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C++ BitmapStorage::PutPixels方法代码示例

本文整理汇总了C++中BitmapStorage::PutPixels方法的典型用法代码示例。如果您正苦于以下问题：C++ BitmapStorage::PutPixels方法的具体用法？C++ BitmapStorage::PutPixels怎么用？C++ BitmapStorage::PutPixels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类BitmapStorage的用法示例。


在下文中一共展示了BitmapStorage::PutPixels方法的4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: palette


//.........这里部分代码省略.........
        png_destroy_read_struct (&png, &info, NULL);
		return NULL;
	}

    if(storage->Allocate(fbi, manager, BMM_OPEN_R)==0) {
		delete storage;
		storage = NULL;
		fclose(istream);
        png_destroy_read_struct (&png, &info, NULL);
		return NULL;
	}

	row_pointers = (png_bytep *)malloc(info->height * sizeof(png_bytep));

	for (png_uint_32 i = 0; i < info->height; i++)
		row_pointers[i] = (png_bytep)malloc(info->rowbytes);

	// now read the image
	png_read_image(png, row_pointers);

	switch(bmtype) {
	case BMM_LINE_ART: {
		BMM_Color_64 *line64 = (BMM_Color_64 *) calloc(info->width, sizeof(BMM_Color_64));
		for (png_uint_32 iy = 0; iy < info->height; iy++) {
			BMM_Color_64 *l64 = line64;
			for (png_uint_32 ix = 0; ix < info->width; ix++,l64++) {
				png_uint_32 abyte = ix / 8;
				png_uint_32 abit = ix % 8;
				unsigned char tbyte = row_pointers[iy][abyte];
				unsigned char c = tbyte & (0x80 >> abit);
				l64->r = l64->g = l64->b = c ? 0xffff : 0;
				l64->a = 0;
			}
			storage->PutPixels(0, iy, info->width, line64);
		}
		free(line64);
		}
		break;
	case BMM_PALETTED: {
		if (info->bit_depth == 8) {
			for (png_uint_32 iy = 0; iy < info->height; iy++)
				storage->PutIndexPixels(0, iy, info->width, row_pointers[iy]);
		} else {
			unsigned char *pixels = (unsigned char *)calloc(info->width, sizeof(unsigned char));
			for (png_uint_32 iy = 0; iy < info->height; iy++) {
				// now fill a row of pixels
				unsigned char *inbyte = row_pointers[iy];
				for (png_uint_32 ix = 0; ix < info->width; inbyte++) {
					switch(info->bit_depth) {
					case 2:
						pixels[ix] = (*inbyte & 0xc0) >> 6;
						ix++; if (ix >= info->width) break;
						pixels[ix] = (*inbyte & 0x30) >> 4;
						ix++; if (ix >= info->width) break;
						pixels[ix] = (*inbyte & 0x0c) >> 2;
						ix++; if (ix >= info->width) break;
						pixels[ix] = *inbyte & 0x03;
						ix++;
						break;
					case 4:
						pixels[ix] = (*inbyte & 0xf0) >> 4;
						ix++; if (ix >= info->width) break;
						pixels[ix] = *inbyte & 0x0f;
						ix++;
						break;
					}
开发者ID:2asoft，项目名称:xray，代码行数:67，代码来源:png.cpp

示例2: file


//.........这里部分代码省略.........

         if (!p)
            goto memory_error_out;

         do 
         {
            pixels = fread(p,1,w,file.stream);
   
            if (pixels != w && pixels != 0)
               goto io_error_out;
            
            if (pixels)  
            {
               s->PutIndexPixels(0,(h - rows),fbi->Width(),p);
               rows++;
               if (rows>h) break;
            }

            //-- Progress Report
         
            if (fbi->GetUpdateWindow())
               SendMessage(fbi->GetUpdateWindow(),BMM_PROGRESS,rows,h);

         } while (pixels);
         break;

      case 24:
      case 32:
         {
      
            //-- Read Image (24/32 Bits) ----------------------------
            bool hasAlpha = (bmi.biBitCount == 32);

            w    = fbi->Width();
            if(!hasAlpha) {
               wb   = (fbi->Width() * 3 + 3) & ~3; // width bytes must be multiple of 4
            }
            else {
               wb   = (fbi->Width() * 4);
            }
            h    = fbi->Height() - 1;
      
            b = (BMM_Color_64  *)malloc(fbi->Width()*sizeof(BMM_Color_64));
            p = (BYTE          *)malloc(wb);

            if(!b || !p)
               goto memory_error_out;

            BYTE *ptr;
      
            do 
            {

               pixels = fread(p,1,wb,file.stream);

               if (pixels != wb && pixels != 0)
                  goto io_error_out;
                  
               if (pixels)  
               {
                  ptr = p;
                  for (int x = 0; x < w; x++) 
                  {
                     b[x].b = (WORD)((*ptr++) << 8);
                     b[x].g = (WORD)((*ptr++) << 8);
                     b[x].r = (WORD)((*ptr++) << 8);
                     if(hasAlpha) {
                        b[x].a = (WORD)((*ptr++) << 8);
                     }
                  }
                  if (s->PutPixels(0,(h - rows),w,b)!=1)
                     goto io_error_out;
                  rows++;
                  if (rows>h) break;
               }

               //-- Progress Report
            
               if (fbi->GetUpdateWindow())
                  SendMessage(fbi->GetUpdateWindow(),BMM_PROGRESS,rows,h);

            } while (pixels);
         }
         break;
   }
   
   //-- Clean Up ----------------------------------------
   
   if (b) free(b);
   if (p) free(p);
   if (b8)free(b8);
   if (b4)free(b4);

   //-- Set the storage's BitmapInfo

   s->bi.CopyImageInfo(fbi);

   return  s;
   
}
开发者ID:innovatelogic，项目名称:ilogic-vm，代码行数:101，代码来源:bmp.cpp

示例3: file

//FIXME
BitmapStorage*
BitmapIO_CIN::Load(BitmapInfo* bmi, Bitmap* bm, unsigned short* status)
{
    BitmapStorage* bms = NULL;
    File file(bmi->Name(), _T("rb"));

    *status = BMMRES_SUCCESS;
    
    if (!file.mStream) {
        *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_File_Open_Error));
        return NULL;
    }

    mStream = file.mStream;

    if (openMode != BMM_NOT_OPEN) {
        *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_Internal_Error));
        return NULL;
    }

    CineonFile cineonImage(mStream);

    if (cineonImage.VerifyHeader() == FALSE) {
        *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_Invalid_Header_Error));
        return NULL;
    }
    
    if (!cineonImage.IsSupported()) {
        *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_Unsupported_File_Error));
        return NULL;
    }

    unsigned int pixelsPL = cineonImage.GetPixelsPerLine();
    unsigned int linesPI  = cineonImage.GetLinesPerImage();

    bmi->SetWidth(pixelsPL);
    bmi->SetHeight(linesPI);
 // bmi->SetGamma(cineonImage.GetImageGamma());
 // bmi->SetAspect();
    bmi->SetFirstFrame(0);
    bmi->SetLastFrame(0);
 // bmi->SetFlags(MAP_NOFLAGS);

    bms = BMMCreateStorage(bm->Manager(), BMM_TRUE_64);
    if (!bms) {
        *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_Internal_Error));
        return NULL;
    }

    if (!(bms->Allocate(bmi, bm->Manager(), BMM_OPEN_R))) {
        *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_Memory_Error));
        delete bms;
        bms = NULL;
        return NULL;
    }

    BMM_Color_64* scanLine = (BMM_Color_64*) calloc(pixelsPL, sizeof(BMM_Color_64));
    if (!scanLine) {
        *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_Memory_Error));
        if (bms) { delete bms; bms = NULL; }
        return NULL;
    }

    if (!cineonImage.SetLUTs(10, (float) mUserData.mRefWhite, (float) mUserData.mRefBlack)) {
        *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_Memory_Error));
        if (bms) { delete bms; bms = NULL; }
        return NULL;
    }

    for (unsigned int cnt = 0; cnt < linesPI; cnt++) {
     // 4 WORD Channels
        if (!cineonImage.GetScanLine((unsigned short*)scanLine, cnt, pixelsPL)) {
            *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_File_IO_Error));
            if (bms) { delete bms; bms = NULL; }
            if (scanLine) { free(scanLine); scanLine = NULL; }
            return NULL;
        }
     // test colors ~ 5sec 1828x1332
        /*
        float r1 = ((float) cnt) / ((float) linesPI);
        for (unsigned int i = 0; i < pixelsPL; i++) {
            float r2 = ((float) i) / ((float) pixelsPL);
            scanLine[i].r = (int) (65535.f *  r1);
            scanLine[i].g = (int) (65535.f *  r2);
            scanLine[i].b = (int) (65535.f * (r1 * r2));
            scanLine[i].a = 0;  //CIN has no alpha
        }
        */

        if (!bms->PutPixels(0, cnt, pixelsPL, scanLine)) {
            *status = ProcessImageIOError(bmi, GetResIDCaption(IDS_CIN_Internal_Error));
            if (bms) { delete bms; bms = NULL; }
            if (scanLine) { free(scanLine); scanLine = NULL; }
            return NULL;
        }
    }

    if (scanLine) { free(scanLine); scanLine = NULL; }
    openMode = BMM_OPEN_R;
//.........这里部分代码省略.........
开发者ID:2asoft，项目名称:xray，代码行数:101，代码来源:cin.cpp

示例4: file

BitmapStorage *BitmapIO_YUV::Load(BitmapInfo *fbi, Bitmap *map, BMMRES *status) {

     unsigned char *yuvbuf = NULL;
     BMM_Color_64  *rgbbuf = NULL;
     BitmapStorage *s      = NULL;

	//-- Initialize Status Optimistically

	*status = BMMRES_SUCCESS;

	//-- Make sure nothing weird is going on

	if(openMode != BMM_NOT_OPEN) {
		*status = ProcessImageIOError(fbi,BMMRES_INTERNALERROR);
		return NULL;
	}

     //-- Update Bitmap Info
     
     *status = GetImageInfo(fbi);
     
     if (*status != BMMRES_SUCCESS)
        return(NULL);

     //-- Open YUV File -----------------------------------
     
     File file(fbi->Name(), _T("rb"));

	 inStream = file.stream;
     if (inStream == NULL) {
		*status = ProcessImageIOError(fbi);
        return NULL;
     }

     //-- Create Image Storage ---------------------------- 
     
     s = BMMCreateStorage(map->Manager(),BMM_TRUE_32);

     if(!s) {
		*status = ProcessImageIOError(fbi,BMMRES_INTERNALERROR);
        return NULL;
     }

     //-- Allocate Image Storage --------------------------
     
     if (s->Allocate(fbi,map->Manager(),BMM_OPEN_R)==0) {
        memory_error_out:
		*status = ProcessImageIOError(fbi,BMMRES_MEMORYERROR);
        goto bail_out;
        io_error_out:
		*status = ProcessImageIOError(fbi);
        bail_out:
        if (s) 
           delete s;
        if (yuvbuf)
           free(yuvbuf);
        if (rgbbuf)
           free(rgbbuf);
        return NULL;
     }

     //-- Allocate Buffers --------------------------------
     
     yuvbuf=(unsigned char *)malloc(fbi->Width()*2);
     rgbbuf=(BMM_Color_64  *)malloc(fbi->Width()*sizeof(BMM_Color_64));

     if(!yuvbuf || !rgbbuf)
        goto memory_error_out;
     
     //-- Read Image

     INT_PTR pixels = fbi->Width() * fbi->Height();
     int rows   = 0;
     
     while (pixels) {
        pixels = fread(yuvbuf,2,fbi->Width(),inStream);
        if (pixels != fbi->Width() && pixels != 0)  {
           goto io_error_out;
        }
        if (pixels)  {
           YUVtoRGB(rgbbuf,yuvbuf,fbi->Width());
           if (s->PutPixels(0,rows,fbi->Width(),rgbbuf)!=1)
              goto io_error_out;
           rows++;
           if (rows>fbi->Height()) break;
        }   

        //-- Progress Report
        
        if (fbi->GetUpdateWindow())
           SendMessage(fbi->GetUpdateWindow(),BMM_PROGRESS,rows,fbi->Height());

     }
     
     if (yuvbuf)
        free(yuvbuf);
     if (rgbbuf)
        free(rgbbuf);

     //-- Set the storage's BitmapInfo
//.........这里部分代码省略.........
开发者ID:innovatelogic，项目名称:ilogic-vm，代码行数:101，代码来源:yuv.cpp


注：本文中的BitmapStorage::PutPixels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。