mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-05 13:30:02 -05:00
b6f01542d8
As reported by Marcello Blancasio, convert the offset to a signed int to avoid conversion without sign extension. Fixes unmap of stream memory. Fixes #103
219 lines
6.4 KiB
C
219 lines
6.4 KiB
C
/* Simple Plugin API
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*
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* Copyright © 2018 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __SPA_UTILS_DEFS_H__
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#define __SPA_UTILS_DEFS_H__
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#ifdef __cplusplus
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extern "C" {
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#else
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#include <stdbool.h>
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#endif
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#include <inttypes.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stddef.h>
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#include <stdio.h>
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#define SPA_ASYNC_BIT (1 << 30)
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#define SPA_ASYNC_MASK (3 << 30)
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#define SPA_ASYNC_SEQ_MASK (SPA_ASYNC_BIT - 1)
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#define SPA_RESULT_IS_OK(res) ((res) >= 0)
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#define SPA_RESULT_IS_ERROR(res) ((res) < 0)
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#define SPA_RESULT_IS_ASYNC(res) (((res) & SPA_ASYNC_MASK) == SPA_ASYNC_BIT)
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#define SPA_RESULT_ASYNC_SEQ(res) ((res) & SPA_ASYNC_SEQ_MASK)
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#define SPA_RESULT_RETURN_ASYNC(seq) (SPA_ASYNC_BIT | ((seq) & SPA_ASYNC_SEQ_MASK))
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#define SPA_FLAG_MASK(field,mask,flag) (((field) & (mask)) == (flag))
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#define SPA_FLAG_CHECK(field,flag) SPA_FLAG_MASK(field,flag,flag)
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#define SPA_FLAG_SET(field,flag) ((field) |= (flag))
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#define SPA_FLAG_UNSET(field,flag) ((field) &= ~(flag))
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enum spa_direction {
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SPA_DIRECTION_INPUT = 0,
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SPA_DIRECTION_OUTPUT = 1,
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};
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#define SPA_DIRECTION_REVERSE(d) ((d) ^ 1)
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#define SPA_RECTANGLE(width,height) (struct spa_rectangle){ width, height }
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struct spa_rectangle {
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uint32_t width;
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uint32_t height;
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};
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#define SPA_POINT(x,y) (struct spa_point){ x, y }
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struct spa_point {
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int32_t x;
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int32_t y;
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};
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#define SPA_REGION(x,y,width,height) (struct spa_region){ SPA_POINT(x,y), SPA_RECTANGLE(width,height) }
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struct spa_region {
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struct spa_point position;
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struct spa_rectangle size;
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};
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#define SPA_FRACTION(num,denom) (struct spa_fraction){ num, denom }
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struct spa_fraction {
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uint32_t num;
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uint32_t denom;
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};
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#define SPA_N_ELEMENTS(arr) (sizeof(arr) / sizeof((arr)[0]))
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#define SPA_MIN(a,b) \
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({ \
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__typeof__(a) _a = (a); \
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__typeof__(b) _b = (b); \
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_a < _b ? _a : _b; \
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})
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#define SPA_MAX(a,b) \
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({ \
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__typeof__(a) _a = (a); \
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__typeof__(b) _b = (b); \
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_a > _b ? _a : _b; \
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})
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#define SPA_CLAMP(v,low,high) \
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({ \
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__typeof__(v) _v = (v); \
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__typeof__(low) _low = (low); \
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__typeof__(high) _high = (high); \
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_v > _high ? _high : ( _v < _low ? _low : _v); \
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})
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#define SPA_MEMBER(b,o,t) ((t*)((uint8_t*)(b) + (int)(o)))
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#define SPA_CONTAINER_OF(p,t,m) (t*)((uint8_t*)p - offsetof (t,m))
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#define SPA_PTRDIFF(p1,p2) ((uint8_t*)(p1) - (uint8_t*)(p2))
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#define SPA_PTR_TO_INT(p) ((int) ((intptr_t) (p)))
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#define SPA_INT_TO_PTR(u) ((void*) ((intptr_t) (u)))
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#define SPA_PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p)))
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#define SPA_UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u)))
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#define SPA_TIME_INVALID ((int64_t)INT64_MIN)
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#define SPA_IDX_INVALID ((unsigned int)-1)
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#define SPA_ID_INVALID ((uint32_t)0xffffffff)
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#define SPA_NSEC_PER_SEC (1000000000ll)
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#define SPA_NSEC_PER_MSEC (1000000ll)
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#define SPA_NSEC_PER_USEC (1000ll)
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#define SPA_USEC_PER_SEC (1000000ll)
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#define SPA_USEC_PER_MSEC (1000ll)
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#define SPA_MSEC_PER_SEC (1000ll)
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#define SPA_TIMESPEC_TO_NSEC(ts) ((ts)->tv_sec * SPA_NSEC_PER_SEC + (ts)->tv_nsec)
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#define SPA_TIMESPEC_TO_USEC(ts) ((ts)->tv_sec * SPA_USEC_PER_SEC + (ts)->tv_nsec / SPA_NSEC_PER_USEC)
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#define SPA_TIMEVAL_TO_NSEC(tv) ((tv)->tv_sec * SPA_NSEC_PER_SEC + (tv)->tv_usec * SPA_NSEC_PER_USEC)
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#define SPA_TIMEVAL_TO_USEC(tv) ((tv)->tv_sec * SPA_USEC_PER_SEC + (tv)->tv_usec)
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#ifdef __GNUC__
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#define SPA_PRINTF_FUNC(fmt, arg1) __attribute__((format(printf, fmt, arg1)))
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#define SPA_ALIGNED(align) __attribute__((aligned(align)))
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#define SPA_DEPRECATED __attribute__ ((deprecated))
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#else
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#define SPA_PRINTF_FUNC(fmt, arg1)
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#define SPA_ALIGNED(align)
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#define SPA_DEPRECATED
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#endif
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#define SPA_ROUND_DOWN_N(num,align) ((num) & ~((align) - 1))
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#define SPA_ROUND_UP_N(num,align) SPA_ROUND_DOWN_N((num) + ((align) - 1),align)
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#ifndef SPA_LIKELY
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#ifdef __GNUC__
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#define SPA_LIKELY(x) (__builtin_expect(!!(x),1))
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#define SPA_UNLIKELY(x) (__builtin_expect(!!(x),0))
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#else
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#define SPA_LIKELY(x) (x)
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#define SPA_UNLIKELY(x) (x)
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#endif
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#endif
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#define SPA_STRINGIFY_1(x...) #x
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#define SPA_STRINGIFY(x...) SPA_STRINGIFY_1(x)
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#define spa_return_if_fail(expr) \
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do { \
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if (SPA_UNLIKELY(!(expr))) \
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return; \
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} while(false)
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#define spa_return_val_if_fail(expr, val) \
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do { \
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if (SPA_UNLIKELY(!(expr))) \
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return (val); \
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} while(false)
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/* spa_assert_se() is an assert which guarantees side effects of x,
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* i.e. is never optimized away, regardless of NDEBUG or FASTPATH. */
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#define spa_assert_se(expr) \
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do { \
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if (SPA_UNLIKELY(!(expr))) \
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fprintf(stderr, "'%s' failed at %s:%u %s()", \
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#expr , __FILE__, __LINE__, __func__); \
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abort(); \
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} while (false)
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#define spa_assert(expr) \
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do { \
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if (SPA_UNLIKELY(!(expr))) { \
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fprintf(stderr, "'%s' failed at %s:%u %s()", \
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#expr , __FILE__, __LINE__, __func__); \
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abort(); \
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} \
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} while (false)
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#define spa_assert_not_reached() \
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do { \
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fprintf(stderr, "Code should not be reached at %s:%u %s()", \
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__FILE__, __LINE__, __func__); \
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abort(); \
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} while (false)
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/* Does exactly nothing */
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#define spa_nop() do {} while (false)
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#define spa_memzero(x,l) (memset((x), 0, (l)))
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#define spa_zero(x) (spa_memzero(&(x), sizeof(x)))
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#define spa_strerror(err) \
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({ \
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int __err = -err; \
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if (SPA_RESULT_IS_ASYNC(err)) \
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__err = EINPROGRESS; \
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strerror(__err); \
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})
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* __SPA_UTILS_DEFS_H__ */
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