move tests to unit_tests to clean up individual files

adds start of font characters

gemmaimgui/src/bin/gemmaimgui.rs

@@ -33,6 +33,7 @@ fn main() {
 
     support::simple_init(file!(), move |_, ui| {
         let current_time = Instant::now();
+        let mut num_cycles = 0;
 
         // Key Checks
         let down_keys = ui.io().keys_down;
@@ -58,9 +59,10 @@ fn main() {
             }
         }
 
-        system.tick();
-
-
+        while Instant::now().duration_since(current_time).as_millis() < 16 && num_cycles < 1000 {
+            system.tick();
+            num_cycles += 1;
+        }
         // GUI Parts
         if ui_state.show_video {
             GemmaImguiSupport::video_display(&system.state(), &ui_state, ui);

gemmaimgui/src/bin/support/emmagui_support.rs

@@ -16,7 +16,7 @@ use crate::ImGuiUiState;
 use crate::support::gui_file_list::GuiFileList;
 use super::ui_state;
 
-const ROM_ROOT: &str = "/home/tmerritt/Projects/trevors_chip8_toy/resources/octoroms";
+const ROM_ROOT: &str = "/home/tmerritt/Projects/trevors_chip8_toy/resources/roms";
 
 pub struct GemmaImguiSupport {}
 
@@ -43,23 +43,37 @@ impl GemmaImguiSupport {
 
     pub fn video_display(system_to_control: &Chip8Computer, gui_state: &ImGuiUiState, ui: &Ui) {
         // draw area size
+        let (width, height) = system_to_control.video_memory.get_resolution();
         let draw_area_size = ui.io().display_size;
       //  println!("DRAW_AREA_SIZE = {}x{}", draw_area_size[0], draw_area_size[1]);
-        let cell_width = ((draw_area_size[0] as i32 / 64) * 6) / 10;
-        let cell_height = ((draw_area_size[1] as i32 / 32) * 6) / 10;
+        let cell_width = ((draw_area_size[0] as i32 / width) * 6) / 10;
+        let cell_height = ((draw_area_size[1] as i32 / height) * 6) / 10;
 
         ui.window(format!("Display {cell_width}x{cell_height}"))
             .size([300.0, 300.0], Condition::Once)
             .build(|| {
-                let (width, height) = system_to_control.video_memory.get_resolution();
                 let origin = ui.cursor_screen_pos();
                 let fg = ui.get_window_draw_list();
                 if (system_to_control.video_memory.is_highres()) {
                     ui.text("High Def Video here");
-
+                    for current_row in 0..=height {
+                        let y_offset = origin[1] as i32 + (current_row * cell_height);
+                        for current_column in 0..=width {
+                            let x_offset = origin[0] as i32 + (current_column * cell_width);
+                            let current_origin = [x_offset as f32, y_offset as f32];
+                            let current_limit = [(x_offset + cell_width) as f32, (y_offset + cell_height) as f32];
+                            let memory_offset = (current_row * width + current_column) as u16;
+                            let to_render = system_to_control.video_memory.peek(memory_offset);
+                            let color: ImColor32 = if to_render {
+                                gui_state.on_colour
+                            } else {
+                                gui_state.off_colour
+                            };
+                            fg.add_rect_filled_multicolor(current_origin, current_limit, color, color, color, color);
+                        }
+                    }
                 } else {
                     ui.text("StdDef video here.");
-
                     for current_row in 0..=height {
                         let y_offset = origin[1] as i32 + (current_row * cell_height);
                         for current_column in 0..=width {
@@ -88,7 +102,7 @@ impl GemmaImguiSupport {
                 ui.text(format!("Step {:04x}", system_to_control.num_cycles()).as_str());
 
                 /* ROM Lister */
-                let new_filename = GuiFileList::display_path(PathBuf::from("/home/tmerritt/Projects/trevors_chip8_toy/resources/octoroms/"), &gui_state.filename_to_load, ui);
+                let new_filename = GuiFileList::display_path(PathBuf::from("/home/tmerritt/Projects/trevors_chip8_toy/resources/roms/"), &gui_state.filename_to_load, ui);
                 if !new_filename.is_empty() {
                     if new_filename != gui_state.filename_to_load {
                         debug!("NEW FILENAME SELECTED -> {new_filename}");
@@ -98,7 +112,7 @@ impl GemmaImguiSupport {
                         let mut buffer = Vec::new();
                         debug!("PREPARING TO LOAD {}", gui_state.filename_to_load);
                         // let mut input_file = File::open(Path::new("./1-chip8-logo.ch8")).expect("put 1-chip8-logo.ch8 in this directory");
-                        let mut input_file = File::open(Path::new(&("/home/tmerritt/Projects/trevors_chip8_toy/resources/octoroms/".to_string() + &gui_state.filename_to_load))).expect("put 1-chip8-logo.ch8 in this directory");
+                        let mut input_file = File::open(Path::new(&("/home/tmerritt/Projects/trevors_chip8_toy/resources/roms/".to_string() + &gui_state.filename_to_load))).expect("put 1-chip8-logo.ch8 in this directory");
                         input_file.read_to_end(&mut buffer).expect("unable to read file");
                         system_to_control.load_bytes_to_system_memory((&*buffer).into());
                     }