uefi/
graphics.rs

1use crate::prelude::*;
2
3#[derive(Copy, Clone, Debug)]
4#[repr(C)]
5pub struct GraphicsBltPixel {
6    pub Blue: u8,
7    pub Green: u8,
8    pub Red: u8,
9    pub Reserved: u8,
10}
11
12#[derive(Copy, Clone, Debug)]
13#[repr(C)]
14pub enum GraphicsBltOp {
15    // Write data from the first buffer pixel to every pixel of the display
16    VideoFill,
17    // Copy from the display to the buffer
18    VideoToBuffer,
19    // Copy from the buffer to the display
20    BufferToVideo,
21    // Copy from the display to the display
22    VideoToVideo,
23}
24
25#[derive(Copy, Clone, Debug)]
26#[repr(C)]
27pub enum GraphicsPixelFormat {
28    ///
29    /// A pixel is 32-bits and byte zero represents red, byte one represents green,
30    /// byte two represents blue, and byte three is reserved. This is the definition
31    /// for the physical frame buffer. The byte values for the red, green, and blue
32    /// components represent the color intensity. This color intensity value range
33    /// from a minimum intensity of 0 to maximum intensity of 255.
34    ///
35    PixelRedGreenBlueReserved8BitPerColor,
36    ///
37    /// A pixel is 32-bits and byte zero represents blue, byte one represents green,
38    /// byte two represents red, and byte three is reserved. This is the definition
39    /// for the physical frame buffer. The byte values for the red, green, and blue
40    /// components represent the color intensity. This color intensity value range
41    /// from a minimum intensity of 0 to maximum intensity of 255.
42    ///
43    PixelBlueGreenRedReserved8BitPerColor,
44    ///
45    /// The Pixel definition of the physical frame buffer.
46    ///
47    PixelBitMask,
48    ///
49    /// This mode does not support a physical frame buffer.
50    ///
51    PixelBltOnly,
52    ///
53    /// Valid EFI_GRAPHICS_PIXEL_FORMAT enum values are less than this value.
54    ///
55    PixelFormatMax,
56}
57
58#[derive(Copy, Clone, Debug)]
59#[repr(C)]
60pub struct GraphicsPixelBitmask {
61    pub RedMask: u32,
62    pub GreenMask: u32,
63    pub BlueMask: u32,
64    pub ReservedMask: u32,
65}
66
67#[derive(Copy, Clone, Debug)]
68#[repr(C)]
69pub struct GraphicsOutputModeInfo {
70    /// The version of this data structure. A value of zero represents the
71    /// EFI_GRAPHICS_OUTPUT_MODE_INFORMATION structure as defined in this specification.
72    pub Version: u32,
73    /// The size of video screen in pixels in the X dimension.
74    pub HorizontalResolution: u32,
75    /// The size of video screen in pixels in the Y dimension.
76    pub VerticalResolution: u32,
77    /// Enumeration that defines the physical format of the pixel. A value of PixelBltOnly
78    /// implies that a linear frame buffer is not available for this mode.
79    pub PixelFormat: GraphicsPixelFormat,
80    /// This bit-mask is only valid if PixelFormat is set to PixelPixelBitMask.
81    /// A bit being set defines what bits are used for what purpose such as Red, Green, Blue, or Reserved.
82    pub PixelInformation: GraphicsPixelBitmask,
83    /// Defines the number of pixel elements per video memory line.
84    pub PixelsPerScanLine: u32,
85}
86
87#[derive(Debug)]
88#[repr(C)]
89pub struct GraphicsOutputMode {
90    /// The number of modes supported by QueryMode() and SetMode().
91    pub MaxMode: u32,
92    /// Current Mode of the graphics device. Valid mode numbers are 0 to MaxMode -1.
93    pub Mode: u32,
94    /// Pointer to read-only EFI_GRAPHICS_OUTPUT_MODE_INFORMATION data.
95    pub Info: &'static GraphicsOutputModeInfo,
96    /// Size of Info structure in bytes.
97    pub SizeOfInfo: usize,
98    /// Base address of graphics linear frame buffer.
99    /// Offset zero in FrameBufferBase represents the upper left pixel of the display.
100    pub FrameBufferBase: usize,
101    /// Amount of frame buffer needed to support the active mode as defined by
102    /// PixelsPerScanLine xVerticalResolution x PixelElementSize.
103    pub FrameBufferSize: usize,
104}
105
106#[repr(C)]
107pub struct GraphicsOutput {
108    pub QueryMode: extern "efiapi" fn(
109        &mut GraphicsOutput,
110        u32,
111        &mut usize,
112        &mut *mut GraphicsOutputModeInfo,
113    ) -> Status,
114    pub SetMode: extern "efiapi" fn(&mut GraphicsOutput, u32) -> Status,
115    pub Blt: extern "efiapi" fn(
116        &mut GraphicsOutput,
117        *mut GraphicsBltPixel,
118        GraphicsBltOp,
119        usize,
120        usize,
121        usize,
122        usize,
123        usize,
124        usize,
125        usize,
126    ) -> Status,
127    pub Mode: &'static mut GraphicsOutputMode,
128}
129
130impl GraphicsOutput {
131    pub const GUID: Guid = guid!("9042a9de-23dc-4a38-96fb-7aded080516a");
132}
uefi/graphics.rs

uefi/
graphics.rs
