[Horus] More bitmaps on SD. PNG format used instead of BMP. And yes it's a bad idea given the resources we have.

radio/src/gui/horus/lcd.cpp

@@ -659,7 +659,7 @@ void lcdDrawBlackOverlay()
 }
 
 #if defined(SIMU)
-BitmapBuffer _lcd(LCD_W, LCD_H, displayBuf);
+BitmapBuffer _lcd(BMP_RGB565, LCD_W, LCD_H, displayBuf);
 BitmapBuffer * lcd = &_lcd;
 
 void DMAFillRect(uint16_t * dest, uint16_t destw, uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color)
@@ -678,12 +678,12 @@ void DMACopyBitmap(uint16_t * dest, uint16_t destw, uint16_t x, uint16_t y, cons
   }
 }
 
-void DMACopyAlphaBitmap(uint16_t * dest, uint16_t destw, uint16_t x, uint16_t y, const uint16_t * src, uint16_t srcw, uint16_t h)
+void DMACopyAlphaBitmap(uint16_t * dest, uint16_t destw, uint16_t x, uint16_t y, const uint16_t * src, uint16_t srcw, uint16_t srcx, uint16_t srcy, uint16_t w, uint16_t h)
 {
   for (coord_t line=0; line<h; line++) {
     uint16_t * p = dest + (y+line)*destw + x;
-    const uint16_t * q = src + line*srcw;
-    for (coord_t col=0; col<srcw; col++) {
+    const uint16_t * q = src + (srcy+line)*srcw + srcx;
+    for (coord_t col=0; col<w; col++) {
       uint8_t alpha = *q >> 12;
       uint8_t red = ((((*q >> 8) & 0x0f) << 1) * alpha + (*p >> 11) * (0x0f-alpha)) / 0x0f;
       uint8_t green = ((((*q >> 4) & 0x0f) << 2) * alpha + ((*p >> 5) & 0x3f) * (0x0f-alpha)) / 0x0f;
@@ -693,4 +693,26 @@ void DMACopyAlphaBitmap(uint16_t * dest, uint16_t destw, uint16_t x, uint16_t y,
     }
   }
 }
+
+void DMABitmapConvert(uint16_t * dest, const uint8_t * src, uint16_t w, uint16_t h, uint32_t format)
+{
+  if (format == DMA2D_ARGB4444) {
+    for (int row = 0; row < h; ++row) {
+      for (int col = 0; col < w; ++col) {
+        *dest = ARGB(src[0], src[1], src[2], src[3]);
+        ++dest;
+        src += 4;
+      }
+    }
+  }
+  else {
+    for (int row = 0; row < h; ++row) {
+      for(int col = 0; col < w; ++col) {
+        *dest = RGB(src[1], src[2], src[3]);
+        ++dest;
+        src += 4;
+      }
+    }
+  }
+}
 #endif