/++
+ Machine generated D bindings for Sokol library.
+ 
+     Source header: sokol_fetch.h
+     Module: sokol.fetch
+ 
+     Do not edit manually; regenerate using gen_d.py.
+/
module sokol.fetch;

enum LogItem {
    Ok,
    Malloc_failed,
    File_path_utf8_decoding_failed,
    Send_queue_full,
    Request_channel_index_too_big,
    Request_path_is_null,
    Request_path_too_long,
    Request_callback_missing,
    Request_chunk_size_greater_buffer_size,
    Request_userdata_ptr_is_set_but_userdata_size_is_null,
    Request_userdata_ptr_is_null_but_userdata_size_is_not,
    Request_userdata_size_too_big,
    Clamping_num_channels_to_max_channels,
    Request_pool_exhausted,
}
/++
+ sfetch_logger_t
+ 
+     Used in sfetch_desc_t to provide a custom logging and error reporting
+     callback to sokol-fetch.
+/
extern(C) struct Logger {
    extern(C) void function(const(char)*, uint, uint, const(char)*, uint, const(char)*, void*) func = null;
    void* user_data = null;
}
/++
+ sfetch_range_t
+ 
+     A pointer-size pair struct to pass memory ranges into and out of sokol-fetch.
+     When initialized from a value type (array or struct) you can use the
+     SFETCH_RANGE() helper macro to build an sfetch_range_t struct.
+/
extern(C) struct Range {
    const(void)* ptr = null;
    size_t size = 0;
}
/++
+ sfetch_allocator_t
+ 
+     Used in sfetch_desc_t to provide custom memory-alloc and -free functions
+     to sokol_fetch.h. If memory management should be overridden, both the
+     alloc and free function must be provided (e.g. it's not valid to
+     override one function but not the other).
+/
extern(C) struct Allocator {
    extern(C) void* function(size_t, void*) alloc_fn = null;
    extern(C) void function(void*, void*) free_fn = null;
    void* user_data = null;
}
/++
+ configuration values for sfetch_setup()
+/
extern(C) struct Desc {
    uint max_requests = 0;
    uint num_channels = 0;
    uint num_lanes = 0;
    Allocator allocator = {};
    Logger logger = {};
}
/++
+ a request handle to identify an active fetch request, returned by sfetch_send()
+/
extern(C) struct Handle {
    uint id = 0;
}
/++
+ error codes
+/
enum Error {
    No_error,
    File_not_found,
    No_buffer,
    Buffer_too_small,
    Unexpected_eof,
    Invalid_http_status,
    Cancelled,
    Js_other,
}
/++
+ the response struct passed to the response callback
+/
extern(C) struct Response {
    Handle handle = {};
    bool dispatched = false;
    bool fetched = false;
    bool paused = false;
    bool finished = false;
    bool failed = false;
    bool cancelled = false;
    Error error_code = Error.No_error;
    uint channel = 0;
    uint lane = 0;
    const(char)* path = null;
    void* user_data = null;
    uint data_offset = 0;
    Range data = {};
    Range buffer = {};
}
/++
+ request parameters passed to sfetch_send()
+/
extern(C) struct Request {
    uint channel = 0;
    const(char)* path = null;
    extern(C) void function(const Response*) callback = null;
    uint chunk_size = 0;
    Range buffer = {};
    Range user_data = {};
}
/++
+ setup sokol-fetch (can be called on multiple threads)
+/
extern(C) void sfetch_setup(const Desc* desc) @system @nogc nothrow pure;
void setup(scope ref Desc desc) @trusted @nogc nothrow pure {
    sfetch_setup(&desc);
}
/++
+ discard a sokol-fetch context
+/
extern(C) void sfetch_shutdown() @system @nogc nothrow pure;
void shutdown() @trusted @nogc nothrow pure {
    sfetch_shutdown();
}
/++
+ return true if sokol-fetch has been setup
+/
extern(C) bool sfetch_valid() @system @nogc nothrow pure;
bool valid() @trusted @nogc nothrow pure {
    return sfetch_valid();
}
/++
+ get the desc struct that was passed to sfetch_setup()
+/
extern(C) Desc sfetch_desc() @system @nogc nothrow pure;
Desc desc() @trusted @nogc nothrow pure {
    return sfetch_desc();
}
/++
+ return the max userdata size in number of bytes (SFETCH_MAX_USERDATA_UINT64 * sizeof(uint64_t))
+/
extern(C) int sfetch_max_userdata_bytes() @system @nogc nothrow pure;
int maxUserdataBytes() @trusted @nogc nothrow pure {
    return sfetch_max_userdata_bytes();
}
/++
+ return the value of the SFETCH_MAX_PATH implementation config value
+/
extern(C) int sfetch_max_path() @system @nogc nothrow pure;
int maxPath() @trusted @nogc nothrow pure {
    return sfetch_max_path();
}
/++
+ send a fetch-request, get handle to request back
+/
extern(C) Handle sfetch_send(const Request* request) @system @nogc nothrow pure;
Handle send(scope ref Request request) @trusted @nogc nothrow pure {
    return sfetch_send(&request);
}
/++
+ return true if a handle is valid *and* the request is alive
+/
extern(C) bool sfetch_handle_valid(Handle h) @system @nogc nothrow pure;
bool handleValid(Handle h) @trusted @nogc nothrow pure {
    return sfetch_handle_valid(h);
}
/++
+ do per-frame work, moves requests into and out of IO threads, and invokes response-callbacks
+/
extern(C) void sfetch_dowork() @system @nogc nothrow pure;
void dowork() @trusted @nogc nothrow pure {
    sfetch_dowork();
}
/++
+ bind a data buffer to a request (request must not currently have a buffer bound, must be called from response callback
+/
extern(C) void sfetch_bind_buffer(Handle h, Range buffer) @system @nogc nothrow pure;
void bindBuffer(Handle h, Range buffer) @trusted @nogc nothrow pure {
    sfetch_bind_buffer(h, buffer);
}
/++
+ clear the 'buffer binding' of a request, returns previous buffer pointer (can be 0), must be called from response callback
+/
extern(C) void* sfetch_unbind_buffer(Handle h) @system @nogc nothrow pure;
void* unbindBuffer(Handle h) @trusted @nogc nothrow pure {
    return sfetch_unbind_buffer(h);
}
/++
+ cancel a request that's in flight (will call response callback with .cancelled + .finished)
+/
extern(C) void sfetch_cancel(Handle h) @system @nogc nothrow pure;
void cancel(Handle h) @trusted @nogc nothrow pure {
    sfetch_cancel(h);
}
/++
+ pause a request (will call response callback each frame with .paused)
+/
extern(C) void sfetch_pause(Handle h) @system @nogc nothrow pure;
void pause(Handle h) @trusted @nogc nothrow pure {
    sfetch_pause(h);
}
/++
+ continue a paused request
+/
extern(C) void sfetch_continue(Handle h) @system @nogc nothrow pure;
void continueFetching(Handle h) @trusted @nogc nothrow pure {
    sfetch_continue(h);
}