colorspace udma

=[uiimage imagewithcgimage:_scratchcgimg];[imageToDraw DrawInRect:self.frame];}Setsizebrush before Sethideview-(void) Sethideview: (uiview*) hideview{Cgcolorspaceref Colorspace=cgcolorspacecreatedevicegray ();CGFloat scale = [UIScreen mainscreen].scale;Get the cgimage of the current incoming viewUigraphicsbeginimagecontextwithoptions (hideView.bounds.size, NO, 0);Hideview.layer.contentsscale=scale;[Hideview.layer Renderincontext:uigraphicsgetcurrentco

][column, row] = (byte) pixel;}}return raster;}public static MemoryStream Encoderasterinformationtostream (byte[][,] raster, colorspace colorspace){ColorModel model = new ColorModel {colorspace = Colorspace.rgb};FluxJpeg.Core.Image img = new FluxJpeg.Core.Image (model, raster);Encode the Image as a JPEGMemoryStream stream = new MemoryStream ();FluxJpeg.Core.Encod

chassis cover is open, the field displays "detected". Drive Configuration Drive Settings Diskette Drive A: disk drive A: If a floppy drive is installed in the system, use this option to enable or disable the floppy disk drive Primary Master Drive First Master Drive Primary Slave Drive first from the drive Secondary Master Drive Second Master Drive Secondary Slave Drive second from drive IDE Drive UDMA support for

In the use of ghost Backup, restore the system, the speed is very slow. This situation is generally caused by the following reasons. 1. If the computer is a UDMA hard drive, to select 80 signal line of the line, if the use of 40 lines of line, in the ghost Run, the speed will have an impact. 2. Before preparing to restore the system, you can use the "VOTXP" software, first the hard disk, or use some tools to the system to "lose weight", which

memory bar be set to "2" in the SDRAM CAS latency option, which can speed up. Newer motherboards support agp4x, if your video card also support agp4x, then the "Agp-4xmode" in the activation, that is, "enabled", this will better play the ability of the graphics card, speed up the system start speed. Second, start the DMA mode, improve the speed of hard disk Using UDMA/33, 66, 100 the highest transmission speed of the hard disk is 33mb/s, 66mb/s, 1

1, the color of the pure color map with a pictureThin Body Code-(UIImage *) Imagecolordraw: (Uicolor *) color{cgsize size = self.size; CGFloat scale = [Osconfigservice sharedinstance].screenscale; Cgcolorspaceref colorspace = Cgcolorspacecreatedevicergb (); Cgcontextref context = Cgbitmapcontextcreate (NULL, Size.width * scale, Size.height*scale,8,4* Size.width * scale, colorspace,cg_image_alpha_p

) {[Self setopaque:no];Set transparency if it's opaque, you can't see the next layer.self.sizebrush=10.0f;}return self;}-(void) DrawRect: (cgrect) rect{[Super Drawrect:rect];uiimage* Imagetodraw=[uiimage imagewithcgimage:_scratchcgimg];[imageToDraw DrawInRect:self.frame];}Setsizebrush before Sethideview-(void) Sethideview: (uiview*) hideview{Cgcolorspaceref Colorspace=cgcolorspacecreatedevicegray ();CGFloat scale = [UIScreen mainscreen].scale;Get the

someone else a little bit of time.-(CGCONTEXTREF) createcontext{//Create the bitmap contextcgcolorspaceref colorspace = Cgcolorspacecreatedevicergb (); Cgcontextref context = Cgbitmapcontextcreate (nil,27,27,8,0,colorspace,kcgimagealphapremultipliedlast); Cfrelease (colorspace); return context;} -(CGIMAGEREF) Createbackarrowimageref{cgcontextref context = [Self

), 25 srcImage. getHeight (null), BufferedImage. TYPE_INT_ARGB); 26 Graphics2D g = bufferedImage. createGraphics (); 27g. drawImage (srcImage, null, null); 28g. dispose (); 29 return bufferedImage; 30} 31 32 // convert to grayscale fig 33 public static BufferedImage toGrayscale (Image image) {34 BufferedImage sourceBuffered = convertToBufferedFrom (image ); 35 ColorSpace cs = ColorSpace. getInst Ance (

implementing a linear gradient radial gradientThe new view has a drawrect: (cgrect) Rect method In this method, you can draw the content on the artboard (that is, the bottom view) gradient in two ways: 1 is a linear gradient 1 is a radial gradient first look at the linear gradient 1 set the context of the image 2 Get Color space description What type of color is he? 3 set start color end color and change them to CG color 4 set 4 parameters of the gradient gradient no need to create 2 3 5 draw li

static void Addroundedrecttopath (Cgcontextref context, CGRect rect, float ovalwidth, float ovalheight) {float FW, FH; Ovalwidth = = 0 | | Ovalheight = = 0) {cgcontextaddrect (context, rect); return;} Cgcontextsavegstate (context); CGCONTEXTTRANSLATECTM (Context, Cgrectgetminx (rect), Cgrectgetminy (rect)); CGCONTEXTSCALECTM (context, ovalwidth, ovalheight); FW = Cgrectgetwidth (rect)/ovalwidth; FH = cgrectgetheight (rect)/ovalheight; Cgcontextmovetopoint (Context, FW, FH/2); Start at lower righ

= cvpixelbuffergetheight (imagebuffer);Create a device-dependent RGB color spaceCgcolorspaceref ColorSpace =Cgcolorspacecreatedevicergb ();Creates a bitmap-formatted graphical context (graphic) object with sampled cached dataCgcontextref context =Cgbitmapcontextcreate (baseaddress, width, height,8, Bytesperrow, ColorSpace, Kcgbitmapbyteorder32little | kcgimagealphapremultipliedfirst) ; //creates a Quartz i

not repeat the introduction, the above 2 articles have been introduced, I directly posted a few important code. My code directly from the Mupdf source code to modify, wrote a simple class, the variable name basically did not change, member variables are not changed to resemble "MyValue" or "m_value", we casually look at it. MuPDFConvert.h: #ifndef MY_MUPDF_CONVERT_PDF_PNG#defineMY_MUPDF_CONVERT_PDF_PNGextern "C" {#include "Mupdf/fitz.h" #include "mupdf/fitz-internal.h"}classcmupdfconvert{publ

, boxsize, NULL, Kvimageedgeextend) ;if (Error) {NSLog (@ "error from convolution%ld", error);}Cgcolorspaceref colorspace = Cgcolorspacecreatedevicergb ();Cgcontextref CTX = cgbitmapcontextcreate (Outbuffer.data,Outbuffer.width,Outbuffer.height,8,Outbuffer.rowbytes,ColorSpace,Cgimagegetbitmapinfo (image. Cgimage));Cgimageref imageref = Cgbitmapcontextcreateimage (CTX);UIImage *returnimage = [UIImage imagewi

关键词的，要注意Release，同时转换成OC时要注意__bridge_transfer或者CGBridgingRelease()">Example 1:1Nslocale *gbnslocale = [[Nslocale alloc] Initwithlocaleidentifier:@"EN_GB"];2Cflocaleref Gbcflocale =(__bridge cflocaleref) Gbnslocale;3Cfstringref Cfidentifier =Cflocalegetidentifier (Gbcflocale);4NSLog (@"cfidentifier:%@", (__bridge NSString *) cfidentifier);5 //Logs: "CFIDENTIFIER:EN_GB"6Cflocaleref Mycflocale =cflocalecopycurrent ();7Nslocale *mynslocale = (Nslocale *) cfbridgingrelease (Mycflocale);8NSString *nsid

cgbitmapcontextcreate function parameters in detail function prototypes: Cgcontextref Cgbitmapcontextcreate (void *data, size_t width, size_t height, size_t Bitspercomponent, size_t Bytesperrow, Cgcolorspaceref ColorSpace, Cgbitmapinfo Bitmapinfo ); Parameters: Data points to the address of the drawing memory to render. The size of this memory block is at least (bytesperrow*height) bytes Width bitmap, in p

{If (_ image) {_ normalview. image = _ image; dispatch_async (dispatch_get_global_queue (dispatch_queue_priority_default, 0), ^ {If (_ blackimage = nil) {_ blackimage = [self grayscale: _ image];} dispatch_async (dispatch_get_main_queue (), ^ {_ blackview. image = _ blackimage;}) ;}}# Pragma mark-Private method-(uiimage *) grayscale :( uiimage *) inputimage {int width = inputimage. size. width; int Height = inputimage. size. height; cgcolorspaceref colorspa