1 files changed, 0 insertions, 283 deletions
diff --git a/progs/demos/dissolve.c b/progs/demos/dissolve.c
deleted file mode 100644
index 8ab5242d91..0000000000
--- a/progs/demos/dissolve.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/**
- * Dissolve between two images using randomized/patterned stencil buffer
- * and varying stencil ref.
- *
- * Brian Paul
- * 29 Jan 2010
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <GL/glut.h>
-#include "readtex.h"
-
-#define FILE1 "../images/bw.rgb"
-#define FILE2 "../images/arch.rgb"
-
-
-static int Win;
-static int WinWidth = 400, WinHeight = 400;
-static GLboolean Anim = GL_TRUE;
-
-static int ImgWidth[2], ImgHeight[2];
-static GLenum ImgFormat[2];
-static GLubyte *Image[2];
-static GLfloat ScaleX[2], ScaleY[2];
-
-static GLubyte StencilRef = 0;
-
-static int Mode = 0;
-
-
-static void
-Idle(void)
-{
-   StencilRef = (GLint) (glutGet(GLUT_ELAPSED_TIME) / 10);
-   glutPostRedisplay();
-}
-
-
-static void
-FillRandomPixels(GLubyte *b)
-{
-   int i;
-   for (i = 0; i < WinWidth * WinHeight; i++) {
-      b[i] = rand() & 0xff;
-   }
-}
-
-
-static void
-FillRandomRects(GLubyte *b)
-{
-   int i;
-
-   memset(b, 0, WinWidth * WinHeight);
-
-   for (i = 0; i < 256; i++) {
-      int x = rand() % WinWidth;
-      int y = rand() % WinHeight;
-      int w = rand() % 60;
-      int h = rand() % 60;
-      int ix, iy;
-
-      if (x + w > WinWidth)
-         w = WinWidth - x;
-      if (y + h > WinHeight)
-         h = WinHeight - y;
-
-      for (iy = 0; iy < h; iy++) {
-         for (ix = 0; ix < w; ix++) {
-            int p = (y + iy) * WinWidth + x + ix;
-            b[p] = i;
-         }
-      }
-   }
-}
-
-
-static void
-FillWipe(GLubyte *b)
-{
-   int iy, ix;
-
-   memset(b, 0, WinWidth * WinHeight);
-
-   for (iy = 0; iy < WinHeight; iy++) {
-      for (ix = 0; ix < WinWidth; ix++) {
-         int p = iy * WinWidth + ix;
-         b[p] = 2 * ix + iy / 2;
-      }
-   }
-}
-
-
-static void
-FillMoire(GLubyte *b)
-{
-   int iy, ix;
-
-   memset(b, 0, WinWidth * WinHeight);
-
-   for (iy = 0; iy < WinHeight; iy++) {
-      for (ix = 0; ix < WinWidth; ix++) {
-         int p = iy * WinWidth + ix;
-         b[p] = (ix / 2) * (ix / 2) - (iy / 2) * (iy / 2);
-      }
-   }
-}
-
-
-static void
-FillWaves(GLubyte *b)
-{
-   int iy, ix;
-
-   memset(b, 0, WinWidth * WinHeight);
-
-   for (iy = 0; iy < WinHeight; iy++) {
-      for (ix = 0; ix < WinWidth; ix++) {
-         int p = iy * WinWidth + ix;
-         float x = 8.0 * 3.1415 * ix / (float) WinWidth;
-         b[p] = (int) (25.0 * sin(x) ) - iy*2;
-      }
-   }
-}
-
-
-typedef void (*FillFunc)(GLubyte *b);
-
-
-static FillFunc Funcs[] = {
-   FillRandomPixels,
-   FillRandomRects,
-   FillWipe,
-   FillMoire,
-   FillWaves
-};
-
-#define NUM_MODES (sizeof(Funcs) / sizeof(Funcs[0]))
-
-
-
-static void
-InitStencilBuffer(void)
-{
-   GLubyte *b = malloc(WinWidth * WinHeight);
-
-   Funcs[Mode](b);
-
-   glStencilFunc(GL_ALWAYS, 0, ~0);
-   glPixelZoom(1.0, 1.0);
-   glDrawPixels(WinWidth, WinHeight, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, b);
-
-   free(b);
-}
-
-
-static void
-Draw(void)
-{
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   glPixelZoom(ScaleX[0], ScaleY[0]);
-   glStencilFunc(GL_LESS, StencilRef, ~0);
-   glDrawPixels(ImgWidth[0], ImgHeight[0], ImgFormat[0], GL_UNSIGNED_BYTE, Image[0]);
-
-   glPixelZoom(ScaleX[1], ScaleY[1]);
-   glStencilFunc(GL_GEQUAL, StencilRef, ~0);
-   glDrawPixels(ImgWidth[1], ImgHeight[1], ImgFormat[1], GL_UNSIGNED_BYTE, Image[1]);
-
-   glutSwapBuffers();
-}
-
-
-static void
-Reshape(int width, int height)
-{
-   WinWidth = width;
-   WinHeight = height;
-   glViewport(0, 0, width, height);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glTranslatef(0.0, 0.0, -15.0);
-
-   InitStencilBuffer();
-
-   ScaleX[0] = (float) width / ImgWidth[0];
-   ScaleY[0] = (float) height / ImgHeight[0];
-
-   ScaleX[1] = (float) width / ImgWidth[1];
-   ScaleY[1] = (float) height / ImgHeight[1];
-}
-
-
-static void
-Key(unsigned char key, int x, int y)
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-   case 'a':
-   case ' ':
-      Anim = !Anim;
-      if (Anim)
-         glutIdleFunc(Idle);
-      else
-         glutIdleFunc(NULL);
-      break;
-   case 'i':
-      InitStencilBuffer();
-      break;
-   case '-':
-      StencilRef--;
-      break;
-   case '+':
-      StencilRef++;
-      break;
-   case 'm':
-      Mode = (Mode + 1) % NUM_MODES;
-      InitStencilBuffer();
-      break;
-   case 27:
-      glutDestroyWindow(Win);
-      exit(0);
-      break;
-   }
-   glutPostRedisplay();
-}
-
-
-
-static void
-Init(void)
-{
-   Image[0] = LoadRGBImage(FILE1, &ImgWidth[0], &ImgHeight[0], &ImgFormat[0]);
-   if (!Image[0]) {
-      printf("Couldn't read %s\n", FILE1);
-      exit(0);
-   }
-
-   Image[1] = LoadRGBImage(FILE2, &ImgWidth[1], &ImgHeight[1], &ImgFormat[1]);
-   if (!Image[1]) {
-      printf("Couldn't read %s\n", FILE2);
-      exit(0);
-   }
-
-   glEnable(GL_STENCIL_TEST);
-   glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-}
-
-
-int
-main(int argc, char *argv[])
-{
-   glutInitWindowSize(WinWidth, WinHeight);
-   glutInit(&argc, argv);
-   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL);
-   Win = glutCreateWindow(argv[0]);
-   glutReshapeFunc(Reshape);
-   glutKeyboardFunc(Key);
-   glutDisplayFunc(Draw);
-   if (Anim)
-      glutIdleFunc(Idle);
-   Init();
-
-   printf("Keys:\n");
-   printf("  a/SPACE  toggle animation\n");
-   printf("  +/-      single step\n");
-   printf("  i        re-init pattern\n");
-   printf("  m        change pattern/dissolve mode\n");
-   printf("  ESC      exit\n");
-
-   glutMainLoop();
-   return 0;
-}