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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/nvc0_context.h"
#include "nvc0/nvc0_resource.h"
#include "nvc0/nvc0_3d.xml.h"
struct push_context {
struct nouveau_pushbuf *push;
struct translate *translate;
void *dest;
const void *idxbuf;
uint32_t vertex_size;
uint32_t restart_index;
uint32_t start_instance;
uint32_t instance_id;
bool prim_restart;
bool need_vertex_id;
struct {
bool enabled;
bool value;
uint8_t width;
unsigned stride;
const uint8_t *data;
} edgeflag;
};
static void nvc0_push_upload_vertex_ids(struct push_context *,
struct nvc0_context *,
const struct pipe_draw_info *);
static void
nvc0_push_context_init(struct nvc0_context *nvc0, struct push_context *ctx)
{
ctx->push = nvc0->base.pushbuf;
ctx->translate = nvc0->vertex->translate;
ctx->vertex_size = nvc0->vertex->size;
ctx->instance_id = 0;
ctx->need_vertex_id =
nvc0->vertprog->vp.need_vertex_id && (nvc0->vertex->num_elements < 32);
ctx->edgeflag.value = true;
ctx->edgeflag.enabled = nvc0->vertprog->vp.edgeflag < PIPE_MAX_ATTRIBS;
/* silence warnings */
ctx->edgeflag.data = NULL;
ctx->edgeflag.stride = 0;
ctx->edgeflag.width = 0;
}
static inline void
nvc0_vertex_configure_translate(struct nvc0_context *nvc0, int32_t index_bias)
{
struct translate *translate = nvc0->vertex->translate;
unsigned i;
for (i = 0; i < nvc0->num_vtxbufs; ++i) {
const uint8_t *map;
const struct pipe_vertex_buffer *vb = &nvc0->vtxbuf[i];
if (likely(!vb->buffer))
map = (const uint8_t *)vb->user_buffer;
else
map = nouveau_resource_map_offset(&nvc0->base,
nv04_resource(vb->buffer), vb->buffer_offset, NOUVEAU_BO_RD);
if (index_bias && !unlikely(nvc0->vertex->instance_bufs & (1 << i)))
map += (intptr_t)index_bias * vb->stride;
translate->set_buffer(translate, i, map, vb->stride, ~0);
}
}
static inline void
nvc0_push_map_idxbuf(struct push_context *ctx, struct nvc0_context *nvc0)
{
if (nvc0->idxbuf.buffer) {
struct nv04_resource *buf = nv04_resource(nvc0->idxbuf.buffer);
ctx->idxbuf = nouveau_resource_map_offset(&nvc0->base,
buf, nvc0->idxbuf.offset, NOUVEAU_BO_RD);
} else {
ctx->idxbuf = nvc0->idxbuf.user_buffer;
}
}
static inline void
nvc0_push_map_edgeflag(struct push_context *ctx, struct nvc0_context *nvc0,
int32_t index_bias)
{
unsigned attr = nvc0->vertprog->vp.edgeflag;
struct pipe_vertex_element *ve = &nvc0->vertex->element[attr].pipe;
struct pipe_vertex_buffer *vb = &nvc0->vtxbuf[ve->vertex_buffer_index];
struct nv04_resource *buf = nv04_resource(vb->buffer);
ctx->edgeflag.stride = vb->stride;
ctx->edgeflag.width = util_format_get_blocksize(ve->src_format);
if (buf) {
unsigned offset = vb->buffer_offset + ve->src_offset;
ctx->edgeflag.data = nouveau_resource_map_offset(&nvc0->base,
buf, offset, NOUVEAU_BO_RD);
} else {
ctx->edgeflag.data = (const uint8_t *)vb->user_buffer + ve->src_offset;
}
if (index_bias)
ctx->edgeflag.data += (intptr_t)index_bias * vb->stride;
}
static inline unsigned
prim_restart_search_i08(const uint8_t *elts, unsigned push, uint8_t index)
{
unsigned i;
for (i = 0; i < push && elts[i] != index; ++i);
return i;
}
static inline unsigned
prim_restart_search_i16(const uint16_t *elts, unsigned push, uint16_t index)
{
unsigned i;
for (i = 0; i < push && elts[i] != index; ++i);
return i;
}
static inline unsigned
prim_restart_search_i32(const uint32_t *elts, unsigned push, uint32_t index)
{
unsigned i;
for (i = 0; i < push && elts[i] != index; ++i);
return i;
}
static inline bool
ef_value_8(const struct push_context *ctx, uint32_t index)
{
uint8_t *pf = (uint8_t *)&ctx->edgeflag.data[index * ctx->edgeflag.stride];
return !!*pf;
}
static inline bool
ef_value_32(const struct push_context *ctx, uint32_t index)
{
uint32_t *pf = (uint32_t *)&ctx->edgeflag.data[index * ctx->edgeflag.stride];
return !!*pf;
}
static inline bool
ef_toggle(struct push_context *ctx)
{
ctx->edgeflag.value = !ctx->edgeflag.value;
return ctx->edgeflag.value;
}
static inline unsigned
ef_toggle_search_i08(struct push_context *ctx, const uint8_t *elts, unsigned n)
{
unsigned i;
bool ef = ctx->edgeflag.value;
if (ctx->edgeflag.width == 1)
for (i = 0; i < n && ef_value_8(ctx, elts[i]) == ef; ++i);
else
for (i = 0; i < n && ef_value_32(ctx, elts[i]) == ef; ++i);
return i;
}
static inline unsigned
ef_toggle_search_i16(struct push_context *ctx, const uint16_t *elts, unsigned n)
{
unsigned i;
bool ef = ctx->edgeflag.value;
if (ctx->edgeflag.width == 1)
for (i = 0; i < n && ef_value_8(ctx, elts[i]) == ef; ++i);
else
for (i = 0; i < n && ef_value_32(ctx, elts[i]) == ef; ++i);
return i;
}
static inline unsigned
ef_toggle_search_i32(struct push_context *ctx, const uint32_t *elts, unsigned n)
{
unsigned i;
bool ef = ctx->edgeflag.value;
if (ctx->edgeflag.width == 1)
for (i = 0; i < n && ef_value_8(ctx, elts[i]) == ef; ++i);
else
for (i = 0; i < n && ef_value_32(ctx, elts[i]) == ef; ++i);
return i;
}
static inline unsigned
ef_toggle_search_seq(struct push_context *ctx, unsigned start, unsigned n)
{
unsigned i;
bool ef = ctx->edgeflag.value;
if (ctx->edgeflag.width == 1)
for (i = 0; i < n && ef_value_8(ctx, start++) == ef; ++i);
else
for (i = 0; i < n && ef_value_32(ctx, start++) == ef; ++i);
return i;
}
static inline void *
nvc0_push_setup_vertex_array(struct nvc0_context *nvc0, const unsigned count)
{
struct nouveau_pushbuf *push = nvc0->base.pushbuf;
struct nouveau_bo *bo;
uint64_t va;
const unsigned size = count * nvc0->vertex->size;
void *const dest = nouveau_scratch_get(&nvc0->base, size, &va, &bo);
BEGIN_NVC0(push, NVC0_3D(VERTEX_ARRAY_START_HIGH(0)), 2);
PUSH_DATAh(push, va);
PUSH_DATA (push, va);
BEGIN_NVC0(push, NVC0_3D(VERTEX_ARRAY_LIMIT_HIGH(0)), 2);
PUSH_DATAh(push, va + size - 1);
PUSH_DATA (push, va + size - 1);
BCTX_REFN_bo(nvc0->bufctx_3d, 3D_VTX_TMP, NOUVEAU_BO_GART | NOUVEAU_BO_RD,
bo);
nouveau_pushbuf_validate(push);
return dest;
}
static void
disp_vertices_i08(struct push_context *ctx, unsigned start, unsigned count)
{
struct nouveau_pushbuf *push = ctx->push;
struct translate *translate = ctx->translate;
const uint8_t *restrict elts = (uint8_t *)ctx->idxbuf + start;
unsigned pos = 0;
do {
unsigned nR = count;
if (unlikely(ctx->prim_restart))
nR = prim_restart_search_i08(elts, nR, ctx->restart_index);
translate->run_elts8(translate, elts, nR,
ctx->start_instance, ctx->instance_id, ctx->dest);
count -= nR;
ctx->dest += nR * ctx->vertex_size;
while (nR) {
unsigned nE = nR;
if (unlikely(ctx->edgeflag.enabled))
nE = ef_toggle_search_i08(ctx, elts, nR);
PUSH_SPACE(push, 4);
if (likely(nE >= 2)) {
BEGIN_NVC0(push, NVC0_3D(VERTEX_BUFFER_FIRST), 2);
PUSH_DATA (push, pos);
PUSH_DATA (push, nE);
} else
if (nE) {
if (pos <= 0xff) {
IMMED_NVC0(push, NVC0_3D(VB_ELEMENT_U32), pos);
} else {
BEGIN_NVC0(push, NVC0_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (push, pos);
}
}
if (unlikely(nE != nR))
IMMED_NVC0(push, NVC0_3D(EDGEFLAG), ef_toggle(ctx));
pos += nE;
elts += nE;
nR -= nE;
}
if (count) {
BEGIN_NVC0(push, NVC0_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (push, 0xffffffff);
++elts;
ctx->dest += ctx->vertex_size;
++pos;
--count;
}
} while (count);
}
static void
disp_vertices_i16(struct push_context *ctx, unsigned start, unsigned count)
{
struct nouveau_pushbuf *push = ctx->push;
struct translate *translate = ctx->translate;
const uint16_t *restrict elts = (uint16_t *)ctx->idxbuf + start;
unsigned pos = 0;
do {
unsigned nR = count;
if (unlikely(ctx->prim_restart))
nR = prim_restart_search_i16(elts, nR, ctx->restart_index);
translate->run_elts16(translate, elts, nR,
ctx->start_instance, ctx->instance_id, ctx->dest);
count -= nR;
ctx->dest += nR * ctx->vertex_size;
while (nR) {
unsigned nE = nR;
if (unlikely(ctx->edgeflag.enabled))
nE = ef_toggle_search_i16(ctx, elts, nR);
PUSH_SPACE(push, 4);
if (likely(nE >= 2)) {
BEGIN_NVC0(push, NVC0_3D(VERTEX_BUFFER_FIRST), 2);
PUSH_DATA (push, pos);
PUSH_DATA (push, nE);
} else
if (nE) {
if (pos <= 0xff) {
IMMED_NVC0(push, NVC0_3D(VB_ELEMENT_U32), pos);
} else {
BEGIN_NVC0(push, NVC0_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (push, pos);
}
}
if (unlikely(nE != nR))
IMMED_NVC0(push, NVC0_3D(EDGEFLAG), ef_toggle(ctx));
pos += nE;
elts += nE;
nR -= nE;
}
if (count) {
BEGIN_NVC0(push, NVC0_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (push, 0xffffffff);
++elts;
ctx->dest += ctx->vertex_size;
++pos;
--count;
}
} while (count);
}
static void
disp_vertices_i32(struct push_context *ctx, unsigned start, unsigned count)
{
struct nouveau_pushbuf *push = ctx->push;
struct translate *translate = ctx->translate;
const uint32_t *restrict elts = (uint32_t *)ctx->idxbuf + start;
unsigned pos = 0;
do {
unsigned nR = count;
if (unlikely(ctx->prim_restart))
nR = prim_restart_search_i32(elts, nR, ctx->restart_index);
translate->run_elts(translate, elts, nR,
ctx->start_instance, ctx->instance_id, ctx->dest);
count -= nR;
ctx->dest += nR * ctx->vertex_size;
while (nR) {
unsigned nE = nR;
if (unlikely(ctx->edgeflag.enabled))
nE = ef_toggle_search_i32(ctx, elts, nR);
PUSH_SPACE(push, 4);
if (likely(nE >= 2)) {
BEGIN_NVC0(push, NVC0_3D(VERTEX_BUFFER_FIRST), 2);
PUSH_DATA (push, pos);
PUSH_DATA (push, nE);
} else
if (nE) {
if (pos <= 0xff) {
IMMED_NVC0(push, NVC0_3D(VB_ELEMENT_U32), pos);
} else {
BEGIN_NVC0(push, NVC0_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (push, pos);
}
}
if (unlikely(nE != nR))
IMMED_NVC0(push, NVC0_3D(EDGEFLAG), ef_toggle(ctx));
pos += nE;
elts += nE;
nR -= nE;
}
if (count) {
BEGIN_NVC0(push, NVC0_3D(VB_ELEMENT_U32), 1);
PUSH_DATA (push, 0xffffffff);
++elts;
ctx->dest += ctx->vertex_size;
++pos;
--count;
}
} while (count);
}
static void
disp_vertices_seq(struct push_context *ctx, unsigned start, unsigned count)
{
struct nouveau_pushbuf *push = ctx->push;
struct translate *translate = ctx->translate;
unsigned pos = 0;
/* XXX: This will read the data corresponding to the primitive restart index,
* maybe we should avoid that ?
*/
translate->run(translate, start, count,
ctx->start_instance, ctx->instance_id, ctx->dest);
do {
unsigned nr = count;
if (unlikely(ctx->edgeflag.enabled))
nr = ef_toggle_search_seq(ctx, start + pos, nr);
PUSH_SPACE(push, 4);
if (likely(nr)) {
BEGIN_NVC0(push, NVC0_3D(VERTEX_BUFFER_FIRST), 2);
PUSH_DATA (push, pos);
PUSH_DATA (push, nr);
}
if (unlikely(nr != count))
IMMED_NVC0(push, NVC0_3D(EDGEFLAG), ef_toggle(ctx));
pos += nr;
count -= nr;
} while (count);
}
#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;
}
}
void
nvc0_push_vbo(struct nvc0_context *nvc0, 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;
unsigned prim;
nvc0_push_context_init(nvc0, &ctx);
nvc0_vertex_configure_translate(nvc0, info->index_bias);
if (nvc0->state.index_bias) {
/* this is already taken care of by translate */
IMMED_NVC0(ctx.push, NVC0_3D(VB_ELEMENT_BASE), 0);
nvc0->state.index_bias = 0;
}
if (unlikely(ctx.edgeflag.enabled))
nvc0_push_map_edgeflag(&ctx, nvc0, info->index_bias);
ctx.prim_restart = info->primitive_restart;
ctx.restart_index = info->restart_index;
if (info->primitive_restart) {
/* NOTE: I hope we won't ever need that last index (~0).
* If we do, we have to disable primitive restart here always and
* use END,BEGIN to restart. (XXX: would that affect PrimitiveID ?)
* We could also deactive PRIM_RESTART_WITH_DRAW_ARRAYS temporarily,
* and add manual restart to disp_vertices_seq.
*/
BEGIN_NVC0(ctx.push, NVC0_3D(PRIM_RESTART_ENABLE), 2);
PUSH_DATA (ctx.push, 1);
PUSH_DATA (ctx.push, info->indexed ? 0xffffffff : info->restart_index);
} else
if (nvc0->state.prim_restart) {
IMMED_NVC0(ctx.push, NVC0_3D(PRIM_RESTART_ENABLE), 0);
}
nvc0->state.prim_restart = info->primitive_restart;
if (info->indexed) {
nvc0_push_map_idxbuf(&ctx, nvc0);
index_size = nvc0->idxbuf.index_size;
} else {
if (unlikely(info->count_from_stream_output)) {
struct pipe_context *pipe = &nvc0->base.pipe;
struct nvc0_so_target *targ;
targ = nvc0_so_target(info->count_from_stream_output);
pipe->get_query_result(pipe, targ->pq, true, (void *)&vert_count);
vert_count /= targ->stride;
}
ctx.idxbuf = NULL; /* shut up warnings */
index_size = 0;
}
ctx.start_instance = info->start_instance;
prim = nvc0_prim_gl(info->mode);
do {
PUSH_SPACE(ctx.push, 9);
ctx.dest = nvc0_push_setup_vertex_array(nvc0, vert_count);
if (unlikely(!ctx.dest))
break;
if (unlikely(ctx.need_vertex_id))
nvc0_push_upload_vertex_ids(&ctx, nvc0, info);
if (nvc0->screen->eng3d->oclass < GM107_3D_CLASS)
IMMED_NVC0(ctx.push, NVC0_3D(VERTEX_ARRAY_FLUSH), 0);
BEGIN_NVC0(ctx.push, NVC0_3D(VERTEX_BEGIN_GL), 1);
PUSH_DATA (ctx.push, prim);
switch (index_size) {
case 1:
disp_vertices_i08(&ctx, info->start, vert_count);
break;
case 2:
disp_vertices_i16(&ctx, info->start, vert_count);
break;
case 4:
disp_vertices_i32(&ctx, info->start, vert_count);
break;
default:
assert(index_size == 0);
disp_vertices_seq(&ctx, info->start, vert_count);
break;
}
PUSH_SPACE(ctx.push, 1);
IMMED_NVC0(ctx.push, NVC0_3D(VERTEX_END_GL), 0);
if (--inst_count) {
prim |= NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT;
++ctx.instance_id;
}
nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_VTX_TMP);
nouveau_scratch_done(&nvc0->base);
} while (inst_count);
/* reset state and unmap buffers (no-op) */
if (unlikely(!ctx.edgeflag.value)) {
PUSH_SPACE(ctx.push, 1);
IMMED_NVC0(ctx.push, NVC0_3D(EDGEFLAG), 1);
}
if (unlikely(ctx.need_vertex_id)) {
PUSH_SPACE(ctx.push, 4);
IMMED_NVC0(ctx.push, NVC0_3D(VERTEX_ID_REPLACE), 0);
BEGIN_NVC0(ctx.push, NVC0_3D(VERTEX_ATTRIB_FORMAT(1)), 1);
PUSH_DATA (ctx.push,
NVC0_3D_VERTEX_ATTRIB_FORMAT_CONST |
NVC0_3D_VERTEX_ATTRIB_FORMAT_TYPE_FLOAT |
NVC0_3D_VERTEX_ATTRIB_FORMAT_SIZE_32);
IMMED_NVC0(ctx.push, NVC0_3D(VERTEX_ARRAY_FETCH(1)), 0);
}
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));
NOUVEAU_DRV_STAT(&nvc0->screen->base, draw_calls_fallback_count, 1);
}
static inline void
copy_indices_u8(uint32_t *dst, const uint8_t *elts, uint32_t bias, unsigned n)
{
unsigned i;
for (i = 0; i < n; ++i)
dst[i] = elts[i] + bias;
}
static inline void
copy_indices_u16(uint32_t *dst, const uint16_t *elts, uint32_t bias, unsigned n)
{
unsigned i;
for (i = 0; i < n; ++i)
dst[i] = elts[i] + bias;
}
static inline void
copy_indices_u32(uint32_t *dst, const uint32_t *elts, uint32_t bias, unsigned n)
{
unsigned i;
for (i = 0; i < n; ++i)
dst[i] = elts[i] + bias;
}
static void
nvc0_push_upload_vertex_ids(struct push_context *ctx,
struct nvc0_context *nvc0,
const struct pipe_draw_info *info)
{
struct nouveau_pushbuf *push = ctx->push;
struct nouveau_bo *bo;
uint64_t va;
uint32_t *data;
uint32_t format;
unsigned index_size = nvc0->idxbuf.index_size;
unsigned i;
unsigned a = nvc0->vertex->num_elements;
if (!index_size || info->index_bias)
index_size = 4;
data = (uint32_t *)nouveau_scratch_get(&nvc0->base,
info->count * index_size, &va, &bo);
BCTX_REFN_bo(nvc0->bufctx_3d, 3D_VTX_TMP, NOUVEAU_BO_GART | NOUVEAU_BO_RD,
bo);
nouveau_pushbuf_validate(push);
if (info->indexed) {
if (!info->index_bias) {
memcpy(data, ctx->idxbuf, info->count * index_size);
} else {
switch (nvc0->idxbuf.index_size) {
case 1:
copy_indices_u8(data, ctx->idxbuf, info->index_bias, info->count);
break;
case 2:
copy_indices_u16(data, ctx->idxbuf, info->index_bias, info->count);
break;
default:
copy_indices_u32(data, ctx->idxbuf, info->index_bias, info->count);
break;
}
}
} else {
for (i = 0; i < info->count; ++i)
data[i] = i + (info->start + info->index_bias);
}
format = (1 << NVC0_3D_VERTEX_ATTRIB_FORMAT_BUFFER__SHIFT) |
NVC0_3D_VERTEX_ATTRIB_FORMAT_TYPE_UINT;
switch (index_size) {
case 1:
format |= NVC0_3D_VERTEX_ATTRIB_FORMAT_SIZE_8;
break;
case 2:
format |= NVC0_3D_VERTEX_ATTRIB_FORMAT_SIZE_16;
break;
default:
format |= NVC0_3D_VERTEX_ATTRIB_FORMAT_SIZE_32;
break;
}
PUSH_SPACE(push, 12);
if (unlikely(nvc0->state.instance_elts & 2)) {
nvc0->state.instance_elts &= ~2;
IMMED_NVC0(push, NVC0_3D(VERTEX_ARRAY_PER_INSTANCE(1)), 0);
}
BEGIN_NVC0(push, NVC0_3D(VERTEX_ATTRIB_FORMAT(a)), 1);
PUSH_DATA (push, format);
BEGIN_NVC0(push, NVC0_3D(VERTEX_ARRAY_FETCH(1)), 3);
PUSH_DATA (push, NVC0_3D_VERTEX_ARRAY_FETCH_ENABLE | index_size);
PUSH_DATAh(push, va);
PUSH_DATA (push, va);
BEGIN_NVC0(push, NVC0_3D(VERTEX_ARRAY_LIMIT_HIGH(1)), 2);
PUSH_DATAh(push, va + info->count * index_size - 1);
PUSH_DATA (push, va + info->count * index_size - 1);
#define NVC0_3D_VERTEX_ID_REPLACE_SOURCE_ATTR_X(a) \
(((0x80 + (a) * 0x10) / 4) << NVC0_3D_VERTEX_ID_REPLACE_SOURCE__SHIFT)
BEGIN_NVC0(push, NVC0_3D(VERTEX_ID_REPLACE), 1);
PUSH_DATA (push, NVC0_3D_VERTEX_ID_REPLACE_SOURCE_ATTR_X(a) | 1);
}
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