mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-08-26 15:57:19 +02:00
astc: Make InputBitStream constexpr
This commit is contained in:
parent
0efc230381
commit
d22a689250
@ -39,25 +39,25 @@ constexpr u32 Popcnt(u32 n) {
|
||||
|
||||
class InputBitStream {
|
||||
public:
|
||||
explicit InputBitStream(const u8* ptr, std::size_t start_offset = 0)
|
||||
: cur_byte(ptr), next_bit(start_offset % 8) {}
|
||||
constexpr explicit InputBitStream(const u8* ptr, std::size_t start_offset = 0)
|
||||
: cur_byte{ptr}, next_bit{start_offset % 8} {}
|
||||
|
||||
std::size_t GetBitsRead() const {
|
||||
return m_BitsRead;
|
||||
constexpr std::size_t GetBitsRead() const {
|
||||
return bits_read;
|
||||
}
|
||||
|
||||
u32 ReadBit() {
|
||||
u32 bit = *cur_byte >> next_bit++;
|
||||
constexpr bool ReadBit() {
|
||||
const bool bit = (*cur_byte >> next_bit++) & 1;
|
||||
while (next_bit >= 8) {
|
||||
next_bit -= 8;
|
||||
cur_byte++;
|
||||
}
|
||||
|
||||
m_BitsRead++;
|
||||
return bit & 1;
|
||||
bits_read++;
|
||||
return bit;
|
||||
}
|
||||
|
||||
u32 ReadBits(std::size_t nBits) {
|
||||
constexpr u32 ReadBits(std::size_t nBits) {
|
||||
u32 ret = 0;
|
||||
for (std::size_t i = 0; i < nBits; ++i) {
|
||||
ret |= (ReadBit() & 1) << i;
|
||||
@ -66,7 +66,7 @@ public:
|
||||
}
|
||||
|
||||
template <std::size_t nBits>
|
||||
u32 ReadBits() {
|
||||
constexpr u32 ReadBits() {
|
||||
u32 ret = 0;
|
||||
for (std::size_t i = 0; i < nBits; ++i) {
|
||||
ret |= (ReadBit() & 1) << i;
|
||||
@ -77,7 +77,7 @@ public:
|
||||
private:
|
||||
const u8* cur_byte;
|
||||
std::size_t next_bit = 0;
|
||||
std::size_t m_BitsRead = 0;
|
||||
std::size_t bits_read = 0;
|
||||
};
|
||||
|
||||
class OutputBitStream {
|
||||
|
Loading…
Reference in New Issue
Block a user