mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-05-16 04:11:25 +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>
80 lines
2.9 KiB
Plaintext
80 lines
2.9 KiB
Plaintext
#include <metal_stdlib>
|
|
|
|
using namespace metal;
|
|
struct buf0 {
|
|
/* 0x0000 */ packed_float2 resolution;
|
|
};
|
|
struct tint_array_wrapper {
|
|
float4 arr[16];
|
|
};
|
|
struct main_out {
|
|
float4 x_GLF_color_1;
|
|
};
|
|
struct tint_symbol_1 {
|
|
float4 x_GLF_color_1 [[color(0)]];
|
|
};
|
|
|
|
int collatz_i1_(thread int* const v) {
|
|
int count = 0;
|
|
count = 0;
|
|
while (true) {
|
|
int const x_89 = *(v);
|
|
if ((x_89 > 1)) {
|
|
} else {
|
|
break;
|
|
}
|
|
int const x_92 = *(v);
|
|
if (((x_92 & 1) == 1)) {
|
|
int const x_98 = *(v);
|
|
*(v) = as_type<int>((as_type<uint>(as_type<int>((as_type<uint>(3) * as_type<uint>(x_98)))) + as_type<uint>(1)));
|
|
} else {
|
|
int const x_101 = *(v);
|
|
*(v) = (x_101 / 2);
|
|
}
|
|
int const x_103 = count;
|
|
count = as_type<int>((as_type<uint>(x_103) + as_type<uint>(1)));
|
|
}
|
|
int const x_105 = count;
|
|
return x_105;
|
|
}
|
|
|
|
void main_1(constant buf0& x_10, thread float4* const tint_symbol_4, thread float4* const tint_symbol_5) {
|
|
float2 lin = 0.0f;
|
|
int v_1 = 0;
|
|
int param = 0;
|
|
tint_array_wrapper indexable = {};
|
|
float4 const x_63 = *(tint_symbol_4);
|
|
float2 const x_66 = x_10.resolution;
|
|
lin = (float2(x_63.x, x_63.y) / x_66);
|
|
float2 const x_68 = lin;
|
|
lin = floor((x_68 * 8.0f));
|
|
float const x_72 = lin.x;
|
|
float const x_76 = lin.y;
|
|
v_1 = as_type<int>((as_type<uint>(as_type<int>((as_type<uint>(int(x_72)) * as_type<uint>(8)))) + as_type<uint>(int(x_76))));
|
|
int const x_79 = v_1;
|
|
param = x_79;
|
|
int const x_80 = collatz_i1_(&(param));
|
|
tint_array_wrapper const tint_symbol_2 = {.arr={float4(0.0f, 0.0f, 0.0f, 1.0f), float4(0.5f, 0.0f, 0.0f, 1.0f), float4(0.0f, 0.5f, 0.0f, 1.0f), float4(0.5f, 0.5f, 0.0f, 1.0f), float4(0.0f, 0.0f, 0.5f, 1.0f), float4(0.5f, 0.0f, 0.5f, 1.0f), float4(0.0f, 0.5f, 0.5f, 1.0f), float4(0.5f, 0.5f, 0.5f, 1.0f), float4(0.0f, 0.0f, 0.0f, 1.0f), float4(1.0f, 0.0f, 0.0f, 1.0f), float4(0.0f, 1.0f, 0.0f, 1.0f), float4(1.0f, 1.0f, 0.0f, 1.0f), float4(0.0f, 0.0f, 1.0f, 1.0f), float4(1.0f, 0.0f, 1.0f, 1.0f), float4(0.0f, 1.0f, 1.0f, 1.0f), float4(1.0f, 1.0f, 1.0f, 1.0f)}};
|
|
indexable = tint_symbol_2;
|
|
float4 const x_83 = indexable.arr[(x_80 % 16)];
|
|
*(tint_symbol_5) = x_83;
|
|
return;
|
|
}
|
|
|
|
main_out tint_symbol_inner(constant buf0& x_10, float4 gl_FragCoord_param, thread float4* const tint_symbol_6, thread float4* const tint_symbol_7) {
|
|
*(tint_symbol_6) = gl_FragCoord_param;
|
|
main_1(x_10, tint_symbol_6, tint_symbol_7);
|
|
main_out const tint_symbol_3 = {.x_GLF_color_1=*(tint_symbol_7)};
|
|
return tint_symbol_3;
|
|
}
|
|
|
|
fragment tint_symbol_1 tint_symbol(float4 gl_FragCoord_param [[position]], constant buf0& x_10 [[buffer(0)]]) {
|
|
thread float4 tint_symbol_8 = 0.0f;
|
|
thread float4 tint_symbol_9 = 0.0f;
|
|
main_out const inner_result = tint_symbol_inner(x_10, gl_FragCoord_param, &(tint_symbol_8), &(tint_symbol_9));
|
|
tint_symbol_1 wrapper_result = {};
|
|
wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
|
|
return wrapper_result;
|
|
}
|
|
|