libGL: Consolidate DRI initialization in dri_glx.c

Move a lot of code over from glx_ext.c.

1 files changed, 407 insertions, 0 deletions

diff --git a/src/glx/x11/dri_glx.c b/src/glx/x11/dri_glx.c
index dab454e8e30..c84e384cf34 100644
--- a/src/glx/x11/dri_glx.c
+++ b/src/glx/x11/dri_glx.c
@@ -48,6 +48,10 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "dri_glx.h"
 #include <sys/types.h>
 #include <stdarg.h>
+#include "glcontextmodes.h"
+#include <sys/mman.h>
+#include "xf86drm.h"
+
 
 #ifndef RTLD_NOW
 #define RTLD_NOW 0
@@ -383,6 +387,409 @@ PUBLIC const char *glXGetDriverConfig (const char *driverName) {
       return NULL;
 }
 
+static void
+filter_modes( __GLcontextModes ** server_modes,
+	      const __GLcontextModes * driver_modes )
+{
+    __GLcontextModes * m;
+    __GLcontextModes ** prev_next;
+    const __GLcontextModes * check;
+
+    if (driver_modes == NULL) {
+	fprintf(stderr, "libGL warning: 3D driver returned no fbconfigs.\n");
+	return;
+    }
+
+    /* For each mode in server_modes, check to see if a matching mode exists
+     * in driver_modes.  If not, then the mode is not available.
+     */
+
+    prev_next = server_modes;
+    for ( m = *prev_next ; m != NULL ; m = *prev_next ) {
+	GLboolean do_delete = GL_TRUE;
+
+	for ( check = driver_modes ; check != NULL ; check = check->next ) {
+	    if ( _gl_context_modes_are_same( m, check ) ) {
+		do_delete = GL_FALSE;
+		break;
+	    }
+	}
+
+	/* The 3D has to support all the modes that match the GLX visuals
+	 * sent from the X server.
+	 */
+	if ( do_delete && (m->visualID != 0) ) {
+	    do_delete = GL_FALSE;
+
+	    /* don't warn for this visual (Novell #247471 / X.Org #6689) */
+	    if (m->visualRating != GLX_NON_CONFORMANT_CONFIG) {
+		fprintf(stderr, "libGL warning: 3D driver claims to not "
+			"support visual 0x%02x\n", m->visualID);
+	    }
+	}
+
+	if ( do_delete ) {
+	    *prev_next = m->next;
+
+	    m->next = NULL;
+	    _gl_context_modes_destroy( m );
+	}
+	else {
+	    prev_next = & m->next;
+	}
+    }
+}
+
+#ifdef XDAMAGE_1_1_INTERFACE
+static GLboolean has_damage_post(Display *dpy)
+{
+    static GLboolean inited = GL_FALSE;
+    static GLboolean has_damage;
+
+    if (!inited) {
+	int major, minor;
+
+	if (XDamageQueryVersion(dpy, &major, &minor) &&
+	    major == 1 && minor >= 1)
+	{
+	    has_damage = GL_TRUE;
+	} else {
+	    has_damage = GL_FALSE;
+	}
+	inited = GL_TRUE;
+    }
+
+    return has_damage;
+}
+#endif /* XDAMAGE_1_1_INTERFACE */
+
+static void __glXReportDamage(__DRIdrawable *driDraw,
+			      int x, int y,
+			      drm_clip_rect_t *rects, int num_rects,
+			      GLboolean front_buffer)
+{
+#ifdef XDAMAGE_1_1_INTERFACE
+    XRectangle *xrects;
+    XserverRegion region;
+    int i;
+    int x_off, y_off;
+    __GLXdrawable *glxDraw =
+	containerOf(driDraw, __GLXdrawable, driDrawable);
+    __GLXscreenConfigs *psc = glxDraw->psc;
+    Display *dpy = psc->dpy;
+    Drawable drawable;
+
+    if (!has_damage_post(dpy))
+	return;
+
+    if (front_buffer) {
+	x_off = x;
+	y_off = y;
+	drawable = RootWindow(dpy, psc->scr);
+    } else{
+	x_off = 0;
+	y_off = 0;
+	drawable = glxDraw->drawable;
+    }
+
+    xrects = malloc(sizeof(XRectangle) * num_rects);
+    if (xrects == NULL)
+	return;
+
+    for (i = 0; i < num_rects; i++) {
+	xrects[i].x = rects[i].x1 + x_off;
+	xrects[i].y = rects[i].y1 + y_off;
+	xrects[i].width = rects[i].x2 - rects[i].x1;
+	xrects[i].height = rects[i].y2 - rects[i].y1;
+    }
+    region = XFixesCreateRegion(dpy, xrects, num_rects);
+    free(xrects);
+    XDamageAdd(dpy, drawable, region);
+    XFixesDestroyRegion(dpy, region);
+#endif
+}
+
+static GLboolean
+__glXDRIGetDrawableInfo(__DRIdrawable *drawable,
+			unsigned int *index, unsigned int *stamp, 
+			int *X, int *Y, int *W, int *H,
+			int *numClipRects, drm_clip_rect_t ** pClipRects,
+			int *backX, int *backY,
+			int *numBackClipRects, drm_clip_rect_t **pBackClipRects)
+{
+    __GLXdrawable *glxDraw =
+	containerOf(drawable, __GLXdrawable, driDrawable);
+    __GLXscreenConfigs *psc = glxDraw->psc;
+    Display *dpy = psc->dpy;
+
+    return XF86DRIGetDrawableInfo(dpy, psc->scr, glxDraw->drawable,
+				  index, stamp, X, Y, W, H,
+				  numClipRects, pClipRects,
+				  backX, backY,
+				  numBackClipRects, pBackClipRects);
+}
+
+
+/**
+ * Table of functions exported by the loader to the driver.
+ */
+static const __DRIcontextModesExtension contextModesExtension = {
+    { __DRI_CONTEXT_MODES, __DRI_CONTEXT_MODES_VERSION },
+    _gl_context_modes_create,
+    _gl_context_modes_destroy,
+};
+
+static const __DRIsystemTimeExtension systemTimeExtension = {
+    { __DRI_SYSTEM_TIME, __DRI_SYSTEM_TIME_VERSION },
+    __glXGetUST,
+    __driGetMscRateOML,
+};
+
+static const __DRIgetDrawableInfoExtension getDrawableInfoExtension = {
+    { __DRI_GET_DRAWABLE_INFO, __DRI_GET_DRAWABLE_INFO_VERSION },
+    __glXDRIGetDrawableInfo
+};
+
+static const __DRIdamageExtension damageExtension = {
+    { __DRI_DAMAGE, __DRI_DAMAGE_VERSION },
+    __glXReportDamage,
+};
+
+static const __DRIextension *loader_extensions[] = {
+    &contextModesExtension.base,
+    &systemTimeExtension.base,
+    &getDrawableInfoExtension.base,
+    &damageExtension.base,
+    NULL
+};
+
+
+
+/**
+ * Perform the required libGL-side initialization and call the client-side
+ * driver's \c __driCreateNewScreen function.
+ * 
+ * \param dpy    Display pointer.
+ * \param scrn   Screen number on the display.
+ * \param psc    DRI screen information.
+ * \param driDpy DRI display information.
+ * \param createNewScreen  Pointer to the client-side driver's
+ *               \c __driCreateNewScreen function.
+ * \returns A pointer to the \c __DRIscreenPrivate structure returned by
+ *          the client-side driver on success, or \c NULL on failure.
+ * 
+ * \todo This function needs to be modified to remove context-modes from the
+ *       list stored in the \c __GLXscreenConfigsRec to match the list
+ *       returned by the client-side driver.
+ */
+static void *
+CallCreateNewScreen(Display *dpy, int scrn, __GLXscreenConfigs *psc,
+		    __DRIdisplay * driDpy,
+		    PFNCREATENEWSCREENFUNC createNewScreen)
+{
+    __DRIscreenPrivate *psp = NULL;
+#ifndef GLX_USE_APPLEGL
+    drm_handle_t hSAREA;
+    drmAddress pSAREA = MAP_FAILED;
+    char *BusID;
+    __DRIversion   ddx_version;
+    __DRIversion   dri_version;
+    __DRIversion   drm_version;
+    __DRIframebuffer  framebuffer;
+    int   fd = -1;
+    int   status;
+    const char * err_msg;
+    const char * err_extra;
+
+    dri_version.major = driDpy->private->driMajor;
+    dri_version.minor = driDpy->private->driMinor;
+    dri_version.patch = driDpy->private->driPatch;
+
+
+    err_msg = "XF86DRIOpenConnection";
+    err_extra = NULL;
+
+    framebuffer.base = MAP_FAILED;
+    framebuffer.dev_priv = NULL;
+
+    if (XF86DRIOpenConnection(dpy, scrn, &hSAREA, &BusID)) {
+        int newlyopened;
+	fd = drmOpenOnce(NULL,BusID, &newlyopened);
+	Xfree(BusID); /* No longer needed */
+
+	err_msg = "open DRM";
+	err_extra = strerror( -fd );
+
+	if (fd >= 0) {
+	    drm_magic_t magic;
+
+	    err_msg = "drmGetMagic";
+	    err_extra = NULL;
+
+	    if (!drmGetMagic(fd, &magic)) {
+		drmVersionPtr version = drmGetVersion(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;
+		}
+
+		err_msg = "XF86DRIAuthConnection";
+		if (!newlyopened || XF86DRIAuthConnection(dpy, scrn, magic)) {
+		    char *driverName;
+
+		    /*
+		     * Get device name (like "tdfx") and the ddx version
+		     * numbers.  We'll check the version in each DRI driver's
+		     * "createNewScreen" function.
+		     */
+		    err_msg = "XF86DRIGetClientDriverName";
+		    if (XF86DRIGetClientDriverName(dpy, scrn,
+						   &ddx_version.major,
+						   &ddx_version.minor,
+						   &ddx_version.patch,
+						   &driverName)) {
+			drm_handle_t  hFB;
+			int        junk;
+
+			/* No longer needed. */
+			Xfree( driverName );
+
+
+			/*
+			 * Get device-specific info.  pDevPriv will point to a struct
+			 * (such as DRIRADEONRec in xfree86/driver/ati/radeon_dri.h)
+			 * that has information about the screen size, depth, pitch,
+			 * ancilliary buffers, DRM mmap handles, etc.
+			 */
+			err_msg = "XF86DRIGetDeviceInfo";
+			if (XF86DRIGetDeviceInfo(dpy, scrn,
+						 &hFB,
+						 &junk,
+						 &framebuffer.size,
+						 &framebuffer.stride,
+						 &framebuffer.dev_priv_size,
+						 &framebuffer.dev_priv)) {
+			    framebuffer.width = DisplayWidth(dpy, scrn);
+			    framebuffer.height = DisplayHeight(dpy, scrn);
+
+			    /*
+			     * Map the framebuffer region.
+			     */
+			    status = drmMap(fd, hFB, framebuffer.size, 
+					    (drmAddressPtr)&framebuffer.base);
+
+			    err_msg = "drmMap of framebuffer";
+			    err_extra = strerror( -status );
+
+			    if ( status == 0 ) {
+				/*
+				 * Map the SAREA region.  Further mmap regions
+				 * may be setup in each DRI driver's
+				 * "createNewScreen" function.
+				 */
+				status = drmMap(fd, hSAREA, SAREA_MAX, 
+						&pSAREA);
+
+				err_msg = "drmMap of sarea";
+				err_extra = strerror( -status );
+
+				if ( status == 0 ) {
+				    __GLcontextModes * driver_modes = NULL;
+
+				    err_msg = "InitDriver";
+				    err_extra = NULL;
+				    psp = (*createNewScreen)(scrn,
+							     &psc->driScreen,
+							     & ddx_version,
+							     & dri_version,
+							     & drm_version,
+							     & framebuffer,
+							     pSAREA,
+							     fd,
+							     loader_extensions,
+							     & driver_modes );
+
+				    filter_modes(&psc->configs, driver_modes);
+				    filter_modes(&psc->visuals, driver_modes);
+				    _gl_context_modes_destroy(driver_modes);
+				}
+			    }
+			}
+		    }
+		}
+	    }
+	}
+    }
+
+    if ( psp == NULL ) {
+	if ( pSAREA != MAP_FAILED ) {
+	    (void)drmUnmap(pSAREA, SAREA_MAX);
+	}
+
+	if ( framebuffer.base != MAP_FAILED ) {
+	    (void)drmUnmap((drmAddress)framebuffer.base, framebuffer.size);
+	}
+
+	if ( framebuffer.dev_priv != NULL ) {
+	    Xfree(framebuffer.dev_priv);
+	}
+
+	if ( fd >= 0 ) {
+	    (void)drmCloseOnce(fd);
+	}
+
+	(void)XF86DRICloseConnection(dpy, scrn);
+
+	if ( err_extra != NULL ) {
+	    fprintf(stderr, "libGL error: %s failed (%s)\n", err_msg,
+		    err_extra);
+	}
+	else {
+	    fprintf(stderr, "libGL error: %s failed\n", err_msg );
+	}
+
+        fprintf(stderr, "libGL error: reverting to (slow) indirect rendering\n");
+    }
+#endif /* !GLX_USE_APPLEGL */
+
+    return psp;
+}
+
+void
+driCreateScreen(__GLXscreenConfigs *psc, int screen,
+		__GLXdisplayPrivate *priv)
+{
+    /* Create drawable hash */
+    psc->drawHash = __glxHashCreate();
+    if ( psc->drawHash == NULL )
+	return;
+
+    /* Initialize per screen dynamic client GLX extensions */
+    psc->ext_list_first_time = GL_TRUE;
+    /* Initialize the direct rendering per screen data and functions */
+    if (priv->driDisplay.private != NULL) {
+	/* FIXME: Should it be some sort of an error if createNewScreen[i]
+	 * FIXME: is NULL?
+	 */
+	if (priv->driDisplay.createNewScreen &&
+	    priv->driDisplay.createNewScreen[screen]) {
+
+	    psc->driScreen.private =
+		CallCreateNewScreen(psc->dpy, screen, psc,
+				    & priv->driDisplay,
+				    priv->driDisplay.createNewScreen[screen] );
+	    if (psc->driScreen.private != NULL)
+		__glXScrEnableDRIExtension(psc);
+	}
+    }
+}
 
 /* Called from __glXFreeDisplayPrivate.
  */