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framebufferio: get width, height from framebuffer properties

This commit is contained in:
Jeff Epler 2020-04-15 09:13:02 -05:00
parent d2aac7a754
commit d1ff23e004
1 changed files with 14 additions and 2 deletions
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16
shared-bindings/framebufferio/FramebufferDisplay.c
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@ -39,6 +39,10 @@
#include "shared-module/displayio/__init__.h"
#include "supervisor/shared/translate.h"
STATIC int get_int_property(mp_obj_t obj, qstr attr) {
return mp_obj_get_int(mp_load_attr(obj, attr));
}
//| .. currentmodule:: framebufferio
//|
//| :class:`FramebufferDisplay` -- Manage updating a display with framebuffer in RAM
@ -70,8 +74,8 @@ STATIC mp_obj_t framebufferio_framebufferdisplay_make_new(const mp_obj_type_t *t
enum { ARG_framebuffer, ARG_width, ARG_height, ARG_rotation, ARG_color_depth, ARG_bytes_per_cell, ARG_auto_refresh, ARG_native_frames_per_second, NUM_ARGS };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_framebuffer, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_width, MP_ARG_INT | MP_ARG_KW_ONLY | MP_ARG_REQUIRED, },
{ MP_QSTR_height, MP_ARG_INT | MP_ARG_KW_ONLY | MP_ARG_REQUIRED, },
{ MP_QSTR_width, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0} },
{ MP_QSTR_height, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0} },
{ MP_QSTR_rotation, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0} },
{ MP_QSTR_color_depth, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 16} },
{ MP_QSTR_bytes_per_cell, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 1} },
@ -84,6 +88,14 @@ STATIC mp_obj_t framebufferio_framebufferdisplay_make_new(const mp_obj_type_t *t
mp_obj_t framebuffer = args[ARG_framebuffer].u_obj;
if (args[ARG_width].u_int == 0) {
args[ARG_width].u_int = get_int_property(framebuffer, MP_QSTR_width);
}
if (args[ARG_height].u_int == 0) {
args[ARG_height].u_int = get_int_property(framebuffer, MP_QSTR_height);
}
mp_int_t rotation = args[ARG_rotation].u_int;
if (rotation % 90 != 0) {
mp_raise_ValueError(translate("Display rotation must be in 90 degree increments"));