mirror of
https://bitbucket.org/chromiumembedded/cef
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83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/browser/backing_store_osr.h"
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#include "content/public/browser/render_process_host.h"
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#include "ui/gfx/rect.h"
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#include "ui/surface/transport_dib.h"
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BackingStoreOSR::BackingStoreOSR(content::RenderWidgetHost* widget,
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const gfx::Size& size)
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: content::BackingStore(widget, size),
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device_(SkBitmap::kARGB_8888_Config, size.width(), size.height(), true),
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canvas_(&device_) {
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canvas_.drawColor(SK_ColorWHITE);
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}
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void BackingStoreOSR::PaintToBackingStore(
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content::RenderProcessHost* process,
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TransportDIB::Id bitmap,
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const gfx::Rect& bitmap_rect,
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const std::vector<gfx::Rect>& copy_rects,
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float scale_factor,
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const base::Closure& completion_callback,
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bool* scheduled_completion_callback) {
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*scheduled_completion_callback = false;
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TransportDIB* dib = process->GetTransportDIB(bitmap);
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if (!dib)
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return;
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SkBitmap src_bitmap;
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src_bitmap.setConfig(SkBitmap::kARGB_8888_Config,
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bitmap_rect.width(),
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bitmap_rect.height());
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src_bitmap.setPixels(dib->memory());
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SkPaint copy_paint;
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copy_paint.setXfermodeMode(SkXfermode::kSrc_Mode);
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for (size_t i = 0; i < copy_rects.size(); i++) {
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SkIRect src_rect = SkIRect::MakeXYWH(copy_rects[i].x() - bitmap_rect.x(),
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copy_rects[i].y() - bitmap_rect.y(),
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copy_rects[i].width(),
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copy_rects[i].height());
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SkRect paint_rect = SkRect::MakeXYWH(copy_rects[i].x(),
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copy_rects[i].y(),
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copy_rects[i].width(),
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copy_rects[i].height());
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canvas_.drawBitmapRect(src_bitmap, &src_rect, paint_rect, ©_paint);
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}
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src_bitmap.setPixels(0);
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}
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bool BackingStoreOSR::CopyFromBackingStore(const gfx::Rect& rect,
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skia::PlatformBitmap* output) {
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if (!output->Allocate(rect.width(), rect.height(), true))
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return false;
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SkPaint copy_paint;
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copy_paint.setXfermodeMode(SkXfermode::kSrc_Mode);
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SkCanvas canvas(output->GetBitmap());
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canvas.drawColor(SK_ColorWHITE);
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canvas.drawBitmap(device_.accessBitmap(false), 0, 0, ©_paint);
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return true;
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}
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void BackingStoreOSR::ScrollBackingStore(const gfx::Vector2d& delta,
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const gfx::Rect& clip_rect,
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const gfx::Size& view_size) {
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SkIRect subset_rect = SkIRect::MakeXYWH(clip_rect.x(),
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clip_rect.y(),
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clip_rect.width(),
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clip_rect.height());
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device_.accessBitmap(true).scrollRect(&subset_rect, delta.x(), delta.y());
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}
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const void* BackingStoreOSR::getPixels() const {
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return const_cast<BackingStoreOSR*>(this)->device_.
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accessBitmap(false).getPixels();
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}
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