2022-05-10 10:06:48 +00:00
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// Copyright (C) 2017 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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2017-03-24 13:54:24 +00:00
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#include "shader.h"
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#include <QtConcurrentRun>
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#include <QFile>
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#include <QVulkanDeviceFunctions>
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void Shader::load(QVulkanInstance *inst, VkDevice dev, const QString &fn)
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{
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reset();
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m_maybeRunning = true;
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m_future = QtConcurrent::run([inst, dev, fn]() {
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ShaderData sd;
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QFile f(fn);
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if (!f.open(QIODevice::ReadOnly)) {
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qWarning("Failed to open %s", qPrintable(fn));
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return sd;
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}
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QByteArray blob = f.readAll();
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VkShaderModuleCreateInfo shaderInfo;
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memset(&shaderInfo, 0, sizeof(shaderInfo));
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shaderInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
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shaderInfo.codeSize = blob.size();
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shaderInfo.pCode = reinterpret_cast<const uint32_t *>(blob.constData());
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VkResult err = inst->deviceFunctions(dev)->vkCreateShaderModule(dev, &shaderInfo, nullptr, &sd.shaderModule);
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if (err != VK_SUCCESS) {
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qWarning("Failed to create shader module: %d", err);
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return sd;
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}
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return sd;
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});
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}
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ShaderData *Shader::data()
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{
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if (m_maybeRunning && !m_data.isValid())
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m_data = m_future.result();
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return &m_data;
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}
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void Shader::reset()
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{
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*data() = ShaderData();
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m_maybeRunning = false;
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}
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