initHEADmaster

1 files changed, 538 insertions, 0 deletions

diff --git a/3rdparty/SDL/src/video/x11/SDL_x11yuv.c b/3rdparty/SDL/src/video/x11/SDL_x11yuv.c
new file mode 100644
index 0000000..62698df
--- /dev/null
+++ b/3rdparty/SDL/src/video/x11/SDL_x11yuv.c
@@ -0,0 +1,538 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2012 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 */ 
+		width = hwdata->image->pitches[0] / bpp;
+		XFree(hwdata->image);
+		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 */