draw_gainmap_image.cc | Explore in Territory

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "skia/ext/draw_gainmap_image.h"

#include "base/check_op.h"
#include "base/logging.h"
#include "skia/ext/geometry.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkColorSpace.h"
#include "third_party/skia/include/core/SkShader.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "third_party/skia/include/gpu/GrRecordingContext.h"
#include "third_party/skia/include/gpu/ganesh/SkSurfaceGanesh.h"
#include "third_party/skia/include/gpu/graphite/Surface.h"
#include "third_party/skia/include/private/SkGainmapInfo.h"
#include "third_party/skia/include/private/SkGainmapShader.h"

namespace skia {

// Resample `gain_image` so that it has the same dimensions as `base_image`.
// Update `gain_rect` so that it has the same relationship to the new bounds
// of `gain_image` as it did to the old bounds. On failure, leave `gain_image`
// and `gain_rect` unchanged.
void ResampleGainmap(sk_sp<SkImage> base_image,
                     SkRect base_rect,
                     sk_sp<SkImage>& gain_image,
                     SkRect& gain_rect,
                     GrRecordingContext* context,
                     skgpu::graphite::Recorder* recorder) { … }

void DrawGainmapImageRect(SkCanvas* canvas,
                          sk_sp<SkImage> base_image,
                          sk_sp<SkImage> gain_image,
                          const SkGainmapInfo& gainmap_info,
                          float hdr_headroom,
                          const SkRect& source_rect,
                          const SkRect& dest_rect,
                          const SkSamplingOptions& sampling,
                          const SkPaint& paint) { … }

void DrawGainmapImage(SkCanvas* canvas,
                      sk_sp<SkImage> base_image,
                      sk_sp<SkImage> gainmap_image,
                      const SkGainmapInfo& gainmap_info,
                      float hdr_headroom,
                      SkScalar left,
                      SkScalar top,
                      const SkSamplingOptions& sampling,
                      const SkPaint& paint) { … }

}  // namespace skia
chromium/skia/ext/draw_gainmap_image.cc
