diff options
Diffstat (limited to 'xorg-server/glx/glxdriswrast.c')
| -rw-r--r-- | xorg-server/glx/glxdriswrast.c | 1080 |
1 files changed, 541 insertions, 539 deletions
diff --git a/xorg-server/glx/glxdriswrast.c b/xorg-server/glx/glxdriswrast.c index 918383cf0..8ab3daa46 100644 --- a/xorg-server/glx/glxdriswrast.c +++ b/xorg-server/glx/glxdriswrast.c @@ -1,539 +1,541 @@ -/* - * Copyright © 2008 George Sapountzis <gsap7@yahoo.gr> - * Copyright © 2008 Red Hat, 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 the - * copyright holders not be used in advertising or publicity - * pertaining to distribution of the software without specific, - * written prior permission. The copyright holders make no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied - * warranty. - * - * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS - * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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. - */ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <stdint.h> -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <sys/time.h> -#include <dlfcn.h> - -#include <GL/gl.h> -#include <GL/internal/dri_interface.h> -#include <GL/glxtokens.h> - -#include "scrnintstr.h" -#include "pixmapstr.h" -#include "gcstruct.h" -#include "os.h" - -#include "glxserver.h" -#include "glxutil.h" -#include "glxdricommon.h" - -#include "g_disptab.h" -#include "glapitable.h" -#include "glapi.h" -#include "glthread.h" -#include "dispatch.h" -#include "extension_string.h" - -/* RTLD_LOCAL is not defined on Cygwin */ -#ifdef __CYGWIN__ -#ifndef RTLD_LOCAL -#define RTLD_LOCAL 0 -#endif -#endif - -typedef struct __GLXDRIscreen __GLXDRIscreen; -typedef struct __GLXDRIcontext __GLXDRIcontext; -typedef struct __GLXDRIdrawable __GLXDRIdrawable; - -struct __GLXDRIscreen { - __GLXscreen base; - __DRIscreen *driScreen; - void *driver; - - const __DRIcoreExtension *core; - const __DRIswrastExtension *swrast; - const __DRIcopySubBufferExtension *copySubBuffer; - const __DRItexBufferExtension *texBuffer; -}; - -struct __GLXDRIcontext { - __GLXcontext base; - __DRIcontext *driContext; -}; - -struct __GLXDRIdrawable { - __GLXdrawable base; - __DRIdrawable *driDrawable; - __GLXDRIscreen *screen; - - GCPtr gc; /* scratch GC for span drawing */ - GCPtr swapgc; /* GC for swapping the color buffers */ -}; - -static void -__glXDRIdrawableDestroy(__GLXdrawable *drawable) -{ - __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; - const __DRIcoreExtension *core = private->screen->core; - - (*core->destroyDrawable)(private->driDrawable); - - FreeScratchGC(private->gc); - FreeScratchGC(private->swapgc); - - __glXDrawableRelease(drawable); - - xfree(private); -} - -static GLboolean -__glXDRIdrawableSwapBuffers(ClientPtr client, __GLXdrawable *drawable) -{ - __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; - const __DRIcoreExtension *core = private->screen->core; - - (*core->swapBuffers)(private->driDrawable); - - return TRUE; -} - -static void -__glXDRIdrawableCopySubBuffer(__GLXdrawable *basePrivate, - int x, int y, int w, int h) -{ - __GLXDRIdrawable *private = (__GLXDRIdrawable *) basePrivate; - const __DRIcopySubBufferExtension *copySubBuffer = - private->screen->copySubBuffer; - - if (copySubBuffer) - (*copySubBuffer->copySubBuffer)(private->driDrawable, x, y, w, h); -} - -static void -__glXDRIcontextDestroy(__GLXcontext *baseContext) -{ - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; - - (*screen->core->destroyContext)(context->driContext); - __glXContextDestroy(&context->base); - xfree(context); -} - -static int -__glXDRIcontextMakeCurrent(__GLXcontext *baseContext) -{ - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv; - __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv; - __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; - - return (*screen->core->bindContext)(context->driContext, - draw->driDrawable, - read->driDrawable); -} - -static int -__glXDRIcontextLoseCurrent(__GLXcontext *baseContext) -{ - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; - - return (*screen->core->unbindContext)(context->driContext); -} - -static int -__glXDRIcontextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc, - unsigned long mask) -{ - __GLXDRIcontext *dst = (__GLXDRIcontext *) baseDst; - __GLXDRIcontext *src = (__GLXDRIcontext *) baseSrc; - __GLXDRIscreen *screen = (__GLXDRIscreen *) dst->base.pGlxScreen; - - return (*screen->core->copyContext)(dst->driContext, - src->driContext, mask); -} - -static int -__glXDRIcontextForceCurrent(__GLXcontext *baseContext) -{ - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv; - __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv; - __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; - - return (*screen->core->bindContext)(context->driContext, - draw->driDrawable, - read->driDrawable); -} - -#ifdef __DRI_TEX_BUFFER - -static int -__glXDRIbindTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *glxPixmap) -{ - __GLXDRIdrawable *drawable = (__GLXDRIdrawable *) glxPixmap; - const __DRItexBufferExtension *texBuffer = drawable->screen->texBuffer; - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - - if (texBuffer == NULL) - return Success; - - texBuffer->setTexBuffer(context->driContext, - glxPixmap->target, - drawable->driDrawable); - - return Success; -} - -static int -__glXDRIreleaseTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *pixmap) -{ - /* FIXME: Just unbind the texture? */ - return Success; -} - -#else - -static int -__glXDRIbindTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *glxPixmap) -{ - return Success; -} - -static int -__glXDRIreleaseTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *pixmap) -{ - return Success; -} - -#endif - -static __GLXtextureFromPixmap __glXDRItextureFromPixmap = { - __glXDRIbindTexImage, - __glXDRIreleaseTexImage -}; - -static void -__glXDRIscreenDestroy(__GLXscreen *baseScreen) -{ - __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen; - - (*screen->core->destroyScreen)(screen->driScreen); - - dlclose(screen->driver); - - __glXScreenDestroy(baseScreen); - - xfree(screen); -} - -static __GLXcontext * -__glXDRIscreenCreateContext(__GLXscreen *baseScreen, - __GLXconfig *glxConfig, - __GLXcontext *baseShareContext) -{ - __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen; - __GLXDRIcontext *context, *shareContext; - __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig; - const __DRIcoreExtension *core = screen->core; - __DRIcontext *driShare; - - shareContext = (__GLXDRIcontext *) baseShareContext; - if (shareContext) - driShare = shareContext->driContext; - else - driShare = NULL; - - context = xcalloc(1, sizeof *context); - if (context == NULL) - return NULL; - - context->base.destroy = __glXDRIcontextDestroy; - context->base.makeCurrent = __glXDRIcontextMakeCurrent; - context->base.loseCurrent = __glXDRIcontextLoseCurrent; - context->base.copy = __glXDRIcontextCopy; - context->base.forceCurrent = __glXDRIcontextForceCurrent; - context->base.textureFromPixmap = &__glXDRItextureFromPixmap; - - context->driContext = - (*core->createNewContext)(screen->driScreen, - config->driConfig, driShare, context); - - return &context->base; -} - -static void -glxChangeGC(GCPtr gc, BITS32 mask, CARD32 val) -{ - CARD32 v[1]; - v[0] = val; - dixChangeGC(NullClient, gc, mask, v, NULL); -} - -static __GLXdrawable * -__glXDRIscreenCreateDrawable(__GLXscreen *screen, - DrawablePtr pDraw, - int type, - XID drawId, - __GLXconfig *glxConfig) -{ - __GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen; - __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig; - __GLXDRIdrawable *private; - - ScreenPtr pScreen = driScreen->base.pScreen; - - private = xcalloc(1, sizeof *private); - if (private == NULL) - return NULL; - - private->screen = driScreen; - if (!__glXDrawableInit(&private->base, screen, - pDraw, type, drawId, glxConfig)) { - xfree(private); - return NULL; - } - - private->base.destroy = __glXDRIdrawableDestroy; - private->base.swapBuffers = __glXDRIdrawableSwapBuffers; - private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer; - - private->gc = CreateScratchGC(pScreen, pDraw->depth); - private->swapgc = CreateScratchGC(pScreen, pDraw->depth); - - glxChangeGC(private->gc, GCFunction, GXcopy); - glxChangeGC(private->swapgc, GCFunction, GXcopy); - glxChangeGC(private->swapgc, GCGraphicsExposures, FALSE); - - private->driDrawable = - (*driScreen->swrast->createNewDrawable)(driScreen->driScreen, - config->driConfig, - private); - - return &private->base; -} - -static void -swrastGetDrawableInfo(__DRIdrawable *draw, - int *x, int *y, int *w, int *h, - void *loaderPrivate) -{ - __GLXDRIdrawable *drawable = loaderPrivate; - DrawablePtr pDraw = drawable->base.pDraw; - - *x = pDraw->x; - *y = pDraw->x; - *w = pDraw->width; - *h = pDraw->height; -} - -static void -swrastPutImage(__DRIdrawable *draw, int op, - int x, int y, int w, int h, char *data, - void *loaderPrivate) -{ - __GLXDRIdrawable *drawable = loaderPrivate; - DrawablePtr pDraw = drawable->base.pDraw; - GCPtr gc; - - switch (op) { - case __DRI_SWRAST_IMAGE_OP_DRAW: - gc = drawable->gc; - break; - case __DRI_SWRAST_IMAGE_OP_SWAP: - gc = drawable->swapgc; - break; - default: - return; - } - - ValidateGC(pDraw, gc); - - gc->ops->PutImage(pDraw, gc, pDraw->depth, - x, y, w, h, 0, ZPixmap, data); -} - -static void -swrastGetImage(__DRIdrawable *draw, - int x, int y, int w, int h, char *data, - void *loaderPrivate) -{ - __GLXDRIdrawable *drawable = loaderPrivate; - DrawablePtr pDraw = drawable->base.pDraw; - ScreenPtr pScreen = pDraw->pScreen; - - pScreen->GetImage(pDraw, x, y, w, h, ZPixmap, ~0L, data); -} - -static const __DRIswrastLoaderExtension swrastLoaderExtension = { - { __DRI_SWRAST_LOADER, __DRI_SWRAST_LOADER_VERSION }, - swrastGetDrawableInfo, - swrastPutImage, - swrastGetImage -}; - -static const __DRIextension *loader_extensions[] = { - &systemTimeExtension.base, - &swrastLoaderExtension.base, - NULL -}; - -static void -initializeExtensions(__GLXDRIscreen *screen) -{ - const __DRIextension **extensions; - int i; - - extensions = screen->core->getExtensions(screen->driScreen); - - for (i = 0; extensions[i]; i++) { -#ifdef __DRI_COPY_SUB_BUFFER - if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) { - screen->copySubBuffer = - (const __DRIcopySubBufferExtension *) extensions[i]; - /* GLX_MESA_copy_sub_buffer is always enabled. */ - } -#endif - -#ifdef __DRI_TEX_BUFFER - if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) { - screen->texBuffer = - (const __DRItexBufferExtension *) extensions[i]; - /* GLX_EXT_texture_from_pixmap is always enabled. */ - } -#endif - /* Ignore unknown extensions */ - } -} - -static const char dri_driver_path[] = DRI_DRIVER_PATH; - -static __GLXscreen * -__glXDRIscreenProbe(ScreenPtr pScreen) -{ - const char *driverName = "swrast"; - __GLXDRIscreen *screen; - char filename[128]; - const __DRIextension **extensions; - const __DRIconfig **driConfigs; - int i; - - screen = xcalloc(1, sizeof *screen); - if (screen == NULL) - return NULL; - - screen->base.destroy = __glXDRIscreenDestroy; - screen->base.createContext = __glXDRIscreenCreateContext; - screen->base.createDrawable = __glXDRIscreenCreateDrawable; - screen->base.swapInterval = NULL; - screen->base.pScreen = pScreen; - - snprintf(filename, sizeof filename, - "%s/%s_dri.so", dri_driver_path, driverName); - - screen->driver = dlopen(filename, RTLD_LAZY | RTLD_LOCAL); - if (screen->driver == NULL) { - LogMessage(X_ERROR, "AIGLX error: dlopen of %s failed (%s)\n", - filename, dlerror()); - goto handle_error; - } - - extensions = dlsym(screen->driver, __DRI_DRIVER_EXTENSIONS); - if (extensions == NULL) { - LogMessage(X_ERROR, "AIGLX error: %s exports no extensions (%s)\n", - driverName, dlerror()); - goto handle_error; - } - - for (i = 0; extensions[i]; i++) { - if (strcmp(extensions[i]->name, __DRI_CORE) == 0 && - extensions[i]->version >= __DRI_CORE_VERSION) { - screen->core = (const __DRIcoreExtension *) extensions[i]; - } - if (strcmp(extensions[i]->name, __DRI_SWRAST) == 0 && - extensions[i]->version >= __DRI_SWRAST_VERSION) { - screen->swrast = (const __DRIswrastExtension *) extensions[i]; - } - } - - if (screen->core == NULL || screen->swrast == NULL) { - LogMessage(X_ERROR, "AIGLX error: %s exports no DRI extension\n", - driverName); - goto handle_error; - } - - screen->driScreen = - (*screen->swrast->createNewScreen)(pScreen->myNum, - loader_extensions, - &driConfigs, - screen); - - if (screen->driScreen == NULL) { - LogMessage(X_ERROR, - "AIGLX error: Calling driver entry point failed\n"); - goto handle_error; - } - - initializeExtensions(screen); - - screen->base.fbconfigs = glxConvertConfigs(screen->core, driConfigs, - GLX_WINDOW_BIT | - GLX_PIXMAP_BIT | - GLX_PBUFFER_BIT); - - __glXScreenInit(&screen->base, pScreen); - - screen->base.GLXmajor = 1; - screen->base.GLXminor = 4; - - LogMessage(X_INFO, - "AIGLX: Loaded and initialized %s\n", filename); - - return &screen->base; - - handle_error: - if (screen->driver) - dlclose(screen->driver); - - xfree(screen); - - LogMessage(X_ERROR, "GLX: could not load software renderer\n"); - - return NULL; -} - -_X_EXPORT __GLXprovider __glXDRISWRastProvider = { - __glXDRIscreenProbe, - "DRISWRAST", - NULL -}; +/*
+ * Copyright © 2008 George Sapountzis <gsap7@yahoo.gr>
+ * Copyright © 2008 Red Hat, 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 the
+ * copyright holders not be used in advertising or publicity
+ * pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <dlfcn.h>
+
+#include <GL/gl.h>
+#include <GL/internal/dri_interface.h>
+#include <GL/glxtokens.h>
+
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "gcstruct.h"
+#include "os.h"
+
+#include "glxserver.h"
+#include "glxutil.h"
+#include "glxdricommon.h"
+
+#include "g_disptab.h"
+#include "glapitable.h"
+#include "glapi.h"
+#include "glthread.h"
+#include "dispatch.h"
+#include "extension_string.h"
+
+/* RTLD_LOCAL is not defined on Cygwin */
+#ifdef __CYGWIN__
+#ifndef RTLD_LOCAL
+#define RTLD_LOCAL 0
+#endif
+#endif
+
+typedef struct __GLXDRIscreen __GLXDRIscreen;
+typedef struct __GLXDRIcontext __GLXDRIcontext;
+typedef struct __GLXDRIdrawable __GLXDRIdrawable;
+
+struct __GLXDRIscreen {
+ __GLXscreen base;
+ __DRIscreen *driScreen;
+ void *driver;
+
+ const __DRIcoreExtension *core;
+ const __DRIswrastExtension *swrast;
+ const __DRIcopySubBufferExtension *copySubBuffer;
+ const __DRItexBufferExtension *texBuffer;
+};
+
+struct __GLXDRIcontext {
+ __GLXcontext base;
+ __DRIcontext *driContext;
+};
+
+struct __GLXDRIdrawable {
+ __GLXdrawable base;
+ __DRIdrawable *driDrawable;
+ __GLXDRIscreen *screen;
+
+ GCPtr gc; /* scratch GC for span drawing */
+ GCPtr swapgc; /* GC for swapping the color buffers */
+};
+
+static void
+__glXDRIdrawableDestroy(__GLXdrawable *drawable)
+{
+ __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
+ const __DRIcoreExtension *core = private->screen->core;
+
+ (*core->destroyDrawable)(private->driDrawable);
+
+ FreeScratchGC(private->gc);
+ FreeScratchGC(private->swapgc);
+
+ __glXDrawableRelease(drawable);
+
+ xfree(private);
+}
+
+static GLboolean
+__glXDRIdrawableSwapBuffers(ClientPtr client, __GLXdrawable *drawable)
+{
+ __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
+ const __DRIcoreExtension *core = private->screen->core;
+
+ (*core->swapBuffers)(private->driDrawable);
+
+ return TRUE;
+}
+
+static void
+__glXDRIdrawableCopySubBuffer(__GLXdrawable *basePrivate,
+ int x, int y, int w, int h)
+{
+ __GLXDRIdrawable *private = (__GLXDRIdrawable *) basePrivate;
+ const __DRIcopySubBufferExtension *copySubBuffer =
+ private->screen->copySubBuffer;
+
+ if (copySubBuffer)
+ (*copySubBuffer->copySubBuffer)(private->driDrawable, x, y, w, h);
+}
+
+static void
+__glXDRIcontextDestroy(__GLXcontext *baseContext)
+{
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
+
+ (*screen->core->destroyContext)(context->driContext);
+ __glXContextDestroy(&context->base);
+ xfree(context);
+}
+
+static int
+__glXDRIcontextMakeCurrent(__GLXcontext *baseContext)
+{
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+ __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
+ __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
+
+ return (*screen->core->bindContext)(context->driContext,
+ draw->driDrawable,
+ read->driDrawable);
+}
+
+static int
+__glXDRIcontextLoseCurrent(__GLXcontext *baseContext)
+{
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
+
+ return (*screen->core->unbindContext)(context->driContext);
+}
+
+static int
+__glXDRIcontextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc,
+ unsigned long mask)
+{
+ __GLXDRIcontext *dst = (__GLXDRIcontext *) baseDst;
+ __GLXDRIcontext *src = (__GLXDRIcontext *) baseSrc;
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) dst->base.pGlxScreen;
+
+ return (*screen->core->copyContext)(dst->driContext,
+ src->driContext, mask);
+}
+
+static int
+__glXDRIcontextForceCurrent(__GLXcontext *baseContext)
+{
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+ __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
+ __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
+
+ return (*screen->core->bindContext)(context->driContext,
+ draw->driDrawable,
+ read->driDrawable);
+}
+
+#ifdef __DRI_TEX_BUFFER
+
+static int
+__glXDRIbindTexImage(__GLXcontext *baseContext,
+ int buffer,
+ __GLXdrawable *glxPixmap)
+{
+ __GLXDRIdrawable *drawable = (__GLXDRIdrawable *) glxPixmap;
+ const __DRItexBufferExtension *texBuffer = drawable->screen->texBuffer;
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+
+ if (texBuffer == NULL)
+ return Success;
+
+ texBuffer->setTexBuffer(context->driContext,
+ glxPixmap->target,
+ drawable->driDrawable);
+
+ return Success;
+}
+
+static int
+__glXDRIreleaseTexImage(__GLXcontext *baseContext,
+ int buffer,
+ __GLXdrawable *pixmap)
+{
+ /* FIXME: Just unbind the texture? */
+ return Success;
+}
+
+#else
+
+static int
+__glXDRIbindTexImage(__GLXcontext *baseContext,
+ int buffer,
+ __GLXdrawable *glxPixmap)
+{
+ return Success;
+}
+
+static int
+__glXDRIreleaseTexImage(__GLXcontext *baseContext,
+ int buffer,
+ __GLXdrawable *pixmap)
+{
+ return Success;
+}
+
+#endif
+
+static __GLXtextureFromPixmap __glXDRItextureFromPixmap = {
+ __glXDRIbindTexImage,
+ __glXDRIreleaseTexImage
+};
+
+static void
+__glXDRIscreenDestroy(__GLXscreen *baseScreen)
+{
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
+
+ (*screen->core->destroyScreen)(screen->driScreen);
+
+ dlclose(screen->driver);
+
+ __glXScreenDestroy(baseScreen);
+
+ xfree(screen);
+}
+
+static __GLXcontext *
+__glXDRIscreenCreateContext(__GLXscreen *baseScreen,
+ __GLXconfig *glxConfig,
+ __GLXcontext *baseShareContext)
+{
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
+ __GLXDRIcontext *context, *shareContext;
+ __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig;
+ const __DRIcoreExtension *core = screen->core;
+ __DRIcontext *driShare;
+
+ shareContext = (__GLXDRIcontext *) baseShareContext;
+ if (shareContext)
+ driShare = shareContext->driContext;
+ else
+ driShare = NULL;
+
+ context = xcalloc(1, sizeof *context);
+ if (context == NULL)
+ return NULL;
+
+ context->base.destroy = __glXDRIcontextDestroy;
+ context->base.makeCurrent = __glXDRIcontextMakeCurrent;
+ context->base.loseCurrent = __glXDRIcontextLoseCurrent;
+ context->base.copy = __glXDRIcontextCopy;
+ context->base.forceCurrent = __glXDRIcontextForceCurrent;
+ context->base.textureFromPixmap = &__glXDRItextureFromPixmap;
+
+ context->driContext =
+ (*core->createNewContext)(screen->driScreen,
+ config->driConfig, driShare, context);
+
+ return &context->base;
+}
+
+static void
+glxChangeGC(GCPtr gc, BITS32 mask, CARD32 val)
+{
+ CARD32 v[1];
+ v[0] = val;
+ dixChangeGC(NullClient, gc, mask, v, NULL);
+}
+
+static __GLXdrawable *
+__glXDRIscreenCreateDrawable(ClientPtr client,
+ __GLXscreen *screen,
+ DrawablePtr pDraw,
+ XID drawId,
+ int type,
+ XID glxDrawId,
+ __GLXconfig *glxConfig)
+{
+ __GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
+ __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig;
+ __GLXDRIdrawable *private;
+
+ ScreenPtr pScreen = driScreen->base.pScreen;
+
+ private = xcalloc(1, sizeof *private);
+ if (private == NULL)
+ return NULL;
+
+ private->screen = driScreen;
+ if (!__glXDrawableInit(&private->base, screen,
+ pDraw, type, glxDrawId, glxConfig)) {
+ xfree(private);
+ return NULL;
+ }
+
+ private->base.destroy = __glXDRIdrawableDestroy;
+ private->base.swapBuffers = __glXDRIdrawableSwapBuffers;
+ private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer;
+
+ private->gc = CreateScratchGC(pScreen, pDraw->depth);
+ private->swapgc = CreateScratchGC(pScreen, pDraw->depth);
+
+ glxChangeGC(private->gc, GCFunction, GXcopy);
+ glxChangeGC(private->swapgc, GCFunction, GXcopy);
+ glxChangeGC(private->swapgc, GCGraphicsExposures, FALSE);
+
+ private->driDrawable =
+ (*driScreen->swrast->createNewDrawable)(driScreen->driScreen,
+ config->driConfig,
+ private);
+
+ return &private->base;
+}
+
+static void
+swrastGetDrawableInfo(__DRIdrawable *draw,
+ int *x, int *y, int *w, int *h,
+ void *loaderPrivate)
+{
+ __GLXDRIdrawable *drawable = loaderPrivate;
+ DrawablePtr pDraw = drawable->base.pDraw;
+
+ *x = pDraw->x;
+ *y = pDraw->x;
+ *w = pDraw->width;
+ *h = pDraw->height;
+}
+
+static void
+swrastPutImage(__DRIdrawable *draw, int op,
+ int x, int y, int w, int h, char *data,
+ void *loaderPrivate)
+{
+ __GLXDRIdrawable *drawable = loaderPrivate;
+ DrawablePtr pDraw = drawable->base.pDraw;
+ GCPtr gc;
+
+ switch (op) {
+ case __DRI_SWRAST_IMAGE_OP_DRAW:
+ gc = drawable->gc;
+ break;
+ case __DRI_SWRAST_IMAGE_OP_SWAP:
+ gc = drawable->swapgc;
+ break;
+ default:
+ return;
+ }
+
+ ValidateGC(pDraw, gc);
+
+ gc->ops->PutImage(pDraw, gc, pDraw->depth,
+ x, y, w, h, 0, ZPixmap, data);
+}
+
+static void
+swrastGetImage(__DRIdrawable *draw,
+ int x, int y, int w, int h, char *data,
+ void *loaderPrivate)
+{
+ __GLXDRIdrawable *drawable = loaderPrivate;
+ DrawablePtr pDraw = drawable->base.pDraw;
+ ScreenPtr pScreen = pDraw->pScreen;
+
+ pScreen->GetImage(pDraw, x, y, w, h, ZPixmap, ~0L, data);
+}
+
+static const __DRIswrastLoaderExtension swrastLoaderExtension = {
+ { __DRI_SWRAST_LOADER, __DRI_SWRAST_LOADER_VERSION },
+ swrastGetDrawableInfo,
+ swrastPutImage,
+ swrastGetImage
+};
+
+static const __DRIextension *loader_extensions[] = {
+ &systemTimeExtension.base,
+ &swrastLoaderExtension.base,
+ NULL
+};
+
+static void
+initializeExtensions(__GLXDRIscreen *screen)
+{
+ const __DRIextension **extensions;
+ int i;
+
+ extensions = screen->core->getExtensions(screen->driScreen);
+
+ for (i = 0; extensions[i]; i++) {
+#ifdef __DRI_COPY_SUB_BUFFER
+ if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) {
+ screen->copySubBuffer =
+ (const __DRIcopySubBufferExtension *) extensions[i];
+ /* GLX_MESA_copy_sub_buffer is always enabled. */
+ }
+#endif
+
+#ifdef __DRI_TEX_BUFFER
+ if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) {
+ screen->texBuffer =
+ (const __DRItexBufferExtension *) extensions[i];
+ /* GLX_EXT_texture_from_pixmap is always enabled. */
+ }
+#endif
+ /* Ignore unknown extensions */
+ }
+}
+
+static const char dri_driver_path[] = DRI_DRIVER_PATH;
+
+static __GLXscreen *
+__glXDRIscreenProbe(ScreenPtr pScreen)
+{
+ const char *driverName = "swrast";
+ __GLXDRIscreen *screen;
+ char filename[128];
+ const __DRIextension **extensions;
+ const __DRIconfig **driConfigs;
+ int i;
+
+ screen = xcalloc(1, sizeof *screen);
+ if (screen == NULL)
+ return NULL;
+
+ screen->base.destroy = __glXDRIscreenDestroy;
+ screen->base.createContext = __glXDRIscreenCreateContext;
+ screen->base.createDrawable = __glXDRIscreenCreateDrawable;
+ screen->base.swapInterval = NULL;
+ screen->base.pScreen = pScreen;
+
+ snprintf(filename, sizeof filename,
+ "%s/%s_dri.so", dri_driver_path, driverName);
+
+ screen->driver = dlopen(filename, RTLD_LAZY | RTLD_LOCAL);
+ if (screen->driver == NULL) {
+ LogMessage(X_ERROR, "AIGLX error: dlopen of %s failed (%s)\n",
+ filename, dlerror());
+ goto handle_error;
+ }
+
+ extensions = dlsym(screen->driver, __DRI_DRIVER_EXTENSIONS);
+ if (extensions == NULL) {
+ LogMessage(X_ERROR, "AIGLX error: %s exports no extensions (%s)\n",
+ driverName, dlerror());
+ goto handle_error;
+ }
+
+ for (i = 0; extensions[i]; i++) {
+ if (strcmp(extensions[i]->name, __DRI_CORE) == 0 &&
+ extensions[i]->version >= __DRI_CORE_VERSION) {
+ screen->core = (const __DRIcoreExtension *) extensions[i];
+ }
+ if (strcmp(extensions[i]->name, __DRI_SWRAST) == 0 &&
+ extensions[i]->version >= __DRI_SWRAST_VERSION) {
+ screen->swrast = (const __DRIswrastExtension *) extensions[i];
+ }
+ }
+
+ if (screen->core == NULL || screen->swrast == NULL) {
+ LogMessage(X_ERROR, "AIGLX error: %s exports no DRI extension\n",
+ driverName);
+ goto handle_error;
+ }
+
+ screen->driScreen =
+ (*screen->swrast->createNewScreen)(pScreen->myNum,
+ loader_extensions,
+ &driConfigs,
+ screen);
+
+ if (screen->driScreen == NULL) {
+ LogMessage(X_ERROR,
+ "AIGLX error: Calling driver entry point failed\n");
+ goto handle_error;
+ }
+
+ initializeExtensions(screen);
+
+ screen->base.fbconfigs = glxConvertConfigs(screen->core, driConfigs,
+ GLX_WINDOW_BIT |
+ GLX_PIXMAP_BIT |
+ GLX_PBUFFER_BIT);
+
+ __glXScreenInit(&screen->base, pScreen);
+
+ screen->base.GLXmajor = 1;
+ screen->base.GLXminor = 4;
+
+ LogMessage(X_INFO,
+ "AIGLX: Loaded and initialized %s\n", filename);
+
+ return &screen->base;
+
+ handle_error:
+ if (screen->driver)
+ dlclose(screen->driver);
+
+ xfree(screen);
+
+ LogMessage(X_ERROR, "GLX: could not load software renderer\n");
+
+ return NULL;
+}
+
+_X_EXPORT __GLXprovider __glXDRISWRastProvider = {
+ __glXDRIscreenProbe,
+ "DRISWRAST",
+ NULL
+};
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