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diff src/video/windx5/SDL_dx5yuv.c @ 1895:c121d94672cb

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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 10 Jul 2006 21:04:37 +0000
parents 51038e80ae59
children
line wrap: on
line diff
--- a/src/video/windx5/SDL_dx5yuv.c	Thu Jul 06 18:01:37 2006 +0000
+++ b/src/video/windx5/SDL_dx5yuv.c	Mon Jul 10 21:04:37 2006 +0000
@@ -31,265 +31,279 @@
 
 /* The functions used to manipulate software video overlays */
 static struct private_yuvhwfuncs dx5_yuvfuncs = {
-	DX5_LockYUVOverlay,
-	DX5_UnlockYUVOverlay,
-	DX5_DisplayYUVOverlay,
-	DX5_FreeYUVOverlay
+    DX5_LockYUVOverlay,
+    DX5_UnlockYUVOverlay,
+    DX5_DisplayYUVOverlay,
+    DX5_FreeYUVOverlay
 };
 
-struct private_yuvhwdata {
-	LPDIRECTDRAWSURFACE3 surface;
+struct private_yuvhwdata
+{
+    LPDIRECTDRAWSURFACE3 surface;
 
-	/* These are just so we don't have to allocate them separately */
-	Uint16 pitches[3];
-	Uint8 *planes[3];
+    /* These are just so we don't have to allocate them separately */
+    Uint16 pitches[3];
+    Uint8 *planes[3];
 };
 
 
-static LPDIRECTDRAWSURFACE3 CreateYUVSurface(_THIS,
-                                         int width, int height, Uint32 format)
+static LPDIRECTDRAWSURFACE3
+CreateYUVSurface(_THIS, int width, int height, Uint32 format)
 {
-	HRESULT result;
-	LPDIRECTDRAWSURFACE  dd_surface1;
-	LPDIRECTDRAWSURFACE3 dd_surface3;
-	DDSURFACEDESC ddsd;
+    HRESULT result;
+    LPDIRECTDRAWSURFACE dd_surface1;
+    LPDIRECTDRAWSURFACE3 dd_surface3;
+    DDSURFACEDESC ddsd;
 
-	/* Set up the surface description */
-	SDL_memset(&ddsd, 0, sizeof(ddsd));
-	ddsd.dwSize = sizeof(ddsd);
-	ddsd.dwFlags = (DDSD_WIDTH|DDSD_HEIGHT|DDSD_CAPS|DDSD_PIXELFORMAT);
-	ddsd.dwWidth = width;
-	ddsd.dwHeight= height;
+    /* Set up the surface description */
+    SDL_memset(&ddsd, 0, sizeof(ddsd));
+    ddsd.dwSize = sizeof(ddsd);
+    ddsd.dwFlags = (DDSD_WIDTH | DDSD_HEIGHT | DDSD_CAPS | DDSD_PIXELFORMAT);
+    ddsd.dwWidth = width;
+    ddsd.dwHeight = height;
 #ifdef USE_DIRECTX_OVERLAY
-	ddsd.ddsCaps.dwCaps = (DDSCAPS_OVERLAY|DDSCAPS_VIDEOMEMORY);
+    ddsd.ddsCaps.dwCaps = (DDSCAPS_OVERLAY | DDSCAPS_VIDEOMEMORY);
 #else
-	ddsd.ddsCaps.dwCaps = (DDSCAPS_OFFSCREENPLAIN|DDSCAPS_VIDEOMEMORY);
+    ddsd.ddsCaps.dwCaps = (DDSCAPS_OFFSCREENPLAIN | DDSCAPS_VIDEOMEMORY);
 #endif
-	ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat);
-	ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
-	ddsd.ddpfPixelFormat.dwFourCC = format;
+    ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat);
+    ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
+    ddsd.ddpfPixelFormat.dwFourCC = format;
 
-	/* Create the DirectDraw video surface */
-	result = IDirectDraw2_CreateSurface(ddraw2, &ddsd, &dd_surface1, NULL); 
-	if ( result != DD_OK ) {
-		SetDDerror("DirectDraw2::CreateSurface", result);
-		return(NULL);
-	}
-	result = IDirectDrawSurface_QueryInterface(dd_surface1,
-			&IID_IDirectDrawSurface3, (LPVOID *)&dd_surface3);
-	IDirectDrawSurface_Release(dd_surface1);
-	if ( result != DD_OK ) {
-		SetDDerror("DirectDrawSurface::QueryInterface", result);
-		return(NULL);
-	}
+    /* Create the DirectDraw video surface */
+    result = IDirectDraw2_CreateSurface(ddraw2, &ddsd, &dd_surface1, NULL);
+    if (result != DD_OK) {
+        SetDDerror("DirectDraw2::CreateSurface", result);
+        return (NULL);
+    }
+    result = IDirectDrawSurface_QueryInterface(dd_surface1,
+                                               &IID_IDirectDrawSurface3,
+                                               (LPVOID *) & dd_surface3);
+    IDirectDrawSurface_Release(dd_surface1);
+    if (result != DD_OK) {
+        SetDDerror("DirectDrawSurface::QueryInterface", result);
+        return (NULL);
+    }
 
-	/* Make sure the surface format was set properly */
-	SDL_memset(&ddsd, 0, sizeof(ddsd));
-	ddsd.dwSize = sizeof(ddsd);
-	result = IDirectDrawSurface3_Lock(dd_surface3, NULL,
-					  &ddsd, DDLOCK_NOSYSLOCK, NULL);
-	if ( result != DD_OK ) {
-		SetDDerror("DirectDrawSurface3::Lock", result);
-		IDirectDrawSurface_Release(dd_surface3);
-		return(NULL);
-	}
-	IDirectDrawSurface3_Unlock(dd_surface3, NULL);
+    /* Make sure the surface format was set properly */
+    SDL_memset(&ddsd, 0, sizeof(ddsd));
+    ddsd.dwSize = sizeof(ddsd);
+    result = IDirectDrawSurface3_Lock(dd_surface3, NULL,
+                                      &ddsd, DDLOCK_NOSYSLOCK, NULL);
+    if (result != DD_OK) {
+        SetDDerror("DirectDrawSurface3::Lock", result);
+        IDirectDrawSurface_Release(dd_surface3);
+        return (NULL);
+    }
+    IDirectDrawSurface3_Unlock(dd_surface3, NULL);
 
-	if ( !(ddsd.ddpfPixelFormat.dwFlags & DDPF_FOURCC) ||
-	      (ddsd.ddpfPixelFormat.dwFourCC != format) ) {
-		SDL_SetError("DDraw didn't use requested FourCC format");
-		IDirectDrawSurface_Release(dd_surface3);
-		return(NULL);
-	}
+    if (!(ddsd.ddpfPixelFormat.dwFlags & DDPF_FOURCC) ||
+        (ddsd.ddpfPixelFormat.dwFourCC != format)) {
+        SDL_SetError("DDraw didn't use requested FourCC format");
+        IDirectDrawSurface_Release(dd_surface3);
+        return (NULL);
+    }
 
-	/* We're ready to go! */
-	return(dd_surface3);
+    /* We're ready to go! */
+    return (dd_surface3);
 }
 
 #ifdef DEBUG_YUV
-static char *PrintFOURCC(Uint32 code)
+static char *
+PrintFOURCC(Uint32 code)
 {
-	static char buf[5];
+    static char buf[5];
 
-	buf[3] = code >> 24;
-	buf[2] = (code >> 16) & 0xFF;
-	buf[1] = (code >> 8) & 0xFF;
-	buf[0] = (code & 0xFF);
-	return(buf);
+    buf[3] = code >> 24;
+    buf[2] = (code >> 16) & 0xFF;
+    buf[1] = (code >> 8) & 0xFF;
+    buf[0] = (code & 0xFF);
+    return (buf);
 }
 #endif
 
-SDL_Overlay *DX5_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
+SDL_Overlay *
+DX5_CreateYUVOverlay(_THIS, int width, int height, Uint32 format,
+                     SDL_Surface * display)
 {
-	SDL_Overlay *overlay;
-	struct private_yuvhwdata *hwdata;
+    SDL_Overlay *overlay;
+    struct private_yuvhwdata *hwdata;
 
 #ifdef DEBUG_YUV
-	DWORD numcodes;
-	DWORD *codes;
+    DWORD numcodes;
+    DWORD *codes;
 
-	printf("FOURCC format requested: 0x%x\n", PrintFOURCC(format));
-	IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, NULL);
-	if ( numcodes ) {
-		DWORD i;
-		codes = SDL_malloc(numcodes*sizeof(*codes));
-		if ( codes ) {
-			IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, codes);
-			for ( i=0; i<numcodes; ++i ) {
-				fprintf(stderr, "Code %d: 0x%x\n", i, PrintFOURCC(codes[i]));
-			}
-			SDL_free(codes);
-		}
-	} else {
-		fprintf(stderr, "No FOURCC codes supported\n");
-	}
+    printf("FOURCC format requested: 0x%x\n", PrintFOURCC(format));
+    IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, NULL);
+    if (numcodes) {
+        DWORD i;
+        codes = SDL_malloc(numcodes * sizeof(*codes));
+        if (codes) {
+            IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, codes);
+            for (i = 0; i < numcodes; ++i) {
+                fprintf(stderr, "Code %d: 0x%x\n", i, PrintFOURCC(codes[i]));
+            }
+            SDL_free(codes);
+        }
+    } else {
+        fprintf(stderr, "No FOURCC codes supported\n");
+    }
 #endif
 
-	/* Create the overlay structure */
-	overlay = (SDL_Overlay *)SDL_malloc(sizeof *overlay);
-	if ( overlay == NULL ) {
-		SDL_OutOfMemory();
-		return(NULL);
-	}
-	SDL_memset(overlay, 0, (sizeof *overlay));
+    /* Create the overlay structure */
+    overlay = (SDL_Overlay *) SDL_malloc(sizeof *overlay);
+    if (overlay == NULL) {
+        SDL_OutOfMemory();
+        return (NULL);
+    }
+    SDL_memset(overlay, 0, (sizeof *overlay));
 
-	/* Fill in the basic members */
-	overlay->format = format;
-	overlay->w = width;
-	overlay->h = height;
+    /* Fill in the basic members */
+    overlay->format = format;
+    overlay->w = width;
+    overlay->h = height;
 
-	/* Set up the YUV surface function structure */
-	overlay->hwfuncs = &dx5_yuvfuncs;
+    /* Set up the YUV surface function structure */
+    overlay->hwfuncs = &dx5_yuvfuncs;
 
-	/* Create the pixel data and lookup tables */
-	hwdata = (struct private_yuvhwdata *)SDL_malloc(sizeof *hwdata);
-	overlay->hwdata = hwdata;
-	if ( hwdata == NULL ) {
-		SDL_OutOfMemory();
-		SDL_FreeYUVOverlay(overlay);
-		return(NULL);
-	}
-	hwdata->surface = CreateYUVSurface(this, width, height, format);
-	if ( hwdata->surface == NULL ) {
-		SDL_FreeYUVOverlay(overlay);
-		return(NULL);
-	}
-	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_OutOfMemory();
+        SDL_FreeYUVOverlay(overlay);
+        return (NULL);
+    }
+    hwdata->surface = CreateYUVSurface(this, width, height, format);
+    if (hwdata->surface == NULL) {
+        SDL_FreeYUVOverlay(overlay);
+        return (NULL);
+    }
+    overlay->hw_overlay = 1;
 
-	/* Set up the plane pointers */
-	overlay->pitches = hwdata->pitches;
-	overlay->pixels = hwdata->planes;
-	switch (format) {
-	    case SDL_YV12_OVERLAY:
-	    case SDL_IYUV_OVERLAY:
-		overlay->planes = 3;
-		break;
-	    default:
-		overlay->planes = 1;
-		break;
-	}
+    /* Set up the plane pointers */
+    overlay->pitches = hwdata->pitches;
+    overlay->pixels = hwdata->planes;
+    switch (format) {
+    case SDL_YV12_OVERLAY:
+    case SDL_IYUV_OVERLAY:
+        overlay->planes = 3;
+        break;
+    default:
+        overlay->planes = 1;
+        break;
+    }
 
-	/* We're all done.. */
-	return(overlay);
+    /* We're all done.. */
+    return (overlay);
 }
 
-int DX5_LockYUVOverlay(_THIS, SDL_Overlay *overlay)
+int
+DX5_LockYUVOverlay(_THIS, SDL_Overlay * overlay)
 {
-	HRESULT result;
-	LPDIRECTDRAWSURFACE3 surface;
-	DDSURFACEDESC ddsd;
+    HRESULT result;
+    LPDIRECTDRAWSURFACE3 surface;
+    DDSURFACEDESC ddsd;
 
-	surface = overlay->hwdata->surface;
-	SDL_memset(&ddsd, 0, sizeof(ddsd));
-	ddsd.dwSize = sizeof(ddsd);
-	result = IDirectDrawSurface3_Lock(surface, NULL,
-					  &ddsd, DDLOCK_NOSYSLOCK, NULL);
-	if ( result == DDERR_SURFACELOST ) {
-		result = IDirectDrawSurface3_Restore(surface);
-		result = IDirectDrawSurface3_Lock(surface, NULL, &ddsd, 
-					(DDLOCK_NOSYSLOCK|DDLOCK_WAIT), NULL);
-	}
-	if ( result != DD_OK ) {
-		SetDDerror("DirectDrawSurface3::Lock", result);
-		return(-1);
-	}
+    surface = overlay->hwdata->surface;
+    SDL_memset(&ddsd, 0, sizeof(ddsd));
+    ddsd.dwSize = sizeof(ddsd);
+    result = IDirectDrawSurface3_Lock(surface, NULL,
+                                      &ddsd, DDLOCK_NOSYSLOCK, NULL);
+    if (result == DDERR_SURFACELOST) {
+        result = IDirectDrawSurface3_Restore(surface);
+        result = IDirectDrawSurface3_Lock(surface, NULL, &ddsd,
+                                          (DDLOCK_NOSYSLOCK | DDLOCK_WAIT),
+                                          NULL);
+    }
+    if (result != DD_OK) {
+        SetDDerror("DirectDrawSurface3::Lock", result);
+        return (-1);
+    }
 
-	/* Find the pitch and offset values for the overlay */
+    /* Find the pitch and offset values for the overlay */
 #if defined(NONAMELESSUNION)
-	overlay->pitches[0] = (Uint16)ddsd.u1.lPitch;
+    overlay->pitches[0] = (Uint16) ddsd.u1.lPitch;
 #else
-	overlay->pitches[0] = (Uint16)ddsd.lPitch;
+    overlay->pitches[0] = (Uint16) ddsd.lPitch;
 #endif
-	overlay->pixels[0] = (Uint8 *)ddsd.lpSurface;
-	switch (overlay->format) {
-	    case SDL_YV12_OVERLAY:
-	    case SDL_IYUV_OVERLAY:
-		/* Add the two extra planes */
-		overlay->pitches[1] = overlay->pitches[0] / 2;
-		overlay->pitches[2] = overlay->pitches[0] / 2;
-	        overlay->pixels[1] = overlay->pixels[0] +
-		                     overlay->pitches[0] * overlay->h;
-	        overlay->pixels[2] = overlay->pixels[1] +
-		                     overlay->pitches[1] * overlay->h / 2;
-	        break;
-	    default:
-		/* Only one plane, no worries */
-		break;
-	}
-	return(0);
+    overlay->pixels[0] = (Uint8 *) ddsd.lpSurface;
+    switch (overlay->format) {
+    case SDL_YV12_OVERLAY:
+    case SDL_IYUV_OVERLAY:
+        /* Add the two extra planes */
+        overlay->pitches[1] = overlay->pitches[0] / 2;
+        overlay->pitches[2] = overlay->pitches[0] / 2;
+        overlay->pixels[1] = overlay->pixels[0] +
+            overlay->pitches[0] * overlay->h;
+        overlay->pixels[2] = overlay->pixels[1] +
+            overlay->pitches[1] * overlay->h / 2;
+        break;
+    default:
+        /* Only one plane, no worries */
+        break;
+    }
+    return (0);
 }
 
-void DX5_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)
+void
+DX5_UnlockYUVOverlay(_THIS, SDL_Overlay * overlay)
 {
-	LPDIRECTDRAWSURFACE3 surface;
+    LPDIRECTDRAWSURFACE3 surface;
 
-	surface = overlay->hwdata->surface;
-	IDirectDrawSurface3_Unlock(surface, NULL);
+    surface = overlay->hwdata->surface;
+    IDirectDrawSurface3_Unlock(surface, NULL);
 }
 
-int DX5_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst)
+int
+DX5_DisplayYUVOverlay(_THIS, SDL_Overlay * overlay, SDL_Rect * src,
+                      SDL_Rect * dst)
 {
-	HRESULT result;
-	LPDIRECTDRAWSURFACE3 surface;
-	RECT srcrect, dstrect;
+    HRESULT result;
+    LPDIRECTDRAWSURFACE3 surface;
+    RECT srcrect, dstrect;
 
-	surface = overlay->hwdata->surface;
-	srcrect.top = src->y;
-	srcrect.bottom = srcrect.top+src->h;
-	srcrect.left = src->x;
-	srcrect.right = srcrect.left+src->w;
-	dstrect.top = SDL_bounds.top+dst->y;
-	dstrect.left = SDL_bounds.left+dst->x;
-	dstrect.bottom = dstrect.top+dst->h;
-	dstrect.right = dstrect.left+dst->w;
+    surface = overlay->hwdata->surface;
+    srcrect.top = src->y;
+    srcrect.bottom = srcrect.top + src->h;
+    srcrect.left = src->x;
+    srcrect.right = srcrect.left + src->w;
+    dstrect.top = SDL_bounds.top + dst->y;
+    dstrect.left = SDL_bounds.left + dst->x;
+    dstrect.bottom = dstrect.top + dst->h;
+    dstrect.right = dstrect.left + dst->w;
 #ifdef USE_DIRECTX_OVERLAY
-	result = IDirectDrawSurface3_UpdateOverlay(surface, &srcrect,
-				SDL_primary, &dstrect, DDOVER_SHOW, NULL);
-	if ( result != DD_OK ) {
-		SetDDerror("DirectDrawSurface3::UpdateOverlay", result);
-		return(-1);
-	}
+    result = IDirectDrawSurface3_UpdateOverlay(surface, &srcrect,
+                                               SDL_primary, &dstrect,
+                                               DDOVER_SHOW, NULL);
+    if (result != DD_OK) {
+        SetDDerror("DirectDrawSurface3::UpdateOverlay", result);
+        return (-1);
+    }
 #else
-	result = IDirectDrawSurface3_Blt(SDL_primary, &dstrect, surface, &srcrect,
-							DDBLT_WAIT, NULL);
-	if ( result != DD_OK ) {
-		SetDDerror("DirectDrawSurface3::Blt", result);
-		return(-1);
-	}
+    result =
+        IDirectDrawSurface3_Blt(SDL_primary, &dstrect, surface, &srcrect,
+                                DDBLT_WAIT, NULL);
+    if (result != DD_OK) {
+        SetDDerror("DirectDrawSurface3::Blt", result);
+        return (-1);
+    }
 #endif
-	return(0);
+    return (0);
 }
 
-void DX5_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
+void
+DX5_FreeYUVOverlay(_THIS, SDL_Overlay * overlay)
 {
-	struct private_yuvhwdata *hwdata;
+    struct private_yuvhwdata *hwdata;
 
-	hwdata = overlay->hwdata;
-	if ( hwdata ) {
-		if ( hwdata->surface ) {
-			IDirectDrawSurface_Release(hwdata->surface);
-		}
-		SDL_free(hwdata);
-	}
+    hwdata = overlay->hwdata;
+    if (hwdata) {
+        if (hwdata->surface) {
+            IDirectDrawSurface_Release(hwdata->surface);
+        }
+        SDL_free(hwdata);
+    }
 }
 
+/* vi: set ts=4 sw=4 expandtab: */