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Tests for edge behavior

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master
Jorge Rodriguez ago%!(EXTRA string=11 years)
parent 59cb71ea18
commit c2449acc3e
1 changed files with 20 additions and 10 deletions
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  1. 30
      tests/resample_test.cpp

30
tests/resample_test.cpp
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@ -96,7 +96,7 @@ int main(int argc, char** argv)
return 0; return 0;
} }
void resize_image(const char* filename, float width_percent, float height_percent, stbr_filter filter, stbr_edge edge, const char* output_filename) void resize_image(const char* filename, float width_percent, float height_percent, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace, const char* output_filename)
{ {
int w, h, n; int w, h, n;
@ -115,7 +115,7 @@ void resize_image(const char* filename, float width_percent, float height_percen
size_t memory_required = stbr_calculate_memory(w, h, out_w, out_h, n, filter); size_t memory_required = stbr_calculate_memory(w, h, out_w, out_h, n, filter);
void* extra_memory = malloc(memory_required); void* extra_memory = malloc(memory_required);
stbr_resize_arbitrary(input_data, w, h, 0, output_data, out_w, out_h, 0, n, STBR_TYPE_UINT8, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required); stbr_resize_arbitrary(input_data, w, h, 0, output_data, out_w, out_h, 0, n, STBR_TYPE_UINT8, filter, edge, colorspace, extra_memory, memory_required);
free(extra_memory); free(extra_memory);
stbi_image_free(input_data); stbi_image_free(input_data);
@ -212,44 +212,54 @@ void test_float(const char* file, float width_percent, float height_percent, stb
void test_suite() void test_suite()
{ {
// Edge behavior tests
resize_image("hgradient.png", 2, 2, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_LINEAR, "test-output/hgradient-clamp.png");
resize_image("hgradient.png", 2, 2, STBR_FILTER_CATMULLROM, STBR_EDGE_WRAP, STBR_COLORSPACE_LINEAR, "test-output/hgradient-wrap.png");
resize_image("vgradient.png", 2, 2, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_LINEAR, "test-output/vgradient-clamp.png");
resize_image("vgradient.png", 2, 2, STBR_FILTER_CATMULLROM, STBR_EDGE_WRAP, STBR_COLORSPACE_LINEAR, "test-output/vgradient-wrap.png");
resize_image("1px-border.png", 2, 2, STBR_FILTER_CATMULLROM, STBR_EDGE_REFLECT, STBR_COLORSPACE_LINEAR, "test-output/1px-border-reflect.png");
resize_image("1px-border.png", 2, 2, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_LINEAR, "test-output/1px-border-clamp.png");
// sRGB tests // sRGB tests
resize_image("gamma_colors.jpg", .5f, .5f, STBR_FILTER_CATMULLROM, STBR_EDGE_REFLECT, "test-output/gamma_colors.jpg"); resize_image("gamma_colors.jpg", .5f, .5f, STBR_FILTER_CATMULLROM, STBR_EDGE_REFLECT, STBR_COLORSPACE_SRGB, "test-output/gamma_colors.jpg");
resize_image("gamma_2.2.jpg", .5f, .5f, STBR_FILTER_CATMULLROM, STBR_EDGE_REFLECT, "test-output/gamma_2.2.jpg"); resize_image("gamma_2.2.jpg", .5f, .5f, STBR_FILTER_CATMULLROM, STBR_EDGE_REFLECT, STBR_COLORSPACE_SRGB, "test-output/gamma_2.2.jpg");
resize_image("gamma_dalai_lama_gray.jpg", .5f, .5f, STBR_FILTER_CATMULLROM, STBR_EDGE_REFLECT, "test-output/gamma_dalai_lama_gray.jpg"); resize_image("gamma_dalai_lama_gray.jpg", .5f, .5f, STBR_FILTER_CATMULLROM, STBR_EDGE_REFLECT, STBR_COLORSPACE_SRGB, "test-output/gamma_dalai_lama_gray.jpg");
for (int i = 10; i < 100; i++) for (int i = 10; i < 100; i++)
{ {
char outname[200]; char outname[200];
sprintf(outname, "test-output/barbara-width-%d.jpg", i); sprintf(outname, "test-output/barbara-width-%d.jpg", i);
resize_image("barbara.png", (float)i / 100, 1, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, outname); resize_image("barbara.png", (float)i / 100, 1, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, outname);
} }
for (int i = 110; i < 500; i += 10) for (int i = 110; i < 500; i += 10)
{ {
char outname[200]; char outname[200];
sprintf(outname, "test-output/barbara-width-%d.jpg", i); sprintf(outname, "test-output/barbara-width-%d.jpg", i);
resize_image("barbara.png", (float)i / 100, 1, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, outname); resize_image("barbara.png", (float)i / 100, 1, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, outname);
} }
for (int i = 10; i < 100; i++) for (int i = 10; i < 100; i++)
{ {
char outname[200]; char outname[200];
sprintf(outname, "test-output/barbara-height-%d.jpg", i); sprintf(outname, "test-output/barbara-height-%d.jpg", i);
resize_image("barbara.png", 1, (float)i / 100, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, outname); resize_image("barbara.png", 1, (float)i / 100, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, outname);
} }
for (int i = 110; i < 500; i += 10) for (int i = 110; i < 500; i += 10)
{ {
char outname[200]; char outname[200];
sprintf(outname, "test-output/barbara-height-%d.jpg", i); sprintf(outname, "test-output/barbara-height-%d.jpg", i);
resize_image("barbara.png", 1, (float)i / 100, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, outname); resize_image("barbara.png", 1, (float)i / 100, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, outname);
} }
for (int i = 50; i < 200; i += 10) for (int i = 50; i < 200; i += 10)
{ {
char outname[200]; char outname[200];
sprintf(outname, "test-output/barbara-width-height-%d.jpg", i); sprintf(outname, "test-output/barbara-width-height-%d.jpg", i);
resize_image("barbara.png", 100 / (float)i, (float)i / 100, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, outname); resize_image("barbara.png", 100 / (float)i, (float)i / 100, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB, outname);
} }
test_format<unsigned short>("barbara.png", 0.5, 2.0, STBR_TYPE_UINT16, STBR_COLORSPACE_SRGB); test_format<unsigned short>("barbara.png", 0.5, 2.0, STBR_TYPE_UINT16, STBR_COLORSPACE_SRGB);

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