Load only the shaders which match the rendering API

Change-Id: I94a14e714c2c7da850c6a2ee624ff191ef9715fc
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 13 insertions, 6 deletions

diff --git a/src/render/backend/renderer.cpp b/src/render/backend/renderer.cpp
index 58cc4c483..eb65984c9 100644
--- a/src/render/backend/renderer.cpp
+++ b/src/render/backend/renderer.cpp
@@ -760,12 +760,19 @@ void Renderer::updateGLResources()
         }
     }
 
-    const QVector<HShader> activeShaderHandles = m_nodesManager->shaderManager()->activeHandles();
-    for (HShader handle: activeShaderHandles) {
-        Shader *shader = m_nodesManager->shaderManager()->data(handle);
-        if (!shader->isLoaded()) {
-            // Compile shader
-            m_graphicsContext->loadShader(shader);
+    const QVector<HTechnique> activeTechniques = m_nodesManager->techniqueManager()->activeHandles();
+    for (HTechnique techniqueHandle : activeTechniques) {
+        Technique *technique = m_nodesManager->techniqueManager()->data(techniqueHandle);
+        // If api of the renderer matches the one from the technique
+        if (*contextInfo() == *technique->graphicsApiFilter()) {
+            const auto passIds = technique->renderPasses();
+            for (const QNodeId passId : passIds) {
+                RenderPass *renderPass = m_nodesManager->renderPassManager()->lookupResource(passId);
+                HShader shaderHandle = m_nodesManager->shaderManager()->lookupHandle(renderPass->shaderProgram());
+                Shader *shader = m_nodesManager->shaderManager()->data(shaderHandle);
+                if (shader != nullptr && !shader->isLoaded())
+                    m_graphicsContext->loadShader(shader);
+            }
         }
     }