Commit Graph

10 Commits

Author SHA1 Message Date
ReinUsesLisp
76f178ba6e shader/video: Partially implement VMNMX
Implements the common usages for VMNMX. Inputs with a different size
than 32 bits are not supported and sign mismatches aren't supported
either.

VMNMX works as follows:
It grabs Ra and Rb and applies a maximum/minimum on them (this is
defined by .MX), having in mind the input sign. This result can then be
saturated. After the intermediate result is calculated, it applies
another operation on it using Rc. These operations are merges,
accumulations or another min/max pass.

This instruction allows to implement with a more flexible approach GCN's
min3 and max3 instructions (for instance).
2020-04-12 00:34:42 -03:00
Lioncash
1f5401c89c video_core/shader: Resolve instances of variable shadowing
Silences a few -Wshadow warnings.
2019-10-23 23:00:31 -04:00
ReinUsesLisp
bf4dfb3ad4 shader: Use shared_ptr to store nodes and move initialization to file
Instead of having a vector of unique_ptr stored in a vector and
returning star pointers to this, use shared_ptr. While changing
initialization code, move it to a separate file when possible.

This is a first step to allow code analysis and node generation beyond
the ShaderIR class.
2019-06-05 20:41:52 -03:00
Lioncash
228e58d0a5 shader/decode/*: Add missing newline to files lacking them
Keeps the shader code file endings consistent.
2019-05-23 02:55:52 -03:00
ReinUsesLisp
42b75e8be8 shader_ir: Rename BasicBlock to NodeBlock
It's not always used as a basic block. Rename it for consistency.
2019-02-03 17:21:20 -03:00
ReinUsesLisp
6a6fabea58 shader_ir: Pass decoded nodes as a whole instead of per basic blocks
Some games call LDG at the top of a basic block, making the tracking
heuristic to fail. This commit lets the heuristic the decoded nodes as a
whole instead of per basic blocks.

This may lead to some false positives but allows it the heuristic to
track cases it previously couldn't.
2019-02-03 17:21:20 -03:00
ReinUsesLisp
170c8212bb shader_ir: Pass to decoder functions basic block's code 2019-01-15 17:54:53 -03:00
ReinUsesLisp
2d6c064e66 shader_decode: Improve zero flag implementation 2019-01-15 17:54:53 -03:00
ReinUsesLisp
2faad9bf23 shader_decode: Use BitfieldExtract instead of shift + and 2019-01-15 17:54:53 -03:00
ReinUsesLisp
a1b845b651 shader_decode: Implement VMAD and VSETP 2019-01-15 17:54:53 -03:00