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perf(windows): present the canvas through a DXGI flip-model swap chain #330

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8dcd8e6
perf(windows): measure the Direct2D resize step
jhodges10 Aug 12, 2026
ab77da3
feat(windows): create the D3D11/D2D1.1 device stack
jhodges10 Aug 12, 2026
3898465
feat(windows): present through a DXGI flip-model swap chain
jhodges10 Aug 12, 2026
5479979
perf(windows): keep the texture cache across a resize
jhodges10 Aug 12, 2026
1bee799
feat(windows): copy and present only the damaged region
jhodges10 Aug 12, 2026
4018a3d
feat(windows): rebuild the whole stack on device loss
jhodges10 Aug 12, 2026
6e90ea3
test(windows): pin the flip-model invariants, retire the GDI ones
jhodges10 Aug 12, 2026
9de236e
fix(windows): identify surfaces in the GPU profile log
jhodges10 Aug 12, 2026
c150124
perf(windows): allocate swap buffers on a grid, crop them to the window
jhodges10 Aug 12, 2026
7c4aef3
tools(windows): pass app arguments and run the modal drag alone
jhodges10 Aug 12, 2026
69137ce
fix(windows): link flip-model renderer dependencies
jhodges10 Aug 12, 2026
948d39a
fix(scaffold): link flip-model renderer dependencies
jhodges10 Aug 12, 2026
90f4b76
test(windows): timestamp every profile line
jhodges10 Aug 17, 2026
5cf804e
fix(windows): anchor a resized surface's retained image instead of st…
jhodges10 Aug 17, 2026
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8 changes: 7 additions & 1 deletion build.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -1270,7 +1270,7 @@ pub fn build(b: *std.Build) void {
.{ .path = "src/platform/windows/webview2_host.cpp", .pattern = "InvalidateRect(view.hwnd, &info.dirty_rects[index], FALSE)" },
.{ .path = "src/platform/windows/webview2_host.cpp", .pattern = "for (size_t y_index = y0; y_index < y1; ++y_index)" },
.{ .path = "src/platform/windows/webview2_host.cpp", .pattern = "InvalidateRect(view.hwnd, partial_update ? &dirty_pixels : nullptr, FALSE)" },
.{ .path = "src/platform/windows/gpu_surface_renderer.cpp", .pattern = "D2D1_RENDER_TARGET_TYPE_HARDWARE" },
.{ .path = "src/platform/windows/gpu_surface_renderer.cpp", .pattern = "D3D11_CREATE_DEVICE_BGRA_SUPPORT" },
.{ .path = "src/platform/windows/gpu_surface_renderer.cpp", .pattern = "retained_commands_ = std::move(next_retained)" },
.{ .path = "src/platform/windows/gpu_surface_renderer.cpp", .pattern = "PushAxisAlignedClip(d2dRect(requested)" },
.{ .path = "src/platform/windows/gpu_surface_renderer.cpp", .pattern = "const float expansion = effect.spread + blur" },
Expand Down Expand Up @@ -1720,6 +1720,12 @@ pub fn build(b: *std.Build) void {
addExampleTestStep(b, host_cli_exe, native_examples_step, "test-example-service-feed-reader", "Run TypeScript service feed-reader example tests", "examples/service-feed-reader", .managed),
addExampleTestStep(b, host_cli_exe, native_examples_step, "test-example-canvas-preview", "Run canvas preview example tests", "examples/canvas-preview", .managed),
addExampleTestStep(b, host_cli_exe, native_examples_step, "test-example-capabilities", "Run capabilities example tests", "examples/capabilities", .owned),
// Not an example — a measurement fixture (tools/gpu-image-fixture),
// registered here because its whole job is to hold the runtime's
// registered-image ceiling and its tests are what catch that
// ceiling moving out from under it. `scripts/gate.sh fast` already
// maps a tools/ diff to this group, so this is where it belongs.
addExampleTestStep(b, host_cli_exe, native_examples_step, "test-tool-gpu-image-fixture", "Run GPU image fixture limit pins", "tools/gpu-image-fixture", .managed),
};
for (native_example_shard_steps) |shard_step| {
native_examples_step.dependOn(shard_step);
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5 changes: 5 additions & 0 deletions build/app.zig
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Expand Up @@ -2379,7 +2379,12 @@ fn linkPlatform(b: *std.Build, dep: *std.Build.Dependency, target: std.Build.Res
// Retained gpu_surface packets are composited into a hardware
// Direct2D target; DirectWrite draws the engine-measured text
// runs (including registered in-memory fonts) on that target.
// The D2D device sits on a D3D11 device created with
// BGRA_SUPPORT, and reaches the compositor through a DXGI 1.2
// flip-model swap chain -- hence d3d11 and dxgi.
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/browser/build.zig
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Expand Up @@ -287,6 +287,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/capabilities/build.zig
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Expand Up @@ -307,6 +307,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/command-app/build.zig
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Expand Up @@ -304,6 +304,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/hello/build.zig
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Expand Up @@ -304,6 +304,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/native-panels/build.zig
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Expand Up @@ -304,6 +304,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/native-shell/build.zig
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Expand Up @@ -304,6 +304,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/next/build.zig
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Expand Up @@ -352,6 +352,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/react/build.zig
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Expand Up @@ -352,6 +352,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/svelte/build.zig
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Expand Up @@ -352,6 +352,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
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2 changes: 2 additions & 0 deletions examples/vue/build.zig
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Expand Up @@ -352,6 +352,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
Expand Down
2 changes: 2 additions & 0 deletions examples/webview/build.zig
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Expand Up @@ -304,6 +304,8 @@ fn linkPlatform(b: *std.Build, target: std.Build.ResolvedTarget, app_mod: *std.B
app_mod.linkSystemLibrary("user32", .{});
app_mod.linkSystemLibrary("gdi32", .{});
app_mod.linkSystemLibrary("d2d1", .{});
app_mod.linkSystemLibrary("d3d11", .{});
app_mod.linkSystemLibrary("dxgi", .{});
app_mod.linkSystemLibrary("dwrite", .{});
app_mod.linkSystemLibrary("imm32", .{});
app_mod.linkSystemLibrary("comctl32", .{});
Expand Down
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