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-rw-r--r--progs/tests/zcomp.c223
1 files changed, 0 insertions, 223 deletions
diff --git a/progs/tests/zcomp.c b/progs/tests/zcomp.c
deleted file mode 100644
index d6b9c070223..00000000000
--- a/progs/tests/zcomp.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/**
- * Test Z compositing with glDrawPixels(GL_DEPTH_COMPONENT) and stencil test.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-
-
-static int Win;
-static GLfloat Xrot = 0, Yrot = 0, Zpos = 6;
-static GLboolean Anim = GL_FALSE;
-
-static int Width = 400, Height = 200;
-static GLfloat *Zimg;
-static GLubyte *Cimg;
-static GLboolean showZ = 0;
-
-
-static void
-Idle(void)
-{
- Xrot += 3.0;
- Yrot += 4.0;
- glutPostRedisplay();
-}
-
-
-/**
- * Draw first object, save color+Z images
- */
-static void
-DrawFirst(void)
-{
- static const GLfloat red[4] = { 1.0, 0.0, 0.0, 0.0 };
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glTranslatef(-1, 0, 0);
- glRotatef(45 + Xrot, 1, 0, 0);
-
- glutSolidTorus(0.75, 2.0, 10, 20);
-
- glPopMatrix();
-
- glReadPixels(0, 0, Width, Height, GL_DEPTH_COMPONENT, GL_FLOAT, Zimg);
- glReadPixels(0, 0, Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, Cimg);
-}
-
-
-/**
- * Draw second object.
- */
-static void
-DrawSecond(void)
-{
- static const GLfloat blue[4] = { 0.0, 0.0, 1.0, 0.0 };
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, blue);
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-
- glPushMatrix();
- glTranslatef(+1, 0, 0);
- glRotatef(-45 + Xrot, 1, 0, 0);
-
- glutSolidTorus(0.75, 2.0, 10, 20);
-
- glPopMatrix();
-}
-
-
-/**
- * Composite first/saved image over second rendering.
- */
-static void
-Composite(void)
-{
- glWindowPos2i(0, 0);
-
- /* Draw Z values, set stencil where Z test passes */
- glEnable(GL_STENCIL_TEST);
- glStencilFunc(GL_ALWAYS, 1, ~0);
- glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
- glColorMask(0,0,0,0);
- glDrawPixels(Width, Height, GL_DEPTH_COMPONENT, GL_FLOAT, Zimg);
- glColorMask(1,1,1,1);
-
- /* Draw color where stencil==1 */
- glStencilFunc(GL_EQUAL, 1, ~0);
- glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
- glDisable(GL_DEPTH_TEST);
- glDrawPixels(Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, Cimg);
- glEnable(GL_DEPTH_TEST);
-
- glDisable(GL_STENCIL_TEST);
-}
-
-
-static void
-Draw(void)
-{
- DrawFirst();
- DrawSecond();
- Composite();
- glutSwapBuffers();
-}
-
-
-static void
-Reshape(int width, int height)
-{
- GLfloat ar = (float) width / height;
- glViewport(0, 0, width, height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum(-ar, ar, -1.0, 1.0, 5.0, 30.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -15.0);
-
- Width = width;
- Height = height;
-
- if (Zimg)
- free(Zimg);
- if (Cimg)
- free(Cimg);
- Zimg = (float *) malloc(width * height * 4);
- Cimg = (GLubyte *) malloc(width * height * 4);
-}
-
-
-static void
-Key(unsigned char key, int x, int y)
-{
- const GLfloat step = 1.0;
- (void) x;
- (void) y;
- switch (key) {
- case 'a':
- Anim = !Anim;
- if (Anim)
- glutIdleFunc(Idle);
- else
- glutIdleFunc(NULL);
- break;
- case 'd':
- showZ = !showZ;
- break;
- case 'z':
- Zpos -= step;
- break;
- case 'Z':
- Zpos += step;
- break;
- case 27:
- glutDestroyWindow(Win);
- exit(0);
- break;
- }
- glutPostRedisplay();
-}
-
-
-static void
-SpecialKey(int key, int x, int y)
-{
- const GLfloat step = 3.0;
- (void) x;
- (void) y;
- switch (key) {
- case GLUT_KEY_UP:
- Xrot -= step;
- break;
- case GLUT_KEY_DOWN:
- Xrot += step;
- break;
- case GLUT_KEY_LEFT:
- Yrot -= step;
- break;
- case GLUT_KEY_RIGHT:
- Yrot += step;
- break;
- }
- glutPostRedisplay();
-}
-
-
-static void
-Init(void)
-{
- /* setup lighting, etc */
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
-}
-
-
-int
-main(int argc, char *argv[])
-{
- glutInit(&argc, argv);
- glutInitWindowPosition(0, 0);
- glutInitWindowSize(Width, Height);
- glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL);
- Win = glutCreateWindow(argv[0]);
- glewInit();
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutSpecialFunc(SpecialKey);
- glutDisplayFunc(Draw);
- if (Anim)
- glutIdleFunc(Idle);
- Init();
- glutMainLoop();
- return 0;
-}