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50
51#include "shader.h"
52#include <QtConcurrentRun>
53#include <QFile>
54#include <QVulkanDeviceFunctions>
55
56void Shader::load(QVulkanInstance *inst, VkDevice dev, const QString &fn)
57{
58 reset();
59 m_maybeRunning = true;
60 m_future = QtConcurrent::run([inst, dev, fn]() {
61 ShaderData sd;
62 QFile f(fn);
63 if (!f.open(QIODevice::ReadOnly)) {
64 qWarning("Failed to open %s", qPrintable(fn));
65 return sd;
66 }
67 QByteArray blob = f.readAll();
68 VkShaderModuleCreateInfo shaderInfo;
69 memset(&shaderInfo, 0, sizeof(shaderInfo));
70 shaderInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
71 shaderInfo.codeSize = blob.size();
72 shaderInfo.pCode = reinterpret_cast<const uint32_t *>(blob.constData());
73 VkResult err = inst->deviceFunctions(dev)->vkCreateShaderModule(dev, &shaderInfo, nullptr, &sd.shaderModule);
74 if (err != VK_SUCCESS) {
75 qWarning("Failed to create shader module: %d", err);
76 return sd;
77 }
78 return sd;
79 });
80}
81
82ShaderData *Shader::data()
83{
84 if (m_maybeRunning && !m_data.isValid())
85 m_data = m_future.result();
86
87 return &m_data;
88}
89
90void Shader::reset()
91{
92 *data() = ShaderData();
93 m_maybeRunning = false;
94}
95