Merge pull request #3529 from jensechu/color-converter-transparency

displayio: Pass transparent_color to ColorConverter

locale/circuitpython.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-10-16 13:56-0500\n"
+"POT-Creation-Date: 2020-10-16 19:50-0500\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -1404,6 +1404,10 @@ msgid ""
 "%d bpp given"
 msgstr ""
 
+#: shared-module/displayio/ColorConverter.c
+msgid "Only one color can be transparent at a time"
+msgstr ""
+
 #: shared-bindings/ipaddress/__init__.c
 msgid "Only raw int supported for ip"
 msgstr ""

locale/zh_Latn_pinyin.po

@@ -3277,7 +3277,7 @@ msgstr "yòubiān bìxū shì ndarray huò biāoliàng"
 
 #: py/objstr.c
 msgid "rsplit(None,n)"
-msgstr "Rchāifēn(wú ，N）"
+msgstr "Rchāifēn(wú,N)"
 
 #: shared-bindings/audiocore/RawSample.c
 msgid ""

ports/atmel-samd/Makefile

@@ -121,7 +121,7 @@ $(echo PERIPHERALS_CHIP_FAMILY=$(PERIPHERALS_CHIP_FAMILY))
 ifeq ($(DEBUG), 1)
   CFLAGS += -ggdb3 -Og
   # You may want to disable -flto if it interferes with debugging.
-  CFLAGS += -flto
+  CFLAGS += -flto -flto-partition=none
   # You may want to enable these flags to make setting breakpoints easier.
   # CFLAGS += -fno-inline -fno-ipa-sra
   ifeq ($(CHIP_FAMILY), samd21)
@@ -144,7 +144,7 @@ else
     CFLAGS += -finline-limit=$(CFLAGS_INLINE_LIMIT)
   endif
 
-  CFLAGS += -flto
+  CFLAGS += -flto -flto-partition=none
 
   ifeq ($(CIRCUITPY_FULL_BUILD),0)
     CFLAGS += --param inline-unit-growth=15 --param max-inline-insns-auto=20

shared-bindings/displayio/ColorConverter.c

@@ -52,7 +52,7 @@ STATIC mp_obj_t displayio_colorconverter_make_new(const mp_obj_type_t *type, siz
     enum { ARG_dither};
 
     static const mp_arg_t allowed_args[] = {
-        { MP_QSTR_dither, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
+        { MP_QSTR_dither, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} }
     };
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
     mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
@@ -110,9 +110,35 @@ const mp_obj_property_t displayio_colorconverter_dither_obj = {
               (mp_obj_t)&mp_const_none_obj},
 };
 
+//|     def make_transparent(self, pixel: int) -> None:
+//|         """Sets a pixel to not opaque."""
+//|
+STATIC mp_obj_t displayio_colorconverter_make_transparent(mp_obj_t self_in, mp_obj_t transparent_color_obj) {
+    displayio_colorconverter_t *self = MP_OBJ_TO_PTR(self_in);
+
+    mp_int_t transparent_color = mp_obj_get_int(&transparent_color);
+    common_hal_displayio_colorconverter_make_transparent(self, transparent_color);
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(displayio_colorconverter_make_transparent_obj, displayio_colorconverter_make_transparent);
+
+//|     def make_opaque(self, pixel: int) -> None:
+//|         """Sets a pixel to opaque."""
+//|
+STATIC mp_obj_t displayio_colorconverter_make_opaque(mp_obj_t self_in, mp_obj_t transparent_color_obj) {
+    displayio_colorconverter_t *self = MP_OBJ_TO_PTR(self_in);
+
+    mp_int_t transparent_color = mp_obj_get_int(&transparent_color);
+    common_hal_displayio_colorconverter_make_opaque(self, transparent_color);
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(displayio_colorconverter_make_opaque_obj, displayio_colorconverter_make_opaque);
+
 STATIC const mp_rom_map_elem_t displayio_colorconverter_locals_dict_table[] = {
     { MP_ROM_QSTR(MP_QSTR_convert), MP_ROM_PTR(&displayio_colorconverter_convert_obj) },
     { MP_ROM_QSTR(MP_QSTR_dither), MP_ROM_PTR(&displayio_colorconverter_dither_obj) },
+    { MP_ROM_QSTR(MP_QSTR_make_transparent), MP_ROM_PTR(&displayio_colorconverter_make_transparent_obj) },
+    { MP_ROM_QSTR(MP_QSTR_make_opaque), MP_ROM_PTR(&displayio_colorconverter_make_opaque_obj) },
 };
 STATIC MP_DEFINE_CONST_DICT(displayio_colorconverter_locals_dict, displayio_colorconverter_locals_dict_table);
 

shared-bindings/displayio/ColorConverter.h

@@ -39,4 +39,7 @@ void common_hal_displayio_colorconverter_convert(displayio_colorconverter_t *col
 void common_hal_displayio_colorconverter_set_dither(displayio_colorconverter_t* self, bool dither);
 bool common_hal_displayio_colorconverter_get_dither(displayio_colorconverter_t* self);
 
+void common_hal_displayio_colorconverter_make_transparent(displayio_colorconverter_t* self, uint32_t transparent_color);
+void common_hal_displayio_colorconverter_make_opaque(displayio_colorconverter_t* self, uint32_t transparent_color);
+
 #endif // MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYIO_COLORCONVERTER_H

shared-module/displayio/ColorConverter.c

@@ -27,6 +27,7 @@
 #include "shared-bindings/displayio/ColorConverter.h"
 
 #include "py/misc.h"
+#include "py/runtime.h"
 
 uint32_t displayio_colorconverter_dither_noise_1 (uint32_t n)
 {
@@ -128,9 +129,27 @@ bool common_hal_displayio_colorconverter_get_dither(displayio_colorconverter_t*
     return self->dither;
 }
 
+void common_hal_displayio_colorconverter_make_transparent(displayio_colorconverter_t* self, uint32_t transparent_color) {
+    if (self->transparent_color >= 0x1000000) {
+        mp_raise_RuntimeError(translate("Only one color can be transparent at a time"));
+    }
+    self->transparent_color = transparent_color;
+}
+
+void common_hal_displayio_colorconverter_make_opaque(displayio_colorconverter_t* self, uint32_t transparent_color) {
+    (void) transparent_color;
+    // 0x1000000 will never equal a valid color
+    self->transparent_color = 0x1000000;
+}
+
 void displayio_colorconverter_convert(displayio_colorconverter_t *self, const _displayio_colorspace_t* colorspace, const displayio_input_pixel_t *input_pixel, displayio_output_pixel_t *output_color) {
     uint32_t pixel = input_pixel->pixel;
 
+    if (self->transparent_color == pixel) {
+        output_color->opaque = false;
+        return;
+    }
+
     if (self->dither){
         uint8_t randr = (displayio_colorconverter_dither_noise_2(input_pixel->tile_x,input_pixel->tile_y));
         uint8_t randg = (displayio_colorconverter_dither_noise_2(input_pixel->tile_x+33,input_pixel->tile_y));

shared-module/displayio/ColorConverter.h

@@ -36,6 +36,7 @@
 typedef struct {
     mp_obj_base_t base;
     bool dither;
+    uint32_t transparent_color;
 } displayio_colorconverter_t;
 
 bool displayio_colorconverter_needs_refresh(displayio_colorconverter_t *self);