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shader/p2r: Implement P2R Pr
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shader/texture: Implement AOFFI and PTP for TLD4 and TLD4S
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shader/memory: Implement LDG.U8 and unaligned U8 loads
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P2R dumps predicate or condition codes state to a register. This is
useful for unit testing.
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shader/conversion: Implement byte selector in I2F
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LDG can load single bytes instead of full integers or packs of integers.
These have the advantage of loading bytes that are not aligned to 4
bytes.
To emulate these this commit gets the byte being referenced (by doing
"address & 3" and then using that to extract the byte from the loaded
integer:
result = bitfieldExtract(loaded_integer, (address % 4) * 8, 8)
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I2F's byte selector is used to choose what bytes to convert to float.
e.g. if the input is 0xaabbccdd and the selector is ".B3" it will
convert 0xaa. The default (when it's not shown in nvdisasm) is ".B0", in
that example the default would convert 0xdd to float.
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When a image format mismatches we were inserting zeroes to the texture
itself. This was not handling cases were the mismatch uses less
coordinates than the guest shader code. Address that by resizing the
vector.
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Implement using memoryBarrier in GLSL and OpMemoryBarrier on SPIR-V.
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Implement FLO & TXD Instructions on GPU Shaders
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Some games like "Fire Emblem: Three Houses" bind 2D textures to offsets
used by instructions of 1D textures. To handle the discrepancy this
commit uses the the texture type from the binding and modifies the
emitted code IR to build a valid backend expression.
E.g.: Bound texture is 2D and instruction is 1D, the emitted IR samples
a 2D texture in the coordinate ivec2(X, 0).
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Instead of specializing shaders to separate texture buffers from 1D
textures, use the locker to deduce them while they are being decoded.
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While DEPBAR is stubbed it doesn't change anything from our end. Shading
languages handle what this instruction does implicitly. We are not
getting anything out fo this log except noise.
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These warnings don't offer meaningful information while decoding
shaders. Remove them.
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shader/node: Unpack bindless texture encoding
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Originally on the last commit I thought TLD4 acted the same as TLD4S and
didn't have a mask. It actually does have a component mask. This commit
corrects that.
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This commit fixes an issue where not all 4 results of tld4 were being
written, the color component was defaulted to red, among other things.
It also implements the bindless variant.
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Bindless textures were using u64 to pack the buffer and offset from
where they come from. Drop this in favor of separated entries in the
struct.
Remove the usage of std::set in favor of std::list (it's not std::vector
to avoid reference invalidations) for samplers and images.
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Implement Fast BRX, fix TXQ and addapt the Shader Cache for it
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Shader_Ir: Fix TLD4S from using a component mask.
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instructions that don't provide it
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Silences a few -Wshadow warnings.
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TLD4S always outputs 4 values, the previous code checked a component
mask and omitted those values that weren't part of it. This commit
corrects that and makes sure all 4 values are set.
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Ignore global memory operations instead of invoking undefined behaviour
when constant buffer tracking fails and we are blasting through asserts,
ignore the operation.
In the case of LDG this means filling the destination registers with
zeroes; for STG this means ignore the instruction as a whole.
The default behaviour is still to abort execution on failure.
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HSETP2 when used with a constant buffer parses the second operand type
as F32. This is not configurable.
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shader/image: Implement SULD and fix SUATOM
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shader_ir: Implement ICMP
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In the process remove implementation of SUATOM.MIN and SUATOM.MAX as
these require a distinction between U32 and S32. These have to be
implemented with imageCompSwap loop.
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* Implement SULD as float.
* Remove conditional declaration of GL_ARB_shader_viewport_layer_array.
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