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This commit is contained in:
Edouard Dupin 2011-10-17 18:05:15 +02:00
parent a98717f6a6
commit d02bd1915e
4 changed files with 347 additions and 251 deletions
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3
Makefile
View File

@ -121,7 +121,8 @@ MAKE_DEPENDENCE=Makefile
###############################################################################
# tiny XML (extern OPEN Sources) :
CXXFILES = Main.cpp
CXXFILES = Main.cpp \
ewol.cpp
###############################################################################

266
Sources/Main.cpp
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@ -5,7 +5,7 @@
* @author Edouard DUPIN
* @date 13/10/2011
* @par Project
* Edn
* ewol
*
* @par Copyright
* Copyright 2011 Edouard DUPIN, all right reserved
@ -22,225 +22,13 @@
*******************************************************************************
*/
#include "ewol.h"
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <math.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
#include <GL/glx.h>
#include <X11/Xatom.h>
#include <X11/extensions/Xrender.h>
// need to run xcompmgr to have transparency
static Atom del_atom;
static Display *Xdisplay;
static GLXFBConfig fbconfig;
static Window WindowHandle, GLXWindowHandle;
static int width, height;
/**
* @brief
*/
static Bool WaitForMapNotify(Display *d, XEvent *e, char *arg)
{
return (e->type == MapNotify) && (e->xmap.window == *(Window*)arg);
}
/**
* @brief Create the X11 windows
*/
static void createX11Window()
{
XEvent event;
int x,y, attr_mask;
XSizeHints hints;
XWMHints *StartupState;
XTextProperty textprop;
XSetWindowAttributes attr;
static char *title = (char*)"FTB's little OpenGL example";
// Connect to the X server
Xdisplay = XOpenDisplay(NULL);
if (NULL == Xdisplay) {
fprintf(stderr, "Couldn't connect to X server\n");
exit(-1);
}
int Xscreen = DefaultScreen(Xdisplay);
Window Xroot = RootWindow(Xdisplay, Xscreen);
int numfbconfigs;
int VisualData[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
GLX_DOUBLEBUFFER, True,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_ALPHA_SIZE, 1,
GLX_DEPTH_SIZE, 1,
None
};
XVisualInfo *visual;
GLXFBConfig *fbconfigs = glXChooseFBConfig(Xdisplay, Xscreen, VisualData, &numfbconfigs);
for(int i = 0; i<numfbconfigs; i++) {
visual = glXGetVisualFromFBConfig(Xdisplay, fbconfigs[i]);
if(!visual) {
continue;
}
XRenderPictFormat * pictFormat = XRenderFindVisualFormat(Xdisplay, visual->visual);
if(!pictFormat) {
continue;
}
if(pictFormat->direct.alphaMask > 0) {
fbconfig = fbconfigs[i];
break;
}
}
// Create a colormap - only needed on some X clients, eg. IRIX
attr.colormap = XCreateColormap(Xdisplay, Xroot, visual->visual, AllocNone);;
attr.border_pixel = 0;
attr.event_mask = StructureNotifyMask
| EnterWindowMask
| LeaveWindowMask
| ExposureMask
| ButtonPressMask
| ButtonReleaseMask
| OwnerGrabButtonMask
| KeyPressMask
| KeyReleaseMask;
// set no background at the gui
attr.background_pixmap = None;
// select internal attribute
attr_mask = CWBackPixmap | CWColormap | CWBorderPixel | CWEventMask;
// Create the window
width = DisplayWidth(Xdisplay, DefaultScreen(Xdisplay))/2;
height = DisplayHeight(Xdisplay, DefaultScreen(Xdisplay))/2;
x=width/2;
y=height/4;
// Real create of the window
WindowHandle = XCreateWindow(Xdisplay,
Xroot,
x, y, width, height,
1,
visual->depth,
InputOutput,
visual->visual,
attr_mask, &attr);
if( !WindowHandle ) {
fprintf(stderr, "Couldn't create the window\n");
exit(-1);
}
/* Configure it... (ok, ok, this next bit isn't "minimal") */
textprop.value = (unsigned char*)title;
textprop.encoding = XA_STRING;
textprop.format = 8;
textprop.nitems = strlen(title);
hints.x = x;
hints.y = y;
hints.width = width;
hints.height = height;
hints.flags = USPosition|USSize;
StartupState = XAllocWMHints();
StartupState->initial_state = NormalState;
StartupState->flags = StateHint;
XSetWMProperties(Xdisplay, WindowHandle,&textprop, &textprop,/* Window title/icon title*/
NULL, 0,/* Argv[], argc for program*/
&hints, /* Start position/size*/
StartupState,/* Iconised/not flag */
NULL);
XFree(StartupState);
/* Open it, wait for it to appear */
XMapWindow(Xdisplay, WindowHandle);
XIfEvent(Xdisplay, &event, WaitForMapNotify, (char*)&WindowHandle);
// Set the kill atom so we get a message when the user tries to close the window
if ((del_atom = XInternAtom(Xdisplay, "WM_DELETE_WINDOW", 0)) != None) {
XSetWMProtocols(Xdisplay, WindowHandle, &del_atom, 1);
}
}
/**
* @brief Create a special context to manage transparency of the windows inside X11 system :
*/
static void createTheRenderContext()
{
/* See if we can do OpenGL on this visual */
int dummy;
if (!glXQueryExtension(Xdisplay, &dummy, &dummy)) {
fprintf(stderr, "OpenGL not supported by X server\n");
exit(-1);
}
/* Create the OpenGL rendering context */
GLXContext RenderContext = glXCreateNewContext(Xdisplay, fbconfig, GLX_RGBA_TYPE, 0, True);
if (!RenderContext) {
fprintf(stderr, "Failed to create a GL context\n");
exit(-1);
}
GLXWindowHandle = glXCreateWindow(Xdisplay, fbconfig, WindowHandle, NULL);
/* Make it current */
if (!glXMakeContextCurrent(Xdisplay, GLXWindowHandle, GLXWindowHandle, RenderContext)) {
fprintf(stderr, "glXMakeCurrent failed for window\n");
exit(-1);
}
}
/**
* @brief draw the current diplay of the screen
*/
static void Draw(void)
{
// set the size of the open GL system
glViewport(0,0,width,height);
// Clear the screen with transparency ...
glClearColor(0.750, 0.750, 0.750, 0.5);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0., (float)width, 0., (float)height, 1., 20.);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0, 0, -5);
glBegin(GL_QUADS);
glColor3f(1., 0., 0.); glVertex3f( .25*(float)width, .25*(float)height, 0.);
glColor3f(0., 1., 0.); glVertex3f( .75*(float)width, .25*(float)height, 0.);
glColor3f(0., 0., 1.); glVertex3f( .75*(float)width, .75*(float)height, 0.);
glColor3f(1., 1., 0.); glVertex3f( .25*(float)width, .75*(float)height, 0.);
glEnd();
printf("redraw (%d,%d)\n", width, height);
/* Swapbuffers */
glXSwapBuffers(Xdisplay, GLXWindowHandle);
}
/**
* @brief main input fonction
@ -248,45 +36,23 @@ static void Draw(void)
int main(int argc, char *argv[])
{
printf("==================================================\n");
printf("== Configuration (Start)\n");
printf("== ewol:: Init()\n");
printf("==================================================\n");
createX11Window();
ewol::Init(argc, argv);
// create the windows
//ewol::Windows myWindows(ewol::WINDOWS_MAIN);
createTheRenderContext();
printf("==================================================\n");
printf("== Configuration (End)\n");
printf("== ewol:: Run()\n");
printf("==================================================\n");
ewol::Run();
printf("==================================================\n");
printf("== Main Process (Start)\n");
printf("== ewol:: UnInit()\n");
printf("==================================================\n");
// main cycle
while(1) {
XEvent event;
XConfigureEvent *xc;
// main X boucle :
while (XPending(Xdisplay)) {
XNextEvent(Xdisplay, &event);
switch (event.type)
{
case ClientMessage:
// Request close of the current client :
if (event.xclient.data.l[0] == del_atom) {
// TODO : Clear all internal elements ...
exit(0);
}
break;
case ConfigureNotify:
xc = &(event.xconfigure);
width = xc->width;
height = xc->height;
break;
}
}
Draw();
usleep( 100000 );
}
ewol::UnInit();
return 0;
}

292
Sources/ewol.cpp Normal file
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@ -0,0 +1,292 @@
/**
*******************************************************************************
* @file ewol.cpp
* @brief Main code of ewol (sources)
* @author Edouard DUPIN
* @date 17/10/2011
* @par Project
* ewol
*
* @par Copyright
* Copyright 2011 Edouard DUPIN, all right reserved
*
* This software is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY.
*
* Licence summary :
* You can modify and redistribute the sources code and binaries.
* You can send me the bug-fix
*
* Term of the licence in in the file licence.txt.
*
*******************************************************************************
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <math.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
#include <GL/glx.h>
#include <X11/Xatom.h>
#include <X11/extensions/Xrender.h>
#include "ewol.h"
// need to run xcompmgr to have transparency
static Atom del_atom;
static Display *Xdisplay;
static GLXFBConfig fbconfig;
static Window WindowHandle, GLXWindowHandle;
static int width, height;
/**
* @brief
*/
static Bool WaitForMapNotify(Display *d, XEvent *e, char *arg)
{
return (e->type == MapNotify) && (e->xmap.window == *(Window*)arg);
}
/**
* @brief Create the X11 windows
*/
static void createX11Window()
{
XEvent event;
int x,y, attr_mask;
XSizeHints hints;
XWMHints *StartupState;
XTextProperty textprop;
XSetWindowAttributes attr;
static char *title = (char*)"FTB's little OpenGL example";
// Connect to the X server
Xdisplay = XOpenDisplay(NULL);
if (NULL == Xdisplay) {
fprintf(stderr, "Couldn't connect to X server\n");
exit(-1);
}
int Xscreen = DefaultScreen(Xdisplay);
Window Xroot = RootWindow(Xdisplay, Xscreen);
int numfbconfigs;
int VisualData[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
GLX_DOUBLEBUFFER, True,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_ALPHA_SIZE, 1,
GLX_DEPTH_SIZE, 1,
None
};
XVisualInfo *visual;
GLXFBConfig *fbconfigs = glXChooseFBConfig(Xdisplay, Xscreen, VisualData, &numfbconfigs);
for(int i = 0; i<numfbconfigs; i++) {
visual = glXGetVisualFromFBConfig(Xdisplay, fbconfigs[i]);
if(!visual) {
continue;
}
XRenderPictFormat * pictFormat = XRenderFindVisualFormat(Xdisplay, visual->visual);
if(!pictFormat) {
continue;
}
if(pictFormat->direct.alphaMask > 0) {
fbconfig = fbconfigs[i];
break;
}
}
// Create a colormap - only needed on some X clients, eg. IRIX
attr.colormap = XCreateColormap(Xdisplay, Xroot, visual->visual, AllocNone);;
attr.border_pixel = 0;
attr.event_mask = StructureNotifyMask
| EnterWindowMask
| LeaveWindowMask
| ExposureMask
| ButtonPressMask
| ButtonReleaseMask
| OwnerGrabButtonMask
| KeyPressMask
| KeyReleaseMask;
// set no background at the gui
attr.background_pixmap = None;
// select internal attribute
attr_mask = CWBackPixmap | CWColormap | CWBorderPixel | CWEventMask;
// Create the window
width = DisplayWidth(Xdisplay, DefaultScreen(Xdisplay))/2;
height = DisplayHeight(Xdisplay, DefaultScreen(Xdisplay))/2;
x=width/2;
y=height/4;
// Real create of the window
WindowHandle = XCreateWindow(Xdisplay,
Xroot,
x, y, width, height,
1,
visual->depth,
InputOutput,
visual->visual,
attr_mask, &attr);
if( !WindowHandle ) {
fprintf(stderr, "Couldn't create the window\n");
exit(-1);
}
/* Configure it... (ok, ok, this next bit isn't "minimal") */
textprop.value = (unsigned char*)title;
textprop.encoding = XA_STRING;
textprop.format = 8;
textprop.nitems = strlen(title);
hints.x = x;
hints.y = y;
hints.width = width;
hints.height = height;
hints.flags = USPosition|USSize;
StartupState = XAllocWMHints();
StartupState->initial_state = NormalState;
StartupState->flags = StateHint;
XSetWMProperties(Xdisplay, WindowHandle,&textprop, &textprop,/* Window title/icon title*/
NULL, 0,/* Argv[], argc for program*/
&hints, /* Start position/size*/
StartupState,/* Iconised/not flag */
NULL);
XFree(StartupState);
/* Open it, wait for it to appear */
XMapWindow(Xdisplay, WindowHandle);
XIfEvent(Xdisplay, &event, WaitForMapNotify, (char*)&WindowHandle);
// Set the kill atom so we get a message when the user tries to close the window
if ((del_atom = XInternAtom(Xdisplay, "WM_DELETE_WINDOW", 0)) != None) {
XSetWMProtocols(Xdisplay, WindowHandle, &del_atom, 1);
}
}
/**
* @brief Create a special context to manage transparency of the windows inside X11 system :
*/
static void createTheRenderContext()
{
/* See if we can do OpenGL on this visual */
int dummy;
if (!glXQueryExtension(Xdisplay, &dummy, &dummy)) {
fprintf(stderr, "OpenGL not supported by X server\n");
exit(-1);
}
/* Create the OpenGL rendering context */
GLXContext RenderContext = glXCreateNewContext(Xdisplay, fbconfig, GLX_RGBA_TYPE, 0, True);
if (!RenderContext) {
fprintf(stderr, "Failed to create a GL context\n");
exit(-1);
}
GLXWindowHandle = glXCreateWindow(Xdisplay, fbconfig, WindowHandle, NULL);
/* Make it current */
if (!glXMakeContextCurrent(Xdisplay, GLXWindowHandle, GLXWindowHandle, RenderContext)) {
fprintf(stderr, "glXMakeCurrent failed for window\n");
exit(-1);
}
}
/**
* @brief draw the current diplay of the screen
*/
static void Draw(void)
{
// set the size of the open GL system
glViewport(0,0,width,height);
// Clear the screen with transparency ...
glClearColor(0.750, 0.750, 0.750, 0.5);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0., (float)width, 0., (float)height, 1., 20.);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0, 0, -5);
glBegin(GL_QUADS);
glColor3f(1., 0., 0.); glVertex3f( .25*(float)width, .25*(float)height, 0.);
glColor3f(0., 1., 0.); glVertex3f( .75*(float)width, .25*(float)height, 0.);
glColor3f(0., 0., 1.); glVertex3f( .75*(float)width, .75*(float)height, 0.);
glColor3f(1., 1., 0.); glVertex3f( .25*(float)width, .75*(float)height, 0.);
glEnd();
printf("redraw (%d,%d)\n", width, height);
/* Swapbuffers */
glXSwapBuffers(Xdisplay, GLXWindowHandle);
}
void ewol::Init(int argc, char *argv[])
{
createX11Window();
createTheRenderContext();
}
void ewol::Run(void)
{
// main cycle
while(1) {
XEvent event;
XConfigureEvent *xc;
// main X boucle :
while (XPending(Xdisplay)) {
XNextEvent(Xdisplay, &event);
switch (event.type)
{
case ClientMessage:
// Request close of the current client :
if (event.xclient.data.l[0] == del_atom) {
// TODO : Clear all internal elements ...
exit(0);
}
break;
case ConfigureNotify:
xc = &(event.xconfigure);
width = xc->width;
height = xc->height;
break;
}
}
Draw();
usleep( 100000 );
}
}
void ewol::UnInit(void)
{
}

37
Sources/ewol.h Normal file
View File

@ -0,0 +1,37 @@
/**
*******************************************************************************
* @file ewol.h
* @brief Main include of ewol (header)
* @author Edouard DUPIN
* @date 17/10/2011
* @par Project
* ewol
*
* @par Copyright
* Copyright 2011 Edouard DUPIN, all right reserved
*
* This software is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY.
*
* Licence summary :
* You can modify and redistribute the sources code and binaries.
* You can send me the bug-fix
*
* Term of the licence in in the file licence.txt.
*
*******************************************************************************
*/
#ifndef __EWOL_H__
#define __EWOL_H__
namespace ewol {
void Init(int argc, char *argv[]);
void Run(void);
void UnInit(void);
};
#endif