Sweden-Number/dlls/x11drv/dga2.c

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/*
* DirectDraw DGA2 interface
*
* Copyright 2001 TransGaming Technologies, Inc.
*/
#include "config.h"
#ifdef HAVE_LIBXXF86DGA2
#include "ts_xlib.h"
#include "ts_xf86dga2.h"
#include "x11drv.h"
#include "x11ddraw.h"
#include "dga2.h"
#include "windef.h"
#include "wingdi.h"
#include "ddrawi.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(x11drv);
extern int usedga;
LPDDHALMODEINFO xf86dga2_modes;
unsigned xf86dga2_mode_count;
static XDGAMode* modes;
static int dga_event, dga_error;
static void convert_mode(XDGAMode *mode, LPDDHALMODEINFO info)
{
info->dwWidth = mode->viewportWidth;
info->dwHeight = mode->viewportHeight;
info->wRefreshRate = mode->verticalRefresh;
info->lPitch = mode->bytesPerScanline;
info->dwBPP = (mode->depth < 24) ? mode->depth : mode->bitsPerPixel;
info->wFlags = (mode->depth == 8) ? DDMODEINFO_PALETTIZED : 0;
info->dwRBitMask = mode->redMask;
info->dwGBitMask = mode->greenMask;
info->dwBBitMask = mode->blueMask;
info->dwAlphaBitMask = 0;
TRACE(" width=%ld, height=%ld, bpp=%ld, refresh=%d\n", \
info->dwWidth, info->dwHeight, info->dwBPP, info->wRefreshRate); \
}
void X11DRV_XF86DGA2_Init(void)
{
int nmodes, major, minor, i;
if (xf86dga2_modes) return; /* already initialized? */
/* if in desktop mode, don't use DGA */
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if (root_window != DefaultRootWindow(gdi_display)) return;
if (!usedga) return;
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if (!TSXDGAQueryExtension(gdi_display, &dga_event, &dga_error)) return;
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if (!TSXDGAQueryVersion(gdi_display, &major, &minor)) return;
if (major < 2) return; /* only bother with DGA 2+ */
/* test that it works */
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if (!TSXDGAOpenFramebuffer(gdi_display, DefaultScreen(gdi_display))) {
TRACE("disabling XF86DGA2 (insufficient permissions?)\n");
return;
}
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TSXDGACloseFramebuffer(gdi_display, DefaultScreen(gdi_display));
/* retrieve modes */
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modes = TSXDGAQueryModes(gdi_display, DefaultScreen(gdi_display), &nmodes);
if (!modes) return;
TRACE("DGA modes: count=%d\n", nmodes);
xf86dga2_mode_count = nmodes+1;
xf86dga2_modes = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DDHALMODEINFO) * (nmodes+1));
/* make dummy mode for exiting DGA */
memset(&xf86dga2_modes[0], 0, sizeof(xf86dga2_modes[0]));
/* convert modes to DDHALMODEINFO format */
for (i=0; i<nmodes; i++)
convert_mode(&modes[i], &xf86dga2_modes[i+1]);
TRACE("Enabling DGA\n");
}
void X11DRV_XF86DGA2_Cleanup(void)
{
if (modes) TSXFree(modes);
}
static XDGADevice *dga_dev;
static VIDMEM dga_mem = {
VIDMEM_ISRECTANGULAR | VIDMEM_ISHEAP
};
static DWORD PASCAL X11DRV_XF86DGA2_SetMode(LPDDHAL_SETMODEDATA data)
{
LPDDRAWI_DIRECTDRAW_LCL ddlocal = data->lpDD->lpExclusiveOwner;
DWORD vram;
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Display *display = thread_display();
data->ddRVal = DD_OK;
if (data->dwModeIndex) {
/* enter DGA */
XDGADevice *new_dev = NULL;
if (dga_dev || TSXDGAOpenFramebuffer(display, DefaultScreen(display)))
new_dev = TSXDGASetMode(display, DefaultScreen(display), modes[data->dwModeIndex-1].num);
if (new_dev) {
TSXDGASetViewport(display, DefaultScreen(display), 0, 0, XDGAFlipImmediate);
if (dga_dev) {
VirtualFree(dga_dev->data, 0, MEM_RELEASE);
TSXFree(dga_dev);
} else {
TSXDGASelectInput(display, DefaultScreen(display),
KeyPressMask|KeyReleaseMask|
ButtonPressMask|ButtonReleaseMask|
PointerMotionMask);
X11DRV_EVENT_SetDGAStatus(ddlocal->hWnd, dga_event);
X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_RELATIVE);
}
dga_dev = new_dev;
vram = dga_dev->mode.bytesPerScanline * dga_dev->mode.imageHeight;
VirtualAlloc(dga_dev->data, vram, MEM_RESERVE|MEM_SYSTEM, PAGE_READWRITE);
dga_mem.fpStart = (FLATPTR)dga_dev->data;
dga_mem.u1.dwWidth = dga_dev->mode.bytesPerScanline;
dga_mem.u2.dwHeight = dga_dev->mode.imageHeight;
X11DRV_DDHAL_SwitchMode(data->dwModeIndex, dga_dev->data, &dga_mem);
X11DRV_DD_IsDirect = TRUE;
}
else {
ERR("failed\n");
if (!dga_dev) TSXDGACloseFramebuffer(display, DefaultScreen(display));
data->ddRVal = DDERR_GENERIC;
}
}
else if (dga_dev) {
/* exit DGA */
X11DRV_DD_IsDirect = FALSE;
X11DRV_DDHAL_SwitchMode(0, NULL, NULL);
TSXDGASetMode(display, DefaultScreen(display), 0);
VirtualFree(dga_dev->data, 0, MEM_RELEASE);
X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_ABSOLUTE);
X11DRV_EVENT_SetDGAStatus(0, -1);
TSXFree(dga_dev);
TSXDGACloseFramebuffer(display, DefaultScreen(display));
dga_dev = NULL;
}
return DDHAL_DRIVER_HANDLED;
}
static LPDDHAL_CREATESURFACE X11DRV_XF86DGA2_old_create_surface;
static DWORD PASCAL X11DRV_XF86DGA2_CreateSurface(LPDDHAL_CREATESURFACEDATA data)
{
LPDDRAWI_DDRAWSURFACE_LCL lcl = *data->lplpSList;
LPDDRAWI_DDRAWSURFACE_GBL gbl = lcl->lpGbl;
LPDDSURFACEDESC2 desc = (LPDDSURFACEDESC2)data->lpDDSurfaceDesc;
HRESULT hr = DDHAL_DRIVER_NOTHANDLED;
if (X11DRV_XF86DGA2_old_create_surface)
hr = X11DRV_XF86DGA2_old_create_surface(data);
if (desc->ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_BACKBUFFER)) {
gbl->fpVidMem = 0; /* tell ddraw to allocate the memory */
hr = DDHAL_DRIVER_HANDLED;
}
return hr;
}
static DWORD PASCAL X11DRV_XF86DGA2_CreatePalette(LPDDHAL_CREATEPALETTEDATA data)
{
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Display *display = thread_display();
data->lpDDPalette->u1.dwReserved1 = TSXDGACreateColormap(display, DefaultScreen(display), dga_dev, AllocAll);
if (data->lpColorTable)
X11DRV_DDHAL_SetPalEntries(data->lpDDPalette->u1.dwReserved1, 0, 256,
data->lpColorTable);
data->ddRVal = DD_OK;
return DDHAL_DRIVER_HANDLED;
}
static DWORD PASCAL X11DRV_XF86DGA2_Flip(LPDDHAL_FLIPDATA data)
{
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Display *display = thread_display();
if (data->lpSurfCurr == X11DRV_DD_Primary) {
DWORD ofs = data->lpSurfCurr->lpGbl->fpVidMem - dga_mem.fpStart;
TSXDGASetViewport(display, DefaultScreen(display),
(ofs % dga_dev->mode.bytesPerScanline)*8/dga_dev->mode.bitsPerPixel,
ofs / dga_dev->mode.bytesPerScanline,
XDGAFlipImmediate);
}
data->ddRVal = DD_OK;
return DDHAL_DRIVER_HANDLED;
}
static DWORD PASCAL X11DRV_XF86DGA2_SetPalette(LPDDHAL_SETPALETTEDATA data)
{
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Display *display = thread_display();
if ((data->lpDDSurface == X11DRV_DD_Primary) &&
data->lpDDPalette && data->lpDDPalette->u1.dwReserved1) {
TSXDGAInstallColormap(display, DefaultScreen(display), data->lpDDPalette->u1.dwReserved1);
}
data->ddRVal = DD_OK;
return DDHAL_DRIVER_HANDLED;
}
int X11DRV_XF86DGA2_CreateDriver(LPDDHALINFO info)
{
if (!xf86dga2_mode_count) return 0; /* no DGA */
info->dwNumModes = xf86dga2_mode_count;
info->lpModeInfo = xf86dga2_modes;
info->dwModeIndex = 0;
X11DRV_XF86DGA2_old_create_surface = info->lpDDCallbacks->CreateSurface;
info->lpDDCallbacks->SetMode = X11DRV_XF86DGA2_SetMode;
info->lpDDCallbacks->CreateSurface = X11DRV_XF86DGA2_CreateSurface;
info->lpDDCallbacks->CreatePalette = X11DRV_XF86DGA2_CreatePalette;
info->lpDDSurfaceCallbacks->Flip = X11DRV_XF86DGA2_Flip;
info->lpDDSurfaceCallbacks->SetPalette = X11DRV_XF86DGA2_SetPalette;
return TRUE;
}
#endif /* HAVE_LIBXXF86DGA2 */