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Add unit tests to ResamplePixels()

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Tests:
y-flipping: true/false
BGRA: true/false
Downsample from 4x4 to 2x2
This commit is contained in:
Jake Turner
2023-08-15 10:55:48 +01:00
parent a214ffcaf3
commit 2d53aa2a32
1 changed files with 111 additions and 0 deletions
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renderdoc/core/core.cpp
+111
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@@ -2176,4 +2176,115 @@ TEST_CASE("Check ResourceId tostr", "[tostr]")
CHECK(ToStr(*u.id) == "ResourceId::1311768465173141112");
}
TEST_CASE("Check ResamplePixels", "[core][resamplepixels]")
{
RenderDoc::FramePixels sourcePixels;
uint32_t height = 4;
uint32_t width = 4;
uint32_t bytesPerComponent = 1;
uint32_t countComponents = 3;
uint32_t stride = bytesPerComponent * countComponents;
uint32_t pitch = width * stride;
sourcePixels.data = new byte[pitch * height];
sourcePixels.len = 0;
sourcePixels.width = width;
sourcePixels.pitch = width * stride;
sourcePixels.height = height;
sourcePixels.stride = stride;
sourcePixels.bpc = bytesPerComponent;
sourcePixels.buf1010102 = false;
sourcePixels.buf565 = false;
sourcePixels.buf5551 = false;
sourcePixels.bgra = false;
sourcePixels.pitch_requirement = width;
sourcePixels.max_width = width;
byte *source = (byte *)sourcePixels.data;
for(uint32_t y = 0; y < height; ++y)
{
for(uint32_t x = 0; x < width; ++x)
{
byte *src = &source[stride * x + pitch * y];
src[0] = (byte)(y + x);
src[1] = (byte)(y + x * 2);
src[2] = (byte)(y + x * 3);
}
}
RDCThumb thumbOutYNotFlipped;
sourcePixels.is_y_flipped = false;
RenderDoc::Inst().ResamplePixels(sourcePixels, thumbOutYNotFlipped);
CHECK(thumbOutYNotFlipped.width == width);
CHECK(thumbOutYNotFlipped.height == height);
byte *dest = (byte *)thumbOutYNotFlipped.pixels.data();
for(uint32_t y = 0; y < height; ++y)
{
for(uint32_t x = 0; x < width; ++x)
{
byte *src = &source[stride * x + pitch * y];
byte *dst = &dest[stride * x + pitch * (height - y - 1)];
CHECK((uint32_t)src[0] == (uint32_t)dst[0]);
CHECK((uint32_t)src[1] == (uint32_t)dst[1]);
CHECK((uint32_t)src[2] == (uint32_t)dst[2]);
}
}
RDCThumb thumbOutYFlipped;
sourcePixels.is_y_flipped = true;
RenderDoc::Inst().ResamplePixels(sourcePixels, thumbOutYFlipped);
CHECK(thumbOutYFlipped.width == width);
CHECK(thumbOutYFlipped.height == height);
dest = (byte *)thumbOutYFlipped.pixels.data();
for(uint32_t y = 0; y < height; ++y)
{
for(uint32_t x = 0; x < width; ++x)
{
byte *src = &source[stride * x + pitch * y];
byte *dst = &dest[stride * x + pitch * y];
CHECK((uint32_t)src[0] == (uint32_t)dst[0]);
CHECK((uint32_t)src[1] == (uint32_t)dst[1]);
CHECK((uint32_t)src[2] == (uint32_t)dst[2]);
}
}
RDCThumb thumbOutBGRA;
sourcePixels.bgra = true;
RenderDoc::Inst().ResamplePixels(sourcePixels, thumbOutBGRA);
CHECK(thumbOutBGRA.width == width);
CHECK(thumbOutBGRA.height == height);
dest = (byte *)thumbOutBGRA.pixels.data();
for(uint32_t y = 0; y < height; ++y)
{
for(uint32_t x = 0; x < width; ++x)
{
byte *src = &source[stride * x + pitch * y];
byte *dst = &dest[stride * x + pitch * y];
CHECK((uint32_t)src[0] == (uint32_t)dst[2]);
CHECK((uint32_t)src[1] == (uint32_t)dst[1]);
CHECK((uint32_t)src[2] == (uint32_t)dst[0]);
}
}
RDCThumb thumbOutDownsample;
sourcePixels.bgra = false;
sourcePixels.max_width = 2;
sourcePixels.pitch_requirement = 2;
RenderDoc::Inst().ResamplePixels(sourcePixels, thumbOutDownsample);
CHECK(thumbOutDownsample.width == 2);
CHECK(thumbOutDownsample.height == 2);
dest = (byte *)thumbOutDownsample.pixels.data();
for(uint32_t y = 0; y < 2; ++y)
{
for(uint32_t x = 0; x < 2; ++x)
{
byte *src = &source[stride * x * 2 + pitch * y * 2];
byte *dst = &dest[stride * x + pitch / 2 * y];
CHECK((uint32_t)src[0] == (uint32_t)dst[0]);
CHECK((uint32_t)src[1] == (uint32_t)dst[1]);
CHECK((uint32_t)src[2] == (uint32_t)dst[2]);
}
}
}
#endif