[55401] | 1 | /* $Id: VBoxSDLTest.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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[1] | 2 | /** @file
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| 3 | *
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| 4 | * VBox frontends: VBoxSDL (simple frontend based on SDL):
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| 5 | * VBoxSDL testcases
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| 6 | */
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| 7 |
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| 8 | /*
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[98103] | 9 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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[1] | 10 | *
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[96407] | 11 | * This file is part of VirtualBox base platform packages, as
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| 12 | * available from https://www.virtualbox.org.
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| 13 | *
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| 14 | * This program is free software; you can redistribute it and/or
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| 15 | * modify it under the terms of the GNU General Public License
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| 16 | * as published by the Free Software Foundation, in version 3 of the
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| 17 | * License.
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| 18 | *
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| 19 | * This program is distributed in the hope that it will be useful, but
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| 20 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 22 | * General Public License for more details.
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| 23 | *
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| 24 | * You should have received a copy of the GNU General Public License
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| 25 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 26 | *
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| 27 | * SPDX-License-Identifier: GPL-3.0-only
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[1] | 28 | */
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| 29 |
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[62817] | 30 | #ifdef _MSC_VER
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| 31 | # pragma warning(push)
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| 32 | # pragma warning(disable:4121)
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| 33 | #endif
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[63567] | 34 | #if defined(RT_OS_WINDOWS) /// @todo someone please explain why we don't follow the book!
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[1] | 35 | # define _SDL_main_h
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| 36 | #endif
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| 37 | #include <SDL.h>
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[62817] | 38 | #ifdef _MSC_VER
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| 39 | # pragma warning(pop)
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| 40 | #endif
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[1] | 41 |
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| 42 | #include <iprt/assert.h>
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[5107] | 43 | #include <iprt/env.h>
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[37043] | 44 | #include <iprt/initterm.h>
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[1] | 45 | #include <iprt/stream.h>
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| 46 | #include <iprt/string.h>
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| 47 | #include <iprt/time.h>
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| 48 |
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[5108] | 49 | #include <stdlib.h>
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[1] | 50 | #include <signal.h>
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| 51 |
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| 52 | #ifdef VBOX_OPENGL
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| 53 | #include "SDL_opengl.h"
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| 54 | #endif
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| 55 |
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[3669] | 56 | #ifdef RT_OS_WINDOWS
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[1] | 57 | #define ESC_NORM
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| 58 | #define ESC_BOLD
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| 59 | #else
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| 60 | #define ESC_NORM "\033[m"
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| 61 | #define ESC_BOLD "\033[1m"
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| 62 | #endif
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| 63 |
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| 64 | static SDL_Surface *gSurfVRAM; /* SDL virtual framebuffer surface */
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| 65 | static void *gPtrVRAM; /* allocated virtual framebuffer */
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| 66 | static SDL_Surface *gScreen; /* SDL screen surface */
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| 67 | static unsigned long guGuestXRes; /* virtual framebuffer width */
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| 68 | static unsigned long guGuestYRes; /* virtual framebuffer height */
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| 69 | static unsigned long guGuestBpp; /* virtual framebuffer bits per pixel */
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| 70 | static unsigned long guMaxScreenWidth; /* max screen width SDL allows */
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| 71 | static unsigned long guMaxScreenHeight; /* max screen height SDL allows */
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| 72 | static int gfResizable = 1; /* SDL window is resizable */
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| 73 | static int gfFullscreen = 0; /* use fullscreen mode */
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| 74 | #ifdef VBOX_OPENGL
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| 75 | static unsigned long guTextureWidth; /* width of OpenGL texture */
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| 76 | static unsigned long guTextureHeight; /* height of OpenGL texture */
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| 77 | static unsigned int gTexture;
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| 78 | static int gfOpenGL; /* use OpenGL as backend */
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| 79 | #endif
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| 80 | static unsigned int guLoop = 1000; /* Number of frame redrawings for each test */
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| 81 |
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| 82 | static void bench(unsigned long w, unsigned long h, unsigned long bpp);
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| 83 | static void benchExecute(void);
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| 84 | static int checkSDL(const char *fn, int rc);
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| 85 | static void checkEvents(void);
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| 86 |
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| 87 | int
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| 88 | main(int argc, char **argv)
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| 89 | {
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| 90 | int rc;
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[38636] | 91 | RTR3InitExe(argc, &argv, 0);
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[1] | 92 |
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| 93 | for (int i = 1; i < argc; i++)
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| 94 | {
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| 95 | #ifdef VBOX_OPENGL
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| 96 | if (strcmp(argv[i], "-gl") == 0)
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| 97 | {
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| 98 | gfOpenGL = 1;
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| 99 | continue;
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| 100 | }
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| 101 | #endif
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| 102 | if (strcmp(argv[i], "-loop") == 0 && ++i < argc)
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| 103 | {
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| 104 | guLoop = atoi(argv[i]);
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| 105 | continue;
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| 106 | }
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| 107 | RTPrintf("Unrecognized option '%s'\n", argv[i]);
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| 108 | return -1;
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| 109 | }
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| 110 |
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[3669] | 111 | #ifdef RT_OS_WINDOWS
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[1] | 112 | /* Default to DirectX if nothing else set. "windib" would be possible. */
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[25942] | 113 | if (!RTEnvExist("SDL_VIDEODRIVER"))
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[1] | 114 | {
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| 115 | _putenv("SDL_VIDEODRIVER=directx");
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| 116 | }
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| 117 | #endif
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| 118 |
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[3669] | 119 | #ifdef RT_OS_WINDOWS
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[1] | 120 | _putenv("SDL_VIDEO_WINDOW_POS=0,0");
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| 121 | #else
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[11419] | 122 | RTEnvSet("SDL_VIDEO_WINDOW_POS", "0,0");
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[1] | 123 | #endif
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| 124 |
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| 125 | rc = SDL_InitSubSystem(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE);
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| 126 | if (rc != 0)
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| 127 | {
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| 128 | RTPrintf("Error: SDL_InitSubSystem failed with message '%s'\n", SDL_GetError());
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| 129 | return -1;
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| 130 | }
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| 131 |
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| 132 | /* output what SDL is capable of */
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| 133 | const SDL_VideoInfo *videoInfo = SDL_GetVideoInfo();
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| 134 |
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| 135 | if (!videoInfo)
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| 136 | {
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| 137 | RTPrintf("No SDL video info available!\n");
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| 138 | return -1;
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| 139 | }
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| 140 |
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| 141 | RTPrintf("SDL capabilities:\n");
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| 142 | RTPrintf(" Hardware surface support: %s\n", videoInfo->hw_available ? "yes" : "no");
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| 143 | RTPrintf(" Window manager available: %s\n", videoInfo->wm_available ? "yes" : "no");
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| 144 | RTPrintf(" Screen to screen blits accelerated: %s\n", videoInfo->blit_hw ? "yes" : "no");
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| 145 | RTPrintf(" Screen to screen colorkey blits accelerated: %s\n", videoInfo->blit_hw_CC ? "yes" : "no");
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| 146 | RTPrintf(" Screen to screen alpha blits accelerated: %s\n", videoInfo->blit_hw_A ? "yes" : "no");
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| 147 | RTPrintf(" Memory to screen blits accelerated: %s\n", videoInfo->blit_sw ? "yes" : "no");
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| 148 | RTPrintf(" Memory to screen colorkey blits accelerated: %s\n", videoInfo->blit_sw_CC ? "yes" : "no");
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| 149 | RTPrintf(" Memory to screen alpha blits accelerated: %s\n", videoInfo->blit_sw_A ? "yes" : "no");
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| 150 | RTPrintf(" Color fills accelerated: %s\n", videoInfo->blit_fill ? "yes" : "no");
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| 151 | RTPrintf(" Video memory in kilobytes: %d\n", videoInfo->video_mem);
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| 152 | RTPrintf(" Optimal bpp mode: %d\n", videoInfo->vfmt->BitsPerPixel);
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| 153 | char buf[256];
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[5107] | 154 | RTPrintf("Video driver SDL_VIDEODRIVER / active: %s/%s\n", RTEnvGet("SDL_VIDEODRIVER"),
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[1] | 155 | SDL_VideoDriverName(buf, sizeof(buf)));
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| 156 |
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| 157 | RTPrintf("\n"
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| 158 | "Starting tests. Any key pressed inside the SDL window will abort this\n"
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| 159 | "program at the end of the current test. Iterations = %u\n", guLoop);
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| 160 |
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| 161 | #ifdef VBOX_OPENGL
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| 162 | RTPrintf("\n========== "ESC_BOLD"OpenGL is %s"ESC_NORM" ==========\n",
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| 163 | gfOpenGL ? "ON" : "OFF");
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| 164 | #endif
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| 165 | bench( 640, 480, 16); bench( 640, 480, 24); bench( 640, 480, 32);
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| 166 | bench(1024, 768, 16); bench(1024, 768, 24); bench(1024, 768, 32);
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| 167 | bench(1280, 1024, 16); bench(1280, 1024, 24); bench(1280, 1024, 32);
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| 168 |
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| 169 | RTPrintf("\nSuccess!\n");
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[613] | 170 | return 0;
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[1] | 171 | }
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| 172 |
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| 173 | /**
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| 174 | * Method that does the actual resize of the guest framebuffer and
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| 175 | * then changes the SDL framebuffer setup.
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| 176 | */
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| 177 | static void bench(unsigned long w, unsigned long h, unsigned long bpp)
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| 178 | {
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| 179 | Uint32 Rmask, Gmask, Bmask, Amask = 0;
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| 180 | Uint32 Rsize, Gsize, Bsize;
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| 181 | Uint32 newWidth, newHeight;
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| 182 |
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| 183 | guGuestXRes = w;
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| 184 | guGuestYRes = h;
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| 185 | guGuestBpp = bpp;
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| 186 |
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| 187 | RTPrintf("\n");
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| 188 |
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| 189 | /* a different format we support directly? */
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| 190 | switch (guGuestBpp)
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| 191 | {
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| 192 | case 16:
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| 193 | {
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| 194 | Rmask = 0xF800;
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| 195 | Gmask = 0x07E0;
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| 196 | Bmask = 0x001F;
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| 197 | Amask = 0x0000;
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| 198 | Rsize = 5;
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| 199 | Gsize = 6;
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| 200 | Bsize = 5;
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| 201 | break;
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| 202 | }
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| 203 |
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| 204 | case 24:
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| 205 | {
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| 206 | Rmask = 0x00FF0000;
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| 207 | Gmask = 0x0000FF00;
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| 208 | Bmask = 0x000000FF;
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| 209 | Amask = 0x00000000;
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| 210 | Rsize = 8;
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| 211 | Gsize = 8;
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| 212 | Bsize = 8;
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| 213 | break;
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| 214 | }
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| 215 |
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| 216 | default:
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| 217 | Rmask = 0x00FF0000;
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| 218 | Gmask = 0x0000FF00;
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| 219 | Bmask = 0x000000FF;
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| 220 | Amask = 0x00000000;
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| 221 | Rsize = 8;
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| 222 | Gsize = 8;
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| 223 | Bsize = 8;
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| 224 | break;
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| 225 | }
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| 226 |
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| 227 | int sdlFlags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
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| 228 | #ifdef VBOX_OPENGL
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| 229 | if (gfOpenGL)
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| 230 | sdlFlags |= SDL_OPENGL;
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| 231 | #endif
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| 232 | if (gfResizable)
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| 233 | sdlFlags |= SDL_RESIZABLE;
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| 234 | if (gfFullscreen)
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| 235 | sdlFlags |= SDL_FULLSCREEN;
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| 236 |
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| 237 | /*
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| 238 | * Now we have to check whether there are video mode restrictions
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| 239 | */
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| 240 | SDL_Rect **modes;
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| 241 | /* Get available fullscreen/hardware modes */
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| 242 | modes = SDL_ListModes(NULL, sdlFlags);
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| 243 | if (modes == NULL)
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| 244 | {
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| 245 | RTPrintf("Error: SDL_ListModes failed with message '%s'\n", SDL_GetError());
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| 246 | return;
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| 247 | }
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| 248 |
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| 249 | /* -1 means that any mode is possible (usually non fullscreen) */
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| 250 | if (modes != (SDL_Rect **)-1)
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| 251 | {
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| 252 | /*
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| 253 | * according to the SDL documentation, the API guarantees that
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| 254 | * the modes are sorted from larger to smaller, so we just
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| 255 | * take the first entry as the maximum.
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| 256 | */
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| 257 | guMaxScreenWidth = modes[0]->w;
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| 258 | guMaxScreenHeight = modes[0]->h;
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| 259 | }
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| 260 | else
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| 261 | {
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| 262 | /* no restriction */
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[62817] | 263 | guMaxScreenWidth = ~0U;
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| 264 | guMaxScreenHeight = ~0U;
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[1] | 265 | }
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| 266 |
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| 267 | newWidth = RT_MIN(guMaxScreenWidth, guGuestXRes);
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| 268 | newHeight = RT_MIN(guMaxScreenHeight, guGuestYRes);
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| 269 |
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| 270 | /*
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| 271 | * Now set the screen resolution and get the surface pointer
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| 272 | * @todo BPP is not supported!
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| 273 | */
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| 274 | #ifdef VBOX_OPENGL
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| 275 | if (gfOpenGL)
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| 276 | {
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| 277 | checkSDL("SDL_GL_SetAttribute", SDL_GL_SetAttribute(SDL_GL_RED_SIZE, Rsize));
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| 278 | checkSDL("SDL_GL_SetAttribute", SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, Gsize));
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| 279 | checkSDL("SDL_GL_SetAttribute", SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, Bsize));
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| 280 | checkSDL("SDL_GL_SetAttribute", SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 0));
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| 281 | }
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[48699] | 282 | #else
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| 283 | NOREF(Rsize); NOREF(Gsize); NOREF(Bsize);
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[1] | 284 | #endif
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| 285 |
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[58035] | 286 | RTPrintf("Testing " ESC_BOLD "%ldx%ld@%ld" ESC_NORM "\n", guGuestXRes, guGuestYRes, guGuestBpp);
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[1] | 287 |
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| 288 | gScreen = SDL_SetVideoMode(newWidth, newHeight, 0, sdlFlags);
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| 289 | if (!gScreen)
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| 290 | {
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| 291 | RTPrintf("SDL_SetVideoMode failed (%s)\n", SDL_GetError());
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| 292 | return;
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| 293 | }
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| 294 |
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| 295 | /* first free the current surface */
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| 296 | if (gSurfVRAM)
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| 297 | {
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| 298 | SDL_FreeSurface(gSurfVRAM);
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| 299 | gSurfVRAM = NULL;
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| 300 | }
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| 301 | if (gPtrVRAM)
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| 302 | {
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| 303 | free(gPtrVRAM);
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| 304 | gPtrVRAM = NULL;
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| 305 | }
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| 306 |
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| 307 | if (gScreen->format->BitsPerPixel != guGuestBpp)
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| 308 | {
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| 309 | /* Create a source surface from guest VRAM. */
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| 310 | int bytes_per_pixel = (guGuestBpp + 7) / 8;
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| 311 | gPtrVRAM = malloc(guGuestXRes * guGuestYRes * bytes_per_pixel);
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| 312 | gSurfVRAM = SDL_CreateRGBSurfaceFrom(gPtrVRAM, guGuestXRes, guGuestYRes, guGuestBpp,
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| 313 | bytes_per_pixel * guGuestXRes,
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| 314 | Rmask, Gmask, Bmask, Amask);
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| 315 | }
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| 316 | else
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| 317 | {
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| 318 | /* Create a software surface for which SDL allocates the RAM */
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| 319 | gSurfVRAM = SDL_CreateRGBSurface(SDL_SWSURFACE, guGuestXRes, guGuestYRes, guGuestBpp,
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| 320 | Rmask, Gmask, Bmask, Amask);
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| 321 | }
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| 322 |
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| 323 | if (!gSurfVRAM)
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| 324 | {
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| 325 | RTPrintf("Failed to allocate surface %ldx%ld@%ld\n",
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| 326 | guGuestXRes, guGuestYRes, guGuestBpp);
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| 327 | return;
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| 328 | }
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| 329 |
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| 330 | RTPrintf(" gScreen=%dx%d@%d (surface: %s)\n",
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| 331 | gScreen->w, gScreen->h, gScreen->format->BitsPerPixel,
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| 332 | (gScreen->flags & SDL_HWSURFACE) == 0 ? "software" : "hardware");
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| 333 |
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| 334 | SDL_Rect rect = { 0, 0, (Uint16)guGuestXRes, (Uint16)guGuestYRes };
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| 335 | checkSDL("SDL_FillRect",
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| 336 | SDL_FillRect(gSurfVRAM, &rect,
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| 337 | SDL_MapRGB(gSurfVRAM->format, 0x5F, 0x6F, 0x1F)));
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| 338 |
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| 339 | #ifdef VBOX_OPENGL
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| 340 | if (gfOpenGL)
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| 341 | {
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| 342 | int r, g, b, d, o;
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| 343 | SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &r);
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| 344 | SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &g);
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| 345 | SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &b);
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| 346 | SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &d);
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| 347 | SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &o);
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| 348 | RTPrintf(" OpenGL ctxt red=%d, green=%d, blue=%d, depth=%d, dbl=%d", r, g, b, d, o);
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| 349 |
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| 350 | glEnable(GL_TEXTURE_2D);
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| 351 | glDisable(GL_BLEND);
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| 352 | glDisable(GL_DEPTH_TEST);
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| 353 | glDepthMask(GL_FALSE);
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| 354 | glGenTextures(1, &gTexture);
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| 355 | glBindTexture(GL_TEXTURE_2D, gTexture);
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| 356 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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| 357 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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| 358 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
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| 359 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
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| 360 |
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[12918] | 361 | for (guTextureWidth = 32; guTextureWidth < newWidth; guTextureWidth <<= 1)
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| 362 | ;
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| 363 | for (guTextureHeight = 32; guTextureHeight < newHeight; guTextureHeight <<= 1)
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| 364 | ;
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[1] | 365 | RTPrintf(", tex %ldx%ld\n", guTextureWidth, guTextureHeight);
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| 366 |
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| 367 | switch (guGuestBpp)
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| 368 | {
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| 369 | case 16: glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB5, guTextureWidth, guTextureHeight, 0,
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| 370 | GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 0);
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| 371 | break;
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| 372 | case 24: glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, guTextureWidth, guTextureHeight, 0,
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| 373 | GL_BGR, GL_UNSIGNED_BYTE, 0);
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| 374 | break;
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| 375 | case 32: glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, guTextureWidth, guTextureHeight, 0,
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| 376 | GL_BGRA, GL_UNSIGNED_BYTE, 0);
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| 377 | break;
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| 378 | default: RTPrintf("guGuestBpp=%d?\n", guGuestBpp);
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| 379 | return;
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| 380 | }
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| 381 |
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| 382 | glViewport(0, 0, newWidth, newHeight);
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| 383 | glMatrixMode(GL_PROJECTION);
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| 384 | glLoadIdentity();
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| 385 | glOrtho(0.0, newWidth, newHeight, 0.0, -1.0, 1.0);
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| 386 | }
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| 387 | #endif
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| 388 |
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| 389 | checkEvents();
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| 390 | benchExecute();
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| 391 |
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| 392 | #ifdef VBOX_OPENGL
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| 393 | if (gfOpenGL)
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| 394 | {
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| 395 | glDeleteTextures(1, &gTexture);
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| 396 | }
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| 397 | #endif
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| 398 | }
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| 399 |
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| 400 | static void benchExecute()
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| 401 | {
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| 402 | SDL_Rect rect = { 0, 0, (Uint16)guGuestXRes, (Uint16)guGuestYRes };
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| 403 | RTTIMESPEC t1, t2;
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| 404 |
|
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| 405 | RTTimeNow(&t1);
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| 406 | for (unsigned i=0; i<guLoop; i++)
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| 407 | {
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| 408 | #ifdef VBOX_OPENGL
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| 409 | if (!gfOpenGL)
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| 410 | {
|
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| 411 | #endif
|
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| 412 | /* SDL backend */
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| 413 | checkSDL("SDL_BlitSurface", SDL_BlitSurface(gSurfVRAM, &rect, gScreen, &rect));
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| 414 | if ((gScreen->flags & SDL_HWSURFACE) == 0)
|
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| 415 | SDL_UpdateRect(gScreen, rect.x, rect.y, rect.w, rect.h);
|
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| 416 | #ifdef VBOX_OPENGL
|
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| 417 | }
|
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| 418 | else
|
---|
| 419 | {
|
---|
| 420 | /* OpenGL backend */
|
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| 421 | glBindTexture(GL_TEXTURE_2D, gTexture);
|
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| 422 | glPixelStorei(GL_UNPACK_SKIP_PIXELS, rect.x);
|
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| 423 | glPixelStorei(GL_UNPACK_SKIP_ROWS, rect.y);
|
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| 424 | glPixelStorei(GL_UNPACK_ROW_LENGTH, gSurfVRAM->pitch / gSurfVRAM->format->BytesPerPixel);
|
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| 425 | switch (gSurfVRAM->format->BitsPerPixel)
|
---|
| 426 | {
|
---|
| 427 | case 16: glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rect.w, rect.h,
|
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| 428 | GL_RGB, GL_UNSIGNED_SHORT_5_6_5, gSurfVRAM->pixels);
|
---|
| 429 | break;
|
---|
| 430 | case 24: glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rect.w, rect.h,
|
---|
| 431 | GL_BGR, GL_UNSIGNED_BYTE, gSurfVRAM->pixels);
|
---|
| 432 | break;
|
---|
| 433 | case 32: glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rect.w, rect.h,
|
---|
| 434 | GL_BGRA, GL_UNSIGNED_BYTE, gSurfVRAM->pixels);
|
---|
| 435 | break;
|
---|
| 436 | default: RTPrintf("BitsPerPixel=%d?\n", gSurfVRAM->format->BitsPerPixel);
|
---|
| 437 | return;
|
---|
| 438 | }
|
---|
| 439 | GLfloat tx = (GLfloat)((float)rect.w) / guTextureWidth;
|
---|
| 440 | GLfloat ty = (GLfloat)((float)rect.h) / guTextureHeight;
|
---|
| 441 | glBegin(GL_QUADS);
|
---|
| 442 | glColor4f(1.0, 1.0, 1.0, 1.0);
|
---|
| 443 | glTexCoord2f(0.0, 0.0); glVertex2i(rect.x, rect.y );
|
---|
| 444 | glTexCoord2f(0.0, ty); glVertex2i(rect.x, rect.y + rect.h);
|
---|
| 445 | glTexCoord2f(tx, ty); glVertex2i(rect.x + rect.w, rect.y + rect.h);
|
---|
| 446 | glTexCoord2f(tx, 0.0); glVertex2i(rect.x + rect.w, rect.y );
|
---|
| 447 | glEnd();
|
---|
| 448 | glFlush();
|
---|
| 449 | }
|
---|
| 450 | #endif
|
---|
| 451 | }
|
---|
| 452 | RTTimeNow(&t2);
|
---|
| 453 | int64_t ms = RTTimeSpecGetMilli(&t2) - RTTimeSpecGetMilli(&t1);
|
---|
| 454 | printf(" %.1fms/frame\n", (double)ms / guLoop);
|
---|
| 455 | }
|
---|
| 456 |
|
---|
| 457 | static int checkSDL(const char *fn, int rc)
|
---|
| 458 | {
|
---|
| 459 | if (rc == -1)
|
---|
[58035] | 460 | RTPrintf("" ESC_BOLD "%s() failed:" ESC_NORM " '%s'\n", fn, SDL_GetError());
|
---|
[1] | 461 |
|
---|
| 462 | return rc;
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | static void checkEvents(void)
|
---|
| 466 | {
|
---|
| 467 | SDL_Event event;
|
---|
| 468 | while (SDL_PollEvent(&event))
|
---|
| 469 | {
|
---|
| 470 | switch (event.type)
|
---|
| 471 | {
|
---|
| 472 | case SDL_KEYDOWN:
|
---|
| 473 | RTPrintf("\nKey pressed, exiting ...\n");
|
---|
| 474 | exit(-1);
|
---|
| 475 | break;
|
---|
| 476 | }
|
---|
| 477 | }
|
---|
| 478 | }
|
---|