| 35 | #include "ls_defines.h" |
| 36 | |
| 37 | WELSVP_NAMESPACE_BEGIN |
| 38 | |
| 39 | int32_t CheckLine (uint8_t* pData, int32_t iWidth) { |
| 40 | int32_t iQualified = 0; |
| 41 | int32_t iColorMap[8] = {0}; |
| 42 | int32_t iChangedTimes = 0; |
| 43 | int32_t iColorCounts = 0; |
| 44 | |
| 45 | RECORD_COLOR (pData[0], iColorMap); |
| 46 | |
| 47 | for (int32_t i = 1; i < iWidth; i++) { |
| 48 | RECORD_COLOR (pData[i], iColorMap); |
| 49 | iChangedTimes += (pData[i] != pData[i - 1]); |
| 50 | } |
| 51 | for (int32_t i = 0; i < 8; i++) |
| 52 | for (int32_t j = 0; j < 32; j++) |
| 53 | iColorCounts += ((iColorMap[i] >> j) & 1); |
| 54 | |
| 55 | switch (iColorCounts) { |
| 56 | case 1: |
| 57 | iQualified = 0; |
| 58 | break; |
| 59 | case 2: |
| 60 | case 3: |
| 61 | iQualified = (iChangedTimes > 3); |
| 62 | break; |
| 63 | default: |
| 64 | iQualified = 1; |
| 65 | break; |
| 66 | } |
| 67 | return iQualified; |
| 68 | } |
| 69 | |
| 70 | int32_t SelectTestLine (uint8_t* pY, int32_t iWidth, int32_t iHeight, int32_t iPicHeight, |
| 71 | int32_t iStride, int32_t iOffsetX, int32_t iOffsetY) { |