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drv_priv.h
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drv_priv.h
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/*
* Copyright 2016 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef DRV_PRIV_H
#define DRV_PRIV_H
#include <stdint.h>
#include <stdlib.h>
#include <sys/types.h>
#include <stdatomic.h>
#include "drv.h"
#ifndef DISABLE_LOCK
#define ATOMIC_LOCK(X) \
while (atomic_flag_test_and_set(X)) { \
}
#define ATOMIC_UNLOCK(X) \
atomic_flag_clear(X);
#else
#define ATOMIC_LOCK(X) ((void)0)
#define ATOMIC_UNLOCK(X) ((void)0)
#endif
struct bo {
struct driver *drv;
uint32_t width;
uint32_t height;
uint32_t format;
uint32_t tiling;
size_t num_planes;
union bo_handle handles[DRV_MAX_PLANES];
uint32_t offsets[DRV_MAX_PLANES];
uint32_t sizes[DRV_MAX_PLANES];
uint32_t strides[DRV_MAX_PLANES];
uint64_t format_modifiers[DRV_MAX_PLANES];
uint64_t use_flags;
size_t total_size;
void *priv;
};
struct kms_item {
uint32_t format;
uint64_t modifier;
uint64_t use_flags;
};
struct format_metadata {
uint32_t priority;
uint32_t tiling;
uint64_t modifier;
};
struct combination {
uint32_t format;
struct format_metadata metadata;
uint64_t use_flags;
};
struct combinations {
struct combination *data;
uint32_t size;
uint32_t allocations;
};
struct driver {
int fd;
struct backend *backend;
void *priv;
void *buffer_table;
void *map_table;
struct combinations combos;
atomic_flag driver_lock;
};
struct backend {
char *name;
int (*init)(struct driver *drv);
void (*close)(struct driver *drv);
int (*bo_create)(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
uint64_t use_flags);
int (*bo_create_with_modifiers)(struct bo *bo, uint32_t width, uint32_t height,
uint32_t format, const uint64_t *modifiers, uint32_t count);
int (*bo_destroy)(struct bo *bo);
int (*bo_import)(struct bo *bo, struct drv_import_fd_data *data);
void *(*bo_map)(struct bo *bo, struct map_info *data, size_t plane, uint32_t map_flags);
int (*bo_unmap)(struct bo *bo, struct map_info *data);
int (*bo_invalidate)(struct bo *bo, struct map_info *data);
int (*bo_flush)(struct bo *bo, struct map_info *data);
uint32_t (*resolve_format)(uint32_t format, uint64_t use_flags);
};
// clang-format off
#define BO_USE_RENDER_MASK BO_USE_LINEAR | BO_USE_PROTECTED | BO_USE_RENDERING | \
BO_USE_RENDERSCRIPT | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | \
BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY | BO_USE_TEXTURE
#define BO_USE_TEXTURE_MASK BO_USE_LINEAR | BO_USE_PROTECTED | BO_USE_RENDERSCRIPT | \
BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | \
BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY | BO_USE_TEXTURE
#define BO_USE_SW_MASK BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | \
BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY
#define LINEAR_METADATA (struct format_metadata) { 0, 1, DRM_FORMAT_MOD_NONE }
// clang-format on
#endif