Add QEMU DirectFB display driver

Message ID	1273766038-16808-1-git-send-email-julian.pidancet@citrix.com
State	New
Headers	show Return-Path: <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> From: Julian Pidancet <julian.pidancet@citrix.com> To: qemu-devel@nongnu.org Date: Thu, 13 May 2010 16:53:58 +0100 Message-Id: <1273766038-16808-1-git-send-email-julian.pidancet@citrix.com> Cc: Julian Pidancet <julian.pidancet@citrix.com> Subject: [Qemu-devel] [PATCH] Add QEMU DirectFB display driver Precedence: list Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org

diff --git a/Makefile b/Makefile index eb9e02b..6932c81 100644 --- a/Makefile +++ b/Makefile @@ -106,6 +106,10 @@ sdl.o: sdl.c keymaps.h sdl_keysym.h sdl_zoom.h sdl.o audio/sdlaudio.o sdl_zoom.o baum.o: QEMU_CFLAGS += $(SDL_CFLAGS) +directfb.o: directfb.c + +directfb.o: QEMU_CFLAGS += $(DIRECTFB_CFLAGS) + acl.o: acl.h acl.c vnc.h: vnc-tls.h vnc-auth-vencrypt.h vnc-auth-sasl.h keymaps.h diff --git a/Makefile.objs b/Makefile.objs index ecdd53e..0904b07 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -102,6 +102,7 @@ common-obj-y += $(addprefix audio/, $(audio-obj-y)) common-obj-y += keymaps.o common-obj-$(CONFIG_SDL) += sdl.o sdl_zoom.o x_keymap.o common-obj-$(CONFIG_CURSES) += curses.o +common-obj-$(CONFIG_DIRECTFB) += directfb.o common-obj-y += vnc.o acl.o d3des.o common-obj-y += vnc-encoding-zlib.o vnc-encoding-hextile.o common-obj-y += iov.o diff --git a/configure b/configure index 36d028f..eb73415 100755 --- a/configure +++ b/configure @@ -258,6 +258,7 @@ kvm="" kvm_para="" nptl="" sdl="" +directfb="no" sparse="no" uuid="" vde="" @@ -502,6 +503,10 @@ for opt do ;; --sysconfdir=*) sysconfdir="$optarg" ;; + --disable-directfb) directfb="no" + ;; + --enable-directfb) directfb="yes" + ;; --disable-sdl) sdl="no" ;; --enable-sdl) sdl="yes" @@ -763,6 +768,8 @@ echo " --disable-strip disable stripping binaries" echo " --disable-werror disable compilation abort on warning" echo " --disable-sdl disable SDL" echo " --enable-sdl enable SDL" +echo " --disable-directfb disable DirectFB" +echo " --enable-directfb enable DirectFB" echo " --enable-cocoa enable COCOA (Mac OS X only)" echo " --audio-drv-list=LIST set audio drivers list:" echo " Available drivers: $audio_possible_drivers" @@ -1062,6 +1069,15 @@ if test "$sparse" != "no" ; then fi ########################################## +# DirectFB probe + +if test "$directfb" = "yes" ; then + directfb_libs=`directfb-config --libs` + directfb_cflags=`directfb-config --cflags` + libs_softmmu="$directfb_libs $libs_softmmu" +fi + +########################################## # SDL probe if $pkgconfig sdl --modversion >/dev/null 2>&1; then @@ -1999,6 +2015,7 @@ if test "$darwin" = "yes" ; then echo "Cocoa support $cocoa" fi echo "SDL support $sdl" +echo "DirectFB support $directfb" echo "curses support $curses" echo "curl support $curl" echo "check support $check_utests" @@ -2169,6 +2186,10 @@ fi if test "$cocoa" = "yes" ; then echo "CONFIG_COCOA=y" >> $config_host_mak fi +if test "$directfb" = "yes" ; then + echo "CONFIG_DIRECTFB=y" >> $config_host_mak + echo "DIRECTFB_CFLAGS=$directfb_cflags" >> $config_host_mak +fi if test "$curses" = "yes" ; then echo "CONFIG_CURSES=y" >> $config_host_mak fi diff --git a/console.h b/console.h index 6def115..d1dd211 100644 --- a/console.h +++ b/console.h @@ -335,6 +335,9 @@ void qemu_console_resize(DisplayState *ds, int width, int height); void qemu_console_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h); +/* directfb.c */ +void directfb_display_init(DisplayState *ds); + /* sdl.c */ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame); diff --git a/directfb.c b/directfb.c new file mode 100644 index 0000000..6dea99a --- /dev/null +++ b/directfb.c @@ -0,0 +1,394 @@ +/* + * QEMU DirectFB display driver + * + * Copyright (c) 2010 Citrix Systems, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include <console.h> +#include <keymaps.h> + +#include <directfb.h> + +static IDirectFB *dfb = NULL; +static IDirectFBSurface *primary = NULL; +static IDirectFBEventBuffer *events = NULL; +static IDirectFBSurface *guest = NULL; + +static void *screen_data = NULL; +static int screen_pitch = 0; +static int screen_bpp = 0; +static int screen_width = 0; +static int screen_height = 0; +static int scaling = 0; + +#define DIRECTFB_IS_VIDEO_PTR(p) \ + (p >= (uint8_t *) screen_data && \ + p < (uint8_t *) screen_data + screen_height * screen_pitch) + +static DFBSurfacePixelFormat directfb_bpp_to_pixelformat(int bpp) +{ + switch (bpp) { + case 16: + return DSPF_RGB16; + case 24: + return DSPF_RGB24; + case 32: + return DSPF_RGB32; + default: + return DSPF_UNKNOWN; + } +} + +static void directfb_clearscreen(void) +{ + if (screen_data != NULL) { + /* Surface is locked */ + memset(screen_data, 0x0, + screen_pitch * screen_height); + } else { + primary->SetColor(primary, 0x0, 0x0, 0x0, 0x0); + primary->FillRectangle(primary, 0, 0, screen_width, screen_height); + } +} + +static void directfb_update(struct DisplayState *s, int x, int y, int w, int h) +{ + DFBRegion region = {x, y, x + w, y + h}; + + if (guest) { + if (scaling) { + primary->StretchBlit(primary, guest, NULL, NULL); + } else { + int xoff = (screen_width - ds_get_width(s)) / 2; + int yoff = (screen_height - ds_get_height(s)) / 2; + + primary->Blit(primary, guest, NULL, xoff, yoff); + + region.x1 += xoff; + region.y1 += yoff; + region.x2 += xoff; + region.x2 += yoff; + } + } + + primary->Flip(primary, &region, DSFLIP_NONE); +} + +static void directfb_setdata(DisplayState *s) +{ + DFBSurfaceDescription dsc; + + if (guest) { + guest->Release(guest); + guest = NULL; + } + + dsc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | + DSDESC_PIXELFORMAT | DSDESC_PREALLOCATED; + dsc.width = ds_get_width(s); + dsc.height = ds_get_height(s); + dsc.pixelformat = directfb_bpp_to_pixelformat(ds_get_bits_per_pixel(s)); + dsc.preallocated[0].data = ds_get_data(s); + dsc.preallocated[0].pitch = ds_get_linesize(s); + + dfb->CreateSurface(dfb, &dsc, &guest); +} + +static void directfb_resize(struct DisplayState *s) +{ + directfb_clearscreen(); + + if (scaling || ds_get_bits_per_pixel(s) != screen_bpp || + ds_get_linesize(s) != screen_pitch || + !DIRECTFB_IS_VIDEO_PTR(ds_get_data(s))) { + + directfb_setdata(s); + } else { + if (guest) { + guest->Release(guest); + guest = NULL; + } + } +} + +static int directfb_buttons_state(DFBInputEvent *ev) +{ + int buttons = 0; + + if (ev->buttons & DIBM_LEFT) { + buttons |= MOUSE_EVENT_LBUTTON; + } + if (ev->buttons & DIBM_RIGHT) { + buttons |= MOUSE_EVENT_RBUTTON; + } + if (ev->buttons & DIBM_MIDDLE) { + buttons |= MOUSE_EVENT_MBUTTON; + } + + return buttons; +} + +static void directfb_put_keycode(char keycode, int up) +{ + int scancode = keycode; + + /* Pause/Break */ + if (keycode == 119) { + scancode = 0x45; + kbd_put_keycode(0xe1); + kbd_put_keycode(0x1d | up ? 0x80 : 0x0); + } else { + /* grey key */ + if (keycode >= 0x60 && keycode < 0x70) { + const char esc[16] = {0x1c, 0x1d, 0x35, 0x37, + 0x38, 0x46, 0x47, 0x48, + 0x49, 0x4b, 0x4d, 0x4f, + 0x50, 0x51, 0x52, 0x53}; + scancode = esc[keycode - 0x60]; + kbd_put_keycode(0xe0); + + /* PrintScreen */ + if (keycode == 99) { + scancode = 0x37; + kbd_put_keycode(0x2a | up ? 0x80 : 0x0); + kbd_put_keycode(0xe0); + } + } + } + + kbd_put_keycode(scancode | (up ? 0x80 : 0x0)); +} + +static void directfb_toggle_fullscreen(struct DisplayState *ds) +{ + scaling = !scaling; + + vga_hw_invalidate(); + vga_hw_update(); +} + +static void directfb_refresh(struct DisplayState *s) +{ + DFBInputEvent ev; + + vga_hw_update(); + + while (events->GetEvent(events, DFB_EVENT(&ev)) == DFB_OK) { + switch (ev.type) { + case DIET_KEYRELEASE: + directfb_put_keycode(ev.key_code, 1); + break; + case DIET_KEYPRESS: + /* Toggle centered/fullscreen */ + if ((ev.modifiers & DIMM_CONTROL) && + (ev.modifiers & DIMM_ALT) && + (ev.key_id == DIKI_ENTER)) { + directfb_toggle_fullscreen(s); + break; + } + directfb_put_keycode(ev.key_code, 0); + break; + case DIET_BUTTONPRESS: + case DIET_BUTTONRELEASE: + case DIET_AXISMOTION: + { + int buttons = directfb_buttons_state(&ev); + int dx = 0; + int dy = 0; + int dz = 0; + + if (ev.type == DIET_AXISMOTION) { + if (ev.axis == DIAI_X) { + dx = ev.axisrel; + } + if (ev.axis == DIAI_Y) { + dy = ev.axisrel; + } + if (ev.axis == DIAI_Z) { + dz = ev.axisrel; + } + } + + kbd_mouse_event(dx, dy, dz, buttons); + break; + } + case DIET_UNKNOWN: + default: + break; + + } + } +} + +static DisplaySurface* directfb_create_displaysurface(int width, int height) +{ + DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface)); + DFBSurfacePixelFormat spf; + surface->width = width; + surface->height = height; + + primary->GetPixelFormat(primary, &spf); + + if (scaling) { + int bytes_per_pixel = DFB_BYTES_PER_PIXEL(spf); + + if (bytes_per_pixel != 2 && bytes_per_pixel != 4) { + bytes_per_pixel = 4; + } + + surface->pf = qemu_default_pixelformat(8 * bytes_per_pixel); + surface->linesize = width * bytes_per_pixel; + + surface->flags = QEMU_ALLOCATED_FLAG; + surface->data = qemu_mallocz(surface->linesize * surface->height); + } else { + primary->Lock(primary, DSLF_READ | DSLF_WRITE, &screen_data, &screen_pitch); + surface->pf = qemu_default_pixelformat(screen_bpp); + surface->flags = QEMU_REALPIXELS_FLAG; + surface->linesize = screen_pitch; + surface->data = screen_data + + ((screen_height - height) / 2) * screen_pitch + + ((screen_width - width) / 2) * (screen_bpp / 8); + } + + return surface; +} + +static void directfb_free_displaysurface(DisplaySurface *surface) +{ + if (surface == NULL) + return; + + if (surface->flags & QEMU_ALLOCATED_FLAG) { + qemu_free(surface->data); + } else if (surface->flags & QEMU_REALPIXELS_FLAG) { + primary->Unlock(primary); + screen_data = NULL; + screen_pitch = 0; + } + + surface->data = NULL; + + qemu_free(surface); +} + +static DisplaySurface* directfb_resize_displaysurface(DisplaySurface *surface, + int width, + int height) +{ + directfb_free_displaysurface(surface); + return directfb_create_displaysurface(width, height); +} + +static DFBEnumerationResult directfb_attach_inputdevice(DFBInputDeviceID device_id, + DFBInputDeviceDescription desc, + void *data) +{ + if (!strcmp(desc.vendor, "Linux")) { + return DFENUM_OK; + } + + if (desc.type == DIDID_KEYBOARD || desc.type | DIDTF_MOUSE) { + IDirectFBInputDevice *device; + + dfb->GetInputDevice(dfb, device_id, &device); + + if (events == NULL) { + device->CreateEventBuffer(device, &events); + } else { + device->AttachEventBuffer(device, events); + } + } + + return DFENUM_OK; +} + +void directfb_display_init(DisplayState *ds) +{ + DisplayChangeListener *dcl; + DisplayAllocator *da; + DFBResult status; + DFBSurfaceDescription dsc; + DFBSurfaceCapabilities caps; + DFBSurfacePixelFormat spf; + + /* + * Prevent DirectFB to read qemu command line argument in procfs and + * parse it. + */ + char prog_name[] = "qemu"; + char *prog_argv[] = {prog_name}; + char **dfb_argv = prog_argv; + int dfb_argc = 1; + + status = DirectFBInit(&dfb_argc, &dfb_argv); + if (status != DFB_OK) { + fprintf(stderr, "Could not initialize DirectFB(%d) - exiting\n", status); + exit(1); + } + + DirectFBCreate(&dfb); + dfb->SetCooperativeLevel(dfb, DFSCL_FULLSCREEN); + dsc.flags = DSDESC_CAPS; + dsc.caps = DSCAPS_PRIMARY | DSCAPS_VIDEOONLY | DSCAPS_SHARED; + status = dfb->CreateSurface(dfb, &dsc, &primary); + + if (status != DFB_OK) { + fprintf(stderr, "Could not create DirectFB surface(%d) - exiting\n", status); + exit(1); + } + + /* Double check surface capabilities */ + primary->GetCapabilities(primary, &caps); + if ((caps & dsc.caps) != dsc.caps || + caps & DSCAPS_FLIPPING || caps & DSCAPS_INTERLACED || + caps & DSCAPS_SYSTEMONLY) { + fprintf(stderr, "Wrong DirectFB surface capabilities - exiting\n"); + exit(1); + } + + primary->GetSize(primary, &screen_width, &screen_height); + primary->GetPixelFormat(primary, &spf); + screen_bpp = DFB_BITS_PER_PIXEL(spf); + + dfb->EnumInputDevices(dfb, directfb_attach_inputdevice, NULL); + + fprintf(stderr, "Initialized QEMU DirectFB driver. (%dx%d)\n", + screen_width, screen_height); + + dcl = qemu_mallocz(sizeof(DisplayChangeListener)); + dcl->dpy_update = directfb_update; + dcl->dpy_resize = directfb_resize; + dcl->dpy_refresh = directfb_refresh; + dcl->dpy_setdata = directfb_setdata; + register_displaychangelistener(ds, dcl); + + da = qemu_mallocz(sizeof(DisplayAllocator)); + da->create_displaysurface = directfb_create_displaysurface; + da->resize_displaysurface = directfb_resize_displaysurface; + da->free_displaysurface = directfb_free_displaysurface; + + directfb_clearscreen(); + + if (register_displayallocator(ds, da) == da) { + dpy_resize(ds); + } +} diff --git a/qemu-options.hx b/qemu-options.hx index 12f6b51..a4bdfbe 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -608,6 +608,16 @@ QEMU can display the VGA output when in text mode using a curses/ncurses interface. Nothing is displayed in graphical mode. ETEXI +#ifdef CONFIG_DIRECTFB +DEF("directfb", 0, QEMU_OPTION_directfb, + "-directfb enable DirectFB\n") +#endif +STEXI +@item -directfb +@findex -directfb +Enable DirectFB. +ETEXI + #ifdef CONFIG_SDL DEF("no-frame", 0, QEMU_OPTION_no_frame, "-no-frame open SDL window without a frame and window decorations\n", diff --git a/sysemu.h b/sysemu.h index fa921df..a2cd5b0 100644 --- a/sysemu.h +++ b/sysemu.h @@ -98,6 +98,7 @@ typedef enum DisplayType DT_CURSES, DT_SDL, DT_VNC, + DT_DIRECTFB, DT_NOGRAPHIC, } DisplayType; diff --git a/vl.c b/vl.c index 85bcc84..e6235fa 100644 --- a/vl.c +++ b/vl.c @@ -3199,6 +3199,11 @@ int main(int argc, char **argv, char **envp) case QEMU_OPTION_full_screen: full_screen = 1; break; +#ifdef CONFIG_DIRECTFB + case QEMU_OPTION_directfb: + display_type = DT_DIRECTFB; + break; +#endif #ifdef CONFIG_SDL case QEMU_OPTION_no_frame: no_frame = 1; @@ -3765,6 +3770,8 @@ int main(int argc, char **argv, char **envp) if (display_type == DT_DEFAULT) { #if defined(CONFIG_SDL) || defined(CONFIG_COCOA) display_type = DT_SDL; +#elif defined(CONFIG_DIRECTFB) + display_type = DT_DIRECTFB; #else display_type = DT_VNC; vnc_display = "localhost:0,to=99"; @@ -3781,6 +3788,11 @@ int main(int argc, char **argv, char **envp) curses_display_init(ds, full_screen); break; #endif +#if defined(CONFIG_DIRECTFB) + case DT_DIRECTFB: + directfb_display_init(ds); + break; +#endif #if defined(CONFIG_SDL) case DT_SDL: sdl_display_init(ds, full_screen, no_frame);

Add QEMU DirectFB display driver

Commit Message

Comments

Patch