/
screen.lisp
283 lines (218 loc) · 8.72 KB
/
screen.lisp
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(in-package :chip8.gui.screen)
(named-readtables:in-readtable :qtools)
;;;; Config -------------------------------------------------------------------
(defparameter *main-window* nil)
(defparameter *scale* 8)
(defparameter *width* (* *scale* 64))
(defparameter *height* (* *scale* 32))
(defparameter *fps* 60)
;;;; OpenGL -------------------------------------------------------------------
(defun initialize-texture (size)
(let ((handle (gl:gen-texture)))
(gl:bind-texture :texture-2d handle)
(gl:tex-image-2d :texture-2d 0 :luminance size size 0 :luminance
:unsigned-byte (cffi:null-pointer))
(gl:tex-parameter :texture-2d :texture-min-filter :nearest)
(gl:tex-parameter :texture-2d :texture-mag-filter :nearest)
(gl:enable :texture-2d)
(gl:bind-texture :texture-2d 0)
handle))
;;;; Main Window --------------------------------------------------------------
(define-widget main-window (QMainWindow)
((debugger :accessor main-debugger :initarg :debugger)
(chip :accessor main-chip :initarg :chip)))
(define-subwidget (main-window screen) (make-instance 'screen)
(setf (screen-chip screen) chip))
(define-initializer (main-window main-setup)
(setf (q+:window-title main-window) "cl-chip8"
(q+:central-widget main-window) screen
(q+:focus-proxy main-window) screen)
(q+:show debugger))
(defun die ()
(setf (chip8::chip-running (main-chip *main-window*)) nil)
(q+:close (main-debugger *main-window*))
(q+:close *main-window*))
;;;; Screen -------------------------------------------------------------------
(define-widget screen (QGLWidget)
((texture :accessor screen-texture)
(chip :accessor screen-chip :initarg :chip)))
(define-initializer (screen screen-setup)
(setf (q+:focus-policy screen) (q+:qt.strong-focus)
(q+:fixed-size screen) (values *width* *height*)))
(define-override (screen "initializeGL") ()
(setf (screen-texture screen) (initialize-texture 64))
(stop-overriding))
(define-subwidget (screen timer) (q+:make-qtimer screen)
(setf (q+:single-shot timer) NIL)
(q+:start timer (round 1000 *fps*)))
(define-slot (screen update) ()
(declare (connected timer (timeout)))
(if (chip8::chip-running chip)
(q+:repaint screen)
(die)))
(defun render-screen (screen painter)
(q+:begin-native-painting painter)
(gl:clear-color 0.0 0.0 0.0 1.0)
(gl:clear :color-buffer-bit)
(gl:bind-texture :texture-2d (screen-texture screen))
(let ((chip (screen-chip screen)))
(when (chip8::chip-video-dirty chip)
(setf (chip8::chip-video-dirty chip) nil)
(gl:tex-sub-image-2d :texture-2d 0 0 0 64 32 :luminance :unsigned-byte
(chip8::chip-video chip))))
(let ((tw 1)
(th 0.5))
(gl:with-primitives :quads
(gl:tex-coord 0 0)
(gl:vertex 0 0)
(gl:tex-coord tw 0)
(gl:vertex *width* 0)
(gl:tex-coord tw th)
(gl:vertex *width* *height*)
(gl:tex-coord 0 th)
(gl:vertex 0 *height*)))
(gl:bind-texture :texture-2d 0)
(q+:end-native-painting painter))
(defun render-debug (screen painter)
(when (-> screen screen-chip chip8::chip-debugger chip8::debugger-paused)
(with-finalizing* ((font (q+:make-qfont "Menlo" 20))
(border-color (q+:make-qcolor 255 255 255))
(fill-color (q+:make-qcolor 0 0 0))
(path (q+:make-qpainterpath))
(pen (q+:make-qpen))
(brush (q+:make-qbrush fill-color)))
(setf (q+:width pen) 1)
(setf (q+:color pen) border-color)
(setf (q+:pen painter) pen)
(setf (q+:brush painter) brush)
(setf (q+:font painter) font)
(setf (q+:weight font) (q+:qfont.black))
(setf (q+:style-hint font) (q+:qfont.type-writer))
; (setf (q+:pen painter) (q+:make-qcolor "#ff0000"))
(q+:add-text path 10 20 font "PAUSED")
(q+:draw-path painter path))))
(define-override (screen paint-event) (ev)
(declare (ignore ev))
(with-finalizing ((painter (q+:make-qpainter screen)))
(render-screen screen painter)
(render-debug screen painter)))
(defun pad-key-for (code)
;; Original Chip-8 Pad → Modern Numpad
;; ┌─┬─┬─┬─┐ ┌─┬─┬─┬─┐
;; │1│2│3│C│ │←│/│*│-│
;; ├─┼─┼─┼─┤ ├─┼─┼─┼─┤
;; │4│5│6│D│ │7│8│9│+│
;; ├─┼─┼─┼─┤ ├─┼─┼─┤ │
;; │7│8│9│E│ │4│5│6│ │
;; ├─┼─┼─┼─┤ ├─┼─┼─┼─┤
;; │A│0│B│F│ │1│2│3│↲│
;; └─┴─┴─┴─┘ ├─┴─┼─┤ │
;; │0 │.│ │
;; └───┴─┴─┘
(qtenumcase code
((q+:qt.key_clear) #x1)
((q+:qt.key_slash) #x2)
((q+:qt.key_asterisk) #x3)
((q+:qt.key_minus) #xC)
((q+:qt.key_7) #x4)
((q+:qt.key_8) #x5)
((q+:qt.key_9) #x6)
((q+:qt.key_plus) #xD)
((q+:qt.key_4) #x7)
((q+:qt.key_5) #x8)
((q+:qt.key_6) #x9)
((q+:qt.key_enter) #xE)
((q+:qt.key_1) #xA)
((q+:qt.key_2) #x0)
((q+:qt.key_3) #xB)
((q+:qt.key_0) #xF)))
(defun pad-key-for (code)
;; Original Chip-8 Pad → Laptop
;; ┌─┬─┬─┬─┐ ┌─┬─┬─┬─┐
;; │1│2│3│C│ │1│2│3│4│
;; ├─┼─┼─┼─┤ ├─┼─┼─┼─┤
;; │4│5│6│D│ │Q│W│E│R│
;; ├─┼─┼─┼─┤ ├─┼─┼─┼─┤
;; │7│8│9│E│ │A│S│D│F│
;; ├─┼─┼─┼─┤ ├─┼─┼─┼─┤
;; │A│0│B│F│ │Z│X│C│V│
;; └─┴─┴─┴─┘ └─┴─┴─┴─┘
;;
(qtenumcase code
((q+:qt.key_1) #x1)
((q+:qt.key_2) #x2)
((q+:qt.key_3) #x3)
((q+:qt.key_4) #xC)
((q+:qt.key_q) #x4)
((q+:qt.key_w) #x5)
((q+:qt.key_e) #x6)
((q+:qt.key_r) #xD)
((q+:qt.key_a) #x7)
((q+:qt.key_s) #x8)
((q+:qt.key_d) #x9)
((q+:qt.key_f) #xE)
((q+:qt.key_z) #xA)
((q+:qt.key_x) #x0)
((q+:qt.key_c) #xB)
((q+:qt.key_v) #xF)))
(define-override (screen key-press-event) (ev)
(let* ((key (q+:key ev))
(pad-key (pad-key-for key)))
(when pad-key
(chip8::keydown chip pad-key)))
(stop-overriding))
(define-override (screen key-release-event) (ev)
(let* ((key (q+:key ev))
(pad-key (pad-key-for key))
(debugger (chip8::chip-debugger chip)))
(if pad-key
(chip8::keyup chip pad-key)
(qtenumcase key
((q+:qt.key_escape) (die))
((q+:qt.key_space) (chip8::debugger-toggle-pause debugger))
((q+:qt.key_f1) (chip8::reset chip))
((q+:qt.key_f7) (chip8::debugger-step debugger))
(t (pr :unknown-key (format nil "~X" key))))))
(stop-overriding))
;;;; Menus --------------------------------------------------------------------
(defun get-rom-path (window)
(let ((path (q+:qfiledialog-get-open-file-name
window
"Load ROM"
(uiop:native-namestring (asdf:system-source-directory :cl-chip8))
"ROM Files (*.rom)")))
(if (string= path "")
nil
path)))
(defun load-rom (main-window)
(when-let* ((rom (get-rom-path main-window)))
(chip8::load-rom (main-chip main-window) rom)))
(define-menu (main-window File)
(:item ("Load ROM..." (ctrl o))
(load-rom main-window))
(:item ("Quit" (ctrl q))
(die)))
(defun set-screen-wrapping (main-window enabled)
(setf (-<> main-window main-chip chip8::chip-screen-wrapping-enabled)
enabled))
(define-menu (main-window Display)
(:menu "Screen Wrapping"
(:item "On" (set-screen-wrapping main-window t))
(:item "Off" (set-screen-wrapping main-window nil))))
(defun set-sound-type (main-window type)
(setf (-<> main-window main-chip chip8::chip-sound-type) type))
(define-menu (main-window Sound)
(:menu "Sound Type"
(:item "Sine" (set-sound-type main-window :sine))
(:item "Square" (set-sound-type main-window :square))
(:item "Sawtooth" (set-sound-type main-window :sawtooth))
(:item "Triangle" (set-sound-type main-window :triangle))))
;;;; Main ---------------------------------------------------------------------
(defun make-main-window (chip)
(make-instance 'main-window
:chip chip
:debugger (chip8.gui.debugger::make-debugger chip)))
(defun run-gui (chip thunk)
(with-main-window
(window (setf *main-window* (make-main-window chip)))
(funcall thunk)))