SkCodecImageGenerator.cpp File Reference

#include "src/codec/SkCodecImageGenerator.h"
#include "include/codec/SkEncodedOrigin.h"
#include "include/codec/SkPixmapUtils.h"
#include "include/core/SkAlphaType.h"
#include "include/core/SkData.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkPixmap.h"
#include "include/core/SkStream.h"
#include "include/core/SkTypes.h"
#include "src/codec/SkPixmapUtilsPriv.h"
#include <utility>

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Functions
static SkImageInfo	adjust_info (SkCodec *codec, std::optional< SkAlphaType > at)

Function Documentation

adjust_info()

static SkImageInfo adjust_info ( SkCodec *  codec, std::optional< SkAlphaType >  at  )

static

Definition at line 38 of file SkCodecImageGenerator.cpp.

                                                                            {
    SkASSERT(at != kOpaque_SkAlphaType);
    SkImageInfo info = codec->getInfo();
    if (at.has_value()) {
        // If a specific alpha type was requested, use that.
        info = info.makeAlphaType(*at);
    } else if (kUnpremul_SkAlphaType == info.alphaType()) {
        // Otherwise, prefer premul over unpremul (this produces better filtering in general)
        info = info.makeAlphaType(kPremul_SkAlphaType);
    }
    if (SkEncodedOriginSwapsWidthHeight(codec->getOrigin())) {
        info = SkPixmapUtils::SwapWidthHeight(info);
    }
    return info;
}