lv_eve.h

API reference for lv_eve.h

Summary

Functions

draw/eve/lv_eve.h:81function

lv_eve_save_context

void lv_eve_save_context(void)

draw/eve/lv_eve.h:82function

lv_eve_restore_context

void lv_eve_restore_context(void)

draw/eve/lv_eve.h:83function

lv_eve_scissor

void lv_eve_scissor(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)

Name	Type
`x1`	`uint16_t`
`y1`	`uint16_t`
`x2`	`uint16_t`
`y2`	`uint16_t`

draw/eve/lv_eve.h:84function

lv_eve_primitive

void lv_eve_primitive(uint8_t context)

Name	Type
`context`	`uint8_t`

draw/eve/lv_eve.h:85function

lv_eve_color

void lv_eve_color(lv_color_t color)

Name	Type
`color`	`lv_color_t`

draw/eve/lv_eve.h:86function

lv_eve_color_opa

void lv_eve_color_opa(lv_opa_t opa)

Name	Type
`opa`	`lv_opa_t`

draw/eve/lv_eve.h:87function

lv_eve_line_width

void lv_eve_line_width(int32_t width)

Name	Type
`width`	`int32_t`

draw/eve/lv_eve.h:88function

lv_eve_point_size

void lv_eve_point_size(uint16_t radius)

Name	Type
`radius`	`uint16_t`

draw/eve/lv_eve.h:89function

lv_eve_vertex_2f

void lv_eve_vertex_2f(int16_t x, int16_t y)

Name	Type
`x`	`int16_t`
`y`	`int16_t`

draw/eve/lv_eve.h:90function

lv_eve_color_mask

void lv_eve_color_mask(uint8_t r, uint8_t g, uint8_t b, uint8_t a)

Name	Type
`r`	`uint8_t`
`g`	`uint8_t`
`b`	`uint8_t`
`a`	`uint8_t`

draw/eve/lv_eve.h:91function

lv_eve_stencil_func

void lv_eve_stencil_func(uint8_t func, uint8_t ref, uint8_t mask)

Name	Type
`func`	`uint8_t`
`ref`	`uint8_t`
`mask`	`uint8_t`

draw/eve/lv_eve.h:92function

lv_eve_stencil_op

void lv_eve_stencil_op(uint8_t sfail, uint8_t spass)

Name	Type
`sfail`	`uint8_t`
`spass`	`uint8_t`

draw/eve/lv_eve.h:93function

lv_eve_blend_func

void lv_eve_blend_func(uint8_t src, uint8_t dst)

Name	Type
`src`	`uint8_t`
`dst`	`uint8_t`

draw/eve/lv_eve.h:95function

lv_eve_draw_circle_simple

void lv_eve_draw_circle_simple(int16_t coord_x1, int16_t coord_y1, uint16_t radius_t)

Name	Type
`coord_x1`	`int16_t`
`coord_y1`	`int16_t`
`radius_t`	`uint16_t`

draw/eve/lv_eve.h:96function

lv_eve_draw_rect_simple

void lv_eve_draw_rect_simple(int16_t coord_x1, int16_t coord_y1, int16_t coord_x2, int16_t coord_y2, uint16_t radius)

Name	Type
`coord_x1`	`int16_t`
`coord_y1`	`int16_t`
`coord_x2`	`int16_t`
`coord_y2`	`int16_t`
`radius`	`uint16_t`

draw/eve/lv_eve.h:98function

lv_eve_mask_round

void lv_eve_mask_round(int16_t coord_x1, int16_t coord_y1, int16_t coord_x2, int16_t coord_y2, int16_t radius)

Name	Type
`coord_x1`	`int16_t`
`coord_y1`	`int16_t`
`coord_x2`	`int16_t`
`coord_y2`	`int16_t`
`radius`	`int16_t`

draw/eve/lv_eve.h:105function

lv_eve_bitmap_source

Set the bitmap source to addr. SPI transmission will occur unless it is already set to this value. The bitmap source is not part of the saved and restored context.

void lv_eve_bitmap_source(uint32_t addr)

Name	Type	Description
`addr`	`uint32_t`	the remote EVE memory address to set as the bitmap source

draw/eve/lv_eve.h:116function

lv_eve_bitmap_size

Set the bitmap size and sampling parameters. SPI transmission will occur unless the currently set parameters are already these. The bitmap size is not part of the saved and restored context.

void lv_eve_bitmap_size(uint8_t filter, uint8_t wrapx, uint8_t wrapy, uint16_t width, uint16_t height)

Name	Type	Description
`filter`	`uint8_t`	the sampling method. Either EVE_NEAREST or EVE_BILINEAR
`wrapx`	`uint8_t`	the out of bounds sampling behavior in the X direction. Either EVE_BORDER or EVE_REPEAT
`wrapy`	`uint8_t`	the out of bounds sampling behavior in the Y direction. Either EVE_BORDER or EVE_REPEAT
`width`	`uint16_t`	the width of the bitmap in pixels
`height`	`uint16_t`	the height of the bitmap in pixels

draw/eve/lv_eve.h:125function

lv_eve_bitmap_layout

Set the bitmap format/layout parameters. SPI transmission will occur unless the currently set parameters are already these. The bitmap layout is not part of the saved and restored context.

void lv_eve_bitmap_layout(uint8_t format, uint16_t linestride, uint16_t height)

Name	Type	Description
`format`	`uint8_t`	an eve color format value like EVE_RGB565
`linestride`	`uint16_t`	the stride of the bitmap rows in bytes
`height`	`uint16_t`	the number of rows in the bitmap

Enums

draw/eve/lv_eve.h:38enum

lv_eve_primitive_t

Name	Value
`LV_EVE_PRIMITIVE_ZERO_VALUE`
`LV_EVE_PRIMITIVE_BITMAPS`	`1UL`
`LV_EVE_PRIMITIVE_POINTS`	`2UL`
`LV_EVE_PRIMITIVE_LINES`	`3UL`
`LV_EVE_PRIMITIVE_LINE_STRIP`	`4UL`
`LV_EVE_PRIMITIVE_EDGE_STRIP_R`	`5UL`
`LV_EVE_PRIMITIVE_EDGE_STRIP_L`	`6UL`
`LV_EVE_PRIMITIVE_EDGE_STRIP_A`	`7UL`
`LV_EVE_PRIMITIVE_EDGE_STRIP_B`	`8UL`
`LV_EVE_PRIMITIVE_RECTS`	`9UL`

Structs

struct

lv_eve_drawing_context_t

Member	Type	Description
`primitive`	`lv_eve_primitive_t`
`color`	`lv_color_t`
`opa`	`lv_opa_t`
`line_width`	`int32_t`
`point_size`	`uint16_t`
`color_mask`	`uint8_t[4]`
`stencil_func`	`uint8_t[3]`
`stencil_op`	`uint8_t[2]`
`blend_func`	`uint8_t[2]`
`scx`	`uint16_t`
`scy`	`uint16_t`

struct

lv_eve_drawing_state_t

Member	Type	Description
`bitmap_source`	`uint32_t`
`bitmap_size`	`uint32_t`
`bitmap_size_h`	`uint32_t`
`bitmap_layout`	`uint32_t`
`bitmap_layout_h`	`uint32_t`

Dependencies

Indirect dependencies

lv_eve.h

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