Unit Tests for RenderShader

Note: Only test proper initialization, cleanup and that it matches a frontend
peer. Doesn't that shader loading as this requires a context, surface...

Change-Id: I05f6ef059005b4781b82876a8d73e46d41d44387
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

2 files changed, 20 insertions, 2 deletions

diff --git a/src/render/backend/rendershader.cpp b/src/render/backend/rendershader.cpp
index a19bfd12d..48818615b 100644
--- a/src/render/backend/rendershader.cpp
+++ b/src/render/backend/rendershader.cpp
@@ -54,18 +54,30 @@ RenderShader::RenderShader()
     : QBackendNode()
     , m_program(Q_NULLPTR)
     , m_isLoaded(false)
+    , m_dna(0)
 {
     m_shaderCode.resize(static_cast<int>(QShaderProgram::Compute) + 1);
 }
 
 RenderShader::~RenderShader()
 {
-    cleanup();
+    // TO DO: ShaderProgram is leaked as of now
+    // Fix that taking care that they may be shared given a same dna
 }
 
 void RenderShader::cleanup()
 {
     m_isLoaded = false;
+    m_dna = 0;
+    // TO DO: ShaderProgram is leaked as of now
+    // Fix that taking care that they may be shared given a same dna
+    m_program = Q_NULLPTR;
+    m_uniformsNames.clear();
+    m_attributesNames.clear();
+    m_uniformBlockNames.clear();
+    m_uniforms.clear();
+    m_attributes.clear();
+    m_uniformBlocks.clear();
 }
 
 void RenderShader::updateFromPeer(QNode *peer)
@@ -100,6 +112,11 @@ QVector<QString> RenderShader::uniformBlockNames() const
     return m_uniformBlockNames;
 }
 
+QVector<QByteArray> RenderShader::shaderCode() const
+{
+    return m_shaderCode;
+}
+
 void RenderShader::sceneChangeEvent(const QSceneChangePtr &e)
 {
     if (e->type() == NodeUpdated) {
diff --git a/src/render/backend/rendershader_p.h b/src/render/backend/rendershader_p.h
index bece7be93..d0a4d1e0e 100644
--- a/src/render/backend/rendershader_p.h
+++ b/src/render/backend/rendershader_p.h
@@ -57,7 +57,7 @@ class AttachmentPack;
 
 typedef uint ProgramDNA;
 
-class RenderShader : public QBackendNode
+class Q_AUTOTEST_EXPORT RenderShader : public QBackendNode
 {
 public:
     RenderShader();
@@ -72,6 +72,7 @@ public:
     QVector<QString> uniformsNames() const;
     QVector<QString> attributesNames() const;
     QVector<QString> uniformBlockNames() const;
+    QVector<QByteArray> shaderCode() const;
 
     void sceneChangeEvent(const QSceneChangePtr &e) Q_DECL_OVERRIDE;
     bool isLoaded() const;