summaryrefslogtreecommitdiff
path: root/GL/glx/glxdri2.c
diff options
context:
space:
mode:
Diffstat (limited to 'GL/glx/glxdri2.c')
-rw-r--r--GL/glx/glxdri2.c633
1 files changed, 633 insertions, 0 deletions
diff --git a/GL/glx/glxdri2.c b/GL/glx/glxdri2.c
new file mode 100644
index 000000000..d1c8d417e
--- /dev/null
+++ b/GL/glx/glxdri2.c
@@ -0,0 +1,633 @@
+/*
+ * 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 <sys/time.h>
+#include <dlfcn.h>
+
+#include <drm.h>
+#include <GL/gl.h>
+#include <GL/internal/dri_interface.h>
+
+#include <windowstr.h>
+#include <os.h>
+
+#define _XF86DRI_SERVER_
+#include <xf86drm.h>
+#include <xf86dristr.h>
+#include <xf86str.h>
+#include <xf86.h>
+#include <dri2.h>
+
+#include "glxserver.h"
+#include "glxutil.h"
+#include "glcontextmodes.h"
+
+#include "g_disptab.h"
+#include "glapitable.h"
+#include "glapi.h"
+#include "glthread.h"
+#include "dispatch.h"
+#include "extension_string.h"
+
+#define containerOf(ptr, type, member) \
+ (type *)( (char *)ptr - offsetof(type,member) )
+
+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;
+
+ __DRIcopySubBufferExtension *copySubBuffer;
+ __DRIswapControlExtension *swapControl;
+ __DRItexBufferExtension *texBuffer;
+
+ unsigned char glx_enable_bits[__GLX_EXT_BYTES];
+};
+
+struct __GLXDRIcontext {
+ __GLXcontext base;
+ __DRIcontext driContext;
+ drm_context_t hwContext;
+};
+
+struct __GLXDRIdrawable {
+ __GLXdrawable base;
+ __DRIdrawable driDrawable;
+};
+
+static const char CREATE_NEW_SCREEN_FUNC[] = __DRI2_CREATE_NEW_SCREEN_STRING;
+
+static void
+__glXDRIdrawableDestroy(__GLXdrawable *drawable)
+{
+ __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
+
+ (*private->driDrawable.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->pScreen, drawable->pDraw);
+
+ xfree(private);
+}
+
+static GLboolean
+__glXDRIdrawableResize(__GLXdrawable *glxPriv)
+{
+ /* Nothing to do here, the DRI driver asks the server for drawable
+ * geometry when it sess the SAREA timestamps change.*/
+
+ return GL_TRUE;
+}
+
+static GLboolean
+__glXDRIdrawableSwapBuffers(__GLXdrawable *basePrivate)
+{
+ __GLXDRIdrawable *private = (__GLXDRIdrawable *) basePrivate;
+
+ (*private->driDrawable.swapBuffers)(&private->driDrawable);
+
+ return TRUE;
+}
+
+
+static int
+__glXDRIdrawableSwapInterval(__GLXdrawable *baseDrawable, int interval)
+{
+ __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseDrawable;
+ __GLXDRIscreen *screen = (__GLXDRIscreen *)
+ glxGetScreen(baseDrawable->pDraw->pScreen);
+
+ if (screen->swapControl)
+ screen->swapControl->setSwapInterval(&draw->driDrawable, interval);
+
+ return 0;
+}
+
+
+static void
+__glXDRIdrawableCopySubBuffer(__GLXdrawable *basePrivate,
+ int x, int y, int w, int h)
+{
+ __GLXDRIdrawable *private = (__GLXDRIdrawable *) basePrivate;
+ __GLXDRIscreen *screen = (__GLXDRIscreen *)
+ glxGetScreen(basePrivate->pDraw->pScreen);
+
+ if (screen->copySubBuffer)
+ screen->copySubBuffer->copySubBuffer(&private->driDrawable,
+ x, y, w, h);
+}
+
+static void
+__glXDRIcontextDestroy(__GLXcontext *baseContext)
+{
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) baseContext->pGlxScreen;
+
+ context->driContext.destroyContext(&context->driContext);
+ drmDestroyContext(screen->fd, context->hwContext);
+ __glXContextDestroy(&context->base);
+ xfree(context);
+}
+
+static int
+__glXDRIcontextMakeCurrent(__GLXcontext *baseContext)
+{
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+ __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
+ __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
+
+ return (*context->driContext.bindContext)(&context->driContext,
+ &draw->driDrawable,
+ &read->driDrawable);
+}
+
+static int
+__glXDRIcontextLoseCurrent(__GLXcontext *baseContext)
+{
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+
+ return (*context->driContext.unbindContext)(&context->driContext);
+}
+
+static int
+__glXDRIcontextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc,
+ unsigned long mask)
+{
+ __GLXDRIcontext *dst = (__GLXDRIcontext *) baseDst;
+ __GLXDRIcontext *src = (__GLXDRIcontext *) baseSrc;
+
+ /* FIXME: We will need to add DRIcontext::copyContext for this. */
+
+ (void) dst;
+ (void) src;
+
+ return FALSE;
+}
+
+static int
+__glXDRIcontextForceCurrent(__GLXcontext *baseContext)
+{
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+ __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
+ __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
+
+ return (*context->driContext.bindContext)(&context->driContext,
+ &draw->driDrawable,
+ &read->driDrawable);
+}
+
+#ifdef __DRI_TEX_BUFFER
+
+#define isPowerOfTwo(n) (((n) & ((n) - 1 )) == 0)
+
+static int
+__glXDRIbindTexImage(__GLXcontext *baseContext,
+ int buffer,
+ __GLXdrawable *glxPixmap)
+{
+ ScreenPtr pScreen = glxPixmap->pDraw->pScreen;
+ __GLXDRIscreen * const screen = (__GLXDRIscreen *) glxGetScreen(pScreen);
+ PixmapPtr pixmap;
+ __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+ unsigned int flags;
+ int w, h, target;
+
+ if (screen->texBuffer == NULL)
+ return Success;
+
+ pixmap = (PixmapPtr) glxPixmap->pDraw;
+ w = pixmap->drawable.width;
+ h = pixmap->drawable.height;
+
+ if (!isPowerOfTwo(w) || !isPowerOfTwo(h))
+ target = GL_TEXTURE_RECTANGLE_ARB;
+ else
+ target = GL_TEXTURE_2D;
+
+ screen->texBuffer->setTexBuffer(&context->driContext,
+ target,
+ DRI2GetPixmapHandle(pixmap, &flags),
+ pixmap->drawable.depth,
+ pixmap->devKind,
+ h);
+
+ 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->driScreen.destroyScreen(&screen->driScreen);
+
+ dlclose(screen->driver);
+
+ __glXScreenDestroy(baseScreen);
+
+ xfree(screen);
+}
+
+static __GLXcontext *
+__glXDRIscreenCreateContext(__GLXscreen *baseScreen,
+ __GLcontextModes *modes,
+ __GLXcontext *baseShareContext)
+{
+ __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
+ __GLXDRIcontext *context, *shareContext;
+ __DRIcontext *driShare;
+
+ shareContext = (__GLXDRIcontext *) baseShareContext;
+ if (shareContext)
+ driShare = &shareContext->driContext;
+ else
+ driShare = NULL;
+
+ context = xalloc(sizeof *context);
+ if (context == NULL)
+ return NULL;
+
+ memset(context, 0, sizeof *context);
+ context->base.destroy = __glXDRIcontextDestroy;
+ context->base.makeCurrent = __glXDRIcontextMakeCurrent;
+ context->base.loseCurrent = __glXDRIcontextLoseCurrent;
+ context->base.copy = __glXDRIcontextCopy;
+ context->base.forceCurrent = __glXDRIcontextForceCurrent;
+ context->base.textureFromPixmap = &__glXDRItextureFromPixmap;
+
+ if (drmCreateContext(screen->fd, &context->hwContext))
+ return GL_FALSE;
+
+ context->driContext.private =
+ screen->driScreen.createNewContext(&screen->driScreen,
+ modes,
+ 0, /* render type */
+ driShare,
+ context->hwContext,
+ &context->driContext);
+
+ return &context->base;
+}
+
+static __GLXdrawable *
+__glXDRIscreenCreateDrawable(__GLXscreen *screen,
+ DrawablePtr pDraw,
+ int type,
+ XID drawId,
+ __GLcontextModes *modes)
+{
+ __GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
+ __GLXDRIdrawable *private;
+ GLboolean retval;
+ drm_drawable_t hwDrawable;
+
+ private = xalloc(sizeof *private);
+ if (private == NULL)
+ return NULL;
+
+ memset(private, 0, sizeof *private);
+
+ if (!__glXDrawableInit(&private->base, screen,
+ pDraw, type, drawId, modes)) {
+ xfree(private);
+ return NULL;
+ }
+
+ private->base.destroy = __glXDRIdrawableDestroy;
+ private->base.resize = __glXDRIdrawableResize;
+ private->base.swapBuffers = __glXDRIdrawableSwapBuffers;
+ private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer;
+
+ retval = DRI2CreateDrawable(screen->pScreen, pDraw, &hwDrawable);
+
+ private->driDrawable.private =
+ (driScreen->driScreen.createNewDrawable)(&driScreen->driScreen,
+ modes,
+ &private->driDrawable,
+ hwDrawable, 0, NULL);
+
+ return &private->base;
+}
+
+static int
+getUST(int64_t *ust)
+{
+ struct timeval tv;
+
+ if (ust == NULL)
+ return -EFAULT;
+
+ if (gettimeofday(&tv, NULL) == 0) {
+ ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
+ return 0;
+ } else {
+ return -errno;
+ }
+}
+
+static void __glXReportDamage(__DRIdrawable *driDraw,
+ int x, int y,
+ drm_clip_rect_t *rects, int num_rects,
+ GLboolean front_buffer)
+{
+ __GLXDRIdrawable *drawable =
+ containerOf(driDraw, __GLXDRIdrawable, driDrawable);
+ DrawablePtr pDraw = drawable->base.pDraw;
+ RegionRec region;
+
+ REGION_INIT(pDraw->pScreen, &region, (BoxPtr) rects, num_rects);
+ REGION_TRANSLATE(pScreen, &region, pDraw->x, pDraw->y);
+ DamageDamageRegion(pDraw, &region);
+ REGION_UNINIT(pDraw->pScreen, &region);
+}
+
+/* Table of functions that we export to the driver. */
+static const __DRIinterfaceMethods interface_methods = {
+ _gl_context_modes_create,
+ _gl_context_modes_destroy,
+
+ NULL,
+
+ getUST,
+ NULL,
+
+ __glXReportDamage,
+};
+
+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->driScreen.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 = (__DRIcopySubBufferExtension *) extensions[i];
+ __glXEnableExtension(screen->glx_enable_bits,
+ "GLX_MESA_copy_sub_buffer");
+
+ LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n");
+ }
+#endif
+
+#ifdef __DRI_SWAP_CONTROL
+ if (strcmp(extensions[i]->name, __DRI_SWAP_CONTROL) == 0) {
+ screen->swapControl = (__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 = (__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
+ /* Ignore unknown extensions */
+ }
+}
+
+static __GLXscreen *
+__glXDRIscreenProbe(ScreenPtr pScreen)
+{
+ __DRI2_CREATE_NEW_SCREEN_FUNC *createNewScreen;
+ __DRIversion ddx_version;
+ __DRIversion dri_version;
+ __DRIversion drm_version;
+ drmVersionPtr version;
+ const char *driverName;
+ __GLXDRIscreen *screen;
+ char filename[128];
+ size_t buffer_size;
+ ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+ unsigned int sareaHandle;
+
+ screen = xalloc(sizeof *screen);
+ if (screen == NULL)
+ return NULL;
+ memset(screen, 0, sizeof *screen);
+
+ if (!xf86LoaderCheckSymbol("DRI2Connect") ||
+ !DRI2Connect(pScreen,
+ &screen->fd,
+ &driverName,
+ &ddx_version.major,
+ &ddx_version.minor,
+ &ddx_version.patch,
+ &sareaHandle)) {
+ 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);
+
+ /* DRI protocol version. */
+ dri_version.major = XF86DRI_MAJOR_VERSION;
+ dri_version.minor = XF86DRI_MINOR_VERSION;
+ dri_version.patch = XF86DRI_PATCH_VERSION;
+
+ version = drmGetVersion(screen->fd);
+ if (version) {
+ drm_version.major = version->version_major;
+ drm_version.minor = version->version_minor;
+ drm_version.patch = version->version_patchlevel;
+ drmFreeVersion(version);
+ }
+ else {
+ drm_version.major = -1;
+ drm_version.minor = -1;
+ drm_version.patch = -1;
+ }
+
+ 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;
+ }
+
+ createNewScreen = dlsym(screen->driver, CREATE_NEW_SCREEN_FUNC);
+ if (createNewScreen == NULL) {
+ LogMessage(X_ERROR, "AIGLX error: dlsym for %s failed (%s)\n",
+ CREATE_NEW_SCREEN_FUNC, dlerror());
+ goto handle_error;
+ }
+
+ screen->driScreen.private =
+ (*createNewScreen)(pScreen->myNum,
+ &screen->driScreen,
+ &ddx_version,
+ &dri_version,
+ &drm_version,
+ screen->fd,
+ sareaHandle,
+ &interface_methods,
+ &screen->base.fbconfigs);
+
+ if (screen->driScreen.private == NULL) {
+ LogMessage(X_ERROR, "AIGLX error: Calling driver entry point failed");
+ goto handle_error;
+ }
+
+ initializeExtensions(screen);
+
+ __glXScreenInit(&screen->base, pScreen);
+
+ 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);
+ }
+
+ 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;
+}
+
+__GLXprovider __glXDRI2Provider = {
+ __glXDRIscreenProbe,
+ "DRI2",
+ NULL
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 08:21:13 +0000