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/*
* Copyright © 2014-2017 Broadcom
* 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.
*/
#ifndef VC5_RESOURCE_H
#define VC5_RESOURCE_H
#include "vc5_screen.h"
#include "util/u_transfer.h"
/* A UIFblock is a 256-byte region of memory that's 256-byte aligned. These
* will be grouped in 4x4 blocks (left-to-right, then top-to-bottom) in a 4KB
* page. Those pages are then arranged left-to-right, top-to-bottom, to cover
* an image.
*
* The inside of a UIFblock, for packed pixels, will be split into 4 64-byte
* utiles. Utiles may be 8x8 (8bpp), 8x4(16bpp) or 4x4 (32bpp).
*/
/**
* Tiling mode enum used for vc5_resource.c, which maps directly to the Memory
* Format field of render target and Z/Stencil config.
*/
enum vc5_tiling_mode {
/* Untiled resources. Not valid as texture inputs. */
VC5_TILING_RASTER,
/* Single line of u-tiles. */
VC5_TILING_LINEARTILE,
/* Departure from standard 4-UIF block column format. */
VC5_TILING_UBLINEAR_1_COLUMN,
/* Departure from standard 4-UIF block column format. */
VC5_TILING_UBLINEAR_2_COLUMN,
/* Normal tiling format: grouped in 4x4 UIFblocks, each of which is
* split 2x2 into utiles.
*/
VC5_TILING_UIF_NO_XOR,
/* Normal tiling format: grouped in 4x4 UIFblocks, each of which is
* split 2x2 into utiles.
*/
VC5_TILING_UIF_XOR,
};
struct vc5_transfer {
struct pipe_transfer base;
void *map;
};
struct vc5_resource_slice {
uint32_t offset;
uint32_t stride;
uint32_t padded_height;
uint32_t size;
uint8_t ub_pad;
enum vc5_tiling_mode tiling;
};
struct vc5_surface {
struct pipe_surface base;
uint32_t offset;
enum vc5_tiling_mode tiling;
/**
* Output image format for TILE_RENDERING_MODE_CONFIGURATION
*/
uint8_t format;
/**
* Internal format of the tile buffer for
* TILE_RENDERING_MODE_CONFIGURATION.
*/
uint8_t internal_type;
/**
* internal bpp value (0=32bpp, 2=128bpp) for color buffers in
* TILE_RENDERING_MODE_CONFIGURATION.
*/
uint8_t internal_bpp;
uint32_t padded_height_of_output_image_in_uif_blocks;
/* If the resource being referenced is separate stencil, then this is
* the surface to use when reading/writing stencil.
*/
struct pipe_surface *separate_stencil;
};
struct vc5_resource {
struct pipe_resource base;
struct vc5_bo *bo;
struct vc5_resource_slice slices[VC5_MAX_MIP_LEVELS];
uint32_t cube_map_stride;
int cpp;
bool tiled;
/**
* Number of times the resource has been written to.
*
* This is used to track whether we need to load the surface on first
* rendering.
*/
uint64_t writes;
/**
* Bitmask of PIPE_CLEAR_COLOR0, PIPE_CLEAR_DEPTH, PIPE_CLEAR_STENCIL
* for which parts of the resource are defined.
*
* Used for avoiding fallback to quad clears for clearing just depth,
* when the stencil contents have never been initialized. Note that
* we're lazy and fields not present in the buffer (DEPTH in a color
* buffer) may get marked.
*/
uint32_t initialized_buffers;
enum pipe_format internal_format;
/* Resource storing the S8 part of a Z32F_S8 resource, or NULL. */
struct vc5_resource *separate_stencil;
};
static inline struct vc5_resource *
vc5_resource(struct pipe_resource *prsc)
{
return (struct vc5_resource *)prsc;
}
static inline struct vc5_surface *
vc5_surface(struct pipe_surface *psurf)
{
return (struct vc5_surface *)psurf;
}
static inline struct vc5_transfer *
vc5_transfer(struct pipe_transfer *ptrans)
{
return (struct vc5_transfer *)ptrans;
}
void vc5_resource_screen_init(struct pipe_screen *pscreen);
void vc5_resource_context_init(struct pipe_context *pctx);
struct pipe_resource *vc5_resource_create(struct pipe_screen *pscreen,
const struct pipe_resource *tmpl);
#endif /* VC5_RESOURCE_H */
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