| 110 | } |
| 111 | |
| 112 | void YACReaderFlow3D::initialize(QRhiCommandBuffer *cb) |
| 113 | { |
| 114 | auto newRhi = rhi(); |
| 115 | if (m_rhi != newRhi) { |
| 116 | scene.reset(); |
| 117 | m_rhi = newRhi; |
| 118 | } |
| 119 | |
| 120 | if (m_rhi == nullptr) |
| 121 | return; |
| 122 | |
| 123 | // Helper to get or create resource update batch |
| 124 | auto getResourceBatch = [this]() { |
| 125 | if (scene.resourceUpdates == nullptr) |
| 126 | scene.resourceUpdates = m_rhi->nextResourceUpdateBatch(); |
| 127 | return scene.resourceUpdates; |
| 128 | }; |
| 129 | |
| 130 | // Initialize default texture from image |
| 131 | if (!scene.defaultTexture) { |
| 132 | QImage defaultImage = QImage(":/images/defaultCover.png").convertToFormat(QImage::Format_RGBA8888); |
| 133 | |
| 134 | scene.defaultTexture.reset(m_rhi->newTexture(QRhiTexture::RGBA8, defaultImage.size(), 1, QRhiTexture::MipMapped | QRhiTexture::UsedWithGenerateMips)); |
| 135 | scene.defaultTexture->create(); |
| 136 | getResourceBatch()->uploadTexture(scene.defaultTexture.get(), defaultImage); |
| 137 | getResourceBatch()->generateMips(scene.defaultTexture.get()); |
| 138 | qDebug() << "YACReaderFlow3D: Created defaultTexture" << defaultImage.size(); |
| 139 | } |
| 140 | |
| 141 | if (ribbonTexturesDirty || (!readRibbonImage.isNull() && !scene.markTexture) || (!readingRibbonImage.isNull() && !scene.readingTexture)) |
| 142 | syncRibbonTextures(getResourceBatch()); |
| 143 | |
| 144 | // Create vertex buffer (quad geometry) |
| 145 | if (!scene.vertexBuffer) { |
| 146 | // Use a triangle list (two triangles = 6 vertices) because some RHI backends |
| 147 | // don't support TriangleFan. Each vertex: x,y,z,u,v (5 floats). |
| 148 | scene.vertexBuffer.reset(m_rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, 6 * 5 * sizeof(float))); |
| 149 | scene.vertexBuffer->create(); |
| 150 | |
| 151 | // Two triangles forming a quad (triangle list): |
| 152 | // Tri 1: bottom-left, bottom-right, top-right |
| 153 | // Tri 2: bottom-left, top-right, top-left |
| 154 | float vertices[] = { |
| 155 | // Position (x, y, z), TexCoord (u, v) |
| 156 | -0.5f, -0.5f, 0.0f, 0.0f, 1.0f, // Bottom-left |
| 157 | 0.5f, -0.5f, 0.0f, 1.0f, 1.0f, // Bottom-right |
| 158 | 0.5f, 0.5f, 0.0f, 1.0f, 0.0f, // Top-right |
| 159 | |
| 160 | -0.5f, -0.5f, 0.0f, 0.0f, 1.0f, // Bottom-left |
| 161 | 0.5f, 0.5f, 0.0f, 1.0f, 0.0f, // Top-right |
| 162 | -0.5f, 0.5f, 0.0f, 0.0f, 0.0f // Top-left |
| 163 | }; |
| 164 | |
| 165 | getResourceBatch()->uploadStaticBuffer(scene.vertexBuffer.get(), vertices); |
| 166 | } |
| 167 | |
| 168 | // Initialize alignment for uniform buffers |
| 169 | if (scene.alignedUniformSize == 0) { |