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Diffstat (limited to '')
| -rw-r--r-- | third_party/dav1d/src/data.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/third_party/dav1d/src/data.c b/third_party/dav1d/src/data.c new file mode 100644 index 0000000000..8a1386ad95 --- /dev/null +++ b/third_party/dav1d/src/data.c @@ -0,0 +1,145 @@ +/* + * Copyright © 2018, VideoLAN and dav1d authors + * Copyright © 2018, Two Orioles, LLC + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" + +#include <errno.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> + +#include "dav1d/data.h" + +#include "common/attributes.h" +#include "common/validate.h" + +#include "src/data.h" +#include "src/ref.h" + +uint8_t *dav1d_data_create_internal(Dav1dData *const buf, const size_t sz) { + validate_input_or_ret(buf != NULL, NULL); + + if (sz > SIZE_MAX / 2) return NULL; + buf->ref = dav1d_ref_create(sz); + if (!buf->ref) return NULL; + buf->data = buf->ref->const_data; + buf->sz = sz; + dav1d_data_props_set_defaults(&buf->m); + buf->m.size = sz; + + return buf->ref->data; +} + +int dav1d_data_wrap_internal(Dav1dData *const buf, const uint8_t *const ptr, + const size_t sz, + void (*const free_callback)(const uint8_t *data, + void *cookie), + void *const cookie) +{ + validate_input_or_ret(buf != NULL, DAV1D_ERR(EINVAL)); + validate_input_or_ret(ptr != NULL, DAV1D_ERR(EINVAL)); + validate_input_or_ret(free_callback != NULL, DAV1D_ERR(EINVAL)); + + buf->ref = dav1d_ref_wrap(ptr, free_callback, cookie); + if (!buf->ref) return DAV1D_ERR(ENOMEM); + buf->data = ptr; + buf->sz = sz; + dav1d_data_props_set_defaults(&buf->m); + buf->m.size = sz; + + return 0; +} + +int dav1d_data_wrap_user_data_internal(Dav1dData *const buf, + const uint8_t *const user_data, + void (*const free_callback)(const uint8_t *user_data, + void *cookie), + void *const cookie) +{ + validate_input_or_ret(buf != NULL, DAV1D_ERR(EINVAL)); + validate_input_or_ret(free_callback != NULL, DAV1D_ERR(EINVAL)); + + buf->m.user_data.ref = dav1d_ref_wrap(user_data, free_callback, cookie); + if (!buf->m.user_data.ref) return DAV1D_ERR(ENOMEM); + buf->m.user_data.data = user_data; + + return 0; +} + + +void dav1d_data_ref(Dav1dData *const dst, const Dav1dData *const src) { + validate_input(dst != NULL); + validate_input(dst->data == NULL); + validate_input(src != NULL); + + if (src->ref) { + validate_input(src->data != NULL); + dav1d_ref_inc(src->ref); + } + if (src->m.user_data.ref) dav1d_ref_inc(src->m.user_data.ref); + *dst = *src; +} + +void dav1d_data_props_copy(Dav1dDataProps *const dst, + const Dav1dDataProps *const src) +{ + assert(dst != NULL); + assert(src != NULL); + + dav1d_ref_dec(&dst->user_data.ref); + *dst = *src; + if (dst->user_data.ref) dav1d_ref_inc(dst->user_data.ref); +} + +void dav1d_data_props_set_defaults(Dav1dDataProps *const props) { + assert(props != NULL); + + memset(props, 0, sizeof(*props)); + props->timestamp = INT64_MIN; + props->offset = -1; +} + +void dav1d_data_props_unref_internal(Dav1dDataProps *const props) { + validate_input(props != NULL); + + struct Dav1dRef *user_data_ref = props->user_data.ref; + dav1d_data_props_set_defaults(props); + dav1d_ref_dec(&user_data_ref); +} + +void dav1d_data_unref_internal(Dav1dData *const buf) { + validate_input(buf != NULL); + + struct Dav1dRef *user_data_ref = buf->m.user_data.ref; + if (buf->ref) { + validate_input(buf->data != NULL); + dav1d_ref_dec(&buf->ref); + } + memset(buf, 0, sizeof(*buf)); + dav1d_data_props_set_defaults(&buf->m); + dav1d_ref_dec(&user_data_ref); +} |