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-rwxr-xr-xSource/DirectFB/src/display/idirectfbpalette.c365
1 files changed, 365 insertions, 0 deletions
diff --git a/Source/DirectFB/src/display/idirectfbpalette.c b/Source/DirectFB/src/display/idirectfbpalette.c
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+/*
+ (c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
+ (c) Copyright 2000-2004 Convergence (integrated media) GmbH
+
+ All rights reserved.
+
+ Written by Denis Oliver Kropp <dok@directfb.org>,
+ Andreas Hundt <andi@fischlustig.de>,
+ Sven Neumann <neo@directfb.org>,
+ Ville Syrjälä <syrjala@sci.fi> and
+ Claudio Ciccani <klan@users.sf.net>.
+
+ 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 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <math.h>
+
+
+#include <directfb.h>
+
+#include <core/surface.h>
+#include <core/palette.h>
+
+#include <direct/interface.h>
+#include <direct/mem.h>
+#include <direct/memcpy.h>
+#include <direct/util.h>
+
+#include <gfx/convert.h>
+#include <gfx/util.h>
+
+#include "idirectfbpalette.h"
+
+
+
+static void
+IDirectFBPalette_Destruct( IDirectFBPalette *thiz )
+{
+ IDirectFBPalette_data *data = (IDirectFBPalette_data*)thiz->priv;
+
+ if (data->palette)
+ dfb_palette_unref( data->palette );
+
+ DIRECT_DEALLOCATE_INTERFACE( thiz );
+}
+
+static DirectResult
+IDirectFBPalette_AddRef( IDirectFBPalette *thiz )
+{
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ data->ref++;
+
+ return DFB_OK;
+}
+
+static DirectResult
+IDirectFBPalette_Release( IDirectFBPalette *thiz )
+{
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ if (--data->ref == 0)
+ IDirectFBPalette_Destruct( thiz );
+
+ return DFB_OK;
+}
+
+static DFBResult
+IDirectFBPalette_GetCapabilities( IDirectFBPalette *thiz,
+ DFBPaletteCapabilities *caps )
+{
+ CorePalette *palette;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ palette = data->palette;
+ if (!palette)
+ return DFB_DESTROYED;
+
+ if (!caps)
+ return DFB_INVARG;
+
+ /* FIXME: no caps yet */
+ *caps = DPCAPS_NONE;
+
+ return DFB_OK;
+}
+
+static DFBResult
+IDirectFBPalette_GetSize( IDirectFBPalette *thiz,
+ unsigned int *size )
+{
+ CorePalette *palette;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ palette = data->palette;
+ if (!palette)
+ return DFB_DESTROYED;
+
+ if (!size)
+ return DFB_INVARG;
+
+ *size = palette->num_entries;
+
+ return DFB_OK;
+}
+
+static DFBResult
+IDirectFBPalette_SetEntries( IDirectFBPalette *thiz,
+ const DFBColor *entries,
+ unsigned int num_entries,
+ unsigned int offset )
+{
+ int i;
+ CorePalette *palette;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ palette = data->palette;
+ if (!palette)
+ return DFB_DESTROYED;
+
+ if (!entries || offset + num_entries > palette->num_entries)
+ return DFB_INVARG;
+
+ if (num_entries) {
+ direct_memcpy( palette->entries + offset, entries, num_entries * sizeof(DFBColor));
+
+ for (i=offset; i<offset+num_entries; i++) {
+ palette->entries_yuv[i].a = palette->entries[i].a;
+
+ RGB_TO_YCBCR( palette->entries[i].r, palette->entries[i].g, palette->entries[i].b,
+ palette->entries_yuv[i].y, palette->entries_yuv[i].u, palette->entries_yuv[i].v );
+ }
+
+ dfb_palette_update( palette, offset, offset + num_entries - 1 );
+ }
+
+ return DFB_OK;
+}
+
+static DFBResult
+IDirectFBPalette_GetEntries( IDirectFBPalette *thiz,
+ DFBColor *entries,
+ unsigned int num_entries,
+ unsigned int offset )
+{
+ CorePalette *palette;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ palette = data->palette;
+ if (!palette)
+ return DFB_DESTROYED;
+
+ if (!entries || offset + num_entries > palette->num_entries)
+ return DFB_INVARG;
+
+ direct_memcpy( entries, palette->entries + offset, num_entries * sizeof(DFBColor));
+
+ return DFB_OK;
+}
+
+static DFBResult
+IDirectFBPalette_FindBestMatch( IDirectFBPalette *thiz,
+ u8 r,
+ u8 g,
+ u8 b,
+ u8 a,
+ unsigned int *index )
+{
+ CorePalette *palette;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ if (!index)
+ return DFB_INVARG;
+
+ palette = data->palette;
+ if (!palette)
+ return DFB_DESTROYED;
+
+ *index = dfb_palette_search( palette, r, g, b, a );
+
+ return DFB_OK;
+}
+
+static DFBResult
+IDirectFBPalette_CreateCopy( IDirectFBPalette *thiz,
+ IDirectFBPalette **interface )
+{
+ DFBResult ret;
+ IDirectFBPalette *iface;
+ CorePalette *palette = NULL;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ if (!data->palette)
+ return DFB_DESTROYED;
+
+ if (!interface)
+ return DFB_INVARG;
+
+ ret = dfb_palette_create( NULL, /* FIXME */
+ data->palette->num_entries, &palette );
+ if (ret)
+ return ret;
+
+ direct_memcpy( palette->entries, data->palette->entries,
+ palette->num_entries * sizeof(DFBColor));
+
+ dfb_palette_update( palette, 0, palette->num_entries - 1 );
+
+
+ DIRECT_ALLOCATE_INTERFACE( iface, IDirectFBPalette );
+
+ ret = IDirectFBPalette_Construct( iface, palette );
+
+ dfb_palette_unref( palette );
+
+ if (!ret)
+ *interface = iface;
+
+ return ret;
+}
+
+static DFBResult
+IDirectFBPalette_SetEntriesYUV( IDirectFBPalette *thiz,
+ const DFBColorYUV *entries,
+ unsigned int num_entries,
+ unsigned int offset )
+{
+ int i;
+ CorePalette *palette;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ palette = data->palette;
+ if (!palette)
+ return DFB_DESTROYED;
+
+ if (!entries || offset + num_entries > palette->num_entries)
+ return DFB_INVARG;
+
+ if (num_entries) {
+ direct_memcpy( palette->entries_yuv + offset, entries, num_entries * sizeof(DFBColorYUV));
+
+ for (i=offset; i<offset+num_entries; i++) {
+ palette->entries[i].a = palette->entries_yuv[i].a;
+
+ YCBCR_TO_RGB( palette->entries_yuv[i].y, palette->entries_yuv[i].u, palette->entries_yuv[i].v,
+ palette->entries[i].r, palette->entries[i].g, palette->entries[i].b );
+ }
+
+ dfb_palette_update( palette, offset, offset + num_entries - 1 );
+ }
+
+ return DFB_OK;
+}
+
+static DFBResult
+IDirectFBPalette_GetEntriesYUV( IDirectFBPalette *thiz,
+ DFBColorYUV *ret_entries,
+ unsigned int num_entries,
+ unsigned int offset )
+{
+ CorePalette *palette;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ palette = data->palette;
+ if (!palette)
+ return DFB_DESTROYED;
+
+ if (!ret_entries || offset + num_entries > palette->num_entries)
+ return DFB_INVARG;
+
+ direct_memcpy( ret_entries, palette->entries_yuv + offset, num_entries * sizeof(DFBColorYUV));
+
+ return DFB_OK;
+}
+
+static DFBResult
+IDirectFBPalette_FindBestMatchYUV( IDirectFBPalette *thiz,
+ u8 y,
+ u8 u,
+ u8 v,
+ u8 a,
+ unsigned int *ret_index )
+{
+ int r, g, b;
+ CorePalette *palette;
+
+ DIRECT_INTERFACE_GET_DATA(IDirectFBPalette)
+
+ if (!ret_index)
+ return DFB_INVARG;
+
+ palette = data->palette;
+ if (!palette)
+ return DFB_DESTROYED;
+
+ YCBCR_TO_RGB( y, u, v, r, g, b );
+
+ *ret_index = dfb_palette_search( palette, r, g, b, a );
+
+ return DFB_OK;
+}
+
+/******/
+
+DFBResult IDirectFBPalette_Construct( IDirectFBPalette *thiz,
+ CorePalette *palette )
+{
+ DIRECT_ALLOCATE_INTERFACE_DATA(thiz, IDirectFBPalette)
+
+ if (dfb_palette_ref( palette )) {
+ DIRECT_DEALLOCATE_INTERFACE(thiz);
+ return DFB_FAILURE;
+ }
+
+ data->ref = 1;
+ data->palette = palette;
+
+
+ thiz->AddRef = IDirectFBPalette_AddRef;
+ thiz->Release = IDirectFBPalette_Release;
+
+ thiz->GetCapabilities = IDirectFBPalette_GetCapabilities;
+ thiz->GetSize = IDirectFBPalette_GetSize;
+
+ thiz->SetEntries = IDirectFBPalette_SetEntries;
+ thiz->GetEntries = IDirectFBPalette_GetEntries;
+ thiz->FindBestMatch = IDirectFBPalette_FindBestMatch;
+
+ thiz->CreateCopy = IDirectFBPalette_CreateCopy;
+
+ thiz->SetEntriesYUV = IDirectFBPalette_SetEntriesYUV;
+ thiz->GetEntriesYUV = IDirectFBPalette_GetEntriesYUV;
+ thiz->FindBestMatchYUV = IDirectFBPalette_FindBestMatchYUV;
+
+ return DFB_OK;
+}
+
generated by cgit (git 2.34.1) at 2024-04-26 15:11:17 +0000