Function imageParseStbImage

3rdparty/bimg/src/image_decode.cpp:647–701

	}

	static ImageContainer* imageParseStbImage(bx::AllocatorI* _allocator, const void* _data, uint32_t _size, bx::Error* _err)
	{
		BX_ERROR_SCOPE(_err);

		const int isHdr = stbi_is_hdr_from_memory( (const uint8_t*)_data, (int)_size);

		void* data;
		uint32_t width  = 0;
		uint32_t height = 0;
		int comp = 0;
		if (isHdr)
		{
			data = stbi_loadf_from_memory( (const uint8_t*)_data, (int)_size, (int*)&width, (int*)&height, &comp, 4);
		}
		else
		{
			data = stbi_load_from_memory ( (const uint8_t*)_data, (int)_size, (int*)&width, (int*)&height, &comp, 0);
		}

		if (NULL == data)
		{
			return NULL;
		}

		bimg::TextureFormat::Enum format = bimg::TextureFormat::RGBA8;

		if (isHdr)
		{
			format = bimg::TextureFormat::RGBA32F;
		}
		else
		{
			switch (comp)
			{
				case 1:  format = bimg::TextureFormat::R8;   break;
				case 2:  format = bimg::TextureFormat::RG8;  break;
				case 3:  format = bimg::TextureFormat::RGB8; break;
				default: break;
			}
		}

		ImageContainer* output = imageAlloc(_allocator
			, format
			, bx::narrowCast<uint16_t>(width)
			, bx::narrowCast<uint16_t>(height)
			, 0
			, 1
			, false
			, false
			, data
			);
		stbi_image_free(data);

		return output;
	}

	static ImageContainer* imageParseJpeg(bx::AllocatorI* _allocator, const void* _data, uint32_t _size, bx::Error* _err)
	{