diff --git a/shared-bindings/_stage/__init__.c b/shared-bindings/_stage/__init__.c index 1ca206339a..485fa80c5a 100644 --- a/shared-bindings/_stage/__init__.c +++ b/shared-bindings/_stage/__init__.c @@ -50,7 +50,7 @@ //| Layer //| Text //| -//| .. function:: render(x0, y0, x1, y1, layers, buffer, display) +//| .. function:: render(x0, y0, x1, y1, layers, buffer, display[, scale]) //| //| Render and send to the display a fragment of the screen. //| @@ -61,6 +61,7 @@ //| :param list layers: A list of the :py:class:`~_stage.Layer` objects. //| :param bytearray buffer: A buffer to use for rendering. //| :param ~displayio.Display display: The display to use. +//| :param int scale: How many times should the image be scaled up. //| //| There are also no sanity checks, outside of the basic overflow //| checking. The caller is responsible for making the passed parameters @@ -89,6 +90,10 @@ STATIC mp_obj_t stage_render(size_t n_args, const mp_obj_t *args) { mp_raise_TypeError(translate("argument num/types mismatch")); } displayio_display_obj_t *display = MP_OBJ_TO_PTR(native_display); + uint8_t scale = 1; + if (n_args >= 8) { + scale = mp_obj_get_int(args[7]); + } while (!displayio_display_begin_transaction(display)) { #ifdef MICROPY_VM_HOOK_LOOP @@ -103,12 +108,13 @@ STATIC mp_obj_t stage_render(size_t n_args, const mp_obj_t *args) { displayio_display_set_region_to_update(display, &area); display->send(display->bus, true, &display->write_ram_command, 1); - render_stage(x0, y0, x1, y1, layers, layers_size, buffer, buffer_size, display); + render_stage(x0, y0, x1, y1, layers, layers_size, buffer, buffer_size, + display, scale); displayio_display_end_transaction(display); return mp_const_none; } -MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(stage_render_obj, 7, 7, stage_render); +MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(stage_render_obj, 7, 8, stage_render); STATIC const mp_rom_map_elem_t stage_module_globals_table[] = { diff --git a/shared-module/_stage/__init__.c b/shared-module/_stage/__init__.c index 1af279e92b..ca71b758e6 100644 --- a/shared-module/_stage/__init__.c +++ b/shared-module/_stage/__init__.c @@ -34,30 +34,35 @@ void render_stage(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, mp_obj_t *layers, size_t layers_size, uint16_t *buffer, size_t buffer_size, - displayio_display_obj_t *display) { + displayio_display_obj_t *display, uint8_t scale) { size_t index = 0; for (uint16_t y = y0; y < y1; ++y) { - for (uint16_t x = x0; x < x1; ++x) { - for (size_t layer = 0; layer < layers_size; ++layer) { + for (uint8_t yscale = 0; yscale < scale; ++yscale) { + for (uint16_t x = x0; x < x1; ++x) { uint16_t c = TRANSPARENT; - layer_obj_t *obj = MP_OBJ_TO_PTR(layers[layer]); - if (obj->base.type == &mp_type_layer) { - c = get_layer_pixel(obj, x, y); - } else if (obj->base.type == &mp_type_text) { - c = get_text_pixel((text_obj_t *)obj, x, y); + for (size_t layer = 0; layer < layers_size; ++layer) { + layer_obj_t *obj = MP_OBJ_TO_PTR(layers[layer]); + if (obj->base.type == &mp_type_layer) { + c = get_layer_pixel(obj, x, y); + } else if (obj->base.type == &mp_type_text) { + c = get_text_pixel((text_obj_t *)obj, x, y); + } + if (c != TRANSPARENT) { + break; + } } - if (c != TRANSPARENT) { + for (uint8_t xscale = 0; xscale < scale; ++xscale) { buffer[index] = c; - break; + index += 1; + // The buffer is full, send it. + if (index >= buffer_size) { + display->send(display->bus, false, ((uint8_t*)buffer), + buffer_size * 2); + index = 0; + } } } - index += 1; - // The buffer is full, send it. - if (index >= buffer_size) { - display->send(display->bus, false, ((uint8_t*)buffer), buffer_size * 2); - index = 0; - } } } // Send the remaining data. diff --git a/shared-module/_stage/__init__.h b/shared-module/_stage/__init__.h index d263302b48..5af2124aeb 100644 --- a/shared-module/_stage/__init__.h +++ b/shared-module/_stage/__init__.h @@ -37,6 +37,6 @@ void render_stage(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, mp_obj_t *layers, size_t layers_size, uint16_t *buffer, size_t buffer_size, - displayio_display_obj_t *display); + displayio_display_obj_t *display, uint8_t scale); #endif // MICROPY_INCLUDED_SHARED_MODULE__STAGE