Painter/bitmap_painter/DrawBitmapBilinear.h

46 		agg::rendering_buffer* bitmap, const FilterData& filterData)
52 		fWeightsX = filterData.fWeightsX;
53 		fWeightsY = filterData.fWeightsY;
80 			const int32 xIndexL = x1 - left - filterData.fIndexOffsetX;
81 			const int32 xIndexR = x2 - left - filterData.fIndexOffsetX;
82 			y1 -= top + filterData.fIndexOffsetY;
83 			y2 -= top + filterData.fIndexOffsetY;
504 		FilterData filterData;
505 		filterData.fIndexOffsetX = 0;
506 		filterData.fIndexOffsetY = 0;
508 			filterData.fIndexOffsetX = (int32)(clippingRegion.Frame().left
512 			filterData.fIndexOffsetY = (int32)(clippingRegion.Frame().top
518 		filterData.fWeightsX = new (nothrow) FilterInfo[dstWidth];
519 		filterData.fWeightsY = new (nothrow) FilterInfo[dstHeight];
520 		if (filterData.fWeightsX == NULL || filterData.fWeightsY == NULL) {
521 			delete[] filterData.fWeightsX;
522 			delete[] filterData.fWeightsY;
531 		filterData.fWeightsX = &xWeights[0];
532 		filterData.fWeightsY = &yWeights[0];
550 			float index = (i + filterData.fIndexOffsetX) * (srcWidth - 1)
553 			filterData.fWeightsX[i].index = (uint16)index;
554 			filterData.fWeightsX[i].weight =
555 				255 - (uint16)((index - filterData.fWeightsX[i].index) * 255);
557 			filterData.fWeightsX[i].index += xBitmapShift;
559 			filterData.fWeightsX[i].index *= 4;
570 			float index = (i + filterData.fIndexOffsetY) * (srcHeight - 1)
573 			filterData.fWeightsY[i].index = (uint16)index;
574 			filterData.fWeightsY[i].weight =
575 				255 - (uint16)((index - filterData.fWeightsY[i].index) * 255);
577 			filterData.fWeightsY[i].index += yBitmapShift;
617 					filterData);
625 					&bitmap, filterData);
634 					filterData);
641 		delete[] filterData.fWeightsX;
642 		delete[] filterData.fWeightsY;