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27 lines
946 B
C++
27 lines
946 B
C++
#include "closure.h"
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namespace cairocanvas
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{
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void JpegClosure::init_destination(j_compress_ptr cinfo) {
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JpegClosure* closure = (JpegClosure*)cinfo->client_data;
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closure->vec.resize(PAGE_SIZE);
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closure->jpeg_dest_mgr->next_output_byte = &closure->vec[0];
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closure->jpeg_dest_mgr->free_in_buffer = closure->vec.size();
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}
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boolean JpegClosure::empty_output_buffer(j_compress_ptr cinfo) {
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JpegClosure* closure = (JpegClosure*)cinfo->client_data;
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size_t currentSize = closure->vec.size();
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closure->vec.resize(currentSize * 1.5);
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closure->jpeg_dest_mgr->next_output_byte = &closure->vec[currentSize];
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closure->jpeg_dest_mgr->free_in_buffer = closure->vec.size() - currentSize;
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return true;
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}
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void JpegClosure::term_destination(j_compress_ptr cinfo) {
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JpegClosure* closure = (JpegClosure*)cinfo->client_data;
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size_t finalSize = closure->vec.size() - closure->jpeg_dest_mgr->free_in_buffer;
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closure->vec.resize(finalSize);
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}
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} |