Bool
winScreenInit (int index,
ScreenPtr pScreen,
int argc, char **argv)
{
winScreenInfoPtr pScreenInfo = &g_ScreenInfo[index];
winPrivScreenPtr pScreenPriv;
HDC hdc;
#if CYGDEBUG || YES
winDebug ("winScreenInit - dwWidth: %ld dwHeight: %ld\n",
pScreenInfo->dwWidth, pScreenInfo->dwHeight);
#endif
/* Allocate privates for this screen */
if (!winAllocatePrivates (pScreen))
{
ErrorF ("winScreenInit - Couldn't allocate screen privates\n");
return FALSE;
}
/* Get a pointer to the privates structure that was allocated */
pScreenPriv = winGetScreenPriv (pScreen);
/* Save a pointer to this screen in the screen info structure */
pScreenInfo->pScreen = pScreen;
/* Save a pointer to the screen info in the screen privates structure */
/* This allows us to get back to the screen info from a screen pointer */
pScreenPriv->pScreenInfo = pScreenInfo;
/*
* Determine which engine to use.
*
* NOTE: This is done once per screen because each screen possibly has
* a preferred engine specified on the command line.
*/
if (!winSetEngine (pScreen))
{
ErrorF ("winScreenInit - winSetEngine () failed\n");
return FALSE;
}
/* Adjust the video mode for our engine type */
if (!(*pScreenPriv->pwinAdjustVideoMode) (pScreen))
{
ErrorF ("winScreenInit - winAdjustVideoMode () failed\n");
return FALSE;
}
/* Check for supported display depth */
if (!(WIN_SUPPORTED_BPPS & (1 << (pScreenInfo->dwBPP - 1))))
{
ErrorF ("winScreenInit - Unsupported display depth: %d\n" \
"Change your Windows display depth to 15, 16, 24, or 32 bits "
"per pixel.\n",
(int) pScreenInfo->dwBPP);
ErrorF ("winScreenInit - Supported depths: %08x\n",
WIN_SUPPORTED_BPPS);
#if WIN_CHECK_DEPTH
return FALSE;
#endif
}
/*
* Check that all monitors have the same display depth if we are using
* multiple monitors
*/
if (pScreenInfo->fMultipleMonitors
&& !GetSystemMetrics (SM_SAMEDISPLAYFORMAT))
{
ErrorF ("winScreenInit - Monitors do not all have same pixel format / "
"display depth.\n"
"Using primary display only.\n");
pScreenInfo->fMultipleMonitors = FALSE;
}
/* Create display window */
if (!(*pScreenPriv->pwinCreateBoundingWindow) (pScreen))
{
ErrorF ("winScreenInit - pwinCreateBoundingWindow () "
"failed\n");
return FALSE;
}
/* Get a device context */
hdc = GetDC (pScreenPriv->hwndScreen);
/* Store the initial height, width, and depth of the display */
/* Are we using multiple monitors? */
if (pScreenInfo->fMultipleMonitors)
{
pScreenPriv->dwLastWindowsWidth = GetSystemMetrics (SM_CXVIRTUALSCREEN);
pScreenPriv->dwLastWindowsHeight = GetSystemMetrics (SM_CYVIRTUALSCREEN);
/*
* In this case, some of the defaults set in
* winInitializeScreenDefaults() are not correct ...
*/
if (!pScreenInfo->fUserGaveHeightAndWidth)
{
pScreenInfo->dwWidth = GetSystemMetrics (SM_CXVIRTUALSCREEN);
pScreenInfo->dwHeight = GetSystemMetrics (SM_CYVIRTUALSCREEN);
pScreenInfo->dwWidth_mm = (pScreenInfo->dwWidth /
WIN_DEFAULT_DPI) * 25.4;
pScreenInfo->dwHeight_mm = (pScreenInfo->dwHeight /
WIN_DEFAULT_DPI) * 25.4;
}
}
else
{
pScreenPriv->dwLastWindowsWidth = GetSystemMetrics (SM_CXSCREEN);
pScreenPriv->dwLastWindowsHeight = GetSystemMetrics (SM_CYSCREEN);
}
/* Save the original bits per pixel */
pScreenPriv->dwLastWindowsBitsPixel = GetDeviceCaps (hdc, BITSPIXEL);
/* Release the device context */
ReleaseDC (pScreenPriv->hwndScreen, hdc);
/* Clear the visuals list */
miClearVisualTypes ();
/* Set the padded screen width */
pScreenInfo->dwPaddedWidth = PixmapBytePad (pScreenInfo->dwWidth,
pScreenInfo->dwBPP);
/* Call the engine dependent screen initialization procedure */
if (!((*pScreenPriv->pwinFinishScreenInit) (index, pScreen, argc, argv)))
{
ErrorF ("winScreenInit - winFinishScreenInit () failed\n");
return FALSE;
}
if (!g_fSoftwareCursor)
winInitCursor(pScreen);
else
winErrorFVerb(2, "winScreenInit - Using software cursor\n");
/*
Note the screen origin in a normalized coordinate space where (0,0) is at the top left
of the native virtual desktop area
*/
pScreen->x = pScreenInfo->dwInitialX - GetSystemMetrics(SM_XVIRTUALSCREEN);
pScreen->y = pScreenInfo->dwInitialY - GetSystemMetrics(SM_YVIRTUALSCREEN);
ErrorF("Screen %d added at virtual desktop coordinate (%d,%d).\n",
index, pScreen->x, pScreen->y);
#if CYGDEBUG || YES
winDebug ("winScreenInit - returning\n");
#endif
return TRUE;
}
Bool
winScreenInit(int index, ScreenPtr pScreen, int argc, char **argv)
{
winScreenInfoPtr pScreenInfo = &g_ScreenInfo[index];
winPrivScreenPtr pScreenPriv;
HDC hdc;
DWORD dwInitialBPP;
#if CYGDEBUG || YES
winDebug("winScreenInit - dwWidth: %ld dwHeight: %ld\n",
pScreenInfo->dwWidth, pScreenInfo->dwHeight);
#endif
/* Allocate privates for this screen */
if (!winAllocatePrivates(pScreen)) {
ErrorF("winScreenInit - Couldn't allocate screen privates\n");
return FALSE;
}
/* Get a pointer to the privates structure that was allocated */
pScreenPriv = winGetScreenPriv(pScreen);
/* Save a pointer to this screen in the screen info structure */
pScreenInfo->pScreen = pScreen;
/* Save a pointer to the screen info in the screen privates structure */
/* This allows us to get back to the screen info from a screen pointer */
pScreenPriv->pScreenInfo = pScreenInfo;
/*
* Determine which engine to use.
*
* NOTE: This is done once per screen because each screen possibly has
* a preferred engine specified on the command line.
*/
if (!winSetEngine(pScreen)) {
ErrorF("winScreenInit - winSetEngine () failed\n");
return FALSE;
}
/* Horribly misnamed function: Allow engine to adjust BPP for screen */
dwInitialBPP = pScreenInfo->dwBPP;
if (!(*pScreenPriv->pwinAdjustVideoMode) (pScreen)) {
ErrorF("winScreenInit - winAdjustVideoMode () failed\n");
return FALSE;
}
if (dwInitialBPP == WIN_DEFAULT_BPP) {
/* No -depth parameter was passed, let the user know the depth being used */
ErrorF
("winScreenInit - Using Windows display depth of %d bits per pixel\n",
(int) pScreenInfo->dwBPP);
}
else if (dwInitialBPP != pScreenInfo->dwBPP) {
/* Warn user if engine forced a depth different to -depth parameter */
ErrorF
("winScreenInit - Command line depth of %d bpp overidden by engine, using %d bpp\n",
(int) dwInitialBPP, (int) pScreenInfo->dwBPP);
}
else {
ErrorF("winScreenInit - Using command line depth of %d bpp\n",
(int) pScreenInfo->dwBPP);
}
/* Check for supported display depth */
if (!(WIN_SUPPORTED_BPPS & (1 << (pScreenInfo->dwBPP - 1)))) {
ErrorF("winScreenInit - Unsupported display depth: %d\n"
"Change your Windows display depth to 15, 16, 24, or 32 bits "
"per pixel.\n", (int) pScreenInfo->dwBPP);
ErrorF("winScreenInit - Supported depths: %08x\n", WIN_SUPPORTED_BPPS);
#if WIN_CHECK_DEPTH
return FALSE;
#endif
}
/*
* Check that all monitors have the same display depth if we are using
* multiple monitors
*/
if (pScreenInfo->fMultipleMonitors
&& !GetSystemMetrics(SM_SAMEDISPLAYFORMAT)) {
ErrorF("winScreenInit - Monitors do not all have same pixel format / "
"display depth.\n");
if (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_GDI) {
ErrorF
("winScreenInit - Performance may suffer off primary display.\n");
}
else {
ErrorF("winScreenInit - Using primary display only.\n");
pScreenInfo->fMultipleMonitors = FALSE;
}
}
/* Create display window */
if (!(*pScreenPriv->pwinCreateBoundingWindow) (pScreen)) {
ErrorF("winScreenInit - pwinCreateBoundingWindow () " "failed\n");
return FALSE;
}
/* Get a device context */
hdc = GetDC(pScreenPriv->hwndScreen);
/* Are we using multiple monitors? */
if (pScreenInfo->fMultipleMonitors) {
/*
* In this case, some of the defaults set in
* winInitializeScreenDefaults() are not correct ...
*/
if (!pScreenInfo->fUserGaveHeightAndWidth) {
pScreenInfo->dwWidth = GetSystemMetrics(SM_CXVIRTUALSCREEN);
pScreenInfo->dwHeight = GetSystemMetrics(SM_CYVIRTUALSCREEN);
}
}
/* Release the device context */
ReleaseDC(pScreenPriv->hwndScreen, hdc);
/* Clear the visuals list */
miClearVisualTypes();
/* Call the engine dependent screen initialization procedure */
if (!((*pScreenPriv->pwinFinishScreenInit) (index, pScreen, argc, argv))) {
ErrorF("winScreenInit - winFinishScreenInit () failed\n");
/* call the engine dependent screen close procedure to clean up from a failure */
pScreenPriv->pwinCloseScreen(index, pScreen);
return FALSE;
}
if (!g_fSoftwareCursor)
winInitCursor(pScreen);
else
winErrorFVerb(2, "winScreenInit - Using software cursor\n");
/*
Note the screen origin in a normalized coordinate space where (0,0) is at the top left
of the native virtual desktop area
*/
pScreen->x = pScreenInfo->dwInitialX - GetSystemMetrics(SM_XVIRTUALSCREEN);
pScreen->y = pScreenInfo->dwInitialY - GetSystemMetrics(SM_YVIRTUALSCREEN);
ErrorF("Screen %d added at virtual desktop coordinate (%d,%d).\n",
index, pScreen->x, pScreen->y);
#if CYGDEBUG || YES
winDebug("winScreenInit - returning\n");
#endif
return TRUE;
}