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tests/d3dbc: Add some tests for dp2add instructions.

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These are adapted from Wine's dp2add_ps_test() d3d9 test by Jason Green.
This commit is contained in:
Henri Verbeet
2025-12-04 22:32:49 +01:00
parent 5348427c62
commit 79ddfedbde
Notes: Henri Verbeet 2025-12-08 17:49:28 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1859
2 changed files with 36 additions and 0 deletions
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35
tests/d3dbc/dp2add.shader_test Normal file
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[require]
shader model = 2.0
[pixel shader d3dbc-hex]
ffff0200 % ps_2_0
05000051 a00f0000 3f000000 3f000000 3f800000 00000000 % def c0, 0.5, 0.5, 1.0, 0.0
02000001 800f0000 a0e40000 % mov r0, c0
0400005a 80070000 80000000 80000000 80ff0000 % dp2add r0.xyz, r0, r0, r0.w
02000001 80080000 a0aa0000 % mov r0.w, c0.z
02000001 800f0800 80e40000 % mov oC0, r0
0000ffff % end
[test]
todo draw quad
probe (320, 240) f32(.5, .5, .5, 1.0)
% Test the _sat modifier.
%
% dp2add: (-0.5 * -0.5) + (-0.5 * -0.5) + 2.0 = 2.5
% _sat: -> 1.0
% add: (1.0 + -0.5) = 0.5
%
[pixel shader d3dbc-hex]
ffff0200 % ps_2_0
05000051 a00f0000 bf000000 bf000000 3f800000 40000000 % def c0, -0.5, -0.5, 1.0, 2.0
02000001 800f0000 a0e40000 % mov r0, c0
0400005a 80170000 80000000 80000000 80ff0000 % dp2add_sat r0.xyz, r0, r0, r0.w
03000002 80070000 80e40000 a0000000 % add r0.xyz, r0, c0.x
02000001 80080000 a0aa0000 % mov r0.w, c0.z
02000001 800f0800 80e40000 % mov oC0, r0
0000ffff % end
[test]
todo draw quad
probe (320, 240) f32(.5, .5, .5, 1.0)