diff options
| author | Jeff Epler <jepler@gmail.com> | 2020-08-06 14:51:52 -0500 |
|---|---|---|
| committer | Jeff Epler <jepler@gmail.com> | 2020-08-12 07:32:18 -0500 |
| commit | 9c4f644641400c7b7eea37ace73782bc1cec2691 (patch) | |
| tree | ab40f0bd353c640ccde271212384263904cf0ccb /shared-module/framebufferio | |
| parent | 5e4ed9341586c3444409feeb61237e86a5c74c6f (diff) | |
framebufferio: add dirty row tracking
Diffstat (limited to 'shared-module/framebufferio')
| -rw-r--r-- | shared-module/framebufferio/FramebufferDisplay.c | 10 | ||||
| -rw-r--r-- | shared-module/framebufferio/FramebufferDisplay.h | 2 |
2 files changed, 8 insertions, 4 deletions
diff --git a/shared-module/framebufferio/FramebufferDisplay.c b/shared-module/framebufferio/FramebufferDisplay.c index 37989c29f..9a6797cd8 100644 --- a/shared-module/framebufferio/FramebufferDisplay.c +++ b/shared-module/framebufferio/FramebufferDisplay.c @@ -156,7 +156,8 @@ STATIC const displayio_area_t* _get_refresh_areas(framebufferio_framebufferdispl return NULL; } -STATIC bool _refresh_area(framebufferio_framebufferdisplay_obj_t* self, const displayio_area_t* area) { +#define MARK_ROW_DIRTY(r) (dirty_row_bitmask[r/8] = (1 << (r & 7))) +STATIC bool _refresh_area(framebufferio_framebufferdisplay_obj_t* self, const displayio_area_t* area, uint8_t *dirty_row_bitmask) { uint16_t buffer_size = 128; // In uint32_ts displayio_area_t clipped; @@ -235,6 +236,7 @@ STATIC bool _refresh_area(framebufferio_framebufferdisplay_obj_t* self, const di for (uint16_t i = subrectangle.y1; i < subrectangle.y2; i++) { assert(dest >= buf && dest < endbuf && dest+rowsize <= endbuf); + MARK_ROW_DIRTY(i); memcpy(dest, src, rowsize); dest += rowstride; src += rowsize; @@ -251,12 +253,14 @@ STATIC void _refresh_display(framebufferio_framebufferdisplay_obj_t* self) { displayio_display_core_start_refresh(&self->core); const displayio_area_t* current_area = _get_refresh_areas(self); if (current_area) { + uint8_t dirty_row_bitmask[(self->core.height + 7) / 8]; + memset(dirty_row_bitmask, 0, sizeof(dirty_row_bitmask)); self->framebuffer_protocol->get_bufinfo(self->framebuffer, &self->bufinfo); while (current_area != NULL) { - _refresh_area(self, current_area); + _refresh_area(self, current_area, dirty_row_bitmask); current_area = current_area->next; } - self->framebuffer_protocol->swapbuffers(self->framebuffer); + self->framebuffer_protocol->swapbuffers(self->framebuffer, dirty_row_bitmask); } displayio_display_core_finish_refresh(&self->core); } diff --git a/shared-module/framebufferio/FramebufferDisplay.h b/shared-module/framebufferio/FramebufferDisplay.h index 93ad0118a..027086b5a 100644 --- a/shared-module/framebufferio/FramebufferDisplay.h +++ b/shared-module/framebufferio/FramebufferDisplay.h @@ -79,7 +79,7 @@ typedef int (*framebuffer_get_width_fun)(mp_obj_t); typedef mp_float_t (*framebuffer_get_brightness_fun)(mp_obj_t); typedef void (*framebuffer_deinit_fun)(mp_obj_t); typedef void (*framebuffer_get_bufinfo_fun)(mp_obj_t, mp_buffer_info_t *bufinfo); -typedef void (*framebuffer_swapbuffers_fun)(mp_obj_t); +typedef void (*framebuffer_swapbuffers_fun)(mp_obj_t, uint8_t *dirty_row_bitmask); typedef struct _framebuffer_p_t { MP_PROTOCOL_HEAD // MP_QSTR_protocol_framebuffer |