progs/egl: Port OpenVG lion and sp to eglut.

5 files changed, 59 insertions, 591 deletions

diff --git a/progs/egl/openvg/Makefile b/progs/egl/openvg/Makefile
index 8a4c4d81a4..8ab0e68d87 100644
--- a/progs/egl/openvg/Makefile
+++ b/progs/egl/openvg/Makefile
@@ -3,37 +3,53 @@
 TOP = ../../..
 include $(TOP)/configs/current
 
-VG_LIBS=-lm -pthread -lX11 -lEGL -lOpenVG
+VG_LIBS=-lm -lEGL -lOpenVG
 INCLUDE_DIRS = -I$(TOP)/include
 
+EGLUT_DIR = $(TOP)/progs/egl/eglut
+
+EGLUT_DEMOS = \
+	sp
+
+EGLUT_X11_DEMOS := $(addsuffix _x11,$(EGLUT_DEMOS))
+EGLUT_SCREEN_DEMOS := $(addsuffix _screen,$(EGLUT_DEMOS))
+
 PROGRAMS = \
-        lion \
-        sp
+	lion_x11 \
+	lion_screen
 
 .c.o:
-	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
+	$(CC) -c $(INCLUDE_DIRS) -I$(EGLUT_DIR) $(CFLAGS) $< -o $@
 
 
 
-default: $(PROGRAMS)
+default: $(PROGRAMS) $(EGLUT_X11_DEMOS) $(EGLUT_SCREEN_DEMOS)
 
-lion: lion.o lion-render.o
-	$(CC) $(CFLAGS) lion.o lion-render.o -L$(TOP)/$(LIB_DIR) $(VG_LIBS) -o $@
+lion_x11: lion.o lion-render.o $(EGLUT_DIR)/libeglut-x11.a
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ lion.o lion-render.o \
+		$(VG_LIBS) -L$(EGLUT_DIR) -leglut-x11 -lX11
 
-lion.o: lion.c lion-render.h $(HEADERS)
-	$(CC) -c $(CFLAGS) -I$(TOP)/include lion.c
-lion-render.o: lion-render.c lion-render.h $(HEADERS)
-	$(CC) -c $(CFLAGS) -I$(TOP)/include lion-render.c
+lion_screen: lion.o lion-render.o $(EGLUT_DIR)/libeglut-screen.a
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ lion.o lion-render.o \
+		$(VG_LIBS) -L$(EGLUT_DIR) -leglut-screen
 
 
-sp: sp.c eglcommon.o
-	$(CC) $(INCLUDE_DIRS) $(CFLAGS) $^  -L$(TOP)/$(LIB_DIR) $(LIBS) $(VG_LIBS)  $(APP_LIB_DEPS) -o $@
+$(EGLUT_DIR)/libeglut-x11.a $(EGLUT_DIR)/libeglut-screen.a:
+	@$(MAKE) -C $(EGLUT_DIR)
 
-eglcommon.o: eglcommon.c $(HEADERS)
-	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) eglcommon.c
+# define the rules for EGLUT demos
+define eglut-demo-rule
+$(1)_x11 $(1)_screen: $(1)_%: $(1).o $(EGLUT_DIR)/libeglut-%.a
+endef
+$(foreach demo, $(EGLUT_DEMOS), $(eval $(call eglut-demo-rule,$(demo))))
 
+# build EGLUT demos
+$(EGLUT_X11_DEMOS):
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(VG_LIBS) -L$(EGLUT_DIR) -leglut-$* -lX11
+$(EGLUT_SCREEN_DEMOS):
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(VG_LIBS) -L$(EGLUT_DIR) -leglut-$*
 
 clean:
 	rm -f *.o *~
-	rm -f *.so
-	rm -f $(PROGRAMS)
+	rm -f $(EGLUT_X11_DEMOS) $(EGLUT_SCREEN_DEMOS)
+	@$(MAKE) -C $(EGLUT_DIR) clean
diff --git a/progs/egl/openvg/eglcommon.c b/progs/egl/openvg/eglcommon.c
deleted file mode 100644
index 0316e596c6..0000000000
--- a/progs/egl/openvg/eglcommon.c
+++ /dev/null
@@ -1,289 +0,0 @@
-#include "eglcommon.h"
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <VG/openvg.h>  /* using full OpenGL for now */
-#include <GLES/egl.h>
-
-
-static init_func    init = 0;
-static draw_func    draw = 0;
-static reshape_func reshape = 0;
-static key_func     keyPress = 0;
-static VGint width = 300, height = 300;
-
-
-void set_window_size(int w, int h)
-{
-   width = w;
-   height = h;
-}
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
-              const char *name,
-              int x, int y, int width, int height,
-              Window *winRet,
-              EGLContext *ctxRet,
-              EGLSurface *surfRet)
-{
-   static const EGLint attribs[] = {
-      EGL_RED_SIZE, 1,
-      EGL_GREEN_SIZE, 1,
-      EGL_BLUE_SIZE, 1,
-      EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT,
-      EGL_NONE
-   };
-
-   int scrnum;
-   XSetWindowAttributes attr;
-   unsigned long mask;
-   Window root;
-   Window win;
-   XVisualInfo *visInfo, visTemplate;
-   int num_visuals;
-   EGLContext ctx;
-   EGLConfig config;
-   EGLint num_configs;
-   EGLint vid;
-
-   scrnum = DefaultScreen( x_dpy );
-   root = RootWindow( x_dpy, scrnum );
-
-   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs) ||
-       !num_configs) {
-      printf("Error: couldn't get an EGL visual config\n");
-      exit(1);
-   }
-
-   assert(config);
-
-   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
-      printf("Error: eglGetConfigAttrib() failed\n");
-      exit(1);
-   }
-
-   /* The X window visual must match the EGL config */
-   visTemplate.visualid = vid;
-   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
-   if (!visInfo) {
-      printf("Error: couldn't get X visual\n");
-      exit(1);
-   }
-
-   /* window attributes */
-   attr.background_pixel = 0;
-   attr.border_pixel = 0;
-   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
-   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
-   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
-   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
-		        0, visInfo->depth, InputOutput,
-		        visInfo->visual, mask, &attr );
-
-   /* set hints and properties */
-   {
-      XSizeHints sizehints;
-      sizehints.x = x;
-      sizehints.y = y;
-      sizehints.width  = width;
-      sizehints.height = height;
-      sizehints.flags = USSize | USPosition;
-      XSetNormalHints(x_dpy, win, &sizehints);
-      XSetStandardProperties(x_dpy, win, name, name,
-                              None, (char **)NULL, 0, &sizehints);
-   }
-
-   eglBindAPI(EGL_OPENVG_API);
-
-   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
-   if (!ctx) {
-      printf("Error: eglCreateContext failed\n");
-      exit(1);
-   }
-
-   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
-   if (!*surfRet) {
-      printf("Error: eglCreateWindowSurface failed\n");
-      exit(1);
-   }
-
-   XFree(visInfo);
-
-   *winRet = win;
-   *ctxRet = ctx;
-}
-
-static void
-event_loop(Display *dpy, Window win,
-           EGLDisplay egl_dpy, EGLSurface egl_surf)
-{
-   while (1) {
-      int redraw = 0;
-      XEvent event;
-
-      XNextEvent(dpy, &event);
-
-      switch (event.type) {
-      case Expose:
-         redraw = 1;
-         break;
-      case ConfigureNotify:
-         if (reshape) {
-            width = event.xconfigure.width;
-            height = event.xconfigure.height;
-            reshape(event.xconfigure.width, event.xconfigure.height);
-         }
-         break;
-      case KeyPress:
-      {
-         char buffer[10];
-         int r, code;
-         code = XLookupKeysym(&event.xkey, 0);
-         if (!keyPress || !keyPress(code)) {
-            r = XLookupString(&event.xkey, buffer, sizeof(buffer),
-                              NULL, NULL);
-            if (buffer[0] == 27) {
-               /* escape */
-               return;
-            }
-         }
-      }
-      redraw = 1;
-      break;
-      default:
-         ; /*no-op*/
-      }
-
-      if (redraw) {
-         draw();
-         eglSwapBuffers(egl_dpy, egl_surf);
-      }
-   }
-}
-
-int window_width(void)
-{
-   return width;
-}
-
-int window_height(void)
-{
-   return height;
-}
-
-static void
-usage(void)
-{
-   printf("Usage:\n");
-   printf("  -display <displayname>  set the display to run on\n");
-   printf("  -info                   display OpenGL renderer info\n");
-}
-
-int run(int argc, char **argv,
-        init_func init_f,
-        reshape_func resh_f,
-        draw_func draw_f,
-        key_func key_f)
-{
-   const int winWidth = width, winHeight = height;
-   Display *x_dpy;
-   Window win;
-   EGLSurface egl_surf;
-   EGLContext egl_ctx;
-   EGLDisplay egl_dpy;
-   char *dpyName = NULL;
-   GLboolean printInfo = GL_FALSE;
-   EGLint egl_major, egl_minor;
-   int i;
-   const char *s;
-
-   init = init_f;
-   draw = draw_f;
-   reshape = resh_f;
-   keyPress = key_f;
-
-   for (i = 1; i < argc; i++) {
-      if (strcmp(argv[i], "-display") == 0) {
-         dpyName = argv[i+1];
-         i++;
-      }
-      else if (strcmp(argv[i], "-info") == 0) {
-         printInfo = GL_TRUE;
-      }
-   }
-
-   x_dpy = XOpenDisplay(dpyName);
-   if (!x_dpy) {
-      printf("Error: couldn't open display %s\n",
-	     dpyName ? dpyName : getenv("DISPLAY"));
-      return -1;
-   }
-
-   egl_dpy = eglGetDisplay(x_dpy);
-   if (!egl_dpy) {
-      printf("Error: eglGetDisplay() failed\n");
-      return -1;
-   }
-
-   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
-      printf("Error: eglInitialize() failed\n");
-      return -1;
-   }
-
-   s = eglQueryString(egl_dpy, EGL_VERSION);
-   printf("EGL_VERSION = %s\n", s);
-
-   make_x_window(x_dpy, egl_dpy,
-                 "OpenVG Example", 0, 0, winWidth, winHeight,
-                 &win, &egl_ctx, &egl_surf);
-
-   XMapWindow(x_dpy, win);
-   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
-      printf("Error: eglMakeCurrent() failed\n");
-      return -1;
-   }
-
-   if (printInfo) {
-      printf("VG_RENDERER   = %s\n", (char *) vgGetString(VG_RENDERER));
-      printf("VG_VERSION    = %s\n", (char *) vgGetString(VG_VERSION));
-      printf("VG_VENDOR     = %s\n", (char *) vgGetString(VG_VENDOR));
-   }
-
-   if (init)
-      init();
-
-   /* Set initial projection/viewing transformation.
-    * We can't be sure we'll get a ConfigureNotify event when the window
-    * first appears.
-    */
-   if (reshape)
-      reshape(winWidth, winHeight);
-
-   event_loop(x_dpy, win, egl_dpy, egl_surf);
-
-   eglMakeCurrent(egl_dpy, 0, 0, 0);
-   eglDestroyContext(egl_dpy, egl_ctx);
-   eglDestroySurface(egl_dpy, egl_surf);
-   eglTerminate(egl_dpy);
-
-
-   XDestroyWindow(x_dpy, win);
-   XCloseDisplay(x_dpy);
-
-   return 0;
-}
-
diff --git a/progs/egl/openvg/eglcommon.h b/progs/egl/openvg/eglcommon.h
deleted file mode 100644
index 958dae9f98..0000000000
--- a/progs/egl/openvg/eglcommon.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef EGLCOMMON_H
-#define EGLCOMMON_H
-
-typedef void (*init_func)();
-typedef void (*reshape_func)(int, int);
-typedef void (*draw_func)();
-typedef int  (*key_func)(unsigned key);
-
-
-void set_window_size(int width, int height);
-int window_width(void);
-int window_height(void);
-
-int run(int argc, char **argv,
-        init_func init,
-        reshape_func resh,
-        draw_func draw,
-        key_func key);
-
-#endif
diff --git a/progs/egl/openvg/lion.c b/progs/egl/openvg/lion.c
index adb269bfd8..c5dba4fcea 100644
--- a/progs/egl/openvg/lion.c
+++ b/progs/egl/openvg/lion.c
@@ -1,15 +1,8 @@
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
 #include <VG/openvg.h>
-#include <GLES/egl.h>
+#include <EGL/egl.h>
 
 #include "lion-render.h"
+#include "eglut.h"
 
 static VGint width, height;
 struct lion *lion = 0;
@@ -29,6 +22,7 @@ draw(void)
    lion_render(lion);
 
    ++angle;
+   eglutPostRedisplay();
 }
 
 
@@ -51,239 +45,21 @@ init(void)
 }
 
 
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
-              const char *name,
-              int x, int y, int width, int height,
-              Window *winRet,
-              EGLContext *ctxRet,
-              EGLSurface *surfRet)
-{
-   static const EGLint attribs[] = {
-      EGL_RED_SIZE, 1,
-      EGL_GREEN_SIZE, 1,
-      EGL_BLUE_SIZE, 1,
-      EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT,
-      EGL_NONE
-   };
-
-   int scrnum;
-   XSetWindowAttributes attr;
-   unsigned long mask;
-   Window root;
-   Window win;
-   XVisualInfo *visInfo, visTemplate;
-   int num_visuals;
-   EGLContext ctx;
-   EGLConfig config;
-   EGLint num_configs;
-   EGLint vid;
-
-   scrnum = DefaultScreen( x_dpy );
-   root = RootWindow( x_dpy, scrnum );
-
-   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs) ||
-       !num_configs) {
-      printf("Error: couldn't get an EGL visual config\n");
-      exit(1);
-   }
-
-   assert(config);
-
-   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
-      printf("Error: eglGetConfigAttrib() failed\n");
-      exit(1);
-   }
-
-   /* The X window visual must match the EGL config */
-   visTemplate.visualid = vid;
-   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
-   if (!visInfo) {
-      printf("Error: couldn't get X visual\n");
-      exit(1);
-   }
-
-   /* window attributes */
-   attr.background_pixel = 0;
-   attr.border_pixel = 0;
-   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
-   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
-   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
-   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
-		        0, visInfo->depth, InputOutput,
-		        visInfo->visual, mask, &attr );
-
-   /* set hints and properties */
-   {
-      XSizeHints sizehints;
-      sizehints.x = x;
-      sizehints.y = y;
-      sizehints.width  = width;
-      sizehints.height = height;
-      sizehints.flags = USSize | USPosition;
-      XSetNormalHints(x_dpy, win, &sizehints);
-      XSetStandardProperties(x_dpy, win, name, name,
-                              None, (char **)NULL, 0, &sizehints);
-   }
-
-   eglBindAPI(EGL_OPENVG_API);
-
-   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
-   if (!ctx) {
-      printf("Error: eglCreateContext failed\n");
-      exit(1);
-   }
-
-   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
-   if (!*surfRet) {
-      printf("Error: eglCreateWindowSurface failed\n");
-      exit(1);
-   }
-
-   XFree(visInfo);
-
-   *winRet = win;
-   *ctxRet = ctx;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
-           EGLDisplay egl_dpy, EGLSurface egl_surf)
-{
-   while (1) {
-      XEvent event;
-
-      while (XPending(dpy) > 0) {
-         XNextEvent(dpy, &event);
-
-         switch (event.type) {
-         case Expose:
-            break;
-         case ConfigureNotify:
-            reshape(event.xconfigure.width, event.xconfigure.height);
-            break;
-         case KeyPress:
-         {
-            char buffer[10];
-            int r, code;
-            code = XLookupKeysym(&event.xkey, 0);
-            r = XLookupString(&event.xkey, buffer, sizeof(buffer),
-                              NULL, NULL);
-            if (buffer[0] == 27) {
-               /* escape */
-               return;
-            }
-         }
-         break;
-         default:
-            ; /*no-op*/
-         }
-      }
-
-      draw();
-      eglSwapBuffers(egl_dpy, egl_surf);
-   }
-}
-
-
-static void
-usage(void)
-{
-   printf("Usage:\n");
-   printf("  -display <displayname>  set the display to run on\n");
-   printf("  -info                   display OpenGL renderer info\n");
-}
-
 int
 main(int argc, char *argv[])
 {
-   const int winWidth = 350, winHeight = 450;
-   Display *x_dpy;
-   Window win;
-   EGLSurface egl_surf;
-   EGLContext egl_ctx;
-   EGLDisplay egl_dpy;
-   char *dpyName = NULL;
-   GLboolean printInfo = GL_FALSE;
-   EGLint egl_major, egl_minor;
-   int i;
-   const char *s;
+   eglutInitWindowSize(350, 450);
+   eglutInitAPIMask(EGLUT_OPENVG_BIT);
+   eglutInit(argc, argv);
 
-   for (i = 1; i < argc; i++) {
-      if (strcmp(argv[i], "-display") == 0) {
-         dpyName = argv[i+1];
-         i++;
-      }
-      else if (strcmp(argv[i], "-info") == 0) {
-         printInfo = GL_TRUE;
-      }
-      else {
-         usage();
-         return -1;
-      }
-   }
+   eglutCreateWindow("Lion Example");
 
-   x_dpy = XOpenDisplay(dpyName);
-   if (!x_dpy) {
-      printf("Error: couldn't open display %s\n",
-	     dpyName ? dpyName : getenv("DISPLAY"));
-      return -1;
-   }
-
-   egl_dpy = eglGetDisplay(x_dpy);
-   if (!egl_dpy) {
-      printf("Error: eglGetDisplay() failed\n");
-      return -1;
-   }
-
-   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
-      printf("Error: eglInitialize() failed\n");
-      return -1;
-   }
-
-   s = eglQueryString(egl_dpy, EGL_VERSION);
-   printf("EGL_VERSION = %s\n", s);
-
-   make_x_window(x_dpy, egl_dpy,
-                 "Lion Example", 0, 0, winWidth, winHeight,
-                 &win, &egl_ctx, &egl_surf);
-
-   XMapWindow(x_dpy, win);
-   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
-      printf("Error: eglMakeCurrent() failed\n");
-      return -1;
-   }
-
-   if (printInfo) {
-      printf("VG_RENDERER   = %s\n", (char *) vgGetString(VG_RENDERER));
-      printf("VG_VERSION    = %s\n", (char *) vgGetString(VG_VERSION));
-      printf("VG_VENDOR     = %s\n", (char *) vgGetString(VG_VENDOR));
-   }
+   eglutReshapeFunc(reshape);
+   eglutDisplayFunc(draw);
 
    init();
 
-   /* Set initial projection/viewing transformation.
-    * We can't be sure we'll get a ConfigureNotify event when the window
-    * first appears.
-    */
-   reshape(winWidth, winHeight);
-
-   event_loop(x_dpy, win, egl_dpy, egl_surf);
-
-   eglDestroyContext(egl_dpy, egl_ctx);
-   eglDestroySurface(egl_dpy, egl_surf);
-   eglTerminate(egl_dpy);
-
-
-   XDestroyWindow(x_dpy, win);
-   XCloseDisplay(x_dpy);
+   eglutMainLoop();
 
    return 0;
 }
diff --git a/progs/egl/openvg/sp.c b/progs/egl/openvg/sp.c
index 424ec47d69..a20c0a3b4e 100644
--- a/progs/egl/openvg/sp.c
+++ b/progs/egl/openvg/sp.c
@@ -1,13 +1,9 @@
-#include "eglcommon.h"
-
 #include <VG/openvg.h>
 #include <VG/vgu.h>
-#include <stdio.h>
 #include <math.h>
-#include <stdlib.h>
 #include <string.h>
 
-#include <X11/keysym.h>
+#include "eglut.h"
 
 #define ELEMENTS(x) (sizeof(x)/sizeof((x)[0]))
 
@@ -475,36 +471,13 @@ reshape(int w, int h)
 {
 }
 
-static int
-key_press(unsigned key)
-{
-    switch(key) {
-    case XK_Right:
-
-        break;
-    case XK_Left:
-        break;
-    case XK_Up:
-        break;
-    case XK_Down:
-        break;
-    case 'a':
-        break;
-    case 's':
-        break;
-    default:
-        break;
-    }
-    return VG_FALSE;
-}
-
 static void
 draw(void)
 {
    VGint i;
    VGfloat save_matrix[9];
 
-   vgClear(0, 0, window_width(), window_height());
+   vgClear(0, 0, eglutGetWindowWidth(), eglutGetWindowHeight());
 
    vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
    vgLoadIdentity();
@@ -532,6 +505,18 @@ draw(void)
 
 int main(int argc, char **argv)
 {
-    set_window_size(400, 400);
-    return run(argc, argv, init, reshape, draw, key_press);
+   eglutInitWindowSize(400, 400);
+   eglutInitAPIMask(EGLUT_OPENVG_BIT);
+   eglutInit(argc, argv);
+
+   eglutCreateWindow("sp");
+
+   eglutReshapeFunc(reshape);
+   eglutDisplayFunc(draw);
+
+   init();
+
+   eglutMainLoop();
+
+   return 0;
 }