SkConvertPixels.h File Reference

#include <cstddef>

Go to the source code of this file.

Functions
bool	SkConvertPixels (const SkImageInfo &dstInfo, void *dstPixels, size_t dstRowBytes, const SkImageInfo &srcInfo, const void *srcPixels, size_t srcRowBytes)

Function Documentation

SkConvertPixels()

bool SkConvertPixels	(	const SkImageInfo &	dstInfo,
		void *	dstPixels,
		size_t	dstRowBytes,
		const SkImageInfo &	srcInfo,
		const void *	srcPixels,
		size_t	srcRowBytes
	)

Definition at line 259 of file SkConvertPixels.cpp.

                                                                                      {
    SkASSERT(dstInfo.dimensions() == srcInfo.dimensions());
    SkASSERT(SkImageInfoValidConversion(dstInfo, srcInfo));
 
    int srcStride = (int)(srcRB / srcInfo.bytesPerPixel());
    int dstStride = (int)(dstRB / dstInfo.bytesPerPixel());
    if ((size_t)srcStride * srcInfo.bytesPerPixel() != srcRB ||
        (size_t)dstStride * dstInfo.bytesPerPixel() != dstRB) {
        return false;
    }
 
    SkColorSpaceXformSteps steps{srcInfo.colorSpace(), srcInfo.alphaType(),
                                 dstInfo.colorSpace(), dstInfo.alphaType()};
 
    for (auto fn : {rect_memcpy, swizzle_or_premul, convert_to_alpha8}) {
        if (fn(dstInfo, dstPixels, dstRB, srcInfo, srcPixels, srcRB, steps)) {
            return true;
        }
    }
    convert_with_pipeline(dstInfo, dstPixels, dstStride, srcInfo, srcPixels, srcStride, steps);
    return true;
}