mtl: float tex.upload

src/rhi/qrhimetal.mm

@@ -1261,6 +1261,35 @@ void QRhiMetal::enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdate
                           options: MTLBlitOptionNone];
 
                         curOfs += aligned(fullImageSizeBytes, texbufAlign);
+                    } else if (!rawData.isEmpty() && isFloatFormat(utexD->m_format)) {
+                        const QSize subresSize = q->sizeForMipLevel(level, utexD->m_pixelSize);
+                        const int subresw = subresSize.width();
+                        const int subresh = subresSize.height();
+                        int w, h;
+                        if (mipDesc.sourceSize().isEmpty()) {
+                            w = subresw;
+                            h = subresh;
+                        } else {
+                            w = mipDesc.sourceSize().width();
+                            h = mipDesc.sourceSize().height();
+                        }
+
+                        quint32 bpl = 0;
+                        textureFormatInfo(utexD->m_format, QSize(w, h), &bpl, nullptr);
+                        memcpy(reinterpret_cast<char *>(mp) + curOfs, rawData.constData(), rawData.size());
+
+                        [blitEnc copyFromBuffer: utexD->d->stagingBuf[currentFrameSlot]
+                                                 sourceOffset: curOfs
+                                                 sourceBytesPerRow: bpl
+                                                 sourceBytesPerImage: 0
+                                                 sourceSize: MTLSizeMake(w, h, 1)
+                          toTexture: utexD->d->tex
+                          destinationSlice: layer
+                          destinationLevel: level
+                          destinationOrigin: MTLOriginMake(dp.x(), dp.y(), 0)
+                          options: MTLBlitOptionNone];
+
+                        curOfs += aligned(rawData.size(), texbufAlign);
                     } else if (!rawData.isEmpty() && isCompressedFormat(utexD->m_format)) {
                         const QSize subresSize = q->sizeForMipLevel(level, utexD->m_pixelSize);
                         const int subresw = subresSize.width();
@@ -1299,6 +1328,8 @@ void QRhiMetal::enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdate
                           options: MTLBlitOptionNone];
 
                         curOfs += aligned(rawData.size(), texbufAlign);
+                    } else {
+                        qWarning("Invalid texture upload for %p layer=%d mip=%d", utexD, layer, level);
                     }
                 }
             }