GLSL: implement host-visible memory padding.

Since GLSL ES does not support the offset= attribute, struct members
with explicit @align or @size attributes require adding explicit
padding members.  This in turn requires rewriting any constructor
calls to initialize the new padding to zero, handled in the same
transform.

Note that this is currently overly-verbose, and will add padding where
GLSL doesn't technically need it (e.g., padding a vec3 out to 16 bytes).

Bug: tint:1415
Change-Id: Ia9ba513066a0e84f4c43247fcbbe02f5fadd6630
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/101720
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This commit is contained in:
Stephen White
2022-09-13 19:48:51 +00:00
committed by Dawn LUCI CQ
parent 26ffcd1768
commit 05d8b02b0f
146 changed files with 1452 additions and 192 deletions

View File

@@ -10,7 +10,7 @@ struct S {
ivec4 src_private[4] = ivec4[4](ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0));
shared ivec4 src_workgroup[4];
layout(binding = 0) uniform src_uniform_block_ubo {
layout(binding = 0, std140) uniform src_uniform_block_ubo {
S inner;
} src_uniform;

View File

@@ -10,7 +10,7 @@ struct S {
ivec4 src_private[4] = ivec4[4](ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0));
shared ivec4 src_workgroup[4];
layout(binding = 0) uniform src_uniform_block_ubo {
layout(binding = 0, std140) uniform src_uniform_block_ubo {
S inner;
} src_uniform;

View File

@@ -10,7 +10,7 @@ struct S {
ivec4 src_private[4] = ivec4[4](ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0));
shared ivec4 src_workgroup[4];
layout(binding = 0) uniform src_uniform_block_ubo {
layout(binding = 0, std140) uniform src_uniform_block_ubo {
S inner;
} src_uniform;

View File

@@ -10,7 +10,7 @@ struct S {
ivec4 src_private[4] = ivec4[4](ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0));
shared ivec4 src_workgroup[4];
layout(binding = 0) uniform src_uniform_block_ubo {
layout(binding = 0, std140) uniform src_uniform_block_ubo {
S inner;
} src_uniform;

View File

@@ -2,10 +2,31 @@
struct strided_arr {
float el;
uint pad;
};
struct strided_arr_1 {
strided_arr el[3][2];
uint pad_1;
uint pad_2;
uint pad_3;
uint pad_4;
uint pad_5;
uint pad_6;
uint pad_7;
uint pad_8;
uint pad_9;
uint pad_10;
uint pad_11;
uint pad_12;
uint pad_13;
uint pad_14;
uint pad_15;
uint pad_16;
uint pad_17;
uint pad_18;
uint pad_19;
uint pad_20;
};
layout(binding = 0, std430) buffer S_ssbo {
@@ -17,7 +38,7 @@ void f_1() {
strided_arr x_24[3][2] = s.a[3].el;
strided_arr x_28[2] = s.a[3].el[2];
float x_32 = s.a[3].el[2][1].el;
strided_arr_1 tint_symbol[4] = strided_arr_1[4](strided_arr_1(strided_arr[3][2](strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)), strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)), strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)))), strided_arr_1(strided_arr[3][2](strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)), strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)), strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)))), strided_arr_1(strided_arr[3][2](strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)), strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)), strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)))), strided_arr_1(strided_arr[3][2](strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)), strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)), strided_arr[2](strided_arr(0.0f), strided_arr(0.0f)))));
strided_arr_1 tint_symbol[4] = strided_arr_1[4](strided_arr_1(strided_arr[3][2](strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u)), strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u)), strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u))), 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u), strided_arr_1(strided_arr[3][2](strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u)), strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u)), strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u))), 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u), strided_arr_1(strided_arr[3][2](strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u)), strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u)), strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u))), 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u), strided_arr_1(strided_arr[3][2](strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u)), strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u)), strided_arr[2](strided_arr(0.0f, 0u), strided_arr(0.0f, 0u))), 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u));
s.a = tint_symbol;
s.a[3].el[2][1].el = 5.0f;
return;