/* * Copyright (C) 2010 LunarG Inc. * * 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 * THE AUTHORS OR COPYRIGHT HOLDERS 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. * * Authors: * Chia-I Wu <olv@lunarg.com> */ #include <stdio.h> #include <string.h> #include <sys/time.h> #define EGL_EGLEXT_PROTOTYPES #include "EGL/egl.h" #include "EGL/eglext.h" #include "eglutint.h" #define MAX_MODES 100 static EGLScreenMESA kms_screen; static EGLModeMESA kms_mode; static EGLint kms_width, kms_height; void _eglutNativeInitDisplay(void) { _eglut->native_dpy = EGL_DEFAULT_DISPLAY; _eglut->surface_type = EGL_SCREEN_BIT_MESA; } void _eglutNativeFiniDisplay(void) { kms_screen = 0; kms_mode = 0; kms_width = 0; kms_height = 0; } static void init_kms(void) { EGLModeMESA modes[MAX_MODES]; EGLint num_screens, num_modes; EGLint width, height, best_mode; EGLint i; if (!eglGetScreensMESA(_eglut->dpy, &kms_screen, 1, &num_screens) || !num_screens) _eglutFatal("eglGetScreensMESA failed\n"); if (!eglGetModesMESA(_eglut->dpy, kms_screen, modes, MAX_MODES, &num_modes) || !num_modes) _eglutFatal("eglGetModesMESA failed!\n"); printf("Found %d modes:\n", num_modes); best_mode = 0; width = 0; height = 0; for (i = 0; i < num_modes; i++) { EGLint w, h; eglGetModeAttribMESA(_eglut->dpy, modes[i], EGL_WIDTH, &w); eglGetModeAttribMESA(_eglut->dpy, modes[i], EGL_HEIGHT, &h); printf("%3d: %d x %d\n", i, w, h); if (w > width && h > height) { width = w; height = h; best_mode = i; } } printf("Will use screen size: %d x %d\n", width, height); kms_mode = modes[best_mode]; kms_width = width; kms_height = height; } void _eglutNativeInitWindow(struct eglut_window *win, const char *title, int x, int y, int w, int h) { EGLint surf_attribs[16]; EGLint i; const char *exts; exts = eglQueryString(_eglut->dpy, EGL_EXTENSIONS); if (!exts || !strstr(exts, "EGL_MESA_screen_surface")) _eglutFatal("EGL_MESA_screen_surface is not supported\n"); init_kms(); i = 0; surf_attribs[i++] = EGL_WIDTH; surf_attribs[i++] = kms_width; surf_attribs[i++] = EGL_HEIGHT; surf_attribs[i++] = kms_height; surf_attribs[i++] = EGL_NONE; /* create surface */ win->native.u.surface = eglCreateScreenSurfaceMESA(_eglut->dpy, win->config, surf_attribs); if (win->native.u.surface == EGL_NO_SURFACE) _eglutFatal("eglCreateScreenSurfaceMESA failed\n"); if (!eglShowScreenSurfaceMESA(_eglut->dpy, kms_screen, win->native.u.surface, kms_mode)) _eglutFatal("eglShowScreenSurfaceMESA failed\n"); win->native.width = kms_width; win->native.height = kms_height; } void _eglutNativeFiniWindow(struct eglut_window *win) { eglShowScreenSurfaceMESA(_eglut->dpy, kms_screen, EGL_NO_SURFACE, 0); eglDestroySurface(_eglut->dpy, win->native.u.surface); } void _eglutNativeEventLoop(void) { int start = _eglutNow(); int frames = 0; _eglut->redisplay = 1; while (!_eglut->stop_loop) { struct eglut_window *win = _eglut->current; int now = _eglutNow(); if (now - start > 5000) { double elapsed = (double) (now - start) / 1000.0; printf("%d frames in %3.1f seconds = %6.3f FPS\n", frames, elapsed, frames / elapsed); fflush(stdout); start = now; frames = 0; /* send escape */ if (win->keyboard_cb) win->keyboard_cb(27); } if (_eglut->idle_cb) _eglut->idle_cb(); if (_eglut->redisplay) { _eglut->redisplay = 0; if (win->display_cb) win->display_cb(); eglSwapBuffers(_eglut->dpy, win->surface); frames++; } } }