mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-08-04 11:15:46 +00:00
a5d73ce965
This is a major reworking of this transform. The old transform code was getting unwieldy, with part of the complication coming from the handling of multiple return statements. By generating a wrapper function instead, we can avoid a lot of this complexity. The original entry point function is stripped of all shader IO attributes (as well as `stage` and `workgroup_size`), but the body is left unmodified. A new entry point wrapper function is introduced which calls the original function, packing/unpacking the shader inputs as necessary, and propagates the result to the corresponding shader outputs. The new code has been refactored to use a state object with the different parts of the transform split into separate functions, which makes it much more manageable. Fixed: tint:1076 Bug: tint:920 Change-Id: I3490a0ea7a3509a4e198ce730e476516649d8d96 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60521 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
82 lines
1.8 KiB
Plaintext
82 lines
1.8 KiB
Plaintext
#include <metal_stdlib>
|
|
|
|
using namespace metal;
|
|
struct buf0 {
|
|
/* 0x0000 */ int zero;
|
|
};
|
|
struct main_out {
|
|
float4 x_GLF_color_1;
|
|
};
|
|
struct tint_symbol_1 {
|
|
float4 x_GLF_color_1 [[color(0)]];
|
|
};
|
|
|
|
float func_(constant buf0& x_8) {
|
|
float s = 0.0f;
|
|
int i = 0;
|
|
int j = 0;
|
|
s = 2.0f;
|
|
i = 0;
|
|
while (true) {
|
|
int const x_47 = i;
|
|
int const x_49 = x_8.zero;
|
|
if ((x_47 < as_type<int>((as_type<uint>(x_49) + as_type<uint>(1))))) {
|
|
} else {
|
|
break;
|
|
}
|
|
float const x_53 = s;
|
|
s = (x_53 + 3.0f);
|
|
j = 0;
|
|
while (true) {
|
|
int const x_59 = j;
|
|
if ((x_59 < 10)) {
|
|
} else {
|
|
break;
|
|
}
|
|
int const x_63 = x_8.zero;
|
|
if ((x_63 == 1)) {
|
|
discard_fragment();
|
|
}
|
|
{
|
|
int const x_67 = j;
|
|
j = as_type<int>((as_type<uint>(x_67) + as_type<uint>(1)));
|
|
}
|
|
}
|
|
{
|
|
int const x_69 = i;
|
|
i = as_type<int>((as_type<uint>(x_69) + as_type<uint>(1)));
|
|
}
|
|
}
|
|
float const x_71 = s;
|
|
return x_71;
|
|
}
|
|
|
|
void main_1(constant buf0& x_8, thread float4* const tint_symbol_3) {
|
|
float4 c = 0.0f;
|
|
float const x_34 = func_(x_8);
|
|
c = float4(x_34, 0.0f, 0.0f, 1.0f);
|
|
float const x_36 = func_(x_8);
|
|
if ((x_36 == 5.0f)) {
|
|
float4 const x_41 = c;
|
|
*(tint_symbol_3) = x_41;
|
|
} else {
|
|
*(tint_symbol_3) = float4(0.0f, 0.0f, 0.0f, 0.0f);
|
|
}
|
|
return;
|
|
}
|
|
|
|
main_out tint_symbol_inner(constant buf0& x_8, thread float4* const tint_symbol_4) {
|
|
main_1(x_8, tint_symbol_4);
|
|
main_out const tint_symbol_2 = {.x_GLF_color_1=*(tint_symbol_4)};
|
|
return tint_symbol_2;
|
|
}
|
|
|
|
fragment tint_symbol_1 tint_symbol(constant buf0& x_8 [[buffer(0)]]) {
|
|
thread float4 tint_symbol_5 = 0.0f;
|
|
main_out const inner_result = tint_symbol_inner(x_8, &(tint_symbol_5));
|
|
tint_symbol_1 wrapper_result = {};
|
|
wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
|
|
return wrapper_result;
|
|
}
|
|
|