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-rw-r--r--UefiMonitorTest/UefiMonitorTest.c60
-rw-r--r--UefiMonitorTest/UefiMonitorTest.h14
2 files changed, 63 insertions, 11 deletions
diff --git a/UefiMonitorTest/UefiMonitorTest.c b/UefiMonitorTest/UefiMonitorTest.c
index 8dda9b7..084a8b9 100644
--- a/UefiMonitorTest/UefiMonitorTest.c
+++ b/UefiMonitorTest/UefiMonitorTest.c
@@ -12,6 +12,14 @@
#include "UefiMonitorTest.h"
+CONST EFI_PIXEL_BITMASK mRgbPixelMasks = {
+ 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000
+};
+
+CONST EFI_PIXEL_BITMASK mBgrPixelMasks = {
+ 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000
+};
+
STATIC
VOID
PrepareGraphicsInfo (
@@ -19,31 +27,61 @@ PrepareGraphicsInfo (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop
)
{
+ CONST EFI_PIXEL_BITMASK *BitMask;
+ UINT32 PixelWidth;
+ INT8 PixelShl[4];
+ INT8 PixelShr[4];
+
ASSERT (Graphics != NULL);
ASSERT (Gop != NULL);
- Graphics->Gop = Gop;
- Graphics->FrontBuffer = (UINT8 *)Gop->Mode->FrameBufferBase;
- Graphics->BufferSize = Gop->Mode->FrameBufferSize;
- Graphics->BackBuffer = AllocateCopyPool (Graphics->BufferSize, Graphics->FrontBuffer);
- ASSERT (Graphics->BackBuffer != NULL);
- Graphics->Width = Gop->Mode->Info->HorizontalResolution;
- Graphics->Height = Gop->Mode->Info->VerticalResolution;
- Graphics->PixelWidth = 4; // A pixel is 32-bits
- Graphics->Pitch = Graphics->PixelWidth * Gop->Mode->Info->PixelsPerScanLine;
+ switch (Gop->Mode->Info->PixelFormat) {
+ case PixelRedGreenBlueReserved8BitPerColor:
+ BitMask = &mRgbPixelMasks;
+ break;
+
+ case PixelBlueGreenRedReserved8BitPerColor:
+ BitMask = &mBgrPixelMasks;
+ break;
+
+ case PixelBitMask:
+ BitMask = &Gop->Mode->Info->PixelInformation;
+ break;
+
+ case PixelBltOnly:
+ ASSERT (FALSE);
+ //return RETURN_UNSUPPORTED;
+
+ default:
+ ASSERT (FALSE);
+ // return RETURN_INVALID_PARAMETER;
+ }
DEBUG ((
DEBUG_INFO,
"GOP information:\n"
"Mode: %d\n"
- "Support a physical frame buffer: %s\n"
"Framebuffer address, size: %x, %d\n"
"Screen width x height: %d x %d\n",
Gop->Mode->Mode,
- (Gop->Mode->Info->PixelFormat == PixelBltOnly) ? L"NO" : L"YES",
Gop->Mode->FrameBufferBase, Gop->Mode->FrameBufferSize,
Gop->Mode->Info->HorizontalResolution, Gop->Mode->Info->VerticalResolution
));
+
+ ParseGraphicsPixelFormat (BitMask, &PixelWidth, PixelShl, PixelShr);
+
+ Graphics->Gop = Gop;
+ Graphics->FrontBuffer = (UINT8 *)Gop->Mode->FrameBufferBase;
+ Graphics->BufferSize = Gop->Mode->FrameBufferSize;
+ Graphics->BackBuffer = AllocateCopyPool (Graphics->BufferSize, Graphics->FrontBuffer);
+ ASSERT (Graphics->BackBuffer != NULL);
+ Graphics->Width = Gop->Mode->Info->HorizontalResolution;
+ Graphics->Height = Gop->Mode->Info->VerticalResolution;
+ CopyMem (&Graphics->PixelMasks, BitMask, sizeof (*BitMask));
+ CopyMem (Graphics->PixelShl, PixelShl, sizeof (PixelShl));
+ CopyMem (Graphics->PixelShr, PixelShr, sizeof (PixelShr));
+ Graphics->PixelWidth = PixelWidth;
+ Graphics->Pitch = Graphics->PixelWidth * Gop->Mode->Info->PixelsPerScanLine;
}
STATIC
diff --git a/UefiMonitorTest/UefiMonitorTest.h b/UefiMonitorTest/UefiMonitorTest.h
index 97ada85..eb49249 100644
--- a/UefiMonitorTest/UefiMonitorTest.h
+++ b/UefiMonitorTest/UefiMonitorTest.h
@@ -28,6 +28,20 @@ typedef struct {
///
UINT32 Height;
///
+ /// Bit-mask defines what bits are used for different colors.
+ ///
+ EFI_PIXEL_BITMASK PixelMasks;
+ ///
+ /// Amount of bits to shift left.
+ /// R-G-B-Rsvd
+ ///
+ INT8 PixelShl[4];
+ ///
+ /// Amount of bits to shift right.
+ /// R-G-B-Rsvd
+ ///
+ INT8 PixelShr[4];
+ ///
/// The size of pixel color in bytes.
///
UINT32 PixelWidth;