mirror of
https://github.com/janet-lang/janet
synced 2024-11-29 03:19:54 +00:00
Added typed array C API
This commit is contained in:
J.-F. Cap
parent
0eae75a5c2
commit
4147c0ce1f
@ -40,19 +40,6 @@ typedef int64_t ta_int64_t;
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typedef float ta_float32_t;
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typedef double ta_float64_t;
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typedef enum TA_Type {
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TA_TYPE_uint8,
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TA_TYPE_int8,
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TA_TYPE_uint16,
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TA_TYPE_int16,
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TA_TYPE_uint32,
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TA_TYPE_int32,
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TA_TYPE_uint64,
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TA_TYPE_int64,
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TA_TYPE_float32,
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TA_TYPE_float64,
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} TA_Type;
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static char *ta_type_names[] = {
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"uint8",
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@ -65,6 +52,7 @@ static char *ta_type_names[] = {
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"int64",
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"float32",
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"float64",
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"any",
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};
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static size_t ta_type_sizes[] = {
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@ -79,11 +67,11 @@ static size_t ta_type_sizes[] = {
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sizeof(ta_float32_t),
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sizeof(ta_float64_t),
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};
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#define TA_COUNT_TYPES (TA_TYPE_float64 + 1)
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#define TA_COUNT_TYPES (JANET_TARRAY_TYPE_float64 + 1)
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#define TA_ATOM_MAXSIZE 8
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#define TA_FLAG_BIG_ENDIAN 1
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static TA_Type get_ta_type_by_name(const uint8_t *name) {
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static JanetTArrayType get_ta_type_by_name(const uint8_t *name) {
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size_t nt = sizeof(ta_type_names) / sizeof(char *);
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for (size_t i = 0; i < nt; i++) {
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if (!janet_cstrcmp(name, ta_type_names[i]))
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@ -95,13 +83,9 @@ static TA_Type get_ta_type_by_name(const uint8_t *name) {
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typedef struct {
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uint8_t *data;
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size_t size;
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uint32_t flags;
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} TA_Buffer;
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static TA_Buffer *ta_buffer_init(TA_Buffer *buf, size_t size) {
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static JanetTArrayBuffer *ta_buffer_init(JanetTArrayBuffer *buf, size_t size) {
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buf->data = (uint8_t *)calloc(size, sizeof(uint8_t));
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buf->size = size;
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#ifdef JANET_BIG_ENDIAN
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@ -114,20 +98,20 @@ static TA_Buffer *ta_buffer_init(TA_Buffer *buf, size_t size) {
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static int ta_buffer_gc(void *p, size_t s) {
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(void) s;
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TA_Buffer *buf = (TA_Buffer *)p;
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JanetTArrayBuffer *buf = (JanetTArrayBuffer *)p;
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free(buf->data);
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return 0;
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}
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static void ta_buffer_marshal(void *p, JanetMarshalContext *ctx) {
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TA_Buffer *buf = (TA_Buffer *)p;
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JanetTArrayBuffer *buf = (JanetTArrayBuffer *)p;
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janet_marshal_int(ctx, buf->size);
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janet_marshal_int(ctx, buf->flags);
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janet_marshal_bytes(ctx, buf->data, buf->size);
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}
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static void ta_buffer_unmarshal(void *p, JanetMarshalContext *ctx) {
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TA_Buffer *buf = (TA_Buffer *)p;
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JanetTArrayBuffer *buf = (JanetTArrayBuffer *)p;
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uint32_t size;
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janet_unmarshal_uint(ctx, &size);
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ta_buffer_init(buf, size); // warning if indianess <> platform ??
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@ -146,24 +130,18 @@ static const JanetAbstractType ta_buffer_type = {
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ta_buffer_unmarshal,
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};
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typedef struct {
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TA_Buffer *buffer;
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void *data; /* pointer inside buffer->data */
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size_t size;
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size_t stride;
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TA_Type type;
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} TA_View;
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static int ta_mark(void *p, size_t s) {
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(void) s;
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TA_View *view = (TA_View *)p;
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JanetTArrayView *view = (JanetTArrayView *)p;
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janet_mark(janet_wrap_abstract(view->buffer));
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return 0;
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}
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static void ta_view_marshal(void *p, JanetMarshalContext *ctx) {
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TA_View *view = (TA_View *)p;
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JanetTArrayView *view = (JanetTArrayView *)p;
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size_t offset = (view->buffer->data - (uint8_t *)(view->data));
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janet_marshal_int(ctx, view->size);
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janet_marshal_int(ctx, view->stride);
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@ -174,7 +152,7 @@ static void ta_view_marshal(void *p, JanetMarshalContext *ctx) {
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static void ta_view_unmarshal(void *p, JanetMarshalContext *ctx) {
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TA_View *view = (TA_View *)p;
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JanetTArrayView *view = (JanetTArrayView *)p;
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size_t offset;
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Janet buffer;
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janet_unmarshal_size(ctx, &(view->size));
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@ -182,7 +160,7 @@ static void ta_view_unmarshal(void *p, JanetMarshalContext *ctx) {
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janet_unmarshal_uint(ctx, &(view->type));
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janet_unmarshal_size(ctx, &offset);
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janet_unmarshal_janet(ctx, &buffer);
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view->buffer = (TA_Buffer *)janet_unwrap_abstract(buffer);
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view->buffer = (JanetTArrayBuffer *)janet_unwrap_abstract(buffer);
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view->data = view->buffer->data + offset;
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}
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@ -192,11 +170,11 @@ static void ta_view_unmarshal(void *p, JanetMarshalContext *ctx) {
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#define DEFINE_VIEW_TYPE(thetype) \
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typedef struct { \
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TA_Buffer * buffer; \
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JanetTArrayBuffer * buffer; \
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ta_##thetype##_t * data; \
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size_t size; \
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size_t stride; \
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TA_Type type; \
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JanetTArrayType type; \
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} TA_View_##thetype ;
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@ -232,11 +210,11 @@ void ta_put_##type(void *p, Janet key,Janet value) { \
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}
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#define DEFINE_VIEW_INITIALIZER(thetype) \
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static TA_View * ta_init_##thetype(TA_View * view,TA_Buffer * buf,size_t size,size_t offset,size_t stride) { \
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static JanetTArrayView * ta_init_##thetype(JanetTArrayView * view,JanetTArrayBuffer * buf,size_t size,size_t offset,size_t stride) { \
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TA_View_##thetype * tview=(TA_View_##thetype *) view; \
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size_t buf_size=offset+(size-1)*(sizeof(ta_##thetype##_t))*stride+1; \
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if (buf==NULL) { \
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buf=(TA_Buffer *)janet_abstract(&ta_buffer_type,sizeof(TA_Buffer)); \
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buf=(JanetTArrayBuffer *)janet_abstract(&ta_buffer_type,sizeof(JanetTArrayBuffer)); \
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ta_buffer_init(buf,buf_size); \
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} \
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if (buf->size<buf_size) { \
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@ -246,7 +224,7 @@ void ta_put_##type(void *p, Janet key,Janet value) { \
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tview->stride=stride; \
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tview->size=size; \
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tview->data=(ta_##thetype##_t *)(buf->data+offset); \
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tview->type=TA_TYPE_##thetype; \
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tview->type=JANET_TARRAY_TYPE_##thetype; \
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return view; \
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};
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@ -303,7 +281,7 @@ static const JanetAbstractType ta_array_types[] = {
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static int is_ta_type(Janet x) {
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static int is_ta_anytype(Janet x) {
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if (janet_checktype(x, JANET_ABSTRACT)) {
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const JanetAbstractType *at = janet_abstract_type(janet_unwrap_abstract(x));
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for (size_t i = 0; i < TA_COUNT_TYPES; i++) {
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@ -313,34 +291,22 @@ static int is_ta_type(Janet x) {
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return 0;
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}
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#undef VIEW_ABSTRACT_INFO_INIT
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#define CASE_TYPE_INITIALIZE(type) case TA_TYPE_##type : ta_init_##type(view,buffer,size,offset,stride); break
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static Janet cfun_typed_array_new(int32_t argc, Janet *argv) {
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janet_arity(argc, 2, 5);
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size_t offset = 0;
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size_t stride = 1;
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TA_Buffer *buffer = NULL;
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const uint8_t *keyw = janet_getkeyword(argv, 0);
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TA_Type type = get_ta_type_by_name(keyw);
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size_t size = (size_t)janet_getinteger(argv, 1);
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if (argc > 2)
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stride = (size_t)janet_getinteger(argv, 2);
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if (argc > 3)
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offset = (size_t)janet_getinteger(argv, 3);
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if (argc > 4) {
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if (is_ta_type(argv[4])) {
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TA_View *view = (TA_View *)janet_unwrap_abstract(argv[4]);
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offset = (view->buffer->data - (uint8_t *)(view->data)) + offset * ta_type_sizes[view->type];
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stride *= view->stride;
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buffer = view->buffer;
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} else {
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buffer = (TA_Buffer *)janet_getabstract(argv, 4, &ta_buffer_type);
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static int is_ta_type(Janet x, JanetTArrayType type) {
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return (janet_checktype(x, JANET_ABSTRACT) && (type < TA_COUNT_TYPES) &&
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(janet_abstract_type(janet_unwrap_abstract(x))== &ta_array_types[type])) ? 1 : 0;
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}
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#define CASE_TYPE_INITIALIZE(type) case JANET_TARRAY_TYPE_##type : ta_init_##type(view,buffer,size,offset,stride); break
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JanetTArrayBuffer * janet_tarray_buffer(size_t size) {
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JanetTArrayBuffer *buf = (JanetTArrayBuffer *)janet_abstract(&ta_buffer_type, sizeof(JanetTArrayBuffer));
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ta_buffer_init(buf, size);
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return buf;
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}
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TA_View *view = janet_abstract(&ta_array_types[type], sizeof(TA_View));
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JanetTArrayView * janet_tarray_view(JanetTArrayType type,size_t size,size_t stride,size_t offset,JanetTArrayBuffer *buffer) {
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JanetTArrayView *view = janet_abstract(&ta_array_types[type], sizeof(JanetTArrayView));
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switch (type) {
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CASE_TYPE_INITIALIZE(uint8);
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CASE_TYPE_INITIALIZE(int8);
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@ -352,39 +318,93 @@ static Janet cfun_typed_array_new(int32_t argc, Janet *argv) {
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CASE_TYPE_INITIALIZE(int64);
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CASE_TYPE_INITIALIZE(float32);
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CASE_TYPE_INITIALIZE(float64);
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default : janet_panic("bad typed array type");
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}
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return janet_wrap_abstract(view);
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return view;
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}
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#undef CASE_TYPE_INITIALIZE
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JanetTArrayBuffer *janet_gettarray_buffer(const Janet *argv, int32_t n) {
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return (JanetTArrayBuffer *)janet_getabstract(argv, n, &ta_buffer_type);
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}
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int janet_is_tarray_view(Janet x,JanetTArrayType type) {
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return (type==JANET_TARRAY_TYPE_any) ? is_ta_anytype(x) : is_ta_type(x,type);
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}
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int janet_tarray_type_size(JanetTArrayType type) {
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return (type<TA_COUNT_TYPES)? ta_type_sizes[type] : 0 ;
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}
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JanetTArrayView * janet_gettarray_view(const Janet *argv, int32_t n,JanetTArrayType type) {
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if (janet_is_tarray_view(argv[n],type)) {
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return (JanetTArrayView *)janet_unwrap_abstract(argv[n]);
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} else {
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janet_panicf("bad slot #%d, expected typed array of type %s, got %v",
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n, (type <= JANET_TARRAY_TYPE_any) ? ta_type_names[type] : "?" , argv[n]);
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return NULL;
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}
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}
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static Janet cfun_typed_array_new(int32_t argc, Janet *argv) {
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janet_arity(argc, 2, 5);
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size_t offset = 0;
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size_t stride = 1;
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JanetTArrayBuffer *buffer = NULL;
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const uint8_t *keyw = janet_getkeyword(argv, 0);
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JanetTArrayType type = get_ta_type_by_name(keyw);
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size_t size = (size_t)janet_getinteger(argv, 1);
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if (argc > 2)
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stride = (size_t)janet_getinteger(argv, 2);
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if (argc > 3)
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offset = (size_t)janet_getinteger(argv, 3);
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if (argc > 4) {
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if (is_ta_anytype(argv[4])) {
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JanetTArrayView *view = (JanetTArrayView *)janet_unwrap_abstract(argv[4]);
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offset = (view->buffer->data - (uint8_t *)(view->data)) + offset * ta_type_sizes[view->type];
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stride *= view->stride;
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buffer = view->buffer;
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} else {
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buffer = (JanetTArrayBuffer *)janet_getabstract(argv, 4, &ta_buffer_type);
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}
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}
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JanetTArrayView * view =janet_tarray_view(type,size,stride,offset,buffer);
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return janet_wrap_abstract(view);
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}
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static Janet cfun_typed_array_buffer(int32_t argc, Janet *argv) {
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janet_fixarity(argc, 1);
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if (is_ta_type(argv[0])) {
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TA_View *view = (TA_View *)janet_unwrap_abstract(argv[0]);
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if (is_ta_anytype(argv[0])) {
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JanetTArrayView *view = (JanetTArrayView *)janet_unwrap_abstract(argv[0]);
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return janet_wrap_abstract(view->buffer);
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}
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size_t size = (size_t)janet_getinteger(argv, 0);
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TA_Buffer *buf = (TA_Buffer *)janet_abstract(&ta_buffer_type, sizeof(TA_Buffer));
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ta_buffer_init(buf, size);
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JanetTArrayBuffer *buf = janet_tarray_buffer(size);
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return janet_wrap_abstract(buf);
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}
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static Janet cfun_typed_array_size(int32_t argc, Janet *argv) {
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janet_fixarity(argc, 1);
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if (is_ta_type(argv[0])) {
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TA_View *view = (TA_View *)janet_unwrap_abstract(argv[0]);
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if (is_ta_anytype(argv[0])) {
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JanetTArrayView *view = (JanetTArrayView *)janet_unwrap_abstract(argv[0]);
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return janet_wrap_number(view->size);
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}
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TA_Buffer *buf = (TA_Buffer *)janet_getabstract(argv, 0, &ta_buffer_type);
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JanetTArrayBuffer *buf = (JanetTArrayBuffer *)janet_getabstract(argv, 0, &ta_buffer_type);
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return janet_wrap_number(buf->size);
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}
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static Janet cfun_typed_array_properties(int32_t argc, Janet *argv) {
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janet_fixarity(argc, 1);
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if (!is_ta_type(argv[0]))
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if (!is_ta_anytype(argv[0]))
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janet_panic("expected typed array");
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TA_View *view = (TA_View *)janet_unwrap_abstract(argv[0]);
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JanetTArrayView *view = (JanetTArrayView *)janet_unwrap_abstract(argv[0]);
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JanetKV *props = janet_struct_begin(6);
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janet_struct_put(props, janet_ckeywordv("size"), janet_wrap_number(view->size));
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janet_struct_put(props, janet_ckeywordv("byte-offset"), janet_wrap_number((uint8_t *)(view->data) - view->buffer->data));
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@ -412,10 +432,9 @@ static Janet cfun_abstract_properties(int32_t argc, Janet *argv) {
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static Janet cfun_typed_array_copy_bytes(int32_t argc, Janet *argv) {
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janet_arity(argc, 4, 5);
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if (is_ta_type(argv[0]) && is_ta_type(argv[2])) {
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TA_View *src = (TA_View *)janet_unwrap_abstract(argv[0]);
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JanetTArrayView *src = janet_gettarray_view(argv,0,JANET_TARRAY_TYPE_any);
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size_t index_src = (size_t)janet_getinteger(argv, 1);
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TA_View *dst = (TA_View *)janet_unwrap_abstract(argv[2]);
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JanetTArrayView *dst = janet_gettarray_view(argv,2,JANET_TARRAY_TYPE_any);
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size_t index_dst = (size_t)janet_getinteger(argv, 3);
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size_t count = (argc == 5) ? (size_t)janet_getinteger(argv, 4) : 1;
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size_t src_atom_size = ta_type_sizes[src->type];
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@ -432,20 +451,17 @@ static Janet cfun_typed_array_copy_bytes(int32_t argc, Janet *argv) {
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pd += step_dst;
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ps += step_src;
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}
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} else
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janet_panic("typed array copy out of bound");
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} else {
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janet_panic("expected typed array");
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janet_panic("typed array copy out of bound");
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}
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return janet_wrap_nil();
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}
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static Janet cfun_typed_array_swap_bytes(int32_t argc, Janet *argv) {
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janet_arity(argc, 4, 5);
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if (is_ta_type(argv[0]) && is_ta_type(argv[2])) {
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TA_View *src = (TA_View *)janet_unwrap_abstract(argv[0]);
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JanetTArrayView *src = janet_gettarray_view(argv,0,JANET_TARRAY_TYPE_any);
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size_t index_src = (size_t)janet_getinteger(argv, 1);
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TA_View *dst = (TA_View *)janet_unwrap_abstract(argv[2]);
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JanetTArrayView *dst = janet_gettarray_view(argv,2,JANET_TARRAY_TYPE_any);
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size_t index_dst = (size_t)janet_getinteger(argv, 3);
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size_t count = (argc == 5) ? (size_t)janet_getinteger(argv, 4) : 1;
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size_t src_atom_size = ta_type_sizes[src->type];
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@ -465,10 +481,8 @@ static Janet cfun_typed_array_swap_bytes(int32_t argc, Janet *argv) {
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pd += step_dst;
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ps += step_src;
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}
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} else
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janet_panic("typed array swap out of bound");
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} else {
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janet_panic("expected typed array");
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janet_panic("typed array swap out of bound");
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}
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return janet_wrap_nil();
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}
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@ -1251,7 +1251,7 @@ JANET_API int32_t janet_gethalfrange(const Janet *argv, int32_t n, int32_t lengt
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JANET_API int32_t janet_getargindex(const Janet *argv, int32_t n, int32_t length, const char *which);
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/* Marshal API */
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||||
JANET_API void janet_marshal_int(JanetMarshalContext *ctx, int32_t value);
|
||||
JANET_API void janet_marshal_byte(JanetMarshalContext *ctx, uint8_t value);
|
||||
JANET_API void janet_marshal_bytes(JanetMarshalContext *ctx, const uint8_t *bytes, int32_t len);
|
||||
@ -1264,15 +1264,47 @@ JANET_API void janet_unmarshal_byte(JanetMarshalContext *ctx, uint8_t *b);
|
||||
JANET_API void janet_unmarshal_bytes(JanetMarshalContext *ctx, uint8_t *dest, int32_t len);
|
||||
JANET_API void janet_unmarshal_janet(JanetMarshalContext *ctx, Janet *out);
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
JANET_API void janet_register_abstract_type(const JanetAbstractType *at);
|
||||
|
||||
JANET_API const JanetAbstractType *janet_get_abstract_type(Janet key);
|
||||
|
||||
#ifdef JANET_TYPED_ARRAY
|
||||
|
||||
typedef enum {
|
||||
JANET_TARRAY_TYPE_uint8,
|
||||
JANET_TARRAY_TYPE_int8,
|
||||
JANET_TARRAY_TYPE_uint16,
|
||||
JANET_TARRAY_TYPE_int16,
|
||||
JANET_TARRAY_TYPE_uint32,
|
||||
JANET_TARRAY_TYPE_int32,
|
||||
JANET_TARRAY_TYPE_uint64,
|
||||
JANET_TARRAY_TYPE_int64,
|
||||
JANET_TARRAY_TYPE_float32,
|
||||
JANET_TARRAY_TYPE_float64,
|
||||
JANET_TARRAY_TYPE_any,
|
||||
} JanetTArrayType;
|
||||
|
||||
typedef struct {
|
||||
uint8_t *data;
|
||||
size_t size;
|
||||
uint32_t flags;
|
||||
} JanetTArrayBuffer;
|
||||
|
||||
typedef struct {
|
||||
JanetTArrayBuffer *buffer;
|
||||
void *data; /* pointer inside buffer->data */
|
||||
size_t size;
|
||||
size_t stride;
|
||||
JanetTArrayType type;
|
||||
} JanetTArrayView;
|
||||
|
||||
JANET_API JanetTArrayBuffer * janet_tarray_buffer(size_t size);
|
||||
JANET_API JanetTArrayView * janet_tarray_view(JanetTArrayType type,size_t size,size_t stride,size_t offset,JanetTArrayBuffer *buffer);
|
||||
JANET_API int janet_is_tarray_view(Janet x,JanetTArrayType type);
|
||||
JANET_API int janet_tarray_type_size(JanetTArrayType type);
|
||||
JANET_API JanetTArrayBuffer * janet_gettarray_buffer(const Janet *argv, int32_t n);
|
||||
JANET_API JanetTArrayView * janet_gettarray_view(const Janet *argv, int32_t n,JanetTArrayType type);
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
/***** END SECTION MAIN *****/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user