83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 30.08.2016
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*
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* Replacements for common memory block managing functions.
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*/
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// TOP
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// TODO(allen): Make these as fast as possible
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internal void
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block_zero(void *a, umem_4tech size){
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for (u8_4tech *ptr = (u8_4tech*)a, *e = ptr + size; ptr < e; ptr += 1){
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*ptr = 0;
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}
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}
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#define block_zero_struct(s) block_zero((s), sizeof(*(s)))
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internal void
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block_fill_ones(void *a, umem_4tech size){
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for (u8_4tech *ptr = (u8_4tech*)a, *e = ptr + size; ptr < e; ptr += 1){
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*ptr = 0xFF;
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}
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}
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internal void
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block_copy(void *dst, void *src, umem_4tech size){
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for (u8_4tech *d = (u8_4tech*)dst, *s = (u8_4tech*)src, *e = s + size; s < e; d += 1, s += 1){
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*d = *s;
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}
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}
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internal i32_4tech
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block_compare(void *a, void *b, umem_4tech size){
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for (u8_4tech *aptr = (u8_4tech*)a, *bptr = (u8_4tech*)b, *e = bptr + size; bptr < e; aptr += 1, bptr += 1){
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i32_4tech dif = (i32_4tech)*aptr - (i32_4tech)*bptr;
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if (dif != 0){
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return(dif > 0?1:-1);
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}
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}
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return(0);
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}
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internal void
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block_fill_u8_4tech(void *a, umem_4tech size, u8_4tech val){
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for (u8_4tech *ptr = (u8_4tech*)a, *e = ptr + size; ptr < e; ptr += 1){
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*ptr = val;
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}
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}
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internal void
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block_fill_u16(void *a, umem_4tech size, u16_4tech val){
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Assert(size%sizeof(u16_4tech) == 0);
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umem_4tech count = size/sizeof(u16_4tech);
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for (u16_4tech *ptr = (u16_4tech*)a, *e = ptr + count; ptr < e; ptr += 1){
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*ptr = val;
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}
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}
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internal void
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block_fill_u32(void *a, umem_4tech size, u32_4tech val){
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Assert(size%sizeof(u32_4tech) == 0);
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umem_4tech count = size/sizeof(u32_4tech);
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for (u32_4tech *ptr = (u32_4tech*)a, *e = ptr + count; ptr < e; ptr += 1){
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*ptr = val;
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}
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}
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internal void
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block_fill_u64(void *a, umem_4tech size, u64_4tech val){
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Assert(size%sizeof(u64_4tech) == 0);
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umem_4tech count = size/sizeof(u64_4tech);
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for (u64_4tech *ptr = (u64_4tech*)a, *e = ptr + count; ptr < e; ptr += 1){
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*ptr = val;
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}
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}
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// BOTTOM
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