On devices which have hardware support for dual source blending
but not logic ops, this lets us skip performing the framebuffer
fetch in situations where the game isn't actually using logic ops.
I.e. flush pokes before running an EFB peek, if the cache tile isn't present. If the cache tile is present, then EFB pokes should have been written to the cache tile and thus don't need to be flushed.
directly_mapped_vars was added in #69 (4129b30494757a79daf8a07e6a07ea937ba1c94b), but for some reason FIFO_BP_LO/HI were split out from it in in #885 (65af90669bd5f9e02bbaa994d51d5c83d147b868). As far as I can tell, this code (and the code that existed at the time) is identical, so there's no reason to have it handled separately.
Large amounts of logging can have an impact on performance, so moving the ones that have been determined to not matter to the warn level gives a way to hide those messages without hiding actual errors (and also gives a fast visual way of distinguishing between ignored and non-ignored ones due to the different colors).
It doesn't make sense for alpha to add the bias ONLY when dividing by 2, while color doesn't apply the bias for divide by 2 only; hardware testing indicates that alpha should have the bias.
This fixes the menus in Mario Kart Wii (https://bugs.dolphin-emu.org/issues/11909) but reintroduces the white rectangle in Fortune Street.
This reverts commit 5aaa5141ed76acc3fffc70561a6b6e7fe3b9b470 (and several other matching changes elsewhere).
Turning off primitive restart increases performance a lot on
Adreno for some reason. We're talking numbers like 50%-100% faster
in situations which are bottlenecked by rendering.
At least in GLSL, after calling EmitVertex() the value of all 'out' variables (including gl_Layer and ps) becomes undefined. On OpenGL it seems like they were unchanged, but on Vulkan they became 0, resulting in bad rendering.
Fixes https://bugs.dolphin-emu.org/issues/12001
At least in MSVC (which is not restricted from targetting C++20), these can be resolved to either std::format_to or fmt::format_to (though I'm not sure why the std one is available). We want the latter.
This syntax is allowed by GLSL, but HLSL doesn't allow it. This meant that games using R8 comparisons in equal mode would produce shaders that failed to compile. Super Mario Galaxy's water levels were affected by this.
