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#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "util/u_memory.h"
#include "util/u_math.h"
#include "util/u_staging.h"
#include "nvfx_context.h"
#include "nvfx_screen.h"
#include "nvfx_state.h"
#include "nvfx_resource.h"
#include "nvfx_transfer.h"
struct nvfx_staging_transfer
{
struct util_staging_transfer base;
unsigned offset;
unsigned map_count;
};
struct pipe_transfer *
nvfx_transfer_new(struct pipe_context *pipe,
struct pipe_resource *pt,
unsigned level,
unsigned usage,
const struct pipe_box *box)
{
if((usage & (PIPE_TRANSFER_UNSYNCHRONIZED | PIPE_TRANSFER_DONTBLOCK)) == PIPE_TRANSFER_DONTBLOCK)
{
struct nouveau_bo* bo = ((struct nvfx_resource*)pt)->bo;
if(bo && nouveau_bo_busy(bo, NOUVEAU_BO_WR))
return NULL;
}
if(pt->target == PIPE_BUFFER)
{
// it would be nice if we could avoid all this ridiculous overhead...
struct pipe_transfer* tx;
struct nvfx_buffer* buffer = nvfx_buffer(pt);
tx = CALLOC_STRUCT(pipe_transfer);
if (!tx)
return NULL;
pipe_resource_reference(&tx->resource, pt);
tx->level = level;
tx->usage = usage;
tx->box = *box;
tx->layer_stride = tx->stride = util_format_get_stride(pt->format, box->width);
tx->data = buffer->data + util_format_get_stride(pt->format, box->x);
return tx;
}
else
{
struct nvfx_staging_transfer* tx;
boolean direct = !nvfx_resource_on_gpu(pt) && pt->flags & NOUVEAU_RESOURCE_FLAG_LINEAR;
tx = CALLOC_STRUCT(nvfx_staging_transfer);
if(!tx)
return NULL;
util_staging_transfer_init(pipe, pt, level, usage, box, direct, &tx->base);
if(direct)
{
tx->base.base.stride = nvfx_subresource_pitch(pt, level);
tx->base.base.layer_stride = tx->base.base.stride * u_minify(pt->height0, level);
tx->offset = nvfx_subresource_offset(pt, box->z, level, box->z)
+ util_format_get_2d_size(pt->format, tx->base.base.stride, box->y)
+ util_format_get_stride(pt->format, box->x);
}
else
{
tx->base.base.stride = nvfx_subresource_pitch(tx->base.staging_resource, 0);
tx->base.base.layer_stride = tx->base.base.stride * tx->base.staging_resource->height0;
tx->offset = 0;
}
assert(tx->base.base.stride);
return &tx->base.base;
}
}
static void nvfx_buffer_dirty_interval(struct nvfx_buffer* buffer, unsigned begin, unsigned size, boolean unsynchronized)
{
struct nvfx_screen* screen = nvfx_screen(buffer->base.base.screen);
buffer->last_update_static = buffer->bytes_to_draw_until_static < 0;
if(buffer->dirty_begin == buffer->dirty_end)
{
buffer->dirty_begin = begin;
buffer->dirty_end = begin + size;
buffer->dirty_unsynchronized = unsynchronized;
}
else
{
buffer->dirty_begin = MIN2(buffer->dirty_begin, begin);
buffer->dirty_end = MAX2(buffer->dirty_end, begin + size);
buffer->dirty_unsynchronized &= unsynchronized;
}
if(unsynchronized)
{
// TODO: revisit this, it doesn't seem quite right
//printf("UNSYNC UPDATE %p %u %u\n", buffer, begin, size);
buffer->bytes_to_draw_until_static += size * screen->static_reuse_threshold;
}
else
buffer->bytes_to_draw_until_static = buffer->size * screen->static_reuse_threshold;
}
static void nvfx_transfer_flush_region( struct pipe_context *pipe,
struct pipe_transfer *ptx,
const struct pipe_box *box)
{
if(ptx->resource->target == PIPE_BUFFER && (ptx->usage & PIPE_TRANSFER_FLUSH_EXPLICIT))
{
struct nvfx_buffer* buffer = nvfx_buffer(ptx->resource);
nvfx_buffer_dirty_interval(buffer,
(uint8_t*)ptx->data - buffer->data + util_format_get_stride(buffer->base.base.format, box->x),
util_format_get_stride(buffer->base.base.format, box->width),
!!(ptx->usage & PIPE_TRANSFER_UNSYNCHRONIZED));
}
}
static void
nvfx_transfer_destroy(struct pipe_context *pipe, struct pipe_transfer *ptx)
{
if(ptx->resource->target == PIPE_BUFFER)
{
struct nvfx_buffer* buffer = nvfx_buffer(ptx->resource);
if((ptx->usage & (PIPE_TRANSFER_WRITE | PIPE_TRANSFER_FLUSH_EXPLICIT)) == PIPE_TRANSFER_WRITE)
nvfx_buffer_dirty_interval(buffer,
(uint8_t*)ptx->data - buffer->data,
ptx->stride,
!!(ptx->usage & PIPE_TRANSFER_UNSYNCHRONIZED));
pipe_resource_reference(&ptx->resource, 0);
FREE(ptx);
}
else
{
struct nouveau_channel* chan = nvfx_context(pipe)->screen->base.channel;
util_staging_transfer_destroy(pipe, ptx);
FIRE_RING(chan);
}
}
void *
nvfx_transfer_map(struct pipe_context *pipe, struct pipe_transfer *ptx)
{
if(ptx->resource->target == PIPE_BUFFER)
return ptx->data;
else
{
struct nvfx_staging_transfer *tx = (struct nvfx_staging_transfer *)ptx;
if(!ptx->data)
{
struct nvfx_miptree *mt = (struct nvfx_miptree *)tx->base.staging_resource;
uint8_t *map = nouveau_screen_bo_map(pipe->screen, mt->base.bo, nouveau_screen_transfer_flags(ptx->usage));
ptx->data = map + tx->offset;
}
++tx->map_count;
return ptx->data;
}
}
void
nvfx_transfer_unmap(struct pipe_context *pipe, struct pipe_transfer *ptx)
{
if(ptx->resource->target != PIPE_BUFFER)
{
struct nvfx_staging_transfer *tx = (struct nvfx_staging_transfer *)ptx;
struct nvfx_miptree *mt = (struct nvfx_miptree *)tx->base.staging_resource;
if(!--tx->map_count)
{
nouveau_screen_bo_unmap(pipe->screen, mt->base.bo);
ptx->data = 0;
}
}
}
static void nvfx_transfer_inline_write( struct pipe_context *pipe,
struct pipe_resource *pr,
unsigned level,
unsigned usage,
const struct pipe_box *box,
const void *data,
unsigned stride,
unsigned slice_stride)
{
if(pr->target != PIPE_BUFFER)
{
u_default_transfer_inline_write(pipe, pr, level, usage, box, data, stride, slice_stride);
}
else
{
struct nvfx_buffer* buffer = nvfx_buffer(pr);
unsigned begin = util_format_get_stride(pr->format, box->x);
unsigned size = util_format_get_stride(pr->format, box->width);
memcpy(buffer->data + begin, data, size);
nvfx_buffer_dirty_interval(buffer, begin, size,
!!(pr->flags & PIPE_TRANSFER_UNSYNCHRONIZED));
}
}
void
nvfx_init_transfer_functions(struct pipe_context *pipe)
{
pipe->get_transfer = nvfx_transfer_new;
pipe->transfer_map = nvfx_transfer_map;
pipe->transfer_flush_region = nvfx_transfer_flush_region;
pipe->transfer_unmap = nvfx_transfer_unmap;
pipe->transfer_destroy = nvfx_transfer_destroy;
pipe->transfer_inline_write = nvfx_transfer_inline_write;
}
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