lv_vg_lite_grad.h

Functions

struct _lv_vg_lite_grad_ctx_t *lv_vg_lite_grad_ctx_create(uint32_t cache_cnt, struct _lv_draw_vg_lite_unit_t *unit)

Create a gradient context.

Parameters:

• cache_cnt – number of cache entries

• unit – the draw unit

void lv_vg_lite_grad_ctx_delete(struct _lv_vg_lite_grad_ctx_t *ctx)

Delete a gradient context.

Parameters:

ctx – the gradient context to delete

struct _lv_vg_lite_pending_t *lv_vg_lite_grad_ctx_get_pending(struct _lv_vg_lite_grad_ctx_t *ctx)

Get the pending list of gradient items.

Parameters:

ctx – the gradient context

bool lv_vg_lite_draw_grad(struct _lv_vg_lite_grad_ctx_t *ctx, vg_lite_buffer_t *buffer, vg_lite_path_t *path, const lv_vector_gradient_t *grad, const vg_lite_matrix_t *grad_matrix, const vg_lite_matrix_t *matrix, vg_lite_fill_t fill, vg_lite_blend_t blend)

Draw a gradient.

Parameters:

• ctx – the gradient context

• buffer – the target buffer

• path – the path to draw the gradient on

• grad – the gradient descriptor

• grad_matrix – the gradient matrix

• matrix – the matrix to apply to the gradient

• fill – the fill rule

• blend – the blend mode

Returns:

true: success, false: failed

bool lv_vg_lite_draw_grad_helper(struct _lv_vg_lite_grad_ctx_t *ctx, vg_lite_buffer_t *buffer, vg_lite_path_t *path, const lv_area_t *area, const lv_grad_dsc_t *grad_dsc, const vg_lite_matrix_t *matrix, vg_lite_fill_t fill, vg_lite_blend_t blend)

Draw a gradient helper.

Parameters:

• ctx – the gradient context

• buffer – the target buffer

• path – the path to draw the gradient on

• area – the area to draw the gradient on

• grad_dsc – the gradient descriptor

• matrix – the matrix to apply to the gradient

• fill – the fill rule

• blend – the blend mode

Returns:

true: success, false: failed