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Diffstat (limited to 'base/gfx/blit.cc')
| -rw-r--r-- | base/gfx/blit.cc | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/base/gfx/blit.cc b/base/gfx/blit.cc deleted file mode 100644 index 4b94255..0000000 --- a/base/gfx/blit.cc +++ /dev/null @@ -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> - 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 |