diff options
Diffstat (limited to 'core/fxcodec/codec/fx_codec_progress.cpp')
| -rw-r--r-- | core/fxcodec/codec/fx_codec_progress.cpp | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/core/fxcodec/codec/fx_codec_progress.cpp b/core/fxcodec/codec/fx_codec_progress.cpp index 7e29524b2f..8807879e6e 100644 --- a/core/fxcodec/codec/fx_codec_progress.cpp +++ b/core/fxcodec/codec/fx_codec_progress.cpp @@ -1478,12 +1478,10 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( int des_left = m_startX; uint8_t* des_scan = pDeviceBitmap->GetBuffer() + des_line * pDeviceBitmap->GetPitch(); - int src_bpp = src_format & 0xff; - int des_bpp = pDeviceBitmap->GetBPP(); - int src_Bpp = src_bpp >> 3; - int des_Bpp = des_bpp >> 3; - src_scan += src_left * src_Bpp; - des_scan += des_left * des_Bpp; + int src_bytes_per_pixel = (src_format & 0xff) / 8; + int dest_bytes_per_pixel = pDeviceBitmap->GetBPP() / 8; + src_scan += src_left * src_bytes_per_pixel; + des_scan += des_left * dest_bytes_per_pixel; for (int des_col = 0; des_col < m_sizeX; des_col++) { PixelWeight* pPixelWeights = m_WeightHorz.GetPixelWeight(des_col); switch (m_TransMethod) { @@ -1523,7 +1521,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( j++) { int pixel_weight = pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; - const uint8_t* src_pixel = src_scan + j * src_Bpp; + const uint8_t* src_pixel = src_scan + j * src_bytes_per_pixel; des_b += pixel_weight * (*src_pixel++); des_g += pixel_weight * (*src_pixel++); des_r += pixel_weight * (*src_pixel); @@ -1537,7 +1535,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( j++) { int pixel_weight = pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; - const uint8_t* src_pixel = src_scan + j * src_Bpp; + const uint8_t* src_pixel = src_scan + j * src_bytes_per_pixel; uint8_t src_b = 0; uint8_t src_g = 0; uint8_t src_r = 0; @@ -1562,7 +1560,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( des_g += pixel_weight * src_scan[j]; } memset(des_scan, (uint8_t)(des_g >> 16), 3); - des_scan += des_Bpp; + des_scan += dest_bytes_per_pixel; } break; case 8: { int des_r = 0, des_g = 0, des_b = 0; @@ -1578,7 +1576,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( *des_scan++ = (uint8_t)((des_b) >> 16); *des_scan++ = (uint8_t)((des_g) >> 16); *des_scan++ = (uint8_t)((des_r) >> 16); - des_scan += des_Bpp - 3; + des_scan += dest_bytes_per_pixel - 3; } break; case 12: { if (m_pBmpContext) { @@ -1620,7 +1618,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( j++) { int pixel_weight = pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; - const uint8_t* src_pixel = src_scan + j * src_Bpp; + const uint8_t* src_pixel = src_scan + j * src_bytes_per_pixel; des_b += pixel_weight * (*src_pixel++); des_g += pixel_weight * (*src_pixel++); des_r += pixel_weight * (*src_pixel); @@ -1628,7 +1626,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( *des_scan++ = (uint8_t)((des_b) >> 16); *des_scan++ = (uint8_t)((des_g) >> 16); *des_scan++ = (uint8_t)((des_r) >> 16); - des_scan += des_Bpp - 3; + des_scan += dest_bytes_per_pixel - 3; } break; case 10: { uint32_t des_b = 0, des_g = 0, des_r = 0; @@ -1636,7 +1634,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( j++) { int pixel_weight = pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; - const uint8_t* src_pixel = src_scan + j * src_Bpp; + const uint8_t* src_pixel = src_scan + j * src_bytes_per_pixel; uint8_t src_b = 0; uint8_t src_g = 0; uint8_t src_r = 0; @@ -1650,7 +1648,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( *des_scan++ = (uint8_t)((des_b) >> 16); *des_scan++ = (uint8_t)((des_g) >> 16); *des_scan++ = (uint8_t)((des_r) >> 16); - des_scan += des_Bpp - 3; + des_scan += dest_bytes_per_pixel - 3; } break; case 11: { uint32_t des_alpha = 0, des_r = 0, des_g = 0, des_b = 0; @@ -1658,7 +1656,7 @@ void CCodec_ProgressiveDecoder::ReSampleScanline( j++) { int pixel_weight = pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; - const uint8_t* src_pixel = src_scan + j * src_Bpp; + const uint8_t* src_pixel = src_scan + j * src_bytes_per_pixel; pixel_weight = pixel_weight * src_pixel[3] / 255; des_b += pixel_weight * (*src_pixel++); des_g += pixel_weight * (*src_pixel++); |