From: jsancho Date: Sun, 8 May 2011 08:04:39 +0000 (+0000) Subject: Mapeo de funciones SDL y GL casi completo, empezando subsistemas básicos X-Git-Url: https://git.jsancho.org/?a=commitdiff_plain;h=9fef3eaa3b432926d3af475fb2a673c76131c779;p=gacela.git Mapeo de funciones SDL y GL casi completo, empezando subsistemas básicos --- diff --git a/src/Makefile.am b/src/Makefile.am index e050389..ee0ed74 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1,4 +1,4 @@ bin_PROGRAMS = gacela gacela_SOURCES = gacela.c gacela_SDL.c gacela_GL.c -gacela_LDADD = -lSDL -lSDL_image -lSDL_mixer -lGL -lguile -lltdl -lgmp -lcrypt -lm -lltdl +gacela_LDADD = -lSDL -lSDL_image -lSDL_mixer -lGL -lGLU -lguile -lltdl -lgmp -lcrypt -lm -lltdl diff --git a/src/gacela.c b/src/gacela.c index c36d0a1..d46c495 100644 --- a/src/gacela.c +++ b/src/gacela.c @@ -27,6 +27,12 @@ register_functions (void* data) return NULL; } +void +load_scheme_files (void) +{ + scm_c_primitive_load ("gacela.scm"); +} + int main (int argc, char *argv[]) { @@ -35,5 +41,6 @@ main (int argc, char *argv[]) scm_c_eval_string ("(set-repl-prompt! \"gacela>\")"); scm_c_eval_string ("(use-modules (ice-9 readline))"); scm_c_eval_string ("(activate-readline)"); + load_scheme_files (); scm_shell (argc, argv); } diff --git a/src/gacela.scm b/src/gacela.scm new file mode 100644 index 0000000..db6a827 --- /dev/null +++ b/src/gacela.scm @@ -0,0 +1,305 @@ +;;; Gacela, a GNU Guile extension for fast games development +;;; Copyright (C) 2009 by Javier Sancho Fernandez +;;; +;;; This program is free software: you can redistribute it and/or modify +;;; it under the terms of the GNU General Public License as published by +;;; the Free Software Foundation, either version 3 of the License, or +;;; (at your option) any later version. +;;; +;;; This program is distributed in the hope that it will be useful, +;;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with this program. If not, see . + + +;;; Default values for Gacela +(define *width-screen* 640) +(define *height-screen* 480) +(define *bpp-screen* 32) +(define *frames-per-second* 20) + +;;; SDL Initialization Subsystem +(let (initialized) + + (define (init-sdl) + (cond ((null initialized) (set! initialized (SDL_Init SDL_INIT_EVERYTHING))) + (#t initialized))) + + (define (quit-sdl) + (set! initialized (SDL_Quit)))) + + +;;; Video Subsystem +(let (screen flags (current-width *width-screen*) (current-height *height-screen*) current-bpp) + + (defun init-video-mode (&key (width current-width) (height current-height) (bpp *bpp-screen*)) + (cond ((null screen) + (init-sdl) + (SDL_GL_SetAttribute SDL_GL_DOUBLEBUFFER 1) + (setq flags (+ SDL_OPENGL SDL_GL_DOUBLEBUFFER SDL_HWPALETTE SDL_RESIZABLE + (if (= (getf (SDL_GetVideoInfo) :hw_available) 0) SDL_SWSURFACE SDL_HWSURFACE) + (if (= (getf (SDL_GetVideoInfo) :blit_hw) 0) 0 SDL_HWACCEL))) + (setq screen (SDL_SetVideoMode width height bpp flags)) + (init-GL) + (resize-screen-GL width height) + (setq current-width width current-height height current-bpp bpp)) + (t t))) + + (defun resize-screen (width height &optional (bpp current-bpp)) + (cond (screen (setq screen (SDL_SetVideoMode width height bpp flags)) + (resize-screen-GL width height))) + (setq current-width width current-height height)) + + (defun apply-mode-change () + (resize-screen-GL current-width current-height)) + + (defun quit-video-mode () + (setq screen nil))) + +(defun set-2d-mode () + (cond ((not (3d-mode?)) + (init-video-mode) + (glDisable GL_DEPTH_TEST) + (apply-mode-change)))) + +(defun set-3d-mode () + (cond ((3d-mode?) + (init-video-mode) + (glClearDepth 1) + (glEnable GL_DEPTH_TEST) + (glDepthFunc GL_LEQUAL) + (apply-mode-change)))) + +(defun 3d-mode? () + (eq (getf (get-game-properties) :mode) '3d)) + +(defun init-GL () + (glShadeModel GL_SMOOTH) + (glClearColor 0 0 0 0) +; (glClearDepth 1) +; (glDepthFunc GL_LEQUAL) +; (glEnable GL_BLEND) +; (glBlendFunc GL_SRC_ALPHA GL_ONE) + (glHint GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST) + t) + +(defun init-lighting () + (init-video-mode) + (glEnable GL_LIGHTING)) + +(defun resize-screen-GL (width height) + (glViewPort 0 0 width height) + (glMatrixMode GL_PROJECTION) + (glLoadIdentity) + (cond ((3d-mode?) (let ((ratio (if (= height 0) width (/ width height)))) + (gluPerspective 45 ratio 0.1 100))) ;0.1 + (t (let* ((w (/ width 2)) (-w (neg w)) (h (/ height 2)) (-h (neg h))) + (glOrtho -w w -h h 0 1)))) + (glMatrixMode GL_MODELVIEW) + (glLoadIdentity) + t)) + +(let ((current-color '(1 1 1 1))) + (defun get-current-color () + current-color) + + (defun set-current-color (red green blue &optional (alpha 1)) + (setq current-color (list red green blue alpha)) + (glColor4f red green blue alpha))) + +(defun load-image (image-file &key (transparent-color nil)) + (init-video-mode) + (let ((loaded-image (IMG_Load image-file))) + (cond ((= loaded-image 0) nil) + (t (let ((optimized-image (SDL_DisplayFormat loaded-image))) + (SDL_FreeSurface loaded-image) + (cond ((= optimized-image 0) nil) + ((null transparent-color) optimized-image) + (t (SDL_SetColorKey optimized-image + SDL_SRCCOLORKEY + (SDL_MapRGB (surface-format optimized-image) + (car transparent-color) + (cadr transparent-color) + (caddr transparent-color))) + optimized-image))))))) + + +;;; Audio Subsystem +(let ((audio nil)) + + (defun init-audio () + (cond ((null audio) (progn (init-sdl) (setq audio (Mix_OpenAudio 22050 MIX_DEFAULT_FORMAT 2 4096)))) + (t audio))) + + (defun quit-audio () + (setq audio (Mix_CloseAudio)))) + + +;;; Resources Manager +(defstruct resource plist constructor destructor time) + +(defun make-resource-texture (&key filename min-filter mag-filter) + `(:type texture :filename ,filename :min-filter ,min-filter :mag-filter ,mag-filter)) + +(defun make-resource-font (&key filename encoding) + `(:type font :filename ,filename :enconding ,encoding)) + +(defun make-resource-sound (&key filename) + `(:type sound :filename ,filename)) + +(defun make-resource-music (&key filename) + `(:type music :filename ,filename)) + +(defmacro get-rtime (key) + `(resource-time (gethash ,key resources-table))) + +(defmacro get-rplist (key) + `(resource-plist (gethash ,key resources-table))) + +(defmacro get-rconstructor (key) + `(resource-constructor (gethash ,key resources-table))) + +(defmacro get-rdestructor (key) + `(resource-destructor (gethash ,key resources-table))) + +(let ((resources-table (make-hash-table :test 'equal)) + (expiration-time 50000)) + + (defun set-expiration-time (new-time) + (setq expiration-time new-time)) + + (defun set-resource (key plist constructor destructor &key static) + (expire-resources) + (setf (gethash key resources-table) + (make-resource :plist plist + :constructor constructor + :destructor destructor + :time (if static t (SDL_GetTicks))))) + + (defun get-resource (key) + (cond ((null (gethash key resources-table)) nil) + (t (let ((time (get-rtime key))) + (cond ((null time) (funcall (get-rconstructor key))) + ((numberp time) (setf (get-rtime key) (SDL_GetTicks)))) + (get-rplist key))))) + + (defun free-resource (key) + (funcall (get-rdestructor key)) + (setf (get-rtime key) nil)) + + (defun expire-resource (key &optional (now (SDL_GetTicks))) + (let ((time (get-rtime key))) + (cond ((and (numberp time) (> (- now time) expiration-time)) (free-resource key))))) + + (defun expire-resources () + (maphash (lambda (key res) (expire-resource key)) resources-table)) + + (defun free-all-resources () + (maphash (lambda (key res) (free-resource key)) resources-table))) + + +;;; Connection with Gacela Clients +(let (server-socket clients) + (defun start-server (port) + (cond ((null server-socket) (setq server-socket (si::socket port :server #'check-connections))))) + + (defun check-connections () + (cond ((and server-socket (listen server-socket)) (setq clients (cons (si::accept server-socket) clients))))) + + (defun eval-from-clients () + (labels ((eval-clients (cli-socks) + (cond (cli-socks + (let ((cli (car cli-socks))) + (cond ((si::listen cli) + (secure-block cli (eval (read cli))) + (si::close cli) + (eval-clients (cdr cli-socks))) + (t + (cons cli (eval-clients (cdr cli-socks)))))))))) + (setq clients (eval-clients clients)))) + + (defun stop-server () + (cond (server-socket (si::close server-socket) (setq server-socket nil))) + (cond (clients + (labels ((close-clients (cli-socks) + (si::close (car cli-socks)) + (close-clients (cdr cli-socks)))) + (close-clients clients)) + (setq clients nil))))) + + +;;; GaCeLa Functions +(let (time (time-per-frame (/ 1000.0 *frames-per-second*))) + (defun set-frames-per-second (fps) + (setq time-per-frame (/ 1000.0 fps))) + + (defun init-frame-time () + (setq time (SDL_GetTicks))) + + (defun delay-frame () + (let ((frame-time (- (SDL_GetTicks) time))) + (cond ((< frame-time time-per-frame) + (SDL_Delay (- time-per-frame frame-time))))))) + + +(let ((ptitle "") (pwidth *width-screen*) (pheight *height-screen*) (pbpp *bpp-screen*) (pfps *frames-per-second*) (pmode '2d)) + (defun set-game-properties (&key title width height bpp fps mode) + (init-video-mode) + (when title (progn (setq ptitle title) (SDL_WM_SetCaption title ""))) + (when (or width height bpp) + (progn + (when width (setq pwidth width)) + (when height (setq pheight height)) + (when bpp (setq pbpp bpp)) + (resize-screen pwidth pheight pbpp))) + (when fps (progn (setq pfps fps) (set-frames-per-second fps))) + (when mode (progn (setq pmode mode) (if (eq mode '3d) (set-3d-mode) (set-2d-mode)))) + (get-game-properties)) + + (defun get-game-properties () + (list :title ptitle :width pwidth :height pheight :bpp pbpp :fps pfps :mode pmode))) + + +(defmacro run-game (&body code) + `(let ((game-function (lambda () ,@code))) + (init-video-mode) + (set-game-code game-function) + (cond ((not (game-running?)) + (game-loop))))) + +(let (running game-code) + (defun game-loop () + (setq running t) + (do () ((quit?)) + (init-frame-time) + (check-connections) + (eval-from-clients) + (process-events) + (cond ((not (quit?)) + (glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT)) + (to-origin) + (refresh-active-objects) + (when (functionp game-code) (funcall game-code)) + (render-objects) + (SDL_GL_SwapBuffers) + (delay-frame)))) + (setq running nil)) + + (defun game-running? () + running) + + (defun set-game-code (game-function) + (setq game-code game-function))) + +(defun quit-game () + (free-all-resources) + (quit-audio) + (quit-video-mode) +; (quit-all-mobs) + (kill-all-objects) +; (clear-events) +; (quit-events) + (quit-sdl)) diff --git a/src/gacela_GL.c b/src/gacela_GL.c index daf75f4..c261fa2 100644 --- a/src/gacela_GL.c +++ b/src/gacela_GL.c @@ -27,6 +27,270 @@ gacela_glBegin (SCM mode) return SCM_UNSPECIFIED; } +SCM +gacela_glClear (SCM mask) +{ + glClear (scm_to_int (mask)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glClearColor (SCM red, SCM green, SCM blue, SCM alpha) +{ + glClearColor (scm_to_double (red), scm_to_double (green), scm_to_double (blue), scm_to_double (alpha)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glClearDepth (SCM depth) +{ + glClearDepth (scm_to_double (depth)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glColor3f (SCM red, SCM green, SCM blue) +{ + glColor3f (scm_to_double (red), scm_to_double (green), scm_to_double (blue)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glColor4f (SCM red, SCM green, SCM blue, SCM alpha) +{ + glColor4f (scm_to_double (red), scm_to_double (green), scm_to_double (blue), scm_to_double (alpha)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glDepthFunc (SCM func) +{ + glDepthFunc (scm_to_int (func)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glEnable (SCM cap) +{ + glEnable (scm_to_int (cap)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glDisable (SCM cap) +{ + glDisable (scm_to_int (cap)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glEnd (void) +{ + glEnd (); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glHint (SCM target, SCM mode) +{ + glHint (scm_to_int (target), scm_to_int (mode)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glLoadIdentity (void) +{ + glLoadIdentity (); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glMatrixMode (SCM mode) +{ + glMatrixMode (scm_to_int (mode)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glRotatef (SCM angle, SCM x, SCM y, SCM z) +{ + glRotatef (scm_to_double (angle), scm_to_double (x), scm_to_double (y), scm_to_double (z)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glShadeModel (SCM mode) +{ + glShadeModel (scm_to_int (mode)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glTranslatef (SCM x, SCM y, SCM z) +{ + glTranslatef (scm_to_double (x), scm_to_double (y), scm_to_double (z)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glVertex2f (SCM x, SCM y) +{ + glVertex2f (scm_to_double (x), scm_to_double (y)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glVertex3f (SCM x, SCM y, SCM z) +{ + glVertex3f (scm_to_double (x), scm_to_double (y), scm_to_double (z)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glViewport (SCM x, SCM y, SCM width, SCM height) +{ + glViewport (scm_to_int (x), scm_to_int (y), scm_to_int (width), scm_to_int (height)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glGenTextures (SCM n) +{ + SCM textures; + int nint = scm_to_int (n); + GLuint text[nint]; + int i; + + textures = scm_list_n (SCM_UNDEFINED); + glGenTextures (nint, &text[0]); + + for (i = nint - 1; i >= 0; i--) { + textures = scm_cons (scm_from_int (text[i]), textures); + } + + return textures; +} + +SCM +gacela_glDeleteTextures (SCM n, SCM textures) +{ + int nint = scm_to_int (n); + GLuint text[nint]; + int i; + + for (i = 0; i < nint; i++) { + text[i] = scm_to_int (scm_list_ref (textures, scm_from_int (i))); + } + + glDeleteTextures (nint, &text[0]); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glBindTexture (SCM target, SCM texture) +{ + glBindTexture (scm_to_int (target), scm_to_int (texture)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glTexImage2D (SCM target, SCM level, SCM internalFormat, SCM width, SCM height, SCM border, SCM format, SCM type, SCM pixels) +{ + glTexImage2D (scm_to_int (target), scm_to_int (level), scm_to_int (internalFormat), scm_to_int (width), \ + scm_to_int (height), scm_to_int (border), scm_to_int (format), scm_to_int (type), \ + (GLvoid *)scm_to_int (pixels)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glTexParameteri (SCM target, SCM pname, SCM param) +{ + glTexParameteri (scm_to_int (target), scm_to_int (pname), scm_to_int (param)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glTexCoord2f (SCM s, SCM t) +{ + glTexCoord2f (scm_to_double (s), scm_to_double (t)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glLightfv (SCM light, SCM pname, SCM params) +{ + int n = scm_to_int (scm_length (params)); + GLfloat gl_params[n]; + int i; + + for (i = 0; i < n; i++) { + gl_params[i] = scm_to_double (scm_list_ref (params, scm_from_int (i))); + } + + glLightfv (scm_to_int (light), scm_to_int (pname), gl_params); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glNormal3f (SCM nx, SCM ny, SCM nz) +{ + glNormal3f (scm_to_double (nx), scm_to_double (ny), scm_to_double (nz)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glBlendFunc (SCM sfactor, SCM dfactor) +{ + glBlendFunc (scm_to_int (sfactor), scm_to_int (dfactor)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glOrtho (SCM left, SCM right, SCM bottom, SCM top, SCM near_val, SCM far_val) +{ + glOrtho (scm_to_double (left), scm_to_double (right), scm_to_double (bottom), scm_to_double (top), \ + scm_to_double (near_val), scm_to_double (far_val)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glPushMatrix (void) +{ + glPushMatrix (); + return SCM_UNSPECIFIED; +} + +SCM +gacela_glPopMatrix (void) +{ + glPopMatrix (); + return SCM_UNSPECIFIED; +} + +SCM +gacela_gluPerspective (SCM fovy, SCM aspect, SCM zNear, SCM zFar) +{ + gluPerspective (scm_to_double (fovy), scm_to_double (aspect), scm_to_double (zNear), scm_to_double (zFar)); + return SCM_UNSPECIFIED; +} + +SCM +gacela_gluBuild2DMipmaps (SCM target, SCM internalFormat, SCM width, SCM height, SCM format, SCM type, SCM data) +{ + return scm_from_int (gluBuild2DMipmaps (scm_to_int (target), scm_to_int (internalFormat), scm_to_int (width), \ + scm_to_int (height), scm_to_int (format), scm_to_int (type), \ + (void *)scm_to_int (data))); +} + +SCM +gacela_gluLookAt (SCM eyeX, SCM eyeY, SCM eyeZ, SCM centerX, SCM centerY, SCM centerZ, SCM upX, SCM upY, SCM upZ) +{ + gluLookAt (scm_to_double (eyeX), scm_to_double (eyeY), scm_to_double (eyeZ), \ + scm_to_double (centerX), scm_to_double (centerY), scm_to_double (centerZ), \ + scm_to_double (upX), scm_to_double (upY), scm_to_double (upZ)); + return SCM_UNSPECIFIED; +} + void* GL_register_functions (void* data) @@ -95,6 +359,40 @@ GL_register_functions (void* data) scm_c_define_gsubr ("glBegin", 1, 0, 0, gacela_glBegin); + scm_c_define_gsubr ("glClear", 1, 0, 0, gacela_glClear); + scm_c_define_gsubr ("glClearColor", 4, 0, 0, gacela_glClearColor); + scm_c_define_gsubr ("glClearDepth", 1, 0, 0, gacela_glClearDepth); + scm_c_define_gsubr ("glColor3f", 3, 0, 0, gacela_glColor3f); + scm_c_define_gsubr ("glColor4f", 4, 0, 0, gacela_glColor4f); + scm_c_define_gsubr ("glDepthFunc", 1, 0, 0, gacela_glDepthFunc); + scm_c_define_gsubr ("glEnable", 1, 0, 0, gacela_glEnable); + scm_c_define_gsubr ("glDisable", 1, 0, 0, gacela_glDisable); + scm_c_define_gsubr ("glEnd", 0, 0, 0, gacela_glEnd); + scm_c_define_gsubr ("glHint", 2, 0, 0, gacela_glHint); + scm_c_define_gsubr ("glLoadIdentity", 0, 0, 0, gacela_glLoadIdentity); + scm_c_define_gsubr ("glMatrixMode", 1, 0, 0, gacela_glMatrixMode); + scm_c_define_gsubr ("glRotatef", 4, 0, 0, gacela_glRotatef); + scm_c_define_gsubr ("glShadeModel", 1, 0, 0, gacela_glShadeModel); + scm_c_define_gsubr ("glTranslatef", 3, 0, 0, gacela_glTranslatef); + scm_c_define_gsubr ("glVertex2f", 2, 0, 0, gacela_glVertex2f); + scm_c_define_gsubr ("glVertex3f", 3, 0, 0, gacela_glVertex3f); + scm_c_define_gsubr ("glViewport", 4, 0, 0, gacela_glViewport); + scm_c_define_gsubr ("glGenTextures", 1, 0, 0, gacela_glGenTextures); + scm_c_define_gsubr ("glDeleteTextures", 2, 0, 0, gacela_glDeleteTextures); + scm_c_define_gsubr ("glBindTexture", 2, 0, 0, gacela_glBindTexture); + scm_c_define_gsubr ("glTexImage2D", 9, 0, 0, gacela_glTexImage2D); + scm_c_define_gsubr ("glTexParameteri", 3, 0, 0, gacela_glTexParameteri); + scm_c_define_gsubr ("glTexCoord2f", 2, 0, 0, gacela_glTexCoord2f); + scm_c_define_gsubr ("glLightfv", 3, 0, 0, gacela_glLightfv); + scm_c_define_gsubr ("glNormal3f", 3, 0, 0, gacela_glNormal3f); + scm_c_define_gsubr ("glBlendFunc", 2, 0, 0, gacela_glBlendFunc); + scm_c_define_gsubr ("glOrtho", 6, 0, 0, gacela_glOrtho); + scm_c_define_gsubr ("glPushMatrix", 0, 0, 0, gacela_glPushMatrix); + scm_c_define_gsubr ("glPopMatrix", 0, 0, 0, gacela_glPopMatrix); + + scm_c_define_gsubr ("gluPerspective", 4, 0, 0, gacela_gluPerspective); + scm_c_define_gsubr ("gluBuild2DMipmaps", 7, 0, 0, gacela_gluBuild2DMipmaps); + scm_c_define_gsubr ("gluLookAt", 9, 0, 0, gacela_gluLookAt); return NULL; }