Add two utility matrix functions.

The first returns the number of components in a matrix column/row, and the second the number of columns/rows in matrix uniforms. TRAC #23083 Signed-off-by: Nicolas Capens Signed-off-by: Shannon Woods Authored-by: Jamie Madill

Add two utility matrix functions.
8c6befc2 · Jamie Madill · Shannon Woods · 1566ef70 · 8c6befc2 · 8c6befc2
Commit 8c6befc2 authored Jun 20, 2013 by Jamie Madill Committed by Shannon Woods Jul 19, 2013
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utilities.cpp src/common/utilities.cpp +12 -0

utilities.h src/common/utilities.h +2 -0

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--- a/src/common/utilities.cpp
+++ b/src/common/utilities.cpp
@@ -270,6 +270,18 @@ GLenum TransposeMatrixType(GLenum type)
    }
 }

+int MatrixRegisterCount(GLenum type, bool isRowMajorMatrix)
+{
+    ASSERT(IsMatrixType(type));
+    return isRowMajorMatrix ? VariableRowCount(type) : VariableColumnCount(type);
+}
+
+int MatrixComponentCount(GLenum type, bool isRowMajorMatrix)
+{
+    ASSERT(IsMatrixType(type));
+    return isRowMajorMatrix ? VariableColumnCount(type) : VariableRowCount(type);
+}
+
 int AttributeRegisterCount(GLenum type)
 {
    return IsMatrixType(type) ? VariableColumnCount(type) : 1;

--- a/src/common/utilities.h
+++ b/src/common/utilities.h
@@ -33,6 +33,8 @@ int VariableColumnCount(GLenum type);
 bool IsMatrixType(GLenum type);
 GLenum TransposeMatrixType(GLenum type);
 int AttributeRegisterCount(GLenum type);
+int MatrixRegisterCount(GLenum type, bool isRowMajorMatrix);
+int MatrixComponentCount(GLenum type, bool isRowMajorMatrix);

 int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize);