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nv50: slightly less skeletal texture funcs, prevents fun segfaults

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This commit is contained in:
Ben Skeggs 2008-05-05 19:52:19 +10:00
parent 32ed02bcfb
commit 9b0054c7f8
1 changed files with 58 additions and 4 deletions
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62
src/gallium/drivers/nv50/nv50_miptree.c
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@ -1,29 +1,83 @@
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_util.h"
#include "pipe/p_screen.h"
#include "pipe/p_inlines.h"
#include "nv50_context.h"
struct nv50_miptree {
struct pipe_texture base;
struct pipe_buffer *buffer;
};
static INLINE struct nv50_miptree *
nv50_miptree(struct pipe_texture *pt)
{
return (struct nv50_miptree *)pt;
}
static struct pipe_texture *
nv50_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt)
{
struct pipe_winsys *ws = pscreen->winsys;
struct nv50_miptree *mt = CALLOC_STRUCT(nv50_miptree);
NOUVEAU_ERR("unimplemented\n");
return NULL;
mt->base = *pt;
mt->base.refcount = 1;
mt->base.screen = pscreen;
mt->buffer = ws->buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL,
512*32*4);
if (!mt->buffer) {
FREE(mt);
return NULL;
}
return &mt->base;
}
static void
nv50_miptree_release(struct pipe_screen *pscreen, struct pipe_texture **pt)
nv50_miptree_release(struct pipe_screen *pscreen, struct pipe_texture **ppt)
{
struct pipe_winsys *ws = pscreen->winsys;
struct pipe_texture *pt = *ppt;
NOUVEAU_ERR("unimplemented\n");
*ppt = NULL;
if (--pt->refcount <= 0) {
struct nv50_miptree *mt = nv50_miptree(pt);
pipe_buffer_reference(ws, &mt->buffer, NULL);
FREE(mt);
}
}
static struct pipe_surface *
nv50_miptree_surface(struct pipe_screen *pscreen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice)
{
struct pipe_winsys *ws = pscreen->winsys;
struct nv50_miptree *mt = nv50_miptree(pt);
struct pipe_surface *ps;
NOUVEAU_ERR("unimplemented\n");
return NULL;
ps = ws->surface_alloc(ws);
if (!ps)
return NULL;
pipe_buffer_reference(ws, &ps->buffer, mt->buffer);
ps->format = pt->format;
ps->cpp = pt->cpp;
ps->width = pt->width[level];
ps->height = pt->height[level];
ps->pitch = ps->width;
ps->offset = 0;
return ps;
}
void