Diff: PictureDemo.cpp

Revision:

0:83b8ee8e8d4b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PictureDemo.cpp	Wed Jan 08 12:35:11 2014 +0000
@@ -0,0 +1,100 @@
+/******************************************************************************
+ * Includes
+ *****************************************************************************/
+
+#include "mbed.h"
+
+#include "LcdController.h"
+#include "EaLcdBoard.h"
+#include "PictureDemo.h"
+
+#include "Image.h"
+
+extern const unsigned char eaLogo_image[];
+extern int eaLogo_image_sz;
+
+extern const unsigned char splash_image[];
+extern int splash_image_sz;
+
+/******************************************************************************
+ * Typedefs and defines
+ *****************************************************************************/
+
+/******************************************************************************
+ * Local variables
+ *****************************************************************************/
+
+/******************************************************************************
+ * External variables
+ *****************************************************************************/
+extern EaLcdBoard lcdBoard;
+extern bool abortTest;
+
+/******************************************************************************
+ * Local functions
+ *****************************************************************************/
+
+void PictureDemo::drawCentered(const unsigned char* pData, int size, uint32_t delayMs)
+{
+    Image::ImageData_t data;
+    int result = Image::decode(pData, size, &data);
+    if (result == 0)
+    {
+        // Draw the image centered on the screen
+        unsigned int xoff = (windowX - data.width)/2;
+        unsigned int yoff = (windowY - data.height)/2;
+        for (int y = 0; y < data.height; y++)
+        {
+            memcpy(this->pFrmBuf1 + (y+yoff)*windowX + xoff, 
+                   data.pixels + y*data.width, 
+                   data.width*2);
+        }
+        
+        free(data.pixels);    
+    }
+    else
+    {
+        printf("Failed to decode image\n");
+    }
+}
+
+/******************************************************************************
+ * Public functions
+ *****************************************************************************/
+PictureDemo::PictureDemo(uint8_t *pFrameBuf, uint16_t dispWidth, uint16_t dispHeight)
+{
+    this->windowX = dispWidth;
+    this->windowY = dispHeight;
+    this->pFrmBuf  = (uint16_t *)pFrameBuf;
+    this->pFrmBuf1 = (uint16_t *)pFrameBuf;
+    this->pFrmBuf2 = (uint16_t *)((uint32_t)pFrameBuf + dispWidth*dispHeight*2);
+    this->pFrmBuf3 = (uint16_t *)((uint32_t)pFrameBuf + dispWidth*dispHeight*4);
+}
+
+void PictureDemo::run(int image, uint32_t delayMs)
+{
+  printf("PictureDemo, image %d, %dms delay\n", image, delayMs);
+  
+    memset(this->pFrmBuf1, 0xff, windowX*windowY*2);
+    switch (image)
+    {
+        case 1:
+            drawCentered(eaLogo_image, eaLogo_image_sz, delayMs);
+            break;
+        
+        default:
+            drawCentered(splash_image, splash_image_sz, delayMs);
+            break;
+    }
+
+    //update framebuffer
+    lcdBoard.setFrameBuffer((uint32_t)this->pFrmBuf1);
+    
+    for (int i = 0; i < delayMs; i+=10) {
+        if (abortTest) {
+            break;
+        }
+        wait(0.01);
+    }
+}
+