diff --git a/tests/resample_test.cpp b/tests/resample_test.cpp
index 98e7166..f785739 100644
--- a/tests/resample_test.cpp
+++ b/tests/resample_test.cpp
@@ -63,9 +63,6 @@ int main(int argc, char** argv)
 	float s1 = 0.75f;
 	float t1 = 0.75f;
 
-	size_t memory_required = stbr_calculate_memory(in_w, in_h, out_w, out_h, s0, t0, s1, t1, n, STBR_FILTER_CATMULLROM);
-	void* extra_memory = malloc(memory_required);
-
 	// Cut out the outside 64 pixels all around to test the stride.
 	int border = 64;
 	STBR_ASSERT(in_w + border <= w);
@@ -79,7 +76,7 @@ int main(int argc, char** argv)
 	{
 		ftime(&initial_time_millis);
 		for (int i = 0; i < 100; i++)
-			stbr_resize_advanced(input_data + w * border * n + border * n, in_w, in_h, w*n, output_data, out_w, out_h, out_stride, n, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
+			stbr_resize_advanced(input_data + w * border * n + border * n, in_w, in_h, w*n, output_data, out_w, out_h, out_stride, n, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB);
 		ftime(&final_time_millis);
 		long lapsed_ms = (long)(final_time_millis.time - initial_time_millis.time) * 1000 + (final_time_millis.millitm - initial_time_millis.millitm);
 		printf("Resample: %dms\n", lapsed_ms);
@@ -91,10 +88,9 @@ int main(int argc, char** argv)
 
 	printf("Average: %dms\n", average);
 #else
-	stbr_resize_advanced(input_data + w * border * n + border * n, in_w, in_h, w*n, output_data, out_w, out_h, out_stride, s0, t0, s1, t1, n, 0, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
+	stbr_resize_arbitrary(input_data + w * border * n + border * n, in_w, in_h, w*n, output_data, out_w, out_h, out_stride, s0, t0, s1, t1, n, 0, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB);
 #endif
 
-	free(extra_memory);
 	stbi_image_free(input_data);
 
 	stbi_write_png("output.png", out_w, out_h, n, output_data, out_stride);
@@ -120,12 +116,8 @@ void resize_image(const char* filename, float width_percent, float height_percen
 
 	unsigned char* output_data = (unsigned char*)malloc(out_w * out_h * n);
 
-	size_t memory_required = stbr_calculate_memory(w, h, out_w, out_h, 0, 0, 1, 1, n, filter);
-	void* extra_memory = malloc(memory_required);
+	stbr_resize_arbitrary(input_data, w, h, 0, output_data, out_w, out_h, 0, 0, 0, 1, 1, n, 0, STBR_TYPE_UINT8, filter, edge, colorspace);
 
-	stbr_resize_advanced(input_data, w, h, 0, output_data, out_w, out_h, 0, 0, 0, 1, 1, n, 0, STBR_TYPE_UINT8, filter, edge, colorspace, extra_memory, memory_required);
-
-	free(extra_memory);
 	stbi_image_free(input_data);
 
 	stbi_write_png(output_filename, out_w, out_h, n, output_data, 0);
@@ -199,10 +191,7 @@ void test_float(const char* file, float width_percent, float height_percent, stb
 
 	float* output_data = (float*)malloc(new_w * new_h * n * sizeof(float));
 
-	size_t required = stbr_calculate_memory(w, h, new_w, new_h, 0, 0, 1, 1, n, STBR_FILTER_CATMULLROM);
-	void* extra_memory = malloc(required);
-	stbr_resize_advanced(T_data, w, h, 0, output_data, new_w, new_h, 0, 0, 0, 1, 1, n, 0, type, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, colorspace, extra_memory, required);
-	free(extra_memory);
+	stbr_resize_arbitrary(T_data, w, h, 0, output_data, new_w, new_h, 0, 0, 0, 1, 1, n, 0, type, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, colorspace);
 
 	free(T_data);
 	stbi_image_free(input_data);
@@ -264,12 +253,7 @@ void test_subpixel(const char* file, float width_percent, float height_percent,
 
 	unsigned char* output_data = (unsigned char*)malloc(new_w * new_h * n * sizeof(unsigned char));
 
-	size_t tempmem_size = stbr_calculate_memory(w, h, new_w, new_h, 0, 0, s1, t1, n, STBR_FILTER_CATMULLROM);
-	void* tempmem = malloc(tempmem_size);
-
-	stbr_resize_advanced(input_data, w, h, 0, output_data, new_w, new_h, 0, 0, 0, s1, t1, n, 0, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, tempmem, tempmem_size);
-
-	free(tempmem);
+	stbr_resize_arbitrary(input_data, w, h, 0, output_data, new_w, new_h, 0, 0, 0, s1, t1, n, 0, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB);
 
 	stbi_image_free(input_data);
 
@@ -300,22 +284,17 @@ void test_premul(const char* file)
 
 	unsigned char* output_data = (unsigned char*)malloc(new_w * new_h * n * sizeof(unsigned char));
 
-	size_t tempmem_size = stbr_calculate_memory(w, h, new_w, new_h, 0, 0, 1, 1, n, STBR_FILTER_CATMULLROM);
-	void* tempmem = malloc(tempmem_size);
-
-	stbr_resize_advanced(input_data, w, h, 0, output_data, new_w, new_h, 0, 0, 0, 1, 1, n, 3, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, tempmem, tempmem_size);
+	stbr_resize_arbitrary(input_data, w, h, 0, output_data, new_w, new_h, 0, 0, 0, 1, 1, n, 3, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB);
 
 	char output[200];
 	sprintf(output, "test-output/premul-%s", file);
 	stbi_write_png(output, new_w, new_h, n, output_data, 0);
 
-	stbr_resize_advanced(input_data, w, h, 0, output_data, new_w, new_h, 0, 0, 0, 1, 1, n, 0, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, tempmem, tempmem_size);
+	stbr_resize_arbitrary(input_data, w, h, 0, output_data, new_w, new_h, 0, 0, 0, 1, 1, n, 0, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB);
 
 	sprintf(output, "test-output/nopremul-%s", file);
 	stbi_write_png(output, new_w, new_h, n, output_data, 0);
 
-	free(tempmem);
-
 	stbi_image_free(input_data);
 
 	free(output_data);