| Method | Description | |
|---|---|---|
| my_merged_upsampler ( jpeg_decompress_struct cinfo ) | ||
| start_pass ( ) : void |
Initialize for an upsampling pass.
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upsample ( |
| Method | Description | |
|---|---|---|
| FIX ( double x ) : int | ||
| build_bg_ycc_rgb_table ( ) : void |
Initialize tables for BG_YCC->RGB colorspace conversion. This is taken directly from jpeg_color_deconverter; see that file for more info.
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| build_ycc_rgb_table ( ) : void |
Initialize tables for YCbCr->RGB colorspace conversion. This is taken directly from jpeg_color_deconverter; see that file for more info.
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h2v1_merged_upsample ( |
Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
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h2v2_merged_upsample ( |
Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
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merged_1v_upsample ( |
Control routine to do upsampling (and color conversion). The control routine just handles the row buffering considerations. 1:1 vertical sampling case: much easier, never need a spare row.
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merged_2v_upsample ( |
Control routine to do upsampling (and color conversion). The control routine just handles the row buffering considerations. 2:1 vertical sampling case: may need a spare row.
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| public my_merged_upsampler ( jpeg_decompress_struct cinfo ) | ||
| cinfo | jpeg_decompress_struct | |
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public upsample ( |
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| input_buf | ||
| in_row_group_ctr | int | |
| in_row_groups_avail | int | |
| output_buf | byte | |
| out_row_ctr | int | |
| out_rows_avail | int | |
| return | void | |