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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 "core/intel_winsys.h"
#include "core/ilo_buffer.h"
#include "core/ilo_image.h"
#include "ilo_common.h"
#include "ilo_screen.h"
enum ilo_texture_flags {
/*
* Possible writers of a texture. There can be at most one writer at any
* time.
*
* Wine set in resolve flags (in ilo_blit_resolve_slices()), they indicate
* the new writer. When set in slice flags (ilo_texture_slice::flags),
* they indicate the writer since last resolve.
*/
ILO_TEXTURE_RENDER_WRITE = 1 << 0,
ILO_TEXTURE_BLT_WRITE = 1 << 1,
ILO_TEXTURE_CPU_WRITE = 1 << 2,
/*
* Possible readers of a texture. There may be multiple readers at any
* time.
*
* When set in resolve flags, they indicate the new readers. They are
* never set in slice flags.
*/
ILO_TEXTURE_RENDER_READ = 1 << 3,
ILO_TEXTURE_BLT_READ = 1 << 4,
ILO_TEXTURE_CPU_READ = 1 << 5,
/*
* Set when the texture is cleared.
*
* When set in resolve flags, the new writer will clear. When set in slice
* flags, the slice has been cleared to ilo_texture_slice::clear_value.
*/
ILO_TEXTURE_CLEAR = 1 << 6,
/*
* Set when HiZ can be enabled.
*
* It is never set in resolve flags. When set in slice flags, the slice
* can have HiZ enabled. It is to be noted that this bit is always set for
* either all or none of the slices in a level, allowing quick check in
* case of layered rendering.
*/
ILO_TEXTURE_HIZ = 1 << 7,
};
/**
* A 3D image slice, cube face, or array layer.
*/
struct ilo_texture_slice {
unsigned flags;
/*
* Slice clear value. It is served for two purposes
*
* - the clear value used in commands such as 3DSTATE_CLEAR_PARAMS
* - the clear value when ILO_TEXTURE_CLEAR is set
*
* Since commands such as 3DSTATE_CLEAR_PARAMS expect a single clear value
* for all slices, ilo_blit_resolve_slices() will silently make all slices
* to have the same clear value.
*/
uint32_t clear_value;
};
struct ilo_texture {
struct pipe_resource base;
bool imported;
struct ilo_image image;
/* XXX thread-safety */
struct ilo_texture_slice *slices[PIPE_MAX_TEXTURE_LEVELS];
struct ilo_texture *separate_s8;
};
struct ilo_buffer_resource {
struct pipe_resource base;
struct ilo_buffer buffer;
};
static inline struct ilo_buffer *
ilo_buffer(struct pipe_resource *res)
{
return (res && res->target == PIPE_BUFFER) ?
&((struct ilo_buffer_resource *) res)->buffer : 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_resource_rename_bo(struct pipe_resource *res);
/**
* Return the bo of the resource.
*/
static inline struct intel_bo *
ilo_resource_get_bo(struct pipe_resource *res)
{
return (res->target == PIPE_BUFFER) ?
ilo_buffer(res)->bo : ilo_texture(res)->image.bo;
}
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];
}
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 void
ilo_texture_set_slice_clear_value(struct ilo_texture *tex, unsigned level,
unsigned first_slice, unsigned num_slices,
uint32_t clear_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->clear_value = clear_value;
slice++;
}
}
static inline bool
ilo_texture_can_enable_hiz(const struct ilo_texture *tex, unsigned level,
unsigned first_slice, unsigned num_slices)
{
/*
* Either all or none of the slices in the same level have ILO_TEXTURE_HIZ
* set. It suffices to check only the first slice.
*/
const struct ilo_texture_slice *slice =
ilo_texture_get_slice(tex, level, 0);
return (tex->image.aux.bo && (slice->flags & ILO_TEXTURE_HIZ));
}
#endif /* ILO_RESOURCE_H */
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