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/*
* Mesa 3-D graphics library
*
* Copyright (C) 2012-2013 LunarG, Inc.
*
* 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 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:
* Chia-I Wu <olv@lunarg.com>
*/
#ifndef ILO_RESOURCE_H
#define ILO_RESOURCE_H
#include "intel_winsys.h"
#include "ilo_common.h"
#include "ilo_screen.h"
enum ilo_texture_flags {
ILO_TEXTURE_RENDER_WRITE = 1 << 0,
ILO_TEXTURE_BLT_WRITE = 1 << 1,
ILO_TEXTURE_CPU_WRITE = 1 << 2,
ILO_TEXTURE_RENDER_READ = 1 << 3,
ILO_TEXTURE_BLT_READ = 1 << 4,
ILO_TEXTURE_CPU_READ = 1 << 5,
ILO_TEXTURE_CLEAR = 1 << 6,
ILO_TEXTURE_HIZ = 1 << 7,
};
struct ilo_buffer {
struct pipe_resource base;
struct intel_bo *bo;
unsigned bo_size;
unsigned bo_flags;
};
/**
* A 3D image slice, cube face, or array layer.
*/
struct ilo_texture_slice {
/* 2D offset to the slice */
unsigned x, y;
unsigned flags;
};
struct ilo_texture {
struct pipe_resource base;
bool imported;
unsigned bo_flags;
enum pipe_format bo_format;
struct intel_bo *bo;
/*
* These are the values passed to or returned from winsys for bo
* allocation. As such,
*
* - width and height are in blocks,
* - cpp is the block size in bytes, and
* - stride is the distance in bytes between two block rows.
*/
int bo_width, bo_height, bo_cpp, bo_stride;
enum intel_tiling_mode tiling;
bool compressed;
unsigned block_width;
unsigned block_height;
/* true if the mip level alignments are stricter */
bool halign_8, valign_4;
/* true if space is reserved between layers */
bool array_spacing_full;
/* true if samples are interleaved */
bool interleaved;
struct ilo_texture_slice *slices[PIPE_MAX_TEXTURE_LEVELS];
struct ilo_texture *separate_s8;
struct {
struct intel_bo *bo;
int bo_stride;
} hiz;
};
static inline struct ilo_buffer *
ilo_buffer(struct pipe_resource *res)
{
return (struct ilo_buffer *)
((res && res->target == PIPE_BUFFER) ? res : NULL);
}
static inline struct ilo_texture *
ilo_texture(struct pipe_resource *res)
{
return (struct ilo_texture *)
((res && res->target != PIPE_BUFFER) ? res : NULL);
}
void
ilo_init_resource_functions(struct ilo_screen *is);
bool
ilo_buffer_alloc_bo(struct ilo_buffer *buf);
bool
ilo_texture_alloc_bo(struct ilo_texture *tex);
static inline struct ilo_texture_slice *
ilo_texture_get_slice(const struct ilo_texture *tex,
unsigned level, unsigned slice)
{
assert(level <= tex->base.last_level);
assert(slice < ((tex->base.target == PIPE_TEXTURE_3D) ?
u_minify(tex->base.depth0, level) : tex->base.array_size));
return &tex->slices[level][slice];
}
unsigned
ilo_texture_get_slice_offset(const struct ilo_texture *tex,
unsigned level, unsigned slice,
unsigned *x_offset, unsigned *y_offset);
static inline void
ilo_texture_set_slice_flags(struct ilo_texture *tex, unsigned level,
unsigned first_slice, unsigned num_slices,
unsigned mask, unsigned value)
{
const struct ilo_texture_slice *last =
ilo_texture_get_slice(tex, level, first_slice + num_slices - 1);
struct ilo_texture_slice *slice =
ilo_texture_get_slice(tex, level, first_slice);
while (slice <= last) {
slice->flags = (slice->flags & ~mask) | (value & mask);
slice++;
}
}
static inline bool
ilo_texture_can_enable_hiz(const struct ilo_texture *tex, unsigned level,
unsigned first_slice, unsigned num_slices)
{
const struct ilo_screen *is = ilo_screen(tex->base.screen);
const struct ilo_texture_slice *slice =
ilo_texture_get_slice(tex, level, first_slice);
if (!tex->hiz.bo)
return false;
/* we can adjust 3DSTATE_DEPTH_BUFFER for the first slice */
if (level == 0 && first_slice == 0 && num_slices == 1)
return true;
/* HiZ is non-mipmapped and non-array on GEN6 */
assert(is->dev.gen > ILO_GEN(6));
/*
* Either all or none of the slices in the same level have ILO_TEXTURE_HIZ
* set. It suffices to check only the first slice.
*/
return (slice->flags & ILO_TEXTURE_HIZ);
}
#endif /* ILO_RESOURCE_H */
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