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softpipe: Implement texture blankets.

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This commit is contained in:
José Fonseca 2008-07-05 00:55:18 +09:00
parent 194cfc7a4e
commit 1942e29bf7
1 changed files with 34 additions and 0 deletions
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34
src/gallium/drivers/softpipe/sp_texture.c
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@ -162,6 +162,39 @@ softpipe_texture_create(struct pipe_screen *screen,
}
static struct pipe_texture *
softpipe_texture_blanket(struct pipe_screen * screen,
const struct pipe_texture *base,
const unsigned *stride,
struct pipe_buffer *buffer)
{
struct softpipe_texture *spt;
assert(screen);
/* Only supports one type */
if (base->target != PIPE_TEXTURE_2D ||
base->last_level != 0 ||
base->depth[0] != 1) {
return NULL;
}
spt = CALLOC_STRUCT(softpipe_texture);
if (!spt)
return NULL;
spt->base = *base;
spt->base.refcount = 1;
spt->base.screen = screen;
spt->base.nblocksx[0] = pf_get_nblocksx(&spt->base.block, spt->base.width[0]);
spt->base.nblocksy[0] = pf_get_nblocksy(&spt->base.block, spt->base.height[0]);
spt->stride[0] = stride[0];
pipe_buffer_reference(screen->winsys, &spt->buffer, buffer);
return &spt->base;
}
static void
softpipe_texture_release(struct pipe_screen *screen,
struct pipe_texture **pt)
@ -309,6 +342,7 @@ void
softpipe_init_screen_texture_funcs(struct pipe_screen *screen)
{
screen->texture_create = softpipe_texture_create;
screen->texture_blanket = softpipe_texture_blanket;
screen->texture_release = softpipe_texture_release;
screen->get_tex_surface = softpipe_get_tex_surface;