mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-07-08 14:15:58 +00:00
This transform breaks up matNx2<f32> matrices used in uniform buffers into column vectors, which fixes std140 layout rules. Used by the SPIR-V and GLSL backends. Re-enable tests that were disabled for these cases. Bug: tint:1632 Change-Id: I596d016582b4189a0b413d762b3e7eabd3504b22 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/100907 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Dan Sinclair <dsinclair@chromium.org> Commit-Queue: Ben Clayton <bclayton@chromium.org>
41 lines
618 B
GLSL
41 lines
618 B
GLSL
#version 310 es
|
|
|
|
struct S {
|
|
int before;
|
|
mat4x2 m;
|
|
int after;
|
|
};
|
|
|
|
struct S_std140 {
|
|
int before;
|
|
vec2 m_0;
|
|
vec2 m_1;
|
|
vec2 m_2;
|
|
vec2 m_3;
|
|
int after;
|
|
};
|
|
|
|
struct u_block {
|
|
S_std140 inner[4];
|
|
};
|
|
|
|
layout(binding = 0) uniform u_block_1 {
|
|
S_std140 inner[4];
|
|
} u;
|
|
|
|
mat4x2 load_u_2_m() {
|
|
return mat4x2(u.inner[2u].m_0, u.inner[2u].m_1, u.inner[2u].m_2, u.inner[2u].m_3);
|
|
}
|
|
|
|
void f() {
|
|
mat2x4 t = transpose(load_u_2_m());
|
|
float l = length(u.inner[0u].m_1.yx);
|
|
float a = abs(u.inner[0u].m_1.yx[0u]);
|
|
}
|
|
|
|
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
|
|
void main() {
|
|
f();
|
|
return;
|
|
}
|