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-rw-r--r--progs/tests/sharedtex.c440
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diff --git a/progs/tests/sharedtex.c b/progs/tests/sharedtex.c
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--- a/progs/tests/sharedtex.c
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@@ -1,440 +0,0 @@
-/* $Id: sharedtex.c,v 1.2 2002/01/16 14:32:46 joukj Exp $ */
-
-/*
- * Test sharing of display lists and texture objects between GLX contests.
- * Brian Paul
- * Summer 2000
- *
- *
- * Copyright (C) 2000 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-#include <GL/gl.h>
-#include <GL/glx.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-
-
-struct window {
- char DisplayName[1000];
- Display *Dpy;
- Window Win;
- GLXContext Context;
- float Angle;
- int Id;
-};
-
-
-#define MAX_WINDOWS 20
-static struct window Windows[MAX_WINDOWS];
-static int NumWindows = 0;
-
-
-static GLuint Textures[3];
-static GLuint CubeList;
-
-
-
-static void
-Error(const char *display, const char *msg)
-{
- fprintf(stderr, "Error on display %s - %s\n", display, msg);
- exit(1);
-}
-
-
-static struct window *
-AddWindow(const char *displayName, int xpos, int ypos,
- const struct window *shareWindow)
-{
- Display *dpy;
- Window win;
- GLXContext ctx;
- int attrib[] = { GLX_RGBA,
- GLX_RED_SIZE, 1,
- GLX_GREEN_SIZE, 1,
- GLX_BLUE_SIZE, 1,
- GLX_DOUBLEBUFFER,
- GLX_DEPTH_SIZE, 1,
- None };
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- XVisualInfo *visinfo;
- int width = 300, height = 300;
-
- if (NumWindows >= MAX_WINDOWS)
- return NULL;
-
- dpy = XOpenDisplay(displayName);
- if (!dpy) {
- Error(displayName, "Unable to open display");
- return NULL;
- }
-
- scrnum = DefaultScreen(dpy);
- root = RootWindow(dpy, scrnum);
-
- visinfo = glXChooseVisual(dpy, scrnum, attrib);
- if (!visinfo) {
- Error(displayName, "Unable to find RGB, double-buffered visual");
- return NULL;
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow(dpy, root, xpos, ypos, width, height,
- 0, visinfo->depth, InputOutput,
- visinfo->visual, mask, &attr);
- if (!win) {
- Error(displayName, "Couldn't create window");
- return NULL;
- }
-
- {
- XSizeHints sizehints;
- sizehints.x = xpos;
- sizehints.y = ypos;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(dpy, win, &sizehints);
- XSetStandardProperties(dpy, win, displayName, displayName,
- None, (char **)NULL, 0, &sizehints);
- }
-
-
- ctx = glXCreateContext(dpy, visinfo,
- shareWindow ? shareWindow->Context : NULL,
- True);
- if (!ctx) {
- Error(displayName, "Couldn't create GLX context");
- return NULL;
- }
-
- XMapWindow(dpy, win);
-
- if (!glXMakeCurrent(dpy, win, ctx)) {
- Error(displayName, "glXMakeCurrent failed");
- printf("glXMakeCurrent failed in Redraw()\n");
- return NULL;
- }
-
- /* save the info for this window */
- {
- static int id = 0;
- struct window *h = &Windows[NumWindows];
- strcpy(h->DisplayName, displayName);
- h->Dpy = dpy;
- h->Win = win;
- h->Context = ctx;
- h->Angle = 0.0;
- h->Id = id++;
- NumWindows++;
- return &Windows[NumWindows-1];
- }
-
-}
-
-
-static void
-InitGLstuff(struct window *h)
-{
- if (!glXMakeCurrent(h->Dpy, h->Win, h->Context)) {
- Error(h->DisplayName, "glXMakeCurrent failed in InitGLstuff");
- return;
- }
-
- glGenTextures(3, Textures);
-
- /* setup first texture object */
- {
- GLubyte image[16][16][4];
- GLint i, j;
- glBindTexture(GL_TEXTURE_2D, Textures[0]);
-
- /* red/white checkerboard */
- for (i = 0; i < 16; i++) {
- for (j = 0; j < 16; j++) {
- if ((i ^ j) & 1) {
- image[i][j][0] = 255;
- image[i][j][1] = 255;
- image[i][j][2] = 255;
- image[i][j][3] = 255;
- }
- else {
- image[i][j][0] = 255;
- image[i][j][1] = 0;
- image[i][j][2] = 0;
- image[i][j][3] = 255;
- }
- }
- }
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA,
- GL_UNSIGNED_BYTE, image);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- }
-
- /* setup second texture object */
- {
- GLubyte image[8][8][3];
- GLint i, j;
- glBindTexture(GL_TEXTURE_2D, Textures[1]);
-
- /* green/yellow checkerboard */
- for (i = 0; i < 8; i++) {
- for (j = 0; j < 8; j++) {
- if ((i ^ j) & 1) {
- image[i][j][0] = 0;
- image[i][j][1] = 255;
- image[i][j][2] = 0;
- }
- else {
- image[i][j][0] = 255;
- image[i][j][1] = 255;
- image[i][j][2] = 0;
- }
- }
- }
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 2);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 8, 8, 0, GL_RGB,
- GL_UNSIGNED_BYTE, image);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- }
-
- /* setup second texture object */
- {
- GLubyte image[4][4][3];
- GLint i, j;
- glBindTexture(GL_TEXTURE_2D, Textures[2]);
-
- /* blue/gray checkerboard */
- for (i = 0; i < 4; i++) {
- for (j = 0; j < 4; j++) {
- if ((i ^ j) & 1) {
- image[i][j][0] = 0;
- image[i][j][1] = 0;
- image[i][j][2] = 255;
- }
- else {
- image[i][j][0] = 200;
- image[i][j][1] = 200;
- image[i][j][2] = 200;
- }
- }
- }
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 2);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 4, 4, 0, GL_RGB,
- GL_UNSIGNED_BYTE, image);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- }
-
- /* Now make the cube object display list */
- CubeList = glGenLists(1);
- glNewList(CubeList, GL_COMPILE);
- {
- glBindTexture(GL_TEXTURE_2D, Textures[0]);
- glBegin(GL_POLYGON);
- glTexCoord2f(0, 0); glVertex3f(-1, -1, -1);
- glTexCoord2f(1, 0); glVertex3f(-1, 1, -1);
- glTexCoord2f(1, 1); glVertex3f(-1, 1, 1);
- glTexCoord2f(0, 1); glVertex3f(-1, -1, 1);
- glEnd();
- glBegin(GL_POLYGON);
- glTexCoord2f(0, 0); glVertex3f(1, -1, -1);
- glTexCoord2f(1, 0); glVertex3f(1, 1, -1);
- glTexCoord2f(1, 1); glVertex3f(1, 1, 1);
- glTexCoord2f(0, 1); glVertex3f(1, -1, 1);
- glEnd();
-
- glBindTexture(GL_TEXTURE_2D, Textures[1]);
- glBegin(GL_POLYGON);
- glTexCoord2f(0, 0); glVertex3f(-1, -1, -1);
- glTexCoord2f(1, 0); glVertex3f( 1, -1, -1);
- glTexCoord2f(1, 1); glVertex3f( 1, -1, 1);
- glTexCoord2f(0, 1); glVertex3f(-1, -1, 1);
- glEnd();
- glBegin(GL_POLYGON);
- glTexCoord2f(0, 0); glVertex3f(-1, 1, -1);
- glTexCoord2f(1, 0); glVertex3f( 1, 1, -1);
- glTexCoord2f(1, 1); glVertex3f( 1, 1, 1);
- glTexCoord2f(0, 1); glVertex3f(-1, 1, 1);
- glEnd();
-
- glBindTexture(GL_TEXTURE_2D, Textures[2]);
- glBegin(GL_POLYGON);
- glTexCoord2f(0, 0); glVertex3f(-1, -1, -1);
- glTexCoord2f(1, 0); glVertex3f( 1, -1, -1);
- glTexCoord2f(1, 1); glVertex3f( 1, 1, -1);
- glTexCoord2f(0, 1); glVertex3f(-1, 1, -1);
- glEnd();
- glBegin(GL_POLYGON);
- glTexCoord2f(0, 0); glVertex3f(-1, -1, 1);
- glTexCoord2f(1, 0); glVertex3f( 1, -1, 1);
- glTexCoord2f(1, 1); glVertex3f( 1, 1, 1);
- glTexCoord2f(0, 1); glVertex3f(-1, 1, 1);
- glEnd();
- }
- glEndList();
-
- printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_VENDOR: %s\n", (char *) glGetString(GL_VENDOR));
-}
-
-
-
-static void
-Redraw(struct window *h)
-{
- if (!glXMakeCurrent(h->Dpy, h->Win, h->Context)) {
- Error(h->DisplayName, "glXMakeCurrent failed");
- printf("glXMakeCurrent failed in Redraw()\n");
- return;
- }
-
- h->Angle += 1.0;
-
- glShadeModel(GL_FLAT);
- glClearColor(0.25, 0.25, 0.25, 1.0);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glEnable(GL_TEXTURE_2D);
- glEnable(GL_DEPTH_TEST);
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
- glColor3f(1, 1, 1);
-
- glPushMatrix();
- if (h->Id == 0)
- glRotatef(h->Angle, 0, 1, -1);
- else if (h->Id == 1)
- glRotatef(-(h->Angle), 0, 1, -1);
- else if (h->Id == 2)
- glRotatef(h->Angle, 0, 1, 1);
- else if (h->Id == 3)
- glRotatef(-(h->Angle), 0, 1, 1);
- glCallList(CubeList);
- glPopMatrix();
-
- glXSwapBuffers(h->Dpy, h->Win);
-}
-
-
-
-static void
-Resize(const struct window *h, unsigned int width, unsigned int height)
-{
- if (!glXMakeCurrent(h->Dpy, h->Win, h->Context)) {
- Error(h->DisplayName, "glXMakeCurrent failed in Resize()");
- return;
- }
- glViewport(0, 0, width, height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum(-1, 1, -1, 1, 2, 10);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0, 0, -4.5);
-}
-
-
-
-static void
-EventLoop(void)
-{
- while (1) {
- int i;
- for (i = 0; i < NumWindows; i++) {
- struct window *h = &Windows[i];
- while (XPending(h->Dpy) > 0) {
- XEvent event;
- XNextEvent(h->Dpy, &event);
- if (event.xany.window == h->Win) {
- switch (event.type) {
- case Expose:
- Redraw(h);
- break;
- case ConfigureNotify:
- Resize(h, event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- return;
- default:
- /*no-op*/ ;
- }
- }
- else {
- printf("window mismatch\n");
- }
- }
- Redraw(h);
- }
- usleep(1);
- }
-}
-
-
-#if 0
-static void
-PrintInfo(const struct window *h)
-{
- printf("Name: %s\n", h->DisplayName);
- printf(" Display: %p\n", (void *) h->Dpy);
- printf(" Window: 0x%x\n", (int) h->Win);
- printf(" Context: 0x%x\n", (int) h->Context);
-}
-#endif
-
-
-int
-main(int argc, char *argv[])
-{
- const char *dpyName = XDisplayName(NULL);
-
- struct window *h0, *h1, *h2, *h3;
-
- /* four windows and contexts sharing display lists and texture objects */
- h0 = AddWindow(dpyName, 10, 10, NULL);
- h1 = AddWindow(dpyName, 330, 10, h0);
- h2 = AddWindow(dpyName, 10, 350, h0);
- h3 = AddWindow(dpyName, 330, 350, h0);
-
- InitGLstuff(h0);
-
- EventLoop();
- return 0;
-}
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