DevVGA.h revision ad290511521ce8388a9926b165241ecf83c330a7
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * DevVGA - VBox VGA/VESA device, internal header.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * Copyright (C) 2006-2013 Oracle Corporation
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * This file is part of VirtualBox Open Source Edition (OSE), as
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * available from http://www.virtualbox.org. This file is free software;
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * you can redistribute it and/or modify it under the terms of the GNU
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * General Public License (GPL) as published by the Free Software
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * Foundation, in version 2 as it comes in the "COPYING" file of the
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * --------------------------------------------------------------------
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * This code is based on:
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * QEMU internal VGA defines.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * Copyright (c) 2003-2004 Fabrice Bellard
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * Permission is hereby granted, free of charge, to any person obtaining a copy
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * of this software and associated documentation files (the "Software"), to deal
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * in the Software without restriction, including without limitation the rights
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * copies of the Software, and to permit persons to whom the Software is
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * furnished to do so, subject to the following conditions:
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * The above copyright notice and this permission notice shall be included in
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * all copies or substantial portions of the Software.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * THE SOFTWARE.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/** Use VBE bytewise I/O. Only needed for Windows Longhorn/Vista betas and backwards compatibility. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/** Use VBE new dynamic mode list.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * If this is not defined, no checks are carried out to see if the modes all
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk * fit into the framebuffer! See the VRAM_SIZE_FIX define. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/** The default amount of VRAM. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/** The maximum amount of VRAM. Limited by VBOX_MAX_ALLOC_PAGE_COUNT. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/** The minimum amount of VRAM. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#endif /* VBOX_WITH_HGSMI */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/* bochs VBE support */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/* Cross reference with <VBox/Hardware/VBoxVideoVBE.h> */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#define VBE_DISPI_INDEX_NB_SAVED 0xb /* Number of saved registers (vbe_regs array) */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#define VBE_DISPI_INDEX_NB 0xc /* Total number of VBE registers */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#endif /* !CONFIG_BOCHS_VBE */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenktypedef struct vga_retrace_s {
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned frame_cclks; /* Character clocks per frame. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned cclk_ns; /* Character clock duration in ns. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned vb_start; /* Vertical blanking start (scanline). */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned vb_end; /* Vertical blanking end (scanline). */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned vb_end_ns; /* Vertical blanking end time (length) in ns. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned vs_start; /* Vertical sync start (scanline). */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned vs_end; /* Vertical sync end (scanline). */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned vs_start_ns; /* Vertical sync start time in ns. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned vs_end_ns; /* Vertical sync end time in ns. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned h_total; /* Horizontal total (cclks per scanline). */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned h_total_ns; /* Scanline duration in ns. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned hb_start; /* Horizontal blanking start (cclk). */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned hb_end; /* Horizontal blanking end (cclk). */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned hb_end_ns; /* Horizontal blanking end time (length) in ns. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned v_freq_hz; /* Vertical refresh rate to emulate. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned long vram_offset; \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned int vram_size; \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /* display refresh support */ \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t last_width, last_height; /* in chars or pixels */ \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t last_scr_width, last_scr_height; /* in pixels */ \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned int (*rgb_to_pixel)(unsigned int r, \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk unsigned int g, unsigned b); \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /* hardware mouse cursor support */ \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk void (*cursor_invalidate)(struct VGAState *s); \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk void (*cursor_draw_line)(struct VGAState *s, uint8_t *d, int y); \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /* tell for each page if it has been updated since the last time */ \
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#else /* VBOX */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk/* bird: Since we've changed types, reordered members, done alignment
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk paddings and more, VGA_STATE_COMMON was added directly to the
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk struct to make it more readable and easier to handle. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenktypedef void FNGETOFFSETS(struct VGAState *s, uint32_t *pline_offset, uint32_t *pstart_addr, uint32_t *pline_compare);
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenktypedef void FNGETRESOLUTION(struct VGAState *s, int *pwidth, int *pheight);
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenktypedef unsigned int FNRGBTOPIXEL(unsigned int r, unsigned int g, unsigned b);
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenktypedef void FNCURSORINVALIDATE(struct VGAState *s);
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenktypedef void FNCURSORDRAWLINE(struct VGAState *s, uint8_t *d, int y);
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#endif /* VBOX */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenktypedef struct VGAState {
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk#else /* VBOX */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk R3PTRTYPE(FNCURSORINVALIDATE *) cursor_invalidate;
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /* display refresh support */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t last_width, last_height; /* in chars or pixels */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t last_scr_width, last_scr_height; /* in pixels */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /* hardware mouse cursor support */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /* tell for each page if it has been updated since the last time */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** end-of-common-state-marker */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Pointer to the device instance - RC Ptr. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Pointer to the GC vram mapping. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Pointer to the device instance - R3 Ptr. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** LUN\#0: The display port base interface. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** LUN\#0: The display port interface. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk# if defined(VBOX_WITH_HGSMI) && (defined(VBOX_WITH_VIDEOHWACCEL) || defined(VBOX_WITH_CRHGSMI))
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** LUN\#0: VBVA callbacks interface */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Pointer to base interface of the driver. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Pointer to display connector interface of the driver. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Refresh timer handle - HC. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Pointer to the device instance - R0 Ptr. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** The R0 vram pointer... */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** The host window handle */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** The R3 FIFO pointer. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** The R0 FIFO pointer. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** R3 Opaque pointer to svga state. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** R3 Opaque pointer to 3d state. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** R3 Opaque pointer to a copy of the first 32k of the framebuffer before switching into svga mode. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Guest physical address of the FIFO memory range. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Size in bytes of the FIFO memory range. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** SVGA id. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** SVGA extensions enabled or not. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** SVGA memory area configured status. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Device is busy handling FIFO requests. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Traces (dirty page detection) enabled or not. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Guest OS identifier. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Scratch region size. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Scratch array. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t au32ScratchRegion[VMSVGA_SCRATCH_SIZE];
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Irq status. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Irq mask. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Pitch lock. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Current GMR id. (SVGA_REG_GMR_ID) */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Register caps. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Physical address of command mmio range. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Port io index register. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** FIFO request semaphore. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** FIFO IO Thread. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Maximum width supported. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Maximum height supported. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Action flags */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** SVGA 3d extensions enabled or not. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** VRAM page monitoring enabled or not. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** The number of monitors. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Current refresh timer interval. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Bitmap tracking dirty pages. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk uint32_t au32DirtyBitmap[VGA_VRAM_MAX / PAGE_SIZE / 32];
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Flag indicating that there are dirty bits. This is used to optimize the handler resetting. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** LFB was updated flag. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Indicates if the GC extensions are enabled or not. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Indicates if the R0 extensions are enabled or not. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Flag indicating that the VGA memory in the 0xa0000-0xbffff region has been remapped to allow direct access. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** Whether to render the guest VRAM to the framebuffer memory. False only for some LFB modes. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /* Whether the SVGA emulation is enabled or not. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** The physical address the VRAM was assigned. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** The critical section protect the instance data. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** The PCI device. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk STAMCOUNTER StatMapPage; /**< Counts IOMMMIOMapMMIO2Page calls. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk STAMCOUNTER StatUpdateDisp; /**< Counts vgaPortUpdateDisplay calls. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /* Keep track of ring 0 latched accesses to the VGA MMIO memory. */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** VBE read/write data/index flags */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** VBE write data/index one byte buffer */
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk /** VBE Extra Data write address one byte buffer */
bool fRealRetrace;
# ifdef VBE_NEW_DYN_LIST
# ifdef VBOX_WITH_HGSMI
# ifdef VBOX_WITH_WDDM
} dummy;
} VGAState;
#ifdef VBOX
#ifdef VBE_NEW_DYN_LIST
* @remark duplicated in vbe.h.
typedef struct VBEHeader
} VBEHeader;
* @remark duplicated in vbe.h. */
* @remark duplicated in vbe.h. */
* @remark duplicated in vbe.h. */
static inline int c6_to_8(int v)
#ifdef VBOX_WITH_HGSMI
int VBVAGetScreenInfo(PVGASTATE pVGAState, unsigned uScreenId, struct VBVAINFOSCREEN *pScreen, void **ppvVram);
# ifdef VBOX_WITH_VIDEOHWACCEL
#ifdef VBOX_WITH_HGSMI
#define PPDMIDISPLAYVBVACALLBACKS_2_PVGASTATE(_pcb) ( (PVGASTATE)((uint8_t *)(_pcb) - RT_OFFSETOF(VGASTATE, IVBVACallbacks)) )
# ifdef VBOX_WITH_CRHGSMI
int vboxVDMACrHgsmiCommandCompleteAsync(PPDMIDISPLAYVBVACALLBACKS pInterface, PVBOXVDMACMD_CHROMIUM_CMD pCmd, int rc);
int vboxVDMACrHgsmiControlCompleteAsync(PPDMIDISPLAYVBVACALLBACKS pInterface, PVBOXVDMACMD_CHROMIUM_CTL pCmd, int rc);
void *pvCompletion);
# ifdef VBOX_WITH_VDMA
# ifdef VBOX_WITH_CRHGSMI
# ifdef VBOX_WITH_VMSVGA
int vgaR3UpdateDisplay(PVGASTATE pVGAState, unsigned xStart, unsigned yStart, unsigned width, unsigned height);
#ifndef VBOX
int poffset, int w,
unsigned int color_xor);
int poffset, int w,
unsigned int color_xor);
int poffset, int w,
unsigned int color_xor);