Add a pixel test with a free-form Gouraud-shaded triangle mesh.
Show how it does not render correctly. i.e. The expected result shows
the current behavior, not the desired behavior.
Bug: pdfium:1546
Change-Id: I6591c25bc515353bea6d2a3f582079e150da6ec7
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/70911
Reviewed-by: Daniel Hosseinian <dhoss@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/testing/resources/pixel/bug_1546.in b/testing/resources/pixel/bug_1546.in
new file mode 100644
index 0000000..fb423d0
--- /dev/null
+++ b/testing/resources/pixel/bug_1546.in
@@ -0,0 +1,77 @@
+{{header}}
+{{object 1 0}} <<
+ /Type /Catalog
+ /Pages 2 0 R
+>>
+endobj
+{{object 2 0}} <<
+ /Type /Pages
+ /Count 1
+ /Kids [3 0 R]
+>>
+endobj
+{{object 3 0}} <<
+ /Type /Page
+ /Parent 2 0 R
+ /Resources <<
+ /Shading <<
+ /S0 5 0 R
+ >>
+ >>
+ /Contents 4 0 R
+ /MediaBox [0 0 200 300]
+>>
+endobj
+{{object 4 0}} <<
+ {streamlen}}
+>>
+stream
+/S0 sh
+endstream
+endobj
+{{object 5 0}} <<
+ /ShadingType 4
+ /BitsPerComponent 8
+ /BitsPerCoordinate 16
+ /BitsPerFlag 8
+ /ColorSpace /DeviceRGB
+ /Decode [-32768 32767 -32768 32767 0 1]
+ /Filter /ASCIIHexDecode
+ /Function 6 0 R
+ {{streamlen}}
+>>
+stream
+00800a800a0000800a80c8ff00806480c800
+endstream
+endobj
+{{object 6 0}} <<
+ /FunctionType 3
+ /Bounds [0.5]
+ /Domain [0 1]
+ /Encode [0 1 0 1]
+ /Functions [7 0 R 8 0 R]
+ /Range [0 1 0 1 0 1]
+>>
+endobj
+{{object 7 0}} <<
+ /FunctionType 2
+ /C0 [1 0 0]
+ /C1 [0 1 0]
+ /Domain [0 1]
+ /N 1
+ /Range [0 1 0 1 0 1]
+>>
+endobj
+{{object 8 0}} <<
+ /FunctionType 2
+ /C0 [0 1 0]
+ /C1 [0 0 1]
+ /Domain [0 1]
+ /N 1
+ /Range [0 1 0 1 0 1]
+>>
+endobj
+{{xref}}
+{{trailer}}
+{{startxref}}
+%%EOF
diff --git a/testing/resources/pixel/bug_1546_expected.pdf.0.png b/testing/resources/pixel/bug_1546_expected.pdf.0.png
new file mode 100644
index 0000000..e993bf1
--- /dev/null
+++ b/testing/resources/pixel/bug_1546_expected.pdf.0.png
Binary files differ
