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- /* nextdemo.m*/
-
- /* Demo of NEXTSTEP Mesa rendering */
-
- /*
- * See Mesa/include/GL/osmesa.h for documentation of the OSMesa functions.
- *
- * If you want to render BIG images you'll probably have to increase
- * MAX_WIDTH and MAX_HEIGHT in src/config.h.
- *
- * This program is in the public domain.
- *
- * Brian Paul
- *
- * NEXTSTEP output provided by Pascal Thibaudeau
- * pthibaud@frbdx11.cribx1.u-bordeaux.fr
- */
-
- #import <dpsclient/wraps.h>
- #import <appkit/Application.h>
- #import <appkit/Window.h>
- #import <appkit/Menu.h>
- #import <appkit/View.h>
- #import <appkit/color.h>
- #import <appkit/NXBitmapImageRep.h>
-
- #include <stdio.h>
- #include <stdlib.h>
- #include "GL/osmesa.h"
-
- #define WIDTH 480
- #define HEIGHT 480
-
- static void render_image()
- {
- GLfloat light_ambient[] = { 0.0, 0.0, 0.0, 1.0 };
- GLfloat light_diffuse[] = { 1.0, 1.0, 1.0, 1.0 };
- GLfloat light_specular[] = { 1.0, 1.0, 1.0, 1.0 };
- GLfloat light_position[] = { 1.0, 1.0, 1.0, 0.0 };
- GLfloat red_mat[] = { 1.0, 0.0, 0.0, 0.5 };
- GLfloat green_mat[] = { 0.0, 1.0, 0.0, 0.5 };
- GLfloat blue_mat[] = { 0.0, 0.0, 1.0, 0.5};
-
- glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
- glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
- glLightfv(GL_LIGHT0, GL_POSITION, light_position);
-
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glEnable(GL_DEPTH_TEST);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(-2.5, 2.5, -2.5, 2.5, -10.0, 10.0);
- glMatrixMode(GL_MODELVIEW);
-
- glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
- glPushMatrix();
- glRotatef(20.0, 1.0, 0.0, 0.0);
-
- glPushMatrix();
- glTranslatef(-0.75, 0.5, 0.0);
- glRotatef(90.0, 1.0, 0.0, 0.0);
- glMaterialfv( GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red_mat );
- auxSolidTorus(0.275, 0.85);
- glPopMatrix();
-
- glPushMatrix();
- glTranslatef(-0.75, -0.5, 0.0);
- glRotatef(270.0, 1.0, 0.0, 0.0);
- glMaterialfv( GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, green_mat );
- auxSolidCone(1.0, 2.0);
- glPopMatrix();
-
- glPushMatrix();
- glTranslatef(0.75, 0.0, -1.0);
- glMaterialfv( GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, blue_mat );
- auxSolidSphere(1.0);
- glPopMatrix();
-
- glPopMatrix();
- }
-
-
-
- int main( int argc, char *argv[] )
- {
- OSMesaContext ctx;
- void *buffer;
- id myWindow, myView, myMenu, image;
- char name[50];
- NXRect GR;
- NXPoint position;
-
- NXApp=[Application new];
-
- /* Create an RGBA-mode context */
- ctx = OSMesaCreateContext( GL_RGBA, NULL );
-
- /* Allocate the image buffer */
- buffer = malloc( WIDTH * HEIGHT * 4 );
-
- /* Bind the buffer to the context and make it current */
- OSMesaMakeCurrent( ctx, buffer, GL_UNSIGNED_BYTE, WIDTH, HEIGHT );
-
- image = [ [ NXBitmapImageRep alloc]
- initData: buffer
- pixelsWide: WIDTH
- pixelsHigh: HEIGHT
- bitsPerSample: 8
- samplesPerPixel: 4
- hasAlpha: YES
- isPlanar: NO
- colorSpace: 2
- bytesPerRow: WIDTH*4
- bitsPerPixel: 32];
-
- NXSetRect(&GR,100,100,WIDTH,HEIGHT);
-
- myWindow = [ [ Window alloc]
- initContent: &GR
- style: NX_TITLEDSTYLE
- backing: NX_BUFFERED
- buttonMask: NX_MINIATURIZEBUTTONMASK
- defer: NO];
-
- sprintf(name, "Graphic Rectangle %d", getpid());
-
- myView = [ [ View alloc] initFrame:&GR];
- [myView setOpaque: NO];
- [myView setDrawOrigin: -WIDTH: -HEIGHT];
- [myView rotate: 180.0];
-
- myMenu = [ [ Menu alloc] initTitle: "NeXT-OpenGL"];
- [myMenu addItem: "Quit" action: @selector(terminate:) keyEquivalent: 'q'];
- [myMenu sizeToFit];
-
- [myWindow setTitle: name];
- [myWindow display];
- [myWindow setContentView: myView];
- [myWindow makeKeyAndOrderFront: nil];
-
- [NXApp setMainMenu: myMenu];
-
- [myView lockFocus];
-
- /* here is the Mesa call */
- render_image();
-
- [image draw];
- [image free];
-
- [myWindow flushWindow];
- [myView unlockFocus];
-
- /* free the image buffer */
- free( buffer );
-
- /* destroy the context */
- OSMesaDestroyContext( ctx );
-
- [NXApp run];
- [NXApp free];
-
- return 0;
- }
-