From 6e8897ff9f90601ebf6eed500ad942c11b54d1f7 Mon Sep 17 00:00:00 2001 From: Kristian Høgsberg Date: Tue, 9 Feb 2010 09:58:36 -0500 Subject: Retire miniglx and move the actual glx code up to src/glx --- src/glx/x11/glxext.c | 1060 -------------------------------------------------- 1 file changed, 1060 deletions(-) delete mode 100644 src/glx/x11/glxext.c (limited to 'src/glx/x11/glxext.c') diff --git a/src/glx/x11/glxext.c b/src/glx/x11/glxext.c deleted file mode 100644 index c2de1a3fff8..00000000000 --- a/src/glx/x11/glxext.c +++ /dev/null @@ -1,1060 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. 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 - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * 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 including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * 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 NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. 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. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/** - * \file glxext.c - * GLX protocol interface boot-strap code. - * - * Direct rendering support added by Precision Insight, Inc. - * - * \author Kevin E. Martin - */ - -#include -#include "glxclient.h" -#include -#include -#include -#include "glxextensions.h" -#include "glcontextmodes.h" - -#ifdef USE_XCB -#include -#include -#include -#endif - - -#ifdef DEBUG -void __glXDumpDrawBuffer(__GLXcontext * ctx); -#endif - -/* -** You can set this cell to 1 to force the gl drawing stuff to be -** one command per packet -*/ -_X_HIDDEN int __glXDebug = 0; - -/* Extension required boiler plate */ - -static char *__glXExtensionName = GLX_EXTENSION_NAME; -XExtensionInfo *__glXExtensionInfo = NULL; - -static /* const */ char *error_list[] = { - "GLXBadContext", - "GLXBadContextState", - "GLXBadDrawable", - "GLXBadPixmap", - "GLXBadContextTag", - "GLXBadCurrentWindow", - "GLXBadRenderRequest", - "GLXBadLargeRequest", - "GLXUnsupportedPrivateRequest", - "GLXBadFBConfig", - "GLXBadPbuffer", - "GLXBadCurrentDrawable", - "GLXBadWindow", -}; - -static int -__glXCloseDisplay(Display * dpy, XExtCodes * codes) -{ - GLXContext gc; - - gc = __glXGetCurrentContext(); - if (dpy == gc->currentDpy) { - __glXSetCurrentContextNull(); - __glXFreeContext(gc); - } - - return XextRemoveDisplay(__glXExtensionInfo, dpy); -} - - -static -XEXT_GENERATE_ERROR_STRING(__glXErrorString, __glXExtensionName, - __GLX_NUMBER_ERRORS, error_list) -static Bool -__glXWireToEvent(Display *dpy, XEvent *event, xEvent *wire); -static Status -__glXEventToWire(Display *dpy, XEvent *event, xEvent *wire); - -static /* const */ XExtensionHooks __glXExtensionHooks = { - NULL, /* create_gc */ - NULL, /* copy_gc */ - NULL, /* flush_gc */ - NULL, /* free_gc */ - NULL, /* create_font */ - NULL, /* free_font */ - __glXCloseDisplay, /* close_display */ - __glXWireToEvent, /* wire_to_event */ - __glXEventToWire, /* event_to_wire */ - NULL, /* error */ - __glXErrorString, /* error_string */ -}; - -XEXT_GENERATE_FIND_DISPLAY(__glXFindDisplay, __glXExtensionInfo, - __glXExtensionName, &__glXExtensionHooks, - __GLX_NUMBER_EVENTS, NULL) - -/* - * GLX events are a bit funky. We don't stuff the X event code into - * our user exposed (via XNextEvent) structure. Instead we use the GLX - * private event code namespace (and hope it doesn't conflict). Clients - * have to know that bit 15 in the event type field means they're getting - * a GLX event, and then handle the various sub-event types there, rather - * than simply checking the event code and handling it directly. - */ - -static Bool -__glXWireToEvent(Display *dpy, XEvent *event, xEvent *wire) -{ - XExtDisplayInfo *info = __glXFindDisplay(dpy); - - XextCheckExtension(dpy, info, __glXExtensionName, False); - - switch ((wire->u.u.type & 0x7f) - info->codes->first_event) { - case GLX_PbufferClobber: - { - GLXPbufferClobberEvent *aevent = (GLXPbufferClobberEvent *)event; - xGLXPbufferClobberEvent *awire = (xGLXPbufferClobberEvent *)wire; - aevent->event_type = awire->type; - aevent->serial = awire->sequenceNumber; - aevent->event_type = awire->event_type; - aevent->draw_type = awire->draw_type; - aevent->drawable = awire->drawable; - aevent->buffer_mask = awire->buffer_mask; - aevent->aux_buffer = awire->aux_buffer; - aevent->x = awire->x; - aevent->y = awire->y; - aevent->width = awire->width; - aevent->height = awire->height; - aevent->count = awire->count; - return True; - } - /* No easy symbol to test for this, as GLX_BufferSwapComplete is - * defined in the local glx.h header, but the - * xGLXBufferSwapComplete typedef is only available in new versions - * of the external glxproto.h header, which doesn't have any - * testable versioning define. - * - * I'll use the related DRI2 define, in the hope that we won't - * receive these events unless we know how to ask for them: - */ -#ifdef X_DRI2SwapBuffers - case GLX_BufferSwapComplete: - { - GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event; - xGLXBufferSwapComplete *awire = (xGLXBufferSwapComplete *)wire; - aevent->event_type = awire->event_type; - aevent->drawable = awire->drawable; - aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo; - aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo; - aevent->sbc = ((CARD64)awire->sbc_hi << 32) | awire->sbc_lo; - return True; - } -#endif - default: - /* client doesn't support server event */ - break; - } - - return False; -} - -/* We don't actually support this. It doesn't make sense for clients to - * send each other GLX events. - */ -static Status -__glXEventToWire(Display *dpy, XEvent *event, xEvent *wire) -{ - XExtDisplayInfo *info = __glXFindDisplay(dpy); - - XextCheckExtension(dpy, info, __glXExtensionName, False); - - switch (event->type) { - case GLX_DAMAGED: - break; - case GLX_SAVED: - break; - case GLX_EXCHANGE_COMPLETE_INTEL: - break; - case GLX_BLIT_COMPLETE_INTEL: - break; - case GLX_FLIP_COMPLETE_INTEL: - break; - default: - /* client doesn't support server event */ - break; - } - - return Success; -} - -/************************************************************************/ -/* -** Free the per screen configs data as well as the array of -** __glXScreenConfigs. -*/ -static void -FreeScreenConfigs(__GLXdisplayPrivate * priv) -{ - __GLXscreenConfigs *psc; - GLint i, screens; - - /* Free screen configuration information */ - psc = priv->screenConfigs; - screens = ScreenCount(priv->dpy); - for (i = 0; i < screens; i++, psc++) { - if (psc->configs) { - _gl_context_modes_destroy(psc->configs); - if (psc->effectiveGLXexts) - Xfree(psc->effectiveGLXexts); - psc->configs = NULL; /* NOTE: just for paranoia */ - } - if (psc->visuals) { - _gl_context_modes_destroy(psc->visuals); - psc->visuals = NULL; /* NOTE: just for paranoia */ - } - Xfree((char *) psc->serverGLXexts); - -#ifdef GLX_DIRECT_RENDERING - if (psc->driver_configs) { - unsigned int j; - for (j = 0; psc->driver_configs[j]; j++) - free((__DRIconfig *) psc->driver_configs[j]); - free(psc->driver_configs); - psc->driver_configs = NULL; - } - if (psc->driScreen) { - psc->driScreen->destroyScreen(psc); - __glxHashDestroy(psc->drawHash); - XFree(psc->driScreen); - psc->driScreen = NULL; - } -#endif - } - XFree((char *) priv->screenConfigs); - priv->screenConfigs = NULL; -} - -/* -** Release the private memory referred to in a display private -** structure. The caller will free the extension structure. -*/ -static int -__glXFreeDisplayPrivate(XExtData * extension) -{ - __GLXdisplayPrivate *priv; - - priv = (__GLXdisplayPrivate *) extension->private_data; - FreeScreenConfigs(priv); - if (priv->serverGLXvendor) { - Xfree((char *) priv->serverGLXvendor); - priv->serverGLXvendor = 0x0; /* to protect against double free's */ - } - if (priv->serverGLXversion) { - Xfree((char *) priv->serverGLXversion); - priv->serverGLXversion = 0x0; /* to protect against double free's */ - } - -#ifdef GLX_DIRECT_RENDERING - /* Free the direct rendering per display data */ - if (priv->driswDisplay) - (*priv->driswDisplay->destroyDisplay) (priv->driswDisplay); - priv->driswDisplay = NULL; - - if (priv->driDisplay) - (*priv->driDisplay->destroyDisplay) (priv->driDisplay); - priv->driDisplay = NULL; - - if (priv->dri2Display) - (*priv->dri2Display->destroyDisplay) (priv->dri2Display); - priv->dri2Display = NULL; -#endif - - Xfree((char *) priv); - return 0; -} - -/************************************************************************/ - -/* -** Query the version of the GLX extension. This procedure works even if -** the client extension is not completely set up. -*/ -static Bool -QueryVersion(Display * dpy, int opcode, int *major, int *minor) -{ -#ifdef USE_XCB - xcb_connection_t *c = XGetXCBConnection(dpy); - xcb_glx_query_version_reply_t *reply = xcb_glx_query_version_reply(c, - xcb_glx_query_version - (c, - GLX_MAJOR_VERSION, - GLX_MINOR_VERSION), - NULL); - - if (reply->major_version != GLX_MAJOR_VERSION) { - free(reply); - return GL_FALSE; - } - *major = reply->major_version; - *minor = min(reply->minor_version, GLX_MINOR_VERSION); - free(reply); - return GL_TRUE; -#else - xGLXQueryVersionReq *req; - xGLXQueryVersionReply reply; - - /* Send the glXQueryVersion request */ - LockDisplay(dpy); - GetReq(GLXQueryVersion, req); - req->reqType = opcode; - req->glxCode = X_GLXQueryVersion; - req->majorVersion = GLX_MAJOR_VERSION; - req->minorVersion = GLX_MINOR_VERSION; - _XReply(dpy, (xReply *) & reply, 0, False); - UnlockDisplay(dpy); - SyncHandle(); - - if (reply.majorVersion != GLX_MAJOR_VERSION) { - /* - ** The server does not support the same major release as this - ** client. - */ - return GL_FALSE; - } - *major = reply.majorVersion; - *minor = min(reply.minorVersion, GLX_MINOR_VERSION); - return GL_TRUE; -#endif /* USE_XCB */ -} - - -_X_HIDDEN void -__glXInitializeVisualConfigFromTags(__GLcontextModes * config, int count, - const INT32 * bp, Bool tagged_only, - Bool fbconfig_style_tags) -{ - int i; - - if (!tagged_only) { - /* Copy in the first set of properties */ - config->visualID = *bp++; - - config->visualType = _gl_convert_from_x_visual_type(*bp++); - - config->rgbMode = *bp++; - - config->redBits = *bp++; - config->greenBits = *bp++; - config->blueBits = *bp++; - config->alphaBits = *bp++; - config->accumRedBits = *bp++; - config->accumGreenBits = *bp++; - config->accumBlueBits = *bp++; - config->accumAlphaBits = *bp++; - - config->doubleBufferMode = *bp++; - config->stereoMode = *bp++; - - config->rgbBits = *bp++; - config->depthBits = *bp++; - config->stencilBits = *bp++; - config->numAuxBuffers = *bp++; - config->level = *bp++; - - count -= __GLX_MIN_CONFIG_PROPS; - } - - /* - ** Additional properties may be in a list at the end - ** of the reply. They are in pairs of property type - ** and property value. - */ - -#define FETCH_OR_SET(tag) \ - config-> tag = ( fbconfig_style_tags ) ? *bp++ : 1 - - for (i = 0; i < count; i += 2) { - switch (*bp++) { - case GLX_RGBA: - FETCH_OR_SET(rgbMode); - break; - case GLX_BUFFER_SIZE: - config->rgbBits = *bp++; - break; - case GLX_LEVEL: - config->level = *bp++; - break; - case GLX_DOUBLEBUFFER: - FETCH_OR_SET(doubleBufferMode); - break; - case GLX_STEREO: - FETCH_OR_SET(stereoMode); - break; - case GLX_AUX_BUFFERS: - config->numAuxBuffers = *bp++; - break; - case GLX_RED_SIZE: - config->redBits = *bp++; - break; - case GLX_GREEN_SIZE: - config->greenBits = *bp++; - break; - case GLX_BLUE_SIZE: - config->blueBits = *bp++; - break; - case GLX_ALPHA_SIZE: - config->alphaBits = *bp++; - break; - case GLX_DEPTH_SIZE: - config->depthBits = *bp++; - break; - case GLX_STENCIL_SIZE: - config->stencilBits = *bp++; - break; - case GLX_ACCUM_RED_SIZE: - config->accumRedBits = *bp++; - break; - case GLX_ACCUM_GREEN_SIZE: - config->accumGreenBits = *bp++; - break; - case GLX_ACCUM_BLUE_SIZE: - config->accumBlueBits = *bp++; - break; - case GLX_ACCUM_ALPHA_SIZE: - config->accumAlphaBits = *bp++; - break; - case GLX_VISUAL_CAVEAT_EXT: - config->visualRating = *bp++; - break; - case GLX_X_VISUAL_TYPE: - config->visualType = *bp++; - break; - case GLX_TRANSPARENT_TYPE: - config->transparentPixel = *bp++; - break; - case GLX_TRANSPARENT_INDEX_VALUE: - config->transparentIndex = *bp++; - break; - case GLX_TRANSPARENT_RED_VALUE: - config->transparentRed = *bp++; - break; - case GLX_TRANSPARENT_GREEN_VALUE: - config->transparentGreen = *bp++; - break; - case GLX_TRANSPARENT_BLUE_VALUE: - config->transparentBlue = *bp++; - break; - case GLX_TRANSPARENT_ALPHA_VALUE: - config->transparentAlpha = *bp++; - break; - case GLX_VISUAL_ID: - config->visualID = *bp++; - break; - case GLX_DRAWABLE_TYPE: - config->drawableType = *bp++; - break; - case GLX_RENDER_TYPE: - config->renderType = *bp++; - break; - case GLX_X_RENDERABLE: - config->xRenderable = *bp++; - break; - case GLX_FBCONFIG_ID: - config->fbconfigID = *bp++; - break; - case GLX_MAX_PBUFFER_WIDTH: - config->maxPbufferWidth = *bp++; - break; - case GLX_MAX_PBUFFER_HEIGHT: - config->maxPbufferHeight = *bp++; - break; - case GLX_MAX_PBUFFER_PIXELS: - config->maxPbufferPixels = *bp++; - break; - case GLX_OPTIMAL_PBUFFER_WIDTH_SGIX: - config->optimalPbufferWidth = *bp++; - break; - case GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX: - config->optimalPbufferHeight = *bp++; - break; - case GLX_VISUAL_SELECT_GROUP_SGIX: - config->visualSelectGroup = *bp++; - break; - case GLX_SWAP_METHOD_OML: - config->swapMethod = *bp++; - break; - case GLX_SAMPLE_BUFFERS_SGIS: - config->sampleBuffers = *bp++; - break; - case GLX_SAMPLES_SGIS: - config->samples = *bp++; - break; - case GLX_BIND_TO_TEXTURE_RGB_EXT: - config->bindToTextureRgb = *bp++; - break; - case GLX_BIND_TO_TEXTURE_RGBA_EXT: - config->bindToTextureRgba = *bp++; - break; - case GLX_BIND_TO_MIPMAP_TEXTURE_EXT: - config->bindToMipmapTexture = *bp++; - break; - case GLX_BIND_TO_TEXTURE_TARGETS_EXT: - config->bindToTextureTargets = *bp++; - break; - case GLX_Y_INVERTED_EXT: - config->yInverted = *bp++; - break; - case None: - i = count; - break; - default: - break; - } - } - - config->renderType = - (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT; - - config->haveAccumBuffer = ((config->accumRedBits + - config->accumGreenBits + - config->accumBlueBits + - config->accumAlphaBits) > 0); - config->haveDepthBuffer = (config->depthBits > 0); - config->haveStencilBuffer = (config->stencilBits > 0); -} - -static __GLcontextModes * -createConfigsFromProperties(Display * dpy, int nvisuals, int nprops, - int screen, GLboolean tagged_only) -{ - INT32 buf[__GLX_TOTAL_CONFIG], *props; - unsigned prop_size; - __GLcontextModes *modes, *m; - int i; - - if (nprops == 0) - return NULL; - - /* FIXME: Is the __GLX_MIN_CONFIG_PROPS test correct for FBconfigs? */ - - /* Check number of properties */ - if (nprops < __GLX_MIN_CONFIG_PROPS || nprops > __GLX_MAX_CONFIG_PROPS) - return NULL; - - /* Allocate memory for our config structure */ - modes = _gl_context_modes_create(nvisuals, sizeof(__GLcontextModes)); - if (!modes) - return NULL; - - prop_size = nprops * __GLX_SIZE_INT32; - if (prop_size <= sizeof(buf)) - props = buf; - else - props = Xmalloc(prop_size); - - /* Read each config structure and convert it into our format */ - m = modes; - for (i = 0; i < nvisuals; i++) { - _XRead(dpy, (char *) props, prop_size); - /* Older X servers don't send this so we default it here. */ - m->drawableType = GLX_WINDOW_BIT; - __glXInitializeVisualConfigFromTags(m, nprops, props, - tagged_only, GL_TRUE); - m->screen = screen; - m = m->next; - } - - if (props != buf) - Xfree(props); - - return modes; -} - -static GLboolean -getVisualConfigs(Display * dpy, __GLXdisplayPrivate * priv, int screen) -{ - xGLXGetVisualConfigsReq *req; - __GLXscreenConfigs *psc; - xGLXGetVisualConfigsReply reply; - - LockDisplay(dpy); - - psc = priv->screenConfigs + screen; - psc->visuals = NULL; - GetReq(GLXGetVisualConfigs, req); - req->reqType = priv->majorOpcode; - req->glxCode = X_GLXGetVisualConfigs; - req->screen = screen; - - if (!_XReply(dpy, (xReply *) & reply, 0, False)) - goto out; - - psc->visuals = createConfigsFromProperties(dpy, - reply.numVisuals, - reply.numProps, - screen, GL_FALSE); - - out: - UnlockDisplay(dpy); - return psc->visuals != NULL; -} - -static GLboolean -getFBConfigs(Display * dpy, __GLXdisplayPrivate * priv, int screen) -{ - xGLXGetFBConfigsReq *fb_req; - xGLXGetFBConfigsSGIXReq *sgi_req; - xGLXVendorPrivateWithReplyReq *vpreq; - xGLXGetFBConfigsReply reply; - __GLXscreenConfigs *psc; - - psc = priv->screenConfigs + screen; - psc->serverGLXexts = - __glXQueryServerString(dpy, priv->majorOpcode, screen, GLX_EXTENSIONS); - - LockDisplay(dpy); - - psc->configs = NULL; - if (atof(priv->serverGLXversion) >= 1.3) { - GetReq(GLXGetFBConfigs, fb_req); - fb_req->reqType = priv->majorOpcode; - fb_req->glxCode = X_GLXGetFBConfigs; - fb_req->screen = screen; - } - else if (strstr(psc->serverGLXexts, "GLX_SGIX_fbconfig") != NULL) { - GetReqExtra(GLXVendorPrivateWithReply, - sz_xGLXGetFBConfigsSGIXReq + - sz_xGLXVendorPrivateWithReplyReq, vpreq); - sgi_req = (xGLXGetFBConfigsSGIXReq *) vpreq; - sgi_req->reqType = priv->majorOpcode; - sgi_req->glxCode = X_GLXVendorPrivateWithReply; - sgi_req->vendorCode = X_GLXvop_GetFBConfigsSGIX; - sgi_req->screen = screen; - } - else - goto out; - - if (!_XReply(dpy, (xReply *) & reply, 0, False)) - goto out; - - psc->configs = createConfigsFromProperties(dpy, - reply.numFBConfigs, - reply.numAttribs * 2, - screen, GL_TRUE); - - out: - UnlockDisplay(dpy); - return psc->configs != NULL; -} - -/* -** Allocate the memory for the per screen configs for each screen. -** If that works then fetch the per screen configs data. -*/ -static Bool -AllocAndFetchScreenConfigs(Display * dpy, __GLXdisplayPrivate * priv) -{ - __GLXscreenConfigs *psc; - GLint i, screens; - - /* - ** First allocate memory for the array of per screen configs. - */ - screens = ScreenCount(dpy); - psc = (__GLXscreenConfigs *) Xmalloc(screens * sizeof(__GLXscreenConfigs)); - if (!psc) { - return GL_FALSE; - } - memset(psc, 0, screens * sizeof(__GLXscreenConfigs)); - priv->screenConfigs = psc; - - priv->serverGLXversion = - __glXQueryServerString(dpy, priv->majorOpcode, 0, GLX_VERSION); - if (priv->serverGLXversion == NULL) { - FreeScreenConfigs(priv); - return GL_FALSE; - } - - for (i = 0; i < screens; i++, psc++) { - getVisualConfigs(dpy, priv, i); - getFBConfigs(dpy, priv, i); - -#ifdef GLX_DIRECT_RENDERING - psc->scr = i; - psc->dpy = dpy; - psc->drawHash = __glxHashCreate(); - if (psc->drawHash == NULL) - continue; - - if (priv->dri2Display) - psc->driScreen = (*priv->dri2Display->createScreen) (psc, i, priv); - - if (psc->driScreen == NULL && priv->driDisplay) - psc->driScreen = (*priv->driDisplay->createScreen) (psc, i, priv); - - if (psc->driScreen == NULL && priv->driswDisplay) - psc->driScreen = (*priv->driswDisplay->createScreen) (psc, i, priv); - - if (psc->driScreen == NULL) { - __glxHashDestroy(psc->drawHash); - psc->drawHash = NULL; - } -#endif - } - SyncHandle(); - return GL_TRUE; -} - -/* -** Initialize the client side extension code. -*/ -_X_HIDDEN __GLXdisplayPrivate * -__glXInitialize(Display * dpy) -{ - XExtDisplayInfo *info = __glXFindDisplay(dpy); - XExtData **privList, *private, *found; - __GLXdisplayPrivate *dpyPriv; - XEDataObject dataObj; - int major, minor; -#ifdef GLX_DIRECT_RENDERING - Bool glx_direct, glx_accel; -#endif - - /* The one and only long long lock */ - __glXLock(); - - if (!XextHasExtension(info)) { - /* No GLX extension supported by this server. Oh well. */ - __glXUnlock(); - XMissingExtension(dpy, __glXExtensionName); - return 0; - } - - /* See if a display private already exists. If so, return it */ - dataObj.display = dpy; - privList = XEHeadOfExtensionList(dataObj); - found = XFindOnExtensionList(privList, info->codes->extension); - if (found) { - __glXUnlock(); - return (__GLXdisplayPrivate *) found->private_data; - } - - /* See if the versions are compatible */ - if (!QueryVersion(dpy, info->codes->major_opcode, &major, &minor)) { - /* The client and server do not agree on versions. Punt. */ - __glXUnlock(); - return 0; - } - - /* - ** Allocate memory for all the pieces needed for this buffer. - */ - private = (XExtData *) Xmalloc(sizeof(XExtData)); - if (!private) { - __glXUnlock(); - return 0; - } - dpyPriv = (__GLXdisplayPrivate *) Xcalloc(1, sizeof(__GLXdisplayPrivate)); - if (!dpyPriv) { - __glXUnlock(); - Xfree((char *) private); - return 0; - } - - /* - ** Init the display private and then read in the screen config - ** structures from the server. - */ - dpyPriv->majorOpcode = info->codes->major_opcode; - dpyPriv->majorVersion = major; - dpyPriv->minorVersion = minor; - dpyPriv->dpy = dpy; - - dpyPriv->serverGLXvendor = 0x0; - dpyPriv->serverGLXversion = 0x0; - -#ifdef GLX_DIRECT_RENDERING - glx_direct = (getenv("LIBGL_ALWAYS_INDIRECT") == NULL); - glx_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL); - - /* - ** Initialize the direct rendering per display data and functions. - ** Note: This _must_ be done before calling any other DRI routines - ** (e.g., those called in AllocAndFetchScreenConfigs). - */ - if (glx_direct && glx_accel) { - dpyPriv->dri2Display = dri2CreateDisplay(dpy); - dpyPriv->driDisplay = driCreateDisplay(dpy); - } - if (glx_direct) - dpyPriv->driswDisplay = driswCreateDisplay(dpy); -#endif - - if (!AllocAndFetchScreenConfigs(dpy, dpyPriv)) { - __glXUnlock(); - Xfree((char *) dpyPriv); - Xfree((char *) private); - return 0; - } - - /* - ** Fill in the private structure. This is the actual structure that - ** hangs off of the Display structure. Our private structure is - ** referred to by this structure. Got that? - */ - private->number = info->codes->extension; - private->next = 0; - private->free_private = __glXFreeDisplayPrivate; - private->private_data = (char *) dpyPriv; - XAddToExtensionList(privList, private); - - if (dpyPriv->majorVersion == 1 && dpyPriv->minorVersion >= 1) { - __glXClientInfo(dpy, dpyPriv->majorOpcode); - } - __glXUnlock(); - - return dpyPriv; -} - -/* -** Setup for sending a GLX command on dpy. Make sure the extension is -** initialized. Try to avoid calling __glXInitialize as its kinda slow. -*/ -_X_HIDDEN CARD8 -__glXSetupForCommand(Display * dpy) -{ - GLXContext gc; - __GLXdisplayPrivate *priv; - - /* If this thread has a current context, flush its rendering commands */ - gc = __glXGetCurrentContext(); - if (gc->currentDpy) { - /* Flush rendering buffer of the current context, if any */ - (void) __glXFlushRenderBuffer(gc, gc->pc); - - if (gc->currentDpy == dpy) { - /* Use opcode from gc because its right */ - return gc->majorOpcode; - } - else { - /* - ** Have to get info about argument dpy because it might be to - ** a different server - */ - } - } - - /* Forced to lookup extension via the slow initialize route */ - priv = __glXInitialize(dpy); - if (!priv) { - return 0; - } - return priv->majorOpcode; -} - -/** - * Flush the drawing command transport buffer. - * - * \param ctx Context whose transport buffer is to be flushed. - * \param pc Pointer to first unused buffer location. - * - * \todo - * Modify this function to use \c ctx->pc instead of the explicit - * \c pc parameter. - */ -_X_HIDDEN GLubyte * -__glXFlushRenderBuffer(__GLXcontext * ctx, GLubyte * pc) -{ - Display *const dpy = ctx->currentDpy; -#ifdef USE_XCB - xcb_connection_t *c = XGetXCBConnection(dpy); -#else - xGLXRenderReq *req; -#endif /* USE_XCB */ - const GLint size = pc - ctx->buf; - - if ((dpy != NULL) && (size > 0)) { -#ifdef USE_XCB - xcb_glx_render(c, ctx->currentContextTag, size, - (const uint8_t *) ctx->buf); -#else - /* Send the entire buffer as an X request */ - LockDisplay(dpy); - GetReq(GLXRender, req); - req->reqType = ctx->majorOpcode; - req->glxCode = X_GLXRender; - req->contextTag = ctx->currentContextTag; - req->length += (size + 3) >> 2; - _XSend(dpy, (char *) ctx->buf, size); - UnlockDisplay(dpy); - SyncHandle(); -#endif - } - - /* Reset pointer and return it */ - ctx->pc = ctx->buf; - return ctx->pc; -} - - -/** - * Send a portion of a GLXRenderLarge command to the server. The advantage of - * this function over \c __glXSendLargeCommand is that callers can use the - * data buffer in the GLX context and may be able to avoid allocating an - * extra buffer. The disadvantage is the clients will have to do more - * GLX protocol work (i.e., calculating \c totalRequests, etc.). - * - * \sa __glXSendLargeCommand - * - * \param gc GLX context - * \param requestNumber Which part of the whole command is this? The first - * request is 1. - * \param totalRequests How many requests will there be? - * \param data Command data. - * \param dataLen Size, in bytes, of the command data. - */ -_X_HIDDEN void -__glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber, - GLint totalRequests, const GLvoid * data, GLint dataLen) -{ - Display *dpy = gc->currentDpy; -#ifdef USE_XCB - xcb_connection_t *c = XGetXCBConnection(dpy); - xcb_glx_render_large(c, gc->currentContextTag, requestNumber, - totalRequests, dataLen, data); -#else - xGLXRenderLargeReq *req; - - if (requestNumber == 1) { - LockDisplay(dpy); - } - - GetReq(GLXRenderLarge, req); - req->reqType = gc->majorOpcode; - req->glxCode = X_GLXRenderLarge; - req->contextTag = gc->currentContextTag; - req->length += (dataLen + 3) >> 2; - req->requestNumber = requestNumber; - req->requestTotal = totalRequests; - req->dataBytes = dataLen; - Data(dpy, data, dataLen); - - if (requestNumber == totalRequests) { - UnlockDisplay(dpy); - SyncHandle(); - } -#endif /* USE_XCB */ -} - - -/** - * Send a command that is too large for the GLXRender protocol request. - * - * Send a large command, one that is too large for some reason to - * send using the GLXRender protocol request. One reason to send - * a large command is to avoid copying the data. - * - * \param ctx GLX context - * \param header Header data. - * \param headerLen Size, in bytes, of the header data. It is assumed that - * the header data will always be small enough to fit in - * a single X protocol packet. - * \param data Command data. - * \param dataLen Size, in bytes, of the command data. - */ -_X_HIDDEN void -__glXSendLargeCommand(__GLXcontext * ctx, - const GLvoid * header, GLint headerLen, - const GLvoid * data, GLint dataLen) -{ - GLint maxSize; - GLint totalRequests, requestNumber; - - /* - ** Calculate the maximum amount of data can be stuffed into a single - ** packet. sz_xGLXRenderReq is added because bufSize is the maximum - ** packet size minus sz_xGLXRenderReq. - */ - maxSize = (ctx->bufSize + sz_xGLXRenderReq) - sz_xGLXRenderLargeReq; - totalRequests = 1 + (dataLen / maxSize); - if (dataLen % maxSize) - totalRequests++; - - /* - ** Send all of the command, except the large array, as one request. - */ - assert(headerLen <= maxSize); - __glXSendLargeChunk(ctx, 1, totalRequests, header, headerLen); - - /* - ** Send enough requests until the whole array is sent. - */ - for (requestNumber = 2; requestNumber <= (totalRequests - 1); - requestNumber++) { - __glXSendLargeChunk(ctx, requestNumber, totalRequests, data, maxSize); - data = (const GLvoid *) (((const GLubyte *) data) + maxSize); - dataLen -= maxSize; - assert(dataLen > 0); - } - - assert(dataLen <= maxSize); - __glXSendLargeChunk(ctx, requestNumber, totalRequests, data, dataLen); -} - -/************************************************************************/ - -#ifdef DEBUG -_X_HIDDEN void -__glXDumpDrawBuffer(__GLXcontext * ctx) -{ - GLubyte *p = ctx->buf; - GLubyte *end = ctx->pc; - GLushort opcode, length; - - while (p < end) { - /* Fetch opcode */ - opcode = *((GLushort *) p); - length = *((GLushort *) (p + 2)); - printf("%2x: %5d: ", opcode, length); - length -= 4; - p += 4; - while (length > 0) { - printf("%08x ", *((unsigned *) p)); - p += 4; - length -= 4; - } - printf("\n"); - } -} -#endif -- cgit v1.2.3