MdePkg/Include/Protocol/UgaDraw.h

   1 /** @file
   2   UGA Draw protocol from the EFI 1.10 specification.
   3
   4   Abstraction of a very simple graphics device.
   5
   6   Copyright (c) 2006 - 2008, Intel Corporation
   7   All rights reserved. This program and the accompanying materials
   8   are licensed and made available under the terms and conditions of the BSD License
   9   which accompanies this distribution.  The full text of the license may be found at
  10   http://opensource.org/licenses/bsd-license.php
  11
  12   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 #ifndef __UGA_DRAW_H__
  18 #define __UGA_DRAW_H__
  19
  20 #include <PiDxe.h>
  21
  22
  23 #define EFI_UGA_DRAW_PROTOCOL_GUID \
  24   { \
  25     0x982c298b, 0xf4fa, 0x41cb, {0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 } \
  26   }
  27
  28 typedef struct _EFI_UGA_DRAW_PROTOCOL EFI_UGA_DRAW_PROTOCOL;
  29
  30 /**
  31   Return the current video mode information.
  32
  33   @param  This                  Protocol instance pointer.
  34   @param  HorizontalResolution  Current video horizontal resolution in pixels
  35   @param  VerticalResolution    Current video vertical resolution in pixels
  36   @param  ColorDepth            Current video color depth in bits per pixel
  37   @param  RefreshRate           Current video refresh rate in Hz.
  38
  39   @retval EFI_SUCCESS           Mode information returned.
  40   @retval EFI_NOT_STARTED       Video display is not initialized. Call SetMode ()
  41   @retval EFI_INVALID_PARAMETER One of the input args was NULL.
  42
  43 **/
  44 typedef
  45 EFI_STATUS
  46 (EFIAPI *EFI_UGA_DRAW_PROTOCOL_GET_MODE)(
  47   IN  EFI_UGA_DRAW_PROTOCOL *This,
  48   OUT UINT32                *HorizontalResolution,
  49   OUT UINT32                *VerticalResolution,
  50   OUT UINT32                *ColorDepth,
  51   OUT UINT32                *RefreshRate
  52   )
  53 ;
  54
  55 /**
  56   Set the current video mode information.
  57
  58   @param  This                 Protocol instance pointer.
  59   @param  HorizontalResolution Current video horizontal resolution in pixels
  60   @param  VerticalResolution   Current video vertical resolution in pixels
  61   @param  ColorDepth           Current video color depth in bits per pixel
  62   @param  RefreshRate          Current video refresh rate in Hz.
  63
  64   @retval EFI_SUCCESS          Mode information returned.
  65   @retval EFI_NOT_STARTED      Video display is not initialized. Call SetMode ()
  66
  67 **/
  68 typedef
  69 EFI_STATUS
  70 (EFIAPI *EFI_UGA_DRAW_PROTOCOL_SET_MODE)(
  71   IN  EFI_UGA_DRAW_PROTOCOL *This,
  72   IN  UINT32                HorizontalResolution,
  73   IN  UINT32                VerticalResolution,
  74   IN  UINT32                ColorDepth,
  75   IN  UINT32                RefreshRate
  76   )
  77 ;
  78
  79 typedef struct {
  80   UINT8 Blue;
  81   UINT8 Green;
  82   UINT8 Red;
  83   UINT8 Reserved;
  84 } EFI_UGA_PIXEL;
  85
  86 typedef union {
  87   EFI_UGA_PIXEL Pixel;
  88   UINT32        Raw;
  89 } EFI_UGA_PIXEL_UNION;
  90
  91 typedef enum {
  92   EfiUgaVideoFill,
  93   EfiUgaVideoToBltBuffer,
  94   EfiUgaBltBufferToVideo,
  95   EfiUgaVideoToVideo,
  96   EfiUgaBltMax
  97 } EFI_UGA_BLT_OPERATION;
  98
  99 /**
 100   Type specifying a pointer to a function to perform an UGA Blt operation.
 101
 102     The following table defines actions for BltOperations:
 103
 104     <B>EfiUgaVideoFill</B> - Write data from the  BltBuffer pixel (SourceX, SourceY)
 105       directly to every pixel of the video display rectangle
 106       (DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height).
 107       Only one pixel will be used from the BltBuffer. Delta is NOT used.
 108
 109     <B>EfiUgaVideoToBltBuffer</B> - Read data from the video display rectangle
 110       (SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
 111       the BltBuffer rectangle (DestinationX, DestinationY )
 112       (DestinationX + Width, DestinationY + Height). If DestinationX or
 113       DestinationY is not zero then Delta must be set to the length in bytes
 114       of a row in the BltBuffer.
 115
 116     <B>EfiUgaBltBufferToVideo</B> - Write data from the  BltBuffer rectangle
 117       (SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
 118       video display rectangle (DestinationX, DestinationY)
 119       (DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
 120       not zero then Delta must be set to the length in bytes of a row in the
 121       BltBuffer.
 122
 123     <B>EfiUgaVideoToVideo</B> - Copy from the video display rectangle (SourceX, SourceY)
 124      (SourceX + Width, SourceY + Height) .to the video display rectangle
 125      (DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height).
 126      The BltBuffer and Delta  are not used in this mode.
 127
 128
 129     @param[in] This          - Protocol instance pointer.
 130     @param[in] BltBuffer     - Buffer containing data to blit into video buffer. This
 131                                buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL)
 132     @param[in] BltOperation  - Operation to perform on BlitBuffer and video memory
 133     @param[in] SourceX       - X coordinate of source for the BltBuffer.
 134     @param[in] SourceY       - Y coordinate of source for the BltBuffer.
 135     @param[in] DestinationX  - X coordinate of destination for the BltBuffer.
 136     @param[in] DestinationY  - Y coordinate of destination for the BltBuffer.
 137     @param[in] Width         - Width of rectangle in BltBuffer in pixels.
 138     @param[in] Height        - Hight of rectangle in BltBuffer in pixels.
 139     @param[in] Delta         - OPTIONAL
 140
 141     @retval EFI_SUCCESS           - The Blt operation completed.
 142     @retval EFI_INVALID_PARAMETER - BltOperation is not valid.
 143     @retval EFI_DEVICE_ERROR      - A hardware error occured writting to the video buffer.
 144
 145 --*/
 146 typedef
 147 EFI_STATUS
 148 (EFIAPI *EFI_UGA_DRAW_PROTOCOL_BLT)(
 149   IN  EFI_UGA_DRAW_PROTOCOL                   * This,
 150   IN  EFI_UGA_PIXEL                           * BltBuffer, OPTIONAL
 151   IN  EFI_UGA_BLT_OPERATION                   BltOperation,
 152   IN  UINTN                                   SourceX,
 153   IN  UINTN                                   SourceY,
 154   IN  UINTN                                   DestinationX,
 155   IN  UINTN                                   DestinationY,
 156   IN  UINTN                                   Width,
 157   IN  UINTN                                   Height,
 158   IN  UINTN                                   Delta         OPTIONAL
 159   );
 160
 161 /**
 162   This protocol provides a basic abstraction to set video modes and
 163   copy pixels to and from the graphics controller's frame buffer.
 164
 165   @par Protocol Description:
 166   The EFI_UGA_DRAW_PROTOCOL provides a software abstraction to allow pixels to be drawn
 167   directly to the frame buffer. The EFI_UGA_DRAW_PROTOCOL is designed to be lightweight and
 168   to support the basic needs of graphics output prior to Operating System boot.
 169
 170   @param GetMode
 171   Returns information about the geometry and configuration of the
 172   graphics controller's current frame buffer configuration.
 173
 174   @param SetMode
 175   Set the graphics device into a given mode and clears the frame buffer to black.
 176
 177   @param Blt
 178   Software abstraction to draw on the video device's frame buffer.
 179 **/
 180 struct _EFI_UGA_DRAW_PROTOCOL {
 181   EFI_UGA_DRAW_PROTOCOL_GET_MODE  GetMode;
 182   EFI_UGA_DRAW_PROTOCOL_SET_MODE  SetMode;
 183   EFI_UGA_DRAW_PROTOCOL_BLT       Blt;
 184 };
 185
 186 extern EFI_GUID gEfiUgaDrawProtocolGuid;
 187
 188 #endif