Go to the source code of this file.
Classes | |
| struct | my_downsampler |
Macros | |
| #define | JPEG_INTERNALS |
Typedefs | |
| typedef my_downsampler * | my_downsample_ptr |
Macro Definition Documentation
◆ JPEG_INTERNALS
| #define JPEG_INTERNALS |
Definition at line 10 of file jcsample.cpp.
Typedef Documentation
◆ my_downsample_ptr
| typedef my_downsampler* my_downsample_ptr |
Definition at line 29 of file jcsample.cpp.
Function Documentation
◆ expand_right_edge()
| expand_right_edge | ( | JSAMPARRAY | image_data, |
| int | num_rows, | ||
| JDIMENSION | input_cols, | ||
| JDIMENSION | output_cols | ||
| ) |
Definition at line 49 of file jcsample.cpp.
References num_rows.
Referenced by fullsize_downsample(), fullsize_smooth_downsample(), h2v1_downsample(), h2v2_downsample(), h2v2_smooth_downsample(), and int_downsample().
◆ fullsize_downsample()
| fullsize_downsample | ( | j_compress_ptr | cinfo, |
| jpeg_component_info * | compptr, | ||
| JSAMPARRAY | input_data, | ||
| JSAMPARRAY | output_data | ||
| ) |
Definition at line 149 of file jcsample.cpp.
References compptr, DCTSIZE, expand_right_edge(), jcopy_sample_rows(), and jpeg_component_info::width_in_blocks.
Referenced by jinit_downsampler().
◆ fullsize_smooth_downsample()
| fullsize_smooth_downsample | ( | j_compress_ptr | cinfo, |
| jpeg_component_info * | compptr, | ||
| JSAMPARRAY | input_data, | ||
| JSAMPARRAY | output_data | ||
| ) |
Definition at line 354 of file jcsample.cpp.
References compptr, DCTSIZE, expand_right_edge(), GETJSAMPLE, jpeg_component_info::v_samp_factor, and jpeg_component_info::width_in_blocks.
Referenced by jinit_downsampler().
◆ h2v1_downsample()
| h2v1_downsample | ( | j_compress_ptr | cinfo, |
| jpeg_component_info * | compptr, | ||
| JSAMPARRAY | input_data, | ||
| JSAMPARRAY | output_data | ||
| ) |
Definition at line 174 of file jcsample.cpp.
References compptr, DCTSIZE, expand_right_edge(), GETJSAMPLE, jpeg_component_info::v_samp_factor, and jpeg_component_info::width_in_blocks.
Referenced by jinit_downsampler().
◆ h2v2_downsample()
| h2v2_downsample | ( | j_compress_ptr | cinfo, |
| jpeg_component_info * | compptr, | ||
| JSAMPARRAY | input_data, | ||
| JSAMPARRAY | output_data | ||
| ) |
Definition at line 211 of file jcsample.cpp.
References compptr, DCTSIZE, expand_right_edge(), GETJSAMPLE, jpeg_component_info::v_samp_factor, and jpeg_component_info::width_in_blocks.
Referenced by jinit_downsampler().
◆ h2v2_smooth_downsample()
| h2v2_smooth_downsample | ( | j_compress_ptr | cinfo, |
| jpeg_component_info * | compptr, | ||
| JSAMPARRAY | input_data, | ||
| JSAMPARRAY | output_data | ||
| ) |
Definition at line 254 of file jcsample.cpp.
References compptr, DCTSIZE, expand_right_edge(), GETJSAMPLE, jpeg_component_info::v_samp_factor, and jpeg_component_info::width_in_blocks.
Referenced by jinit_downsampler().
◆ int_downsample()
| int_downsample | ( | j_compress_ptr | cinfo, |
| jpeg_component_info * | compptr, | ||
| JSAMPARRAY | input_data, | ||
| JSAMPARRAY | output_data | ||
| ) |
Definition at line 102 of file jcsample.cpp.
References compptr, DCTSIZE, expand_right_edge(), GETJSAMPLE, jpeg_component_info::h_samp_factor, jpeg_component_info::v_samp_factor, and jpeg_component_info::width_in_blocks.
Referenced by jinit_downsampler().
◆ jinit_downsampler()
| jinit_downsampler | ( | j_compress_ptr | cinfo | ) |
Definition at line 426 of file jcsample.cpp.
References compptr, ERREXIT, FALSE, fullsize_downsample(), fullsize_smooth_downsample(), h2v1_downsample(), h2v2_downsample(), h2v2_smooth_downsample(), jpeg_component_info::h_samp_factor, int_downsample(), JPOOL_IMAGE, my_downsampler::methods, jpeg_downsampler::need_context_rows, my_downsampler::pub, sep_downsample(), SIZEOF, start_pass_downsample(), TRACEMS, TRUE, and jpeg_component_info::v_samp_factor.
Referenced by jinit_compress_master().
◆ JMETHOD()
| typedef JMETHOD | ( | void | , |
| downsample1_ptr | , | ||
| (j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data) | |||
| ) |
◆ sep_downsample()
| sep_downsample | ( | j_compress_ptr | cinfo, |
| JSAMPIMAGE | input_buf, | ||
| JDIMENSION | in_row_index, | ||
| JSAMPIMAGE | output_buf, | ||
| JDIMENSION | out_row_group_index | ||
| ) |
Definition at line 76 of file jcsample.cpp.
References compptr, input_buf, my_downsampler::methods, output_buf, and jpeg_component_info::v_samp_factor.
Referenced by jinit_downsampler().
◆ start_pass_downsample()
| start_pass_downsample | ( | j_compress_ptr | ) |
Definition at line 37 of file jcsample.cpp.
Referenced by jinit_downsampler().