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#ifndef NVFX_RESOURCE_H
#define NVFX_RESOURCE_H
#include "util/u_transfer.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include <nouveau/nouveau_bo.h>
struct pipe_resource;
/* This gets further specialized into either buffer or texture
* structures. In the future we'll want to remove much of that
* distinction, but for now try to keep as close to the existing code
* as possible and use the vtbl struct to choose between the two
* underlying implementations.
*/
struct nvfx_resource {
struct pipe_resource base;
struct u_resource_vtbl *vtbl;
struct nouveau_bo *bo;
};
#define NVFX_RESOURCE_FLAG_LINEAR (PIPE_RESOURCE_FLAG_DRV_PRIV << 0)
static inline int
nvfx_resource_on_gpu(struct pipe_resource* pr)
{
#if 0
// a compiler error here means you need to apply libdrm-nouveau-add-domain.patch to libdrm
// TODO: return FALSE if not VRAM and on a PCI-E system
return ((struct nvfx_resource*)pr)->bo->domain & (NOUVEAU_BO_VRAM | NOUVEAU_BO_GART);
#else
return TRUE;
#endif
}
#define NVFX_MAX_TEXTURE_LEVELS 16
struct nvfx_miptree {
struct nvfx_resource base;
unsigned linear_pitch; /* for linear textures, 0 for swizzled and compressed textures with level-dependent minimal pitch */
unsigned face_size; /* 128-byte aligned face/total size */
unsigned level_offset[NVFX_MAX_TEXTURE_LEVELS];
};
struct nvfx_surface {
struct pipe_surface base;
unsigned pitch;
};
static INLINE
struct nvfx_resource *nvfx_resource(struct pipe_resource *resource)
{
return (struct nvfx_resource *)resource;
}
static INLINE struct nouveau_bo *
nvfx_surface_buffer(struct pipe_surface *surf)
{
struct nvfx_resource *mt = nvfx_resource(surf->texture);
return mt->bo;
}
void
nvfx_init_resource_functions(struct pipe_context *pipe);
void
nvfx_screen_init_resource_functions(struct pipe_screen *pscreen);
/* Internal:
*/
struct pipe_resource *
nvfx_miptree_create(struct pipe_screen *pscreen, const struct pipe_resource *pt);
struct pipe_resource *
nvfx_miptree_from_handle(struct pipe_screen *pscreen,
const struct pipe_resource *template,
struct winsys_handle *whandle);
struct pipe_resource *
nvfx_buffer_create(struct pipe_screen *pscreen,
const struct pipe_resource *template);
struct pipe_resource *
nvfx_user_buffer_create(struct pipe_screen *screen,
void *ptr,
unsigned bytes,
unsigned usage);
void
nvfx_miptree_surface_del(struct pipe_surface *ps);
struct pipe_surface *
nvfx_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_resource *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags);
/* only for miptrees, don't use for buffers */
/* NOTE: for swizzled 3D textures, this just returns the offset of the mipmap level */
static inline unsigned
nvfx_subresource_offset(struct pipe_resource* pt, unsigned face, unsigned level, unsigned zslice)
{
if(pt->target == PIPE_BUFFER)
return 0;
else
{
struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
unsigned offset = mt->level_offset[level];
if (pt->target == PIPE_TEXTURE_CUBE)
offset += mt->face_size * face;
else if (pt->target == PIPE_TEXTURE_3D && mt->linear_pitch)
offset += zslice * util_format_get_2d_size(pt->format, (mt->linear_pitch ? mt->linear_pitch : util_format_get_stride(pt->format, u_minify(pt->width0, level))), u_minify(pt->height0, level));
return offset;
}
}
static inline unsigned
nvfx_subresource_pitch(struct pipe_resource* pt, unsigned level)
{
if(pt->target == PIPE_BUFFER)
return ((struct nvfx_resource*)pt)->bo->size;
else
{
struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
if(mt->linear_pitch)
return mt->linear_pitch;
else
return util_format_get_stride(pt->format, u_minify(pt->width0, level));
}
}
#endif
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