Attachment 10220 Details for Bug 11184 – test case

test case

drawpix.c (text/plain), 1.42 KB, created by WuNian on 2007-06-07 00:20:24 UTC

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Creator: WuNian

Created: 2007-06-07 00:20:24 UTC

Size: 1.42 KB

patch

obsolete

>#include <GL/glut.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <math.h>
>
>#define WINDSIZEX 100
>#define WINDSIZEY 100
>
>#define W 40
>#define H 40
>
>void init(void)
>{
>   glClearColor(0.0, 0.0, 0.0, 0.0);
>   glColor3f(0.5, 0.0, 0.0);
>   glDisable(GL_DITHER);
>
>}
>
>static void test(void)
>{    
>   GLfloat buf[WINDSIZEX*WINDSIZEY*3];
>   int size;
>   int i;
>   GLubyte dataBuf[W*H*3];
>
>   glRasterPos2f(-1.0, -1.0);
>
>   //    polyWidth = W * 2.0 / WINDSIZEX;
>   glPixelStorei(GL_UNPACK_ROW_LENGTH, W);
>
>   size = W * H;
>
>   for (i = 0; i < size; i++) {
>      dataBuf[i] = 255;
>      dataBuf[i+1] = 255;
>      dataBuf[i+2] = 255;
>   }
>   glClear(GL_COLOR_BUFFER_BIT);
>   glDrawPixels(W, H, GL_RGB, GL_UNSIGNED_BYTE, dataBuf);
>
>   glReadPixels(0, 0, WINDSIZEX, WINDSIZEY, GL_RGB, GL_FLOAT, buf);
>   printf("draw pixel at (0, 0): %f %f %f\n", buf[0], buf[1], buf[2]);
>}
>
>void display(void)
>{
>   glViewport(0, 0, WINDSIZEX, WINDSIZEY);
>   glMatrixMode(GL_PROJECTION);
>   glLoadIdentity();
>   gluOrtho2D(0, WINDSIZEX, 0, WINDSIZEY);
>   glMatrixMode(GL_MODELVIEW);
>   glLoadIdentity();
>
>   test();
>}
>
>int main(int argc, char** argv)
>{
>   glutInit(&argc, argv);
>   glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
>   glutInitWindowSize(WINDSIZEX, WINDSIZEY);
>   glutInitWindowPosition(100, 100);
>   glutCreateWindow(argv[0]);
>   init();
>   glutDisplayFunc(display);
>   glutMainLoop();
>   return 0; 
>}

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Attachments on bug 11184: 10220

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