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C++ UpdatableTile::dirty方法代码示例

本文整理汇总了C++中UpdatableTile::dirty方法的典型用法代码示例。如果您正苦于以下问题:C++ UpdatableTile::dirty方法的具体用法?C++ UpdatableTile::dirty怎么用?C++ UpdatableTile::dirty使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在UpdatableTile的用法示例。


在下文中一共展示了UpdatableTile::dirty方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: updateCompositorResources

void TiledLayerChromium::updateCompositorResources(GraphicsContext3D* context)
{
    // Painting could cause compositing to get turned off, which may cause the tiler to become invalidated mid-update.
    if (m_skipsDraw || m_updateRect.isEmpty() || !m_tiler->numTiles())
        return;

    int left, top, right, bottom;
    m_tiler->contentRectToTileIndices(m_updateRect, left, top, right, bottom);
    for (int j = top; j <= bottom; ++j) {
        for (int i = left; i <= right; ++i) {
            UpdatableTile* tile = tileAt(i, j);
            if (!tile)
                tile = createTile(i, j);
            else if (!tile->dirty())
                continue;

            // Calculate page-space rectangle to copy from.
            IntRect sourceRect = m_tiler->tileContentRect(tile);
            const IntPoint anchor = sourceRect.location();
            sourceRect.intersect(m_tiler->layerRectToContentRect(tile->m_dirtyLayerRect));
            // Paint rect not guaranteed to line up on tile boundaries, so
            // make sure that sourceRect doesn't extend outside of it.
            sourceRect.intersect(m_paintRect);
            if (sourceRect.isEmpty())
                continue;

            ASSERT(tile->texture()->isReserved());

            // Calculate tile-space rectangle to upload into.
            IntRect destRect(IntPoint(sourceRect.x() - anchor.x(), sourceRect.y() - anchor.y()), sourceRect.size());
            if (destRect.x() < 0)
                CRASH();
            if (destRect.y() < 0)
                CRASH();

            // Offset from paint rectangle to this tile's dirty rectangle.
            IntPoint paintOffset(sourceRect.x() - m_paintRect.x(), sourceRect.y() - m_paintRect.y());
            if (paintOffset.x() < 0)
                CRASH();
            if (paintOffset.y() < 0)
                CRASH();
            if (paintOffset.x() + destRect.width() > m_paintRect.width())
                CRASH();
            if (paintOffset.y() + destRect.height() > m_paintRect.height())
                CRASH();

            tile->texture()->bindTexture(context);
            const GC3Dint filter = m_tiler->hasBorderTexels() ? GraphicsContext3D::LINEAR : GraphicsContext3D::NEAREST;
            GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, filter));
            GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MAG_FILTER, filter));
            GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, 0));

            textureUpdater()->updateTextureRect(context, tile->texture(), sourceRect, destRect);
            tile->clearDirty();
        }
    }
}
开发者ID:Xertz,项目名称:EAWebKit,代码行数:57,代码来源:TiledLayerChromium.cpp


注:本文中的UpdatableTile::dirty方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。