本文整理汇总了C++中nsIntRect类的典型用法代码示例。如果您正苦于以下问题:C++ nsIntRect类的具体用法?C++ nsIntRect怎么用?C++ nsIntRect使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了nsIntRect类的20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,您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: grect
void
LayerManagerComposite::WorldTransformRect(nsIntRect& aRect)
{
gfx::Rect grect(aRect.x, aRect.y, aRect.width, aRect.height);
grect = mWorldMatrix.TransformBounds(grect);
aRect.SetRect(grect.X(), grect.Y(), grect.Width(), grect.Height());
}
开发者ID:,项目名称:,代码行数:7,代码来源:
示例2: gfxContext
already_AddRefed<gfxContext>
ThebesLayerBuffer::GetContextForQuadrantUpdate(const nsIntRect& aBounds)
{
nsRefPtr<gfxContext> ctx = new gfxContext(mBuffer);
// Figure out which quadrant to draw in
PRInt32 xBoundary = mBufferRect.XMost() - mBufferRotation.x;
PRInt32 yBoundary = mBufferRect.YMost() - mBufferRotation.y;
XSide sideX = aBounds.XMost() <= xBoundary ? RIGHT : LEFT;
YSide sideY = aBounds.YMost() <= yBoundary ? BOTTOM : TOP;
nsIntRect quadrantRect = GetQuadrantRectangle(sideX, sideY);
NS_ASSERTION(quadrantRect.Contains(aBounds), "Messed up quadrants");
ctx->Translate(-gfxPoint(quadrantRect.x, quadrantRect.y));
return ctx.forget();
}
开发者ID:Akin-Net,项目名称:mozilla-central,代码行数:16,代码来源:ThebesLayerBuffer.cpp
示例3: CalculatePluginClip
static void CalculatePluginClip(const nsIntRect& aBounds,
const nsTArray<nsIntRect>& aPluginClipRects,
const nsIntPoint& aContentOffset,
const nsIntRegion& aParentLayerVisibleRegion,
nsTArray<nsIntRect>& aResult,
nsIntRect& aVisibleBounds,
bool& aPluginIsVisible)
{
aPluginIsVisible = true;
// aBounds (content origin)
nsIntRegion contentVisibleRegion(aBounds);
// aPluginClipRects (plugin widget origin)
for (uint32_t idx = 0; idx < aPluginClipRects.Length(); idx++) {
nsIntRect rect = aPluginClipRects[idx];
// shift to content origin
rect.MoveBy(aBounds.x, aBounds.y);
contentVisibleRegion.AndWith(rect);
}
// apply layers clip (window origin)
nsIntRegion region = aParentLayerVisibleRegion;
region.MoveBy(-aContentOffset.x, -aContentOffset.y);
contentVisibleRegion.AndWith(region);
if (contentVisibleRegion.IsEmpty()) {
aPluginIsVisible = false;
return;
}
// shift to plugin widget origin
contentVisibleRegion.MoveBy(-aBounds.x, -aBounds.y);
nsIntRegionRectIterator iter(contentVisibleRegion);
for (const nsIntRect* rgnRect = iter.Next(); rgnRect; rgnRect = iter.Next()) {
aResult.AppendElement(*rgnRect);
aVisibleBounds.UnionRect(aVisibleBounds, *rgnRect);
}
}
开发者ID:RobertJGabriel,项目名称:Waterfox,代码行数:34,代码来源:CompositorChild.cpp
示例4: UnionRect
// Computes the smallest rectangle that contains both aRect1 and aRect2 and
// fills 'this' with the result. Returns FALSE if both aRect1 and aRect2 are
// empty and TRUE otherwise
PRBool nsIntRect::UnionRect(const nsIntRect &aRect1, const nsIntRect &aRect2)
{
PRBool result = PR_TRUE;
// Is aRect1 empty?
if (aRect1.IsEmpty()) {
if (aRect2.IsEmpty()) {
// Both rectangles are empty which is an error
Empty();
result = PR_FALSE;
} else {
// aRect1 is empty so set the result to aRect2
*this = aRect2;
}
} else if (aRect2.IsEmpty()) {
// aRect2 is empty so set the result to aRect1
*this = aRect1;
} else {
PRInt32 xmost1 = aRect1.XMost();
PRInt32 xmost2 = aRect2.XMost();
PRInt32 ymost1 = aRect1.YMost();
PRInt32 ymost2 = aRect2.YMost();
// Compute the origin
x = PR_MIN(aRect1.x, aRect2.x);
y = PR_MIN(aRect1.y, aRect2.y);
// Compute the size
width = PR_MAX(xmost1, xmost2) - x;
height = PR_MAX(ymost1, ymost2) - y;
}
return result;
}
开发者ID:MozillaOnline,项目名称:gecko-dev,代码行数:37,代码来源:nsRect.cpp
示例5: Notify
/* static */ void
ProgressTracker::SyncNotifyInternal(ObserverArray& aObservers,
bool aHasImage,
Progress aProgress,
const nsIntRect& aDirtyRect)
{
MOZ_ASSERT(NS_IsMainThread());
typedef imgINotificationObserver I;
if (aProgress & FLAG_SIZE_AVAILABLE) {
NOTIFY_IMAGE_OBSERVERS(aObservers, Notify(I::SIZE_AVAILABLE));
}
if (aProgress & FLAG_ONLOAD_BLOCKED) {
NOTIFY_IMAGE_OBSERVERS(aObservers, BlockOnload());
}
if (aHasImage) {
// OnFrameUpdate
// If there's any content in this frame at all (always true for
// vector images, true for raster images that have decoded at
// least one frame) then send OnFrameUpdate.
if (!aDirtyRect.IsEmpty()) {
NOTIFY_IMAGE_OBSERVERS(aObservers, Notify(I::FRAME_UPDATE, &aDirtyRect));
}
if (aProgress & FLAG_FRAME_COMPLETE) {
NOTIFY_IMAGE_OBSERVERS(aObservers, Notify(I::FRAME_COMPLETE));
}
if (aProgress & FLAG_HAS_TRANSPARENCY) {
NOTIFY_IMAGE_OBSERVERS(aObservers, Notify(I::HAS_TRANSPARENCY));
}
if (aProgress & FLAG_IS_ANIMATED) {
NOTIFY_IMAGE_OBSERVERS(aObservers, Notify(I::IS_ANIMATED));
}
}
// Send UnblockOnload before OnStopDecode and OnStopRequest. This allows
// observers that can fire events when they receive those notifications to do
// so then, instead of being forced to wait for UnblockOnload.
if (aProgress & FLAG_ONLOAD_UNBLOCKED) {
NOTIFY_IMAGE_OBSERVERS(aObservers, UnblockOnload());
}
if (aProgress & FLAG_DECODE_COMPLETE) {
MOZ_ASSERT(aHasImage, "Stopped decoding without ever having an image?");
NOTIFY_IMAGE_OBSERVERS(aObservers, Notify(I::DECODE_COMPLETE));
}
if (aProgress & FLAG_LOAD_COMPLETE) {
NOTIFY_IMAGE_OBSERVERS(aObservers,
OnLoadComplete(aProgress & FLAG_LAST_PART_COMPLETE));
}
}
开发者ID:hobinjk,项目名称:gecko-dev,代码行数:57,代码来源:ProgressTracker.cpp
示例6:
void
nsSVGUtils::ConvertImageDataFromLinearRGB(PRUint8 *data,
PRInt32 stride,
const nsIntRect &rect)
{
for (PRInt32 y = rect.y; y < rect.YMost(); y++) {
for (PRInt32 x = rect.x; x < rect.XMost(); x++) {
PRUint8 *pixel = data + stride * y + 4 * x;
pixel[GFX_ARGB32_OFFSET_B] =
glinearRGBTosRGBMap[pixel[GFX_ARGB32_OFFSET_B]];
pixel[GFX_ARGB32_OFFSET_G] =
glinearRGBTosRGBMap[pixel[GFX_ARGB32_OFFSET_G]];
pixel[GFX_ARGB32_OFFSET_R] =
glinearRGBTosRGBMap[pixel[GFX_ARGB32_OFFSET_R]];
}
}
}
开发者ID:,项目名称:,代码行数:18,代码来源:
示例7: ClipTarget
// Clip aTarget's image to its filter primitive subregion.
// aModifiedRect contains all the pixels which might not be RGBA(0,0,0,0),
// it's relative to the surface data.
static void
ClipTarget(nsSVGFilterInstance* aInstance, const nsSVGFE::Image* aTarget,
const nsIntRect& aModifiedRect)
{
nsIntPoint surfaceTopLeft = aInstance->GetSurfaceRect().TopLeft();
NS_ASSERTION(aInstance->GetSurfaceRect().Contains(aModifiedRect + surfaceTopLeft),
"Modified data area overflows the surface?");
nsIntRect clip = aModifiedRect;
nsSVGUtils::ClipToGfxRect(&clip,
aTarget->mFilterPrimitiveSubregion - gfxPoint(surfaceTopLeft.x, surfaceTopLeft.y));
ClearRect(aTarget->mImage, aModifiedRect.x, aModifiedRect.y, aModifiedRect.XMost(), clip.y);
ClearRect(aTarget->mImage, aModifiedRect.x, clip.y, clip.x, clip.YMost());
ClearRect(aTarget->mImage, clip.XMost(), clip.y, aModifiedRect.XMost(), clip.YMost());
ClearRect(aTarget->mImage, aModifiedRect.x, clip.YMost(), aModifiedRect.XMost(), aModifiedRect.YMost());
}
开发者ID:Jaxo,项目名称:releases-mozilla-central,代码行数:21,代码来源:SVGFEGaussianBlurElement.cpp
示例8: OnStartRequest
/* static */ void
ProgressTracker::SyncNotifyInternal(ProxyArray& aProxies,
bool aHasImage,
Progress aProgress,
const nsIntRect& aDirtyRect)
{
MOZ_ASSERT(NS_IsMainThread());
// OnStartRequest
if (aProgress & FLAG_REQUEST_STARTED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartRequest());
// OnStartContainer
if (aProgress & FLAG_HAS_SIZE)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartContainer());
// OnStartDecode
if (aProgress & FLAG_DECODE_STARTED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartDecode());
// BlockOnload
if (aProgress & FLAG_ONLOAD_BLOCKED)
NOTIFY_IMAGE_OBSERVERS(aProxies, BlockOnload());
if (aHasImage) {
// OnFrameUpdate
// If there's any content in this frame at all (always true for
// vector images, true for raster images that have decoded at
// least one frame) then send OnFrameUpdate.
if (!aDirtyRect.IsEmpty())
NOTIFY_IMAGE_OBSERVERS(aProxies, OnFrameUpdate(&aDirtyRect));
if (aProgress & FLAG_FRAME_STOPPED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStopFrame());
// OnImageIsAnimated
if (aProgress & FLAG_IS_ANIMATED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnImageIsAnimated());
}
// Send UnblockOnload before OnStopDecode and OnStopRequest. This allows
// observers that can fire events when they receive those notifications to do
// so then, instead of being forced to wait for UnblockOnload.
if (aProgress & FLAG_ONLOAD_UNBLOCKED) {
NOTIFY_IMAGE_OBSERVERS(aProxies, UnblockOnload());
}
if (aProgress & FLAG_DECODE_STOPPED) {
MOZ_ASSERT(aHasImage, "Stopped decoding without ever having an image?");
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStopDecode());
}
if (aProgress & FLAG_REQUEST_STOPPED) {
NOTIFY_IMAGE_OBSERVERS(aProxies,
OnStopRequest(aProgress & FLAG_MULTIPART_STOPPED));
}
}
开发者ID:msliu,项目名称:gecko-dev,代码行数:56,代码来源:ProgressTracker.cpp
示例9: CopyDataRect
void
CopyDataRect(uint8_t *aDest, const uint8_t *aSrc, uint32_t aStride,
const nsIntRect& aDataRect)
{
for (int32_t y = aDataRect.y; y < aDataRect.YMost(); y++) {
memcpy(aDest + y * aStride + 4 * aDataRect.x,
aSrc + y * aStride + 4 * aDataRect.x,
4 * aDataRect.width);
}
}
开发者ID:TelefonicaPushServer,项目名称:mozilla-central,代码行数:10,代码来源:nsSVGFilters.cpp
示例10: nsRect
nsRect
nsFilterInstance::FilterSpaceToFrameSpace(const nsIntRect& aRect) const
{
if (aRect.IsEmpty()) {
return nsRect();
}
gfxRect r(aRect.x, aRect.y, aRect.width, aRect.height);
r = mFilterSpaceToFrameSpaceInCSSPxTransform.TransformBounds(r);
return nsLayoutUtils::RoundGfxRectToAppRect(r, mAppUnitsPerCSSPx);
}
开发者ID:abhishekvp,项目名称:gecko-dev,代码行数:10,代码来源:nsFilterInstance.cpp
示例11: MOZ_ASSERT
already_AddRefed<gfxContext>
RotatedContentBuffer::GetContextForQuadrantUpdate(const nsIntRect& aBounds,
ContextSource aSource,
nsIntPoint *aTopLeft)
{
if (!EnsureBuffer()) {
return nullptr;
}
nsRefPtr<gfxContext> ctx;
if (aSource == BUFFER_BOTH && HaveBufferOnWhite()) {
if (!EnsureBufferOnWhite()) {
return nullptr;
}
MOZ_ASSERT(mDTBuffer && mDTBufferOnWhite);
RefPtr<DrawTarget> dualDT = Factory::CreateDualDrawTarget(mDTBuffer, mDTBufferOnWhite);
ctx = new gfxContext(dualDT);
} else if (aSource == BUFFER_WHITE) {
if (!EnsureBufferOnWhite()) {
return nullptr;
}
ctx = new gfxContext(mDTBufferOnWhite);
} else {
// BUFFER_BLACK, or BUFFER_BOTH with a single buffer.
ctx = new gfxContext(mDTBuffer);
}
// Figure out which quadrant to draw in
int32_t xBoundary = mBufferRect.XMost() - mBufferRotation.x;
int32_t yBoundary = mBufferRect.YMost() - mBufferRotation.y;
XSide sideX = aBounds.XMost() <= xBoundary ? RIGHT : LEFT;
YSide sideY = aBounds.YMost() <= yBoundary ? BOTTOM : TOP;
nsIntRect quadrantRect = GetQuadrantRectangle(sideX, sideY);
NS_ASSERTION(quadrantRect.Contains(aBounds), "Messed up quadrants");
ctx->Translate(-gfxPoint(quadrantRect.x, quadrantRect.y));
if (aTopLeft) {
*aTopLeft = nsIntPoint(quadrantRect.x, quadrantRect.y);
}
return ctx.forget();
}
开发者ID:Gabuzo,项目名称:mozilla-central,代码行数:42,代码来源:RotatedBuffer.cpp
示例12: visibleRect
/* static */ bool
HwcUtils::PrepareLayerRects(nsIntRect aVisible,
const gfx::Matrix& aLayerTransform,
const gfx::Matrix& aLayerBufferTransform,
nsIntRect aClip, nsIntRect aBufferRect,
bool aYFlipped,
hwc_rect_t* aSourceCrop, hwc_rect_t* aVisibleRegionScreen) {
gfxMatrix aTransform = gfx::ThebesMatrix(aLayerTransform);
gfxRect visibleRect(aVisible);
gfxRect clip(aClip);
gfxRect visibleRectScreen = aTransform.TransformBounds(visibleRect);
// |clip| is guaranteed to be integer
visibleRectScreen.IntersectRect(visibleRectScreen, clip);
if (visibleRectScreen.IsEmpty()) {
return false;
}
gfxMatrix inverse = gfx::ThebesMatrix(aLayerBufferTransform);
inverse.Invert();
gfxRect crop = inverse.TransformBounds(visibleRectScreen);
//clip to buffer size
crop.IntersectRect(crop, aBufferRect);
crop.Round();
if (crop.IsEmpty()) {
return false;
}
//propagate buffer clipping back to visible rect
gfxMatrix layerBufferTransform = gfx::ThebesMatrix(aLayerBufferTransform);
visibleRectScreen = layerBufferTransform.TransformBounds(crop);
visibleRectScreen.Round();
// Map from layer space to buffer space
crop -= aBufferRect.TopLeft();
if (aYFlipped) {
crop.y = aBufferRect.height - (crop.y + crop.height);
}
aSourceCrop->left = crop.x;
aSourceCrop->top = crop.y;
aSourceCrop->right = crop.x + crop.width;
aSourceCrop->bottom = crop.y + crop.height;
aVisibleRegionScreen->left = visibleRectScreen.x;
aVisibleRegionScreen->top = visibleRectScreen.y;
aVisibleRegionScreen->right = visibleRectScreen.x + visibleRectScreen.width;
aVisibleRegionScreen->bottom = visibleRectScreen.y + visibleRectScreen.height;
return true;
}
开发者ID:Jar-win,项目名称:Waterfox,代码行数:54,代码来源:HwcUtils.cpp
示例13: jniFrame
void
AndroidGeckoLayerClient::SetFirstPaintViewport(const nsIntPoint& aOffset, float aZoom, const nsIntRect& aPageRect, const gfx::Rect& aCssPageRect)
{
NS_ASSERTION(!isNull(), "SetFirstPaintViewport called on null layer client!");
JNIEnv *env = GetJNIForThread(); // this is called on the compositor thread
if (!env)
return;
AutoLocalJNIFrame jniFrame(env, 0);
return env->CallVoidMethod(wrapped_obj, jSetFirstPaintViewport, (float)aOffset.x, (float)aOffset.y, aZoom,
(float)aPageRect.x, (float)aPageRect.y, (float)aPageRect.XMost(), (float)aPageRect.YMost(),
aCssPageRect.x, aCssPageRect.y, aCssPageRect.XMost(), aCssPageRect.YMost());
}
开发者ID:lofter2011,项目名称:Icefox,代码行数:13,代码来源:AndroidJavaWrappers.cpp
示例14: ComputeLinearRGBLuminanceMask
static void
ComputeLinearRGBLuminanceMask(uint8_t *aData,
int32_t aStride,
const nsIntRect &aRect,
float aOpacity)
{
for (int32_t y = aRect.y; y < aRect.YMost(); y++) {
for (int32_t x = aRect.x; x < aRect.XMost(); x++) {
uint8_t *pixel = aData + aStride * y + 4 * x;
uint8_t a = pixel[GFX_ARGB32_OFFSET_A];
uint8_t luminance;
// unpremultiply
if (a) {
if (a != 255) {
pixel[GFX_ARGB32_OFFSET_B] =
(255 * pixel[GFX_ARGB32_OFFSET_B]) / a;
pixel[GFX_ARGB32_OFFSET_G] =
(255 * pixel[GFX_ARGB32_OFFSET_G]) / a;
pixel[GFX_ARGB32_OFFSET_R] =
(255 * pixel[GFX_ARGB32_OFFSET_R]) / a;
}
/* sRGB -> linearRGB -> intensity */
luminance =
static_cast<uint8_t>
((gsRGBToLinearRGBMap[pixel[GFX_ARGB32_OFFSET_R]] *
0.2125 +
gsRGBToLinearRGBMap[pixel[GFX_ARGB32_OFFSET_G]] *
0.7154 +
gsRGBToLinearRGBMap[pixel[GFX_ARGB32_OFFSET_B]] *
0.0721) * (a / 255.0) * aOpacity);
} else {
luminance = 0;
}
memset(pixel, luminance, 4);
}
}
}
开发者ID:,项目名称:,代码行数:39,代码来源:
示例15: while
/* static */
void
WinUtils::InvalidatePluginAsWorkaround(nsIWidget *aWidget, const nsIntRect &aRect)
{
aWidget->Invalidate(aRect);
// XXX - Even more evil workaround!! See bug 762948, flash's bottom
// level sandboxed window doesn't seem to get our invalidate. We send
// an invalidate to it manually. This is totally specialized for this
// bug, for other child window structures this will just be a more or
// less bogus invalidate but since that should not have any bad
// side-effects this will have to do for now.
HWND current = (HWND)aWidget->GetNativeData(NS_NATIVE_WINDOW);
RECT windowRect;
RECT parentRect;
::GetWindowRect(current, &parentRect);
HWND next = current;
do {
current = next;
::EnumChildWindows(current, &EnumFirstChild, (LPARAM)&next);
::GetWindowRect(next, &windowRect);
// This is relative to the screen, adjust it to be relative to the
// window we're reconfiguring.
windowRect.left -= parentRect.left;
windowRect.top -= parentRect.top;
} while (next != current && windowRect.top == 0 && windowRect.left == 0);
if (windowRect.top == 0 && windowRect.left == 0) {
RECT rect;
rect.left = aRect.x;
rect.top = aRect.y;
rect.right = aRect.XMost();
rect.bottom = aRect.YMost();
::InvalidateRect(next, &rect, FALSE);
}
}
开发者ID:dadaa,项目名称:gecko-dev,代码行数:40,代码来源:WinUtils.cpp
示例16: Draw
bool imgFrame::Draw(gfxContext *aContext, GraphicsFilter aFilter,
const gfxMatrix &aUserSpaceToImageSpace, const gfxRect& aFill,
const nsIntMargin &aPadding, const nsIntRect &aSubimage,
uint32_t aImageFlags)
{
PROFILER_LABEL("image", "imgFrame::Draw");
NS_ASSERTION(!aFill.IsEmpty(), "zero dest size --- fix caller");
NS_ASSERTION(!aSubimage.IsEmpty(), "zero source size --- fix caller");
NS_ASSERTION(!mPalettedImageData, "Directly drawing a paletted image!");
bool doPadding = aPadding != nsIntMargin(0,0,0,0);
bool doPartialDecode = !ImageComplete();
if (mSinglePixel && !doPadding && !doPartialDecode) {
DoSingleColorFastPath(aContext, mSinglePixelColor, aFill);
return true;
}
gfxMatrix userSpaceToImageSpace = aUserSpaceToImageSpace;
gfxRect sourceRect = userSpaceToImageSpace.TransformBounds(aFill);
gfxRect imageRect(0, 0, mSize.width + aPadding.LeftRight(),
mSize.height + aPadding.TopBottom());
gfxRect subimage(aSubimage.x, aSubimage.y, aSubimage.width, aSubimage.height);
gfxRect fill = aFill;
NS_ASSERTION(!sourceRect.Intersect(subimage).IsEmpty(),
"We must be allowed to sample *some* source pixels!");
nsRefPtr<gfxASurface> surf;
if (!mSinglePixel) {
surf = ThebesSurface();
if (!surf)
return false;
}
bool doTile = !imageRect.Contains(sourceRect) &&
!(aImageFlags & imgIContainer::FLAG_CLAMP);
SurfaceWithFormat surfaceResult =
SurfaceForDrawing(doPadding, doPartialDecode, doTile, aPadding,
userSpaceToImageSpace, fill, subimage, sourceRect,
imageRect, surf);
if (surfaceResult.IsValid()) {
gfxUtils::DrawPixelSnapped(aContext, surfaceResult.mDrawable,
userSpaceToImageSpace,
subimage, sourceRect, imageRect, fill,
surfaceResult.mFormat, aFilter, aImageFlags);
}
return true;
}
开发者ID:PatMart,项目名称:gecko-dev,代码行数:50,代码来源:imgFrame.cpp
示例17: PrepareLayerRects
/**
* Sets hwc layer rectangles required for hwc composition
*
* @param aVisible Input. Layer's unclipped visible rectangle
* The origin is the top-left corner of the layer
* @param aTransform Input. Layer's transformation matrix
* It transforms from layer space to screen space
* @param aClip Input. A clipping rectangle.
* The origin is the top-left corner of the screen
* @param aBufferRect Input. The layer's buffer bounds
* The origin is the top-left corner of the layer
* @param aSurceCrop Output. Area of the source to consider,
* the origin is the top-left corner of the buffer
* @param aVisibleRegionScreen Output. Visible region in screen space.
* The origin is the top-left corner of the screen
* @return true if the layer should be rendered.
* false if the layer can be skipped
*/
static bool
PrepareLayerRects(nsIntRect aVisible, const gfxMatrix& aTransform,
nsIntRect aClip, nsIntRect aBufferRect,
hwc_rect_t* aSourceCrop, hwc_rect_t* aVisibleRegionScreen) {
gfxRect visibleRect(aVisible);
gfxRect clip(aClip);
gfxRect visibleRectScreen = aTransform.TransformBounds(visibleRect);
// |clip| is guaranteed to be integer
visibleRectScreen.IntersectRect(visibleRectScreen, clip);
if (visibleRectScreen.IsEmpty()) {
LOGD("Skip layer");
return false;
}
gfxMatrix inverse(aTransform);
inverse.Invert();
gfxRect crop = inverse.TransformBounds(visibleRectScreen);
//clip to buffer size
crop.IntersectRect(crop, aBufferRect);
crop.RoundOut();
if (crop.IsEmpty()) {
LOGD("Skip layer");
return false;
}
//propagate buffer clipping back to visible rect
visibleRectScreen = aTransform.TransformBounds(crop);
visibleRectScreen.RoundOut();
// Map from layer space to buffer space
crop -= aBufferRect.TopLeft();
aSourceCrop->left = crop.x;
aSourceCrop->top = crop.y;
aSourceCrop->right = crop.x + crop.width;
aSourceCrop->bottom = crop.y + crop.height;
aVisibleRegionScreen->left = visibleRectScreen.x;
aVisibleRegionScreen->top = visibleRectScreen.y;
aVisibleRegionScreen->right = visibleRectScreen.x + visibleRectScreen.width;
aVisibleRegionScreen->bottom = visibleRectScreen.y + visibleRectScreen.height;
return true;
}
开发者ID:multi-sim,项目名称:releases-mozilla-central,代码行数:66,代码来源:HwcComposer2D.cpp
示例18: GetOffsetToUserSpace
nsIntRect
nsSVGIntegrationUtils::AdjustInvalidAreaForSVGEffects(nsIFrame* aFrame,
const nsPoint& aToReferenceFrame,
const nsIntRect& aInvalidRect)
{
// Don't bother calling GetEffectProperties; the filter property should
// already have been set up during reflow/ComputeFrameEffectsRect
nsIFrame* firstFrame =
nsLayoutUtils::GetFirstContinuationOrSpecialSibling(aFrame);
nsSVGEffects::EffectProperties effectProperties =
nsSVGEffects::GetEffectProperties(firstFrame);
if (!effectProperties.mFilter)
return aInvalidRect;
nsSVGFilterProperty *prop = nsSVGEffects::GetFilterProperty(firstFrame);
if (!prop || !prop->IsInObserverList()) {
return aInvalidRect;
}
int32_t appUnitsPerDevPixel = aFrame->PresContext()->AppUnitsPerDevPixel();
nsSVGFilterFrame* filterFrame = prop->GetFilterFrame();
if (!filterFrame) {
// The frame is either not there or not currently available,
// perhaps because we're in the middle of tearing stuff down.
// Be conservative, return our visual overflow rect relative
// to the reference frame.
nsRect overflow = aFrame->GetVisualOverflowRect() + aToReferenceFrame;
return overflow.ToOutsidePixels(appUnitsPerDevPixel);
}
// Convert aInvalidRect into "user space" in app units:
nsPoint toUserSpace =
aFrame->GetOffsetTo(firstFrame) + GetOffsetToUserSpace(firstFrame);
// The initial rect was relative to the reference frame, so we need to
// remove that offset to get a rect relative to the current frame.
toUserSpace -= aToReferenceFrame;
nsRect preEffectsRect = aInvalidRect.ToAppUnits(appUnitsPerDevPixel) + toUserSpace;
// Adjust the dirty area for effects, and shift it back to being relative to
// the reference frame.
nsRect result = filterFrame->GetPostFilterDirtyArea(firstFrame, preEffectsRect) -
toUserSpace;
// Return the result, in pixels relative to the reference frame.
return result.ToOutsidePixels(appUnitsPerDevPixel);
}
开发者ID:jraff,项目名称:mozilla-central,代码行数:46,代码来源:nsSVGIntegrationUtils.cpp
示例19: TransformRect
static nsIntRect
TransformRect(const nsIntRect& aRect, const gfx3DMatrix& aTransform)
{
if (aRect.IsEmpty()) {
return nsIntRect();
}
gfxRect rect(aRect.x, aRect.y, aRect.width, aRect.height);
rect = aTransform.TransformBounds(rect);
rect.RoundOut();
nsIntRect intRect;
if (!gfxUtils::GfxRectToIntRect(rect, &intRect)) {
return nsIntRect();
}
return intRect;
}
开发者ID:svic,项目名称:mozilla-central,代码行数:18,代码来源:LayerTreeInvalidation.cpp
示例20: memset
//******************************************************************************
void
FrameAnimator::ClearFrame(uint8_t* aFrameData, const nsIntRect& aFrameRect,
const nsIntRect& aRectToClear)
{
if (!aFrameData || aFrameRect.width <= 0 || aFrameRect.height <= 0 ||
aRectToClear.width <= 0 || aRectToClear.height <= 0) {
return;
}
nsIntRect toClear = aFrameRect.Intersect(aRectToClear);
if (toClear.IsEmpty()) {
return;
}
uint32_t bytesPerRow = aFrameRect.width * 4;
for (int row = toClear.y; row < toClear.y + toClear.height; ++row) {
memset(aFrameData + toClear.x * 4 + row * bytesPerRow, 0,
toClear.width * 4);
}
}
开发者ID:cclauss,项目名称:gecko-dev,代码行数:21,代码来源:FrameAnimator.cpp
注:本文中的nsIntRect类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,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。 |
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