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
  21 #define EFI_UGA_DRAW_PROTOCOL_GUID \
  22   { \
  23     0x982c298b, 0xf4fa, 0x41cb, {0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 } \
  24   }
  25
  26 typedef struct _EFI_UGA_DRAW_PROTOCOL EFI_UGA_DRAW_PROTOCOL;
  27
  28 /**
  29   Return the current video mode information.
  30
  31   @param  This                  The EFI_UGA_DRAW_PROTOCOL instance.
  32   @param  HorizontalResolution  The size of video screen in pixels in the X dimension.
  33   @param  VerticalResolution    The size of video screen in pixels in the Y dimension.
  34   @param  ColorDepth            Number of bits per pixel, currently defined to be 32.
  35   @param  RefreshRate           The refresh rate of the monitor in Hertz.
  36
  37   @retval EFI_SUCCESS           Mode information returned.
  38   @retval EFI_NOT_STARTED       Video display is not initialized. Call SetMode ()
  39   @retval EFI_INVALID_PARAMETER One of the input args was NULL.
  40
  41 **/
  42 typedef
  43 EFI_STATUS
  44 (EFIAPI *EFI_UGA_DRAW_PROTOCOL_GET_MODE)(
  45   IN  EFI_UGA_DRAW_PROTOCOL *This,
  46   OUT UINT32                *HorizontalResolution,
  47   OUT UINT32                *VerticalResolution,
  48   OUT UINT32                *ColorDepth,
  49   OUT UINT32                *RefreshRate
  50   );
  51
  52 /**
  53   Set the current video mode information.
  54
  55   @param  This                 The EFI_UGA_DRAW_PROTOCOL instance.
  56   @param  HorizontalResolution The size of video screen in pixels in the X dimension.
  57   @param  VerticalResolution   The size of video screen in pixels in the Y dimension.
  58   @param  ColorDepth           Number of bits per pixel, currently defined to be 32.
  59   @param  RefreshRate          The refresh rate of the monitor in Hertz.
  60
  61   @retval EFI_SUCCESS          Mode information returned.
  62   @retval EFI_NOT_STARTED      Video display is not initialized. Call SetMode ()
  63
  64 **/
  65 typedef
  66 EFI_STATUS
  67 (EFIAPI *EFI_UGA_DRAW_PROTOCOL_SET_MODE)(
  68   IN  EFI_UGA_DRAW_PROTOCOL *This,
  69   IN  UINT32                HorizontalResolution,
  70   IN  UINT32                VerticalResolution,
  71   IN  UINT32                ColorDepth,
  72   IN  UINT32                RefreshRate
  73   );
  74
  75 typedef struct {
  76   UINT8 Blue;
  77   UINT8 Green;
  78   UINT8 Red;
  79   UINT8 Reserved;
  80 } EFI_UGA_PIXEL;
  81
  82 typedef union {
  83   EFI_UGA_PIXEL Pixel;
  84   UINT32        Raw;
  85 } EFI_UGA_PIXEL_UNION;
  86
  87 ///
  88 /// Enumration value for actions of Blt operations.
  89 ///
  90 typedef enum {
  91   EfiUgaVideoFill,          ///< Write data from the  BltBuffer pixel (SourceX, SourceY)
  92                             ///< directly to every pixel of the video display rectangle
  93                             ///< (DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height).
  94                             ///< Only one pixel will be used from the BltBuffer. Delta is NOT used.
  95
  96   EfiUgaVideoToBltBuffer,   ///< Read data from the video display rectangle
  97                             ///< (SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
  98                             ///< the BltBuffer rectangle (DestinationX, DestinationY )
  99                             ///< (DestinationX + Width, DestinationY + Height). If DestinationX or
 100                             ///< DestinationY is not zero then Delta must be set to the length in bytes
 101                             ///< of a row in the BltBuffer.
 102
 103   EfiUgaBltBufferToVideo,   ///< Write data from the  BltBuffer rectangle
 104                             ///< (SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
 105                             ///< video display rectangle (DestinationX, DestinationY)
 106                             ///< (DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
 107                             ///< not zero then Delta must be set to the length in bytes of a row in the
 108                             ///< BltBuffer.
 109
 110   EfiUgaVideoToVideo,       ///< Copy from the video display rectangle (SourceX, SourceY)
 111                             ///< (SourceX + Width, SourceY + Height) .to the video display rectangle
 112                             ///< (DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height).
 113                             ///< The BltBuffer and Delta  are not used in this mode.
 114
 115   EfiUgaBltMax              ///< Maxmimum value for enumration value of Blt operation. If a Blt operation
 116                             ///< larger or equal to this enumration value, it is invalid.
 117 } EFI_UGA_BLT_OPERATION;
 118
 119 /**
 120     Blt a rectangle of pixels on the graphics screen.
 121
 122     @param[in] This          - Protocol instance pointer.
 123     @param[in] BltBuffer     - Buffer containing data to blit into video buffer. This
 124                                buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL)
 125     @param[in] BltOperation  - Operation to perform on BlitBuffer and video memory
 126     @param[in] SourceX       - X coordinate of source for the BltBuffer.
 127     @param[in] SourceY       - Y coordinate of source for the BltBuffer.
 128     @param[in] DestinationX  - X coordinate of destination for the BltBuffer.
 129     @param[in] DestinationY  - Y coordinate of destination for the BltBuffer.
 130     @param[in] Width         - Width of rectangle in BltBuffer in pixels.
 131     @param[in] Height        - Hight of rectangle in BltBuffer in pixels.
 132     @param[in] Delta         - OPTIONAL
 133
 134     @retval EFI_SUCCESS           - The Blt operation completed.
 135     @retval EFI_INVALID_PARAMETER - BltOperation is not valid.
 136     @retval EFI_DEVICE_ERROR      - A hardware error occured writting to the video buffer.
 137
 138 **/
 139 typedef
 140 EFI_STATUS
 141 (EFIAPI *EFI_UGA_DRAW_PROTOCOL_BLT)(
 142   IN  EFI_UGA_DRAW_PROTOCOL                   * This,
 143   IN  EFI_UGA_PIXEL                           * BltBuffer, OPTIONAL
 144   IN  EFI_UGA_BLT_OPERATION                   BltOperation,
 145   IN  UINTN                                   SourceX,
 146   IN  UINTN                                   SourceY,
 147   IN  UINTN                                   DestinationX,
 148   IN  UINTN                                   DestinationY,
 149   IN  UINTN                                   Width,
 150   IN  UINTN                                   Height,
 151   IN  UINTN                                   Delta         OPTIONAL
 152   );
 153
 154 ///
 155 /// This protocol provides a basic abstraction to set video modes and
 156 /// copy pixels to and from the graphics controller's frame buffer.
 157 ///
 158 struct _EFI_UGA_DRAW_PROTOCOL {
 159   EFI_UGA_DRAW_PROTOCOL_GET_MODE  GetMode;
 160   EFI_UGA_DRAW_PROTOCOL_SET_MODE  SetMode;
 161   EFI_UGA_DRAW_PROTOCOL_BLT       Blt;
 162 };
 163
 164 extern EFI_GUID gEfiUgaDrawProtocolGuid;
 165
 166 #endif