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// Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QtTest/QTest>
#include <glresourcemanagers_p.h>
#include <Qt3DCore/qnodeid.h>
#include "qbackendnodetester.h"
#include "testrenderer.h"
class tst_GLShaderManager : public Qt3DCore::QBackendNodeTester
{
Q_OBJECT
private Q_SLOTS:
void adopt();
void lookupResource();
void abandon();
void insertAfterRemoval();
};
void tst_GLShaderManager::adopt()
{
// GIVEN
Qt3DRender::Render::OpenGL::GLShaderManager cache;
Qt3DRender::QShaderProgram frontendShader1;
Qt3DRender::QShaderProgram frontendShader2;
TestRenderer renderer;
Qt3DRender::Render::Shader backendShaderNode1;
Qt3DRender::Render::Shader backendShaderNode2;
backendShaderNode1.setRenderer(&renderer);
backendShaderNode2.setRenderer(&renderer);
simulateInitializationSync(&frontendShader1, &backendShaderNode1);
simulateInitializationSync(&frontendShader2, &backendShaderNode2);
// THEN
QVERIFY(cache.lookupResource(backendShaderNode1.peerId()) == nullptr);
QVERIFY(cache.lookupResource(backendShaderNode2.peerId()) == nullptr);
QVERIFY(backendShaderNode1.peerId() != backendShaderNode2.peerId());
// WHEN
Qt3DRender::Render::OpenGL::GLShader *glShader1 = cache.createOrAdoptExisting(&backendShaderNode1);
// THEN
QVERIFY(glShader1 != nullptr);
std::vector<Qt3DCore::QNodeId> shaderNodeIds = cache.shaderIdsForProgram(glShader1);
QCOMPARE(shaderNodeIds.size(), 1);
QCOMPARE(shaderNodeIds.front(), backendShaderNode1.peerId());
// WHEN
Qt3DRender::Render::OpenGL::GLShader *glShader2 = cache.createOrAdoptExisting(&backendShaderNode2);
// THEN
QCOMPARE(glShader1, glShader2);
shaderNodeIds = cache.shaderIdsForProgram(glShader2);
QCOMPARE(shaderNodeIds.size(), 2);
QCOMPARE(shaderNodeIds.front(), backendShaderNode1.peerId());
QCOMPARE(shaderNodeIds.back(), backendShaderNode2.peerId());
}
void tst_GLShaderManager::lookupResource()
{
// GIVEN
Qt3DRender::Render::OpenGL::GLShaderManager cache;
Qt3DRender::QShaderProgram frontendShader1;
Qt3DRender::QShaderProgram frontendShader2;
TestRenderer renderer;
Qt3DRender::Render::Shader backendShaderNode1;
Qt3DRender::Render::Shader backendShaderNode2;
backendShaderNode1.setRenderer(&renderer);
backendShaderNode2.setRenderer(&renderer);
simulateInitializationSync(&frontendShader1, &backendShaderNode1);
simulateInitializationSync(&frontendShader2, &backendShaderNode2);
// WHEN
cache.createOrAdoptExisting(&backendShaderNode1);
cache.createOrAdoptExisting(&backendShaderNode2);
// THEN
Qt3DRender::Render::OpenGL::GLShader *glShader1 = cache.lookupResource(backendShaderNode1.peerId());
Qt3DRender::Render::OpenGL::GLShader *glShader2 = cache.lookupResource(backendShaderNode2.peerId());
QVERIFY(glShader1 != nullptr);
QCOMPARE(glShader1, glShader2);
const std::vector<Qt3DCore::QNodeId> shaderNodeIds = cache.shaderIdsForProgram(glShader1);
QCOMPARE(shaderNodeIds.size(), 2);
QVERIFY(std::find(shaderNodeIds.begin(),
shaderNodeIds.end(),
frontendShader1.id()) != shaderNodeIds.end());
QVERIFY(std::find(shaderNodeIds.begin(),
shaderNodeIds.end(),
frontendShader2.id()) != shaderNodeIds.end());
}
void tst_GLShaderManager::abandon()
{
// GIVEN
Qt3DRender::Render::OpenGL::GLShaderManager cache;
Qt3DRender::QShaderProgram frontendShader1;
Qt3DRender::QShaderProgram frontendShader2;
TestRenderer renderer;
Qt3DRender::Render::Shader backendShaderNode1;
Qt3DRender::Render::Shader backendShaderNode2;
backendShaderNode1.setRenderer(&renderer);
backendShaderNode2.setRenderer(&renderer);
simulateInitializationSync(&frontendShader1, &backendShaderNode1);
simulateInitializationSync(&frontendShader2, &backendShaderNode2);
cache.createOrAdoptExisting(&backendShaderNode1);
cache.createOrAdoptExisting(&backendShaderNode2);
// WHEN
Qt3DRender::Render::OpenGL::GLShader *glShader = cache.lookupResource(backendShaderNode1.peerId());
cache.abandon(glShader, &backendShaderNode1);
// THEN
std::vector<Qt3DCore::QNodeId> shaderNodeIds = cache.shaderIdsForProgram(glShader);
QVERIFY(cache.takeAbandonned().empty());
QCOMPARE(shaderNodeIds.size(), 1);
QCOMPARE(shaderNodeIds.front(), backendShaderNode2.peerId());
// WHEN
cache.abandon(glShader, &backendShaderNode2);
// THEN
shaderNodeIds = cache.shaderIdsForProgram(glShader);
QCOMPARE(shaderNodeIds.size(), 0);
const std::vector<Qt3DRender::Render::OpenGL::GLShader *> releasedShaders = cache.takeAbandonned();
QCOMPARE(releasedShaders.size(), 1);
QCOMPARE(releasedShaders.front(), glShader);
}
void tst_GLShaderManager::insertAfterRemoval()
{
// GIVEN
Qt3DRender::Render::OpenGL::GLShaderManager cache;
Qt3DRender::QShaderProgram frontendShader;
TestRenderer renderer;
Qt3DRender::Render::Shader backendShaderNode;
backendShaderNode.setRenderer(&renderer);
simulateInitializationSync(&frontendShader, &backendShaderNode);
// WHEN
Qt3DRender::Render::OpenGL::GLShader *apiShader1 = cache.createOrAdoptExisting(&backendShaderNode);
const Qt3DRender::Render::OpenGL::GLShader *originalApiShader = apiShader1;
// THEN
auto apiShader2 = cache.lookupResource(frontendShader.id());
QVERIFY(apiShader1 != nullptr);
QVERIFY(apiShader2 != nullptr);
QVERIFY(apiShader1 == originalApiShader);
QVERIFY(apiShader1 == apiShader2);
// WHEN
cache.abandon(apiShader1, &backendShaderNode);
// THEN
Qt3DRender::Render::OpenGL::GLShader *apiShaderEmpty = cache.lookupResource(frontendShader.id());
QVERIFY(apiShaderEmpty == nullptr);
// WHEN
apiShader1 = cache.createOrAdoptExisting(&backendShaderNode);
cache.purge();
apiShader2 = cache.lookupResource(frontendShader.id());
// THEN
QVERIFY(apiShader1 != nullptr);
QVERIFY(apiShader2 != nullptr);
QVERIFY(apiShader1 == apiShader2);
QVERIFY(apiShader2 == originalApiShader);
}
QTEST_APPLESS_MAIN(tst_GLShaderManager)
#include "tst_glshadermanager.moc"
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