--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/libsdl-trunk/src/video/x11/SDL_x11yuv.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,538 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2006 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+/* This is the XFree86 Xv extension implementation of YUV video overlays */
+
+#if SDL_VIDEO_DRIVER_X11_XV
+
+#include <X11/Xlib.h>
+#ifndef NO_SHARED_MEMORY
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <X11/extensions/XShm.h>
+#endif
+#include "../Xext/extensions/Xvlib.h"
+
+#include "SDL_x11yuv_c.h"
+#include "../SDL_yuvfuncs.h"
+
+#define XFREE86_REFRESH_HACK
+#ifdef XFREE86_REFRESH_HACK
+#include "SDL_x11image_c.h"
+#endif
+
+/* Workaround when pitch != width */
+#define PITCH_WORKAROUND
+
+/* Workaround intel i810 video overlay waiting with failing until the
+ first Xv[Shm]PutImage call <sigh> */
+#define INTEL_XV_BADALLOC_WORKAROUND
+
+/* Fix for the NVidia GeForce 2 - use the last available adaptor */
+/*#define USE_LAST_ADAPTOR*/ /* Apparently the NVidia drivers are fixed */
+
+/* The functions used to manipulate software video overlays */
+static struct private_yuvhwfuncs x11_yuvfuncs = {
+ X11_LockYUVOverlay,
+ X11_UnlockYUVOverlay,
+ X11_DisplayYUVOverlay,
+ X11_FreeYUVOverlay
+};
+
+struct private_yuvhwdata {
+ int port;
+#ifndef NO_SHARED_MEMORY
+ int yuv_use_mitshm;
+ XShmSegmentInfo yuvshm;
+#endif
+ SDL_NAME(XvImage) *image;
+};
+
+
+static int (*X_handler)(Display *, XErrorEvent *) = NULL;
+
+#ifndef NO_SHARED_MEMORY
+/* Shared memory error handler routine */
+static int shm_error;
+static int shm_errhandler(Display *d, XErrorEvent *e)
+{
+ if ( e->error_code == BadAccess ) {
+ shm_error = True;
+ return(0);
+ } else
+ return(X_handler(d,e));
+}
+#endif /* !NO_SHARED_MEMORY */
+
+static int xv_error;
+static int xv_errhandler(Display *d, XErrorEvent *e)
+{
+ if ( e->error_code == BadMatch ) {
+ xv_error = True;
+ return(0);
+ } else
+ return(X_handler(d,e));
+}
+
+#ifdef INTEL_XV_BADALLOC_WORKAROUND
+static int intel_errhandler(Display *d, XErrorEvent *e)
+{
+ if ( e->error_code == BadAlloc ) {
+ xv_error = True;
+ return(0);
+ } else
+ return(X_handler(d,e));
+}
+
+static void X11_ClearYUVOverlay(SDL_Overlay *overlay)
+{
+ int x,y;
+
+ switch (overlay->format)
+ {
+ case SDL_YV12_OVERLAY:
+ case SDL_IYUV_OVERLAY:
+ for (y = 0; y < overlay->h; y++)
+ memset(overlay->pixels[0] + y * overlay->pitches[0],
+ 0, overlay->w);
+
+ for (y = 0; y < (overlay->h / 2); y++)
+ {
+ memset(overlay->pixels[1] + y * overlay->pitches[1],
+ -128, overlay->w / 2);
+ memset(overlay->pixels[2] + y * overlay->pitches[2],
+ -128, overlay->w / 2);
+ }
+ break;
+ case SDL_YUY2_OVERLAY:
+ case SDL_YVYU_OVERLAY:
+ for (y = 0; y < overlay->h; y++)
+ {
+ for (x = 0; x < overlay->w; x += 2)
+ {
+ Uint8 *pixel_pair = overlay->pixels[0] +
+ y * overlay->pitches[0] + x * 2;
+ pixel_pair[0] = 0;
+ pixel_pair[1] = -128;
+ pixel_pair[2] = 0;
+ pixel_pair[3] = -128;
+ }
+ }
+ break;
+ case SDL_UYVY_OVERLAY:
+ for (y = 0; y < overlay->h; y++)
+ {
+ for (x = 0; x < overlay->w; x += 2)
+ {
+ Uint8 *pixel_pair = overlay->pixels[0] +
+ y * overlay->pitches[0] + x * 2;
+ pixel_pair[0] = -128;
+ pixel_pair[1] = 0;
+ pixel_pair[2] = -128;
+ pixel_pair[3] = 0;
+ }
+ }
+ break;
+ }
+}
+#endif
+
+SDL_Overlay *X11_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
+{
+ SDL_Overlay *overlay;
+ struct private_yuvhwdata *hwdata;
+ int xv_port;
+ unsigned int i, j, k;
+ unsigned int adaptors;
+ SDL_NAME(XvAdaptorInfo) *ainfo;
+ int bpp;
+#ifndef NO_SHARED_MEMORY
+ XShmSegmentInfo *yuvshm;
+#endif
+#ifdef INTEL_XV_BADALLOC_WORKAROUND
+ int intel_adapter = False;
+#endif
+
+ /* Look for the XVideo extension with a valid port for this format */
+ xv_port = -1;
+ if ( (Success == SDL_NAME(XvQueryExtension)(GFX_Display, &j, &j, &j, &j, &j)) &&
+ (Success == SDL_NAME(XvQueryAdaptors)(GFX_Display,
+ RootWindow(GFX_Display, SDL_Screen),
+ &adaptors, &ainfo)) ) {
+#ifdef USE_LAST_ADAPTOR
+ for ( i=0; i < adaptors; ++i )
+#else
+ for ( i=0; (i < adaptors) && (xv_port == -1); ++i )
+#endif /* USE_LAST_ADAPTOR */
+ {
+ /* Check to see if the visual can be used */
+ if ( BUGGY_XFREE86(<=, 4001) ) {
+ int visual_ok = 0;
+ for ( j=0; j<ainfo[i].num_formats; ++j ) {
+ if ( ainfo[i].formats[j].visual_id ==
+ SDL_Visual->visualid ) {
+ visual_ok = 1;
+ break;
+ }
+ }
+ if ( ! visual_ok ) {
+ continue;
+ }
+ }
+#ifdef INTEL_XV_BADALLOC_WORKAROUND
+ if ( !strcmp(ainfo[i].name, "Intel(R) Video Overla"))
+ intel_adapter = True;
+ else
+ intel_adapter = False;
+#endif
+ if ( (ainfo[i].type & XvInputMask) &&
+ (ainfo[i].type & XvImageMask) ) {
+ int num_formats;
+ SDL_NAME(XvImageFormatValues) *formats;
+ formats = SDL_NAME(XvListImageFormats)(GFX_Display,
+ ainfo[i].base_id, &num_formats);
+#ifdef USE_LAST_ADAPTOR
+ for ( j=0; j < num_formats; ++j )
+#else
+ for ( j=0; (j < num_formats) && (xv_port == -1); ++j )
+#endif /* USE_LAST_ADAPTOR */
+ {
+ if ( (Uint32)formats[j].id == format ) {
+ for ( k=0; k < ainfo[i].num_ports; ++k ) {
+ if ( Success == SDL_NAME(XvGrabPort)(GFX_Display, ainfo[i].base_id+k, CurrentTime) ) {
+ xv_port = ainfo[i].base_id+k;
+ break;
+ }
+ }
+ }
+ }
+ if ( formats ) {
+ XFree(formats);
+ }
+ }
+ }
+ SDL_NAME(XvFreeAdaptorInfo)(ainfo);
+ }
+
+ /* Precalculate the bpp for the pitch workaround below */
+ switch (format) {
+ /* Add any other cases we need to support... */
+ case SDL_YUY2_OVERLAY:
+ case SDL_UYVY_OVERLAY:
+ case SDL_YVYU_OVERLAY:
+ bpp = 2;
+ break;
+ default:
+ bpp = 1;
+ break;
+ }
+
+#if 0
+ /*
+ * !!! FIXME:
+ * "Here are some diffs for X11 and yuv. Note that the last part 2nd
+ * diff should probably be a new call to XvQueryAdaptorFree with ainfo
+ * and the number of adaptors, instead of the loop through like I did."
+ *
+ * ACHTUNG: This is broken! It looks like XvFreeAdaptorInfo does this
+ * for you, so we end up with a double-free. I need to look at this
+ * more closely... --ryan.
+ */
+ for ( i=0; i < adaptors; ++i ) {
+ if (ainfo[i].name != NULL) Xfree(ainfo[i].name);
+ if (ainfo[i].formats != NULL) Xfree(ainfo[i].formats);
+ }
+ Xfree(ainfo);
+#endif
+
+ if ( xv_port == -1 ) {
+ SDL_SetError("No available video ports for requested format");
+ return(NULL);
+ }
+
+ /* Enable auto-painting of the overlay colorkey */
+ {
+ static const char *attr[] = { "XV_AUTOPAINT_COLORKEY", "XV_AUTOPAINT_COLOURKEY" };
+ unsigned int i;
+
+ SDL_NAME(XvSelectPortNotify)(GFX_Display, xv_port, True);
+ X_handler = XSetErrorHandler(xv_errhandler);
+ for ( i=0; i < sizeof(attr)/(sizeof attr[0]); ++i ) {
+ Atom a;
+
+ xv_error = False;
+ a = XInternAtom(GFX_Display, attr[i], True);
+ if ( a != None ) {
+ SDL_NAME(XvSetPortAttribute)(GFX_Display, xv_port, a, 1);
+ XSync(GFX_Display, True);
+ if ( ! xv_error ) {
+ break;
+ }
+ }
+ }
+ XSetErrorHandler(X_handler);
+ SDL_NAME(XvSelectPortNotify)(GFX_Display, xv_port, False);
+ }
+
+ /* Create the overlay structure */
+ overlay = (SDL_Overlay *)SDL_malloc(sizeof *overlay);
+ if ( overlay == NULL ) {
+ SDL_NAME(XvUngrabPort)(GFX_Display, xv_port, CurrentTime);
+ SDL_OutOfMemory();
+ return(NULL);
+ }
+ SDL_memset(overlay, 0, (sizeof *overlay));
+
+ /* Fill in the basic members */
+ overlay->format = format;
+ overlay->w = width;
+ overlay->h = height;
+
+ /* Set up the YUV surface function structure */
+ overlay->hwfuncs = &x11_yuvfuncs;
+ overlay->hw_overlay = 1;
+
+ /* Create the pixel data and lookup tables */
+ hwdata = (struct private_yuvhwdata *)SDL_malloc(sizeof *hwdata);
+ overlay->hwdata = hwdata;
+ if ( hwdata == NULL ) {
+ SDL_NAME(XvUngrabPort)(GFX_Display, xv_port, CurrentTime);
+ SDL_OutOfMemory();
+ SDL_FreeYUVOverlay(overlay);
+ return(NULL);
+ }
+ hwdata->port = xv_port;
+#ifndef NO_SHARED_MEMORY
+ yuvshm = &hwdata->yuvshm;
+ SDL_memset(yuvshm, 0, sizeof(*yuvshm));
+ hwdata->image = SDL_NAME(XvShmCreateImage)(GFX_Display, xv_port, format,
+ 0, width, height, yuvshm);
+#ifdef PITCH_WORKAROUND
+ if ( hwdata->image != NULL && hwdata->image->pitches[0] != (width*bpp) ) {
+ /* Ajust overlay width according to pitch */
+ XFree(hwdata->image);
+ width = hwdata->image->pitches[0] / bpp;
+ hwdata->image = SDL_NAME(XvShmCreateImage)(GFX_Display, xv_port, format,
+ 0, width, height, yuvshm);
+ }
+#endif /* PITCH_WORKAROUND */
+ hwdata->yuv_use_mitshm = (hwdata->image != NULL);
+ if ( hwdata->yuv_use_mitshm ) {
+ yuvshm->shmid = shmget(IPC_PRIVATE, hwdata->image->data_size,
+ IPC_CREAT | 0777);
+ if ( yuvshm->shmid >= 0 ) {
+ yuvshm->shmaddr = (char *)shmat(yuvshm->shmid, 0, 0);
+ yuvshm->readOnly = False;
+ if ( yuvshm->shmaddr != (char *)-1 ) {
+ shm_error = False;
+ X_handler = XSetErrorHandler(shm_errhandler);
+ XShmAttach(GFX_Display, yuvshm);
+ XSync(GFX_Display, True);
+ XSetErrorHandler(X_handler);
+ if ( shm_error )
+ shmdt(yuvshm->shmaddr);
+ } else {
+ shm_error = True;
+ }
+ shmctl(yuvshm->shmid, IPC_RMID, NULL);
+ } else {
+ shm_error = True;
+ }
+ if ( shm_error ) {
+ XFree(hwdata->image);
+ hwdata->yuv_use_mitshm = 0;
+ } else {
+ hwdata->image->data = yuvshm->shmaddr;
+ }
+ }
+ if ( !hwdata->yuv_use_mitshm )
+#endif /* NO_SHARED_MEMORY */
+ {
+ hwdata->image = SDL_NAME(XvCreateImage)(GFX_Display, xv_port, format,
+ 0, width, height);
+
+#ifdef PITCH_WORKAROUND
+ if ( hwdata->image != NULL && hwdata->image->pitches[0] != (width*bpp) ) {
+ /* Ajust overlay width according to pitch */
+ XFree(hwdata->image);
+ width = hwdata->image->pitches[0] / bpp;
+ hwdata->image = SDL_NAME(XvCreateImage)(GFX_Display, xv_port, format,
+ 0, width, height);
+ }
+#endif /* PITCH_WORKAROUND */
+ if ( hwdata->image == NULL ) {
+ SDL_SetError("Couldn't create XVideo image");
+ SDL_FreeYUVOverlay(overlay);
+ return(NULL);
+ }
+ hwdata->image->data = SDL_malloc(hwdata->image->data_size);
+ if ( hwdata->image->data == NULL ) {
+ SDL_OutOfMemory();
+ SDL_FreeYUVOverlay(overlay);
+ return(NULL);
+ }
+ }
+
+ /* Find the pitch and offset values for the overlay */
+ overlay->planes = hwdata->image->num_planes;
+ overlay->pitches = (Uint16 *)SDL_malloc(overlay->planes * sizeof(Uint16));
+ overlay->pixels = (Uint8 **)SDL_malloc(overlay->planes * sizeof(Uint8 *));
+ if ( !overlay->pitches || !overlay->pixels ) {
+ SDL_OutOfMemory();
+ SDL_FreeYUVOverlay(overlay);
+ return(NULL);
+ }
+ for ( i=0; i<overlay->planes; ++i ) {
+ overlay->pitches[i] = hwdata->image->pitches[i];
+ overlay->pixels[i] = (Uint8 *)hwdata->image->data +
+ hwdata->image->offsets[i];
+ }
+
+#ifdef XFREE86_REFRESH_HACK
+ /* Work around an XFree86 X server bug (?)
+ We can't perform normal updates in windows that have video
+ being output to them. See SDL_x11image.c for more details.
+ */
+ X11_DisableAutoRefresh(this);
+#endif
+
+#ifdef INTEL_XV_BADALLOC_WORKAROUND
+ /* HACK, GRRR sometimes (i810) creating the overlay succeeds, but the
+ first call to XvShm[Put]Image to a mapped window fails with:
+ "BadAlloc (insufficient resources for operation)". This happens with
+ certain formats when the XvImage is too large to the i810's liking.
+
+ We work around this by doing a test XvShm[Put]Image with a black
+ Xv image, this may cause some flashing, so only do this check if we
+ are running on an intel Xv-adapter. */
+ if (intel_adapter)
+ {
+ xv_error = False;
+ X_handler = XSetErrorHandler(intel_errhandler);
+
+ X11_ClearYUVOverlay(overlay);
+
+ /* We set the destination height and width to 1 pixel to avoid
+ putting a large black rectangle over the screen, thus
+ strongly reducing possible flashing. */
+#ifndef NO_SHARED_MEMORY
+ if ( hwdata->yuv_use_mitshm ) {
+ SDL_NAME(XvShmPutImage)(GFX_Display, hwdata->port,
+ SDL_Window, SDL_GC,
+ hwdata->image,
+ 0, 0, overlay->w, overlay->h,
+ 0, 0, 1, 1, False);
+ }
+ else
+#endif
+ {
+ SDL_NAME(XvPutImage)(GFX_Display, hwdata->port,
+ SDL_Window, SDL_GC,
+ hwdata->image,
+ 0, 0, overlay->w, overlay->h,
+ 0, 0, 1, 1);
+ }
+ XSync(GFX_Display, False);
+ XSetErrorHandler(X_handler);
+
+ if (xv_error)
+ {
+ X11_FreeYUVOverlay(this, overlay);
+ return NULL;
+ }
+ /* Repair the (1 pixel worth of) damage we've just done */
+ X11_RefreshDisplay(this);
+ }
+#endif
+
+ /* We're all done.. */
+ return(overlay);
+}
+
+int X11_LockYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+ return(0);
+}
+
+void X11_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+ return;
+}
+
+int X11_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst)
+{
+ struct private_yuvhwdata *hwdata;
+
+ hwdata = overlay->hwdata;
+
+#ifndef NO_SHARED_MEMORY
+ if ( hwdata->yuv_use_mitshm ) {
+ SDL_NAME(XvShmPutImage)(GFX_Display, hwdata->port, SDL_Window, SDL_GC,
+ hwdata->image,
+ src->x, src->y, src->w, src->h,
+ dst->x, dst->y, dst->w, dst->h, False);
+ }
+ else
+#endif
+ {
+ SDL_NAME(XvPutImage)(GFX_Display, hwdata->port, SDL_Window, SDL_GC,
+ hwdata->image,
+ src->x, src->y, src->w, src->h,
+ dst->x, dst->y, dst->w, dst->h);
+ }
+ XSync(GFX_Display, False);
+ return(0);
+}
+
+void X11_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+ struct private_yuvhwdata *hwdata;
+
+ hwdata = overlay->hwdata;
+ if ( hwdata ) {
+ SDL_NAME(XvUngrabPort)(GFX_Display, hwdata->port, CurrentTime);
+#ifndef NO_SHARED_MEMORY
+ if ( hwdata->yuv_use_mitshm ) {
+ XShmDetach(GFX_Display, &hwdata->yuvshm);
+ shmdt(hwdata->yuvshm.shmaddr);
+ }
+#endif
+ if ( hwdata->image ) {
+ XFree(hwdata->image);
+ }
+ SDL_free(hwdata);
+ }
+ if ( overlay->pitches ) {
+ SDL_free(overlay->pitches);
+ overlay->pitches = NULL;
+ }
+ if ( overlay->pixels ) {
+ SDL_free(overlay->pixels);
+ overlay->pixels = NULL;
+ }
+#ifdef XFREE86_REFRESH_HACK
+ X11_EnableAutoRefresh(this);
+#endif
+}
+
+#endif /* SDL_VIDEO_DRIVER_X11_XV */