Diff: GraphicsDisplay.cpp

Revision:

115:c9862fd0c689

Parent:

114:dbfb996bfbf3

Child:

119:d129b798f82f

--- a/GraphicsDisplay.cpp	Sun May 15 18:57:06 2016 +0000
+++ b/GraphicsDisplay.cpp	Mon May 16 02:05:37 2016 +0000
@@ -9,14 +9,14 @@
 #include "Bitmap.h"
 #include "string.h"
 
-//#define DEBUG "GD  "
+#define DEBUG "GD  "
 // ...
 // INFO("Stuff to show %d", var); // new-line is automatically appended
 //
 #if (defined(DEBUG) && !defined(TARGET_LPC11U24))
-#define INFO(x, ...) std::printf("[INF %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
-#define WARN(x, ...) std::printf("[WRN %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
-#define ERR(x, ...)  std::printf("[ERR %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
+#define INFO(x, ...) std::printf("[INF %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
+#define WARN(x, ...) std::printf("[WRN %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
+#define ERR(x, ...)  std::printf("[ERR %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
 static void HexDump(const char * title, const uint8_t * p, int count)
 {
     int i;
@@ -387,6 +387,8 @@
 {
     if (mystrnicmp(FileName + strlen(FileName) - 4, ".bmp", 4) == 0) {
         return RenderBitmapFile(x,y,FileName);
+    } else if (mystrnicmp(FileName + strlen(FileName) - 4, ".jpg", 4) == 0) {
+        return RenderJpegFile(x,y,FileName);
     } else if (mystrnicmp(FileName + strlen(FileName) - 4, ".ico", 4) == 0) {
         return RenderIconFile(x,y,FileName);
     } else {
@@ -394,6 +396,45 @@
     }
 }
 
+
+RetCode_t GraphicsDisplay::RenderJpegFile(loc_t x, loc_t y, const char *Name_JPG)
+{
+    #define JPEG_WORK_SPACE_SIZE 3100
+    JDEC * jdec;
+    uint16_t * work;
+    RetCode_t r = noerror;  // start optimistic
+    FILE * fh = fopen(Name_JPG, "rb");
+    
+    if (!fh)
+        return(file_not_found);
+    
+    work = (uint16_t *)malloc(JPEG_WORK_SPACE_SIZE/sizeof(uint16_t));
+    if (work) {
+        jdec = (JDEC *)malloc(sizeof(JDEC));
+        if (jdec) {
+            r = (RetCode_t)jd_prepare(jdec, NULL, work, JPEG_WORK_SPACE_SIZE, fh);
+            INFO("jd_prepare returned %d", r);
+            
+            if (r == noerror) {
+                SetGraphicsCursor(x,y);
+                r = (RetCode_t)jd_decomp(jdec, NULL, 0);
+            } else {
+                r = not_supported_format;   // error("jd_prepare error:%d", r);
+            }
+            free(jdec);
+        } else {
+            WARN("checkpoint");
+            r = not_enough_ram;
+        }
+        free(work);
+    } else {
+        WARN("checkpoint");
+        r = not_enough_ram;
+    }
+    fclose(fh);
+    return r;   // error("jd_decomp error:%d", r);
+}
+
 RetCode_t GraphicsDisplay::RenderBitmapFile(loc_t x, loc_t y, const char *Name_BMP)
 {
     BITMAPFILEHEADER BMP_Header;