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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 "nv20_context.h"
#include "nv20_screen.h"
static void
nv20_miptree_layout(struct nv20_miptree *nv20mt)
{
struct pipe_texture *pt = &nv20mt->base;
uint width = pt->width0;
uint offset = 0;
int nr_faces, l, f;
uint wide_pitch = pt->tex_usage & (PIPE_TEXTURE_USAGE_SAMPLER |
PIPE_TEXTURE_USAGE_DEPTH_STENCIL |
PIPE_TEXTURE_USAGE_RENDER_TARGET |
PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
PIPE_TEXTURE_USAGE_PRIMARY);
if (pt->target == PIPE_TEXTURE_CUBE) {
nr_faces = 6;
} else {
nr_faces = 1;
}
for (l = 0; l <= pt->last_level; l++) {
if (wide_pitch && (pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR))
nv20mt->level[l].pitch = align(pf_get_stride(pt->format, pt->width0), 64);
else
nv20mt->level[l].pitch = pf_get_stride(pt->format, width);
nv20mt->level[l].image_offset =
CALLOC(nr_faces, sizeof(unsigned));
width = u_minify(width, 1);
}
for (f = 0; f < nr_faces; f++) {
for (l = 0; l < pt->last_level; l++) {
nv20mt->level[l].image_offset[f] = offset;
if (!(pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR) &&
u_minify(pt->width0, l + 1) > 1 && u_minify(pt->height0, l + 1) > 1)
offset += align(nv20mt->level[l].pitch * u_minify(pt->height0, l), 64);
else
offset += nv20mt->level[l].pitch * u_minify(pt->height0, l);
}
nv20mt->level[l].image_offset[f] = offset;
offset += nv20mt->level[l].pitch * u_minify(pt->height0, l);
}
nv20mt->total_size = offset;
}
static struct pipe_texture *
nv20_miptree_blanket(struct pipe_screen *pscreen, const struct pipe_texture *pt,
const unsigned *stride, struct pipe_buffer *pb)
{
struct nv20_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(nv20_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);
return &mt->base;
}
static struct pipe_texture *
nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt)
{
struct nv20_miptree *mt;
unsigned buf_usage = PIPE_BUFFER_USAGE_PIXEL |
NOUVEAU_BUFFER_USAGE_TEXTURE;
mt = MALLOC(sizeof(struct nv20_miptree));
if (!mt)
return NULL;
mt->base = *pt;
pipe_reference_init(&mt->base.reference, 1);
mt->base.screen = screen;
/* Swizzled textures must be POT */
if (pt->width0 & (pt->width0 - 1) ||
pt->height0 & (pt->height0 - 1))
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
else
if (pt->tex_usage & (PIPE_TEXTURE_USAGE_PRIMARY |
PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
PIPE_TEXTURE_USAGE_DEPTH_STENCIL))
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
else
if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC)
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
else {
switch (pt->format) {
/* TODO: Figure out which formats can be swizzled */
case PIPE_FORMAT_A8R8G8B8_UNORM:
case PIPE_FORMAT_X8R8G8B8_UNORM:
case PIPE_FORMAT_R16_SNORM:
{
if (debug_get_bool_option("NOUVEAU_NO_SWIZZLE", FALSE))
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
break;
}
default:
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
}
}
if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC)
buf_usage |= PIPE_BUFFER_USAGE_CPU_READ_WRITE;
nv20_miptree_layout(mt);
mt->buffer = screen->buffer_create(screen, 256, buf_usage, mt->total_size);
if (!mt->buffer) {
FREE(mt);
return NULL;
}
return &mt->base;
}
static void
nv20_miptree_destroy(struct pipe_texture *pt)
{
struct nv20_miptree *nv20mt = (struct nv20_miptree *)pt;
int l;
pipe_buffer_reference(&nv20mt->buffer, NULL);
for (l = 0; l <= pt->last_level; l++) {
if (nv20mt->level[l].image_offset)
FREE(nv20mt->level[l].image_offset);
}
}
static struct pipe_surface *
nv20_miptree_surface_get(struct pipe_screen *screen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags)
{
struct nv20_miptree *nv20mt = (struct nv20_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 = nv20mt->level[level].pitch;
if (pt->target == PIPE_TEXTURE_CUBE) {
ns->base.offset = nv20mt->level[level].image_offset[face];
} else
if (pt->target == PIPE_TEXTURE_3D) {
ns->base.offset = nv20mt->level[level].image_offset[zslice];
} else {
ns->base.offset = nv20mt->level[level].image_offset[0];
}
return &ns->base;
}
static void
nv20_miptree_surface_destroy(struct pipe_surface *ps)
{
pipe_texture_reference(&ps->texture, NULL);
FREE(ps);
}
void nv20_screen_init_miptree_functions(struct pipe_screen *pscreen)
{
pscreen->texture_create = nv20_miptree_create;
pscreen->texture_blanket = nv20_miptree_blanket;
pscreen->texture_destroy = nv20_miptree_destroy;
pscreen->get_tex_surface = nv20_miptree_surface_get;
pscreen->tex_surface_destroy = nv20_miptree_surface_destroy;
}
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