Add a picture viewer

Change-Id: I35dd150f415119e80f7463515a70e2d9bd058a14

.gitignore

@@ -20,5 +20,9 @@ kandinsky/fonts/rasterizer
 kandinsky/src/font.c
 kandinsky/src/font.h
 
+# No PicView generated files
+apps/picview/image.raw
+apps/picview/image.c
+
 # Quiz output
 quiz/src/symbols.c

apps/Makefile

@@ -1,4 +1,5 @@
 include apps/graph/Makefile
+#include apps/picview/Makefile
 
 app_objs += $(addprefix apps/,\
   main.o\

apps/main.cpp

@@ -1,6 +1,15 @@
 #include "graph/graph_app.h"
 
+#define USE_PIC_VIEW_APP 0
+#if USE_PIC_VIEW_APP
+#include "picview/picview_app.h"
+#endif
+
 void ion_app() {
+#if USE_PIC_VIEW_APP
+  PicViewApp picViewApp = PicViewApp();
+  picViewApp.run();
+#endif
   GraphApp graphApp = GraphApp();
   graphApp.run();
 }

apps/picview/Makefile

@@ -0,0 +1,18 @@
+app_objs += $(addprefix apps/picview/,\
+  pic_view.o\
+  picview_app.o\
+  picview_controller.o\
+)
+
+apps/picview/pic_view.cpp: apps/picview/image.c
+
+apps/picview/image.c: apps/picview/image.raw
+	@echo "RAW2C   $@"
+	@echo "const /* Needed otherwise the image will eat up all RAM */" > $@
+	@xxd -i $^ >> $@
+
+apps/picview/image.raw: apps/picview/image.png
+	@echo "PNG2RAW $@"
+	@ffmpeg -loglevel panic -vcodec png -i $^ -vcodec rawvideo -f rawvideo -pix_fmt rgb565 $@
+
+products += $(addprefix apps/picview/, image.raw image.c)

apps/picview/pic_view.cpp

@@ -0,0 +1,20 @@
+#include "pic_view.h"
+#include <assert.h>
+
+PicView::PicView() :
+  ChildlessView() {
+}
+
+#include "image.c"
+
+void PicView::drawRect(KDContext * ctx, KDRect rect) const {
+  KDColor * pixels = (KDColor *)apps_picview_image_raw;
+  KDCoordinate width = bounds().width();
+  KDCoordinate height = bounds().height();
+  assert(apps_picview_image_raw_len == width*height*sizeof(KDColor));
+  for (int j=0; j<height; j++) {
+    for (int i=0; i<width; i++) {
+      ctx->setPixel(KDPoint(i,j), pixels[j*width+i]);
+    }
+  }
+}

apps/picview/pic_view.h

@@ -0,0 +1,12 @@
+#ifndef PICVIEW_PIC_VIEW_H
+#define PICVIEW_PIC_VIEW_H
+
+#include <escher.h>
+
+class PicView : public ChildlessView {
+public:
+  PicView();
+  void drawRect(KDContext * ctx, KDRect rect) const override;
+};
+
+#endif

apps/picview/picview_app.cpp

@@ -0,0 +1,11 @@
+#include "picview_app.h"
+
+PicViewApp::PicViewApp() :
+  App(),
+  m_picViewController(PicViewController())
+{
+}
+
+ViewController * PicViewApp::rootViewController() {
+  return &m_picViewController;
+}

apps/picview/picview_app.h

@@ -0,0 +1,16 @@
+#ifndef PICVIEW_PICVIEW_APP_H
+#define PICVIEW_PICVIEW_APP_H
+
+#include <escher.h>
+#include "picview_controller.h"
+
+class PicViewApp : public App {
+public:
+  PicViewApp();
+protected:
+  ViewController * rootViewController() override;
+private:
+  PicViewController m_picViewController;
+};
+
+#endif

apps/picview/picview_controller.cpp

@@ -0,0 +1,18 @@
+#include "picview_controller.h"
+
+PicViewController::PicViewController() :
+  ViewController(),
+  m_view(PicView())
+{
+}
+
+View * PicViewController::view() {
+  return &m_view;
+}
+
+/*
+
+const char * PicViewController::title() const {
+  return "PicView";
+}
+*/

apps/picview/picview_controller.h

@@ -0,0 +1,15 @@
+#ifndef PICVIEW_PICVIEW_CONTROLLER_H
+#define PICVIEW_PICVIEW_CONTROLLER_H
+
+#include <escher.h>
+#include "pic_view.h"
+
+class PicViewController : public ViewController {
+public:
+  PicViewController();
+  View * view() override;
+private:
+  PicView m_view;
+};
+
+#endif