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/*
* Copyright 2008 Ben Skeggs
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "nv50_context.h"
static struct pipe_texture *
nv50_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *tmp)
{
struct nv50_miptree *mt = CALLOC_STRUCT(nv50_miptree);
struct pipe_texture *pt = &mt->base;
unsigned usage, width = tmp->width[0], height = tmp->height[0];
unsigned depth = tmp->depth[0];
int i, l;
mt->base = *tmp;
pipe_reference_init(&mt->base.reference, 1);
mt->base.screen = pscreen;
usage = PIPE_BUFFER_USAGE_PIXEL;
switch (pt->format) {
case PIPE_FORMAT_Z24S8_UNORM:
case PIPE_FORMAT_Z16_UNORM:
usage |= NOUVEAU_BUFFER_USAGE_ZETA;
break;
default:
break;
}
switch (pt->target) {
case PIPE_TEXTURE_3D:
mt->image_nr = pt->depth[0];
break;
case PIPE_TEXTURE_CUBE:
mt->image_nr = 6;
break;
default:
mt->image_nr = 1;
break;
}
for (l = 0; l <= pt->last_level; l++) {
struct nv50_miptree_level *lvl = &mt->level[l];
pt->width[l] = width;
pt->height[l] = height;
pt->depth[l] = depth;
pt->nblocksx[l] = pf_get_nblocksx(&pt->block, width);
pt->nblocksy[l] = pf_get_nblocksy(&pt->block, height);
lvl->image_offset = CALLOC(mt->image_nr, sizeof(int));
lvl->pitch = align(pt->width[l] * pt->block.size, 64);
width = MAX2(1, width >> 1);
height = MAX2(1, height >> 1);
depth = MAX2(1, depth >> 1);
}
for (i = 0; i < mt->image_nr; i++) {
for (l = 0; l <= pt->last_level; l++) {
struct nv50_miptree_level *lvl = &mt->level[l];
int size;
size = align(pt->width[l], 8) * pt->block.size;
size = align(size, 64);
size *= align(pt->height[l], 8) * pt->block.size;
lvl->image_offset[i] = mt->total_size;
mt->total_size += size;
}
}
mt->buffer = pscreen->buffer_create(pscreen, 256, usage, mt->total_size);
if (!mt->buffer) {
FREE(mt);
return NULL;
}
return &mt->base;
}
static struct pipe_texture *
nv50_miptree_blanket(struct pipe_screen *pscreen, const struct pipe_texture *pt,
const unsigned *stride, struct pipe_buffer *pb)
{
struct nv50_miptree *mt;
/* Only supports 2D, non-mipmapped textures for the moment */
if (pt->target != PIPE_TEXTURE_2D || pt->last_level != 0 ||
pt->depth[0] != 1)
return NULL;
mt = CALLOC_STRUCT(nv50_miptree);
if (!mt)
return NULL;
mt->base = *pt;
pipe_reference_init(&mt->base.reference, 1);
mt->base.screen = pscreen;
mt->image_nr = 1;
mt->level[0].pitch = *stride;
mt->level[0].image_offset = CALLOC(1, sizeof(unsigned));
pipe_buffer_reference(&mt->buffer, pb);
return &mt->base;
}
static void
nv50_miptree_destroy(struct pipe_texture *pt)
{
struct nv50_miptree *mt = nv50_miptree(pt);
pipe_buffer_reference(&mt->buffer, NULL);
FREE(mt);
}
static struct pipe_surface *
nv50_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags)
{
struct nv50_miptree *mt = nv50_miptree(pt);
struct nv50_miptree_level *lvl = &mt->level[level];
struct pipe_surface *ps;
int img;
if (pt->target == PIPE_TEXTURE_CUBE)
img = face;
else
if (pt->target == PIPE_TEXTURE_3D)
img = zslice;
else
img = 0;
ps = CALLOC_STRUCT(pipe_surface);
if (!ps)
return NULL;
pipe_texture_reference(&ps->texture, pt);
ps->format = pt->format;
ps->width = pt->width[level];
ps->height = pt->height[level];
ps->usage = flags;
pipe_reference_init(&ps->reference, 1);
ps->face = face;
ps->level = level;
ps->zslice = zslice;
ps->offset = lvl->image_offset[img];
return ps;
}
static void
nv50_miptree_surface_del(struct pipe_surface *ps)
{
struct nv50_surface *s = nv50_surface(ps);
pipe_texture_reference(&ps->texture, NULL);
FREE(s);
}
void
nv50_screen_init_miptree_functions(struct pipe_screen *pscreen)
{
pscreen->texture_create = nv50_miptree_create;
pscreen->texture_blanket = nv50_miptree_blanket;
pscreen->texture_destroy = nv50_miptree_destroy;
pscreen->get_tex_surface = nv50_miptree_surface_new;
pscreen->tex_surface_destroy = nv50_miptree_surface_del;
}
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