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[英]openGLES 2 - Is there a way to load a texture with one alpha element per 1-bit, without expanding to an unsigned byte?
[英]Count the consecutive 1-bit without overlapping
确定不与C中其他对重叠的1位对的数量。但是我的代码不包括第一个数字。 像11011有2对1位,但是我的输出给我1对,因为它不包括第一个数字。
int numPairs(int n){
int count=0;
bool prevOne=0;
while(n!=0){
bool currOne=(n&1)==1;
if(currOne && !prevOne)
count++;
n=n>>1;
prevOne=!currOne;
}
return count/2;
}
int numPairs(int n)
{
int count=0;
bool prevOne=0; // 1 if previous bit was 1.
while(n!=0)
{
bool currOne=(n&1)==1;
if(currOne && prevOne)
count++;
n=n>>1;
prevOne=currOne;
}
return count; // no need divide count by 2 as count exactly specifies number of 1bit pairs.
}
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