Bootloader add GOP support and working on NewFS support.

Signed-off-by: Amlal El Mahrouss <amlalelmahrouss@icloud.com>

3 files changed, 32 insertions, 2 deletions

diff --git a/Private/NewBoot/BootKit/BootKit.hxx b/Private/NewBoot/BootKit/BootKit.hxx
index 766749bd..6fdbacaf 100644
--- a/Private/NewBoot/BootKit/BootKit.hxx
+++ b/Private/NewBoot/BootKit/BootKit.hxx
@@ -86,6 +86,7 @@ class BImageReader final {
   CharacterType mPath[kPathLen];
   BTextWriter mWriter;
   BATADevice mDevice;
+  bool mCached{false};
 };
 
 /***********************************************************************************/
@@ -134,4 +135,16 @@ inline UInt32 In32(UInt16 port) {
   return value;
 }
 
+/***********************************************************************************/
+/// Framebuffer.
+/***********************************************************************************/
+
+#define RGB(R, G, B) (UInt32)(0x##R##G##B)
+
+const UInt32 kRgbRed = 0x000000FF;
+const UInt32 kRgbGreen = 0x0000FF00;
+const UInt32 kRgbBlue = 0x00FF0000;
+const UInt32 kRgbBlack = 0x00000000;
+const UInt32 kRgbWhite = 0x00FFFFFF;
+
 #endif  // __EFI_x86_64__
diff --git a/Private/NewBoot/Source/Entrypoint.cxx b/Private/NewBoot/Source/Entrypoint.cxx
index 6a778143..ff118f8a 100644
--- a/Private/NewBoot/Source/Entrypoint.cxx
+++ b/Private/NewBoot/Source/Entrypoint.cxx
@@ -7,6 +7,7 @@
  *      ========================================================
  */
 
+#include "EFIKit/EFI.hxx"
 #define __BOOTLOADER__ 1
 
 #include <BootKit/BootKit.hxx>
@@ -14,11 +15,25 @@
 #include <KernelKit/PE.hpp>
 #include <NewKit/Ref.hpp>
 
-// don't remove EfiGUID, it will call initializer_list!
+STATIC Void DrawBackground() {
+  EfiGUID gopGuid = EfiGUID(EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID);
+  EfiGraphicsOutputProtocol* gop = nullptr;
 
-EFI_EXTERN_C int EfiMain(EfiHandlePtr ImageHandle,
+  BS->LocateProtocol(&gopGuid, nullptr, (void**)&gop);
+
+  for (int w = 0; w < gop->Mode->Info->VerticalResolution; ++w) {
+    for (int h = 0; h < gop->Mode->Info->HorizontalResolution; ++h) {
+      *((UInt32*)(gop->Mode->FrameBufferBase +
+                  4 * gop->Mode->Info->PixelsPerScanLine * w + 4 * h)) =
+          RGB(20, 20, 20);
+    }
+  }
+}
+
+EFI_EXTERN_C Int EfiMain(EfiHandlePtr ImageHandle,
                          EfiSystemTable* SystemTable) {
   InitEFI(SystemTable);
+  DrawBackground();
 
   BTextWriter writer;
 
diff --git a/Private/NewBoot/Source/ImageReader.cxx b/Private/NewBoot/Source/ImageReader.cxx
index b714c21f..98e025a8 100644
--- a/Private/NewBoot/Source/ImageReader.cxx
+++ b/Private/NewBoot/Source/ImageReader.cxx
@@ -66,5 +66,7 @@ HCore::VoidPtr BImageReader::Fetch(SizeT &size) {
 
   /// get file catalog with mPath inside it.
 
+  this->mCached = true;
+
   return nullptr;
 }