wm_apple.c

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/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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 2
 * 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, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2007 Blender Foundation.
 * All rights reserved.
 *
 * 
 * Contributor(s): Blender Foundation
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/* note, this file builds on apple-carbon only! */

#include "BKE_context.h"
#include "BKE_global.h"
#include "WM_api.h"

#include <OpenGL/OpenGL.h>
#define __CARBONSOUND__
/* XXX BIG WARNING: carbon.h can not be included in blender code, it conflicts with struct ID */
#define ID ID_
#include <Carbon/Carbon.h>


/* To avoid killing small end comps, we want to allow
blender to start maximised if all the followings are true :
- Renderer is OpenGL capable
- Hardware acceleration
- VRAM > 16 Mo

    We will bail out if VRAM is less than 8Mo
    */
/* bad global, used in wm_window.c to open windows */
int macPrefState = 0;

static int checkAppleVideoCard(void) 
{
    CGLRendererInfoObj rend;
    long theErr;
    unsigned long display_mask;
    long nrend;
    int j;
    long value;
    long maxvram = 0;   /* we get always more than 1 renderer, check one, at least, has 8 Mo */
    
    display_mask = CGDisplayIDToOpenGLDisplayMask (CGMainDisplayID() ); 
    
    theErr = CGLQueryRendererInfo( display_mask, &rend, &nrend);
    if (theErr == 0) {
        theErr = CGLDescribeRenderer (rend, 0, kCGLRPRendererCount, &nrend);
        if (theErr == 0) {
            for (j = 0; j < nrend; j++) {
                theErr = CGLDescribeRenderer (rend, j, kCGLRPVideoMemory, &value); 
                if (value > maxvram)
                    maxvram = value;
                if ((theErr == 0) && (value >= 20000000)) {
                    theErr = CGLDescribeRenderer (rend, j, kCGLRPAccelerated, &value); 
                    if ((theErr == 0) && (value != 0)) {
                        theErr = CGLDescribeRenderer (rend, j, kCGLRPCompliant, &value); 
                        if ((theErr == 0) && (value != 0)) {
                            /*fprintf(stderr,"make it big\n");*/
                            CGLDestroyRendererInfo (rend);
                            macPrefState = 8;
                            return 1;
                        }
                    }
                }
            }
        }
    }
    if (maxvram < 7500000 ) {       /* put a standard alert and quit*/ 
        SInt16 junkHit;
        char  inError[] = "* Not enough VRAM    ";
        char  inText[] = "* blender needs at least 8Mb    ";
        inError[0] = 16;
        inText[0] = 28;
        
        fprintf(stderr, " vram is %li . not enough, aborting\n", maxvram);
        StandardAlert (   kAlertStopAlert, (ConstStr255Param) &inError, (ConstStr255Param)&inText,NULL,&junkHit);
        abort();
    }
    CGLDestroyRendererInfo (rend);
    return 0;
}

static void getMacAvailableBounds(short *top, short *left, short *bottom, short *right) 
{
    Rect outAvailableRect;
    
    GetAvailableWindowPositioningBounds ( GetMainDevice(), &outAvailableRect);
    
    *top = outAvailableRect.top;  
    *left = outAvailableRect.left;
    *bottom = outAvailableRect.bottom; 
    *right = outAvailableRect.right;
}


void wm_set_apple_prefsize(int scr_x, int scr_y)
{
    
    /* first let us check if we are hardware accelerated and with VRAM > 16 Mo */
    
    if (checkAppleVideoCard()) {
        short top, left, bottom, right;
        
        getMacAvailableBounds(&top, &left, &bottom, &right);
        WM_setprefsize(left +10,scr_y - bottom +10,right-left -20,bottom - 64);
        G.windowstate= 0;
        
    } else {
        
        /* 40 + 684 + (headers) 22 + 22 = 768, the powerbook screen height */
        WM_setprefsize(120, 40, 850, 684);
        G.windowstate= 0;
    }
}