23da445bd4
Multiple patches can run in the same workgroup when using multi-patch mode, so we need to allocate enough storage to avoid false sharing.
53 lines
1.4 KiB
GLSL
53 lines
1.4 KiB
GLSL
#pragma clang diagnostic ignored "-Wmissing-prototypes"
|
|
|
|
#include <metal_stdlib>
|
|
#include <simd/simd.h>
|
|
|
|
using namespace metal;
|
|
|
|
struct P
|
|
{
|
|
float a;
|
|
float b;
|
|
};
|
|
|
|
struct C
|
|
{
|
|
float a;
|
|
float b;
|
|
};
|
|
|
|
struct main0_out
|
|
{
|
|
float C_b;
|
|
float4 gl_Position;
|
|
};
|
|
|
|
struct main0_patchOut
|
|
{
|
|
float P_a;
|
|
float P_b;
|
|
};
|
|
|
|
static inline __attribute__((always_inline))
|
|
void write_in_function(device main0_patchOut& patchOut, threadgroup C (&c)[4], device main0_out* thread & gl_out, thread uint& gl_InvocationID)
|
|
{
|
|
patchOut.P_a = 1.0;
|
|
patchOut.P_b = 2.0;
|
|
c[gl_InvocationID].a = 3.0;
|
|
gl_out[gl_InvocationID].C_b = 4.0;
|
|
gl_out[gl_InvocationID].gl_Position = float4(1.0);
|
|
}
|
|
|
|
kernel void main0(uint3 gl_GlobalInvocationID [[thread_position_in_grid]], device main0_out* spvOut [[buffer(28)]], constant uint* spvIndirectParams [[buffer(29)]], device main0_patchOut* spvPatchOut [[buffer(27)]], device MTLQuadTessellationFactorsHalf* spvTessLevel [[buffer(26)]])
|
|
{
|
|
device main0_out* gl_out = &spvOut[gl_GlobalInvocationID.x - gl_GlobalInvocationID.x % 4];
|
|
threadgroup C spvStoragec[8][4];
|
|
threadgroup C (&c)[4] = spvStoragec[(gl_GlobalInvocationID.x / 4) % 8];
|
|
device main0_patchOut& patchOut = spvPatchOut[gl_GlobalInvocationID.x / 4];
|
|
uint gl_InvocationID = gl_GlobalInvocationID.x % 4;
|
|
uint gl_PrimitiveID = min(gl_GlobalInvocationID.x / 4, spvIndirectParams[1]);
|
|
write_in_function(patchOut, c, gl_out, gl_InvocationID);
|
|
}
|
|
|