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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
*
* 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, sublicense,
* 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 NONINFRINGEMENT. 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:
* Rob Clark <robclark@freedesktop.org>
*/
#ifndef FREEDRENO_RESOURCE_H_
#define FREEDRENO_RESOURCE_H_
#include "util/list.h"
#include "util/u_range.h"
#include "util/u_transfer.h"
#include "freedreno_util.h"
/* Texture Layout on a3xx:
*
* Each mipmap-level contains all of it's layers (ie. all cubmap
* faces, all 1d/2d array elements, etc). The texture sampler is
* programmed with the start address of each mipmap level, and hw
* derives the layer offset within the level.
*
* Texture Layout on a4xx:
*
* For cubemap and 2d array, each layer contains all of it's mipmap
* levels (layer_first layout).
*
* 3d textures are layed out as on a3xx, but unknown about 3d-array
* textures.
*
* In either case, the slice represents the per-miplevel information,
* but in layer_first layout it only includes the first layer, and
* an additional offset of (rsc->layer_size * layer) must be added.
*/
struct fd_resource_slice {
uint32_t offset; /* offset of first layer in slice */
uint32_t pitch;
uint32_t size0; /* size of first layer in slice */
};
/* 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 fd_resource_status {
FD_PENDING_WRITE = 0x01,
FD_PENDING_READ = 0x02,
};
struct fd_resource {
struct u_resource base;
struct fd_bo *bo;
uint32_t cpp;
bool layer_first; /* see above description */
uint32_t layer_size;
struct fd_resource_slice slices[MAX_MIP_LEVELS];
uint32_t timestamp;
/* buffer range that has been initialized */
struct util_range valid_buffer_range;
/* reference to the resource holding stencil data for a z32_s8 texture */
/* TODO rename to secondary or auxiliary? */
struct fd_resource *stencil;
/* pending read/write state: */
enum fd_resource_status status;
/* resources accessed by queued but not flushed draws are tracked
* in the used_resources list.
*/
struct list_head list;
struct fd_context *pending_ctx;
};
static inline struct fd_resource *
fd_resource(struct pipe_resource *ptex)
{
return (struct fd_resource *)ptex;
}
struct fd_transfer {
struct pipe_transfer base;
void *staging;
};
static inline struct fd_transfer *
fd_transfer(struct pipe_transfer *ptrans)
{
return (struct fd_transfer *)ptrans;
}
static inline struct fd_resource_slice *
fd_resource_slice(struct fd_resource *rsc, unsigned level)
{
assert(level <= rsc->base.b.last_level);
return &rsc->slices[level];
}
/* get offset for specified mipmap level and texture/array layer */
static inline uint32_t
fd_resource_offset(struct fd_resource *rsc, unsigned level, unsigned layer)
{
struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
unsigned offset;
if (rsc->layer_first) {
offset = slice->offset + (rsc->layer_size * layer);
} else {
offset = slice->offset + (slice->size0 * layer);
}
debug_assert(offset < fd_bo_size(rsc->bo));
return offset;
}
void fd_resource_screen_init(struct pipe_screen *pscreen);
void fd_resource_context_init(struct pipe_context *pctx);
#endif /* FREEDRENO_RESOURCE_H_ */
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