value;
uint8_t *data;
unsigned offset;
unsigned stride;
} edgeflag;
};
static void
init_push_context(struct nvc0_context *nvc0, struct push_context *ctx)
{
struct pipe_vertex_element *ve;
ctx->chan = nvc0->screen->base.channel;
ctx->translate = nvc0->vertex->translate;
ctx->edgeflag.value = 0.5f;
if (NVC0_USING_EDGEFLAG(nvc0)) {
ve = &nvc0->vertex->element[nvc0->vertprog->vp.edgeflag].pipe;
ctx->edgeflag.buffer = ve->vertex_buffer_index;
ctx->edgeflag.offset = ve->src_offset;
ctx->packet_vertex_limit = 1;
} else {
ctx->edgeflag.buffer = -1;
ctx->edgeflag.offset = 0;
ctx->edgeflag.stride = 0;
ctx->edgeflag.data = NULL;
ctx->packet_vertex_limit = nvc0->vertex->vtx_per_packet_max;
}
ctx->vertex_words = nvc0->vertex->vtx_size;
}
static INLINE void
set_edgeflag(struct push_context *ctx, unsigned vtx_id)
{
float f = *(float *)(ctx->edgeflag.data + vtx_id * ctx->edgeflag.stride);
if (ctx->edgeflag.value != f) {
ctx->edgeflag.value = f;
IMMED_RING(ctx->chan, RING_3D(EDGEFLAG_ENABLE), f ? 1 : 0);
}
}
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 *restrict 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);
if (unlikely(ctx->edgeflag.buffer >= 0) && nr)
set_edgeflag(ctx, elts[0]);
size = ctx->vertex_words * nr;
BEGIN_RING_NI(ctx->chan, RING_3D(VERTEX_DATA), size);
ctx->translate->run_elts8(ctx->translate, elts, nr, ctx->instance_id,
ctx->chan->cur);
ctx->chan->cur += size;
count -= nr;
elts += nr;
if (nr != push) {
count--;
elts++;
BEGIN_RING(ctx->chan, RING_3D(VERTEX_END_GL), 2);
OUT_RING (ctx->chan, 0);
OUT_RING (ctx->chan, NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_CONT |
(ctx->prim & ~NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT));
}
}
}
static void
emit_vertices_i16(struct push_context *ctx, unsigned start, unsigned count)
{
uint16_t *restrict 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);
if (unlikely(ctx->edgeflag.buffer >= 0) && nr)
set_edgeflag(ctx, elts[0]);
size = ctx->vertex_words * nr;
BEGIN_RING_NI(ctx->chan, RING_3D(VERTEX_DATA), size);
ctx->translate->run_elts16(ctx->translate, elts, nr, ctx->instance_id,
ctx->chan->cur);
ctx->chan->cur += size;
count -= nr;
elts += nr;
if (nr != push) {
count--;
elts++;
BEGIN_RING(ctx->chan, RING_3D(VERTEX_END_GL), 2);
OUT_RING (ctx->chan, 0);
OUT_RING (ctx->chan, NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_CONT |
(ctx->prim & ~NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT));
}
}
}
static void
emit_vertices_i32(struct push_context *ctx, unsigned start, unsigned count)
{
uint32_t *restrict 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);
if (unlikely(ctx->edgeflag.buffer >= 0) && nr)
set_edgeflag(ctx, elts[0]);
size = ctx->vertex_words * nr;
BEGIN_RING_NI(ctx->chan, RING_3D(VERTEX_DATA), size);
ctx->translate->run_elts(ctx->translate, elts, nr, ctx->instance_id,
ctx->chan->cur);
ctx->chan->cur += size;
count -= nr;
elts += nr;
if (nr != push) {
count--;
elts++;
BEGIN_RING(ctx->chan, RING_3D(VERTEX_END_GL), 2);
OUT_RING (ctx->chan, 0);
OUT_RING (ctx->chan, NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_CONT |
(ctx->prim & ~NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT));
}
}
}
static void
emit_vertices_seq(struct push_context *ctx, unsigned start, unsigned count)
{
while (count) {
unsigned push = MIN2(count, ctx->packet_vertex_limit);
unsigned size = ctx->vertex_words * push;
if (unlikely(ctx->edgeflag.buffer >= 0))
set_edgeflag(ctx, start);
BEGIN_RING_NI(ctx->chan, RING_3D(VERTEX_DATA), size);
ctx->translate->run(ctx->translate, start, push, ctx->instance_id,
ctx->chan->cur);
ctx->chan->cur += size;
count -= push;
start += push;
}
}
#define NVC0_PRIM_GL_CASE(n) \
case PIPE_PRIM_##n: return NVC0_3D_VERTEX_BEGIN_GL_PRIMITIVE_##n
static INLINE unsigned
nvc0_prim_gl(unsigned prim)
{
switch (prim) {
NVC0_PRIM_GL_CASE(POINTS);
NVC0_PRIM_GL_CASE(LINES);
NVC0_PRIM_GL_CASE(LINE_LOOP);
NVC0_PRIM_GL_CASE(LINE_STRIP);
NVC0_PRIM_GL_CASE(TRIANGLES);
NVC0_PRIM_GL_CASE(TRIANGLE_STRIP);
NVC0_PRIM_GL_CASE(TRIANGLE_FAN);
NVC0_PRIM_GL_CASE(QUADS);
NVC0_PRIM_GL_CASE(QUAD_STRIP);
NVC0_PRIM_GL_CASE(POLYGON);
NVC0_PRIM_GL_CASE(LINES_ADJACENCY);
NVC0_PRIM_GL_CASE(LINE_STRIP_ADJACENCY);
NVC0_PRIM_GL_CASE(TRIANGLES_ADJACENCY);
NVC0_PRIM_GL_CASE(TRIANGLE_STRIP_ADJACENCY);
/*
NVC0_PRIM_GL_CASE(PATCHES); */
default:
return NVC0_3D_VERTEX_BEGIN_GL_PRIMITIVE_POINTS;
break;
}
}
void
nvc0_push_vbo(struct nvc0_context *nvc0, const struct pipe_draw_info *info)
{
struct push_context ctx;
unsigned i, index_size;
unsigned inst = info->instance_count;
boolean apply_bias = info->indexed && info->index_bias;
init_push_context(nvc0, &ctx);
for (i = 0; i < nvc0->num_vtxbufs; ++i) {
uint8_t *data;
struct pipe_vertex_buffer *vb = &nvc0->vtxbuf[i];
struct nv04_resource *res = nv04_resource(vb->buffer);
data = nouveau_resource_map_offset(&nvc0->base, res,
vb->buffer_offset, NOUVEAU_BO_RD);
if (apply_bias && likely(!(nvc0->vertex->instance_bufs & (1 << i))))
data += info->index_bias * vb->stride;
ctx.translate->set_buffer(ctx.translate, i, data, vb->stride, ~0);
if (unlikely(i == ctx.edgeflag.buffer)) {
ctx.edgeflag.data = data + ctx.edgeflag.offset;
ctx.edgeflag.stride = vb->stride;
}
}
if (info->indexed) {
ctx.idxbuf =
nouveau_resource_map_offset(&nvc0->base,
nv04_resource(nvc0->idxbuf.buffer),
nvc0->idxbuf.offset, NOUVEAU_BO_RD);
if (!ctx.idxbuf)
return;
index_size = nvc0->idxbuf.index_size;
ctx.primitive_restart = info->primitive_restart;
ctx.restart_index = info->restart_index;
} else {
ctx.idxbuf = NULL;
index_size = 0;
ctx.primitive_restart = FALSE;
ctx.restart_index = 0;
}
ctx.instance_id = info->start_instance;
ctx.prim = nvc0_prim_gl(info->mode);
while (inst--) {
BEGIN_RING(ctx.chan, RING_3D(VERTEX_BEGIN_GL), 1);
OUT_RING (ctx.chan, ctx.prim);
switch (index_size) {
case 0:
emit_vertices_seq(&ctx, info->start, info->count);
break;
case 1:
emit_vertices_i08(&ctx, info->start, info->count);
break;
case 2:
emit_vertices_i16(&ctx, info->start, info->count);
break;
case 4:
emit_vertices_i32(&ctx, info->start, info->count);
break;
default:
assert(0);
break;
}
IMMED_RING(ctx.chan, RING_3D(VERTEX_END_GL), 0);
ctx.instance_id++;
ctx.prim |= NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT;
}
if (unlikely(ctx.edgeflag.value == 0.0f))
IMMED_RING(ctx.chan, RING_3D(EDGEFLAG_ENABLE), 1);
if (info->indexed)
nouveau_resource_unmap(nv04_resource(nvc0->idxbuf.buffer));
for (i = 0; i < nvc0->num_vtxbufs; ++i)
nouveau_resource_unmap(nv04_resource(nvc0->vtxbuf[i].buffer));
}
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