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/*
* Copyright (c) 2012-2015 Etnaviv Project
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Wladimir J. van der Laan <laanwj@gmail.com>
*/
#ifndef H_ETNAVIV_RESOURCE
#define H_ETNAVIV_RESOURCE
#include "etnaviv_internal.h"
#include "etnaviv_tiling.h"
#include "pipe/p_state.h"
#include "util/list.h"
struct pipe_screen;
struct etna_resource_level {
unsigned width, padded_width; /* in pixels */
unsigned height, padded_height; /* in samples */
unsigned offset; /* offset into memory area */
uint32_t stride; /* row stride */
uint32_t layer_stride; /* layer stride */
unsigned size; /* total size of memory area */
uint32_t ts_offset;
uint32_t ts_layer_stride;
uint32_t ts_size;
uint32_t clear_value; /* clear value of resource level (mainly for TS) */
bool ts_valid;
};
/* status of queued up but not flushed reads and write operations.
* In _transfer_map() we need to know if queued up rendering needs
* to be flushed to preserve the order of cpu and gpu access. */
enum etna_resource_status {
ETNA_PENDING_WRITE = 0x01,
ETNA_PENDING_READ = 0x02,
};
struct etna_resource {
struct pipe_resource base;
struct renderonly_scanout *scanout;
uint32_t seqno;
uint32_t flush_seqno;
/* only lod 0 used for non-texture buffers */
/* Layout for surface (tiled, multitiled, split tiled, ...) */
enum etna_surface_layout layout;
/* Horizontal alignment for texture unit (TEXTURE_HALIGN_*) */
unsigned halign;
struct etna_bo *bo; /* Surface video memory */
struct etna_bo *ts_bo; /* Tile status video memory */
struct etna_resource_level levels[ETNA_NUM_LOD];
/* When we are rendering to a texture, we need a differently tiled resource */
struct pipe_resource *texture;
/*
* If imported resources have an render/sampler incompatible tiling, we keep
* them as an external resource, which is blitted as needed.
*/
struct pipe_resource *external;
enum etna_resource_status status;
/* resources accessed by queued but not flushed draws are tracked
* in the used_resources list. */
struct list_head list;
struct etna_context *pending_ctx;
};
/* returns TRUE if a is newer than b */
static inline bool
etna_resource_newer(struct etna_resource *a, struct etna_resource *b)
{
return (int)(a->seqno - b->seqno) > 0;
}
/* returns TRUE if a is older than b */
static inline bool
etna_resource_older(struct etna_resource *a, struct etna_resource *b)
{
return (int)(a->seqno - b->seqno) < 0;
}
/* returns TRUE if the resource needs a resolve to itself */
static inline bool
etna_resource_needs_flush(struct etna_resource *res)
{
return res->ts_bo && ((int)(res->seqno - res->flush_seqno) > 0);
}
/* is the resource only used on the sampler? */
static inline bool
etna_resource_sampler_only(const struct pipe_resource *pres)
{
return (pres->bind & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET |
PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_BLENDABLE)) ==
PIPE_BIND_SAMPLER_VIEW;
}
static inline struct etna_resource *
etna_resource(struct pipe_resource *p)
{
return (struct etna_resource *)p;
}
void
etna_resource_used(struct etna_context *ctx, struct pipe_resource *prsc,
enum etna_resource_status status);
static inline void
resource_read(struct etna_context *ctx, struct pipe_resource *prsc)
{
etna_resource_used(ctx, prsc, ETNA_PENDING_READ);
}
static inline void
resource_written(struct etna_context *ctx, struct pipe_resource *prsc)
{
etna_resource_used(ctx, prsc, ETNA_PENDING_WRITE);
}
/* Allocate Tile Status for an etna resource.
* Tile status is a cache of the clear status per tile. This means a smaller
* surface has to be cleared which is faster.
* This is also called "fast clear". */
bool
etna_screen_resource_alloc_ts(struct pipe_screen *pscreen,
struct etna_resource *prsc);
struct pipe_resource *
etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
const struct pipe_resource *templat);
void
etna_resource_screen_init(struct pipe_screen *pscreen);
#endif
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