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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "shader.h"
#include <QtConcurrentRun>
#include <QFile>
#include <QVulkanDeviceFunctions>
void Shader::load(QVulkanInstance *inst, VkDevice dev, const QString &fn)
{
reset();
m_maybeRunning = true;
m_future = QtConcurrent::run([inst, dev, fn]() {
ShaderData sd;
QFile f(fn);
if (!f.open(QIODevice::ReadOnly)) {
qWarning("Failed to open %s", qPrintable(fn));
return sd;
}
QByteArray blob = f.readAll();
VkShaderModuleCreateInfo shaderInfo;
memset(&shaderInfo, 0, sizeof(shaderInfo));
shaderInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
shaderInfo.codeSize = blob.size();
shaderInfo.pCode = reinterpret_cast<const uint32_t *>(blob.constData());
VkResult err = inst->deviceFunctions(dev)->vkCreateShaderModule(dev, &shaderInfo, nullptr, &sd.shaderModule);
if (err != VK_SUCCESS) {
qWarning("Failed to create shader module: %d", err);
return sd;
}
return sd;
});
}
ShaderData *Shader::data()
{
if (m_maybeRunning && !m_data.isValid())
m_data = m_future.result();
return &m_data;
}
void Shader::reset()
{
*data() = ShaderData();
m_maybeRunning = false;
}
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