From af64f953d4f01a7c7bd3415ff5edfff8d4f7c48d Mon Sep 17 00:00:00 2001
From: Stefan Suhren <suhren.stefan@fh-swf.de>
Date: Tue, 6 Oct 2015 12:52:40 +0200
Subject: Initial commit

---
 src/shaderdebugger.cpp | 103 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 src/shaderdebugger.cpp

(limited to 'src/shaderdebugger.cpp')

diff --git a/src/shaderdebugger.cpp b/src/shaderdebugger.cpp
new file mode 100644
index 0000000..8132654
--- /dev/null
+++ b/src/shaderdebugger.cpp
@@ -0,0 +1,103 @@
+#include "shaderdebugger.h"
+
+bool ShaderDebugger::enabled = false;
+
+ShaderDebugger::ShaderDebugger()
+{
+}
+
+void ShaderDebugger::debugUniforms(int programId)
+{
+    if(!enabled)
+        return;
+#ifdef GLES
+    char name[256];
+    int length;
+    int size;
+    GLenum type;
+    int nUniforms;
+    glGetProgramiv(programId, GL_ACTIVE_UNIFORMS, &nUniforms);
+    for (int i = 0; i < nUniforms; i++)
+    {
+        glGetActiveUniform(programId,
+                           i,
+                           sizeof(name),
+                           &length,
+                           &size,
+                           &type,
+                           name );
+        qDebug("Properties of uniform at index %i : %s", i, name);
+        switch (type)
+        {
+        case GL_FLOAT_MAT3: qDebug("Type : GL_FLOAT_MAT3");break;
+        case GL_FLOAT_MAT4: qDebug("Type : GL_FLOAT_MAT4");break;
+        case GL_FLOAT_VEC2: qDebug("Type : GL_FLOAT_VEC2");break;
+        case GL_FLOAT_VEC3: qDebug("Type : GL_FLOAT_VEC3");break;
+        case GL_FLOAT_VEC4: qDebug("Type : GL_FLOAT_VEC4");break;
+        case GL_FLOAT: qDebug("Type : GL_FLOAT");break;
+        case GL_BOOL: qDebug("Type : GL_BOOL");break;
+        default: qDebug("Type: %i", type);
+        }
+        qDebug("Array size: %i", size);
+        int location = glGetUniformLocation(programId, name);
+        qDebug("Location: %i", location);
+    }
+#else
+    qDebug("ShaderDebugger::debugUniforms works on GLES platforms only.");
+    Q_UNUSED(programId);
+#endif
+}
+
+
+void ShaderDebugger::debugMatrix4x4(const QMatrix4x4 & m, const QString & caption)
+{
+    if(!enabled)
+        return;
+
+    qDebug("%s",qPrintable(caption));
+    for(int row = 0; row < 4; row ++)
+    {
+       QVector4D vRow = m.row(row);
+       QString sRow = QString("  Row %1:  %2\t %3\t%4\t%5")\
+               .arg(row).arg(vRow.x(),4,'g',4).arg(vRow.y(),4,'g',4).arg(vRow.z(),4,'g',4).arg(vRow.w(),4,'g',4);
+       qDebug("%s",qPrintable(sRow));
+    }
+}
+
+void ShaderDebugger::debugMatrix3x3(const QMatrix3x3 & m, const QString & caption)
+{
+    if(!enabled)
+        return;
+
+    QMatrix4x4 m4x4 = QMatrix4x4(m);
+    qDebug("%s",qPrintable(caption));
+    for(int row = 0; row < 3; row ++)
+    {
+       QVector4D vRow = m4x4.row(row);
+       QString sRow = QString("  Row %1:  %2\t %3\t%4")\
+               .arg(row).arg(vRow.x(),4,'g',4).arg(vRow.y(),4,'g',4).arg(vRow.z(),4,'g',4);
+       qDebug("%s",qPrintable(sRow));
+    }
+}
+
+void ShaderDebugger::debugVector4D(const QVector4D & v, const QString & caption)
+{
+    if(!enabled)
+        return;
+
+    QVector4D vRow = v;
+    QString sRow = QString(" %1\t%2\t%3\t%4")\
+            .arg(vRow.x(),4,'g',4).arg(vRow.y(),4,'g',4).arg(vRow.z(),4,'g',4).arg(vRow.w(),4,'g',4);
+    qDebug("%s",qPrintable(caption + sRow));
+}
+
+void ShaderDebugger::debugVector3D(const QVector3D & v, const QString & caption)
+{
+    if(!enabled)
+        return;
+
+    QVector3D vRow = v;
+    QString sRow = QString(" %1\t%2\t%3")\
+            .arg(vRow.x(),4,'g',4).arg(vRow.y(),4,'g',4).arg(vRow.z(),4,'g',4);
+    qDebug("%s",qPrintable(caption + sRow));
+}
-- 
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