C++ (Cpp) get_gray_color Beispiele

Beispiel #1

Datei: nge_graphics_ext.c Projekt: cjv123/hitplane_old_gfan

/**
 * 建立 src 图像的灰度版本
 * 
 * @param src 源图像
 * @param gray 灰度 0 到 100, 0 为源图像, 100 为纯灰色图像
 */
image_p create_gray_image(image_p src, int gray)
{
	uint32 y,x;
	uint8 recover = 0;
	image_p pimg;
	uint16 *p16,*psrc16;
	uint32 *p32,*psrc32;

	if(gray<0 || gray>100)
	{
		nge_print("create_gray_image arg 'gray' must between 0 to 100！");
		return NULL;
	}
	if(src->swizzle ==1){
		unswizzle_swap(src);
		recover = 1;
	}
	pimg = image_create(src->w, src->h, src->dtype);
	
	for(y=0;y<src->h;y++)
	{
		if(src->dtype == DISPLAY_PIXEL_FORMAT_8888)
		{
			p32 = (uint32 *)pimg->data + y*src->texw;
			psrc32 = (uint32 *)src->data + y*src->texw;
		}
		else
		{
			p16 = (uint16 *)pimg->data + y*src->texw;
			psrc16 = (uint16 *)src->data + y*src->texw;
		}
		
		for(x=0;x<src->w;x++)
		{
			if(src->dtype == DISPLAY_PIXEL_FORMAT_8888)
			{
				*(p32 + x) = (uint32)get_gray_color(pimg->dtype, *(psrc32 + x), gray);
			}
			else
			{
				*(p16 + x) = (uint16)get_gray_color(pimg->dtype, *(psrc16 + x), gray);
			}
		}
	}
	if(recover)
		swizzle_swap(src);

	return pimg;
}

Beispiel #2

Datei: nge_image_ext.c Projekt: eledot/libnge2

/**
 * 建立 src 图像的灰度版本
 *
 * @param src 源图像
 * @param gray 灰度 0 到 100, 0 为源图像, 100 为纯灰色图像
 */
image_p create_gray_image(image_p src, int gray)
{
	uint32_t y,x;
	image_p pimg;
	uint16_t *p16 = NULL,*psrc16 = NULL;
	uint32_t *p32 = NULL,*psrc32 = NULL;

	if(gray<0 || gray>100)
	{
		nge_print("create_gray_image arg 'gray' must between 0 to 100!");
		return NULL;
	}
	CHECK_AND_UNSWIZZLE(src);
	pimg = image_create(src->w, src->h, src->dtype);

	for(y=0;y<src->h;y++)
	{
		if(src->dtype == DISPLAY_PIXEL_FORMAT_8888)
		{
			p32 = (uint32_t *)pimg->data + y*src->texw;
			psrc32 = (uint32_t *)src->data + y*src->texw;
		}
		else
		{
			p16 = (uint16_t *)pimg->data + y*src->texw;
			psrc16 = (uint16_t *)src->data + y*src->texw;
		}

		for(x=0;x<src->w;x++)
		{
			if(src->dtype == DISPLAY_PIXEL_FORMAT_8888)
			{
				*(p32 + x) = (uint32_t)get_gray_color(pimg->dtype, *(psrc32 + x), gray);
			}
			else
			{
				*(p16 + x) = (uint16_t)get_gray_color(pimg->dtype, *(psrc16 + x), gray);
			}
		}
	}
	CHECK_AND_SWIZZLE(src);

	return pimg;
}