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Diffstat (limited to 'progs/tests/stencil_wrap.c')
-rw-r--r-- | progs/tests/stencil_wrap.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/progs/tests/stencil_wrap.c b/progs/tests/stencil_wrap.c deleted file mode 100644 index 2bafd3204f0..00000000000 --- a/progs/tests/stencil_wrap.c +++ /dev/null @@ -1,259 +0,0 @@ -/* - * (C) Copyright IBM Corporation 2004 - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * on the rights to use, copy, modify, merge, publish, distribute, sub - * license, and/or sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file stencil_wrap.c - * - * Simple test of GL_EXT_stencil_wrap functionality. Four squares are drawn - * with different stencil modes, but all should be rendered with the same - * final color. - * - * \author Ian Romanick <[email protected]> - */ - -#include <stdio.h> -#include <stdlib.h> -#include <GL/glew.h> -#include <GL/glut.h> - -static int Width = 550; -static int Height = 200; -static const GLfloat Near = 5.0, Far = 25.0; - - -static void Display( void ) -{ - GLint max_stencil; - GLint stencil_bits; - unsigned i; - - - glGetIntegerv( GL_STENCIL_BITS, & stencil_bits ); - max_stencil = (1U << stencil_bits) - 1; - printf( "Stencil bits = %u, maximum stencil value = 0x%08x\n", - stencil_bits, max_stencil ); - - glClearStencil( 0 ); - glClearColor( 0.2, 0.2, 0.8, 0 ); - glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT - | GL_STENCIL_BUFFER_BIT ); - - - glPushMatrix(); - - /* This is the "reference" square. - */ - - glDisable(GL_STENCIL_TEST); - glTranslatef(-6.0, 0, 0); - glBegin(GL_QUADS); - glColor3f( 0.5, 0.5, 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - - glEnable(GL_STENCIL_TEST); - - /* Draw the first two squares using the two non-wrap (i.e., saturate) - * modes. - */ - - glStencilFunc(GL_ALWAYS, 0, ~0); - glStencilOp(GL_KEEP, GL_KEEP, GL_INCR); - - glTranslatef(3.0, 0, 0); - glBegin(GL_QUADS); - glColor3f( 0.9, 0.9, 0.9 ); - - for ( i = 0 ; i < (max_stencil + 5) ; i++ ) { - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - } - glEnd(); - - glStencilFunc(GL_EQUAL, max_stencil, ~0); - glBegin(GL_QUADS); - glColor3f( 0.5, 0.5, 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - - glStencilFunc(GL_ALWAYS, 0, ~0); - glStencilOp(GL_KEEP, GL_KEEP, GL_DECR); - - glTranslatef(3.0, 0, 0); - glBegin(GL_QUADS); - glColor3f( 0.9, 0.9, 0.9 ); - - for ( i = 0 ; i < (max_stencil + 5) ; i++ ) { - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - } - glEnd(); - - glStencilFunc(GL_EQUAL, 0, ~0); - glBegin(GL_QUADS); - glColor3f( 0.5, 0.5, 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - - - - /* Draw the last two squares using the two wrap modes. - */ - - glStencilFunc(GL_ALWAYS, 0, ~0); - glStencilOp(GL_KEEP, GL_KEEP, GL_INCR_WRAP); - - glTranslatef(3.0, 0, 0); - glBegin(GL_QUADS); - glColor3f( 0.9, 0.9, 0.9 ); - - for ( i = 0 ; i < (max_stencil + 5) ; i++ ) { - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - } - glEnd(); - - glStencilFunc(GL_EQUAL, 4, ~0); - glBegin(GL_QUADS); - glColor3f( 0.5, 0.5, 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - - - glStencilFunc(GL_ALWAYS, 0, ~0); - glStencilOp(GL_KEEP, GL_KEEP, GL_DECR_WRAP); - - glTranslatef(3.0, 0, 0); - glBegin(GL_QUADS); - glColor3f( 0.9, 0.9, 0.9 ); - - for ( i = 0 ; i < 5 ; i++ ) { - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - } - glEnd(); - - glStencilFunc(GL_EQUAL, (max_stencil - 4), ~0); - glBegin(GL_QUADS); - glColor3f( 0.5, 0.5, 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - - - glPopMatrix(); - - glutSwapBuffers(); -} - - -static void Reshape( int width, int height ) -{ - GLfloat ar = (float) width / (float) height; - Width = width; - Height = height; - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glFrustum( -ar, ar, -1.0, 1.0, Near, Far ); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); - glTranslatef( 0.0, 0.0, -15.0 ); -} - - -static void Key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - switch (key) { - case 27: - exit(0); - break; - } - glutPostRedisplay(); -} - - -static void Init( void ) -{ - const char * const ver_string = (const char *) - glGetString( GL_VERSION ); - - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION = %s\n", ver_string); - - if ( !glutExtensionSupported("GL_EXT_stencil_wrap") - && (atof( ver_string ) < 1.4) ) { - printf("Sorry, this program requires either GL_EXT_stencil_wrap or OpenGL 1.4.\n"); - exit(1); - } - - printf("\nAll 5 squares should be the same color.\n"); - glEnable( GL_BLEND ); -} - - -int main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( Width, Height ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL ); - glutCreateWindow( "GL_EXT_stencil_wrap test" ); - glewInit(); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - Init(); - glutMainLoop(); - return 0; -} |