1 | /* $Id: VBoxSDLTest.cpp 96407 2022-08-22 17:43:14Z vboxsync $ */
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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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9 | * Copyright (C) 2006-2022 Oracle and/or its affiliates.
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10 | *
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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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28 | */
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29 |
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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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34 | #if defined(RT_OS_WINDOWS) /// @todo someone please explain why we don't follow the book!
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35 | # define _SDL_main_h
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36 | #endif
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37 | #include <SDL.h>
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38 | #ifdef _MSC_VER
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39 | # pragma warning(pop)
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40 | #endif
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41 |
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42 | #include <iprt/assert.h>
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43 | #include <iprt/env.h>
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44 | #include <iprt/initterm.h>
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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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49 | #include <stdlib.h>
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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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56 | #ifdef RT_OS_WINDOWS
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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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91 | RTR3InitExe(argc, &argv, 0);
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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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111 | #ifdef RT_OS_WINDOWS
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112 | /* Default to DirectX if nothing else set. "windib" would be possible. */
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113 | if (!RTEnvExist("SDL_VIDEODRIVER"))
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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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119 | #ifdef RT_OS_WINDOWS
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120 | _putenv("SDL_VIDEO_WINDOW_POS=0,0");
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121 | #else
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122 | RTEnvSet("SDL_VIDEO_WINDOW_POS", "0,0");
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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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154 | RTPrintf("Video driver SDL_VIDEODRIVER / active: %s/%s\n", RTEnvGet("SDL_VIDEODRIVER"),
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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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170 | return 0;
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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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263 | guMaxScreenWidth = ~0U;
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264 | guMaxScreenHeight = ~0U;
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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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282 | #else
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283 | NOREF(Rsize); NOREF(Gsize); NOREF(Bsize);
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284 | #endif
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285 |
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286 | RTPrintf("Testing " ESC_BOLD "%ldx%ld@%ld" ESC_NORM "\n", guGuestXRes, guGuestYRes, guGuestBpp);
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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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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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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
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419 | {
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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)
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426 | {
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427 | case 16: glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rect.w, rect.h,
|
---|
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)
|
---|
460 | RTPrintf("" ESC_BOLD "%s() failed:" ESC_NORM " '%s'\n", fn, SDL_GetError());
|
---|
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 | }
|
---|