diff options
| -rw-r--r-- | GL/glx/swap_interval.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/GL/glx/swap_interval.c b/GL/glx/swap_interval.c new file mode 100644 index 000000000..bcc1c4793 --- /dev/null +++ b/GL/glx/swap_interval.c @@ -0,0 +1,105 @@ +/* + * (C) Copyright IBM Corporation 2006 + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#define NEED_REPLIES +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include "glxserver.h" +#include "glxutil.h" +#include "glxext.h" +#include "singlesize.h" +#include "unpack.h" +#include "indirect_size_get.h" +#include "indirect_dispatch.h" +#include "glapitable.h" +#include "glapi.h" +#include "glthread.h" +#include "dispatch.h" +#include "glapioffsets.h" + +#ifdef __linux__ +#include <byteswap.h> +#elif defined(__OpenBSD__) +#include <sys/endian.h> +#define bswap_16 __swap16 +#define bswap_32 __swap32 +#define bswap_64 __swap64 +#else +#include <sys/endian.h> +#define bswap_16 bswap16 +#define bswap_32 bswap32 +#define bswap_64 bswap64 +#endif + +static int DoSwapInterval(__GLXclientState *cl, GLbyte *pc, int do_swap); + +int DoSwapInterval(__GLXclientState *cl, GLbyte *pc, int do_swap) +{ + xGLXVendorPrivateReq * const req = (xGLXVendorPrivateReq *) pc; + ClientPtr client = cl->client; + const GLXContextTag tag = req->contextTag; + __GLXcontext *cx; + GLint interval; + + + cx = __glXLookupContextByTag(cl, tag); + + LogMessage(X_ERROR, "%s: cx = %p, GLX screen = %p\n", __func__, + cx, (cx == NULL) ? NULL : cx->pGlxScreen); + if ((cx == NULL) || (cx->pGlxScreen == NULL)) { + client->errorValue = tag; + return __glXError(GLXBadContext); + } + + if (cx->pGlxScreen->swapInterval == NULL) { + LogMessage(X_ERROR, "AIGLX: cx->pGlxScreen->swapInterval == NULL\n"); + client->errorValue = tag; + return __glXError(GLXUnsupportedPrivateRequest); + } + + if (cx->drawPriv == NULL) { + client->errorValue = tag; + return __glXError(GLXBadDrawable); + } + + pc += __GLX_VENDPRIV_HDR_SIZE; + interval = (do_swap) + ? bswap_32(*(int *)(pc + 0)) + : *(int *)(pc + 0); + + (void) (*cx->pGlxScreen->swapInterval)(cx->drawPriv, interval); + return Success; +} + +int __glXDisp_SwapIntervalSGI(__GLXclientState *cl, GLbyte *pc) +{ + return DoSwapInterval(cl, pc, 0); +} + +int __glXDispSwap_SwapIntervalSGI(__GLXclientState *cl, GLbyte *pc) +{ + return DoSwapInterval(cl, pc, 1); +} |