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vm: implement buffer_base64_encode, buffer_base64_decode #147

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Merged
MrPowerGamerBR merged 2 commits into from
May 23, 2026
+44 −1
Merged

vm: implement buffer_base64_encode, buffer_base64_decode #147

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7de4bb8
vm: implement buffer_base64_encode, buffer_base64_decode
cobaltgit May 21, 2026
a2312eb
don't make a branch of an unmerged branch!
cobaltgit May 21, 2026
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45 changes: 44 additions & 1 deletion src/vm_builtins.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6385,7 +6385,49 @@ static RValue builtin_buffer_save(MAYBE_UNUSED VMContext* ctx, RValue* args, MAY
return RValue_makeUndefined();
}

STUB_RETURN_ZERO(buffer_base64_encode)
static RValue builtin_buffer_base64_encode(MAYBE_UNUSED VMContext* ctx, RValue* args, MAYBE_UNUSED int32_t argCount) {
Runner* runner = ctx->runner;
if (3 > argCount) return RValue_makeOwnedString(safeStrdup(""));

int32_t id = RValue_toInt32(args[0]);
GmlBuffer* buf = gmlBufferGet(runner, id);
if (buf == nullptr) return RValue_makeOwnedString(safeStrdup(""));

int32_t offset = RValue_toInt32(args[1]);
size_t size = RValue_toInt32(args[2]);

int32_t maxBoundary = (buf->type == GML_BUFFER_GROW) ? buf->usedSize : buf->size;

if (offset < 0 || offset >= maxBoundary || size <= 0) {
return RValue_makeOwnedString(safeStrdup(""));
}

if (offset + size > (size_t)maxBoundary) {
size = (size_t)(maxBoundary - offset);
}

char* out = safeMalloc(BASE64_ENCODE_OUT_SIZE(size));
base64_encode((const unsigned char*) buf->data + offset, size, out);
return RValue_makeOwnedString(out);
}

static RValue builtin_buffer_base64_decode(MAYBE_UNUSED VMContext* ctx, RValue* args, MAYBE_UNUSED int32_t argCount) {
Runner* runner = ctx->runner;
if (2 > argCount) return RValue_makeOwnedString(safeStrdup(""));
char* input = RValue_toString(args[1]);
unsigned int inLen = (unsigned int) strlen(input);
size_t outLen = BASE64_DECODE_OUT_SIZE(inLen);
char* out = safeMalloc(outLen);
base64_decode((const unsigned char*) input, inLen, out);
free(input);
int32_t id = gmlBufferCreate(runner, outLen, GML_BUFFER_GROW, 1);
GmlBuffer* buf = gmlBufferGet(runner, id);
free(buf->data);
buf->data = out;
buf->size = outLen;
buf->usedSize = outLen;
return RValue_makeReal((GMLReal) id);
}

static RValue builtin_base64_encode(MAYBE_UNUSED VMContext* ctx, RValue* args, MAYBE_UNUSED int32_t argCount) {
if (1 > argCount) return RValue_makeOwnedString(safeStrdup(""));
Expand Down Expand Up @@ -11292,6 +11334,7 @@ void VMBuiltins_registerAll(VMContext* ctx) {
VM_registerBuiltin(ctx, "buffer_load", builtin_buffer_load);
VM_registerBuiltin(ctx, "buffer_save", builtin_buffer_save);
VM_registerBuiltin(ctx, "buffer_base64_encode", builtin_buffer_base64_encode);
VM_registerBuiltin(ctx, "buffer_base64_decode", builtin_buffer_base64_decode);
VM_registerBuiltin(ctx, "base64_encode", builtin_base64_encode);
VM_registerBuiltin(ctx, "base64_decode", builtin_base64_decode);
VM_registerBuiltin(ctx, "buffer_md5", builtin_buffer_md5);
Expand Down
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