Add support for querying number of active uniform blocks/block name max length from a program object.
TRAC #22858
Signed-off-by: Geoff Lang
Signed-off-by: Nicolas Capens
Author: Jamie Madill
git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2311 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/ProgramBinary.cpp b/src/libGLESv2/ProgramBinary.cpp
index ee89f84..33fb108 100644
--- a/src/libGLESv2/ProgramBinary.cpp
+++ b/src/libGLESv2/ProgramBinary.cpp
@@ -2421,6 +2421,28 @@
return mUniformBlocks.size();
}
+GLuint ProgramBinary::getActiveUniformBlockMaxLength() const
+{
+ unsigned int maxLength = 0;
+
+ unsigned int numUniformBlocks = mUniformBlocks.size();
+ for (unsigned int uniformBlockIndex = 0; uniformBlockIndex < numUniformBlocks; uniformBlockIndex++)
+ {
+ const UniformBlock &uniformBlock = *mUniformBlocks[uniformBlockIndex];
+ if (!uniformBlock.name.empty())
+ {
+ const unsigned int length = uniformBlock.name.length() + 1;
+
+ // Counting in "[0]".
+ const unsigned int arrayLength = (uniformBlock.isArrayElement() ? 3 : 0);
+
+ maxLength = std::max(length + arrayLength, maxLength);
+ }
+ }
+
+ return maxLength;
+}
+
void ProgramBinary::validate(InfoLog &infoLog)
{
applyUniforms();