diff options
Diffstat (limited to 'xorg-server/glx')
| -rw-r--r-- | xorg-server/glx/glthread.c | 2 | ||||
| -rw-r--r-- | xorg-server/glx/glxdri2.c | 1617 |
2 files changed, 813 insertions, 806 deletions
diff --git a/xorg-server/glx/glthread.c b/xorg-server/glx/glthread.c index 4caaea110..8b9f61885 100644 --- a/xorg-server/glx/glthread.c +++ b/xorg-server/glx/glthread.c @@ -129,7 +129,7 @@ _glthread_SetTSD(_glthread_TSD *tsd, void *ptr) _X_EXPORT unsigned long _glthread_GetID(void) { - abort(); /* XXX not implemented yet */ + OsAbort(); /* XXX not implemented yet */ return (unsigned long) 0; } diff --git a/xorg-server/glx/glxdri2.c b/xorg-server/glx/glxdri2.c index cf1d43452..edd29b0e1 100644 --- a/xorg-server/glx/glxdri2.c +++ b/xorg-server/glx/glxdri2.c @@ -1,805 +1,812 @@ -/*
- * Copyright © 2007 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 Red Hat,
- * Inc not be used in advertising or publicity pertaining to
- * distribution of the software without specific, written prior
- * permission. Red Hat, Inc makes no representations about the
- * suitability of this software for any purpose. It is provided "as
- * is" without express or implied warranty.
- *
- * RED HAT, INC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
- * NO EVENT SHALL RED HAT, 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.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <dlfcn.h>
-
-#include <drm.h>
-#include <GL/gl.h>
-#include <GL/internal/dri_interface.h>
-#include <GL/glxtokens.h>
-
-#include <windowstr.h>
-#include <os.h>
-
-#define _XF86DRI_SERVER_
-#include <xf86drm.h>
-#include <xf86.h>
-#include <dri2.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"
-
-typedef struct __GLXDRIscreen __GLXDRIscreen;
-typedef struct __GLXDRIcontext __GLXDRIcontext;
-typedef struct __GLXDRIdrawable __GLXDRIdrawable;
-
-struct __GLXDRIscreen {
- __GLXscreen base;
- __DRIscreen *driScreen;
- void *driver;
- int fd;
-
- xf86EnterVTProc *enterVT;
- xf86LeaveVTProc *leaveVT;
-
- const __DRIcoreExtension *core;
- const __DRIdri2Extension *dri2;
- const __DRI2flushExtension *flush;
- const __DRIcopySubBufferExtension *copySubBuffer;
- const __DRIswapControlExtension *swapControl;
- const __DRItexBufferExtension *texBuffer;
-
- unsigned char glx_enable_bits[__GLX_EXT_BYTES];
-};
-
-struct __GLXDRIcontext {
- __GLXcontext base;
- __DRIcontext *driContext;
-};
-
-#define MAX_DRAWABLE_BUFFERS 5
-
-struct __GLXDRIdrawable {
- __GLXdrawable base;
- __DRIdrawable *driDrawable;
- __GLXDRIscreen *screen;
-
- /* Dimensions as last reported by DRI2GetBuffers. */
- int width;
- int height;
- __DRIbuffer buffers[MAX_DRAWABLE_BUFFERS];
- int count;
-};
-
-static void
-__glXDRIdrawableDestroy(__GLXdrawable *drawable)
-{
- __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
- const __DRIcoreExtension *core = private->screen->core;
-
- (*core->destroyDrawable)(private->driDrawable);
-
- /* If the X window was destroyed, the dri DestroyWindow hook will
- * aready have taken care of this, so only call if pDraw isn't NULL. */
- if (drawable->pDraw != NULL)
- DRI2DestroyDrawable(drawable->pDraw);
-
- __glXDrawableRelease(drawable);
-
- xfree(private);
-}
-
-static void
-__glXDRIdrawableCopySubBuffer(__GLXdrawable *drawable,
- int x, int y, int w, int h)
-{
- __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
- BoxRec box;
- RegionRec region;
-
- box.x1 = x;
- box.y1 = private->height - y - h;
- box.x2 = x + w;
- box.y2 = private->height - y;
- REGION_INIT(drawable->pDraw->pScreen, ®ion, &box, 0);
-
- DRI2CopyRegion(drawable->pDraw, ®ion,
- DRI2BufferFrontLeft, DRI2BufferBackLeft);
-}
-
-static void
-__glXDRIdrawableWaitX(__GLXdrawable *drawable)
-{
- __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
- BoxRec box;
- RegionRec region;
-
- box.x1 = 0;
- box.y1 = 0;
- box.x2 = private->width;
- box.y2 = private->height;
- REGION_INIT(drawable->pDraw->pScreen, ®ion, &box, 0);
-
- DRI2CopyRegion(drawable->pDraw, ®ion,
- DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft);
-}
-
-static void
-__glXDRIdrawableWaitGL(__GLXdrawable *drawable)
-{
- __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
- BoxRec box;
- RegionRec region;
-
- box.x1 = 0;
- box.y1 = 0;
- box.x2 = private->width;
- box.y2 = private->height;
- REGION_INIT(drawable->pDraw->pScreen, ®ion, &box, 0);
-
- DRI2CopyRegion(drawable->pDraw, ®ion,
- DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft);
-}
-
-static void
-__glXdriSwapEvent(ClientPtr client, void *data, int type, CARD64 ust,
- CARD64 msc, CARD64 sbc)
-{
- __GLXdrawable *drawable = data;
- xGLXBufferSwapComplete wire;
-
- if (!(drawable->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK))
- return;
-
- wire.type = __glXEventBase + GLX_BufferSwapComplete;
- switch (type) {
- case DRI2_EXCHANGE_COMPLETE:
- wire.event_type = GLX_EXCHANGE_COMPLETE_INTEL;
- break;
- case DRI2_BLIT_COMPLETE:
- wire.event_type = GLX_BLIT_COMPLETE_INTEL;
- break;
- case DRI2_FLIP_COMPLETE:
- wire.event_type = GLX_FLIP_COMPLETE_INTEL;
- break;
- default:
- /* unknown swap completion type */
- break;
- }
- wire.sequenceNumber = client->sequence;
- wire.drawable = drawable->drawId;
- wire.ust_hi = ust >> 32;
- wire.ust_lo = ust & 0xffffffff;
- wire.msc_hi = msc >> 32;
- wire.msc_lo = msc & 0xffffffff;
- wire.sbc_hi = sbc >> 32;
- wire.sbc_lo = sbc & 0xffffffff;
-
- WriteEventsToClient(client, 1, (xEvent *) &wire);
-}
-
-/*
- * Copy or flip back to front, honoring the swap interval if possible.
- *
- * If the kernel supports it, we request an event for the frame when the
- * swap should happen, then perform the copy when we receive it.
- */
-static GLboolean
-__glXDRIdrawableSwapBuffers(ClientPtr client, __GLXdrawable *drawable)
-{
- __GLXDRIdrawable *priv = (__GLXDRIdrawable *) drawable;
- __GLXDRIscreen *screen = priv->screen;
- CARD64 unused;
-
- if (screen->flush)
- (*screen->flush->flushInvalidate)(priv->driDrawable);
-
- if (DRI2SwapBuffers(client, drawable->pDraw, 0, 0, 0, &unused,
- __glXdriSwapEvent, drawable->pDraw) != Success)
- return FALSE;
-
- return TRUE;
-}
-
-static int
-__glXDRIdrawableSwapInterval(__GLXdrawable *drawable, int interval)
-{
- if (interval <= 0) /* || interval > BIGNUM? */
- return GLX_BAD_VALUE;
-
- DRI2SwapInterval(drawable->pDraw, interval);
-
- return 0;
-}
-
-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);
-}
-
-static Bool
-__glXDRIcontextWait(__GLXcontext *baseContext,
- __GLXclientState *cl, int *error)
-{
- if (DRI2WaitSwap(cl->client, baseContext->drawPriv->pDraw)) {
- *error = cl->client->noClientException;
- return TRUE;
- }
-
- return FALSE;
-}
-
-#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;
-
-#if __DRI_TEX_BUFFER_VERSION >= 2
- if (texBuffer->base.version >= 2 && texBuffer->setTexBuffer2 != NULL) {
- (*texBuffer->setTexBuffer2)(context->driContext,
- glxPixmap->target,
- glxPixmap->format,
- drawable->driDrawable);
- } else
-#endif
- {
- 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;
- __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->base.wait = __glXDRIcontextWait;
-
- context->driContext =
- (*screen->dri2->createNewContext)(screen->driScreen,
- config->driConfig,
- driShare, context);
- if (context->driContext == NULL) {
- xfree(context);
- return NULL;
- }
-
- return &context->base;
-}
-
-static __GLXdrawable *
-__glXDRIscreenCreateDrawable(__GLXscreen *screen,
- DrawablePtr pDraw,
- int type,
- XID drawId,
- __GLXconfig *glxConfig)
-{
- __GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
- __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig;
- __GLXDRIdrawable *private;
-
- 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->base.waitGL = __glXDRIdrawableWaitGL;
- private->base.waitX = __glXDRIdrawableWaitX;
-
- if (DRI2CreateDrawable(pDraw)) {
- xfree(private);
- return NULL;
- }
-
- private->driDrawable =
- (*driScreen->dri2->createNewDrawable)(driScreen->driScreen,
- config->driConfig, private);
-
- return &private->base;
-}
-
-static __DRIbuffer *
-dri2GetBuffers(__DRIdrawable *driDrawable,
- int *width, int *height,
- unsigned int *attachments, int count,
- int *out_count, void *loaderPrivate)
-{
- __GLXDRIdrawable *private = loaderPrivate;
- DRI2BufferPtr *buffers;
- int i;
- int j;
-
- buffers = DRI2GetBuffers(private->base.pDraw,
- width, height, attachments, count, out_count);
- if (*out_count > MAX_DRAWABLE_BUFFERS) {
- *out_count = 0;
- return NULL;
- }
-
- private->width = *width;
- private->height = *height;
-
- /* This assumes the DRI2 buffer attachment tokens matches the
- * __DRIbuffer tokens. */
- j = 0;
- for (i = 0; i < *out_count; i++) {
- /* Do not send the real front buffer of a window to the client.
- */
- if ((private->base.pDraw->type == DRAWABLE_WINDOW)
- && (buffers[i]->attachment == DRI2BufferFrontLeft)) {
- continue;
- }
-
- private->buffers[j].attachment = buffers[i]->attachment;
- private->buffers[j].name = buffers[i]->name;
- private->buffers[j].pitch = buffers[i]->pitch;
- private->buffers[j].cpp = buffers[i]->cpp;
- private->buffers[j].flags = buffers[i]->flags;
- j++;
- }
-
- *out_count = j;
- return private->buffers;
-}
-
-static __DRIbuffer *
-dri2GetBuffersWithFormat(__DRIdrawable *driDrawable,
- int *width, int *height,
- unsigned int *attachments, int count,
- int *out_count, void *loaderPrivate)
-{
- __GLXDRIdrawable *private = loaderPrivate;
- DRI2BufferPtr *buffers;
- int i;
- int j = 0;
-
- buffers = DRI2GetBuffersWithFormat(private->base.pDraw,
- width, height, attachments, count,
- out_count);
- if (*out_count > MAX_DRAWABLE_BUFFERS) {
- *out_count = 0;
- return NULL;
- }
-
- private->width = *width;
- private->height = *height;
-
- /* This assumes the DRI2 buffer attachment tokens matches the
- * __DRIbuffer tokens. */
- for (i = 0; i < *out_count; i++) {
- /* Do not send the real front buffer of a window to the client.
- */
- if ((private->base.pDraw->type == DRAWABLE_WINDOW)
- && (buffers[i]->attachment == DRI2BufferFrontLeft)) {
- continue;
- }
-
- private->buffers[j].attachment = buffers[i]->attachment;
- private->buffers[j].name = buffers[i]->name;
- private->buffers[j].pitch = buffers[i]->pitch;
- private->buffers[j].cpp = buffers[i]->cpp;
- private->buffers[j].flags = buffers[i]->flags;
- j++;
- }
-
- *out_count = j;
- return private->buffers;
-}
-
-static void
-dri2FlushFrontBuffer(__DRIdrawable *driDrawable, void *loaderPrivate)
-{
- (void) driDrawable;
- __glXDRIdrawableWaitGL((__GLXdrawable *) loaderPrivate);
-}
-
-static const __DRIdri2LoaderExtension loaderExtension = {
- { __DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION },
- dri2GetBuffers,
- dri2FlushFrontBuffer,
- dri2GetBuffersWithFormat,
-};
-
-static const __DRIextension *loader_extensions[] = {
- &systemTimeExtension.base,
- &loaderExtension.base,
- NULL
-};
-
-static const char dri_driver_path[] = DRI_DRIVER_PATH;
-
-static Bool
-glxDRIEnterVT (int index, int flags)
-{
- __GLXDRIscreen *screen = (__GLXDRIscreen *)
- glxGetScreen(screenInfo.screens[index]);
-
- LogMessage(X_INFO, "AIGLX: Resuming AIGLX clients after VT switch\n");
-
- if (!(*screen->enterVT) (index, flags))
- return FALSE;
-
- glxResumeClients();
-
- return TRUE;
-}
-
-static void
-glxDRILeaveVT (int index, int flags)
-{
- __GLXDRIscreen *screen = (__GLXDRIscreen *)
- glxGetScreen(screenInfo.screens[index]);
-
- LogMessage(X_INFO, "AIGLX: Suspending AIGLX clients for VT switch\n");
-
- glxSuspendClients();
-
- return (*screen->leaveVT) (index, flags);
-}
-
-static void
-initializeExtensions(__GLXDRIscreen *screen)
-{
- const __DRIextension **extensions;
- int i;
-
- extensions = screen->core->getExtensions(screen->driScreen);
-
- __glXEnableExtension(screen->glx_enable_bits,
- "GLX_MESA_copy_sub_buffer");
- LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n");
-
- /* FIXME: only if DDX supports it */
- __glXEnableExtension(screen->glx_enable_bits, "GLX_INTEL_swap_event");
- LogMessage(X_INFO, "AIGLX: enabled GLX_INTEL_swap_event\n");
-
- for (i = 0; extensions[i]; i++) {
-#ifdef __DRI_READ_DRAWABLE
- if (strcmp(extensions[i]->name, __DRI_READ_DRAWABLE) == 0) {
- __glXEnableExtension(screen->glx_enable_bits,
- "GLX_SGI_make_current_read");
-
- LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n");
- }
-#endif
-
-#ifdef __DRI_SWAP_CONTROL
- if (strcmp(extensions[i]->name, __DRI_SWAP_CONTROL) == 0) {
- screen->swapControl =
- (const __DRIswapControlExtension *) extensions[i];
- __glXEnableExtension(screen->glx_enable_bits,
- "GLX_SGI_swap_control");
- __glXEnableExtension(screen->glx_enable_bits,
- "GLX_MESA_swap_control");
-
- LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n");
- }
-#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. */
- LogMessage(X_INFO, "AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n");
- }
-#endif
-
-#ifdef __DRI2_FLUSH
- if (strcmp(extensions[i]->name, __DRI2_FLUSH) == 0 &&
- extensions[i]->version >= __DRI2_FLUSH_VERSION) {
- screen->flush = (__DRI2flushExtension *) extensions[i];
- }
-#endif
-
- /* Ignore unknown extensions */
- }
-}
-
-static __GLXscreen *
-__glXDRIscreenProbe(ScreenPtr pScreen)
-{
- const char *driverName, *deviceName;
- __GLXDRIscreen *screen;
- char filename[128];
- size_t buffer_size;
- ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
- const __DRIextension **extensions;
- const __DRIconfig **driConfigs;
- int i;
-
- screen = xcalloc(1, sizeof *screen);
- if (screen == NULL)
- return NULL;
-
- if (!xf86LoaderCheckSymbol("DRI2Connect") ||
- !DRI2Connect(pScreen, DRI2DriverDRI,
- &screen->fd, &driverName, &deviceName)) {
- LogMessage(X_INFO,
- "AIGLX: Screen %d is not DRI2 capable\n", pScreen->myNum);
- return NULL;
- }
-
- screen->base.destroy = __glXDRIscreenDestroy;
- screen->base.createContext = __glXDRIscreenCreateContext;
- screen->base.createDrawable = __glXDRIscreenCreateDrawable;
- screen->base.swapInterval = __glXDRIdrawableSwapInterval;
- screen->base.pScreen = pScreen;
-
- __glXInitExtensionEnableBits(screen->glx_enable_bits);
-
- 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_DRI2) == 0 &&
- extensions[i]->version >= __DRI_DRI2_VERSION) {
- screen->dri2 = (const __DRIdri2Extension *) extensions[i];
- }
- }
-
- if (screen->core == NULL || screen->dri2 == NULL) {
- LogMessage(X_ERROR, "AIGLX error: %s exports no DRI extension\n",
- driverName);
- goto handle_error;
- }
-
- screen->driScreen =
- (*screen->dri2->createNewScreen)(pScreen->myNum,
- screen->fd,
- 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);
-
- __glXScreenInit(&screen->base, pScreen);
-
- /* The first call simply determines the length of the extension string.
- * This allows us to allocate some memory to hold the extension string,
- * but it requires that we call __glXGetExtensionString a second time.
- */
- buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL);
- if (buffer_size > 0) {
- if (screen->base.GLXextensions != NULL) {
- xfree(screen->base.GLXextensions);
- }
-
- screen->base.GLXextensions = xnfalloc(buffer_size);
- (void) __glXGetExtensionString(screen->glx_enable_bits,
- screen->base.GLXextensions);
- }
-
- /* We're going to assume (perhaps incorrectly?) that all DRI2-enabled
- * drivers support the required extensions for GLX 1.4. The extensions
- * we're assuming are:
- *
- * - GLX_SGI_make_current_read (1.3)
- * - GLX_SGIX_fbconfig (1.3)
- * - GLX_SGIX_pbuffer (1.3)
- * - GLX_ARB_multisample (1.4)
- */
- screen->base.GLXmajor = 1;
- screen->base.GLXminor = 4;
-
- screen->enterVT = pScrn->EnterVT;
- pScrn->EnterVT = glxDRIEnterVT;
- screen->leaveVT = pScrn->LeaveVT;
- pScrn->LeaveVT = glxDRILeaveVT;
-
- 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, "AIGLX: reverting to software rendering\n");
-
- return NULL;
-}
-
-_X_EXPORT __GLXprovider __glXDRI2Provider = {
- __glXDRIscreenProbe,
- "DRI2",
- NULL
-};
+/* + * Copyright © 2007 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 Red Hat, + * Inc not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN + * NO EVENT SHALL RED HAT, 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. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <dlfcn.h> + +#include <drm.h> +#include <GL/gl.h> +#include <GL/internal/dri_interface.h> +#include <GL/glxtokens.h> + +#include <windowstr.h> +#include <os.h> + +#define _XF86DRI_SERVER_ +#include <xf86drm.h> +#include <xf86.h> +#include <dri2.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" + +typedef struct __GLXDRIscreen __GLXDRIscreen; +typedef struct __GLXDRIcontext __GLXDRIcontext; +typedef struct __GLXDRIdrawable __GLXDRIdrawable; + +struct __GLXDRIscreen { + __GLXscreen base; + __DRIscreen *driScreen; + void *driver; + int fd; + + xf86EnterVTProc *enterVT; + xf86LeaveVTProc *leaveVT; + + const __DRIcoreExtension *core; + const __DRIdri2Extension *dri2; + const __DRI2flushExtension *flush; + const __DRIcopySubBufferExtension *copySubBuffer; + const __DRIswapControlExtension *swapControl; + const __DRItexBufferExtension *texBuffer; + + unsigned char glx_enable_bits[__GLX_EXT_BYTES]; +}; + +struct __GLXDRIcontext { + __GLXcontext base; + __DRIcontext *driContext; +}; + +#define MAX_DRAWABLE_BUFFERS 5 + +struct __GLXDRIdrawable { + __GLXdrawable base; + __DRIdrawable *driDrawable; + __GLXDRIscreen *screen; + + /* Dimensions as last reported by DRI2GetBuffers. */ + int width; + int height; + __DRIbuffer buffers[MAX_DRAWABLE_BUFFERS]; + int count; +}; + +static void +__glXDRIdrawableDestroy(__GLXdrawable *drawable) +{ + __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; + const __DRIcoreExtension *core = private->screen->core; + + (*core->destroyDrawable)(private->driDrawable); + + /* If the X window was destroyed, the dri DestroyWindow hook will + * aready have taken care of this, so only call if pDraw isn't NULL. */ + if (drawable->pDraw != NULL) + DRI2DestroyDrawable(drawable->pDraw); + + __glXDrawableRelease(drawable); + + xfree(private); +} + +static void +__glXDRIdrawableCopySubBuffer(__GLXdrawable *drawable, + int x, int y, int w, int h) +{ + __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; + BoxRec box; + RegionRec region; + + box.x1 = x; + box.y1 = private->height - y - h; + box.x2 = x + w; + box.y2 = private->height - y; + REGION_INIT(drawable->pDraw->pScreen, ®ion, &box, 0); + + DRI2CopyRegion(drawable->pDraw, ®ion, + DRI2BufferFrontLeft, DRI2BufferBackLeft); +} + +static void +__glXDRIdrawableWaitX(__GLXdrawable *drawable) +{ + __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; + BoxRec box; + RegionRec region; + + box.x1 = 0; + box.y1 = 0; + box.x2 = private->width; + box.y2 = private->height; + REGION_INIT(drawable->pDraw->pScreen, ®ion, &box, 0); + + DRI2CopyRegion(drawable->pDraw, ®ion, + DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft); +} + +static void +__glXDRIdrawableWaitGL(__GLXdrawable *drawable) +{ + __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; + BoxRec box; + RegionRec region; + + box.x1 = 0; + box.y1 = 0; + box.x2 = private->width; + box.y2 = private->height; + REGION_INIT(drawable->pDraw->pScreen, ®ion, &box, 0); + + DRI2CopyRegion(drawable->pDraw, ®ion, + DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft); +} + +static void +__glXdriSwapEvent(ClientPtr client, void *data, int type, CARD64 ust, + CARD64 msc, CARD64 sbc) +{ + __GLXdrawable *drawable = data; + xGLXBufferSwapComplete wire; + + if (!(drawable->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK)) + return; + + wire.type = __glXEventBase + GLX_BufferSwapComplete; + switch (type) { + case DRI2_EXCHANGE_COMPLETE: + wire.event_type = GLX_EXCHANGE_COMPLETE_INTEL; + break; + case DRI2_BLIT_COMPLETE: + wire.event_type = GLX_BLIT_COMPLETE_INTEL; + break; + case DRI2_FLIP_COMPLETE: + wire.event_type = GLX_FLIP_COMPLETE_INTEL; + break; + default: + /* unknown swap completion type */ + break; + } + wire.sequenceNumber = client->sequence; + wire.drawable = drawable->drawId; + wire.ust_hi = ust >> 32; + wire.ust_lo = ust & 0xffffffff; + wire.msc_hi = msc >> 32; + wire.msc_lo = msc & 0xffffffff; + wire.sbc_hi = sbc >> 32; + wire.sbc_lo = sbc & 0xffffffff; + + WriteEventsToClient(client, 1, (xEvent *) &wire); +} + +/* + * Copy or flip back to front, honoring the swap interval if possible. + * + * If the kernel supports it, we request an event for the frame when the + * swap should happen, then perform the copy when we receive it. + */ +static GLboolean +__glXDRIdrawableSwapBuffers(ClientPtr client, __GLXdrawable *drawable) +{ + __GLXDRIdrawable *priv = (__GLXDRIdrawable *) drawable; + __GLXDRIscreen *screen = priv->screen; + CARD64 unused; + +#if __DRI2_FLUSH_VERSION >= 3 + if (screen->flush) { + (*screen->flush->flush)(priv->driDrawable); + (*screen->flush->invalidate)(priv->driDrawable); + } +#else + if (screen->flush) + (*screen->flush->flushInvalidate)(priv->driDrawable); +#endif + + if (DRI2SwapBuffers(client, drawable->pDraw, 0, 0, 0, &unused, + __glXdriSwapEvent, drawable->pDraw) != Success) + return FALSE; + + return TRUE; +} + +static int +__glXDRIdrawableSwapInterval(__GLXdrawable *drawable, int interval) +{ + if (interval <= 0) /* || interval > BIGNUM? */ + return GLX_BAD_VALUE; + + DRI2SwapInterval(drawable->pDraw, interval); + + return 0; +} + +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); +} + +static Bool +__glXDRIcontextWait(__GLXcontext *baseContext, + __GLXclientState *cl, int *error) +{ + if (DRI2WaitSwap(cl->client, baseContext->drawPriv->pDraw)) { + *error = cl->client->noClientException; + return TRUE; + } + + return FALSE; +} + +#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; + +#if __DRI_TEX_BUFFER_VERSION >= 2 + if (texBuffer->base.version >= 2 && texBuffer->setTexBuffer2 != NULL) { + (*texBuffer->setTexBuffer2)(context->driContext, + glxPixmap->target, + glxPixmap->format, + drawable->driDrawable); + } else +#endif + { + 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; + __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->base.wait = __glXDRIcontextWait; + + context->driContext = + (*screen->dri2->createNewContext)(screen->driScreen, + config->driConfig, + driShare, context); + if (context->driContext == NULL) { + xfree(context); + return NULL; + } + + return &context->base; +} + +static __GLXdrawable * +__glXDRIscreenCreateDrawable(__GLXscreen *screen, + DrawablePtr pDraw, + int type, + XID drawId, + __GLXconfig *glxConfig) +{ + __GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen; + __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig; + __GLXDRIdrawable *private; + + 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->base.waitGL = __glXDRIdrawableWaitGL; + private->base.waitX = __glXDRIdrawableWaitX; + + if (DRI2CreateDrawable(pDraw)) { + xfree(private); + return NULL; + } + + private->driDrawable = + (*driScreen->dri2->createNewDrawable)(driScreen->driScreen, + config->driConfig, private); + + return &private->base; +} + +static __DRIbuffer * +dri2GetBuffers(__DRIdrawable *driDrawable, + int *width, int *height, + unsigned int *attachments, int count, + int *out_count, void *loaderPrivate) +{ + __GLXDRIdrawable *private = loaderPrivate; + DRI2BufferPtr *buffers; + int i; + int j; + + buffers = DRI2GetBuffers(private->base.pDraw, + width, height, attachments, count, out_count); + if (*out_count > MAX_DRAWABLE_BUFFERS) { + *out_count = 0; + return NULL; + } + + private->width = *width; + private->height = *height; + + /* This assumes the DRI2 buffer attachment tokens matches the + * __DRIbuffer tokens. */ + j = 0; + for (i = 0; i < *out_count; i++) { + /* Do not send the real front buffer of a window to the client. + */ + if ((private->base.pDraw->type == DRAWABLE_WINDOW) + && (buffers[i]->attachment == DRI2BufferFrontLeft)) { + continue; + } + + private->buffers[j].attachment = buffers[i]->attachment; + private->buffers[j].name = buffers[i]->name; + private->buffers[j].pitch = buffers[i]->pitch; + private->buffers[j].cpp = buffers[i]->cpp; + private->buffers[j].flags = buffers[i]->flags; + j++; + } + + *out_count = j; + return private->buffers; +} + +static __DRIbuffer * +dri2GetBuffersWithFormat(__DRIdrawable *driDrawable, + int *width, int *height, + unsigned int *attachments, int count, + int *out_count, void *loaderPrivate) +{ + __GLXDRIdrawable *private = loaderPrivate; + DRI2BufferPtr *buffers; + int i; + int j = 0; + + buffers = DRI2GetBuffersWithFormat(private->base.pDraw, + width, height, attachments, count, + out_count); + if (*out_count > MAX_DRAWABLE_BUFFERS) { + *out_count = 0; + return NULL; + } + + private->width = *width; + private->height = *height; + + /* This assumes the DRI2 buffer attachment tokens matches the + * __DRIbuffer tokens. */ + for (i = 0; i < *out_count; i++) { + /* Do not send the real front buffer of a window to the client. + */ + if ((private->base.pDraw->type == DRAWABLE_WINDOW) + && (buffers[i]->attachment == DRI2BufferFrontLeft)) { + continue; + } + + private->buffers[j].attachment = buffers[i]->attachment; + private->buffers[j].name = buffers[i]->name; + private->buffers[j].pitch = buffers[i]->pitch; + private->buffers[j].cpp = buffers[i]->cpp; + private->buffers[j].flags = buffers[i]->flags; + j++; + } + + *out_count = j; + return private->buffers; +} + +static void +dri2FlushFrontBuffer(__DRIdrawable *driDrawable, void *loaderPrivate) +{ + (void) driDrawable; + __glXDRIdrawableWaitGL((__GLXdrawable *) loaderPrivate); +} + +static const __DRIdri2LoaderExtension loaderExtension = { + { __DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION }, + dri2GetBuffers, + dri2FlushFrontBuffer, + dri2GetBuffersWithFormat, +}; + +static const __DRIextension *loader_extensions[] = { + &systemTimeExtension.base, + &loaderExtension.base, + NULL +}; + +static const char dri_driver_path[] = DRI_DRIVER_PATH; + +static Bool +glxDRIEnterVT (int index, int flags) +{ + __GLXDRIscreen *screen = (__GLXDRIscreen *) + glxGetScreen(screenInfo.screens[index]); + + LogMessage(X_INFO, "AIGLX: Resuming AIGLX clients after VT switch\n"); + + if (!(*screen->enterVT) (index, flags)) + return FALSE; + + glxResumeClients(); + + return TRUE; +} + +static void +glxDRILeaveVT (int index, int flags) +{ + __GLXDRIscreen *screen = (__GLXDRIscreen *) + glxGetScreen(screenInfo.screens[index]); + + LogMessage(X_INFO, "AIGLX: Suspending AIGLX clients for VT switch\n"); + + glxSuspendClients(); + + return (*screen->leaveVT) (index, flags); +} + +static void +initializeExtensions(__GLXDRIscreen *screen) +{ + const __DRIextension **extensions; + int i; + + extensions = screen->core->getExtensions(screen->driScreen); + + __glXEnableExtension(screen->glx_enable_bits, + "GLX_MESA_copy_sub_buffer"); + LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n"); + + /* FIXME: only if DDX supports it */ + __glXEnableExtension(screen->glx_enable_bits, "GLX_INTEL_swap_event"); + LogMessage(X_INFO, "AIGLX: enabled GLX_INTEL_swap_event\n"); + + for (i = 0; extensions[i]; i++) { +#ifdef __DRI_READ_DRAWABLE + if (strcmp(extensions[i]->name, __DRI_READ_DRAWABLE) == 0) { + __glXEnableExtension(screen->glx_enable_bits, + "GLX_SGI_make_current_read"); + + LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n"); + } +#endif + +#ifdef __DRI_SWAP_CONTROL + if (strcmp(extensions[i]->name, __DRI_SWAP_CONTROL) == 0) { + screen->swapControl = + (const __DRIswapControlExtension *) extensions[i]; + __glXEnableExtension(screen->glx_enable_bits, + "GLX_SGI_swap_control"); + __glXEnableExtension(screen->glx_enable_bits, + "GLX_MESA_swap_control"); + + LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n"); + } +#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. */ + LogMessage(X_INFO, "AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n"); + } +#endif + +#ifdef __DRI2_FLUSH + if (strcmp(extensions[i]->name, __DRI2_FLUSH) == 0 && + extensions[i]->version >= __DRI2_FLUSH_VERSION) { + screen->flush = (__DRI2flushExtension *) extensions[i]; + } +#endif + + /* Ignore unknown extensions */ + } +} + +static __GLXscreen * +__glXDRIscreenProbe(ScreenPtr pScreen) +{ + const char *driverName, *deviceName; + __GLXDRIscreen *screen; + char filename[128]; + size_t buffer_size; + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + const __DRIextension **extensions; + const __DRIconfig **driConfigs; + int i; + + screen = xcalloc(1, sizeof *screen); + if (screen == NULL) + return NULL; + + if (!xf86LoaderCheckSymbol("DRI2Connect") || + !DRI2Connect(pScreen, DRI2DriverDRI, + &screen->fd, &driverName, &deviceName)) { + LogMessage(X_INFO, + "AIGLX: Screen %d is not DRI2 capable\n", pScreen->myNum); + return NULL; + } + + screen->base.destroy = __glXDRIscreenDestroy; + screen->base.createContext = __glXDRIscreenCreateContext; + screen->base.createDrawable = __glXDRIscreenCreateDrawable; + screen->base.swapInterval = __glXDRIdrawableSwapInterval; + screen->base.pScreen = pScreen; + + __glXInitExtensionEnableBits(screen->glx_enable_bits); + + 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_DRI2) == 0 && + extensions[i]->version >= __DRI_DRI2_VERSION) { + screen->dri2 = (const __DRIdri2Extension *) extensions[i]; + } + } + + if (screen->core == NULL || screen->dri2 == NULL) { + LogMessage(X_ERROR, "AIGLX error: %s exports no DRI extension\n", + driverName); + goto handle_error; + } + + screen->driScreen = + (*screen->dri2->createNewScreen)(pScreen->myNum, + screen->fd, + 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); + + __glXScreenInit(&screen->base, pScreen); + + /* The first call simply determines the length of the extension string. + * This allows us to allocate some memory to hold the extension string, + * but it requires that we call __glXGetExtensionString a second time. + */ + buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL); + if (buffer_size > 0) { + if (screen->base.GLXextensions != NULL) { + xfree(screen->base.GLXextensions); + } + + screen->base.GLXextensions = xnfalloc(buffer_size); + (void) __glXGetExtensionString(screen->glx_enable_bits, + screen->base.GLXextensions); + } + + /* We're going to assume (perhaps incorrectly?) that all DRI2-enabled + * drivers support the required extensions for GLX 1.4. The extensions + * we're assuming are: + * + * - GLX_SGI_make_current_read (1.3) + * - GLX_SGIX_fbconfig (1.3) + * - GLX_SGIX_pbuffer (1.3) + * - GLX_ARB_multisample (1.4) + */ + screen->base.GLXmajor = 1; + screen->base.GLXminor = 4; + + screen->enterVT = pScrn->EnterVT; + pScrn->EnterVT = glxDRIEnterVT; + screen->leaveVT = pScrn->LeaveVT; + pScrn->LeaveVT = glxDRILeaveVT; + + 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, "AIGLX: reverting to software rendering\n"); + + return NULL; +} + +_X_EXPORT __GLXprovider __glXDRI2Provider = { + __glXDRIscreenProbe, + "DRI2", + NULL +}; |