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C++: Gate the line by line rendering behind experimental flag

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This commit is contained in:
Olivier Goffart 2024-04-03 17:41:07 +02:00 • committed by Simon Hausmann
parent 48d1b96441
commit 31219223e5
4 changed files with 28 additions and 9 deletions
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20
api/cpp/esp-idf/slint/include/slint-esp.h
View file

@ -15,22 +15,28 @@
* - `size` is the size of the screen
* - `panel` is a handle to the display.
* - `touch` is a handle to the touch screen, if the device has a touch screen
* - `buffer1`, if specified, is a buffer of at least the size of the frame in which the slint scene
* will be drawn. Slint will take care to flush it to the screen
* - `buffer1`, is a buffer of at least the size of the frame in which the slint scene
* will be drawn. Slint will take care to flush it to the screen
* - `buffer2`, if specified, is a second buffer to be used with double buffering,
* both buffer1 and buffer2 should then be obtained with `esp_lcd_rgb_panel_get_frame_buffer`
* - `rotation` applies a transformation while rendering in the buffer
*
* If no buffer1 is specified, Slint assumes that no direct framebuffers are accessible and instead
* will render line-by-line, by allocating a line buffer with MALLOC_CAP_INTERNAL, and flush it to
* the screen with esp_lcd_panel_draw_bitmap.
*/
void slint_esp_init(slint::PhysicalSize size, esp_lcd_panel_handle_t panel,
std::optional<esp_lcd_touch_handle_t> touch,
std::optional<std::span<slint::platform::Rgb565Pixel>> buffer1 = {},
std::span<slint::platform::Rgb565Pixel> buffer1 = {},
std::optional<std::span<slint::platform::Rgb565Pixel>> buffer2 = {}
#ifdef SLINT_FEATURE_EXPERIMENTAL
,
slint::platform::SoftwareRenderer::RenderingRotation rotation = {}
#endif
);
#ifdef SLINT_FEATURE_EXPERIMENTAL
/**
* Same as the other overload but do rendering line-by-line, by allocating a line buffer with
* MALLOC_CAP_INTERNAL, and flush it to the screen with esp_lcd_panel_draw_bitmap. (experimental)
*/
void slint_esp_init(slint::PhysicalSize size, esp_lcd_panel_handle_t panel,
std::optional<esp_lcd_touch_handle_t> touch,
slint::platform::SoftwareRenderer::RenderingRotation rotation = {});
#endif

14
api/cpp/esp-idf/slint/src/slint-esp.cpp
View file

@ -255,6 +255,7 @@ void EspPlatform::run_event_loop()
}
}
}
#ifdef SLINT_FEATURE_EXPERIMENTAL
} else {
std::unique_ptr<slint::platform::Rgb565Pixel, void (*)(void *)> lb(
static_cast<slint::platform::Rgb565Pixel *>(
@ -272,6 +273,7 @@ void EspPlatform::run_event_loop()
esp_lcd_panel_draw_bitmap(panel_handle, line_start, line_y, line_end,
line_y + 1, lb.get());
});
#endif
}
}
@ -313,7 +315,7 @@ TaskHandle_t EspPlatform::task = {};
void slint_esp_init(slint::PhysicalSize size, esp_lcd_panel_handle_t panel,
std::optional<esp_lcd_touch_handle_t> touch,
std::optional<std::span<slint::platform::Rgb565Pixel>> buffer1,
std::span<slint::platform::Rgb565Pixel> buffer1,
std::optional<std::span<slint::platform::Rgb565Pixel>> buffer2
#ifdef SLINT_FEATURE_EXPERIMENTAL
,
@ -328,3 +330,13 @@ void slint_esp_init(slint::PhysicalSize size, esp_lcd_panel_handle_t panel,
#endif
));
}
#ifdef SLINT_FEATURE_EXPERIMENTAL
void slint_esp_init(slint::PhysicalSize size, esp_lcd_panel_handle_t panel,
std::optional<esp_lcd_touch_handle_t> touch,
slint::platform::SoftwareRenderer::RenderingRotation rotation)
{
slint::platform::set_platform(std::make_unique<EspPlatform>(size, panel, touch, std::nullopt,
std::nullopt, rotation));
}
#endif

2
api/cpp/include/slint-platform.h
View file

@ -631,6 +631,7 @@ public:
return PhysicalRegion { r };
}
# ifdef SLINT_FEATURE_EXPERIMENTAL
/// Render the window scene, line by line. The provided Callback will be invoked for each line
/// that needs to rendered.
///
@ -669,7 +670,6 @@ public:
return PhysicalRegion { r };
}
# ifdef SLINT_FEATURE_EXPERIMENTAL
/// This enum describes the rotation that is applied to the buffer when rendering.
/// To be used in set_rendering_rotation()
enum class RenderingRotation {

1
api/cpp/platform.rs
View file

@ -402,6 +402,7 @@ mod software_renderer {
i_slint_core::graphics::euclid::rect(orig.x, orig.y, size.width as i32, size.height as i32)
}
#[cfg(feature = "experimental")]
#[no_mangle]
pub unsafe extern "C" fn slint_software_renderer_render_by_line_rgb565(
r: SoftwareRendererOpaque,