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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gfx/skia_util.h"
#include "gfx/rect.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkColorPriv.h"
#include "third_party/skia/include/core/SkShader.h"
#include "third_party/skia/include/effects/SkGradientShader.h"
namespace gfx {
SkRect RectToSkRect(const gfx::Rect& rect) {
SkRect r;
r.set(SkIntToScalar(rect.x()), SkIntToScalar(rect.y()),
SkIntToScalar(rect.right()), SkIntToScalar(rect.bottom()));
return r;
}
gfx::Rect SkRectToRect(const SkRect& rect) {
return gfx::Rect(SkScalarToFixed(rect.fLeft),
SkScalarToFixed(rect.fTop),
SkScalarToFixed(rect.width()),
SkScalarToFixed(rect.height()));
}
SkShader* CreateGradientShader(int start_point,
int end_point,
SkColor start_color,
SkColor end_color) {
SkColor grad_colors[2] = { start_color, end_color};
SkPoint grad_points[2];
grad_points[0].set(SkIntToScalar(0), SkIntToScalar(start_point));
grad_points[1].set(SkIntToScalar(0), SkIntToScalar(end_point));
return SkGradientShader::CreateLinear(
grad_points, grad_colors, NULL, 2, SkShader::kRepeat_TileMode);
}
bool BitmapsAreEqual(const SkBitmap& bitmap1, const SkBitmap& bitmap2) {
void* addr1 = NULL;
void* addr2 = NULL;
size_t size1 = 0;
size_t size2 = 0;
bitmap1.lockPixels();
addr1 = bitmap1.getAddr32(0, 0);
size1 = bitmap1.getSize();
bitmap1.unlockPixels();
bitmap2.lockPixels();
addr2 = bitmap2.getAddr32(0, 0);
size2 = bitmap2.getSize();
bitmap2.unlockPixels();
return (size1 == size2) && (0 == memcmp(addr1, addr2, bitmap1.getSize()));
}
} // namespace gfx
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