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43 lines
613 B
C++
43 lines
613 B
C++
/*
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** a generic input stream interface
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** See Copyright Notice in lua.h
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*/
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#include "engines/grim/lua/lzio.h"
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#include "common/file.h"
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namespace Grim {
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int32 zgeteoz(ZIO *) {
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return EOZ;
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}
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ZIO *zopen(ZIO *z, const char *b, int32 size, const char *name) {
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if (!b)
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return nullptr;
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z->n = size;
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z->p = (const byte *)b;
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z->name = name;
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return z;
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}
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int32 zread (ZIO *z, void *b, int32 n) {
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while (n) {
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int32 m;
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if (z->n == 0) {
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return n;
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}
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m = (n <= z->n) ? n : z->n;
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memcpy(b, z->p, m);
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z->n -= m;
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z->p += m;
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b = (char *)b + m;
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n -= m;
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}
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return 0;
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}
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} // end of namespace Grim
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