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Unified Diff: remoting/client/gl_math.h

Issue 2175963002: [Chromoting] Implement GlRenderer (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Implements full transpose Created 4 years, 5 months ago
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Index: remoting/client/gl_math.h
diff --git a/remoting/client/gl_math.h b/remoting/client/gl_math.h
index 3ea6731f82db464c7334338ca036d8a7f4b6acd0..be66eedba186feba95a4c6e8949177f2b535a252 100644
--- a/remoting/client/gl_math.h
+++ b/remoting/client/gl_math.h
@@ -28,6 +28,15 @@ void NormalizeTransformationMatrix(int view_width,
int canvas_height,
std::array<float, 9>* matrix);
+// Transposes matrix [ m0, m1, m2, m3, m4, m5, m6, m7, m8 ]:
+//
+// | m0, m1, m2, | | x |
+// | m3, m4, m5, | * | y |
+// | m6, m7, m8 | | 1 |
+//
+// Into [ m0, m3, m6, m1, m4, m7, m2, m5, m8 ].
+void TransposeTransformationMatrix(std::array<float, 9>* matrix);
+
// Given left, top, width, height of a rectangle, fills |positions| with
// coordinates of four vertices of the rectangle.
// positions: [ x_upperleft, y_upperleft, x_lowerleft, y_lowerleft,
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