framebuf.h

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/*
 * PROJECT:     ReactOS Boot Video Driver
 * LICENSE:     GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
 *              or MIT (https://spdx.org/licenses/MIT)
 * PURPOSE:     Definitions for framebuffer-specific DisplayController
 *              device boot-time configuration data stored in the
 *              \Registry\Machine\Hardware\Description ARC tree.
 * COPYRIGHT:   Copyright 2023-2026 Hermès Bélusca-Maïto <hermes.belusca-maito@reactos.org>
 */
 
#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct _CM_FRAMEBUF_DEVICE_DATA
{
    CM_VIDEO_DEVICE_DATA;
 
    /* Absolute offset from the start of the video RAM of the framebuffer
     * to be displayed on the monitor. The framebuffer size is obtained by:
     * FrameBufferSize = ScreenHeight * PixelsPerScanLine * BytesPerPixel */
    ULONG FrameBufferOffset;
 
    /* Horizontal and Vertical resolution in pixels */
    ULONG ScreenWidth;
    ULONG ScreenHeight;
 
    /* Number of pixel elements per video memory line. Related to
     * the number of bytes per scan-line (pitch/screen stride) via:
     * Pitch = PixelsPerScanLine * BytesPerPixel */
    ULONG PixelsPerScanLine; 
    ULONG BitsPerPixel;      
 
    /* Pixel physical format for BPP > 8 */
    struct
    {
        ULONG RedMask;
        ULONG GreenMask;
        ULONG BlueMask;
        ULONG ReservedMask;
    } PixelMasks;
 
} CM_FRAMEBUF_DEVICE_DATA, *PCM_FRAMEBUF_DEVICE_DATA;
 
#ifdef __cplusplus
}
#endif
 
/* EOF */