Attachment 56551 Details for Bug 45558 – testcase for max not rendering

testcase for max not rendering

glu.c (text/plain), 3.06 KB, created by Alban Browaeys on 2012-02-02 10:40:03 UTC

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Creator: Alban Browaeys

Created: 2012-02-02 10:40:03 UTC

Size: 3.06 KB

patch

obsolete

>/*
> * Compile with:
> * gcc -o glu1 -I/usr/include/libdrm  -lGLU -lGL   -lglut glu.c
> */
>
>#include <GL/gl.h>
>#include <GL/glu.h>
>#include <GL/glut.h>
>#include <stdlib.h>
>#include <stdio.h>
>
>/*  Create checkerboard texture  */
>#define checkImageWidth 64
>#define checkImageHeight 64
>static GLubyte checkImage[checkImageHeight][checkImageWidth][4];
>
>static GLuint texName;
>
>void makeCheckImage(void)
>{
>   int i, j, c;
>    
>   for (i = 0; i < checkImageHeight; i++) {
>      for (j = 0; j < checkImageWidth; j++) {
>         c = ((((i&0x8)==0)^((j&0x8))==0))*255;
>         checkImage[i][j][0] = (GLubyte) c;
>         checkImage[i][j][1] = (GLubyte) c;
>         checkImage[i][j][2] = (GLubyte) c;
>         checkImage[i][j][3] = (GLubyte) 255;
>      }
>   }
>}
>
>void init(void)
>{    
>   glClearColor (0.0, 0.0, 0.0, 0.0);
>   glShadeModel(GL_FLAT);
>   glEnable(GL_DEPTH_TEST);
>
>   makeCheckImage();
>   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
>
>   glGenTextures(1, &texName);
>   glBindTexture(GL_TEXTURE_2D, texName);
>
>   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
>   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
>   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, 
>                   GL_NEAREST);
>   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, 
>                   GL_NEAREST);
>   glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
>   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, checkImageWidth, 
>                checkImageHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, 
>                checkImage);
>}
>
>void display(void)
>{
>   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
>   glEnable(GL_TEXTURE_2D);
>   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
>   glBindTexture(GL_TEXTURE_2D, texName);
>   glBegin(GL_QUADS);
>   glTexCoord2f(0.0, 0.0); glVertex3f(-2.0, -1.0, 0.0);
>   glTexCoord2f(0.0, 1.0); glVertex3f(-2.0, 1.0, 0.0);
>   glTexCoord2f(1.0, 1.0); glVertex3f(0.0, 1.0, 0.0);
>   glTexCoord2f(1.0, 0.0); glVertex3f(0.0, -1.0, 0.0);
>
>   glTexCoord2f(0.0, 0.0); glVertex3f(1.0, -1.0, 0.0);
>   glTexCoord2f(0.0, 1.0); glVertex3f(1.0, 1.0, 0.0);
>   glTexCoord2f(1.0, 1.0); glVertex3f(2.41421, 1.0, -1.41421);
>   glTexCoord2f(1.0, 0.0); glVertex3f(2.41421, -1.0, -1.41421);
>   glEnd();
>   glFlush();
>   glDisable(GL_TEXTURE_2D);
>}
>
>void reshape(int w, int h)
>{
>printf("%s: (%d,%d)\n", __FUNCTION__, w, h);
>   glViewport(0, 0, (GLsizei) w, (GLsizei) h);
>   glMatrixMode(GL_PROJECTION);
>   glLoadIdentity();
>   gluPerspective(60.0, (GLfloat) w/(GLfloat) h, 1.0, 30.0);
>   glMatrixMode(GL_MODELVIEW);
>   glLoadIdentity();
>   glTranslatef(0.0, 0.0, -3.6);
>}
>
>void keyboard (unsigned char key, int x, int y)
>{
>   switch (key) {
>      case 27:
>         exit(0);
>         break;
>      default:
>         break;
>   }
>}
>
>int main(int argc, char** argv)
>{
>   glutInit(&argc, argv);
>   glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
>   glutInitWindowSize(2048, 2048);
>   glutInitWindowPosition(0, 0);
>   glutCreateWindow(argv[0]);
>   //reshape (2048, 2048);
>   init();
>   glutDisplayFunc(display);
>   glutReshapeFunc(reshape);
>   glutKeyboardFunc(keyboard);
>   glutMainLoop();
>   return 0; 
>}

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Attachments on bug 45558: 56550 | 56551

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