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/*
* Copyright © 2014 Broadcom
*
* 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 V3D_TILING_H
#define V3D_TILING_H
#include "util/u_box.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 v3d_resource.c, which maps directly to the Memory
* Format field of render target and Z/Stencil config.
*/
enum v3d_tiling_mode {
/* Untiled resources. Not valid as texture inputs. */
V3D_TILING_RASTER,
/* Single line of u-tiles. */
V3D_TILING_LINEARTILE,
/* Departure from standard 4-UIF block column format. */
V3D_TILING_UBLINEAR_1_COLUMN,
/* Departure from standard 4-UIF block column format. */
V3D_TILING_UBLINEAR_2_COLUMN,
/* Normal tiling format: grouped in 4x4 UIFblocks, each of which is
* split 2x2 into utiles.
*/
V3D_TILING_UIF_NO_XOR,
/* Normal tiling format: grouped in 4x4 UIFblocks, each of which is
* split 2x2 into utiles.
*/
V3D_TILING_UIF_XOR,
};
uint32_t v3d_utile_width(int cpp) ATTRIBUTE_CONST;
uint32_t v3d_utile_height(int cpp) ATTRIBUTE_CONST;
bool v3d_size_is_lt(uint32_t width, uint32_t height, int cpp) ATTRIBUTE_CONST;
void v3d_load_tiled_image(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
enum v3d_tiling_mode tiling_format, int cpp,
uint32_t image_h,
const struct pipe_box *box);
void v3d_store_tiled_image(void *dst, uint32_t dst_stride,
void *src, uint32_t src_stride,
enum v3d_tiling_mode tiling_format, int cpp,
uint32_t image_h,
const struct pipe_box *box);
#endif /* V3D_TILING_H */
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