Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.

[mesa.git] / progs / tests / stencilreaddraw.c

diff --git a/progs/tests/stencilreaddraw.c b/progs/tests/stencilreaddraw.c
deleted file mode 100644 (file)
index 84a5a92..0000000
--- a/progs/tests/stencilreaddraw.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * Test glRead/DrawPixels for GL_STENCIL_INDEX, with pixelzoom.
- * 
- * Brian Paul
- * 8 April 2010
- */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-
-static GLint WinWidth = 500, WinHeight = 500;
-static GLboolean TestPacking = GL_FALSE;
-static GLboolean TestList = GL_FALSE;
-
-
-static GLuint StencilValue = 192;
-
-static void Display(void)
-{
-   GLubyte stencil[100 * 100 * 2];
-   GLubyte stencil2[400 * 400]; /* *2 to test pixelstore stuff */
-   GLuint list;
-
-   glClearColor(0.5, 0.5, 0.5, 1.0);
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-
-   glEnable(GL_DEPTH_TEST);
-
-   glStencilOp(GL_INVERT, GL_KEEP, GL_REPLACE);
-   glStencilFunc(GL_ALWAYS, StencilValue, ~0);
-   glEnable(GL_STENCIL_TEST);
-
-   /* draw a sphere */
-   glViewport(0, 0, 100, 100);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(-1, 1, -1, 1, -1, 0);  /* clip away back half of sphere */
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glutSolidSphere(1.0, 20, 10);
-
-   glDisable(GL_STENCIL_TEST);
-
-   if (TestPacking) {
-      glPixelStorei(GL_PACK_ROW_LENGTH, 120);
-      glPixelStorei(GL_PACK_SKIP_PIXELS, 5);
-   }
-
-   /* read the stencil image */
-   glReadPixels(0, 0, 100, 100, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, stencil);
-   {
-      GLubyte min, max;
-      int i;
-      min = max = stencil[0];
-      for (i = 1; i < 100 * 100; i++) {
-         if (stencil[i] < min)
-            min = stencil[i];
-         if (stencil[i] > max)
-            max = stencil[i];
-      }
-      printf("Stencil value range: [%u, %u]\n", min, max);
-      if (max != StencilValue) {
-         printf("Error: expected max stencil val of %u, found %u\n",
-                StencilValue, max);
-      }
-   }
-
-   /* Draw the Z image as luminance above original rendering */
-   glWindowPos2i(0, 100);
-   glDrawPixels(100, 100, GL_LUMINANCE, GL_UNSIGNED_BYTE, stencil);
-
-   if (1) {
-      if (TestPacking) {
-         glPixelStorei(GL_PACK_ROW_LENGTH, 0);
-         glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
-         glPixelStorei(GL_UNPACK_ROW_LENGTH, 120);
-         glPixelStorei(GL_UNPACK_SKIP_PIXELS, 5);
-      }
-
-      /* draw stencil image with scaling (into stencil buffer) */
-      glPixelZoom(4.0, 4.0);
-      glColor4f(1, 0, 0, 0);
-      glWindowPos2i(100, 0);
-
-      if (TestList) {
-         list = glGenLists(1);
-         glNewList(list, GL_COMPILE);
-         glDrawPixels(100, 100, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, stencil);
-         glEndList();
-         glCallList(list);
-         glDeleteLists(list, 1);
-      }
-      else {
-         glDrawPixels(100, 100, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, stencil);
-      }
-
-      if (TestPacking) {
-         glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-         glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
-      }
-
-      /* read back scaled stencil image */
-      glReadPixels(100, 0, 400, 400, GL_STENCIL_INDEX,
-                   GL_UNSIGNED_BYTE, stencil2);
-      /* draw as luminance */
-      glPixelZoom(1.0, 1.0);
-      glWindowPos2i(100, 0);
-      glDrawPixels(400, 400, GL_LUMINANCE, GL_UNSIGNED_BYTE, stencil2);
-   }
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape(int width, int height)
-{
-   WinWidth = width;
-   WinHeight = height;
-   glViewport(0, 0, width, height);
-}
-
-
-static void Key(unsigned char key, int x, int y)
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 'p':
-         TestPacking = !TestPacking;
-         printf("Test pixel pack/unpack: %d\n", TestPacking);
-         break;
-      case 'l':
-         TestList = !TestList;
-         printf("Test dlist: %d\n", TestList);
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init(void)
-{
-   const GLfloat blue[4] = {.1, .1, 1.0, 1.0};
-   const GLfloat gray[4] = {0.2, 0.2, 0.2, 1.0};
-   const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
-   const GLfloat pos[4] = {0, 0, 10, 0};
-   GLint bits;
-
-   printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
-   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
-
-   glGetIntegerv(GL_STENCIL_BITS, &bits);
-   printf("Stencil bits: %d\n", bits);
-
-   assert(bits >= 8);
-
-   glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, blue);
-   glLightfv(GL_LIGHT0, GL_AMBIENT, gray);
-   glLightfv(GL_LIGHT0, GL_DIFFUSE, white);
-   glLightfv(GL_LIGHT0, GL_POSITION, pos);
-   glEnable(GL_LIGHTING);
-   glEnable(GL_LIGHT0);
-}
-
-
-int main(int argc, char *argv[])
-{
-   glutInit(&argc, argv);
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WinWidth, WinHeight);
-   glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_STENCIL | GLUT_DOUBLE);
-   glutCreateWindow(argv[0]);
-   glewInit();
-   glutReshapeFunc(Reshape);
-   glutKeyboardFunc(Key);
-   glutDisplayFunc(Display);
-   Init();
-   glutMainLoop();
-   return 0;
-}