bf58add00e
This reverts commit e7a8f85e4f.
Reason for revert: must revert dependent CL
Original change's description:
> Only include header once in combined MSL shader.
>
> Bug: skia:11389
> Change-Id: I3e24dcaa2cfeddc7efd7985f9f42a59bfc8175f2
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/385137
> Reviewed-by: John Stiles <johnstiles@google.com>
> Commit-Queue: Jim Van Verth <jvanverth@google.com>
TBR=jvanverth@google.com,johnstiles@google.com
Change-Id: I7a886b6c57a666e54e65365e41dcb57bd9ab4ba6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:11389
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/385237
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
56 lines
2.0 KiB
Metal
56 lines
2.0 KiB
Metal
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Inputs {
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};
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struct Outputs {
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float4 sk_FragColor [[color(0)]];
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};
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struct Globals {
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float4x4 a;
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};
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float4x4 float4x4_inverse(float4x4 m) {
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float a00 = m[0][0], a01 = m[0][1], a02 = m[0][2], a03 = m[0][3];
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float a10 = m[1][0], a11 = m[1][1], a12 = m[1][2], a13 = m[1][3];
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float a20 = m[2][0], a21 = m[2][1], a22 = m[2][2], a23 = m[2][3];
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float a30 = m[3][0], a31 = m[3][1], a32 = m[3][2], a33 = m[3][3];
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float b00 = a00*a11 - a01*a10;
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float b01 = a00*a12 - a02*a10;
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float b02 = a00*a13 - a03*a10;
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float b03 = a01*a12 - a02*a11;
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float b04 = a01*a13 - a03*a11;
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float b05 = a02*a13 - a03*a12;
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float b06 = a20*a31 - a21*a30;
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float b07 = a20*a32 - a22*a30;
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float b08 = a20*a33 - a23*a30;
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float b09 = a21*a32 - a22*a31;
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float b10 = a21*a33 - a23*a31;
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float b11 = a22*a33 - a23*a32;
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float det = b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06;
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return float4x4(a11*b11 - a12*b10 + a13*b09,
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a02*b10 - a01*b11 - a03*b09,
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a31*b05 - a32*b04 + a33*b03,
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a22*b04 - a21*b05 - a23*b03,
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a12*b08 - a10*b11 - a13*b07,
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a00*b11 - a02*b08 + a03*b07,
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a32*b02 - a30*b05 - a33*b01,
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a20*b05 - a22*b02 + a23*b01,
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a10*b10 - a11*b08 + a13*b06,
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a01*b08 - a00*b10 - a03*b06,
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a30*b04 - a31*b02 + a33*b00,
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a21*b02 - a20*b04 - a23*b00,
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a11*b07 - a10*b09 - a12*b06,
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a00*b09 - a01*b07 + a02*b06,
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a31*b01 - a30*b03 - a32*b00,
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a20*b03 - a21*b01 + a22*b00) * (1/det);
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}
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fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
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Globals _globals{{}};
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(void)_globals;
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Outputs _out;
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(void)_out;
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_out.sk_FragColor = float4x4_inverse(_globals.a)[0];
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return _out;
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}
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