| Index: base/gfx/blit.cc
|
| ===================================================================
|
| --- base/gfx/blit.cc (revision 28001)
|
| +++ base/gfx/blit.cc (working copy)
|
| @@ -1,101 +0,0 @@
|
| -// 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>
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| - 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.
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| - cairo_save(dst_context);
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| - 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,
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| - skia::PlatformCanvas *src_canvas,
|
| - const Point& src_origin) {
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| - BlitContextToContext(dst_context, dst_rect,
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| - GetContextFromCanvas(src_canvas), src_origin);
|
| -}
|
| -
|
| -void BlitCanvasToCanvas(skia::PlatformCanvas *dst_canvas,
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| - const Rect& dst_rect,
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| - skia::PlatformCanvas *src_canvas,
|
| - const Point& src_origin) {
|
| - BlitContextToContext(GetContextFromCanvas(dst_canvas), dst_rect,
|
| - GetContextFromCanvas(src_canvas), src_origin);
|
| -}
|
| -
|
| -} // namespace gfx
|
|
|