ooo yyy / Mbed OS GR-Boads_Camera_DisplayApp

Study

Dependencies:   DisplayApp mbed-os-lychee

Files at this revision

API Documentation at this revision

Revision 2:437003074bc7, committed 2018-11-16

Comitter:
yagyag
Date:
Fri Nov 16 07:48:32 2018 +0000
Parent:
1:0756c0a63a4b
Commit message:
???

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r 0756c0a63a4b -r 437003074bc7 main.cpp
--- a/main.cpp	Fri Feb 02 05:59:59 2018 +0000
+++ b/main.cpp	Fri Nov 16 07:48:32 2018 +0000
@@ -25,9 +25,11 @@
 static uint8_t user_frame_buffer0[FRAME_BUFFER_STRIDE * FRAME_BUFFER_HEIGHT]@ ".mirrorram";
 #pragma data_alignment=32
 static uint8_t JpegBuffer[2][1024 * 64];
+static uint8_t JpegBuffer_Send[1024 * 64];
 #else
 static uint8_t user_frame_buffer0[FRAME_BUFFER_STRIDE * FRAME_BUFFER_HEIGHT]__attribute((section("NC_BSS"),aligned(32)));
 static uint8_t JpegBuffer[2][1024 * 64]__attribute((aligned(32)));
+static uint8_t JpegBuffer_Send[1024 * 64]__attribute((aligned(32)));
 #endif
 static size_t jcu_encode_size[2];
 static JPEG_Converter Jcu;
@@ -48,12 +50,17 @@
 }
 
 static void snapshot(void) {
+    //JPEGにエンコード中 or エンコード未完了
     while ((jcu_encoding == 1) || (image_change == 0)) {
         Thread::wait(1);
     }
     jcu_buf_index_read = jcu_buf_index_write_done;
+    //画像データをコピー(JpegBufferは他から書き換えられる可能性があるため)
+    memcpy(JpegBuffer_Send, JpegBuffer[jcu_buf_index_read],1024 * 64);
     image_change = 0;
-    display_app.SendJpeg(JpegBuffer[jcu_buf_index_read], (int)jcu_encode_size[jcu_buf_index_read]);
+
+    //撮影した画像データ(JPEG)をPCにUSBシリアル通信で転送
+    display_app.SendJpeg(JpegBuffer_Send, (uint32_t)jcu_encode_size[jcu_buf_index_read]);
 }
 
 static void IntCallbackFunc_Vfield(DisplayBase::int_type_t int_type) {