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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 "nouveau/nouveau_winsys.h"
#include "nvfx_context.h"
#include "nvfx_screen.h"
#include "nvfx_state.h"
#include "nvfx_resource.h"
#include "nvfx_transfer.h"
struct nvfx_transfer {
struct pipe_transfer base;
struct pipe_surface *surface;
boolean direct;
};
static void
nvfx_compatible_transfer_tex(struct pipe_resource *pt, unsigned width, unsigned height,
unsigned bind,
struct pipe_resource *template)
{
memset(template, 0, sizeof(struct pipe_resource));
template->target = pt->target;
template->format = pt->format;
template->width0 = width;
template->height0 = height;
template->depth0 = 1;
template->last_level = 0;
template->nr_samples = pt->nr_samples;
template->bind = bind;
template->usage = PIPE_USAGE_DYNAMIC;
template->flags = NVFX_RESOURCE_FLAG_LINEAR;
}
static unsigned nvfx_transfer_bind_flags( unsigned transfer_usage )
{
unsigned bind = 0;
if (transfer_usage & PIPE_TRANSFER_WRITE)
bind |= PIPE_BIND_BLIT_SOURCE;
if (transfer_usage & PIPE_TRANSFER_READ)
bind |= PIPE_BIND_BLIT_DESTINATION;
return bind;
}
struct pipe_transfer *
nvfx_miptree_transfer_new(struct pipe_context *pipe,
struct pipe_resource *pt,
struct pipe_subresource sr,
unsigned usage,
const struct pipe_box *box)
{
struct pipe_screen *pscreen = pipe->screen;
struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
struct nvfx_transfer *tx;
struct pipe_resource tx_tex_template, *tx_tex;
static int no_transfer = -1;
unsigned bind = nvfx_transfer_bind_flags(usage);
if(no_transfer < 0)
no_transfer = debug_get_bool_option("NOUVEAU_NO_TRANSFER", FALSE);
tx = CALLOC_STRUCT(nvfx_transfer);
if (!tx)
return NULL;
/* Don't handle 3D transfers yet.
*/
assert(box->depth == 1);
pipe_resource_reference(&tx->base.resource, pt);
tx->base.sr = sr;
tx->base.usage = usage;
tx->base.box = *box;
tx->base.stride = mt->level[sr.level].pitch;
/* Direct access to texture */
if ((pt->usage == PIPE_USAGE_DYNAMIC ||
no_transfer) &&
pt->flags & NVFX_RESOURCE_FLAG_LINEAR)
{
tx->direct = true;
/* XXX: just call the internal nvfx function.
*/
tx->surface = pscreen->get_tex_surface(pscreen, pt,
sr.face, sr.level,
box->z,
bind);
return &tx->base;
}
tx->direct = false;
nvfx_compatible_transfer_tex(pt, box->width, box->height, bind, &tx_tex_template);
tx_tex = pscreen->resource_create(pscreen, &tx_tex_template);
if (!tx_tex)
{
FREE(tx);
return NULL;
}
tx->base.stride = ((struct nvfx_miptree*)tx_tex)->level[0].pitch;
tx->surface = pscreen->get_tex_surface(pscreen, tx_tex,
0, 0, 0,
bind);
pipe_resource_reference(&tx_tex, NULL);
if (!tx->surface)
{
pipe_surface_reference(&tx->surface, NULL);
FREE(tx);
return NULL;
}
if (usage & PIPE_TRANSFER_READ) {
struct nvfx_screen *nvscreen = nvfx_screen(pscreen);
struct pipe_surface *src;
src = pscreen->get_tex_surface(pscreen, pt,
sr.face, sr.level, box->z,
PIPE_BIND_BLIT_SOURCE);
/* TODO: Check if SIFM can deal with x,y,w,h when swizzling */
/* TODO: Check if SIFM can un-swizzle */
nvscreen->eng2d->copy(nvscreen->eng2d,
tx->surface, 0, 0,
src,
box->x, box->y,
box->width, box->height);
pipe_surface_reference(&src, NULL);
}
return &tx->base;
}
void
nvfx_miptree_transfer_del(struct pipe_context *pipe,
struct pipe_transfer *ptx)
{
struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx;
if (!tx->direct && (ptx->usage & PIPE_TRANSFER_WRITE)) {
struct pipe_screen *pscreen = pipe->screen;
struct nvfx_screen *nvscreen = nvfx_screen(pscreen);
struct pipe_surface *dst;
dst = pscreen->get_tex_surface(pscreen,
ptx->resource,
ptx->sr.face,
ptx->sr.level,
ptx->box.z,
PIPE_BIND_BLIT_DESTINATION);
/* TODO: Check if SIFM can deal with x,y,w,h when swizzling */
nvscreen->eng2d->copy(nvscreen->eng2d,
dst, ptx->box.x, ptx->box.y,
tx->surface, 0, 0,
ptx->box.width, ptx->box.height);
pipe_surface_reference(&dst, NULL);
}
pipe_surface_reference(&tx->surface, NULL);
pipe_resource_reference(&ptx->resource, NULL);
FREE(ptx);
}
void *
nvfx_miptree_transfer_map(struct pipe_context *pipe, struct pipe_transfer *ptx)
{
struct pipe_screen *pscreen = pipe->screen;
struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx;
struct nv04_surface *ns = (struct nv04_surface *)tx->surface;
struct nvfx_miptree *mt = (struct nvfx_miptree *)tx->surface->texture;
uint8_t *map = nouveau_screen_bo_map(pscreen, mt->base.bo,
nouveau_screen_transfer_flags(ptx->usage));
if(!tx->direct)
return map + ns->base.offset;
else
return (map + ns->base.offset +
ptx->box.y * ns->pitch +
ptx->box.x * util_format_get_blocksize(ptx->resource->format));
}
void
nvfx_miptree_transfer_unmap(struct pipe_context *pipe, struct pipe_transfer *ptx)
{
struct pipe_screen *pscreen = pipe->screen;
struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx;
struct nvfx_miptree *mt = (struct nvfx_miptree *)tx->surface->texture;
nouveau_screen_bo_unmap(pscreen, mt->base.bo);
}
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