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Re: SDL2
Posted on: 9/25 18:39   #781
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Joined:
2007/9/11 11:31
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Posts: 5536
@Capehill
What i was fear of , yep.. So , the only solution to do it as done in SDL1 version , as i understand , with that "Screen = SDL_SetVideoMode( 0, 0, 0, SDL_Flags );" , they just recreate window, without destorying context attached to it (or something of that sort ?). Is there anyway it can be done with SDL2 ?

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Re: SDL2
Posted on: 10/13 12:57   #782
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@kas1e

Please try resize-win branch.
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Re: SDL2
Posted on: 10/13 16:50   #783
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Posts: 5536
@Capehill
Yeah ! It works ! Through found little issue. There is test code i use (just press "space" to switch bettwen resizable/non-resizable window as much as you want till cube rotated).

#include <SDL2/SDL.h>
#include <GL/gl.h>
#include <GL/glu.h>

#include <iostream>
using namespace std;

SDL_Window *glWindow;
SDL_GLContext glContext;

const int width = 640;
const int height = 480;

void drawCube(float xrf, float yrf, float zrf);

void init(){

    if ( SDL_Init(SDL_INIT_VIDEO) < 0 ){ 
         cout << "Unable to init SDL, error: " << SDL_GetError() << endl;
         exit(1);
    } 

    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
    SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
    SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 6);
    SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);

    glWindow = SDL_CreateWindow("Cube", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL);
    
    glContext = SDL_GL_CreateContext(glWindow);
    
    if(glWindow == NULL){
        exit(1);
    }

    // init opengl
    
    glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // black
    glClearDepth(1.0);
    glDepthFunc(GL_LESS);
    glEnable(GL_DEPTH_TEST); // enable depth test
    glShadeModel(GL_SMOOTH);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(45.0f, (float) width / (float) height, 0.1f, 100.0f); // set 3d perspective
    glMatrixMode(GL_MODELVIEW); // enable 3d mode

}



#ifdef __WIN32__
int WinMain(HINSTANCE, HINSTANCE, LPSTR, int){
#else
int main(int argc, char *argv[]){
#endif

    init();

    float xrf = 0, yrf = 0, zrf = 0;

    bool running = true;
    int a = 0;

    while(running){ 

    xrf -= 0.5; 
    yrf -= 0.5;
    zrf -= 0.5;

    drawCube(xrf, yrf, zrf); 

      
        SDL_Event event;
      
        while ( SDL_PollEvent(&event) ){
            switch(event.type){
                case SDL_QUIT:
                    running = false;
                break;

                case SDL_KEYDOWN:
                    switch(event.key.keysym.sym){
                        case SDLK_ESCAPE:
                            running = false;
                            break;
                        case SDLK_SPACE:                            
                            if (a == 0) { a = 1; SDL_SetWindowResizable(glWindow,SDL_TRUE); break;}; 
                            if (a == 1) { a = 0; SDL_SetWindowResizable(glWindow,SDL_FALSE); break;};
                        break;
                    }
                break;
            } 
        }      

    }


    if(glContext)
        SDL_GL_DeleteContext(glContext);
        glContext = NULL;
    if(glWindow)
        SDL_DestroyWindow(glWindow);
        glWindow = NULL;

    SDL_Quit();
    return 0;
}


void drawCube(float xrf, float yrf, float zrf){
    
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    
    glLoadIdentity();
    glTranslatef(0.0f, 0.0f, -7.0f);
    
    glRotatef(xrf, 1.0f, 0.0f, 0.0f);
    glRotatef(yrf, 0.0f, 1.0f, 0.0f);
    glRotatef(zrf, 0.0f, 0.0f, 1.0f);
    
    glBegin(GL_QUADS);

    glColor3f(0.0f, 1.0f, 0.0f);
    glVertex3f( 1.0f, 1.0f, -1.0f);
    glVertex3f(-1.0f, 1.0f, -1.0f);
    glVertex3f(-1.0f, 1.0f,  1.0f);
    glVertex3f( 1.0f, 1.0f,  1.0f);
    
    glColor3f(1.0f, 0.5f, 0.0f);
    glVertex3f( 1.0f, -1.0f,  1.0f);
    glVertex3f(-1.0f, -1.0f,  1.0f);
    glVertex3f(-1.0f, -1.0f, -1.0f);
    glVertex3f( 1.0f, -1.0f, -1.0f);
    
    glColor3f(1.0f, 0.0f, 0.0f);
    glVertex3f( 1.0f,  1.0f, 1.0f);
    glVertex3f(-1.0f,  1.0f, 1.0f);
    glVertex3f(-1.0f, -1.0f, 1.0f);
    glVertex3f( 1.0f, -1.0f, 1.0f);

    glColor3f(1.0f,1.0f,0.0f);
    glVertex3f( 1.0f, -1.0f, -1.0f);
    glVertex3f(-1.0f, -1.0f, -1.0f);
    glVertex3f(-1.0f,  1.0f, -1.0f);
    glVertex3f( 1.0f,  1.0f, -1.0f);

    glColor3f(0.0f,0.0f,1.0f);
    glVertex3f(-1.0f,  1.0f,  1.0f);
    glVertex3f(-1.0f,  1.0f, -1.0f);
    glVertex3f(-1.0f, -1.0f, -1.0f);
    glVertex3f(-1.0f, -1.0f,  1.0f);
    
    glColor3f(1.0f,0.0f,1.0f);
    glVertex3f( 1.0f,  1.0f, -1.0f);
    glVertex3f( 1.0f,  1.0f,  1.0f);
    glVertex3f( 1.0f, -1.0f,  1.0f);
    glVertex3f( 1.0f, -1.0f, -1.0f);

    glEnd();
    
    glFlush();
    SDL_GL_SwapWindow(glWindow);
    
}



Now issue is : if you run that example, then drag the window somewhere on workbench and then press "space" , then, together with adding resizable gadget window jump to the middle of the screen.

And that happens after eacht "2 presses" if you move window after each other to some new place : it then place to the place where was previous window.

And that "non remember of window position on screen" happens only after resizable gadget added. When you press "space" from the pure window (while non resizable gadget added), then it stays on the same position.
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Re: SDL2
Posted on: 10/18 18:00   #784
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Joined:
2007/7/14 20:30
From Lothric
Posts: 803
@kas1e

I found a bug, IDCMP_CHANGEWINDOW event was not activated when window wasn't resizable.
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Re: SDL2
Posted on: 10/18 20:05   #785
Home away from home
Joined:
2007/9/11 11:31
From Russia
Posts: 5536
@Capehill
Yeah, all fine now :) and that pretty nice feature should to say :) We can see of course fast close/opening of window but then that probabaly the only way we can do it on os4, and functionality are how it should be, so all good, thanks a bunch

Btw, have a question : should the window when we add/remove resize gadget jump inside of workbench borders ? I.e. i move for example window out of workbench for half of window, then press "space" in my test case (to enable/disable resize gadget), and then window jump inside of workbench borders.

That probabaly expected to be like this ?
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Re: SDL2
Posted on: 10/19 10:26   #786
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Joined:
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Posts: 803
@kas1e

It depends on the WA_AutoAdjust tag, which is implicitly TRUE when window is opened with OpenWindowTags().

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