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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "Qt3DSRenderTestClear.h"
#include "foundation/Qt3DSVec4.h"
using namespace qt3ds;
using namespace qt3ds::render;
NVRenderTestClear::NVRenderTestClear()
{
}
NVRenderTestClear::~NVRenderTestClear()
{
}
bool NVRenderTestClear::isSupported(NVRenderContext *context)
{
return true;
}
////////////////////////////////
// test for functionality
////////////////////////////////
static bool checkColor(int width, int height, unsigned char *pixels, const QT3DSVec3 &color)
{
unsigned char *pSrc = pixels;
for (int h = 0; h < height; h++) {
for (int w = 0; w < width; w++) {
if (pSrc[0] != (unsigned char)color.x || pSrc[1] != (unsigned char)color.y
|| pSrc[2] != (unsigned char)color.z) {
return false;
}
pSrc += 3;
}
}
return true;
}
bool NVRenderTestClear::run(NVRenderContext *context, userContextData *pUserData)
{
bool success = true;
success &= testColorClear(context, pUserData);
// if successfull draw green otherwise a red
if (success) {
// set clear color to green
context->SetClearColor(QT3DSVec4(0.0f, 1.0f, .0f, 1.f));
context->Clear(NVRenderClearFlags(NVRenderClearValues::Color));
} else {
// set clear color to green
context->SetClearColor(QT3DSVec4(1.0f, .0f, .0f, 1.f));
context->Clear(NVRenderClearFlags(NVRenderClearValues::Color));
}
return success;
}
bool NVRenderTestClear::testColorClear(NVRenderContext *context, userContextData *pUserData)
{
// allocate buffer for readback
NVAllocatorCallback &alloc(context->GetFoundation().getAllocator());
QT3DSU32 size = pUserData->winHeight * pUserData->winHeight * 3 * sizeof(QT3DSU8);
QT3DSU8 *pixels = (QT3DSU8 *)alloc.allocate(size, "testColorClear color clear", __FILE__, __LINE__);
if (!pixels)
return false;
// set clear color to yellow
context->SetClearColor(QT3DSVec4(1.0f, 1.0f, .0f, 0.f));
context->Clear(NVRenderClearFlags(NVRenderClearValues::Color));
// read back pixels
context->ReadPixels(NVRenderRect(0, 0, pUserData->winHeight, pUserData->winHeight),
NVRenderReadPixelFormats::RGB8, NVDataRef<QT3DSU8>(pixels, size));
// check color
bool passed =
checkColor(pUserData->winHeight, pUserData->winHeight, pixels, QT3DSVec3(255.0f, 255.0f, .0f));
alloc.deallocate(pixels);
return passed;
}
////////////////////////////////
// performance test
////////////////////////////////
bool NVRenderTestClear::runPerformance(NVRenderContext *context, userContextData *pUserData)
{
return true;
}
////////////////////////////////
// test cleanup
////////////////////////////////
void NVRenderTestClear::cleanup(NVRenderContext *context, userContextData *pUserData)
{
context->SetClearColor(QT3DSVec4(0.0f, .0f, .0f, 0.f));
}
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