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Diffstat (limited to 'progs/tests/jkrahntest.c')
| -rw-r--r-- | progs/tests/jkrahntest.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/progs/tests/jkrahntest.c b/progs/tests/jkrahntest.c deleted file mode 100644 index 08660b8932..0000000000 --- a/progs/tests/jkrahntest.c +++ /dev/null @@ -1,180 +0,0 @@ - -/* This is a good test for glXSwapBuffers on non-current windows, - * and the glXCopyContext function. Fixed several Mesa/DRI bugs with - * this program on 15 June 2002. - * - * Joe's comments follow: - * - * I have tried some different approaches for being able to - * draw to multiple windows using one context, or a copied - * context. Mesa/indirect rendering works to use one context - * for multiple windows, but crashes with glXCopyContext. - * DRI is badly broken, at least for ATI. - * - * I also noticed that glXMakeCurrent allows a window and context - * from different visuals to be attached (haven't tested recently). - * - * Joe Krahn <jkrahn@nc.rr.com> - */ - -#include <GL/glx.h> -#include <GL/gl.h> -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <math.h> - -#ifndef M_PI -#define M_PI 3.14159 -#endif - -#define DEGTOR (M_PI/180.0) - -static int AttributeList[] = { GLX_RGBA, GLX_DOUBLEBUFFER, None }; - -int main(int argc, char **argv) -{ - Window win1, win2; - XVisualInfo *vi; - XSetWindowAttributes swa; - Display *dpy; - GLXContext ctx1, ctx2; - float angle; - int test; - - if (argc < 2) { - fprintf(stderr, "This program tests GLX context switching.\n"); - fprintf(stderr, "Usage: cxbug <n>\n"); - fprintf(stderr, "Where n is:\n"); - fprintf(stderr, "\t1) Use two contexts and swap only when the context is current (typical case).\n"); - fprintf(stderr, "\t2) Use two contexts and swap at the same time.\n"); - fprintf(stderr, "\t\t Used to crash Mesa & nVidia, and DRI artifacts. Seems OK now.\n"); - fprintf(stderr, "\t3) Use one context, but only swap when a context is current.\n"); - fprintf(stderr, "\t\t Serious artifacts for DRI at least with ATI.\n"); - fprintf(stderr, "\t4) Use one context, swap both windows at the same time, so the left\n"); - fprintf(stderr, "\t\t window has no context at swap time. Severe artifacts for DRI.\n"); - fprintf(stderr, "\t5) Use two contexts, copying one to the other when switching windows.\n"); - fprintf(stderr, "\t\t DRI gives an error, indirect rendering crashes server.\n"); - - exit(1); - } - test = atoi(argv[1]); - - /* get a connection */ - dpy = XOpenDisplay(NULL); - - /* Get an appropriate visual */ - vi = glXChooseVisual(dpy, DefaultScreen(dpy), AttributeList); - if (vi == 0) { - fprintf(stderr, "No matching visuals found.\n"); - exit(-1); - } - - /* Create two GLX contexts, with list sharing */ - ctx1 = glXCreateContext(dpy, vi, 0, True); - ctx2 = glXCreateContext(dpy, vi, ctx1, True); - - /* create a colormap */ - swa.colormap = XCreateColormap(dpy, RootWindow(dpy, vi->screen), - vi->visual, AllocNone); - swa.border_pixel = 0; - - /* Create two windows */ - win1 = XCreateWindow(dpy, RootWindow(dpy, vi->screen), - 10, 10, 200, 200, - 0, vi->depth, InputOutput, vi->visual, - CWBorderPixel | CWColormap, &swa); - XStoreName(dpy, win1, "Test [L]"); - XMapWindow(dpy, win1); - XMoveWindow(dpy, win1, 10, 10); /* Initial requested x,y may not be honored */ - { - XSizeHints sizehints; - static const char *name = "window"; - sizehints.x = 10; - sizehints.y = 10; - sizehints.width = 200; - sizehints.height = 200; - sizehints.flags = USSize | USPosition; - XSetNormalHints(dpy, win1, &sizehints); - XSetStandardProperties(dpy, win1, name, name, - None, (char **)NULL, 0, &sizehints); - } - - - win2 = XCreateWindow(dpy, RootWindow(dpy, vi->screen), - 250, 10, 200, 200, - 0, vi->depth, InputOutput, vi->visual, - CWBorderPixel | CWColormap, &swa); - XStoreName(dpy, win1, "Test [R]"); - XMapWindow(dpy, win2); - XMoveWindow(dpy, win2, 260, 10); - { - XSizeHints sizehints; - static const char *name = "window"; - sizehints.x = 10; - sizehints.y = 10; - sizehints.width = 200; - sizehints.height = 200; - sizehints.flags = USSize | USPosition; - XSetNormalHints(dpy, win2, &sizehints); - XSetStandardProperties(dpy, win2, name, name, - None, (char **)NULL, 0, &sizehints); - } - - - /* Now draw some spinning things */ - for (angle = 0; angle < 360*4; angle += 10.0) { - /* Connect the context to window 1 */ - glXMakeCurrent(dpy, win1, ctx1); - - /* Clear and draw in window 1 */ - glDrawBuffer(GL_BACK); - glClearColor(1, 1, 0, 1); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - glColor3f(1, 0, 0); - glBegin(GL_TRIANGLES); - glVertex2f(0, 0); - glVertex2f(cos(angle * DEGTOR), sin(angle * DEGTOR)); - glVertex2f(cos((angle + 20.0) * DEGTOR), - sin((angle + 20.0) * DEGTOR)); - glEnd(); - glFlush(); - - if (test == 1 || test == 3 || test == 5) - glXSwapBuffers(dpy, win1); - - if (test == 5) - glXCopyContext(dpy, ctx1, ctx2, GL_ALL_ATTRIB_BITS); - /* Connect the context to window 2 */ - if (test == 3 || test == 4) { - glXMakeCurrent(dpy, win2, ctx1); - } else { - glXMakeCurrent(dpy, win2, ctx2); - } - - /* Clear and draw in window 2 */ - glDrawBuffer(GL_BACK); - glClearColor(0, 0, 1, 1); - glClear(GL_COLOR_BUFFER_BIT); - glColor3f(1, 1, 0); - glBegin(GL_TRIANGLES); - glVertex2f(0, 0); - glVertex2f(cos(angle * DEGTOR), sin(angle * DEGTOR)); - glVertex2f(cos((angle + 20.0) * DEGTOR), - sin((angle + 20.0) * DEGTOR)); - glEnd(); - glFlush(); - - /* Swap buffers */ - if (test == 2 || test == 4) - glXSwapBuffers(dpy, win1); - glXSwapBuffers(dpy, win2); - - /* wait a while */ - glXWaitX(); - usleep(20000); - } - - return 0; -} |