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#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "util/u_math.h"
#include "nv04_context.h"
#include "nv04_screen.h"
static void
nv04_miptree_layout(struct nv04_miptree *nv04mt)
{
struct pipe_texture *pt = &nv04mt->base;
uint offset = 0;
int nr_faces, l;
nr_faces = 1;
for (l = 0; l <= pt->last_level; l++) {
nv04mt->level[l].pitch = pt->width0;
nv04mt->level[l].pitch = (nv04mt->level[l].pitch + 63) & ~63;
}
for (l = 0; l <= pt->last_level; l++) {
nv04mt->level[l].image_offset =
CALLOC(nr_faces, sizeof(unsigned));
/* XXX guess was obviously missing */
nv04mt->level[l].image_offset[0] = offset;
offset += nv04mt->level[l].pitch * u_minify(pt->height0, l);
}
nv04mt->total_size = offset;
}
static struct pipe_texture *
nv04_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt)
{
struct nv04_miptree *mt;
mt = MALLOC(sizeof(struct nv04_miptree));
if (!mt)
return NULL;
mt->base = *pt;
pipe_reference_init(&mt->base.reference, 1);
mt->base.screen = pscreen;
//mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
nv04_miptree_layout(mt);
mt->buffer = pscreen->buffer_create(pscreen, 256, PIPE_BUFFER_USAGE_PIXEL |
NOUVEAU_BUFFER_USAGE_TEXTURE,
mt->total_size);
if (!mt->buffer) {
printf("failed %d byte alloc\n",mt->total_size);
FREE(mt);
return NULL;
}
mt->bo = nouveau_bo(mt->buffer);
return &mt->base;
}
static struct pipe_texture *
nv04_miptree_blanket(struct pipe_screen *pscreen, const struct pipe_texture *pt,
const unsigned *stride, struct pipe_buffer *pb)
{
struct nv04_miptree *mt;
/* Only supports 2D, non-mipmapped textures for the moment */
if (pt->target != PIPE_TEXTURE_2D || pt->last_level != 0 ||
pt->depth0 != 1)
return NULL;
mt = CALLOC_STRUCT(nv04_miptree);
if (!mt)
return NULL;
mt->base = *pt;
pipe_reference_init(&mt->base.reference, 1);
mt->base.screen = pscreen;
mt->level[0].pitch = stride[0];
mt->level[0].image_offset = CALLOC(1, sizeof(unsigned));
pipe_buffer_reference(&mt->buffer, pb);
mt->bo = nouveau_bo(mt->buffer);
return &mt->base;
}
static void
nv04_miptree_destroy(struct pipe_texture *pt)
{
struct nv04_miptree *mt = (struct nv04_miptree *)pt;
int l;
pipe_buffer_reference(&mt->buffer, NULL);
for (l = 0; l <= pt->last_level; l++) {
if (mt->level[l].image_offset)
FREE(mt->level[l].image_offset);
}
FREE(mt);
}
static struct pipe_surface *
nv04_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags)
{
struct nv04_miptree *nv04mt = (struct nv04_miptree *)pt;
struct nv04_surface *ns;
ns = CALLOC_STRUCT(nv04_surface);
if (!ns)
return NULL;
pipe_texture_reference(&ns->base.texture, pt);
ns->base.format = pt->format;
ns->base.width = u_minify(pt->width0, level);
ns->base.height = u_minify(pt->height0, level);
ns->base.usage = flags;
pipe_reference_init(&ns->base.reference, 1);
ns->base.face = face;
ns->base.level = level;
ns->base.zslice = zslice;
ns->pitch = nv04mt->level[level].pitch;
ns->base.offset = nv04mt->level[level].image_offset[0];
return &ns->base;
}
static void
nv04_miptree_surface_del(struct pipe_surface *ps)
{
pipe_texture_reference(&ps->texture, NULL);
FREE(ps);
}
void
nv04_screen_init_miptree_functions(struct pipe_screen *pscreen)
{
pscreen->texture_create = nv04_miptree_create;
pscreen->texture_blanket = nv04_miptree_blanket;
pscreen->texture_destroy = nv04_miptree_destroy;
pscreen->get_tex_surface = nv04_miptree_surface_new;
pscreen->tex_surface_destroy = nv04_miptree_surface_del;
}
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