| 272 | } |
| 273 | |
| 274 | void MapWidget::Build() |
| 275 | { |
| 276 | std::string_view vertexSrc; |
| 277 | std::string_view fragmentSrc; |
| 278 | #if defined(OMIM_OS_LINUX) |
| 279 | vertexSrc = ":common/shaders/gles_300.vsh.glsl"; |
| 280 | fragmentSrc = ":common/shaders/gles_300.fsh.glsl"; |
| 281 | #else |
| 282 | vertexSrc = ":common/shaders/gl_150.vsh.glsl"; |
| 283 | fragmentSrc = ":common/shaders/gl_150.fsh.glsl"; |
| 284 | #endif |
| 285 | |
| 286 | m_program = std::make_unique<QOpenGLShaderProgram>(this); |
| 287 | m_program->addShaderFromSourceFile(QOpenGLShader::Vertex, vertexSrc.data()); |
| 288 | m_program->addShaderFromSourceFile(QOpenGLShader::Fragment, fragmentSrc.data()); |
| 289 | m_program->link(); |
| 290 | |
| 291 | m_vao = std::make_unique<QOpenGLVertexArrayObject>(this); |
| 292 | m_vao->create(); |
| 293 | m_vao->bind(); |
| 294 | |
| 295 | m_vbo = std::make_unique<QOpenGLBuffer>(QOpenGLBuffer::VertexBuffer); |
| 296 | m_vbo->setUsagePattern(QOpenGLBuffer::StaticDraw); |
| 297 | m_vbo->create(); |
| 298 | m_vbo->bind(); |
| 299 | |
| 300 | QVector4D vertices[4] = {QVector4D(-1.0, 1.0, 0.0, 1.0), QVector4D(1.0, 1.0, 1.0, 1.0), |
| 301 | QVector4D(-1.0, -1.0, 0.0, 0.0), QVector4D(1.0, -1.0, 1.0, 0.0)}; |
| 302 | m_vbo->allocate(static_cast<void *>(vertices), sizeof(vertices)); |
| 303 | QOpenGLFunctions * f = QOpenGLContext::currentContext()->functions(); |
| 304 | // 0-index of the buffer is linked to "a_position" attribute in vertex shader. |
| 305 | // Introduced in https://github.com/organicmaps/organicmaps/pull/9814 |
| 306 | f->glEnableVertexAttribArray(0); |
| 307 | f->glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(QVector4D), nullptr); |
| 308 | |
| 309 | m_program->release(); |
| 310 | m_vao->release(); |
| 311 | } |
| 312 | |
| 313 | namespace |
| 314 | { |