68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
/*
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* Mr. 4th Dimention - Allen Webster
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* Four Tech
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*
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* public domain -- no warranty is offered or implied; use this code at your own risk
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*
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* 08.11.2015
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*
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* Buffer experiment testing layer, abstract portion
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*
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*/
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// TOP
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#define Buffer_Init_Type cat_4tech(Buffer_Type, _Init)
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#define Buffer_Stringify_Type cat_4tech(Buffer_Type, _Stringify_Loop)
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#define Buffer_Backify_Type cat_4tech(Buffer_Type, _Backify_Loop)
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void
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init_buffer(Buffer_Type *buffer, File_Data file, void *scratch, int scratch_size){
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memzero_4tech(*buffer);
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Buffer_Init_Type init;
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for (init = buffer_begin_init(buffer, file.data, file.size);
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buffer_init_need_more(&init);){
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int page_size = buffer_init_page_size(&init);
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void *page = malloc(page_size);
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buffer_init_provide_page(&init, page, page_size);
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}
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debug_4tech(int result =)
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buffer_end_init(&init, scratch, scratch_size);
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assert_4tech(result);
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}
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void
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measure_starts_widths(Buffer_Type *buffer, float *font_widths){
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int max = 1 << 10;
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buffer->line_starts = (int*)malloc(max*sizeof(int));
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buffer->line_max = max;
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buffer->line_widths = (float*)malloc(max*sizeof(float));
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buffer->widths_max = max;
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Buffer_Measure_Starts state;
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memzero_4tech(state);
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for (;buffer_measure_starts_widths(&state, buffer, font_widths);){
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int max = buffer->line_max;
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int count = state.count;
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int target = count + 1;
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max = target*2;
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int *new_lines = (int*)malloc(max*sizeof(int));
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memcpy_4tech(new_lines, buffer->line_starts, count*sizeof(int));
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free(buffer->line_starts);
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buffer->line_starts = new_lines;
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buffer->line_max = max;
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float *new_widths = (float*)malloc(max*sizeof(float));
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memcpy_4tech(new_widths, buffer->line_widths, count*sizeof(int));
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free(buffer->line_widths);
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buffer->line_widths = new_widths;
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buffer->widths_max = max;
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}
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buffer->line_count = state.count;
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buffer->widths_count = state.count;
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}
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// BOTTOM
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