Added new cameras

Author: BenjaminDannegard

content/hardware/10.mega/shields/giga-display-shield/tutorials/camera-tutorial/content.md

@@ -14,7 +14,7 @@ The GIGA Display Shield comes with an Arducam camera connector. In this tutorial
 - [Arduino GIGA R1 WiFi](/hardware/giga-r1)
 - [Arduino GIGA Display Shield]()
 - [Arduino IDE](https://www.arduino.cc/en/software)
-- HM01B0 or HM0360 camera
+- HM01B0, HM0360, GC2145 or OV7675 camera
 - [Arducam_dvp library](https://www.arduino.cc/reference/en/libraries/arducam_dvp/)
 
 ## Downloading the Library and Core
@@ -29,6 +29,8 @@ The GIGA Display Shield is compatible with the following cameras:
 
 - [HM01B0](https://www.arducam.com/product/hm01b0-qvga-monochrome-dvp-camera-module-for-arduino-giga-r1-wifi-board/)
 - [HM0360](https://www.arducam.com/product/hm0360-vga-monochrome-dvp-camera-module-for-arduino-giga-r1-wifi-board/)
+- [GC2145]
+- [OV7675]
 
 Connect the camera to the connector on the front of the display shield as shown in the image below.
 
@@ -67,13 +69,11 @@ Camera cam(himax);
 OV7675 ov767x;
 Camera cam(ov767x);
 #define IMAGE_MODE CAMERA_RGB565
-#error "Unsupported camera (at the moment :) )"
 #elif defined(ARDUCAM_CAMERA_GC2145)
 #include "GC2145/gc2145.h"
 GC2145 galaxyCore;
 Camera cam(galaxyCore);
 #define IMAGE_MODE CAMERA_RGB565
-#error "Unsupported camera (at the moment :) )"
 #endif
 
 // The buffer used to capture the frame
@@ -108,9 +108,11 @@ void setup() {
   }
 
   Display.begin();
-  dsi_configueCLUT((uint32_t*)palette);
 
-  outfb.setBuffer((uint8_t*)SDRAM.malloc(1024*1024));
+  if (IMAGE_MODE == CAMERA_GRAYSCALE) {
+    dsi_configueCLUT((uint32_t*)palette);
+  }
+  outfb.setBuffer((uint8_t*)SDRAM.malloc(1024 * 1024));
 
   // clear the display (gives a nice black background)
   dsi_lcdClear(0);
@@ -119,6 +121,8 @@ void setup() {
   dsi_drawCurrentFrameBuffer();
 }
 
+#define HTONS(x)    (((x >> 8) & 0x00FF) | ((x << 8) & 0xFF00))
+
 void loop() {
 
   // Grab frame and write to another framebuffer
@@ -128,13 +132,20 @@ void loop() {
     // this only works if the camera feed is 320x240 and the area where we want to display is 640x480
     for (int i = 0; i < 320; i++) {
       for (int j = 0; j < 240; j++) {
-        ((uint8_t*)outfb.getBuffer())[j * 2 + (i * 2) * 480] = ((uint8_t*)fb.getBuffer())[i + j * 320];
-        ((uint8_t*)outfb.getBuffer())[j * 2 + (i * 2) * 480 + 1] = ((uint8_t*)fb.getBuffer())[i + j * 320];
-        ((uint8_t*)outfb.getBuffer())[j * 2 + (i * 2 + 1) * 480] = ((uint8_t*)fb.getBuffer())[i + j * 320];
-        ((uint8_t*)outfb.getBuffer())[j * 2 + (i * 2 + 1) * 480 + 1] = ((uint8_t*)fb.getBuffer())[i + j * 320];
+        if (IMAGE_MODE == CAMERA_GRAYSCALE) {
+          ((uint8_t*)outfb.getBuffer())[j * 2 + (i * 2) * 480] = ((uint8_t*)fb.getBuffer())[i + j * 320];
+          ((uint8_t*)outfb.getBuffer())[j * 2 + (i * 2) * 480 + 1] = ((uint8_t*)fb.getBuffer())[i + j * 320];
+          ((uint8_t*)outfb.getBuffer())[j * 2 + (i * 2 + 1) * 480] = ((uint8_t*)fb.getBuffer())[i + j * 320];
+          ((uint8_t*)outfb.getBuffer())[j * 2 + (i * 2 + 1) * 480 + 1] = ((uint8_t*)fb.getBuffer())[i + j * 320];
+        } else {
+          ((uint16_t*)outfb.getBuffer())[j * 2 + (i * 2) * 480] = HTONS(((uint16_t*)fb.getBuffer())[i + j * 320]);
+          ((uint16_t*)outfb.getBuffer())[j * 2 + (i * 2) * 480 + 1] = HTONS(((uint16_t*)fb.getBuffer())[i + j * 320]);
+          ((uint16_t*)outfb.getBuffer())[j * 2 + (i * 2 + 1) * 480] = HTONS(((uint16_t*)fb.getBuffer())[i + j * 320]);
+          ((uint16_t*)outfb.getBuffer())[j * 2 + (i * 2 + 1) * 480 + 1] = HTONS(((uint16_t*)fb.getBuffer())[i + j * 320]);
+        }
       }
     }
-    dsi_lcdDrawImage((void*)outfb.getBuffer(), (void*)dsi_getCurrentFrameBuffer(), 480, 640, DMA2D_INPUT_L8);
+    dsi_lcdDrawImage((void*)outfb.getBuffer(), (void*)dsi_getCurrentFrameBuffer(), 480, 640, IMAGE_MODE == CAMERA_GRAYSCALE ? DMA2D_INPUT_L8 : DMA2D_INPUT_RGB565);
     dsi_drawCurrentFrameBuffer();
   } else {
     blinkLED(20);