Function convertR8ToRG8

core/renderer/backend/PixelFormatUtils.cpp:238–246

IIIIIIII -> IIIIIIIIAAAAAAAA

// IIIIIIII -> IIIIIIIIAAAAAAAA
static void convertR8ToRG8(const unsigned char* data, size_t dataLen, unsigned char* outData)
{
    unsigned short* out16 = (unsigned short*)outData;
    for (size_t i = 0; i < dataLen; ++i)
    {
        *out16++ = 0xFF00      // A
                   | data[i];  // I
    }
}

// IIIIIIIIAAAAAAAA -> AAAAAAAA
static void convertRG8ToR8(const unsigned char* data, size_t dataLen, unsigned char* outData)