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llvmpipe: Clamp into range when writing integers.

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This commit is contained in:
José Fonseca 2009-08-14 12:02:06 +01:00
parent 17aec9304c
commit c67570ba85
1 changed files with 11 additions and 9 deletions
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20
src/gallium/drivers/llvmpipe/lp_test_main.c
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@ -136,38 +136,40 @@ write_elem(union lp_type type, void *dst, unsigned index, double value)
}
else {
double scale = lp_const_scale(type);
value = round(value*scale);
long long lvalue = (long long)round(value*scale);
if(type.sign) {
lvalue = MIN2(lvalue, (1 << (type.width - 1)) - 1);
switch(type.width) {
case 8:
*((int8_t *)dst + index) = (int8_t)value;
*((int8_t *)dst + index) = (int8_t)lvalue;
break;
case 16:
*((int16_t *)dst + index) = (int16_t)value;
*((int16_t *)dst + index) = (int16_t)lvalue;
break;
case 32:
*((int32_t *)dst + index) = (int32_t)value;
*((int32_t *)dst + index) = (int32_t)lvalue;
break;
case 64:
*((int64_t *)dst + index) = (int32_t)value;
*((int64_t *)dst + index) = (int32_t)lvalue;
break;
default:
assert(0);
}
}
else {
lvalue = MIN2(lvalue, (1 << type.width) - 1);
switch(type.width) {
case 8:
*((uint8_t *)dst + index) = (uint8_t)value;
*((uint8_t *)dst + index) = (uint8_t)lvalue;
break;
case 16:
*((uint16_t *)dst + index) = (uint16_t)value;
*((uint16_t *)dst + index) = (uint16_t)lvalue;
break;
case 32:
*((uint32_t *)dst + index) = (uint32_t)value;
*((uint32_t *)dst + index) = (uint32_t)lvalue;
break;
case 64:
*((uint64_t *)dst + index) = (uint64_t)value;
*((uint64_t *)dst + index) = (uint64_t)lvalue;
break;
default:
assert(0);