Index: chrome/browser/ui/libgtkui/skia_utils_gtk2.cc |
diff --git a/chrome/browser/ui/libgtkui/skia_utils_gtk2.cc b/chrome/browser/ui/libgtkui/skia_utils_gtk2.cc |
deleted file mode 100644 |
index d4e04754696b7ae3877246ddfea1f2ac0abc2b18..0000000000000000000000000000000000000000 |
--- a/chrome/browser/ui/libgtkui/skia_utils_gtk2.cc |
+++ /dev/null |
@@ -1,133 +0,0 @@ |
-// Copyright (c) 2012 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 "chrome/browser/ui/libgtkui/skia_utils_gtk2.h" |
- |
-#include <gdk/gdk.h> |
- |
-#include "base/logging.h" |
-#include "third_party/skia/include/core/SkBitmap.h" |
-#include "third_party/skia/include/core/SkUnPreMultiply.h" |
- |
-namespace libgtkui { |
- |
-// GDK_COLOR_RGB multiplies by 257 (= 0x10001) to distribute the bits evenly |
-// See: http://www.mindcontrol.org/~hplus/graphics/expand-bits.html |
-// To get back, we can just right shift by eight |
-// (or, formulated differently, i == (i*257)/256 for all i < 256). |
- |
-SkColor GdkColorToSkColor(GdkColor color) { |
- return SkColorSetRGB(color.red >> 8, color.green >> 8, color.blue >> 8); |
-} |
- |
-GdkColor SkColorToGdkColor(SkColor color) { |
- GdkColor gdk_color = { |
- 0, |
- static_cast<guint16>(SkColorGetR(color) * kSkiaToGDKMultiplier), |
- static_cast<guint16>(SkColorGetG(color) * kSkiaToGDKMultiplier), |
- static_cast<guint16>(SkColorGetB(color) * kSkiaToGDKMultiplier) |
- }; |
- return gdk_color; |
-} |
- |
-const SkBitmap GdkPixbufToImageSkia(GdkPixbuf* pixbuf) { |
- // TODO(erg): What do we do in the case where the pixbuf fails these dchecks? |
- // I would prefer to use our gtk based canvas, but that would require |
- // recompiling half of our skia extensions with gtk support, which we can't |
- // do in this build. |
- DCHECK_EQ(GDK_COLORSPACE_RGB, gdk_pixbuf_get_colorspace(pixbuf)); |
- |
- int n_channels = gdk_pixbuf_get_n_channels(pixbuf); |
- int w = gdk_pixbuf_get_width(pixbuf); |
- int h = gdk_pixbuf_get_height(pixbuf); |
- |
- SkBitmap ret; |
- ret.allocN32Pixels(w, h); |
- ret.eraseColor(0); |
- |
- uint32_t* skia_data = static_cast<uint32_t*>(ret.getAddr(0, 0)); |
- |
- if (n_channels == 4) { |
- int total_length = w * h; |
- guchar* gdk_pixels = gdk_pixbuf_get_pixels(pixbuf); |
- |
- // Now here's the trick: we need to convert the gdk data (which is RGBA and |
- // isn't premultiplied) to skia (which can be anything and premultiplied). |
- for (int i = 0; i < total_length; ++i, gdk_pixels += 4) { |
- const unsigned char& red = gdk_pixels[0]; |
- const unsigned char& green = gdk_pixels[1]; |
- const unsigned char& blue = gdk_pixels[2]; |
- const unsigned char& alpha = gdk_pixels[3]; |
- |
- skia_data[i] = SkPreMultiplyARGB(alpha, red, green, blue); |
- } |
- } else if (n_channels == 3) { |
- // Because GDK makes rowstrides word aligned, we need to do something a bit |
- // more complex when a pixel isn't perfectly a word of memory. |
- int rowstride = gdk_pixbuf_get_rowstride(pixbuf); |
- guchar* gdk_pixels = gdk_pixbuf_get_pixels(pixbuf); |
- for (int y = 0; y < h; ++y) { |
- int row = y * rowstride; |
- |
- for (int x = 0; x < w; ++x) { |
- guchar* pixel = gdk_pixels + row + (x * 3); |
- const unsigned char& red = pixel[0]; |
- const unsigned char& green = pixel[1]; |
- const unsigned char& blue = pixel[2]; |
- |
- skia_data[y * w + x] = SkPreMultiplyARGB(255, red, green, blue); |
- } |
- } |
- } else { |
- NOTREACHED(); |
- } |
- |
- return ret; |
-} |
- |
-GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap) { |
- if (bitmap.isNull()) |
- return NULL; |
- |
- SkAutoLockPixels lock_pixels(bitmap); |
- |
- int width = bitmap.width(); |
- int height = bitmap.height(); |
- |
- GdkPixbuf* pixbuf = |
- gdk_pixbuf_new(GDK_COLORSPACE_RGB, // The only colorspace gtk supports. |
- TRUE, // There is an alpha channel. |
- 8, |
- width, |
- height); |
- |
- // SkBitmaps are premultiplied, we need to unpremultiply them. |
- const int kBytesPerPixel = 4; |
- uint8_t* divided = gdk_pixbuf_get_pixels(pixbuf); |
- |
- for (int y = 0, i = 0; y < height; y++) { |
- for (int x = 0; x < width; x++) { |
- uint32_t pixel = bitmap.getAddr32(0, y)[x]; |
- |
- int alpha = SkColorGetA(pixel); |
- if (alpha != 0 && alpha != 255) { |
- SkColor unmultiplied = SkUnPreMultiply::PMColorToColor(pixel); |
- divided[i + 0] = SkColorGetR(unmultiplied); |
- divided[i + 1] = SkColorGetG(unmultiplied); |
- divided[i + 2] = SkColorGetB(unmultiplied); |
- divided[i + 3] = alpha; |
- } else { |
- divided[i + 0] = SkColorGetR(pixel); |
- divided[i + 1] = SkColorGetG(pixel); |
- divided[i + 2] = SkColorGetB(pixel); |
- divided[i + 3] = alpha; |
- } |
- i += kBytesPerPixel; |
- } |
- } |
- |
- return pixbuf; |
-} |
- |
-} // namespace libgtkui |