bgfx/3rdparty/glslang/Test/precise_struct_block.vert
Branimir Karadžić f46d6a5803 Added glslang.
2016-12-15 14:19:54 -08:00

90 lines
2.2 KiB
GLSL

#version 450
struct T {
float f1;
float f2;
};
out B1 {precise T s; float x;} partial_precise_block;
precise out B2 {T s; float x;} all_precise_block;
float struct_member() {
float a = 1.0;
float b = 2.0;
float c = 3.0;
float d = 4.0;
precise float result;
T S, S2, S3;
S2.f1 = a + 0.2; // NoContraction
S2.f2 = b + 0.2; // NOT NoContraction
S3.f1 = a + b; // NOT NoContraction
S = S2; // "precise" propagated through parent object nodes
result = S.f1 + 0.1; // the ADD operation should be NoContraction
return result;
}
float complex_array_struct() {
precise float result;
struct T1 {
float t1_array[3];
float t1_scalar;
};
struct T2 {
T1 t1a[5];
T1 t1b[6];
T1 t1c[7];
};
struct T3 {float f; T2 t2; vec4 v; int p;};
T3 t3[10];
for(int i=0; i<10; i++) {
t3[i].f = i / 3.0; // Not NoContraction
t3[i].v = vec4(i * 1.5); // NoContraction
t3[i].p = i + 1;
for(int j=0; j<5; j++) {
for(int k = 0; k<3; k++) {
t3[i].t2.t1a[j].t1_array[k] = i * j + k; // Not NoContraction
}
t3[i].t2.t1a[j].t1_scalar = j * 2.0 / i; // Not NoContration
}
for(int j=0; j<6; j++) {
for(int k = 0; k<3; k++) {
t3[i].t2.t1b[j].t1_array[k] = i * j + k; // Not NoContraction
}
t3[i].t2.t1b[j].t1_scalar = j * 2.0 / i; // NoContraction
}
for(int j=0; j<6; j++) {
for(int k = 0; k<3; k++) {
t3[i].t2.t1c[j].t1_array[k] = i * j + k; // Not NoContraction because all operands are integers
}
t3[i].t2.t1c[j].t1_scalar = j * 2.0 / i; // Not NoContraction
}
}
int i = 2;
result = t3[5].t2.t1c[6].t1_array[1]
+ t3[2].t2.t1b[1].t1_scalar
+ t3[i - 1].v.xy.x; // NoContraction
return result;
}
float out_block() {
float a = 0.1;
float b = 0.2;
partial_precise_block.s.f1 = a + b; // NoContraction
partial_precise_block.s.f2 = a - b; // NoContraction
partial_precise_block.x = a * b; // Not NoContraction
all_precise_block.s.f1 = a + b + 1.0; // NoContraction
all_precise_block.s.f2 = a - b - 1.0; // NoContraction
all_precise_block.x = a * b * 2.0; // Also NoContraction
return a + b; // Not NoContraction
}
void main(){}