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cell: Protected use of non-initialized untile buffers

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This commit is contained in:
Jonathan White 2008-10-30 15:53:12 -06:00
parent 711f8a1dd9
commit 443e102fdc
1 changed files with 7 additions and 4 deletions
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11
src/gallium/drivers/cell/ppu/cell_texture.c
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@ -376,8 +376,10 @@ cell_untwiddle_texture(struct pipe_screen *screen,
}
break;
default:
printf("Cell: untwiddle unsupported texture format\n");
;
{
ct->untiled_data[level] = NULL;
printf("Cell: untwiddle unsupported texture format\n");
}
}
pipe_buffer_unmap(screen, surface->buffer);
@ -442,7 +444,8 @@ cell_tex_surface_release(struct pipe_screen *screen,
struct cell_texture *ct = cell_texture((*s)->texture);
const uint level = (*s)->level;
if ((*s)->usage & PIPE_BUFFER_USAGE_CPU_READ) {
if (((*s)->usage & PIPE_BUFFER_USAGE_CPU_READ) && (ct->untiled_data[level]))
{
align_free(ct->untiled_data[level]);
ct->untiled_data[level] = NULL;
}
@ -476,7 +479,7 @@ cell_surface_map(struct pipe_screen *screen,
return NULL;
else
{
if (surface->usage & PIPE_BUFFER_USAGE_CPU_READ) {
if ((surface->usage & PIPE_BUFFER_USAGE_CPU_READ) && (ct->untiled_data[level])) {
return (void *) ((ubyte *) ct->untiled_data[level] + surface->offset);
}
else {