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Diffstat (limited to 'demos/modules/gwin/gl3d-spin/main.c')
| -rw-r--r-- | demos/modules/gwin/gl3d-spin/main.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/demos/modules/gwin/gl3d-spin/main.c b/demos/modules/gwin/gl3d-spin/main.c new file mode 100644 index 00000000..4a8b25e6 --- /dev/null +++ b/demos/modules/gwin/gl3d-spin/main.c @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2012, 2013, Joel Bodenmann aka Tectu <joel@unormal.org> + * Copyright (c) 2012, 2013, Andrew Hannam aka inmarket + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the <organization> nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "gfx.h" + +/* The handle for our Window */ +GHandle gh; + +static GLfloat Xrot, Xstep; +static GLfloat Yrot, Ystep; +static GLfloat Zrot, Zstep; +static GLfloat Step = 5.0; +static GLfloat Scale = 1.0; +static GLuint Object; + +static GLuint make_object( void ) +{ + GLuint list; + + list = glGenLists( 1 ); + + glNewList( list, GL_COMPILE ); + + glBegin( GL_LINE_LOOP ); + glColor3f( 1.0, 1.0, 1.0 ); + glVertex3f( 1.0, 0.5, -0.4 ); + glColor3f( 1.0, 0.0, 0.0 ); + glVertex3f( 1.0, -0.5, -0.4 ); + glColor3f( 0.0, 1.0, 0.0 ); + glVertex3f( -1.0, -0.5, -0.4 ); + glColor3f( 0.0, 0.0, 1.0 ); + glVertex3f( -1.0, 0.5, -0.4 ); + glEnd(); + + glColor3f( 1.0, 1.0, 1.0 ); + + glBegin( GL_LINE_LOOP ); + glVertex3f( 1.0, 0.5, 0.4 ); + glVertex3f( 1.0, -0.5, 0.4 ); + glVertex3f( -1.0, -0.5, 0.4 ); + glVertex3f( -1.0, 0.5, 0.4 ); + glEnd(); + + glBegin( GL_LINES ); + glVertex3f( 1.0, 0.5, -0.4 ); glVertex3f( 1.0, 0.5, 0.4 ); + glVertex3f( 1.0, -0.5, -0.4 ); glVertex3f( 1.0, -0.5, 0.4 ); + glVertex3f( -1.0, -0.5, -0.4 ); glVertex3f( -1.0, -0.5, 0.4 ); + glVertex3f( -1.0, 0.5, -0.4 ); glVertex3f( -1.0, 0.5, 0.4 ); + glEnd(); + + + glEndList(); + + return list; +} + +static void draw( void ) +{ + glClear( GL_COLOR_BUFFER_BIT ); + + glPushMatrix(); + + glTranslatef( 0.0, 0.0, -10.0 ); + glScalef( Scale, Scale, Scale ); + if (Xstep) { + glRotatef( Xrot, 1.0, 0.0, 0.0 ); + } + else if (Ystep) { + glRotatef( Yrot, 0.0, 1.0, 0.0 ); + } + else { + glRotatef( Zrot, 0.0, 0.0, 1.0 ); + } + + glCallList( Object ); + + glPopMatrix(); + + glFlush(); + gwinRedraw(gh); +} + + +static void spin( void ) +{ + Xrot += Xstep; + Yrot += Ystep; + Zrot += Zstep; + + if (Xrot>=360.0) { + Xrot = Xstep = 0.0; + Ystep = Step; + } + else if (Yrot>=360.0) { + Yrot = Ystep = 0.0; + Zstep = Step; + } + else if (Zrot>=360.0) { + Zrot = Zstep = 0.0; + Xstep = Step; + } + draw(); +} + +int main(void) { + /* Initialize and clear the display */ + gfxInit(); + gdispClear(White); + + /* Create the 3D window */ + { + GWindowInit wi; + + gwinClearInit(&wi); + wi.show = TRUE; wi.x = 8; wi.y = 8; wi.width = gdispGetWidth()-16; wi.height = gdispGetHeight()-16; + gh = gwinGL3DCreate(0, &wi); + } + + /* Init the 3D stuff */ + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 15.0 ); + glMatrixMode(GL_MODELVIEW); + + Object = make_object(); + glCullFace( GL_BACK ); + //glEnable( GL_CULL_FACE ); + glDisable( GL_DITHER ); + glShadeModel( GL_FLAT ); + //glEnable( GL_DEPTH_TEST ); + Xrot = Yrot = Zrot = 0.0; + Xstep = Step; + Ystep = Zstep = 0.0; + + + while(TRUE) { + + // rate control + gfxSleepMilliseconds(10); + + // move and redraw + spin(); + } +} + |