Move classes depending on Skia out of base/gfx and into app/gfx. Rename...

base/gfx/blit.cc

-// Copyright (c) 2009 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 "base/gfx/blit.h"
-
-#if defined(OS_LINUX)
-#include <cairo/cairo.h>
-#endif
-
-#include "base/gfx/point.h"
-#include "base/gfx/rect.h"
-#if defined(OS_MACOSX)
-#include "base/scoped_cftyperef.h"
-#endif
-#include "skia/ext/platform_canvas.h"
-#include "skia/ext/platform_device.h"
-
-namespace gfx {
-
-void BlitContextToContext(NativeDrawingContext dst_context,
-                          const Rect& dst_rect,
-                          NativeDrawingContext src_context,
-                          const Point& src_origin) {
-#if defined(OS_WIN)
-  BitBlt(dst_context, dst_rect.x(), dst_rect.y(),
-         dst_rect.width(), dst_rect.height(),
-         src_context, src_origin.x(), src_origin.y(), SRCCOPY);
-#elif defined(OS_MACOSX)
-  // Only translations and/or vertical flips in the source context are
-  // supported; more complex source context transforms will be ignored.
-
-  // If there is a translation on the source context, we need to account for
-  // it ourselves since CGBitmapContextCreateImage will bypass it.
-  Rect src_rect(src_origin, dst_rect.size());
-  CGAffineTransform transform = CGContextGetCTM(src_context);
-  bool flipped = fabs(transform.d + 1) < 0.0001;
-  CGFloat delta_y = flipped ? CGBitmapContextGetHeight(src_context) -
-                              transform.ty
-                            : transform.ty;
-  src_rect.Offset(transform.tx, delta_y);
-
-  scoped_cftyperef<CGImageRef>
-      src_image(CGBitmapContextCreateImage(src_context));
-  scoped_cftyperef<CGImageRef> src_sub_image(
-      CGImageCreateWithImageInRect(src_image, src_rect.ToCGRect()));
-  CGContextDrawImage(dst_context, dst_rect.ToCGRect(), src_sub_image);
-#elif defined(OS_LINUX)
-  // Only translations in the source context are supported; more complex
-  // source context transforms will be ignored.
-  cairo_save(dst_context);
-  double surface_x = src_origin.x();
-  double surface_y = src_origin.y();
-  cairo_user_to_device(src_context, &surface_x, &surface_y);
-  cairo_set_source_surface(dst_context, cairo_get_target(src_context),
-                           dst_rect.x()-surface_x, dst_rect.y()-surface_y);
-  cairo_rectangle(dst_context, dst_rect.x(), dst_rect.y(),
-                  dst_rect.width(), dst_rect.height());
-  cairo_clip(dst_context);
-  cairo_paint(dst_context);
-  cairo_restore(dst_context);
-#endif
-}
-
-static NativeDrawingContext GetContextFromCanvas(
-    skia::PlatformCanvas *canvas) {
-  skia::PlatformDevice& device = canvas->getTopPlatformDevice();
-#if defined(OS_WIN)
-  return device.getBitmapDC();
-#elif defined(OS_MACOSX)
-  return device.GetBitmapContext();
-#elif defined(OS_LINUX)
-  return device.beginPlatformPaint();
-#endif
-}
-
-void BlitContextToCanvas(skia::PlatformCanvas *dst_canvas,
-                         const Rect& dst_rect,
-                         NativeDrawingContext src_context,
-                         const Point& src_origin) {
-  BlitContextToContext(GetContextFromCanvas(dst_canvas), dst_rect,
-                       src_context, src_origin);
-}
-
-void BlitCanvasToContext(NativeDrawingContext dst_context,
-                         const Rect& dst_rect,
-                         skia::PlatformCanvas *src_canvas,
-                         const Point& src_origin) {
-  BlitContextToContext(dst_context, dst_rect,
-                       GetContextFromCanvas(src_canvas), src_origin);
-}
-
-void BlitCanvasToCanvas(skia::PlatformCanvas *dst_canvas,
-                        const Rect& dst_rect,
-                        skia::PlatformCanvas *src_canvas,
-                        const Point& src_origin) {
-  BlitContextToContext(GetContextFromCanvas(dst_canvas), dst_rect,
-                       GetContextFromCanvas(src_canvas), src_origin);
-}
-
-}  // namespace gfx