Searched refs:signed_stride (Results 1 – 2 of 2) sorted by relevance
1046 int signed_stride = stbi__flip_vertically_on_write ? -stride_bytes : stride_bytes; in stbiw__encode_png_line() local1057 case 2: line_buffer[i] = z[i] - z[i-signed_stride]; break; in stbiw__encode_png_line()1058 case 3: line_buffer[i] = z[i] - (z[i-signed_stride]>>1); break; in stbiw__encode_png_line()1059 … case 4: line_buffer[i] = (signed char) (z[i] - stbiw__paeth(0,z[i-signed_stride],0)); break; in stbiw__encode_png_line()1066 case 2: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-signed_stride]; break; in stbiw__encode_png_line()1067 …case 3: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - ((z[i-n] + z[i-signed_stride])>>1); br… in stbiw__encode_png_line()1068 …th*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], z[i-signed_stride], z[i-signed_stride-n]);… in stbiw__encode_png_line()