debuggers.hg
changeset 17263:cbb0dffdc07a
ioemu: SDL rendering using OpenGL
Add opengl support for rendering the guest framebuffer in the SDL
window. SDL is needed anyway to open the window and handle the
events. Opengl rendering is optional and can be turned off at both
compile time and in the vm configuration file.
Some of the benefits of using opengl are:
- faster rendering, less CPU intensive, especially with good graphic
cards;
- makes the window resizing possible and hardware accelerated, thus
very efficient and smooth;
- allows other optimizations like sharing directly a buffer in vram
with the guest (not yet implemented).
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Add opengl support for rendering the guest framebuffer in the SDL
window. SDL is needed anyway to open the window and handle the
events. Opengl rendering is optional and can be turned off at both
compile time and in the vm configuration file.
Some of the benefits of using opengl are:
- faster rendering, less CPU intensive, especially with good graphic
cards;
- makes the window resizing possible and hardware accelerated, thus
very efficient and smooth;
- allows other optimizations like sharing directly a buffer in vram
with the guest (not yet implemented).
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
author | Keir Fraser <keir.fraser@citrix.com> |
---|---|
date | Tue Mar 18 11:47:58 2008 +0000 (2008-03-18) |
parents | ef85eeaf439a |
children | 8cc1ed987d5f |
files | tools/examples/xmexample.hvm tools/ioemu/configure tools/ioemu/sdl.c tools/ioemu/vl.c tools/ioemu/vl.h tools/python/xen/xend/XendConfig.py tools/python/xen/xend/image.py tools/python/xen/xm/create.py |
line diff
1.1 --- a/tools/examples/xmexample.hvm Tue Mar 18 11:40:30 2008 +0000 1.2 +++ b/tools/examples/xmexample.hvm Tue Mar 18 11:47:58 2008 +0000 1.3 @@ -135,6 +135,11 @@ device_model = '/usr/' + arch_libdir + ' 1.4 sdl=0 1.5 1.6 #---------------------------------------------------------------------------- 1.7 +# enable OpenGL for texture rendering inside the SDL window, default = 1 1.8 +# valid only if sdl is enabled. 1.9 +opengl=1 1.10 + 1.11 +#---------------------------------------------------------------------------- 1.12 # enable VNC library for graphics, default = 1 1.13 vnc=1 1.14
2.1 --- a/tools/ioemu/configure Tue Mar 18 11:40:30 2008 +0000 2.2 +++ b/tools/ioemu/configure Tue Mar 18 11:47:58 2008 +0000 2.3 @@ -190,6 +190,8 @@ for opt do 2.4 ;; 2.5 --disable-sdl) sdl="no" 2.6 ;; 2.7 + --disable-opengl) opengl="no" 2.8 + ;; 2.9 --enable-coreaudio) coreaudio="yes" 2.10 ;; 2.11 --enable-alsa) alsa="yes" 2.12 @@ -539,6 +541,26 @@ else 2.13 fi # -z $sdl 2.14 2.15 ########################################## 2.16 +# OpenGL test 2.17 + 2.18 +if test -z "$opengl" && test "$sdl" = "yes" 2.19 +then 2.20 +cat > $TMPC << EOF 2.21 +#include <GL/gl.h> 2.22 +#ifndef GL_TEXTURE_RECTANGLE_ARB 2.23 +#error "Opengl doesn't support GL_TEXTURE_RECTANGLE_ARB" 2.24 +#endif 2.25 +int main( void ) { return (int) glGetString(GL_EXTENSIONS); } 2.26 +EOF 2.27 +if $cc -o $TMPE $TMPC -lGL 2> /dev/null 2.28 +then 2.29 +opengl="yes" 2.30 +else 2.31 +opengl="no" 2.32 +fi 2.33 +fi 2.34 + 2.35 +########################################## 2.36 # alsa sound support libraries 2.37 2.38 if test "$alsa" = "yes" ; then 2.39 @@ -612,6 +634,7 @@ echo "SDL support $sdl" 2.40 if test "$sdl" != "no" ; then 2.41 echo "SDL static link $sdl_static" 2.42 fi 2.43 +echo "OpenGL support $opengl" 2.44 echo "mingw32 support $mingw32" 2.45 echo "Adlib support $adlib" 2.46 echo "CoreAudio support $coreaudio" 2.47 @@ -995,6 +1018,15 @@ if test "$target_user_only" = "no"; then 2.48 fi 2.49 fi 2.50 2.51 +if test $opengl = "yes" 2.52 +then 2.53 + echo "#define CONFIG_OPENGL 1" >> $config_h 2.54 + echo "CONFIG_OPENGL=yes" >> $config_mak 2.55 + echo "SDL_CFLAGS+=-I/usr/include/GL" >> $config_mak 2.56 + echo "SDL_LIBS+=-lXext" >> $config_mak 2.57 + echo "SDL_LIBS+=-lGL" >> $config_mak 2.58 +fi 2.59 + 2.60 if test "$cocoa" = "yes" ; then 2.61 echo "#define CONFIG_COCOA 1" >> $config_h 2.62 echo "CONFIG_COCOA=yes" >> $config_mak
3.1 --- a/tools/ioemu/sdl.c Tue Mar 18 11:40:30 2008 +0000 3.2 +++ b/tools/ioemu/sdl.c Tue Mar 18 11:47:58 2008 +0000 3.3 @@ -29,6 +29,10 @@ 3.4 #include <signal.h> 3.5 #endif 3.6 3.7 +#ifdef CONFIG_OPENGL 3.8 +#include <SDL_opengl.h> 3.9 +#endif 3.10 + 3.11 static SDL_Surface *screen; 3.12 static SDL_Surface *shared = NULL; 3.13 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ 3.14 @@ -44,6 +48,99 @@ static int width, height; 3.15 static SDL_Cursor *sdl_cursor_normal; 3.16 static SDL_Cursor *sdl_cursor_hidden; 3.17 static int absolute_enabled = 0; 3.18 +static int opengl_enabled; 3.19 + 3.20 +#ifdef CONFIG_OPENGL 3.21 +static GLint tex_format; 3.22 +static GLint tex_type; 3.23 +static GLuint texture_ref = 0; 3.24 +static GLint gl_format; 3.25 + 3.26 +static void opengl_setdata(DisplayState *ds, void *pixels) 3.27 +{ 3.28 + glEnable(GL_TEXTURE_RECTANGLE_ARB); 3.29 + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 3.30 + glClearColor(0, 0, 0, 0); 3.31 + glDisable(GL_BLEND); 3.32 + glDisable(GL_LIGHTING); 3.33 + glDisable(GL_DEPTH_TEST); 3.34 + glDepthMask(GL_FALSE); 3.35 + glDisable(GL_CULL_FACE); 3.36 + glViewport( 0, 0, screen->w, screen->h); 3.37 + glMatrixMode(GL_PROJECTION); 3.38 + glLoadIdentity(); 3.39 + glOrtho(0, screen->w, screen->h, 0, -1,1); 3.40 + glMatrixMode(GL_MODELVIEW); 3.41 + glLoadIdentity(); 3.42 + glClear(GL_COLOR_BUFFER_BIT); 3.43 + ds->data = pixels; 3.44 + 3.45 + if (texture_ref) { 3.46 + glDeleteTextures(1, &texture_ref); 3.47 + texture_ref = 0; 3.48 + } 3.49 + 3.50 + glGenTextures(1, &texture_ref); 3.51 + glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture_ref); 3.52 + glPixelStorei(GL_UNPACK_LSB_FIRST, 1); 3.53 + switch (ds->depth) { 3.54 + case 8: 3.55 + tex_format = GL_RGB; 3.56 + tex_type = GL_UNSIGNED_BYTE_3_3_2; 3.57 + glPixelStorei (GL_UNPACK_ALIGNMENT, 1); 3.58 + break; 3.59 + case 16: 3.60 + tex_format = GL_RGB; 3.61 + tex_type = GL_UNSIGNED_SHORT_5_6_5; 3.62 + glPixelStorei (GL_UNPACK_ALIGNMENT, 2); 3.63 + break; 3.64 + case 24: 3.65 + tex_format = GL_BGR; 3.66 + tex_type = GL_UNSIGNED_BYTE; 3.67 + glPixelStorei (GL_UNPACK_ALIGNMENT, 1); 3.68 + break; 3.69 + case 32: 3.70 + if (!ds->bgr) { 3.71 + tex_format = GL_BGRA; 3.72 + tex_type = GL_UNSIGNED_BYTE; 3.73 + } else { 3.74 + tex_format = GL_RGBA; 3.75 + tex_type = GL_UNSIGNED_BYTE; 3.76 + } 3.77 + glPixelStorei (GL_UNPACK_ALIGNMENT, 4); 3.78 + break; 3.79 + } 3.80 + glPixelStorei(GL_UNPACK_ROW_LENGTH, (ds->linesize * 8 / ds->depth) - ds->width); 3.81 + glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, gl_format, ds->width, ds->height, 0, tex_format, tex_type, pixels); 3.82 + glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_PRIORITY, 1.0); 3.83 + glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 3.84 + glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 3.85 + glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 3.86 + glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 3.87 + glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0); 3.88 +} 3.89 + 3.90 +static void opengl_update(DisplayState *ds, int x, int y, int w, int h) 3.91 +{ 3.92 + int bpp = ds->depth / 8; 3.93 + GLvoid *pixels = ds->data + y * ds->linesize + x * bpp; 3.94 + glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture_ref); 3.95 + glPixelStorei(GL_UNPACK_ROW_LENGTH, (ds->linesize / bpp) - w); 3.96 + glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, x, y, w, h, tex_format, tex_type, pixels); 3.97 + glBegin(GL_QUADS); 3.98 + glTexCoord2d(0, 0); 3.99 + glVertex2d(0, 0); 3.100 + glTexCoord2d(ds->width, 0); 3.101 + glVertex2d(screen->w, 0); 3.102 + glTexCoord2d(ds->width, ds->height); 3.103 + glVertex2d(screen->w, screen->h); 3.104 + glTexCoord2d(0, ds->height); 3.105 + glVertex2d(0, screen->h); 3.106 + glEnd(); 3.107 + glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0); 3.108 + SDL_GL_SwapBuffers(); 3.109 +} 3.110 +#endif 3.111 3.112 static void sdl_update(DisplayState *ds, int x, int y, int w, int h) 3.113 { 3.114 @@ -96,17 +193,26 @@ static void sdl_resize(DisplayState *ds, 3.115 3.116 // printf("resizing to %d %d\n", w, h); 3.117 3.118 - flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_DOUBLEBUF|SDL_HWPALETTE; 3.119 - if (gui_fullscreen) 3.120 +#ifdef CONFIG_OPENGL 3.121 + if (ds->shared_buf && opengl_enabled) 3.122 + flags = SDL_OPENGL|SDL_RESIZABLE; 3.123 + else 3.124 +#endif 3.125 + flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_DOUBLEBUF|SDL_HWPALETTE; 3.126 + 3.127 + if (gui_fullscreen) { 3.128 flags |= SDL_FULLSCREEN; 3.129 - 3.130 + flags &= ~SDL_RESIZABLE; 3.131 + } 3.132 + 3.133 width = w; 3.134 height = h; 3.135 3.136 again: 3.137 screen = SDL_SetVideoMode(w, h, 0, flags); 3.138 +#ifndef CONFIG_OPENGL 3.139 if (!screen) { 3.140 - fprintf(stderr, "Could not open SDL display\n"); 3.141 + fprintf(stderr, "Could not open SDL display: %s\n", SDL_GetError()); 3.142 exit(1); 3.143 } 3.144 if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) { 3.145 @@ -115,9 +221,10 @@ static void sdl_resize(DisplayState *ds, 3.146 } 3.147 3.148 if (!screen->pixels) { 3.149 - fprintf(stderr, "Could not open SDL display\n"); 3.150 + fprintf(stderr, "Could not open SDL display: %s\n", SDL_GetError()); 3.151 exit(1); 3.152 } 3.153 +#endif 3.154 ds->width = w; 3.155 ds->height = h; 3.156 if (!ds->shared_buf) { 3.157 @@ -131,6 +238,25 @@ static void sdl_resize(DisplayState *ds, 3.158 ds->linesize = screen->pitch; 3.159 } else { 3.160 ds->linesize = linesize; 3.161 +#ifdef CONFIG_OPENGL 3.162 + switch(screen->format->BitsPerPixel) { 3.163 + case 8: 3.164 + gl_format = GL_RGB; 3.165 + break; 3.166 + case 16: 3.167 + gl_format = GL_RGB; 3.168 + break; 3.169 + case 24: 3.170 + gl_format = GL_RGB; 3.171 + break; 3.172 + case 32: 3.173 + if (!screen->format->Rshift) 3.174 + gl_format = GL_BGRA; 3.175 + else 3.176 + gl_format = GL_RGBA; 3.177 + break; 3.178 + }; 3.179 +#endif 3.180 } 3.181 } 3.182 3.183 @@ -139,7 +265,13 @@ static void sdl_colourdepth(DisplayState 3.184 if (!depth || !ds->depth) return; 3.185 ds->shared_buf = 1; 3.186 ds->depth = depth; 3.187 - ds->linesize = width * depth / 8; 3.188 + ds->linesize = width * depth / 8; 3.189 +#ifdef CONFIG_OPENGL 3.190 + if (opengl_enabled) { 3.191 + ds->dpy_update = opengl_update; 3.192 + ds->dpy_setdata = opengl_setdata; 3.193 + } 3.194 +#endif 3.195 } 3.196 3.197 /* generic keyboard conversion */ 3.198 @@ -331,8 +463,8 @@ static void sdl_send_mouse_event(int dx, 3.199 } 3.200 3.201 SDL_GetMouseState(&dx, &dy); 3.202 - dx = dx * 0x7FFF / (width - 1); 3.203 - dy = dy * 0x7FFF / (height - 1); 3.204 + dx = dx * 0x7FFF / (screen->w - 1); 3.205 + dy = dy * 0x7FFF / (screen->h - 1); 3.206 } else if (absolute_enabled) { 3.207 sdl_show_cursor(); 3.208 absolute_enabled = 0; 3.209 @@ -371,7 +503,7 @@ static void sdl_refresh(DisplayState *ds 3.210 while (SDL_PollEvent(ev)) { 3.211 switch (ev->type) { 3.212 case SDL_VIDEOEXPOSE: 3.213 - sdl_update(ds, 0, 0, screen->w, screen->h); 3.214 + sdl_update(ds, 0, 0, ds->width, ds->height); 3.215 break; 3.216 case SDL_KEYDOWN: 3.217 case SDL_KEYUP: 3.218 @@ -528,6 +660,16 @@ static void sdl_refresh(DisplayState *ds 3.219 } 3.220 } 3.221 break; 3.222 +#ifdef CONFIG_OPENGL 3.223 + case SDL_VIDEORESIZE: 3.224 + { 3.225 + SDL_ResizeEvent *rev = &ev->resize; 3.226 + screen = SDL_SetVideoMode(rev->w, rev->h, 0, SDL_OPENGL|SDL_RESIZABLE); 3.227 + opengl_setdata(ds, ds->data); 3.228 + opengl_update(ds, 0, 0, ds->width, ds->height); 3.229 + break; 3.230 + } 3.231 +#endif 3.232 default: 3.233 break; 3.234 } 3.235 @@ -536,13 +678,17 @@ static void sdl_refresh(DisplayState *ds 3.236 3.237 static void sdl_cleanup(void) 3.238 { 3.239 +#ifdef CONFIG_OPENGL 3.240 + if (texture_ref) glDeleteTextures(1, &texture_ref); 3.241 +#endif 3.242 SDL_Quit(); 3.243 } 3.244 3.245 -void sdl_display_init(DisplayState *ds, int full_screen) 3.246 +void sdl_display_init(DisplayState *ds, int full_screen, int opengl) 3.247 { 3.248 int flags; 3.249 uint8_t data = 0; 3.250 + opengl_enabled = opengl; 3.251 3.252 #if defined(__APPLE__) 3.253 /* always use generic keymaps */
4.1 --- a/tools/ioemu/vl.c Tue Mar 18 11:40:30 2008 +0000 4.2 +++ b/tools/ioemu/vl.c Tue Mar 18 11:47:58 2008 +0000 4.3 @@ -174,6 +174,11 @@ int graphic_height = 600; 4.4 #endif 4.5 int graphic_depth = 15; 4.6 int full_screen = 0; 4.7 +#ifdef CONFIG_OPENGL 4.8 +int opengl_enabled = 1; 4.9 +#else 4.10 +int opengl_enabled = 0; 4.11 +#endif 4.12 int no_quit = 0; 4.13 CharDriverState *serial_hds[MAX_SERIAL_PORTS]; 4.14 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS]; 4.15 @@ -6488,6 +6493,9 @@ void help(void) 4.16 #ifdef CONFIG_SDL 4.17 "-no-quit disable SDL window close capability\n" 4.18 #endif 4.19 +#ifdef CONFIG_OPENGL 4.20 + "-disable-opengl disable OpenGL rendering, using SDL" 4.21 +#endif 4.22 #ifdef TARGET_I386 4.23 "-no-fd-bootchk disable boot signature checking for floppy disks\n" 4.24 #endif 4.25 @@ -6666,6 +6674,7 @@ enum { 4.26 QEMU_OPTION_loadvm, 4.27 QEMU_OPTION_full_screen, 4.28 QEMU_OPTION_no_quit, 4.29 + QEMU_OPTION_disable_opengl, 4.30 QEMU_OPTION_pidfile, 4.31 QEMU_OPTION_no_kqemu, 4.32 QEMU_OPTION_kernel_kqemu, 4.33 @@ -6763,6 +6772,7 @@ const QEMUOption qemu_options[] = { 4.34 #ifdef CONFIG_SDL 4.35 { "no-quit", 0, QEMU_OPTION_no_quit }, 4.36 #endif 4.37 + { "disable-opengl", 0, QEMU_OPTION_disable_opengl }, 4.38 { "pidfile", HAS_ARG, QEMU_OPTION_pidfile }, 4.39 { "win2k-hack", 0, QEMU_OPTION_win2k_hack }, 4.40 { "usbdevice", HAS_ARG, QEMU_OPTION_usbdevice }, 4.41 @@ -7534,6 +7544,9 @@ int main(int argc, char **argv) 4.42 no_quit = 1; 4.43 break; 4.44 #endif 4.45 + case QEMU_OPTION_disable_opengl: 4.46 + opengl_enabled = 0; 4.47 + break; 4.48 case QEMU_OPTION_pidfile: 4.49 create_pidfile(optarg); 4.50 break; 4.51 @@ -7860,7 +7873,7 @@ int main(int argc, char **argv) 4.52 xenstore_write_vncport(vnc_display_port); 4.53 } else { 4.54 #if defined(CONFIG_SDL) 4.55 - sdl_display_init(ds, full_screen); 4.56 + sdl_display_init(ds, full_screen, opengl_enabled); 4.57 #elif defined(CONFIG_COCOA) 4.58 cocoa_display_init(ds, full_screen); 4.59 #else
5.1 --- a/tools/ioemu/vl.h Tue Mar 18 11:40:30 2008 +0000 5.2 +++ b/tools/ioemu/vl.h Tue Mar 18 11:47:58 2008 +0000 5.3 @@ -982,7 +982,7 @@ void isa_cirrus_vga_init(DisplayState *d 5.4 unsigned long vga_ram_offset, int vga_ram_size); 5.5 5.6 /* sdl.c */ 5.7 -void sdl_display_init(DisplayState *ds, int full_screen); 5.8 +void sdl_display_init(DisplayState *ds, int full_screen, int opengl_enable); 5.9 5.10 /* cocoa.m */ 5.11 void cocoa_display_init(DisplayState *ds, int full_screen);
6.1 --- a/tools/python/xen/xend/XendConfig.py Tue Mar 18 11:40:30 2008 +0000 6.2 +++ b/tools/python/xen/xend/XendConfig.py Tue Mar 18 11:47:58 2008 +0000 6.3 @@ -142,6 +142,7 @@ XENAPI_PLATFORM_CFG_TYPES = { 6.4 'rtc_timeoffset': int, 6.5 'serial': str, 6.6 'sdl': int, 6.7 + 'opengl': int, 6.8 'soundhw': str, 6.9 'stdvga': int, 6.10 'usb': int,
7.1 --- a/tools/python/xen/xend/image.py Tue Mar 18 11:40:30 2008 +0000 7.2 +++ b/tools/python/xen/xend/image.py Tue Mar 18 11:47:58 2008 +0000 7.3 @@ -263,7 +263,8 @@ class ImageHandler: 7.4 7.5 elif has_sdl: 7.6 # SDL is default in QEMU. 7.7 - pass 7.8 + if int(vmConfig['platform'].get('opengl', 1)) != 1 : 7.9 + ret.append('-disable-opengl') 7.10 else: 7.11 ret.append('-nographic') 7.12
8.1 --- a/tools/python/xen/xm/create.py Tue Mar 18 11:40:30 2008 +0000 8.2 +++ b/tools/python/xen/xm/create.py Tue Mar 18 11:47:58 2008 +0000 8.3 @@ -504,6 +504,10 @@ gopts.var('sdl', val='', 8.4 fn=set_value, default=None, 8.5 use="""Should the device model use SDL?""") 8.6 8.7 +gopts.var('opengl', val='', 8.8 + fn=set_value, default=None, 8.9 + use="""Enable\Disable OpenGL""") 8.10 + 8.11 gopts.var('display', val='DISPLAY', 8.12 fn=set_value, default=None, 8.13 use="X11 display to use") 8.14 @@ -745,7 +749,7 @@ def configure_hvm(config_image, vals): 8.15 'vnc', 'vncdisplay', 'vncunused', 'vncconsole', 'vnclisten', 8.16 'sdl', 'display', 'xauthority', 'rtc_timeoffset', 'monitor', 8.17 'acpi', 'apic', 'usb', 'usbdevice', 'keymap', 'pci', 'hpet', 8.18 - 'guest_os_type', 'hap'] 8.19 + 'guest_os_type', 'hap', 'opengl'] 8.20 8.21 for a in args: 8.22 if a in vals.__dict__ and vals.__dict__[a] is not None: