encounter
/
dawn-cmake
mirror of https://github.com/encounter/dawn-cmake.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
dawn-cmake/test/tint/builtins/gen/firstLeadingBit/000ff3.wgsl.expected.glsl

95 lines
2.7 KiB
Plaintext
Raw Normal View History

builtins: Add firstLeadingBit Currently polyfilled for all backends. HLSL should be able to map this to 'firstbithigh', but there might need to be some special case handling for 0 (undocumented behavior). For now just polyfill. CTS tests: https://github.com/gpuweb/cts/pull/1004 Bug: tint:1367 Bug: tint:1449 Change-Id: I9c9a08ea93d1c4a602e0ab763e95e2eea336fb0d Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/81503 Reviewed-by: David Neto <dneto@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-23 18:20:30 +00:00
#version 310 es
uvec4 tint_first_leading_bit(uvec4 v) {
uvec4 x = v;
uvec4 b16 = mix(uvec4(0u), uvec4(16u), bvec4((x & uvec4(4294901760u))));
x = (x >> b16);
uvec4 b8 = mix(uvec4(0u), uvec4(8u), bvec4((x & uvec4(65280u))));
x = (x >> b8);
uvec4 b4 = mix(uvec4(0u), uvec4(4u), bvec4((x & uvec4(240u))));
x = (x >> b4);
uvec4 b2 = mix(uvec4(0u), uvec4(2u), bvec4((x & uvec4(12u))));
x = (x >> b2);
uvec4 b1 = mix(uvec4(0u), uvec4(1u), bvec4((x & uvec4(2u))));
uvec4 is_zero = mix(uvec4(0u), uvec4(4294967295u), equal(x, uvec4(0u)));
return uvec4((((((b16 | b8) | b4) | b2) | b1) | is_zero));
}
void firstLeadingBit_000ff3() {
uvec4 res = tint_first_leading_bit(uvec4(0u, 0u, 0u, 0u));
}
vec4 vertex_main() {
firstLeadingBit_000ff3();
return vec4(0.0f, 0.0f, 0.0f, 0.0f);
}
void main() {
GLSL writer: emit gl_PointSize = 1 in all vertex shaders for OpenGL. The OpenGL ES 3.1 spec says: "The point size is taken from the shader built-in gl_PointSize written by the vertex shader, and clamped to the implementation-dependent point size range. If the value written to gl_PointSize is less than or equal to zero, or if no value is written, the point size is undefined." ANGLE/D3D11 will emit a warning on this and abort processing, causing dawn_end2end tests to fail. Bug: dawn:1390 Change-Id: I6a56467842ba80d8a070af7240ee07bb111089dd Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87720 Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-04-22 21:25:02 +00:00
gl_PointSize = 1.0;
builtins: Add firstLeadingBit Currently polyfilled for all backends. HLSL should be able to map this to 'firstbithigh', but there might need to be some special case handling for 0 (undocumented behavior). For now just polyfill. CTS tests: https://github.com/gpuweb/cts/pull/1004 Bug: tint:1367 Bug: tint:1449 Change-Id: I9c9a08ea93d1c4a602e0ab763e95e2eea336fb0d Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/81503 Reviewed-by: David Neto <dneto@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-23 18:20:30 +00:00
vec4 inner_result = vertex_main();
gl_Position = inner_result;
gl_Position.y = -(gl_Position.y);
gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
return;
}
#version 310 es
precision mediump float;
uvec4 tint_first_leading_bit(uvec4 v) {
uvec4 x = v;
uvec4 b16 = mix(uvec4(0u), uvec4(16u), bvec4((x & uvec4(4294901760u))));
x = (x >> b16);
uvec4 b8 = mix(uvec4(0u), uvec4(8u), bvec4((x & uvec4(65280u))));
x = (x >> b8);
uvec4 b4 = mix(uvec4(0u), uvec4(4u), bvec4((x & uvec4(240u))));
x = (x >> b4);
uvec4 b2 = mix(uvec4(0u), uvec4(2u), bvec4((x & uvec4(12u))));
x = (x >> b2);
uvec4 b1 = mix(uvec4(0u), uvec4(1u), bvec4((x & uvec4(2u))));
uvec4 is_zero = mix(uvec4(0u), uvec4(4294967295u), equal(x, uvec4(0u)));
return uvec4((((((b16 | b8) | b4) | b2) | b1) | is_zero));
}
void firstLeadingBit_000ff3() {
uvec4 res = tint_first_leading_bit(uvec4(0u, 0u, 0u, 0u));
}
void fragment_main() {
firstLeadingBit_000ff3();
}
void main() {
fragment_main();
return;
}
#version 310 es
uvec4 tint_first_leading_bit(uvec4 v) {
uvec4 x = v;
uvec4 b16 = mix(uvec4(0u), uvec4(16u), bvec4((x & uvec4(4294901760u))));
x = (x >> b16);
uvec4 b8 = mix(uvec4(0u), uvec4(8u), bvec4((x & uvec4(65280u))));
x = (x >> b8);
uvec4 b4 = mix(uvec4(0u), uvec4(4u), bvec4((x & uvec4(240u))));
x = (x >> b4);
uvec4 b2 = mix(uvec4(0u), uvec4(2u), bvec4((x & uvec4(12u))));
x = (x >> b2);
uvec4 b1 = mix(uvec4(0u), uvec4(1u), bvec4((x & uvec4(2u))));
uvec4 is_zero = mix(uvec4(0u), uvec4(4294967295u), equal(x, uvec4(0u)));
return uvec4((((((b16 | b8) | b4) | b2) | b1) | is_zero));
}
void firstLeadingBit_000ff3() {
uvec4 res = tint_first_leading_bit(uvec4(0u, 0u, 0u, 0u));
}
void compute_main() {
firstLeadingBit_000ff3();
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
compute_main();
return;
}