36a0b63f28
There was a potential problem if variables were invalidated and SPIR-V read expressions which depended on other expression which in turn depended on the invalidated variable. Also fixes issue where variables were considered immutable if they were forwardable. This allowed some incorrect optimizations to slip through.
97 lines
1.9 KiB
Plaintext
97 lines
1.9 KiB
Plaintext
#version 310 es
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layout(local_size_x = 64, local_size_y = 1, local_size_z = 1) in;
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layout(binding = 0, std430) buffer Distribution
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{
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vec2 distribution[];
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} _190;
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layout(binding = 2, std140) uniform UBO
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{
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vec4 uModTime;
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} _218;
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layout(binding = 1, std430) buffer HeightmapFFT
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{
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uint heights[];
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} _276;
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uvec2 workaround_mix(uvec2 a, uvec2 b, bvec2 sel)
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{
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uint _137;
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uint _148;
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if (sel.x)
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{
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_137 = b.x;
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}
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else
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{
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_137 = a.x;
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}
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uint _147 = _137;
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if (sel.y)
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{
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_148 = b.y;
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}
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else
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{
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_148 = a.y;
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}
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return uvec2(_147, _148);
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}
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vec2 alias(vec2 i, vec2 N)
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{
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return mix(i, (i - N), greaterThan(i, (N * 0.5)));
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}
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vec2 cmul(vec2 a, vec2 b)
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{
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vec2 r3 = a.yx;
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vec2 r1 = b.xx;
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vec2 R0 = (a * r1);
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vec2 r2 = b.yy;
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vec2 R1 = (r2 * r3);
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return (R0 + vec2((-R1.x), R1.y));
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}
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uint pack2(vec2 v)
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{
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return packHalf2x16(v);
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}
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void generate_heightmap()
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{
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uvec2 N = (uvec2(64u, 1u) * gl_NumWorkGroups.xy);
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uvec2 i = gl_GlobalInvocationID.xy;
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uvec2 param = (N - i);
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uvec2 param_1 = uvec2(0u);
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bvec2 param_2 = equal(i, uvec2(0u));
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uvec2 wi = workaround_mix(param, param_1, param_2);
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vec2 a = _190.distribution[((i.y * N.x) + i.x)];
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vec2 b = _190.distribution[((wi.y * N.x) + wi.x)];
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vec2 param_3 = vec2(i);
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vec2 param_4 = vec2(N);
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vec2 k = (_218.uModTime.xy * alias(param_3, param_4));
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float k_len = length(k);
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float w = (sqrt((9.81000041961669921875 * k_len)) * _218.uModTime.z);
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float cw = cos(w);
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float sw = sin(w);
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vec2 param_5 = a;
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vec2 param_6 = vec2(cw, sw);
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a = cmul(param_5, param_6);
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vec2 param_7 = b;
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vec2 param_8 = vec2(cw, sw);
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b = cmul(param_7, param_8);
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b = vec2(b.x, (-b.y));
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vec2 res = (a + b);
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vec2 param_9 = res;
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_276.heights[((i.y * N.x) + i.x)] = pack2(param_9);
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}
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void main()
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{
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generate_heightmap();
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}
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