Leaked source code of windows server 2003
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/******************************Module*Header*******************************\
** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!* !! !!* !! WARNING: NOT DDK SAMPLE CODE !!* !! !!* !! This source code is provided for completeness only and should not be !!* !! used as sample code for display driver development. Only those sources !!* !! marked as sample code for a given driver component should be used for !!* !! development purposes. !!* !! !!* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!** Module Name: ddover.h** Content: DirectDraw Overlays implementation macros and definitions** Copyright (c) 1994-1999 3Dlabs Inc. Ltd. All rights reserved.* Copyright (c) 1995-2003 Microsoft Corporation\**************************************************************************/
#ifndef __DDOVER_H
#define __DDOVER_H
// For setting up the VideoPort HAL
#define VIDEOPORT_NUM_CONNECT_INFO 8
#define VIDEOPORT_MAX_FIELD_HEIGHT 0x800
#define VIDEOPORT_MAX_FIELD_WIDTH 0x800
#define VIDEOPORT_MAX_VBI_WIDTH 0x800
#define VIDEOPORT_HREF_ACTIVE_HIGH 1
#define VIDEOPORT_VREF_ACTIVE_HIGH 2
// Defines for VideoOverlay values.
#define VO_ENABLE 1
#define VO_DISABLE 0
#define VO_MIRROR_X 1
#define VO_MIRROR_Y 1
#define VO_COLOR_ORDER_RGB 1
#define VO_COLOR_ORDER_BGR 0
#define VO_YUV_RGB 0
#define VO_YUV_422 1
#define VO_YUV_444 2
#define VO_CF_RGB8888 0
#define VO_CF_RGB4444 1
#define VO_CF_RGB5551 2
#define VO_CF_RGB565 3
#define VO_CF_RGB332 4
#define VO_CF_RGBCI8 5
#define VO_PIXEL_SIZE8 0
#define VO_PIXEL_SIZE16 1
#define VO_PIXEL_SIZE32 2
#define VO_MODE_MAINKEY 0
#define VO_MODE_OVERLAYKEY 1
#define VO_MODE_ALWAYS 2
#define VO_MODE_BLEND 3
#define VO_BLENDSRC_MAIN 0
#define VO_BLENDSRC_REGISTER 1
#define VO_KEY_COLOR 0
#define VO_KEY_ALPHA 1
#define VO_MEMTYPE_FRAMEBUFFER (0 << 30)
#define VO_MEMTYPE_LOCALBUFFER (1 << 30)
typedef struct tagVideoOverlayModeReg{ DWORD Enable : 1; // lsb
DWORD BufferSync : 3; DWORD FieldPolarity : 1; DWORD PixelSize : 2; DWORD ColorFormat : 3; DWORD YUV : 2; DWORD ColorOrder : 1; DWORD LinearColorExtension : 1; DWORD Filter : 2; DWORD DeInterlace : 2; DWORD PatchMode : 2; DWORD Flip : 3; DWORD MirrorX : 1; DWORD MirrorY : 1; DWORD Reserved1 : 7;} VideoOverlayModeReg;
typedef struct tagRDVideoOverlayControlReg{ BYTE Enable : 1; BYTE Mode : 2; BYTE DirectColor : 1; BYTE BlendSrc : 1; BYTE Key : 1; BYTE Reserved : 2;} RDVideoOverlayControlReg;
#define __GP_VIDEO_ENABLE 0x0001
#if WNT_DDRAW
#define FORCED_IN_ORDER_WRITE(target,value) *((volatile ULONG *)(target)) = (value)
#define UPDATE_OVERLAY(pThisDisplay, bWaitForVSync, bUpdateOverlaySize) \
do \ { \ if (pThisDisplay->pGLInfo->dwFlags & GMVF_VBLANK_ENABLED) \ { \ FORCED_IN_ORDER_WRITE ( pThisDisplay->bVBLANKUpdateOverlay, TRUE ); \ } \ else \ { \ if (bWaitForVSync) \ { \ if (READ_GLINT_CTRL_REG(VideoControl) & __GP_VIDEO_ENABLE) \ \ { \ /* only wait for vblank if the monitor is on */ \ LOAD_GLINT_CTRL_REG(IntFlags, INTR_VBLANK_SET); \ while (((READ_GLINT_CTRL_REG(IntFlags)) & INTR_VBLANK_SET) == 0); \ } \ } \ \ if (bUpdateOverlaySize) \ { \ DWORD dwVideoOverlayMode = READ_GLINT_CTRL_REG(VideoOverlayMode); \ LOAD_GLINT_CTRL_REG(VideoOverlayMode, (dwVideoOverlayMode & 0xfffffffe)); \ LOAD_GLINT_CTRL_REG(VideoOverlayWidth, *pThisDisplay->VBLANKUpdateOverlayWidth); \ LOAD_GLINT_CTRL_REG(VideoOverlayHeight, *pThisDisplay->VBLANKUpdateOverlayHeight); \ LOAD_GLINT_CTRL_REG(VideoOverlayMode, dwVideoOverlayMode); \ } \ \ LOAD_GLINT_CTRL_REG(VideoOverlayUpdate, VO_ENABLE); \ } \ } \ while(0)
#else
static ULONG volatile *vpdwTemp;
// A macro to help me - I always get the volatile syntax wrong.
#define FORCED_IN_ORDER_WRITE(target,value) vpdwTemp = &(target); *vpdwTemp = (value)
#define UPDATE_OVERLAY(pThisDisplay, bWaitForVSync, bUpdateOverlaySize) \
do \ { \ if (pThisDisplay->pGLInfo->dwFlags & GMVF_VBLANK_ENABLED) \ { \ FORCED_IN_ORDER_WRITE ( pThisDisplay->pGLInfo->bVBLANKUpdateOverlay, TRUE ); \ } \ else \ { \ if ((READ_GLINT_CTRL_REG(VideoControl) & __GP_VIDEO_ENABLE) && (bWaitForVSync)) \ { \ /* only wait for vblank if the monitor is on */ \ LOAD_GLINT_CTRL_REG(IntFlags, INTR_VBLANK_SET); \ while (((READ_GLINT_CTRL_REG(IntFlags)) & INTR_VBLANK_SET) == 0); \ } \ \ if (bUpdateOverlaySize) \ { \ DWORD dwVideoOverlayMode = READ_GLINT_CTRL_REG(VideoOverlayMode); \ LOAD_GLINT_CTRL_REG(VideoOverlayMode, (dwVideoOverlayMode & 0xfffffffe)); \ LOAD_GLINT_CTRL_REG(VideoOverlayWidth, pThisDisplay->pGLInfo->VBLANKUpdateOverlayWidth); \ LOAD_GLINT_CTRL_REG(VideoOverlayHeight, pThisDisplay->pGLInfo->VBLANKUpdateOverlayHeight); \ LOAD_GLINT_CTRL_REG(VideoOverlayMode, dwVideoOverlayMode); \ } \ \ LOAD_GLINT_CTRL_REG(VideoOverlayUpdate, VO_ENABLE); \ } \ } \ while(0)
#endif
#endif // __DDOVER_H
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