chromium/third_party/skia/src/shaders/SkPictureShader.cpp

/*
 * Copyright 2014 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/shaders/SkPictureShader.h"

#include "include/core/SkAlphaType.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkColorType.h"
#include "include/core/SkImage.h"
#include "include/core/SkPoint.h"
#include "include/core/SkSamplingOptions.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTileMode.h"
#include "include/private/base/SkDebug.h"
#include "include/private/base/SkFloatingPoint.h"
#include "src/base/SkArenaAlloc.h"
#include "src/core/SkEffectPriv.h"
#include "src/core/SkImageInfoPriv.h"
#include "src/core/SkMatrixPriv.h"
#include "src/core/SkPicturePriv.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkResourceCache.h"
#include "src/core/SkWriteBuffer.h"
#include "src/shaders/SkLocalMatrixShader.h"

#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <utility>
class SkDiscardableMemory;

sk_sp<SkShader> SkPicture::makeShader(SkTileMode tmx, SkTileMode tmy, SkFilterMode filter,
                                      const SkMatrix* localMatrix, const SkRect* tile) const { … }

namespace {
static unsigned gImageFromPictureKeyNamespaceLabel;

struct ImageFromPictureKey : public SkResourceCache::Key { … };

struct ImageFromPictureRec : public SkResourceCache::Rec { … };

} // namespace

SkPictureShader::SkPictureShader(sk_sp<SkPicture> picture,
                                 SkTileMode tmx,
                                 SkTileMode tmy,
                                 SkFilterMode filter,
                                 const SkRect* tile)
        : … { … }

sk_sp<SkShader> SkPictureShader::Make(sk_sp<SkPicture> picture, SkTileMode tmx, SkTileMode tmy,
                                      SkFilterMode filter, const SkMatrix* lm, const SkRect* tile) { … }

sk_sp<SkFlattenable> SkPictureShader::CreateProc(SkReadBuffer& buffer) { … }

void SkPictureShader::flatten(SkWriteBuffer& buffer) const { … }

static sk_sp<SkColorSpace> ref_or_srgb(SkColorSpace* cs) { … }

SkPictureShader::CachedImageInfo SkPictureShader::CachedImageInfo::Make(
        const SkRect& bounds,
        const SkMatrix& totalM,
        SkColorType dstColorType,
        SkColorSpace* dstColorSpace,
        const int maxTextureSize,
        const SkSurfaceProps& propsIn) { … }

sk_sp<SkImage> SkPictureShader::CachedImageInfo::makeImage(sk_sp<SkSurface> surf,
                                                           const SkPicture* pict) const { … }

// Returns a cached image shader, which wraps a single picture tile at the given
// CTM/local matrix.  Also adjusts the local matrix for tile scaling.
sk_sp<SkShader> SkPictureShader::rasterShader(const SkMatrix& totalM,
                                              SkColorType dstColorType,
                                              SkColorSpace* dstColorSpace,
                                              const SkSurfaceProps& propsIn) const { … }

bool SkPictureShader::appendStages(const SkStageRec& rec, const SkShaders::MatrixRec& mRec) const { … }

/////////////////////////////////////////////////////////////////////////////////////////

#ifdef SK_ENABLE_LEGACY_SHADERCONTEXT
SkShaderBase::Context* SkPictureShader::onMakeContext(const ContextRec& rec,
                                                      SkArenaAlloc* alloc) const { … }
#endif