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3431c006ae
In the projected case, (1.2, 0.5) divided by 2.0 results in (0.6, 0.25) as effective coordinates. The 0.25 y-coordinate is well within the second row of texels; that's fine. On the other hand, the 0.6 x-coordinate falls right between the third and fourth column of texels. The test expects the fourth column to be selected, but that's very fragile: neither 1.2 nor 0.6 can be exactly represented as a 32-bit floating-point value, and it only takes a single ulp to push things to the other side of the edge.
63 lines
1.6 KiB
Plaintext
63 lines
1.6 KiB
Plaintext
% Test for the D3DTTFF_* projected texture flags.
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[require]
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shader model < 3.0
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[sampler 0]
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filter point point point
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address clamp clamp clamp
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[srv 0]
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size (2d, 5, 5)
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.0 .0 .0 .1 .1 .0 .0 .1 .2 .0 .0 .1 .3 .0 .0 .1 .4 .0 .0 .1
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.0 .1 .0 .1 .1 .1 .0 .1 .2 .1 .0 .1 .3 .1 .0 .1 .4 .1 .0 .1
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.0 .2 .0 .1 .1 .2 .0 .1 .2 .2 .0 .1 .3 .2 .0 .1 .4 .2 .0 .1
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.0 .3 .0 .1 .1 .3 .0 .1 .2 .3 .0 .1 .3 .3 .0 .1 .4 .3 .0 .1
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.0 .4 .0 .1 .1 .4 .0 .1 .2 .4 .0 .1 .3 .4 .0 .1 .4 .4 .0 .1
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[vertex shader]
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void main(inout float4 pos : position, out float4 tex : texcoord)
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{
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tex = float4(1.4, 0.5, 4.0, 2.0);
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}
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[pixel shader d3dbc-hex]
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% TODO: Convert to assembly or HLSL.
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ffff0101 % ps_1_1
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00000042 b00f0000 % tex t0
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00000001 800f0000 b0e40000 % mov r0, t0
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0000ffff % end
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[test]
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projected 0 disable
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draw quad
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probe (0, 0) f32(0.4, 0.2, 0.0, 0.1)
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projected 0 enable
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draw quad
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probe (0, 0) f32(0.3, 0.1, 0.0, 0.1)
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% Doesn't affect 1.4 or 2.0.
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[pixel shader d3dbc-hex]
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% TODO: Convert to assembly or HLSL.
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ffff0104 % ps_1_4
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00000042 800f0000 b0e40000 % texld r0, t0
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0000ffff % end
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[test]
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projected 0 enable
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draw quad
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probe (0, 0) f32(0.4, 0.2, 0.0, 0.1)
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[pixel shader]
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sampler sam;
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float4 main(float2 tex : texcoord) : sv_target
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{
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return tex2D(sam, tex);
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}
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[test]
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projected 0 enable
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draw quad
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probe (0, 0) f32(0.4, 0.2, 0.0, 0.1)
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