lv_opengles_driver.h

Functions

void lv_opengles_init(void)

Initialize OpenGL

Note

it is not necessary to call this if you use lv_glfw_window_create

void lv_opengles_deinit(void)

Deinitialize OpenGL

Note

it is not necessary to call this if you use lv_glfw_window_create

void lv_opengles_render_texture(unsigned int texture, const lv_area_t *texture_area, lv_opa_t opa, int32_t disp_w, int32_t disp_h, const lv_area_t *texture_clip_area, bool flip)

Render a texture

Parameters:

• texture – OpenGL texture ID

• texture_area – the area in the window to render the texture in

• opa – opacity to blend the texture with existing contents

• disp_w – width of the window/framebuffer being rendered to

• disp_h – height of the window/framebuffer being rendered to

void lv_opengles_render_fill(lv_color_t color, const lv_area_t *area, lv_opa_t opa, int32_t disp_w, int32_t disp_h)

Render a fill

Parameters:

• color – the color of the fill

• area – the area in the window to render the fill

• opa – opacity to blend the fill with existing contents

• disp_w – width of the window/framebuffer being rendered to

• disp_h – height of the window/framebuffer being rendered to

void lv_opengles_render_clear(void)

Clear the window/display

void lv_opengles_viewport(int32_t x, int32_t y, int32_t w, int32_t h)

Set the OpenGL viewport

Parameters:

• x – x position of the viewport

• y – y position of the viewport

• w – width of the viewport

• h – height of the viewport