122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
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/*
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* DirectDraw XVidMode interface
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*
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* Copyright 2001 TransGaming Technologies, Inc.
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*/
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#include "config.h"
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/* FIXME: XVidMode also includes gamma functions,
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* we could perhaps use it to implement Get/SetGammaRamp */
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/* FIXME: ChangeDisplaySettings ought to be able to use this */
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#ifdef HAVE_LIBXXF86VM
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#include "ts_xlib.h"
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#include "ts_xf86vmode.h"
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#include "x11drv.h"
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#include "windef.h"
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#include "wingdi.h"
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#include "ddrawi.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(x11drv);
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LPDDHALMODEINFO xf86vm_modes;
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unsigned xf86vm_mode_count;
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XF86VidModeModeInfo** modes;
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#define CONVERT_MODE(dotclock) \
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info->dwWidth = mode->hdisplay; \
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info->dwHeight = mode->vdisplay; \
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info->wRefreshRate = dotclock * 1000 / (mode->htotal * mode->vtotal); \
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TRACE(" width=%ld, height=%ld, refresh=%d\n", \
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info->dwWidth, info->dwHeight, info->wRefreshRate); \
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/* XVidMode cannot change display depths... */ \
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/* let's not bother with filling out these then... */ \
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info->lPitch = 0; \
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info->dwBPP = 0; \
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info->wFlags = 0; \
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info->dwRBitMask = 0; \
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info->dwGBitMask = 0; \
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info->dwBBitMask = 0; \
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info->dwAlphaBitMask = 0;
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static void convert_modeinfo(XF86VidModeModeInfo *mode, LPDDHALMODEINFO info)
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{
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CONVERT_MODE(mode->dotclock)
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}
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static void convert_modeline(int dotclock, XF86VidModeModeLine *mode, LPDDHALMODEINFO info)
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{
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CONVERT_MODE(dotclock)
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}
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void X11DRV_XF86VM_Init(void)
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{
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int nmodes, major, minor, i;
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if (xf86vm_modes) return; /* already initialized? */
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/* if in desktop mode, don't use XVidMode */
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if (X11DRV_GetXRootWindow() != DefaultRootWindow(display)) return;
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/* see if XVidMode is available */
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if (!TSXF86VidModeQueryVersion(display, &major, &minor)) return;
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/* retrieve modes */
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if (!TSXF86VidModeGetAllModeLines(display, DefaultScreen(display), &nmodes,
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&modes))
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return;
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TRACE("XVidMode modes: count=%d\n", nmodes);
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xf86vm_mode_count = nmodes;
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xf86vm_modes = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DDHALMODEINFO) * nmodes);
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/* convert modes to DDHALMODEINFO format */
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for (i=0; i<nmodes; i++)
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convert_modeinfo(modes[i], &xf86vm_modes[i]);
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TRACE("Enabling XVidMode\n");
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}
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void X11DRV_XF86VM_Cleanup(void)
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{
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TSXFree(modes);
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}
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int X11DRV_XF86VM_GetCurrentMode(void)
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{
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XF86VidModeModeLine line;
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int dotclock, i;
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DDHALMODEINFO cmode;
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TRACE("Querying XVidMode current mode\n");
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TSXF86VidModeGetModeLine(display, DefaultScreen(display), &dotclock, &line);
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convert_modeline(dotclock, &line, &cmode);
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for (i=0; i<xf86vm_mode_count; i++)
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if (memcmp(&xf86vm_modes[i], &cmode, sizeof(cmode)) == 0) {
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TRACE("mode=%d\n", i);
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return i;
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}
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ERR("unknown mode, shouldn't happen\n");
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return 0; /* return first mode */
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}
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void X11DRV_XF86VM_SetCurrentMode(int mode)
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{
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TSXF86VidModeSwitchToMode(display, DefaultScreen(display), modes[mode]);
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TSXF86VidModeSetViewPort(display, DefaultScreen(display), 0, 0);
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TSXSync(display, False);
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}
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void X11DRV_XF86VM_SetExclusiveMode(int lock)
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{
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TSXF86VidModeLockModeSwitch(display, DefaultScreen(display), lock);
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}
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#endif /* HAVE_LIBXXF86VM */
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