diff options
| -rw-r--r-- | progs/tests/Makefile | 7 | ||||
| -rw-r--r-- | progs/tests/invert.c | 180 |
2 files changed, 187 insertions, 0 deletions
diff --git a/progs/tests/Makefile b/progs/tests/Makefile index dbcb088244..c1218b1ca9 100644 --- a/progs/tests/Makefile +++ b/progs/tests/Makefile @@ -30,6 +30,7 @@ SOURCES = antialias.c \ fptest1.c \ fptexture.c \ getprocaddress.c \ + invert.c \ manytex.c \ multipal.c \ no_s3tc.c \ @@ -100,6 +101,12 @@ texrect: texrect.o readtex.o texrect.o: texrect.c readtex.h $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ +invert: invert.o readtex.o + $(CC) invert.o readtex.o $(LIBS) -o $@ + +invert.o: invert.c readtex.h + $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ + readtex.o: readtex.c $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ diff --git a/progs/tests/invert.c b/progs/tests/invert.c new file mode 100644 index 0000000000..5f196c9817 --- /dev/null +++ b/progs/tests/invert.c @@ -0,0 +1,180 @@ +/* + * (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 ) +{ + 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 ); + 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 ); + 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; +} |