summaryrefslogtreecommitdiff
path: root/progs/egl/xegl_tri.c
diff options
context:
space:
mode:
Diffstat (limited to 'progs/egl/xegl_tri.c')
-rw-r--r--progs/egl/xegl_tri.c359
1 files changed, 0 insertions, 359 deletions
diff --git a/progs/egl/xegl_tri.c b/progs/egl/xegl_tri.c
deleted file mode 100644
index 65f352ddfa..0000000000
--- a/progs/egl/xegl_tri.c
+++ /dev/null
@@ -1,359 +0,0 @@
-/*
- * Copyright (C) 2008 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.
- */
-
-/*
- * Draw a triangle with X/EGL.
- * Brian Paul
- * 3 June 2008
- */
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <GL/gl.h> /* using full OpenGL for now */
-#include <GLES/egl.h>
-
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-
-
-static void
-draw(void)
-{
- static const GLfloat verts[3][2] = {
- { -1, -1 },
- { 1, -1 },
- { 0, 1 }
- };
- static const GLfloat colors[3][3] = {
- { 1, 0, 0 },
- { 0, 1, 0 },
- { 0, 0, 1 }
- };
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_roty, 0, 1, 0);
- glRotatef(view_rotz, 0, 0, 1);
-
- {
- glVertexPointer(2, GL_FLOAT, 0, verts);
- glColorPointer(3, GL_FLOAT, 0, colors);
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_COLOR_ARRAY);
-
- glDrawArrays(GL_TRIANGLES, 0, 3);
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_COLOR_ARRAY);
- }
-
- glPopMatrix();
-}
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- GLfloat ar = (GLfloat) width / (GLfloat) height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -10.0);
-}
-
-
-static void
-init(void)
-{
- glClearColor(0.4, 0.4, 0.4, 0.0);
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
- eglBindAPI(EGL_OPENGL_API);
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx) {
- printf("Error: glXCreateContext failed\n");
- exit(1);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf)
-{
- while (1) {
- int redraw = 0;
- XEvent event;
-
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
-
- if (redraw) {
- draw();
- eglSwapBuffers(egl_dpy, egl_surf);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 300, winHeight = 300;
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "xegl_tri", 0, 0, winWidth, winHeight,
- &win, &egl_ctx, &egl_surf);
-
- XMapWindow(x_dpy, win);
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- 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));
- }
-
- init();
-
- /* Set initial projection/viewing transformation.
- * We can't be sure we'll get a ConfigureNotify event when the window
- * first appears.
- */
- reshape(winWidth, winHeight);
-
- event_loop(x_dpy, win, egl_dpy, egl_surf);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 17:07:32 +0000