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[mpp_buffer]: Add offset property

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1. Add offset set / get function to MppBuffer
2. Add U32 register address converstion function.

Change-Id: Id297b7a05e47d4e249f5e33c1924a0539729c808
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
This commit is contained in:
Herman Chen
2020-03-19 19:46:31 +08:00
parent ad0d2179a9
commit 6a76bfc3f5
4 changed files with 58 additions and 0 deletions
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24
mpp/base/mpp_buffer_impl.cpp
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@@ -446,6 +446,30 @@ MppBufferImpl *mpp_buffer_get_unused(MppBufferGroupImpl *p, size_t size)
return buffer;
}
RK_U32 mpp_buffer_to_addr(MppBuffer buffer, size_t offset)
{
MppBufferImpl *impl = (MppBufferImpl *)buffer;
if (NULL == impl) {
mpp_err_f("NULL buffer convert to zero address\n");
return 0;
}
if (impl->info.fd >= (1 << 10)) {
mpp_err_f("buffer fd %d is too large\n");
return 0;
}
if (impl->offset + offset >= SZ_4M) {
mpp_err_f("offset %d + %d is larger than 4M use extra info to send offset\n");
return 0;
}
RK_U32 addr = impl->info.fd + ((impl->offset + offset) << 10);
return addr;
}
MPP_RET mpp_buffer_group_init(MppBufferGroupImpl **group, const char *tag, const char *caller,
MppBufferMode mode, MppBufferType type)
{