minigpu 1.5.7

A library that brings multiplatform GPU compute to Dart and Flutter by wrapping the gpu.cpp library and webgpu with a Dawn backend.

minigpu

1.5.7

1.5.6

• New statics Minigpu.preferDisplayAdapter([enable]) and Minigpu.selectedAdapterName: pre-init hint that binds Dawn to the adapter driving the PRIMARY display (Windows) so screen capture, GPU processing and HW encode share one GPU (same-adapter zero-copy) on hybrid systems, and a query for which adapter Dawn actually selected. Call the hint before any minigpu use; MGPU_ADAPTER_NAME still overrides.

1.5.5

1.5.4

• fix release version pins

1.5.3

• Add async shared-output-texture copy: SharedOutputTexture.copyFromBufferAsync and VideoTexture.bgraToRgbaSharedOutputAsync. These run the GPU copy and the cross-device present sync on minigpu's WebGPU worker thread and complete a Future when finished, instead of busy-polling the present-wait on the calling isolate — removing the dominant per-frame blocking cost on the shared-output (zero-copy encode) path. The synchronous copyFromBuffer / bgraToRgbaSharedOutput are unchanged.

1.5.2

• Add Minigpu.copyBuffer(src, dst, {required int elementCount}): GPU-side buffer-to-buffer copy using a WGSL compute shader — no CPU round-trip. The copy shader (64-element workgroup, array<u32> storage bindings) is created once per Minigpu instance on first call and reused for all subsequent calls. Non-multiple-of-64 element counts are handled correctly via an arrayLength guard in the shader.
• Minigpu.onShaderDestroyed now nulls the cached copy-shader reference when that shader is destroyed, preventing a double-destroy if destroyAllTrackedShaders() is called before destroy().
• Minigpu.destroy() explicitly tears down the cached copy shader before releasing the Dawn context.
• New test suite test/minigpu_copy_buffer_test.dart: 14 tests covering correctness (u32, f32, bit-pattern sentinel), partial copy, workgroup boundary alignment, shader reuse, and liveShaderCount / liveBufferCount stability.

1.5.1

• fix frame wait and timeouts

1.5.0

• Fix handle issue, release 1.5.0

1.4.15

• fix fallback paths

1.4.14

• fix Tier C

1.4.12

• fix texture path

1.4.11

• fixing build hook

1.4.9

• tryfix central dawn location

1.4.8

• fixes texture path on windows, fixes texture view on web

1.4.7

• Fixes logger characters

1.4.6

• fix garbled adapter name in logs: WGPUStringView.data is not null-terminated, copy to std::string before passing to snprintf
• fix garbled adapter name in logs: WGPUStringView.data is not null-terminated, copy to std::string before passing to snprintf

1.4.5

• fix Dawn built inside pub-cache instead of system dir: pass DAWN_DIR from Dart hook as cmake -D define so cmake subprocess inherits the correct path regardless of env; fix FETCHCONTENT_BASE_DIR pointing to pub-cache (now uses cmake binary dir)
• add Minigpu.setLogCallback / setLogLevel: routes native Dawn/GPU log lines through a Dart callback (NativeCallable.listener); mgpuSetLogCallback + mgpuSetLogLevel exported from C layer; all stderr calls in minigpu_external.cpp replaced with structured LOG_ERROR/INFO/WARN/DEBUG macros

1.4.4

• fix FormatException on non-UTF-8 bytes in setLogCallback: use Utf8Decoder(allowMalformed: true) instead of toDartString()

1.4.3

• improve adapter selection to prefer discrete GPU using dawn native EnumerateAdapters; fixes incorrect adapter picked on Optimus laptops

1.4.2

• fixes dawn library not being found

1.4.1

• added bindings observer

1.4.0

• adds minigpu_view, gpu_pipeline libraries
• adds Minigpu.destroySync() for use in synchronous hot-reload teardown hooks (e.g. MinigpuBinding from minigpu_flutter)

1.3.0

• Adds Texture Sharing

1.2.4-WIP

• working on texture imports

1.2.3

• adds VRAM API
• fixes memleaks and broken tests

1.2.2

• fixes memleaks and broken tests

1.2.1

• Fix: fresh builds need dawn find off
• Change: 1.2.0 migrates minigpu to direct webgpu usage
• Breaking: Changed setData and references to .write
• Fix: broken compute shader and buffer finalizers

1.2.0

1.1.9

• fix pubspec version issue

1.1.8

• fixed concurrent buffer op crash

1.1.6

• fixed problem with audio input capture providing raw data

1.1.5

• Refactored example
• Various fixes
• Updated native assets to code assets
• Memory problems fixed on web and ffi

1.1.3

• breaking: import package instead of buffer and shader separately
• fix: pubspec repository url
• adds: tensor package protoype
• fix: issue with reading buffer segments fixed

1.1.2

• fix: create dawn dir to prevent first run error.

1.1.1

• fix: split download command for quiet fail on remote add

1.1.0

• fix: dawn git not running properly

1.0.9

• fix: prevent using project root on ffi since pub wont see the file

1.0.8

• fix: pub.dev still missing project root file

1.0.7

• fix: project root file missing

1.0.6

• fix: minigpu_ffi must also use flutter in pubspec or pub.dev analysis fails
• fix: issue with project root finding as package

1.0.5

• fix: must have flutter in pubspec or pub.dev analysis fails

1.0.4

• fix: updates to readme

1.0.3

• fix: remove flutter from package pubspec.yaml
• fix: updates to readme

1.0.2

• new: explicity set supported platforms in pubspec.yaml for pub.dev

1.0.1

• breaking: Uses dart native assets see updated readme.
• implements platform stub for native assets to coexist with flutter plugins.
• uses native_toolchain_cmake 0.0.4

1.0.0

• Initial version.