lv_draw_nanovg_private.h

API reference for lv_draw_nanovg_private.h

Summary

Functions

private/draw/nanovg/lv_draw_nanovg_private.h:199function

lv_nanovg_fb_get_image_handle

Get image handle from framebuffer

int lv_nanovg_fb_get_image_handle(struct NVGLUframebuffer *fb)

Name	Type	Description
`fb`	`struct NVGLUframebuffer *`	the framebuffer to get the image handle from

Returns: int — the image handle

private/draw/nanovg/lv_draw_nanovg_private.h:92function

lv_draw_nanovg_3d

Draw 3D texture on a NanoVG context

void lv_draw_nanovg_3d(lv_draw_task_t *t, const lv_draw_3d_dsc_t *dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_3d_dsc_t *`	pointer to a 3D draw descriptor
`coords`	`const lv_area_t *`	the coordinates of the 3D texture

private/draw/nanovg/lv_draw_nanovg_private.h:101function

lv_draw_nanovg_arc

Draw arc on a NanoVG context

void lv_draw_nanovg_arc(lv_draw_task_t *t, const lv_draw_arc_dsc_t *dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_arc_dsc_t *`	pointer to an arc descriptor
`coords`	`const lv_area_t *`	the coordinates of the arc

private/draw/nanovg/lv_draw_nanovg_private.h:109function

lv_draw_nanovg_border

Draw border on a NanoVG context

void lv_draw_nanovg_border(lv_draw_task_t *t, const lv_draw_border_dsc_t *dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_border_dsc_t *`	pointer to a border descriptor
`coords`	`const lv_area_t *`	the coordinates of the border

private/draw/nanovg/lv_draw_nanovg_private.h:117function

lv_draw_nanovg_box_shadow

Draw box on a NanoVG context

void lv_draw_nanovg_box_shadow(lv_draw_task_t *t, const lv_draw_box_shadow_dsc_t *dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_box_shadow_dsc_t *`	pointer to a box descriptor
`coords`	`const lv_area_t *`	the coordinates of the box

private/draw/nanovg/lv_draw_nanovg_private.h:125function

lv_draw_nanovg_fill

Fill a rectangle on a NanoVG context

void lv_draw_nanovg_fill(lv_draw_task_t *t, const lv_draw_fill_dsc_t *dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_fill_dsc_t *`	pointer to a fill descriptor
`coords`	`const lv_area_t *`	the coordinates of the rectangle

private/draw/nanovg/lv_draw_nanovg_private.h:134function

lv_draw_nanovg_image

Draw image on a NanoVG context

void lv_draw_nanovg_image(lv_draw_task_t *t, const lv_draw_image_dsc_t *dsc, const lv_area_t *coords, int image_handle)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_image_dsc_t *`	pointer to an image descriptor
`coords`	`const lv_area_t *`	the coordinates of the image
`image_handle`	`int`	the handle of the image to draw

private/draw/nanovg/lv_draw_nanovg_private.h:141function

lv_draw_nanovg_label_init

Initialize draw label on a NanoVG context

void lv_draw_nanovg_label_init(lv_draw_nanovg_unit_t *u)

Name	Type	Description
`u`	`lv_draw_nanovg_unit_t *`	pointer to a NanoVG unit

private/draw/nanovg/lv_draw_nanovg_private.h:147function

lv_draw_nanovg_label_deinit

Deinitialize draw label on a NanoVG context

void lv_draw_nanovg_label_deinit(lv_draw_nanovg_unit_t *u)

Name	Type	Description
`u`	`lv_draw_nanovg_unit_t *`	pointer to a NanoVG unit

private/draw/nanovg/lv_draw_nanovg_private.h:155function

lv_draw_nanovg_letter

Draw letter on a NanoVG context

void lv_draw_nanovg_letter(lv_draw_task_t *t, const lv_draw_letter_dsc_t *dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_letter_dsc_t *`	pointer to a letter descriptor
`coords`	`const lv_area_t *`	the coordinates of the letter

private/draw/nanovg/lv_draw_nanovg_private.h:163function

lv_draw_nanovg_label

Draw label on a NanoVG context

void lv_draw_nanovg_label(lv_draw_task_t *t, const lv_draw_label_dsc_t *dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_label_dsc_t *`	pointer to a label descriptor
`coords`	`const lv_area_t *`	the coordinates of the label

private/draw/nanovg/lv_draw_nanovg_private.h:171function

lv_draw_nanovg_layer

Draw layer on a NanoVG context

void lv_draw_nanovg_layer(lv_draw_task_t *t, const lv_draw_image_dsc_t *draw_dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`draw_dsc`	`const lv_draw_image_dsc_t *`	pointer to an image descriptor
`coords`	`const lv_area_t *`	the coordinates of the layer

private/draw/nanovg/lv_draw_nanovg_private.h:178function

lv_draw_nanovg_line

Draw line on a NanoVG context

void lv_draw_nanovg_line(lv_draw_task_t *t, const lv_draw_line_dsc_t *dsc)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_line_dsc_t *`	pointer to a line descriptor

private/draw/nanovg/lv_draw_nanovg_private.h:185function

lv_draw_nanovg_triangle

Draw triangle on a NanoVG context

void lv_draw_nanovg_triangle(lv_draw_task_t *t, const lv_draw_triangle_dsc_t *dsc)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_triangle_dsc_t *`	pointer to a triangle descriptor

private/draw/nanovg/lv_draw_nanovg_private.h:192function

lv_draw_nanovg_mask_rect

Draw mask rectangles on a NanoVG context

void lv_draw_nanovg_mask_rect(lv_draw_task_t *t, const lv_draw_mask_rect_dsc_t *dsc)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_mask_rect_dsc_t *`	pointer to a mask descriptor

private/draw/nanovg/lv_draw_nanovg_private.h:205function

lv_draw_nanovg_blur_init

Initialize the blur draw unit state on the given nanovg unit

void lv_draw_nanovg_blur_init(lv_draw_nanovg_unit_t *u)

Name	Type	Description
`u`	`lv_draw_nanovg_unit_t *`	pointer to the nanovg unit

private/draw/nanovg/lv_draw_nanovg_private.h:211function

lv_draw_nanovg_blur_deinit

Deinitialize the blur draw unit state on the given nanovg unit

void lv_draw_nanovg_blur_deinit(lv_draw_nanovg_unit_t *u)

Name	Type	Description
`u`	`lv_draw_nanovg_unit_t *`	pointer to the nanovg unit

private/draw/nanovg/lv_draw_nanovg_private.h:219function

lv_draw_nanovg_blur

Apply a separable gaussian blur to the current layer using a fragment shader

void lv_draw_nanovg_blur(lv_draw_task_t *t, const lv_draw_blur_dsc_t *dsc, const lv_area_t *coords)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_blur_dsc_t *`	pointer to a blur descriptor
`coords`	`const lv_area_t *`	the coordinates of the area to blur

private/draw/nanovg/lv_draw_nanovg_private.h:227function

lv_draw_nanovg_vector

Draw vector graphics on a NanoVG context

void lv_draw_nanovg_vector(lv_draw_task_t *t, const lv_draw_vector_dsc_t *dsc)

Name	Type	Description
`t`	`lv_draw_task_t *`	pointer to a drawing task
`dsc`	`const lv_draw_vector_dsc_t *`	pointer to a vector descriptor

private/draw/nanovg/lv_draw_nanovg_private.h:235function

lv_nanovg_grad_to_paint

Convert a gradient to a paint.

bool lv_nanovg_grad_to_paint(NVGcontext *ctx, const lv_vector_gradient_t *grad, NVGpaint *paint)

Name	Type	Description
`ctx`	`NVGcontext *`	the nanovg context
`grad`	`const lv_vector_gradient_t *`	the gradient descriptor
`paint`	`NVGpaint *`	the paint to store the result

private/draw/nanovg/lv_draw_nanovg_private.h:244function

lv_nanovg_draw_grad

Draw a gradient.

void lv_nanovg_draw_grad(NVGcontext *ctx, const lv_vector_gradient_t *grad, enum NVGwinding winding, enum NVGcompositeOperation composite_operation)

Name	Type	Description
`ctx`	`NVGcontext *`	the nanovg context
`grad`	`const lv_vector_gradient_t *`	the gradient descriptor
`winding`	`enum NVGwinding`	the fill rule
`composite_operation`	`enum NVGcompositeOperation`	the blend mode

private/draw/nanovg/lv_draw_nanovg_private.h:258function

lv_nanovg_draw_grad_helper

Draw a gradient with helper.

void lv_nanovg_draw_grad_helper(NVGcontext *ctx, const lv_area_t *area, const lv_grad_dsc_t *grad_dsc, enum NVGwinding winding, enum NVGcompositeOperation composite_operation)

Name	Type	Description
`ctx`	`NVGcontext *`	the nanovg context
`area`	`const lv_area_t *`	the area to draw the gradient on
`grad_dsc`	`const lv_grad_dsc_t *`	the gradient descriptor
`winding`	`enum NVGwinding`	the fill rule
`composite_operation`	`enum NVGcompositeOperation`	the blend mode

Structs

struct

_lv_draw_nanovg_unit_t

Member	Type	Description
`base_unit`	`lv_draw_unit_t`
`current_layer`	`lv_layer_t *`
`vg`	`NVGcontext *`
`is_started`	`bool`
`image_buf`	`lv_draw_buf_t *`
`image_cache`	`lv_cache_t *`
`image_pending`	`struct _lv_pending_t *`
`image_uncached_pending`	`struct _lv_pending_t *`
`image_drop_ll`	`lv_ll_t`
`image_drop_src`	`const void *`
`letter_cache`	`lv_cache_t *`
`letter_pending`	`struct _lv_pending_t *`
`fbo_cache`	`lv_cache_t *`
`blur_state`	`struct NVGLUblurState *`

Used by 13 functions

lv_nanovg_fbo_cache_init — param u
lv_nanovg_fbo_cache_deinit — param u
lv_nanovg_fbo_cache_get — param u
lv_nanovg_fbo_cache_release — param u
lv_nanovg_image_cache_init — param u
lv_nanovg_image_cache_deinit — param u
lv_nanovg_image_cache_get_handle — param u
lv_nanovg_image_cache_drop — param u
lv_nanovg_utils_init — param u
lv_nanovg_utils_deinit — param u
lv_nanovg_end_frame — param u
lv_nanovg_clean_up — param u
lv_nanovg_reshape_global_image — param u

Typedefs

private/draw/nanovg/lv_draw_nanovg_private.h:79typedef

lv_draw_nanovg_unit_t

typedef struct _lv_draw_nanovg_unit_t lv_draw_nanovg_unit_t

Used by 4 functions

lv_draw_nanovg_label_init — param u
lv_draw_nanovg_label_deinit — param u
lv_draw_nanovg_blur_init — param u
lv_draw_nanovg_blur_deinit — param u

Macros

private/draw/nanovg/lv_draw_nanovg_private.h:44macro

NANOVG_GLES2_IMPLEMENTATION

#define NANOVG_GLES2_IMPLEMENTATION

Dependencies

lvgl_public.h
lv_draw_private.h
lv_area_private.h
nanovg.h

lvgl_private.h

Indirect dependencies

lv_draw_nanovg_private.h

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