本文整理汇总了C++中nsIntRegion::RectIter方法的典型用法代码示例。如果您正苦于以下问题：C++ nsIntRegion::RectIter方法的具体用法？C++ nsIntRegion::RectIter怎么用？C++ nsIntRegion::RectIter使用的例子？那么恭喜您, 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类nsIntRegion的用法示例。
在下文中一共展示了nsIntRegion::RectIter方法的5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: FilterSpaceToFrameSpace
nsRegion
nsFilterInstance::FilterSpaceToFrameSpace(const nsIntRegion& aRegion) const
{
nsRegion result;
for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
// FilterSpaceToFrameSpace rounds out, so this works.
result.Or(result, FilterSpaceToFrameSpace(iter.Get()));
}
return result;
}示例2: AppendToString
void
AppendToString(std::stringstream& aStream, const nsIntRegion& r,
const char* pfx, const char* sfx)
{
aStream << pfx;
aStream << "< ";
for (auto iter = r.RectIter(); !iter.Done(); iter.Next()) {
AppendToString(aStream, iter.Get());
aStream << "; ";
}
aStream << ">";
aStream << sfx;
}示例3: ThebesRect
/* static */ bool
HwcUtils::PrepareVisibleRegion(const nsIntRegion& aVisible,
const gfx::Matrix& aLayerTransform,
const gfx::Matrix& aLayerBufferTransform,
nsIntRect aClip, nsIntRect aBufferRect,
RectVector* aVisibleRegionScreen,
bool& aIsVisible) {
const float MIN_SRC_WIDTH = 2.f;
const float MIN_SRC_HEIGHT = 2.f;
gfxMatrix layerTransform = gfx::ThebesMatrix(aLayerTransform);
gfxMatrix layerBufferTransform = gfx::ThebesMatrix(aLayerBufferTransform);
gfxRect bufferRect =
layerBufferTransform.TransformBounds(ThebesRect(aBufferRect));
gfxMatrix inverse = gfx::ThebesMatrix(aLayerBufferTransform);
inverse.Invert();
aIsVisible = false;
for (auto iter = aVisible.RectIter(); !iter.Done(); iter.Next()) {
gfxRect screenRect =
layerTransform.TransformBounds(ThebesRect(iter.Get()));
screenRect.IntersectRect(screenRect, bufferRect);
screenRect.IntersectRect(screenRect, ThebesRect(aClip));
screenRect.Round();
if (screenRect.IsEmpty()) {
continue;
}
hwc_rect_t visibleRectScreen;
visibleRectScreen.left = screenRect.x;
visibleRectScreen.top = screenRect.y;
visibleRectScreen.right = screenRect.XMost();
visibleRectScreen.bottom = screenRect.YMost();
gfxRect srcCrop = inverse.TransformBounds(screenRect);
// When src crop is very small, HWC could not render correctly in some cases.
// See Bug 1169093
if(srcCrop.Width() < MIN_SRC_WIDTH || srcCrop.Height() < MIN_SRC_HEIGHT) {
return false;
}
aVisibleRegionScreen->push_back(visibleRectScreen);
aIsVisible = true;
}
return true;
}示例4: DrawDiagnostics
void
Compositor::DrawDiagnostics(DiagnosticFlags aFlags,
const nsIntRegion& aVisibleRegion,
const gfx::IntRect& aClipRect,
const gfx::Matrix4x4& aTransform,
uint32_t aFlashCounter)
{
if (!ShouldDrawDiagnostics(aFlags)) {
return;
}
if (aVisibleRegion.GetNumRects() > 1) {
for (auto iter = aVisibleRegion.RectIter(); !iter.Done(); iter.Next()) {
DrawDiagnostics(aFlags | DiagnosticFlags::REGION_RECT,
IntRectToRect(iter.Get()), aClipRect, aTransform,
aFlashCounter);
}
}
DrawDiagnostics(aFlags, IntRectToRect(aVisibleRegion.GetBounds()),
aClipRect, aTransform, aFlashCounter);
}示例5: BytesPerPixel
//.........这里部分代码省略.........
} else {
format = LOCAL_GL_RGBA;
surfaceFormat = SurfaceFormat::B8G8R8X8;
type = LOCAL_GL_UNSIGNED_BYTE;
}
internalFormat = LOCAL_GL_RGBA;
break;
case SurfaceFormat::R8G8B8A8:
if (gl->GetPreferredARGB32Format() == LOCAL_GL_BGRA) {
// Upload our RGBA as BGRA, but store that the uploaded format is
// BGRA. (sample from R to get B)
format = LOCAL_GL_BGRA;
type = LOCAL_GL_UNSIGNED_INT_8_8_8_8_REV;
surfaceFormat = SurfaceFormat::B8G8R8A8;
} else {
format = LOCAL_GL_RGBA;
type = LOCAL_GL_UNSIGNED_BYTE;
surfaceFormat = SurfaceFormat::R8G8B8A8;
}
internalFormat = LOCAL_GL_RGBA;
break;
case SurfaceFormat::R8G8B8X8:
// Treat RGBX surfaces as RGBA except for the surface
// format used.
if (gl->GetPreferredARGB32Format() == LOCAL_GL_BGRA) {
format = LOCAL_GL_BGRA;
type = LOCAL_GL_UNSIGNED_INT_8_8_8_8_REV;
surfaceFormat = SurfaceFormat::B8G8R8X8;
} else {
format = LOCAL_GL_RGBA;
type = LOCAL_GL_UNSIGNED_BYTE;
surfaceFormat = SurfaceFormat::R8G8B8X8;
}
internalFormat = LOCAL_GL_RGBA;
break;
case SurfaceFormat::R5G6B5_UINT16:
internalFormat = format = LOCAL_GL_RGB;
type = LOCAL_GL_UNSIGNED_SHORT_5_6_5;
surfaceFormat = SurfaceFormat::R5G6B5_UINT16;
break;
case SurfaceFormat::A8:
internalFormat = format = LOCAL_GL_LUMINANCE;
type = LOCAL_GL_UNSIGNED_BYTE;
// We don't have a specific luminance shader
surfaceFormat = SurfaceFormat::A8;
break;
default:
NS_ASSERTION(false, "Unhandled image surface format!");
}
if (aOutUploadSize) {
*aOutUploadSize = 0;
}
if (aNeedInit || !CanUploadSubTextures(gl)) {
// If the texture needs initialized, or we are unable to
// upload sub textures, then initialize and upload the entire
// texture.
TexImage2DHelper(gl,
aTextureTarget,
0,
internalFormat,
aSize.width,
aSize.height,
aStride,
pixelSize,
0,
format,
type,
aData);
if (aOutUploadSize && aNeedInit) {
uint32_t texelSize = GetBytesPerTexel(internalFormat, type);
size_t numTexels = size_t(aSize.width) * size_t(aSize.height);
*aOutUploadSize += texelSize * numTexels;
}
} else {
// Upload each rect in the region to the texture
for (auto iter = aDstRegion.RectIter(); !iter.Done(); iter.Next()) {
const IntRect& rect = iter.Get();
const unsigned char* rectData =
aData + DataOffset(rect.TopLeft(), aStride, aFormat);
TexSubImage2DHelper(gl,
aTextureTarget,
0,
rect.x,
rect.y,
rect.Width(),
rect.Height(),
aStride,
pixelSize,
format,
type,
rectData);
}
}
return surfaceFormat;
}