diff options
Diffstat (limited to 'progs/tests/blendsquare.c')
-rw-r--r-- | progs/tests/blendsquare.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/progs/tests/blendsquare.c b/progs/tests/blendsquare.c deleted file mode 100644 index 07806fc758d..00000000000 --- a/progs/tests/blendsquare.c +++ /dev/null @@ -1,180 +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 blendsquare.c - * - * Simple test of GL_NV_blend_square functionality. Four squares are drawn - * with different blending 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 = 400; -static int Height = 200; -static const GLfloat Near = 5.0, Far = 25.0; - - -static void Display( void ) -{ - glClearColor(0.2, 0.2, 0.8, 0); - glClear( GL_COLOR_BUFFER_BIT ); - - glPushMatrix(); - - glTranslatef(-4.5, 0, 0); - glBlendFunc( GL_ONE, GL_ZERO ); - glBegin(GL_QUADS); - glColor3f( 0.5 * 0.5, 0.5 * 0.5, 0.5 * 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - - glTranslatef(3.0, 0, 0); - glBlendFunc( GL_ONE, GL_ZERO ); - glBegin(GL_QUADS); - glColor3f( 0.5, 0.5, 0.5 ); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - glBlendFunc( GL_DST_COLOR, GL_ZERO ); - glBegin(GL_QUADS); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - - glTranslatef(3.0, 0, 0); - glBlendFunc( GL_SRC_COLOR, GL_ZERO ); - glBegin(GL_QUADS); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - - glTranslatef(3.0, 0, 0); - glBlendFunc( GL_ONE, GL_ZERO ); - glBegin(GL_QUADS); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - - glBlendFunc( GL_ZERO, GL_DST_COLOR ); - glBegin(GL_QUADS); - 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 ); - const double version = strtod( ver_string, NULL ); - - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION = %s\n", ver_string); - - if ( (version < 1.4) && !glutExtensionSupported("GL_NV_blend_square")) { - printf("Sorry, this program requires either OpenGL 1.4 or GL_NV_blend_square\n"); - exit(1); - } - - printf("\nAll 4 squares should be the same color. The two on the left are drawn\n" - "without NV_blend_square functionality, and the two on the right are drawn\n" - "with NV_blend_square functionality. If the two on the left are dark, but\n" - "the two on the right are not, then NV_blend_square is broken.\n"); - glEnable( GL_BLEND ); - glBlendEquation( GL_FUNC_ADD ); -} - - -int main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( Width, Height ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow( "GL_NV_blend_square test" ); - glewInit(); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - Init(); - glutMainLoop(); - return 0; -} |