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127 lines
3.0 KiB
C
127 lines
3.0 KiB
C
/** @file
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This file is part of OpenCanopy, OpenCore GUI.
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Copyright (c) 2018-2019, Download-Fritz. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-3-Clause
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**/
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#include <Uefi.h>
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#include <Protocol/GraphicsOutput.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include "../GuiIo.h"
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#define MIN_RESOLUTION_HORIZONTAL 640U
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#define MIN_RESOLUTION_VERTICAL 480U
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struct GUI_OUTPUT_CONTEXT_ {
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EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop;
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};
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STATIC
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EFI_GRAPHICS_OUTPUT_PROTOCOL *
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InternalGuiOutputLocateGop (
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VOID
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)
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{
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EFI_STATUS Status;
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EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop;
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Status = gBS->HandleProtocol (
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gST->ConsoleOutHandle,
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&gEfiGraphicsOutputProtocolGuid,
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(VOID **)&Gop
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);
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if (EFI_ERROR (Status)) {
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//
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// Do not fall back to other GOP instances to match AppleEvent.
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//
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return NULL;
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}
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return Gop;
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}
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GUI_OUTPUT_CONTEXT *
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GuiOutputConstruct (
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IN UINT32 Scale
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)
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{
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// TODO: alloc on the fly?
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STATIC GUI_OUTPUT_CONTEXT Context;
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EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop;
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Gop = InternalGuiOutputLocateGop ();
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if (Gop == NULL) {
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return NULL;
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}
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if ( (Gop->Mode->Info->HorizontalResolution < MIN_RESOLUTION_HORIZONTAL * Scale)
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|| (Gop->Mode->Info->VerticalResolution < MIN_RESOLUTION_VERTICAL * Scale))
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{
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DEBUG ((
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DEBUG_INFO,
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"OCUI: Expected at least %dx%d for resolution, actual %dx%d\n",
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MIN_RESOLUTION_HORIZONTAL * Scale,
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MIN_RESOLUTION_VERTICAL * Scale,
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Context.Gop->Mode->Info->HorizontalResolution,
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Context.Gop->Mode->Info->VerticalResolution
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));
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return NULL;
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}
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Context.Gop = Gop;
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return &Context;
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}
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EFI_STATUS
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EFIAPI
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GuiOutputBlt (
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IN GUI_OUTPUT_CONTEXT *Context,
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IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer OPTIONAL,
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IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
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IN UINTN SourceX,
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IN UINTN SourceY,
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IN UINTN DestinationX,
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IN UINTN DestinationY,
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IN UINTN Width,
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IN UINTN Height,
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IN UINTN Delta OPTIONAL
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)
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{
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return Context->Gop->Blt (
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Context->Gop,
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BltBuffer,
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BltOperation,
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SourceX,
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SourceY,
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DestinationX,
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DestinationY,
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Width,
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Height,
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Delta
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);
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}
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CONST EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *
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GuiOutputGetInfo (
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IN GUI_OUTPUT_CONTEXT *Context
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)
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{
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return Context->Gop->Mode->Info;
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}
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VOID
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GuiOutputDestruct (
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IN GUI_OUTPUT_CONTEXT *Context
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)
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{
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ASSERT (Context != NULL);
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ZeroMem (Context, sizeof (*Context));
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}
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