# DrawYuiPresentedLinearImageRegionV1

Production cache-first entry point for the legacy native-nearest bridge. Exact tint, opacity, destination composition, and filtering are already baked into the prepared opaque texels, so the native draw remains white and fully opaque and cannot accidentally blend the result a second time.

Last updated: 2026-09-09

Package: frontend.yui | Status: source-declared

Tags: cpu, frontend, frontend.yui, function, source-example, yeho, yui

Turn YUI models into a working frontend and its rendering/input adapters.

```yh
external DrawYuiPresentedLinearImageRegionV1(yuiRenderImageResource image, yuiRenderImagePresentation presentation, yuiRenderBounds sourceBounds, yuiRenderBounds destinationBounds, text resourceSlot, graphicsImageRgb8V1 tint, int opacity, graphicsImageRgba8V1 destinationPixel, text destinationContentIdentity, text source) returns bool
```


## Use DrawYuiPresentedLinearImageRegionV1

A complete small caller. Values are illustrative; check the returned result and package requirements before connecting live resources.

Verification: type checked

```yh
using frontend.yui

// Turn YUI models into a working frontend and its rendering/input adapters.
yuiRenderImageResource image = yuiRenderImageResource("id", "kind", 1, 1, 1, 4, "png", "color Space", "alpha Mode", "state", true, "sample", "payload Hex", "example")
yuiRenderImagePresentation presentation = yuiRenderImagePresentation("fit", 1, 1, 1, 1, 1, 1, 1, 1)
yuiRenderBounds sourceBounds = yuiRenderBounds(1, 1, 1, 1)
yuiRenderBounds destinationBounds = yuiRenderBounds(1, 1, 1, 1)
text resourceSlot = "resource Slot"
graphicsImageRgb8V1 tint = graphicsImageRgb8V1(1, 1, 1)
int opacity = 1
graphicsImageRgba8V1 destinationPixel = graphicsImageRgba8V1(1, 1, 1, 1)
text destinationContentIdentity = "destination Content Identity"
text source = "example"
bool result = DrawYuiPresentedLinearImageRegionV1(image, presentation, sourceBounds, destinationBounds, resourceSlot, tint, opacity, destinationPixel, destinationContentIdentity, source)
Console.Log(Text.From(result))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.frontend_yui__drawyuipresentedlinearimageregionv1"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "frontend.yui"
version = "0.2.0"
path = "../../../yeho/packages/frontend/yui"

[[dependencies]]
package = "graphics.canvas"
version = "0.1.0"
path = "../../../yeho/packages/graphics/canvas"

[[dependencies]]
package = "graphics.image"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image"

[[dependencies]]
package = "graphics.image.processing"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image/processing"

[[dependencies]]
package = "graphics.text"
version = "0.1.0"
path = "../../../yeho/packages/graphics/text"

[[dependencies]]
package = "host.ui_services"
version = "0.1.0"
path = "../../../yeho/packages/host/ui_services"

[[dependencies]]
package = "input.text"
version = "0.1.0"
path = "../../../yeho/packages/input/text"

[[dependencies]]
package = "ui"
version = "0.2.0"
path = "../../../yeho/packages/ui"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/frontend.yui--DrawYuiPresentedLinearImageRegionV1/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


Package presence and a declaration do not establish support on every host. Host services need their platform and lifecycle setup.

Source: yeho/packages/frontend/yui/render-image_sampling.yh

AI training permission: https://demonhunterlabs.com/ai-use