diff options
| author | José Fonseca <jfonseca@vmware.com> | 2009-08-14 12:02:06 +0100 |
|---|---|---|
| committer | José Fonseca <jfonseca@vmware.com> | 2009-08-29 09:21:32 +0100 |
| commit | c67570ba85e315d5e3b8a6271232e8975eae0171 (patch) | |
| tree | 38e0fad240ddb5aed178e7d3f6f50a7d58fda69f | |
| parent | 17aec9304ca86feac7ca29e17dda73a10cdd08a5 (diff) | |
llvmpipe: Clamp into range when writing integers.
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_test_main.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_test_main.c b/src/gallium/drivers/llvmpipe/lp_test_main.c index af94efb8be..32ed0f6da3 100644 --- a/src/gallium/drivers/llvmpipe/lp_test_main.c +++ b/src/gallium/drivers/llvmpipe/lp_test_main.c @@ -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); |