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

[mesa.git] / progs / samples / blendxor.c

diff --git a/progs/samples/blendxor.c b/progs/samples/blendxor.c
deleted file mode 100644 (file)
index 0571436..0000000
--- a/progs/samples/blendxor.c
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
-** blendxor.c - Demonstrates the use of the blend_logic_op
-**    extension to draw hilights.  Using XOR to draw the same
-**    image twice restores the background to its original value.
-*/
-
-#include <stdio.h>
-#include <string.h>
-#ifndef _WIN32
-#include <unistd.h>
-#endif
-#include <stdlib.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-
-
-GLenum doubleBuffer;
-int dithering = 0;
-int use11ops = 0;
-int supportlogops = 0;
-GLint windW, windH;
-
-static void Init(void)
-{
-    glDisable(GL_DITHER);
-    glShadeModel(GL_FLAT);
-}
-
-static void Reshape(int width, int height)
-{
-
-    windW = (GLint)width;
-    windH = (GLint)height;
-
-    glViewport(0, 0, (GLint)width, (GLint)height);
-
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    gluOrtho2D(0, 400, 0, 400);
-    glMatrixMode(GL_MODELVIEW);
-}
-
-static void Key(unsigned char key, int x, int y)
-{
-
-    switch (key) {
-      case 27:
-       exit(1);
-      case 'd':
-       dithering = !dithering;
-       break;
-      case 'l':
-        if (supportlogops == 3)
-           use11ops = (!use11ops);
-        if (use11ops)
-           printf("Using GL 1.1 color logic ops.\n");
-        else printf("Using GL_EXT_blend_logic_op.\n");
-        break;
-      default:
-       return;
-    }
-
-    glutPostRedisplay();
-}
-
-static void Draw(void)
-{
-    int i;
-
-    glDisable(GL_BLEND);
-    if (supportlogops & 2)
-       glDisable(GL_COLOR_LOGIC_OP);
-
-    (dithering) ? glEnable(GL_DITHER) : glDisable(GL_DITHER);
-
-    glClearColor(0.5, 0.6, 0.1, 1.0);
-    glClear(GL_COLOR_BUFFER_BIT);
-
-    /* Draw background prims */
-    glColor3f(0.1, 0.1, 1.0);
-    glBegin(GL_TRIANGLES);
-        glVertex2i(5, 5);
-        glVertex2i(130, 50);
-        glVertex2i(100,  300);
-    glEnd();
-    glColor3f(0.5, 0.2, 0.9);
-    glBegin(GL_TRIANGLES);
-        glVertex2i(200, 100);
-        glVertex2i(330, 50);
-        glVertex2i(340,  400);
-    glEnd();
-
-    glEnable(GL_BLEND);
-    if (!use11ops)
-       glBlendEquationEXT(GL_LOGIC_OP);
-    else
-       glEnable(GL_COLOR_LOGIC_OP);
-    glLogicOp(GL_XOR);
-
-    /* Draw a set of rectangles across the window */
-    glColor3f(0.9, 0.2, 0.8);
-    for(i = 0; i < 400; i+=60) {
-        glBegin(GL_POLYGON);
-            glVertex2i(i, 100);
-            glVertex2i(i+50, 100);
-            glVertex2i(i+50, 200);
-            glVertex2i(i, 200);
-        glEnd();
-    }
-    glFlush();   /* Added by Brian Paul */
-#ifndef _WIN32
-    sleep(2);
-#endif
-
-    /* Redraw  the rectangles, which should erase them */
-    for(i = 0; i < 400; i+=60) {
-        glBegin(GL_POLYGON);
-            glVertex2i(i, 100);
-            glVertex2i(i+50, 100);
-            glVertex2i(i+50, 200);
-            glVertex2i(i, 200);
-        glEnd();
-    }
-    glFlush();
-
-
-    if (doubleBuffer) {
-       glutSwapBuffers();
-    }
-}
-
-static GLenum Args(int argc, char **argv)
-{
-    GLint i;
-
-    doubleBuffer = GL_FALSE;
-
-    for (i = 1; i < argc; i++) {
-       if (strcmp(argv[i], "-sb") == 0) {
-           doubleBuffer = GL_FALSE;
-       } else if (strcmp(argv[i], "-db") == 0) {
-           doubleBuffer = GL_TRUE;
-       } else {
-           printf("%s (Bad option).\n", argv[i]);
-           return GL_FALSE;
-       }
-    }
-    return GL_TRUE;
-}
-
-int main(int argc, char **argv)
-{
-    GLenum type;
-    char *s;
-    char *extName = "GL_EXT_blend_logic_op";
-    char *version;
-
-    glutInit(&argc, argv);
-
-    if (Args(argc, argv) == GL_FALSE) {
-       exit(1);
-    }
-
-    glutInitWindowPosition(0, 0); glutInitWindowSize( 400, 400);
-
-    type = GLUT_RGB;
-    type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
-    glutInitDisplayMode(type);
-
-    if (glutCreateWindow("Blend XOR") == GL_FALSE) {
-       exit(1);
-    }
-
-    glewInit();
-
-    /* Make sure blend_logic_op extension is there. */
-    s = (char *) glGetString(GL_EXTENSIONS);
-    version = (char*) glGetString(GL_VERSION);
-    if (!s)
-       exit(1);
-    if (strstr(s,extName)) {
-       supportlogops = 1;
-        use11ops = 0;
-        printf("blend_logic_op extension available.\n");
-    }
-    if (strncmp(version,"1.1",3)>=0) {
-       supportlogops += 2;
-        use11ops = 1;
-       printf("1.1 color logic ops available.\n");
-    }
-    if (supportlogops == 0) {
-       printf("Blend_logic_op extension and GL 1.1 not present.\n");
-       exit(1);
-    }
-
-    Init();
-
-    glutReshapeFunc(Reshape);
-    glutKeyboardFunc(Key);
-    glutDisplayFunc(Draw);
-    glutMainLoop();
-       return 0;
-}