C++ (Cpp) Image_setData_width_height_componentCount_示例

示例#1

文件： IoImage.c 项目： Alessandroo/io

IoObject *IoImage_setDataWidthHeightComponentCount(IoImage *self, IoObject *locals, IoMessage *m)
{
	/*doc Image setDataWidthHeightComponentCount(aSequence, width, height, componentCount)
	Sets the image data and its parameters. Returns self.
	*/

	IoSeq *data = IoMessage_locals_seqArgAt_(m, locals, 0);
	int w = IoMessage_locals_intArgAt_(m, locals, 1);
	int h = IoMessage_locals_intArgAt_(m, locals, 2);
	int c = IoMessage_locals_intArgAt_(m, locals, 3);

	//printf("Image Image_setData_width_height_componentCount_\n");
	Image_setData_width_height_componentCount_(DATA(self)->image, IoSeq_rawUArray(data), w, h, c);
	//printf("Image returning self\n");
	return self;
}

示例#2

文件： Image.c 项目： iamaleksey/io

void Image_resizeTo(Image *self, int w, int h, Image *outImage)
{
	int componentCount = self->componentCount;

	int inStride = self->width * componentCount;
	uint8_t *inPtr = Image_data(self);

	int outStride = w * componentCount;
	uint8_t *outPtr;
	int y;
	
	UArray *outUArray = UArray_new();
	UArray_setSize_(outUArray, h * outStride);
	outPtr = (uint8_t *)UArray_bytes(outUArray);

	for (y=0; y < self->height; y++, inPtr += inStride, outPtr += outStride)
		memcpy(outPtr, inPtr, inStride);

	Image_setData_width_height_componentCount_(outImage, outUArray, w, h, componentCount);
}