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// Copyright 2016 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <directfb.h>
#include "starboard/blitter.h"
#include "starboard/common/log.h"
#include "starboard/shared/directfb/blitter_internal.h"
bool SbBlitterIsPixelFormatSupportedByPixelData(
SbBlitterDevice device,
SbBlitterPixelDataFormat pixel_format) {
if (!SbBlitterIsDeviceValid(device)) {
SB_DLOG(ERROR) << __FUNCTION__ << ": Invalid device.";
return false;
}
if (pixel_format == kSbBlitterPixelDataFormatA8) {
return true;
}
// DirectFB supports ARGB but not RGBA.
// Since DirectFB specifies its color formats in word-order, we must swap
// them to cater to the Blitter API's specification of byte-order color
// formats.
#if SB_IS_LITTLE_ENDIAN
return pixel_format == kSbBlitterPixelDataFormatBGRA8;
#else
return pixel_format == kSbBlitterPixelDataFormatARGB8;
#endif
}