Attachment 14692 Details for Bug 14733 – test case

test case

fp_case_depthrange.c (text/plain), 2.30 KB, created by WuNian on 2008-02-28 21:46:41 UTC

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Creator: WuNian

Created: 2008-02-28 21:46:41 UTC

Size: 2.30 KB

patch

obsolete

>#include <GL/glut.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <math.h>
>#include <string.h>
>
>#define WINDSIZEX 100
>#define WINDSIZEY 100
>
>#define SIZEW 4
>#define SIZEH 4
>
>static GLfloat pricol[] = {0.4, 0.2, 0.6, 0.8};//{0.3, 0.5, 0.7, 0.9 };
>
>// Draw function used by many test casses
>static void Draw()
>{
>   glBegin(GL_QUADS);
>   glVertex2i(0,0);
>   glVertex2i(0,SIZEH);
>   glVertex2i(SIZEW, SIZEH);
>   glVertex2i(SIZEW,0);
>   glEnd();
>}
>
>
>void init(void)
>{
>   glClearColor (1,1,1,1);
>   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
>   glShadeModel(GL_FLAT);
>   glDisable (GL_DITHER);
>   glBlendFunc(GL_ZERO, GL_SRC_ALPHA);
>}
>
>static void test(void)
>{    
>   GLfloat *buf;
>   char cmd1[1024] = "!!ARBfp1.0\nPARAM state_param = state.depth.range;\nMOV result.color, state_param;\n\nEND";
>   GLuint programName;
>
>   //glPushAttrib(GL_ALL_ATTRIB_BITS);
>
>   glColor4fv(pricol);
>
>   glGenProgramsARB(1, &programName);
>   // bind a program to the name
>   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, programName);
>   ///////////////////////////////////////
>   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
>	 (GLint) strlen(cmd1), cmd1);
>   if(glGetError() == GL_INVALID_OPERATION) {
>      printf("\nError loading program: check the error\n%s",
>	    glGetString(GL_PROGRAM_ERROR_STRING_ARB));
>      exit(1);
>   }
>   glEnable(GL_FRAGMENT_PROGRAM_ARB);
>#define DR_LOW 0.3
>#define DR_HI 0.8
>   glDepthRange(DR_LOW, DR_HI);
>
>   glClear(GL_COLOR_BUFFER_BIT);
>   Draw();
>   //////////////////////////////////////
>
>   buf = (GLfloat *)malloc(SIZEW * SIZEH *sizeof(GLfloat) * 4);
>   glReadPixels(0, 0, SIZEW, SIZEH, GL_RGBA, GL_FLOAT, buf);
>   printf("get pixel at (0, 0): %f %f %f %f\n", buf[0], buf[1], buf[2], buf[3]);
>   printf("should be: %f, %f, %f, 1.0\n", DR_LOW, DR_HI, DR_HI - DR_LOW);
>}
>
>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 | GLUT_DEPTH);
>   glutInitWindowSize(WINDSIZEX, WINDSIZEY);
>   glutInitWindowPosition(100, 100);
>   glutCreateWindow(argv[0]);
>   init();
>   glutDisplayFunc(display);
>   glutMainLoop();
>   return 0; 
>}

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Attachments on bug 14733: 14692

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