diff options
| -rw-r--r-- | src/gui/rhi/qrhimetal.mm | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/src/gui/rhi/qrhimetal.mm b/src/gui/rhi/qrhimetal.mm index 56bb4815b9..e02ab9a278 100644 --- a/src/gui/rhi/qrhimetal.mm +++ b/src/gui/rhi/qrhimetal.mm @@ -2682,6 +2682,15 @@ void QRhiMetal::enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdate QMetalCommandBuffer *cbD = QRHI_RES(QMetalCommandBuffer, cb); QRhiResourceUpdateBatchPrivate *ud = QRhiResourceUpdateBatchPrivate::get(resourceUpdates); + id<MTLBlitCommandEncoder> blitEnc = nil; + auto ensureBlit = [&blitEnc, cbD, this]() { + if (!blitEnc) { + blitEnc = [cbD->d->cb blitCommandEncoder]; + if (debugMarkers) + [blitEnc pushDebugGroup: @"Texture upload/copy"]; + } + }; + for (int opIdx = 0; opIdx < ud->activeBufferOpCount; ++opIdx) { const QRhiResourceUpdateBatchPrivate::BufferOp &u(ud->bufferOps[opIdx]); if (u.type == QRhiResourceUpdateBatchPrivate::BufferOp::DynamicUpdate) { @@ -2720,19 +2729,17 @@ void QRhiMetal::enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdate readback.readSize = u.readSize; readback.result = u.result; d->activeBufferReadbacks.append(readback); +#ifdef Q_OS_MACOS + if (bufD->d->managed) { + // On non-Apple Silicon, manually synchronize memory from GPU to CPU + ensureBlit(); + [blitEnc synchronizeResource:readback.buf]; + } +#endif } } } - id<MTLBlitCommandEncoder> blitEnc = nil; - auto ensureBlit = [&blitEnc, cbD, this] { - if (!blitEnc) { - blitEnc = [cbD->d->cb blitCommandEncoder]; - if (debugMarkers) - [blitEnc pushDebugGroup: @"Texture upload/copy"]; - } - }; - for (int opIdx = 0; opIdx < ud->activeTextureOpCount; ++opIdx) { const QRhiResourceUpdateBatchPrivate::TextureOp &u(ud->textureOps[opIdx]); if (u.type == QRhiResourceUpdateBatchPrivate::TextureOp::Upload) { |