107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 09.02.2016
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*
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* Shared system functions
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*
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*/
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// TOP
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#if !defined(FCODER_SYSTEM_SHARED_CPP)
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#define FCODER_SYSTEM_SHARED_CPP
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//
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// Standard implementation of file system stuff based on the file track layer.
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//
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internal i32
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system_get_binary_path_string(String *out){
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out->size = system_get_4ed_path(out->str, out->memory_size);
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return(out->size);
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}
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internal void
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init_shared_vars(){
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umem scratch_size = KB(128);
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void *scratch_memory = system_memory_allocate(scratch_size);
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shared_vars.scratch = make_part(scratch_memory, (i32)scratch_size);
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umem font_scratch_size = MB(4);
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void *font_scratch_memory = system_memory_allocate(font_scratch_size);
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shared_vars.font_scratch = make_part(font_scratch_memory, (i32)font_scratch_size);
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umem pixel_scratch_size = MB(4);
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void *pixel_scratch_memory = system_memory_allocate(pixel_scratch_size);
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shared_vars.pixel_scratch = make_part(pixel_scratch_memory, (i32)pixel_scratch_size);
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}
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//
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// General shared pieces
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//
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internal void
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sysshared_filter_real_files(char **files, i32 *file_count){
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i32 end = *file_count;
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i32 i = 0, j = 0;
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for (; i < end; ++i){
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if (system_file_can_be_made((u8*)files[i])){
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files[j] = files[i];
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++j;
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}
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}
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*file_count = j;
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}
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// HACK(allen): Get rid of this now!?
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internal Partition
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sysshared_scratch_partition(i32 size){
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void *data = system_memory_allocate((umem)size);
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Partition part = make_part(data, size);
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return(part);
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}
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internal void
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sysshared_partition_grow(Partition *part, i32 new_size){
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Assert(part->pos == 0);
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void *data = 0;
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if (new_size > part->max){
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data = system_memory_allocate((umem)new_size);
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memcpy(data, part->base, part->pos);
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system_memory_free(part->base, part->max);
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part->base = (char*)data;
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part->max = new_size;
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}
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}
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internal void*
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sysshared_push_block(Partition *part, i32 size){
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void *result = push_array(part, i8, size);
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if (result == 0){
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sysshared_partition_grow(part, size + part->max);
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result = push_array(part, i8, size);
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}
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return(result);
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}
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internal b32
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sysshared_to_binary_path(String *out_filename, char *filename){
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b32 translate_success = 0;
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i32 max = out_filename->memory_size;
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i32 size = out_filename->size = system_get_4ed_path(out_filename->str, out_filename->memory_size);
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if (size > 0 && size < max-1){
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out_filename->size = size;
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if (append_sc(out_filename, filename) && terminate_with_null(out_filename)){
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translate_success = 1;
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}
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}
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return(translate_success);
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}
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#endif
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// BOTTOM
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