diff options
Diffstat (limited to 'nx-X11/programs/Xserver/Xext/sampleEVI.c')
| -rw-r--r-- | nx-X11/programs/Xserver/Xext/sampleEVI.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/Xext/sampleEVI.c b/nx-X11/programs/Xserver/Xext/sampleEVI.c new file mode 100644 index 000000000..500a585c9 --- /dev/null +++ b/nx-X11/programs/Xserver/Xext/sampleEVI.c @@ -0,0 +1,125 @@ +/* $Xorg: sampleEVI.c,v 1.3 2000/08/17 19:47:58 cpqbld Exp $ */ +/************************************************************ +Copyright (c) 1997 by Silicon Graphics Computer Systems, Inc. +Permission to use, copy, modify, and distribute this +software and its documentation for any purpose and without +fee is hereby granted, provided that the above copyright +notice appear in all copies and that both that copyright +notice and this permission notice appear in supporting +documentation, and that the name of Silicon Graphics not be +used in advertising or publicity pertaining to distribution +of the software without specific prior written permission. +Silicon Graphics makes no representation about the suitability +of this software for any purpose. It is provided "as is" +without any express or implied warranty. +SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS +SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON +GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL +DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, +DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE +OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH +THE USE OR PERFORMANCE OF THIS SOFTWARE. +********************************************************/ +/* $XFree86$ */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <X11/X.h> +#include <X11/Xproto.h> +#include "dixstruct.h" +#include "extnsionst.h" +#include "dix.h" +#define _XEVI_SERVER_ +#include <X11/extensions/XEVIstr.h> +#include "EVIstruct.h" +#include "scrnintstr.h" + +#if HAVE_STDINT_H +#include <stdint.h> +#elif !defined(UINT32_MAX) +#define UINT32_MAX 0xffffffffU +#endif + +static int sampleGetVisualInfo( + VisualID32 *visual, + int n_visual, + xExtendedVisualInfo **evi_rn, + int *n_info_rn, + VisualID32 **conflict_rn, + int *n_conflict_rn) +{ + unsigned int max_sz_evi; + VisualID32 *temp_conflict; + xExtendedVisualInfo *evi; + unsigned int max_visuals = 0, max_sz_conflict, sz_conflict = 0; + register int visualI, scrI, sz_evi = 0, conflictI, n_conflict; + + if (n_visual > UINT32_MAX/(sz_xExtendedVisualInfo * screenInfo.numScreens)) + return BadAlloc; + max_sz_evi = n_visual * sz_xExtendedVisualInfo * screenInfo.numScreens; + + for (scrI = 0; scrI < screenInfo.numScreens; scrI++) { + if (screenInfo.screens[scrI]->numVisuals > max_visuals) + max_visuals = screenInfo.screens[scrI]->numVisuals; + } + + if (n_visual > UINT32_MAX/(sz_VisualID32 * screenInfo.numScreens + * max_visuals)) + return BadAlloc; + max_sz_conflict = n_visual * sz_VisualID32 * screenInfo.numScreens * max_visuals; + + *evi_rn = evi = (xExtendedVisualInfo *)xalloc(max_sz_evi); + if (!*evi_rn) + return BadAlloc; + + temp_conflict = (VisualID32 *)xalloc(max_sz_conflict); + if (!temp_conflict) { + xfree(*evi_rn); + return BadAlloc; + } + + for (scrI = 0; scrI < screenInfo.numScreens; scrI++) { + for (visualI = 0; visualI < n_visual; visualI++) { + evi[sz_evi].core_visual_id = visual[visualI]; + evi[sz_evi].screen = scrI; + evi[sz_evi].level = 0; + evi[sz_evi].transparency_type = XEVI_TRANSPARENCY_NONE; + evi[sz_evi].transparency_value = 0; + evi[sz_evi].min_hw_colormaps = 1; + evi[sz_evi].max_hw_colormaps = 1; + evi[sz_evi].num_colormap_conflicts = n_conflict = 0; + for (conflictI = 0; conflictI < n_conflict; conflictI++) + temp_conflict[sz_conflict++] = visual[visualI]; + sz_evi++; + } + } + *conflict_rn = temp_conflict; + *n_conflict_rn = sz_conflict; + *n_info_rn = sz_evi; + return Success; +} + +static void sampleFreeVisualInfo( + xExtendedVisualInfo *evi, + VisualID32 *conflict) +{ + if (evi) + xfree(evi); + if (conflict) + xfree(conflict); +} + +EviPrivPtr eviDDXInit(void) +{ + static EviPrivRec eviPriv; + eviPriv.getVisualInfo = sampleGetVisualInfo; + eviPriv.freeVisualInfo = sampleFreeVisualInfo; + return &eviPriv; +} + +void eviDDXReset(void) +{ +} |