diff options
Diffstat (limited to 'hw/xgl')
| -rw-r--r-- | hw/xgl/xglglx.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/hw/xgl/xglglx.c b/hw/xgl/xglglx.c new file mode 100644 index 000000000..f22603e90 --- /dev/null +++ b/hw/xgl/xglglx.c @@ -0,0 +1,226 @@ +/* + * Copyright © 2005 Novell, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, 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 + * Novell, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior permission. + * Novell, Inc. makes no representations about the suitability of this + * software for any purpose. It is provided "as is" without express or + * implied warranty. + * + * NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN + * NO EVENT SHALL NOVELL, INC. 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. + * + * Author: David Reveman <davidr@novell.com> + */ + +#include "xgl.h" + +#ifdef GLXEXT + +#include "glxserver.h" +#include "glxscreens.h" +#include "glxext.h" + +typedef struct _xglGLXFunc { + void (*extensionInit) (void); + void (*setVisualConfigs) (int nconfigs, + __GLXvisualConfig *configs, + void **privates); + void (*wrapInitVisuals) (miInitVisualsProcPtr *initVisuals); + int (*initVisuals) (VisualPtr *visualp, + DepthPtr *depthp, + int *nvisualp, + int *ndepthp, + int *rootDepthp, + VisualID *defaultVisp, + unsigned long sizes, + int bitsPerRGB, + int preferredVis); + + void (*flushContextCache) (void); + void (*setRenderTables) (__glProcTable *table, + __glProcTableEXT *tableEXT); +} xglGLXFuncRec; + +static xglGLXFuncRec __glXFunc; + +static void *glXHandle = 0; +static void *glCoreHandle = 0; + +#define SYM(ptr, name) { (void **) &(ptr), (name) } + +__GLXextensionInfo __glDDXExtensionInfo = { + GL_CORE_MESA, + NULL, + NULL, + NULL +}; + +__GLXscreenInfo __glDDXScreenInfo = { + NULL, + NULL, + NULL, + NULL, + NULL, + 0, + 0, + "Vendor String", + "Version String", + "Extensions String", + NULL +}; + +void +GlxSetVisualConfigs (int nconfigs, + __GLXvisualConfig *configs, + void **privates) +{ + if (glXHandle && glCoreHandle) + (*__glXFunc.setVisualConfigs) (nconfigs, configs, privates); +} + +void +GlxExtensionInit (void) +{ + if (glXHandle && glCoreHandle) + (*__glXFunc.extensionInit) (); +} + +void +GlxWrapInitVisuals (miInitVisualsProcPtr *initVisuals) +{ + if (glXHandle && glCoreHandle) + (*__glXFunc.wrapInitVisuals) (initVisuals); +} + +int +GlxInitVisuals (VisualPtr *visualp, + DepthPtr *depthp, + int *nvisualp, + int *ndepthp, + int *rootDepthp, + VisualID *defaultVisp, + unsigned long sizes, + int bitsPerRGB, + int preferredVis) +{ + if (glXHandle && glCoreHandle) + return (*__glXFunc.initVisuals) (visualp, depthp, nvisualp, ndepthp, + rootDepthp, defaultVisp, sizes, + bitsPerRGB, preferredVis); + + return 0; +} + +void +GlxFlushContextCache (void) +{ + (*__glXFunc.flushContextCache) (); +} + +void +GlxSetRenderTables (__glProcTable *table, + __glProcTableEXT *tableEXT) +{ + (*__glXFunc.setRenderTables) (table, tableEXT); +} + +Bool +xglLoadGLXModules (void) +{ + +#ifdef XLOADABLE + if (!glXHandle) + { + xglSymbolRec sym[] = { + SYM (__glXFunc.extensionInit, "GlxExtensionInit"), + SYM (__glXFunc.setVisualConfigs, "GlxSetVisualConfigs"), + SYM (__glXFunc.wrapInitVisuals, "GlxWrapInitVisuals"), + SYM (__glXFunc.initVisuals, "GlxInitVisuals"), + SYM (__glXFunc.flushContextCache, "GlxFlushContextCache"), + SYM (__glXFunc.setRenderTables, "GlxSetRenderTables") + }; + + glXHandle = xglLoadModule ("glx"); + if (!glXHandle) + return FALSE; + + if (!xglLookupSymbols (glXHandle, sym, sizeof (sym) / sizeof (sym[0]))) + { + xglUnloadModule (glXHandle); + glXHandle = 0; + + return FALSE; + } + } + + if (!glCoreHandle) + { + xglSymbolRec sym[] = { + SYM (__glDDXScreenInfo.screenProbe, "__MESA_screenProbe"), + SYM (__glDDXScreenInfo.createContext, "__MESA_createContext"), + SYM (__glDDXScreenInfo.createBuffer, "__MESA_createBuffer"), + + SYM (__glDDXExtensionInfo.resetExtension, "__MESA_resetExtension"), + SYM (__glDDXExtensionInfo.initVisuals, "__MESA_initVisuals"), + SYM (__glDDXExtensionInfo.setVisualConfigs, + "__MESA_setVisualConfigs") + }; + + glCoreHandle = xglLoadModule ("glcore"); + if (!glCoreHandle) + return FALSE; + + if (!xglLookupSymbols (glCoreHandle, sym, sizeof (sym) / sizeof (sym[0]))) + { + xglUnloadModule (glCoreHandle); + glCoreHandle = 0; + + return FALSE; + } + + if (!xglLoadHashFuncs (glCoreHandle)) + { + xglUnloadModule (glCoreHandle); + glCoreHandle = 0; + } + } + + return TRUE; +#else + return FALSE; +#endif + +} + +void +xglUnloadGLXModules (void) +{ + +#ifdef XLOADABLE + if (glXHandle) + { + xglUnloadModule (glXHandle); + glXHandle = 0; + } + + if (glCoreHandle) + { + xglUnloadModule (glCoreHandle); + glCoreHandle = 0; + } +#endif + +} + +#endif |