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use crate::prelude::*;
#[derive(Copy, Clone, Debug)]
#[repr(C)]
pub struct GraphicsBltPixel {
pub Blue: u8,
pub Green: u8,
pub Red: u8,
pub Reserved: u8,
}
#[derive(Copy, Clone, Debug)]
#[repr(C)]
pub enum GraphicsBltOp {
// Write data from the first buffer pixel to every pixel of the display
VideoFill,
// Copy from the display to the buffer
VideoToBuffer,
// Copy from the buffer to the display
BufferToVideo,
// Copy from the display to the display
VideoToVideo,
}
#[derive(Copy, Clone, Debug)]
#[repr(C)]
pub enum GraphicsPixelFormat {
///
/// A pixel is 32-bits and byte zero represents red, byte one represents green,
/// byte two represents blue, and byte three is reserved. This is the definition
/// for the physical frame buffer. The byte values for the red, green, and blue
/// components represent the color intensity. This color intensity value range
/// from a minimum intensity of 0 to maximum intensity of 255.
///
PixelRedGreenBlueReserved8BitPerColor,
///
/// A pixel is 32-bits and byte zero represents blue, byte one represents green,
/// byte two represents red, and byte three is reserved. This is the definition
/// for the physical frame buffer. The byte values for the red, green, and blue
/// components represent the color intensity. This color intensity value range
/// from a minimum intensity of 0 to maximum intensity of 255.
///
PixelBlueGreenRedReserved8BitPerColor,
///
/// The Pixel definition of the physical frame buffer.
///
PixelBitMask,
///
/// This mode does not support a physical frame buffer.
///
PixelBltOnly,
///
/// Valid EFI_GRAPHICS_PIXEL_FORMAT enum values are less than this value.
///
PixelFormatMax,
}
#[derive(Copy, Clone, Debug)]
#[repr(C)]
pub struct GraphicsPixelBitmask {
pub RedMask: u32,
pub GreenMask: u32,
pub BlueMask: u32,
pub ReservedMask: u32,
}
#[derive(Copy, Clone, Debug)]
#[repr(C)]
pub struct GraphicsOutputModeInfo {
/// The version of this data structure. A value of zero represents the
/// EFI_GRAPHICS_OUTPUT_MODE_INFORMATION structure as defined in this specification.
pub Version: u32,
/// The size of video screen in pixels in the X dimension.
pub HorizontalResolution: u32,
/// The size of video screen in pixels in the Y dimension.
pub VerticalResolution: u32,
/// Enumeration that defines the physical format of the pixel. A value of PixelBltOnly
/// implies that a linear frame buffer is not available for this mode.
pub PixelFormat: GraphicsPixelFormat,
/// This bit-mask is only valid if PixelFormat is set to PixelPixelBitMask.
/// A bit being set defines what bits are used for what purpose such as Red, Green, Blue, or Reserved.
pub PixelInformation: GraphicsPixelBitmask,
/// Defines the number of pixel elements per video memory line.
pub PixelsPerScanLine: u32,
}
#[derive(Debug)]
#[repr(C)]
pub struct GraphicsOutputMode {
/// The number of modes supported by QueryMode() and SetMode().
pub MaxMode: u32,
/// Current Mode of the graphics device. Valid mode numbers are 0 to MaxMode -1.
pub Mode: u32,
/// Pointer to read-only EFI_GRAPHICS_OUTPUT_MODE_INFORMATION data.
pub Info: &'static GraphicsOutputModeInfo,
/// Size of Info structure in bytes.
pub SizeOfInfo: usize,
/// Base address of graphics linear frame buffer.
/// Offset zero in FrameBufferBase represents the upper left pixel of the display.
pub FrameBufferBase: usize,
/// Amount of frame buffer needed to support the active mode as defined by
/// PixelsPerScanLine xVerticalResolution x PixelElementSize.
pub FrameBufferSize: usize,
}
#[repr(C)]
pub struct GraphicsOutput {
pub QueryMode: extern "efiapi" fn(
&mut GraphicsOutput,
u32,
&mut usize,
&mut *mut GraphicsOutputModeInfo,
) -> Status,
pub SetMode: extern "efiapi" fn(&mut GraphicsOutput, u32) -> Status,
pub Blt: extern "efiapi" fn(
&mut GraphicsOutput,
*mut GraphicsBltPixel,
GraphicsBltOp,
usize,
usize,
usize,
usize,
usize,
usize,
usize,
) -> Status,
pub Mode: &'static mut GraphicsOutputMode,
}
impl GraphicsOutput {
pub const GUID: Guid = guid!("9042a9de-23dc-4a38-96fb-7aded080516a");
}