From 4e37e1ad444dfd0067b5ab21a1e79bf126b6d1c8 Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Mon, 10 May 2021 12:42:32 +0200
Subject: [PATCH] tests/pkg_qr-code-generator: extend with disp_dev API

---
 tests/pkg_qr-code-generator/Kconfig           | 11 ++++++
 tests/pkg_qr-code-generator/Makefile          |  4 ++
 .../pkg_qr-code-generator/Makefile.board.dep  |  5 +++
 tests/pkg_qr-code-generator/main.c            | 39 +++++++++++++++++++
 4 files changed, 59 insertions(+)
 create mode 100644 tests/pkg_qr-code-generator/Kconfig
 create mode 100644 tests/pkg_qr-code-generator/Makefile.board.dep

diff --git a/tests/pkg_qr-code-generator/Kconfig b/tests/pkg_qr-code-generator/Kconfig
new file mode 100644
index 0000000000..db88101391
--- /dev/null
+++ b/tests/pkg_qr-code-generator/Kconfig
@@ -0,0 +1,11 @@
+config APPLICATION
+    bool
+    default y
+    imply MODULE_AUTO_INIT_SCREEN if BOARD_HAS_DISPLAY
+    imply MODULE_DISP_DEV if BOARD_HAS_DISPLAY
+    depends on TEST_KCONFIG
+
+config BOARD_HAS_DISPLAY
+    bool
+    default y
+    depends on BOARD_PINETIME || BOARD_ADAFRUIT_CLUE || BOARD_STM32F429I_DISC1 || BOARD_STM32F429I_DISCO
diff --git a/tests/pkg_qr-code-generator/Makefile b/tests/pkg_qr-code-generator/Makefile
index 8c7df1d5f3..f728b51e4a 100644
--- a/tests/pkg_qr-code-generator/Makefile
+++ b/tests/pkg_qr-code-generator/Makefile
@@ -6,4 +6,8 @@ MESSAGE_TO_ENCODE ?= "https://riot-os.org"
 
 CFLAGS += -DMESSAGE_TO_ENCODE=\"$(MESSAGE_TO_ENCODE)\"
 
+# This application provides a 'Kconfig' file and we want to explicitly disable
+# Kconfig by default by setting this variable to empty
+SHOULD_RUN_KCONFIG ?=
+
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/pkg_qr-code-generator/Makefile.board.dep b/tests/pkg_qr-code-generator/Makefile.board.dep
new file mode 100644
index 0000000000..7a9d1586e5
--- /dev/null
+++ b/tests/pkg_qr-code-generator/Makefile.board.dep
@@ -0,0 +1,5 @@
+# Boards with a screen can use disp_dev
+ifneq (,$(filter stm32f429i-disc% pinetime adafruit-clue,$(BOARD)))
+  USEMODULE += auto_init_screen
+  USEMODULE += disp_dev
+endif
diff --git a/tests/pkg_qr-code-generator/main.c b/tests/pkg_qr-code-generator/main.c
index d9b91be22e..8202dbc8e2 100644
--- a/tests/pkg_qr-code-generator/main.c
+++ b/tests/pkg_qr-code-generator/main.c
@@ -24,6 +24,10 @@
 #include <stdint.h>
 #include "qrcodegen.h"
 
+#ifdef MODULE_DISP_DEV
+#include "disp_dev.h"
+#endif
+
 #ifndef MESSAGE_TO_ENCODE
 #define MESSAGE_TO_ENCODE   "unknown"
 #endif
@@ -42,9 +46,44 @@ int main(void)
     }
 
     int size = qrcodegen_getSize(qr0);
+
+#ifdef MODULE_DISP_DEV
+    /* Use the first screen */
+    disp_dev_reg_t *disp_dev = disp_dev_reg_find_screen(0);
+    if (!disp_dev) {
+        puts("No screen found!");
+        return -1;
+    }
+    disp_dev_backlight_on();
+
+    uint16_t white = UINT16_MAX;
+    uint16_t black = 0;
+    for (uint16_t y = 0; y < disp_dev_height(disp_dev->dev); y++) {
+        for (uint16_t x = 0; x <  disp_dev_width(disp_dev->dev); x++) {
+            disp_dev_map(disp_dev->dev, x, x, y, y, &black);
+        }
+    }
+
+    const uint8_t scale = disp_dev_height(disp_dev->dev) / size;
+    const uint8_t w_offset = (disp_dev_width(disp_dev->dev) - (size * scale)) / 2;
+    const uint8_t h_offset = (disp_dev_height(disp_dev->dev) - (size * scale)) / 2;
+#endif
+
     for (int y = 0; y < size; y++) {
         for (int x = 0; x < size; x++) {
+#ifdef MODULE_DISP_DEV
+            for (int w = x * scale; w < (x + 1) * scale; w++) {
+                for (int h = y * scale; h < (y + 1) * scale; h++) {
+                    if (qrcodegen_getModule(qr0, x, y)) {
+                        disp_dev_map(disp_dev->dev,
+                                     w + w_offset, w + w_offset, h + h_offset, h + h_offset,
+                                     &white);
+                    }
+                }
+            }
+#endif
             printf("%s", qrcodegen_getModule(qr0, x, y) ? "██" : "  ");
+
         }
         puts("");
     }