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videochargen
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frame compression on line basis 

it also takes in account lines of other frames
This commit is contained in:
giomba 2021-08-12 22:14:53 +02:00
parent bca7bde569
commit f98e83b8fa
1 changed files with 23 additions and 9 deletions
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32
frame.cpp
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@ -6,6 +6,7 @@
#include <iostream>
#include <fstream>
#include <sstream>
#include <cstring>
enum ExitStatus {
BAD_ARGUMENT = 1,
@ -30,15 +31,6 @@ int main(int argc, char** argv) {
jump_table << "#include \"macro.h\"" << std::endl;
jump_table << "#include <avr/io.h>" << std::endl;
for (int current_image = 0; current_image < images; ++current_image) {
jump_table << ".global line_jump_table_" << current_image << std::endl;
jump_table << "line_jump_table_" << current_image << ":" << std::endl;
for (int i = 0; i < 256; ++i) {
jump_table << '\t' << "jmp line_" << current_image << "_" << i << std::endl;
}
}
char** image = new char*[images];
for (int current_image = 0; current_image < images; ++current_image) {
@ -87,7 +79,29 @@ int main(int argc, char** argv) {
infile.close();
jump_table << ".global line_jump_table_" << current_image << std::endl;
jump_table << "line_jump_table_" << current_image << ":" << std::endl;
for (int y = 0; y < height; ++y) {
int diff = 1;
for (int other_image = 0; other_image <= current_image; ++other_image) {
for (int other_y = 0; other_y < height && other_y < y; ++other_y) {
diff = memcmp(&(image[current_image][y * width + 0]), &(image[other_image][other_y * width + 0]), width);
if (diff == 0) {
jump_table << '\t' << "jmp line_" << other_image << "_" << other_y << std::endl;
goto nested_loop_end;
}
}
}
nested_loop_end:
if (diff == 0)
continue;
jump_table << '\t' << "jmp line_" << current_image << "_" << y << std::endl;
asm_code << "line_" << current_image << "_" << y << ":" << std::endl;
int count = 0;