skia2/include/ports/SkImageGeneratorNDK.h
Leon Scroggins III 326b98981e Add platform image encoder for using NDK APIs
Bug: skia:10369

Add SkEncodeImageWithNDK, mirroring the CG and WIC versions, for
encoding with the NDK APIs added to R.

Rename SK_ENABLE_NDK_DECODING to SK_ENABLE_NDK_IMAGES and use it for
both encoding and decoding.

Move code for converting to/from NDK types into a common location.

Update encode_platform.cpp to use NDK encoding APIs when available and
to use both types of webp (lossy and lossless). Add tests specifically
for the new implementation.

Update NdkDecodeTest to use ToolUtils::equal_pixels for comparing
pixels.

Change-Id: Ic62f89af27372ccce90b8e028e01c388a135a68c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/308800
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
2020-08-13 15:21:41 +00:00

41 lines
1.3 KiB
C++

/*
* Copyright 2020 Google LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkImageGeneratorNDK_DEFINED
#define SkImageGeneratorNDK_DEFINED
#include "include/core/SkTypes.h"
#ifdef SK_ENABLE_NDK_IMAGES
#include "include/core/SkData.h"
#include "include/core/SkImageGenerator.h"
#include <memory>
namespace SkImageGeneratorNDK {
/**
* Create a generator that uses the Android NDK's APIs for decoding images.
*
* Only supported on devices where __ANDROID_API__ >= 30.
*
* As with SkCodec, the SkColorSpace passed to getPixels() determines the
* type of color space transformations to apply. A null SkColorSpace means to
* apply none.
*
* A note on scaling: Calling getPixels() on the resulting SkImageGenerator
* with dimensions that do not match getInfo() requests a scale. For WebP
* files, dimensions smaller than those of getInfo are supported. For Jpeg
* files, dimensions of 1/2, 1/4, and 1/8 are supported. TODO: Provide an
* API like SkCodecImageGenerator::getScaledDimensions() to report which
* dimensions are supported?
*/
SK_API std::unique_ptr<SkImageGenerator> MakeFromEncodedNDK(sk_sp<SkData>);
}
#endif // SK_ENABLE_NDK_IMAGES
#endif // SkImageGeneratorNDK_DEFINED