From 469fa47e0646d8f2ca3237dede8a04568039c7c6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pedro=20J=2E=20Est=C3=A9banez?= Date: Tue, 26 Mar 2019 18:51:13 +0100 Subject: Make all file access 64-bit (uint64_t) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This changes the types of a big number of variables. General rules: - Using `uint64_t` in general. We also considered `int64_t` but eventually settled on keeping it unsigned, which is also closer to what one would expect with `size_t`/`off_t`. - We only keep `int64_t` for `seek_end` (takes a negative offset from the end) and for the `Variant` bindings, since `Variant::INT` is `int64_t`. This means we only need to guard against passing negative values in `core_bind.cpp`. - Using `uint32_t` integers for concepts not needing such a huge range, like pages, blocks, etc. In addition: - Improve usage of integer types in some related places; namely, `DirAccess`, core binds. Note: - On Windows, `_ftelli64` reports invalid values when using 32-bit MinGW with version < 8.0. This was an upstream bug fixed in 8.0. It breaks support for big files on 32-bit Windows builds made with that toolchain. We might add a workaround. Fixes #44363. Fixes godotengine/godot-proposals#400. Co-authored-by: Rémi Verschelde --- .../videodecoder/video_stream_gdnative.cpp | 32 ++++++++-------------- 1 file changed, 11 insertions(+), 21 deletions(-) (limited to 'modules/gdnative/videodecoder') diff --git a/modules/gdnative/videodecoder/video_stream_gdnative.cpp b/modules/gdnative/videodecoder/video_stream_gdnative.cpp index f2fb0a2fdc..1b7838846f 100644 --- a/modules/gdnative/videodecoder/video_stream_gdnative.cpp +++ b/modules/gdnative/videodecoder/video_stream_gdnative.cpp @@ -47,11 +47,7 @@ godot_int GDAPI godot_videodecoder_file_read(void *ptr, uint8_t *buf, int buf_si // if file exists if (file) { - long bytes_read = file->get_buffer(buf, buf_size); - // No bytes to read => EOF - if (bytes_read == 0) { - return 0; - } + int64_t bytes_read = file->get_buffer(buf, buf_size); return bytes_read; } return -1; @@ -62,41 +58,35 @@ int64_t GDAPI godot_videodecoder_file_seek(void *ptr, int64_t pos, int whence) { FileAccess *file = reinterpret_cast(ptr); if (file) { - size_t len = file->get_len(); + int64_t len = file->get_len(); switch (whence) { case SEEK_SET: { - // Just for explicitness - size_t new_pos = static_cast(pos); - if (new_pos > len) { + if (pos > len) { return -1; } - file->seek(new_pos); - pos = static_cast(file->get_position()); - return pos; + file->seek(pos); + return file->get_position(); } break; case SEEK_CUR: { // Just in case it doesn't exist - if (pos < 0 && (size_t)-pos > file->get_position()) { + if (pos < 0 && -pos > (int64_t)file->get_position()) { return -1; } - pos = pos + static_cast(file->get_position()); - file->seek(pos); - pos = static_cast(file->get_position()); - return pos; + file->seek(file->get_position() + pos); + return file->get_position(); } break; case SEEK_END: { // Just in case something goes wrong - if ((size_t)-pos > len) { + if (-pos > len) { return -1; } file->seek_end(pos); - pos = static_cast(file->get_position()); - return pos; + return file->get_position(); } break; default: { // Only 4 possible options, hence default = AVSEEK_SIZE // Asks to return the length of file - return static_cast(len); + return len; } break; } } -- cgit v1.2.3