# HG changeset patch
# User Sam Lantinga <slouken@libsdl.org>
# Date 1021838041 0
# Node ID ba72f259bc8838ecc79a0469c4d31fd7c8b3c84d
# Parent  e405cf8bf58011e8330420fc20ad3cf504dd8616
Date: Sat, 18 May 2002 17:40:53 +0300
From: Mike Gorchak <mike@malva.ua>
Subject: New QNX patches

- Added more error check to avoid SEGFAULTS;
- Fixed bug in update function for SDL_HWSURFACE. BTW: update is much
faster than before.
- Added checks for SDL_HWSURFACE flag, chosen bpp must be equal to
desktop bpp for SDL_HWSURFACE.
- Fixed overlay bug, no more SEGFAULTS.

diff -r e405cf8bf580 -r ba72f259bc88 src/video/photon/SDL_ph_image.c
--- a/src/video/photon/SDL_ph_image.c	Sun May 19 19:52:32 2002 +0000
+++ b/src/video/photon/SDL_ph_image.c	Sun May 19 19:54:01 2002 +0000
@@ -65,9 +65,7 @@
         }
         break;
         default:{
-            /* should never get here */
-            fprintf(stderr,"error: unsupported bbp = %d\n",
-                    screen->format->BitsPerPixel);
+            fprintf(stderr,"ph_SetupImage(): unsupported bbp = %d\n", screen->format->BitsPerPixel);
             return -1;
         }
         break;
@@ -106,83 +104,82 @@
 
 int ph_SetupOCImage(_THIS, SDL_Surface *screen)
 {
-	int type = 0;
+    int type = 0;
 
-	/* Determine image type */
-	switch(screen->format->BitsPerPixel)
-	{
-		case 8:{
-			type = Pg_IMAGE_PALETTE_BYTE;
-		}
-		break;
-		case 15:{
-			type = Pg_IMAGE_DIRECT_555; 
-		}
-		break;
-		case 16:{
-			type = Pg_IMAGE_DIRECT_565; 
-		}
-		break;
-
-		case 24:{
-			type = Pg_IMAGE_DIRECT_888;
-		}
-		break;
-		
-		case 32:{
-			type = Pg_IMAGE_DIRECT_8888;
-		}
-		break;
-		default:{
-		/* should never get here */
-			fprintf(stderr,"error: unsupported bbp = %d\n",
-					screen->format->BitsPerPixel);
-			return -1;
+    /* Determine image type */
+    switch(screen->format->BitsPerPixel)
+    {
+        case 8: {
+                    type = Pg_IMAGE_PALETTE_BYTE;
+                }
+                break;
+        case 15:{
+                    type = Pg_IMAGE_DIRECT_555; 
 		}
 		break;
-	}
-
-	OCImage.FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
-	OCImage.FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
-
-	if(OCImage.direct_context == NULL)
-	   OCImage.direct_context = PdCreateDirectContext();
+        case 16:{
+                    type = Pg_IMAGE_DIRECT_565; 
+                }
+                break;
+        case 24:{
+                    type = Pg_IMAGE_DIRECT_888;
+                }
+                break;
+        case 32:{
+                    type = Pg_IMAGE_DIRECT_8888;
+                }
+                break;
+        default:{
+                    fprintf(stderr,"ph_SetupOCImage(): unsupported bpp = %d\n", screen->format->BitsPerPixel);
+                    return -1;
+                }
+                break;
+    }
 
-	OCImage.offscreen_context = PdCreateOffscreenContext(0,screen->w,screen->h, Pg_OSC_MEM_PAGE_ALIGN);
-				
-	if (OCImage.offscreen_context == NULL)
-	{
-	   printf("PdCreateOffscreenContext  failed\n");
-	   return -1;
-	}
+    OCImage.FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA)));
+    OCImage.FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA)));
 
-	OCImage.Stride = OCImage.offscreen_context->pitch;	
+    if(OCImage.direct_context == NULL)
+    {
+        OCImage.direct_context = PdCreateDirectContext();
+    }
 
-        if (OCImage.flags & SDL_DOUBLEBUF)
-      	   printf("hardware flag for doublebuf offscreen context\n");
+    OCImage.offscreen_context = PdCreateOffscreenContext(0, screen->w, screen->h, Pg_OSC_MEM_PAGE_ALIGN);
 
-			
-			OCImage.dc_ptr.ptr8 = (unsigned char *) PdGetOffscreenContextPtr(OCImage.offscreen_context);
-			
-			OCImage.CurrentFrameData = OCImage.FrameData0;
-			OCImage.CurrentFrameData->Y = OCImage.dc_ptr.ptr8;
-			OCImage.CurrentFrameData->U = NULL;
-			OCImage.CurrentFrameData->V = NULL;
-			OCImage.current = 0;
-	
-			if(OCImage.dc_ptr.ptr8 == NULL)
-			{
- 				printf("PdGetOffscreenContextPtr failed\n");
- 				return -1;
-			}
-			
-			PhDCSetCurrent(OCImage.offscreen_context);
+    if (OCImage.offscreen_context == NULL)
+    {
+        fprintf(stderr, "ph_SetupOCImage(): PdCreateOffscreenContext failed !\n");
+        return -1;
+    }
+
+    OCImage.Stride = OCImage.offscreen_context->pitch;	
+
+    if (OCImage.flags & SDL_DOUBLEBUF)
+    {
+        fprintf(stderr, "ph_SetupOCImage(): Hardware flag for doublebuf offscreen context\n");
+    }
+
+    OCImage.dc_ptr.ptr8 = (unsigned char *) PdGetOffscreenContextPtr(OCImage.offscreen_context);
 
-			screen->pixels = OCImage.CurrentFrameData->Y;
-	
-			this->UpdateRects = ph_OCUpdate;
+    if (OCImage.dc_ptr.ptr8 == NULL)
+    {
+        fprintf(stderr, "ph_SetupOCImage(): PdGetOffscreenContextPtr failed !\n");
+        return -1;
+    }
 
-	return 0;
+    OCImage.CurrentFrameData = OCImage.FrameData0;
+    OCImage.CurrentFrameData->Y = OCImage.dc_ptr.ptr8;
+    OCImage.CurrentFrameData->U = NULL;
+    OCImage.CurrentFrameData->V = NULL;
+    OCImage.current = 0;
+
+    PhDCSetCurrent(OCImage.offscreen_context);
+
+    screen->pixels = OCImage.CurrentFrameData->Y;
+
+    this->UpdateRects = ph_OCUpdate;
+
+    return 0;
 }
 
 int ph_SetupOpenGLImage(_THIS, SDL_Surface* screen)
@@ -242,7 +239,6 @@
         return ph_SetupImage(this, screen);
     }      
 }
-
 int ph_AllocHWSurface(_THIS, SDL_Surface *surface)
 {
     return(-1);
@@ -302,20 +298,21 @@
 
         if (PgDrawPhImageRectmx(&ph_pos, SDL_Image, &ph_rect, 0) < 0)
         {
-            fprintf(stderr,"ph_NormalUpdate: PgDrawPhImageRectmx failed.\n");
+            fprintf(stderr,"ph_NormalUpdate(): PgDrawPhImageRectmx failed.\n");
         }
     }
 
     if (PgFlush() < 0)
     {
-    	fprintf(stderr,"ph_NormalUpdate: PgFlush failed.\n");
+    	fprintf(stderr,"ph_NormalUpdate(): PgFlush failed.\n");
     }
 }
+
 void ph_OCUpdate(_THIS, int numrects, SDL_Rect *rects)
 {
     PhPoint_t zero = {0};
-    PhRect_t src_rect;
-    PhRect_t dest_rect;
+    PhArea_t src_rect;
+    PhArea_t dest_rect;
 
     if(OCImage.direct_context == NULL)
     {
@@ -323,7 +320,7 @@
     }
 
     PgSetRegion(PtWidgetRid(window));
-    PgSetClipping(0,NULL);
+    PgSetClipping(0, NULL);
     PgWaitHWIdle();
 
     for (i=0; i<numrects; ++i)
@@ -333,24 +330,27 @@
             continue;
         }
 
-        src_rect.ul.x=rects[i].x;
-        src_rect.ul.y=rects[i].y;
-        dest_rect.ul.x=rects[i].x;
-        dest_rect.ul.y=rects[i].y;
-
-        dest_rect.lr.x=src_rect.lr.x= rects[i].x +rects[i].w;
-        dest_rect.lr.y=src_rect.lr.y= rects[i].y +rects[i].h;
+        src_rect.pos.x=rects[i].x;
+        src_rect.pos.y=rects[i].y;
+        dest_rect.pos.x=rects[i].x;
+        dest_rect.pos.y=rects[i].y;
 
-        zero.x = zero.y = 0;
-        PgSetTranslation (&zero, 0);
+        src_rect.size.w=rects[i].w;
+        src_rect.size.h=rects[i].h;
+        dest_rect.size.w=rects[i].w;
+        dest_rect.size.h=rects[i].h;
+
+        zero.x = 0;
+        zero.y = 0;
+        PgSetTranslation(&zero, 0);
         PgSetRegion(PtWidgetRid(window));
-        PgSetClipping(0,NULL);
-        PgContextBlitArea(OCImage.offscreen_context, (PhArea_t *)(&src_rect), NULL, (PhArea_t *)(&dest_rect));
+        PgSetClipping(0, NULL);
+        PgContextBlitArea(OCImage.offscreen_context, &src_rect, NULL, &dest_rect);
+    }
 
-    }
     if (PgFlush() < 0)
     {
-        fprintf(stderr,"ph_OCUpdate: PgFlush failed.\n");
+        fprintf(stderr,"ph_OCUpdate(): PgFlush failed.\n");
     }
     
     /* later used to toggling double buffer */
diff -r e405cf8bf580 -r ba72f259bc88 src/video/photon/SDL_ph_video.c
--- a/src/video/photon/SDL_ph_video.c	Sun May 19 19:52:32 2002 +0000
+++ b/src/video/photon/SDL_ph_video.c	Sun May 19 19:54:01 2002 +0000
@@ -255,6 +255,16 @@
     if ((flags & SDL_OPENGL)!=SDL_OPENGL)
     {
         pargc=0;
+        
+        // prevent using HWSURFACE in window mode if desktop bpp != chosen bpp
+        if ((flags & SDL_HWSURFACE) && (!(flags & SDL_FULLSCREEN)))
+        {
+           if (desktopbpp!=bpp)
+           {
+              fprintf(stderr, "ph_SetVideoMode(): SDL_HWSURFACE available only with chosen bpp equal desktop bpp !\n");
+              return NULL;
+           }
+        }
 
         PtSetArg(&arg[pargc++], Pt_ARG_DIM, &dim, 0);
         PtSetArg(&arg[pargc++], Pt_ARG_RESIZE_FLAGS, Pt_FALSE, Pt_RESIZE_XY_AS_REQUIRED);
@@ -317,7 +327,7 @@
 #else
     if (flags & SDL_OPENGL) /* if no built-in OpenGL support */
     {
-        fprintf(stderr, "error: no OpenGL support, try to recompile library.\n");
+        fprintf(stderr, "ph_SetVideoMode(): no OpenGL support, try to recompile library.\n");
         current->flags=(flags & (~SDL_OPENGL));
         return NULL;
 #endif /* HAVE_OPENGL */
@@ -332,7 +342,7 @@
             {
                 if ((mode = get_mode_any_format(width, height, bpp)) == 0)
                 {
-                    fprintf(stderr,"error: get_mode_any_format failed\n");
+                    fprintf(stderr,"ph_SetVideoMode(): get_mode_any_format failed !\n");
                     exit(1);
                 }
             }
@@ -340,7 +350,7 @@
             {
                 if ((mode = get_mode(width, height, bpp)) == 0)
                 {
-                    fprintf(stderr,"error: get_mode failed\n");
+                    fprintf(stderr,"ph_SetVideoMode(): get_mode failed !\n");
                     exit(1);
                 }
             }
@@ -362,7 +372,7 @@
 
             if (PgSetVideoMode(&settings) < 0)
             {
-                fprintf(stderr,"error: PgSetVideoMode failed\n");
+                fprintf(stderr,"ph_SetVideoMode(): PgSetVideoMode failed !\n");
             }
 
             current->flags = (flags & (~SDL_RESIZABLE)); /* no resize for Direct Context */
@@ -424,8 +434,15 @@
     current->format->BitsPerPixel = bpp;
     current->format->BytesPerPixel = (bpp+7)/8;
     current->pitch = SDL_CalculatePitch(current);
+
     /* Must call at least once it setup image planes */
-    ph_ResizeImage(this, current, flags);
+    rtnval = ph_ResizeImage(this, current, flags);
+    
+    if (rtnval==-1)
+    {
+        fprintf(stderr,"ph_SetVideoMode(): ph_ResizeImage failed !\n");
+        return NULL;
+    }
 
     /* delayed set caption call */
     if (captionflag)
@@ -512,9 +529,10 @@
                 SDL_Image->palette[i] |= colors[i-firstcolor].g<<8;
                 SDL_Image->palette[i] |= colors[i-firstcolor].b;
             }
+
+           /* image needs to be redrawed, very slow method */
+           PgDrawPhImage(&point, SDL_Image, 0);
         }
-        /* image needs to be redrawed, very slow method */
-        PgDrawPhImage(&point, SDL_Image, 0);
     }
     else
     {
@@ -533,7 +551,10 @@
                 /* window mode must use soft palette */
                 PgSetPalette((PgColor_t*)&syspalph[firstcolor], 0, firstcolor, ncolors, Pg_PALSET_SOFT, 0);
                 /* image needs to be redrawed, very slow method */
-                PgDrawPhImage(&point, SDL_Image, 0);
+                if (SDL_Image)
+                {
+                   PgDrawPhImage(&point, SDL_Image, 0);
+                }
             }
             else
             {
@@ -602,7 +623,7 @@
 
     if (oglctx==NULL)
     {
-        fprintf(stderr,"ph_SetupOpenGLContext: cannot create OpenGL context.\n");
+        fprintf(stderr,"ph_SetupOpenGLContext(): cannot create OpenGL context.\n");
         return (-1);
     }
 
diff -r e405cf8bf580 -r ba72f259bc88 src/video/photon/SDL_phyuv.c
--- a/src/video/photon/SDL_phyuv.c	Sun May 19 19:52:32 2002 +0000
+++ b/src/video/photon/SDL_phyuv.c	Sun May 19 19:54:01 2002 +0000
@@ -29,7 +29,6 @@
 
 #include <stdlib.h>
 #include <string.h>
-//#include <ncurses.h> //only for bool
 #ifndef bool
 #define bool char
 #define TRUE 1
@@ -104,7 +103,7 @@
 	FRAMEDATA *FrameData0;
 	FRAMEDATA *FrameData1;
 	PgScalerProps_t	props;
-	PgScalerCaps_t		caps;
+	PgScalerCaps_t	caps;
 	PgVideoChannel_t *channel;
 	SDL_Rect CurrentWindow;
 	long format;
@@ -142,7 +141,7 @@
 
 }
 
-SDL_Overlay *ph_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
+SDL_Overlay* ph_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
 {
 	SDL_Overlay *overlay;
 	struct private_yuvhwdata *hwdata;
@@ -162,7 +161,8 @@
 	PhDCSetCurrent(0);  //Need to set draw context to window esp. if we we in Offscreeen mode
 
 	/* Create the overlay structure */
-	overlay = (SDL_Overlay *)malloc(sizeof *overlay);
+	overlay = (SDL_Overlay *)malloc(sizeof(SDL_Overlay));
+        memset(overlay, 0x00, sizeof(SDL_Overlay));
 	if ( overlay == NULL ) {
 		SDL_OutOfMemory();
 		return(NULL);
@@ -178,7 +178,8 @@
 	overlay->hwfuncs = &ph_yuvfuncs;
 
 	/* Create the pixel data and lookup tables */
-	hwdata = (struct private_yuvhwdata *)malloc(sizeof *hwdata);
+	hwdata = (struct private_yuvhwdata *)malloc(sizeof(struct private_yuvhwdata));
+        memset(hwdata, 0x00, sizeof(struct private_yuvhwdata));
 	overlay->hwdata = hwdata;
 	if ( hwdata == NULL ) {
 		SDL_OutOfMemory();
@@ -186,54 +187,41 @@
 		return(NULL);
 	}
 	
-		if (overlay->hwdata->channel == NULL)
-	{
-	
-  
-		if ((overlay->hwdata->channel = PgCreateVideoChannel(Pg_VIDEO_CHANNEL_SCALER,0)) == NULL) 
-		{
-			SDL_SetError("Create channel failed:%s\n", strerror( errno ));
-			free(overlay->hwdata);
-			free(overlay);
-			return(NULL);
-		}
-#if 0
-		overlay->hwdata->caps.size = sizeof (overlay->hwdata->caps);
-		PgGetScalerCapabilities(overlay->hwdata->channel, 0, &(overlay->hwdata->caps));
-		if (overlay->hwdata->caps.flags & Pg_SCALER_CAP_DOUBLE_BUFFER)
-			overlay->hwdata->props.flags |= Pg_SCALER_PROP_DOUBLE_BUFFER;
-#endif	
-	}
+    if (overlay->hwdata->channel == NULL)
+    {
+        if ((overlay->hwdata->channel = PgCreateVideoChannel(Pg_VIDEO_CHANNEL_SCALER,0)) == NULL) 
+        {
+            SDL_SetError("ph_CreateYUVOverlay(): Create channel failed: %s\n", strerror( errno ));
+            free(overlay->hwdata);
+            free(overlay);
+            return (NULL);
+        }
+    }
 
-overlay->hwdata->CurrentWindow.x = 0;
-overlay->hwdata->CurrentWindow.y = 0;
-overlay->hwdata->CurrentWindow.w = 320;
-overlay->hwdata->CurrentWindow.h = 240;
+    overlay->hwdata->CurrentWindow.x = 0;
+    overlay->hwdata->CurrentWindow.y = 0;
+    overlay->hwdata->CurrentWindow.w = 320;
+    overlay->hwdata->CurrentWindow.h = 240;
 
-
-
-overlay->hwdata->State = OVERLAY_STATE_UNINIT;
+    overlay->hwdata->State = OVERLAY_STATE_UNINIT;
 
-overlay->hwdata->screen_bpp = 2;
-overlay->hwdata->scaler_on = FALSE;
-
-overlay->hwdata->screen_width = 1024;
-overlay->hwdata->screen_height  = 768;
+    overlay->hwdata->screen_bpp = 2;
+    overlay->hwdata->scaler_on = FALSE;
+    overlay->hwdata->screen_width = 1024;
+    overlay->hwdata->screen_height  = 768;
 
-overlay->hwdata->FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
-overlay->hwdata->FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
+    overlay->hwdata->FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
+    overlay->hwdata->FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
 
-overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps);
-
+    overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps);
 
 //Note you really don't need to do this for SDL as you are given a format, but this is a good example
 
-xv_port = -1;
-i=0;
-	
+    xv_port = -1;
+    i=0;
+
 while(PgGetScalerCapabilities(overlay->hwdata->channel, i++, &(overlay->hwdata->caps)) == 0) 
 {
-
 		if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_YV12) //in SDL
 		{