* Removed the Cancel button since the code doesn't react to it anyway.
* Only show a window title, not the help icon (?), and disable the close button
* Set the title to "Dolphin" instead of repeating the label text
Prior to this commit, the emitter would unconditionally emit a 10-byte
instruction known as MOVABS when loading a 64-bit immediate to a
register.
0: 48 b8 ef be ad de 00 movabs rax,0xdeadbeef
7: 00 00 00
With this change, it will instead rely on the fact that on x64 writes to
32-bit registers are automatically zero extended to 64-bits, allowing
us to emit a 5 or 6-bytes instruction with the same effect for certain
immediates.
0: b8 ef be ad de mov eax,0xdeadbeef
This fixes severe image flickering in some cutscenes of Twin Snakes. The game appears to sometimes load a previously made XFB copy as a texture before it is actually rendered to the screen, which we took as an invitation to invalidate the XFB copy.
Prior to this commit, the emitter would unconditionally emit a 10-byte
instruction known as MOVABS when loading a 64-bit immediate to a
register.
0: 48 b8 ef be ad de ff movabs rax,0xffffffffdeadbeef
7: ff ff ff
With this change, it will instead emit a 7-byte instruction when it is
possible to express the 64-bit immediate using a signed 32-bit value.
0: 48 c7 c0 ef be ad de mov rax,0xffffffffdeadbeef
If, for whatever reason, the XFB has to be loaded from console memory, it's possible that the texture is returned at native resolution instead of EFB-scaled resolution. In this case, our xfb_rect.right adjustment must also happen at native resolution instead of scaled resolution.
The header of a Wii disc can be read from two places: The
unencrypted area at the beginning of the disc, or the beginning of
the game partition. The two copies are usually identical (except
for 0x60 and 0x61), but there are exceptions. For most of Dolphin's
history, we have been reading from the header inside the game
partition when getting metadata. This was however not the case
starting with 4.0-4901 and ending with 5.0-3762. This commit once
again makes Dolphin read metadata from the unencrypted header,
because of the following reasons that I recently was informed about:
- The "pink fish" disc has the game ID 410E01 in the unencrypted
header but the placeholder game ID RELSAB in the partition header.
- The revisions of some games differ between the two headers,
with the unencrypted one making more sense.
(See https://bugs.dolphin-emu.org/issues/11387)
For better or worse, this also means that sloppily hacked games where
only the game ID in the unencrypted header has been changed now will
use that modified game ID. And unlike with the partition header,
there is no signing or hashing that can tell us whether the
unencrypted header has been modified by someone other than Nintendo.
Dolphin has traditionally treated the SI IO buffer (128 bytes) as a set of
32 little endian u32s. This works out fine if you only ever read/write
using aligned 32bit accesses. Different sized accesses or misaligned reads
will mess it up. Byte swapping reads/writes will fix this up, but all the
SI devices that use the SI IO buffer need to be adjusted.
