From ee34e6ef716bb630440299ac1efbc2055ef09ffd Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Mon, 12 Jun 2006 16:26:29 +0000 Subject: Add support for GL_APPLE_vertex_array_object. Several test programs and demos are also added. Adding basic support to drivers should be as easy as just enabling the extension, though thorough test would also be required. --- progs/tests/vao-02.c | 205 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 205 insertions(+) create mode 100644 progs/tests/vao-02.c (limited to 'progs/tests/vao-02.c') diff --git a/progs/tests/vao-02.c b/progs/tests/vao-02.c new file mode 100644 index 0000000000..87d45313a6 --- /dev/null +++ b/progs/tests/vao-02.c @@ -0,0 +1,205 @@ +/* + * (C) Copyright IBM Corporation 2006 + * 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 + * 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 vao-02.c + * + * Simple test of APPLE_vertex_array_object functionality. This test creates + * a VAO, pushed it (via \c glPushClientAttrib), deletes the VAO, then pops + * it (via \c glPopClientAttrib). After popping, the state of the VAO is + * examined. + * + * According the the APPLE_vertex_array_object spec, the contents of the VAO + * should be restored to the values that they had when pushed. + * + * \author Ian Romanick + */ + +#include +#include +#include + +#ifdef __darwin__ +#include + +typedef void (* PFNGLBINDVERTEXARRAYAPPLEPROC) (GLuint array); +typedef void (* PFNGLDELETEVERTEXARRAYSAPPLEPROC) (GLsizei n, const GLuint *arrays); +typedef void (* PFNGLGENVERTEXARRAYSAPPLEPROC) (GLsizei n, const GLuint *arrays); +typedef GLboolean (* PFNGLISVERTEXARRAYAPPLEPROC) (GLuint array); + +#else +#include +#endif + +static PFNGLBINDVERTEXARRAYAPPLEPROC bind_vertex_array = NULL; +static PFNGLGENVERTEXARRAYSAPPLEPROC gen_vertex_arrays = NULL; +static PFNGLDELETEVERTEXARRAYSAPPLEPROC delete_vertex_arrays = NULL; +static PFNGLISVERTEXARRAYAPPLEPROC is_vertex_array = NULL; + +static int Width = 400; +static int Height = 200; +static const GLfloat Near = 5.0, Far = 25.0; + + +static void Display( void ) +{ +} + + +static void Idle( void ) +{ +} + + +static void Visible( int vis ) +{ + if ( vis == GLUT_VISIBLE ) { + glutIdleFunc( Idle ); + } + else { + glutIdleFunc( NULL ); + } +} +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 ); +} + + +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 ); + GLuint obj; + int pass = 1; + void * ptr; + GLenum err; + + + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + printf("GL_VERSION = %s\n\n", ver_string); + + if ( !glutExtensionSupported("GL_APPLE_vertex_array_object") ) { + printf("Sorry, this program requires GL_APPLE_vertex_array_object\n"); + exit(2); + } + + bind_vertex_array = glutGetProcAddress( "glBindVertexArrayAPPLE" ); + gen_vertex_arrays = glutGetProcAddress( "glGenVertexArraysAPPLE" ); + delete_vertex_arrays = glutGetProcAddress( "glDeleteVertexArraysAPPLE" ); + is_vertex_array = glutGetProcAddress( "glIsVertexArrayAPPLE" ); + + + (*gen_vertex_arrays)( 1, & obj ); + (*bind_vertex_array)( obj ); + glVertexPointer( 4, GL_FLOAT, sizeof(GLfloat) * 4, (void *) 0xDEADBEEF); + glEnableClientState( GL_VERTEX_ARRAY ); + + glPushClientAttrib( GL_CLIENT_VERTEX_ARRAY_BIT ); + + (*delete_vertex_arrays)( 1, & obj ); + + err = glGetError(); + if (err) { + printf( "glGetError incorrectly returned 0x%04x.\n", err ); + pass = 0; + } + + if ( (*is_vertex_array)( obj ) ) { + printf( "Array object is incorrectly still valid.\n" ); + pass = 0; + } + + err = glGetError(); + if (err) { + printf( "glGetError incorrectly returned 0x%04x.\n", err ); + pass = 0; + } + + glPopClientAttrib(); + + err = glGetError(); + if (err) { + printf( "glGetError incorrectly returned 0x%04x.\n", err ); + pass = 0; + } + + if ( ! (*is_vertex_array)( obj ) ) { + printf( "Array object is incorrectly invalid.\n" ); + pass = 0; + } + + if ( ! glIsEnabled( GL_VERTEX_ARRAY ) ) { + printf( "Array state is incorrectly disabled.\n" ); + pass = 0; + } + + glGetPointerv( GL_VERTEX_ARRAY_POINTER, & ptr ); + if ( ptr != (void *) 0xDEADBEEF ) { + printf( "Array pointer is incorrectly set to 0x%p.\n", ptr ); + pass = 0; + } + + if ( ! pass ) { + printf( "FAIL!\n" ); + exit(1); + } +} + + +int main( int argc, char *argv[] ) +{ + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( Width, Height ); + glutInitDisplayMode( GLUT_RGB ); + glutCreateWindow( "GL_APPLE_vertex_array_object demo" ); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutDisplayFunc( Display ); + glutVisibilityFunc( Visible ); + + Init(); + + return 0; +} -- cgit v1.2.3