+++ /dev/null
-/*
- * Copyright © 2010 Pauli Nieminen
- *
- * 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
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS 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.
- */
-
-
-/*
- * Test case for huge cva arrays. Mesa code has to split this to multiple VBOs
- * which had memory access error.
- * This test case doesn't render incorrectly but valgrind showed the memory
- * access error.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <stddef.h> /* for ptrdiff_t, referenced by GL.h when GL_GLEXT_LEGACY defined */
-#ifdef _WIN32
-#include <windows.h>
-#endif
-#define GL_GLEXT_LEGACY
-#include <GL/glut.h>
-
-GLfloat *verts;
-
-GLubyte *color;
-
-GLuint *indices;
-
-#define rows 1000 /* Create 1000x1000 vertex grid */
-#define row_width 5000.0
-#define grid_depth -50.0
-GLuint nr_verts_in_row = rows;
-GLuint nr_indices_in_strip = rows * 2;
-
-GLboolean double_buffer;
-GLboolean compiled = GL_TRUE;
-
-static void generate_verts( void )
-{
- unsigned x, y;
- GLfloat step = row_width /(GLfloat)(nr_verts_in_row - 1);
- verts = malloc(sizeof(verts[0]) * 4 * nr_verts_in_row * nr_verts_in_row);
-
- for (y = 0; y < nr_verts_in_row; ++y) {
- for (x = 0; x < nr_verts_in_row; ++x) {
- unsigned idx = 4*(x + y * nr_verts_in_row);
- verts[idx + 0] = step * x - row_width/2.0;
- verts[idx + 1] = step * y - row_width/2.0;
- /* deep enough not to be vissible */
- verts[idx + 2] = grid_depth;
- verts[idx + 3] = 0.0;
- }
- }
- glVertexPointer( 3, GL_FLOAT, sizeof(verts[0])*4, verts );
-}
-
-static void generate_colors( void )
-{
- unsigned x, y;
- GLfloat step = 255.0/(GLfloat)(nr_verts_in_row - 1);
- color = malloc(sizeof(color[0]) * 4 * nr_verts_in_row * nr_verts_in_row);
-
- for (y = 0; y < nr_verts_in_row; ++y) {
- for (x = 0; x < nr_verts_in_row; ++x) {
- unsigned idx = 4*(x + y * nr_verts_in_row);
- color[idx + 0] = (GLubyte)(step * x);
- color[idx + 1] = 0x00;
- color[idx + 2] = (GLubyte)(step * y);
- color[idx + 3] = 0x00;
- }
- }
- glColorPointer( 4, GL_UNSIGNED_BYTE, 0, color );
-}
-
-static void generate_indices( void )
-{
- unsigned strip, i;
-
- /* indice size * number of strips * number of indices in strip */
- indices = malloc(sizeof(indices[0]) * (nr_verts_in_row - 1) *
- (nr_indices_in_strip));
-
- for (strip = 0; strip < nr_verts_in_row - 1; strip += 2) {
- for (i = 0; i < nr_indices_in_strip; i+=2) {
- unsigned idx = i + strip * nr_indices_in_strip;
- unsigned idx2 = (nr_indices_in_strip - i - 2) + (strip +
- 1) * (nr_indices_in_strip);
- indices[idx + 1] = i/2 + strip*nr_verts_in_row;
- indices[idx] = i/2 + (strip + 1)*nr_verts_in_row;
- if (strip + 1 < nr_verts_in_row - 1) {
- indices[idx2] = i/2 + (strip + 1)*nr_verts_in_row;
- indices[idx2 + 1] = i/2 + (strip + 2)*nr_verts_in_row;
- }
- }
- }
-}
-
-static void init( void )
-{
-
-
- generate_verts();
- generate_colors();
- generate_indices();
-
- glClearColor( 0.0, 0.0, 0.0, 0.0 );
- glShadeModel( GL_SMOOTH );
-
- glEnableClientState( GL_VERTEX_ARRAY );
- glEnableClientState( GL_COLOR_ARRAY );
-
- glMatrixMode( GL_PROJECTION );
- glLoadIdentity();
- glFrustum( -100.0, 100.0, -100.0, 100.0, 1.0, 100.0 );
- glMatrixMode( GL_MODELVIEW );
- glLoadIdentity();
-
-#ifdef GL_EXT_compiled_vertex_array
- if ( compiled ) {
- glLockArraysEXT( 0, rows * rows );
- }
-#endif
-}
-
-static void display( void )
-{
- glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
- glDrawElements( GL_TRIANGLE_STRIP, nr_indices_in_strip * (nr_verts_in_row - 1) , GL_UNSIGNED_INT, indices );
-
- if ( double_buffer )
- glutSwapBuffers();
- else
- glFlush();
-}
-
-static void keyboard( unsigned char key, int x, int y )
-{
- switch ( key ) {
- case 27:
- exit( 0 );
- break;
- }
-
- glutPostRedisplay();
-}
-
-static GLboolean args( int argc, char **argv )
-{
- GLint i;
-
- double_buffer = GL_TRUE;
-
- for ( i = 1 ; i < argc ; i++ ) {
- if ( strcmp( argv[i], "-sb" ) == 0 ) {
- double_buffer = GL_FALSE;
- } else if ( strcmp( argv[i], "-db" ) == 0 ) {
- double_buffer = GL_TRUE;
- } else {
- fprintf( stderr, "%s (Bad option).\n", argv[i] );
- return GL_FALSE;
- }
- }
- return GL_TRUE;
-}
-
-int main( int argc, char **argv )
-{
- GLenum type;
- char *string;
- double version;
-
- glutInit( &argc, argv );
-
- if ( args( argc, argv ) == GL_FALSE ) {
- exit( 1 );
- }
-
- type = GLUT_RGB | GLUT_DEPTH;
- type |= ( double_buffer ) ? GLUT_DOUBLE : GLUT_SINGLE;
-
- glutInitDisplayMode( type );
- glutInitWindowSize( 250, 250 );
- glutInitWindowPosition( 100, 100 );
- glutCreateWindow( "CVA Test" );
-
- /* Make sure the server supports GL 1.2 vertex arrays.
- */
- string = (char *) glGetString( GL_VERSION );
-
- version = atof(string);
- if ( version < 1.2 ) {
- fprintf( stderr, "This program requires OpenGL 1.2 vertex arrays.\n" );
- exit( -1 );
- }
-
- /* See if the server supports compiled vertex arrays.
- */
- string = (char *) glGetString( GL_EXTENSIONS );
-
- if ( !strstr( string, "GL_EXT_compiled_vertex_array" ) ) {
- fprintf( stderr, "Compiled vertex arrays not supported by this renderer.\n" );
- compiled = GL_FALSE;
- }
-
- init();
-
- glutDisplayFunc( display );
- glutKeyboardFunc( keyboard );
- glutMainLoop();
-
- return 0;
-}
projects / mesa.git / blobdiff