Make it more obvious when using an unaccelerated image buffer, and fix a few callers...
[WebKit-https.git] / Source / WebKit2 / Shared / CoordinatedGraphics / threadedcompositor / ThreadSafeCoordinatedSurface.cpp
1 /*
2  * Copyright (C) 2014 Igalia S.L.
3  *
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5  * modification, are permitted provided that the following conditions
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10  *    notice, this list of conditions and the following disclaimer in the
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24  */
25
26 #include "config.h"
27
28 #if USE(COORDINATED_GRAPHICS)
29 #include "ThreadSafeCoordinatedSurface.h"
30
31 #include <WebCore/TextureMapperGL.h>
32 #include <wtf/StdLibExtras.h>
33
34 using namespace WebCore;
35
36 namespace WebKit {
37
38 Ref<ThreadSafeCoordinatedSurface> ThreadSafeCoordinatedSurface::create(const IntSize& size, CoordinatedSurface::Flags flags)
39 {
40     // Making an unconditionally unaccelerated buffer here is OK because this code
41     // isn't used by any platforms that respect the accelerated bit.
42     return adoptRef(*new ThreadSafeCoordinatedSurface(size, flags, ImageBuffer::create(size, Unaccelerated)));
43 }
44
45 Ref<ThreadSafeCoordinatedSurface> ThreadSafeCoordinatedSurface::create(const IntSize& size, CoordinatedSurface::Flags flags, std::unique_ptr<ImageBuffer> buffer)
46 {
47     return adoptRef(*new ThreadSafeCoordinatedSurface(size, flags, WTF::move(buffer)));
48 }
49
50 ThreadSafeCoordinatedSurface::ThreadSafeCoordinatedSurface(const IntSize& size, CoordinatedSurface::Flags flags, std::unique_ptr<ImageBuffer> buffer)
51     : CoordinatedSurface(size, flags)
52     , m_imageBuffer(WTF::move(buffer))
53 {
54 }
55
56 ThreadSafeCoordinatedSurface::~ThreadSafeCoordinatedSurface()
57 {
58 }
59
60 void ThreadSafeCoordinatedSurface::paintToSurface(const IntRect& rect, CoordinatedSurface::Client* client)
61 {
62     ASSERT(client);
63
64     GraphicsContext& context = beginPaint(rect);
65     client->paintToSurfaceContext(context);
66     endPaint();
67 }
68
69 GraphicsContext& ThreadSafeCoordinatedSurface::beginPaint(const IntRect& rect)
70 {
71     ASSERT(m_imageBuffer);
72     GraphicsContext& graphicsContext = m_imageBuffer->context();
73     graphicsContext.save();
74     graphicsContext.clip(rect);
75     graphicsContext.translate(rect.x(), rect.y());
76     return graphicsContext;
77 }
78
79 void ThreadSafeCoordinatedSurface::endPaint()
80 {
81     ASSERT(m_imageBuffer);
82     m_imageBuffer->context().restore();
83 }
84
85 void ThreadSafeCoordinatedSurface::copyToTexture(PassRefPtr<BitmapTexture> passTexture, const IntRect& target, const IntPoint& sourceOffset)
86 {
87     RefPtr<BitmapTexture> texture(passTexture);
88
89     ASSERT(m_imageBuffer);
90     RefPtr<Image> image = m_imageBuffer->copyImage(DontCopyBackingStore);
91     texture->updateContents(image.get(), target, sourceOffset, BitmapTexture::UpdateCanModifyOriginalImageData);
92 }
93
94 } // namespace WebCore
95
96 #endif // USE(COORDINATED_GRAPHICS)