mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-05-16 12:21:35 +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>
36 lines
1.1 KiB
Plaintext
36 lines
1.1 KiB
Plaintext
#include <metal_stdlib>
|
|
|
|
using namespace metal;
|
|
struct main_out {
|
|
float4 x_GLF_color_1;
|
|
};
|
|
struct tint_symbol_2 {
|
|
float4 frag_color_param [[user(locn0)]];
|
|
};
|
|
struct tint_symbol_3 {
|
|
float4 x_GLF_color_1 [[color(0)]];
|
|
};
|
|
|
|
void main_1(thread float4* const tint_symbol_5, thread float4* const tint_symbol_6) {
|
|
float4 const x_12 = *(tint_symbol_5);
|
|
*(tint_symbol_6) = x_12;
|
|
return;
|
|
}
|
|
|
|
main_out tint_symbol_inner(float4 frag_color_param, thread float4* const tint_symbol_7, thread float4* const tint_symbol_8) {
|
|
*(tint_symbol_7) = frag_color_param;
|
|
main_1(tint_symbol_7, tint_symbol_8);
|
|
main_out const tint_symbol_4 = {.x_GLF_color_1=*(tint_symbol_8)};
|
|
return tint_symbol_4;
|
|
}
|
|
|
|
fragment tint_symbol_3 tint_symbol(tint_symbol_2 tint_symbol_1 [[stage_in]]) {
|
|
thread float4 tint_symbol_9 = 0.0f;
|
|
thread float4 tint_symbol_10 = 0.0f;
|
|
main_out const inner_result = tint_symbol_inner(tint_symbol_1.frag_color_param, &(tint_symbol_9), &(tint_symbol_10));
|
|
tint_symbol_3 wrapper_result = {};
|
|
wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
|
|
return wrapper_result;
|
|
}
|
|
|