diff options
Diffstat (limited to 'progs/tests/invert.c')
| -rw-r--r-- | progs/tests/invert.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/progs/tests/invert.c b/progs/tests/invert.c deleted file mode 100644 index 750592ed79..0000000000 --- a/progs/tests/invert.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * (C) Copyright IBM Corporation 2005 - * 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 invert.c - * - * Simple test of GL_MESA_pack_invert functionality. Three squares are - * drawn. The first two should look the same, and the third one should - * look inverted. - * - * \author Ian Romanick <idr@us.ibm.com> - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <GL/glut.h> - -#include "readtex.h" - -#define IMAGE_FILE "../images/tree3.rgb" - -static int Width = 420; -static int Height = 150; -static const GLfloat Near = 5.0, Far = 25.0; - -static GLubyte * image = NULL; -static GLubyte * temp_image = NULL; -static GLuint img_width = 0; -static GLuint img_height = 0; -static GLuint img_format = 0; - -PFNGLWINDOWPOS2IPROC win_pos_2i = NULL; - - -static void Display( void ) -{ - GLint err; - - - glClearColor(0.2, 0.2, 0.8, 0); - glClear( GL_COLOR_BUFFER_BIT ); - - - /* This is the "reference" square. - */ - - (*win_pos_2i)( 5, 5 ); - glDrawPixels( img_width, img_height, img_format, GL_UNSIGNED_BYTE, image ); - - glPixelStorei( GL_PACK_INVERT_MESA, GL_FALSE ); - err = glGetError(); - if ( err != GL_NO_ERROR ) { - printf( "Setting PACK_INVERT_MESA to false generated an error (0x%04x).\n", - err ); - } - - glReadPixels( 5, 5, img_width, img_height, img_format, GL_UNSIGNED_BYTE, temp_image ); - (*win_pos_2i)( 5 + 1 * (10 + img_width), 5 ); - glDrawPixels( img_width, img_height, img_format, GL_UNSIGNED_BYTE, temp_image ); - - glPixelStorei( GL_PACK_INVERT_MESA, GL_TRUE ); - err = glGetError(); - if ( err != GL_NO_ERROR ) { - printf( "Setting PACK_INVERT_MESA to true generated an error (0x%04x).\n", - err ); - } - - glReadPixels( 5, 5, img_width, img_height, img_format, GL_UNSIGNED_BYTE, temp_image ); - (*win_pos_2i)( 5 + 2 * (10 + img_width), 5 ); - glDrawPixels( img_width, img_height, img_format, GL_UNSIGNED_BYTE, temp_image ); - - 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 * const) - glGetString( GL_VERSION ); - const float ver = strtof( ver_string, NULL ); - - - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION = %s\n", ver_string); - - if ( !glutExtensionSupported("GL_MESA_pack_invert") ) { - printf("\nSorry, this program requires GL_MESA_pack_invert.\n"); - exit(1); - } - - if ( ver >= 1.4 ) { - win_pos_2i = (PFNGLWINDOWPOS2IPROC) glutGetProcAddress( "glWindowPos2i" ); - } - else if ( glutExtensionSupported("GL_ARB_window_pos") ) { - win_pos_2i = (PFNGLWINDOWPOS2IPROC) glutGetProcAddress( "glWindowPos2iARB" ); - } - else if ( glutExtensionSupported("GL_MESA_window_pos") ) { - win_pos_2i = (PFNGLWINDOWPOS2IPROC) glutGetProcAddress( "glWindowPos2iMESA" ); - } - - - /* Do this check as a separate if-statement instead of as an else in case - * one of the required extensions is supported but glutGetProcAddress - * returns NULL. - */ - - if ( win_pos_2i == NULL ) { - printf("\nSorry, this program requires either GL 1.4 (or higher),\n" - "GL_ARB_window_pos, or GL_MESA_window_pos.\n"); - exit(1); - } - - printf("\nThe left 2 squares should be the same color, and the right\n" - "square should look upside-down.\n"); - - - image = LoadRGBImage( IMAGE_FILE, & img_width, & img_height, - & img_format ); - if ( image == NULL ) { - printf( "Could not open image file \"%s\".\n", IMAGE_FILE ); - exit(1); - } - - temp_image = malloc( 3 * img_height * img_width ); - if ( temp_image == NULL ) { - printf( "Could not allocate memory for temporary image.\n" ); - exit(1); - } -} - - -int main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( Width, Height ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow( "GL_MESA_pack_invert test" ); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - Init(); - glutMainLoop(); - return 0; -} |