dawn-cmake/test/tint/builtins/gen/countLeadingZeros/6d4656.wgsl.expected.glsl
Ben Clayton 27aa57ccac builtins: Add countLeadingZeros
Requires polyfilling for all but the MSL backend.

CTS tests: https://github.com/gpuweb/cts/pull/1001

Bug: tint:1367
Change-Id: I75097de945909e3242ede9001124d8821bc832bc
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/81380
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-22 23:13:39 +00:00

94 lines
2.1 KiB
GLSL

#version 310 es
int tint_count_leading_zeros(int v) {
uint x = uint(v);
uint b16 = ((x <= 65535u) ? 16u : 0u);
x = (x << b16);
uint b8 = ((x <= 16777215u) ? 8u : 0u);
x = (x << b8);
uint b4 = ((x <= 268435455u) ? 4u : 0u);
x = (x << b4);
uint b2 = ((x <= 1073741823u) ? 2u : 0u);
x = (x << b2);
uint b1 = ((x <= 2147483647u) ? 1u : 0u);
uint is_zero = ((x == 0u) ? 1u : 0u);
return int((((((b16 | b8) | b4) | b2) | b1) + is_zero));
}
void countLeadingZeros_6d4656() {
int res = tint_count_leading_zeros(1);
}
vec4 vertex_main() {
countLeadingZeros_6d4656();
return vec4(0.0f, 0.0f, 0.0f, 0.0f);
}
void main() {
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;
int tint_count_leading_zeros(int v) {
uint x = uint(v);
uint b16 = ((x <= 65535u) ? 16u : 0u);
x = (x << b16);
uint b8 = ((x <= 16777215u) ? 8u : 0u);
x = (x << b8);
uint b4 = ((x <= 268435455u) ? 4u : 0u);
x = (x << b4);
uint b2 = ((x <= 1073741823u) ? 2u : 0u);
x = (x << b2);
uint b1 = ((x <= 2147483647u) ? 1u : 0u);
uint is_zero = ((x == 0u) ? 1u : 0u);
return int((((((b16 | b8) | b4) | b2) | b1) + is_zero));
}
void countLeadingZeros_6d4656() {
int res = tint_count_leading_zeros(1);
}
void fragment_main() {
countLeadingZeros_6d4656();
}
void main() {
fragment_main();
return;
}
#version 310 es
int tint_count_leading_zeros(int v) {
uint x = uint(v);
uint b16 = ((x <= 65535u) ? 16u : 0u);
x = (x << b16);
uint b8 = ((x <= 16777215u) ? 8u : 0u);
x = (x << b8);
uint b4 = ((x <= 268435455u) ? 4u : 0u);
x = (x << b4);
uint b2 = ((x <= 1073741823u) ? 2u : 0u);
x = (x << b2);
uint b1 = ((x <= 2147483647u) ? 1u : 0u);
uint is_zero = ((x == 0u) ? 1u : 0u);
return int((((((b16 | b8) | b4) | b2) | b1) + is_zero));
}
void countLeadingZeros_6d4656() {
int res = tint_count_leading_zeros(1);
}
void compute_main() {
countLeadingZeros_6d4656();
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
compute_main();
return;
}