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Diffstat (limited to 'src/glx/drisw_glx.c')
-rw-r--r--src/glx/drisw_glx.c110
1 files changed, 74 insertions, 36 deletions
diff --git a/src/glx/drisw_glx.c b/src/glx/drisw_glx.c
index d8027cc96d..cdb1d9f4dc 100644
--- a/src/glx/drisw_glx.c
+++ b/src/glx/drisw_glx.c
@@ -53,13 +53,8 @@ struct __GLXDRIdrawablePrivateRec
XVisualInfo *visinfo;
XImage *ximage;
- int bpp;
};
-/**
- * swrast loader functions
- */
-
static Bool
XCreateDrawable(__GLXDRIdrawablePrivate * pdp,
Display * dpy, XID drawable, int visualid)
@@ -79,20 +74,21 @@ XCreateDrawable(__GLXDRIdrawablePrivate * pdp,
XChangeGC(dpy, pdp->swapgc, GCFunction, &gcvalues);
XChangeGC(dpy, pdp->swapgc, GCGraphicsExposures, &gcvalues);
- /* create XImage */
+ /* visual */
visTemp.screen = DefaultScreen(dpy);
visTemp.visualid = visualid;
visMask = (VisualScreenMask | VisualIDMask);
pdp->visinfo = XGetVisualInfo(dpy, visMask, &visTemp, &num_visuals);
- pdp->ximage = XCreateImage(dpy, pdp->visinfo->visual, pdp->visinfo->depth, ZPixmap, 0, /* format, offset */
- NULL, /* data */
- 0, 0, /* size */
- 32, /* bitmap_pad */
- 0); /* bytes_per_line */
-
- /* get the true number of bits per pixel */
- pdp->bpp = pdp->ximage->bits_per_pixel;
+ /* create XImage */
+ pdp->ximage = XCreateImage(dpy,
+ pdp->visinfo->visual,
+ pdp->visinfo->depth,
+ ZPixmap, 0, /* format, offset */
+ NULL, /* data */
+ 0, 0, /* width, height */
+ 32, /* bitmap_pad */
+ 0); /* bytes_per_line */
return True;
}
@@ -107,9 +103,14 @@ XDestroyDrawable(__GLXDRIdrawablePrivate * pdp, Display * dpy, XID drawable)
XFreeGC(dpy, pdp->swapgc);
}
+/**
+ * swrast loader functions
+ */
+
static void
swrastGetDrawableInfo(__DRIdrawable * draw,
- int *x, int *y, int *w, int *h, void *loaderPrivate)
+ int *x, int *y, int *w, int *h,
+ void *loaderPrivate)
{
__GLXDRIdrawablePrivate *pdp = loaderPrivate;
__GLXDRIdrawable *pdraw = &(pdp->base);
@@ -118,26 +119,42 @@ swrastGetDrawableInfo(__DRIdrawable * draw,
Window root;
Status stat;
- unsigned int bw, depth;
+ unsigned uw, uh, bw, depth;
drawable = pdraw->xDrawable;
stat = XGetGeometry(dpy, drawable, &root,
- x, y, (unsigned int *) w, (unsigned int *) h,
- &bw, &depth);
+ x, y, &uw, &uh, &bw, &depth);
+ *w = uw;
+ *h = uh;
}
+/**
+ * Align renderbuffer pitch.
+ *
+ * This should be chosen by the driver and the loader (libGL, xserver/glx)
+ * should use the driver provided pitch.
+ *
+ * It seems that the xorg loader (that is the xserver loading swrast_dri for
+ * indirect rendering, not client-side libGL) requires that the pitch is
+ * exactly the image width padded to 32 bits. XXX
+ *
+ * The above restriction can probably be overcome by using ScratchPixmap and
+ * CopyArea in the xserver, similar to ShmPutImage, and setting the width of
+ * the scratch pixmap to 'pitch / cpp'.
+ */
static inline int
-bytes_per_line(int w, int bpp, unsigned mul)
+bytes_per_line(unsigned pitch_bits, unsigned mul)
{
unsigned mask = mul - 1;
- return ((w * bpp + mask) & ~mask) / 8;
+ return ((pitch_bits + mask) & ~mask) / 8;
}
static void
swrastPutImage(__DRIdrawable * draw, int op,
- int x, int y, int w, int h, char *data, void *loaderPrivate)
+ int x, int y, int w, int h,
+ char *data, void *loaderPrivate)
{
__GLXDRIdrawablePrivate *pdp = loaderPrivate;
__GLXDRIdrawable *pdraw = &(pdp->base);
@@ -163,7 +180,7 @@ swrastPutImage(__DRIdrawable * draw, int op,
ximage->data = data;
ximage->width = w;
ximage->height = h;
- ximage->bytes_per_line = bytes_per_line(w, pdp->bpp, 32);
+ ximage->bytes_per_line = bytes_per_line(w * ximage->bits_per_pixel, 32);
XPutImage(dpy, drawable, gc, ximage, 0, 0, x, y, w, h);
@@ -171,24 +188,25 @@ swrastPutImage(__DRIdrawable * draw, int op,
}
static void
-swrastGetImage(__DRIdrawable * draw,
- int x, int y, int w, int h, char *data, void *loaderPrivate)
+swrastGetImage(__DRIdrawable * read,
+ int x, int y, int w, int h,
+ char *data, void *loaderPrivate)
{
- __GLXDRIdrawablePrivate *pdp = loaderPrivate;
- __GLXDRIdrawable *pdraw = &(pdp->base);
- Display *dpy = pdraw->psc->dpy;
- Drawable drawable;
+ __GLXDRIdrawablePrivate *prp = loaderPrivate;
+ __GLXDRIdrawable *pread = &(prp->base);
+ Display *dpy = pread->psc->dpy;
+ Drawable readable;
XImage *ximage;
- drawable = pdraw->xDrawable;
+ readable = pread->xDrawable;
- ximage = pdp->ximage;
+ ximage = prp->ximage;
ximage->data = data;
ximage->width = w;
ximage->height = h;
- ximage->bytes_per_line = bytes_per_line(w, pdp->bpp, 32);
+ ximage->bytes_per_line = bytes_per_line(w * ximage->bits_per_pixel, 32);
- XGetSubImage(dpy, drawable, x, y, w, h, ~0L, ZPixmap, ximage, 0, 0);
+ XGetSubImage(dpy, readable, x, y, w, h, ~0L, ZPixmap, ximage, 0, 0);
ximage->data = NULL;
}
@@ -334,10 +352,17 @@ driCreateDrawable(__GLXscreenConfigs * psc,
return pdraw;
}
-static void
-driSwapBuffers(__GLXDRIdrawable * pdraw)
+static int64_t
+driSwapBuffers(__GLXDRIdrawable * pdraw,
+ int64_t target_msc, int64_t divisor, int64_t remainder)
{
+ (void) target_msc;
+ (void) divisor;
+ (void) remainder;
+
(*pdraw->psc->core->swapBuffers) (pdraw->driDrawable);
+
+ return 0;
}
static void
@@ -350,6 +375,20 @@ driDestroyScreen(__GLXscreenConfigs * psc)
dlclose(psc->driver);
}
+static void *
+driOpenSwrast(void)
+{
+ void *driver = NULL;
+
+ if (driver == NULL)
+ driver = driOpenDriver("swrast");
+
+ if (driver == NULL)
+ driver = driOpenDriver("swrastg");
+
+ return driver;
+}
+
static __GLXDRIscreen *
driCreateScreen(__GLXscreenConfigs * psc, int screen,
__GLXdisplayPrivate * priv)
@@ -357,14 +396,13 @@ driCreateScreen(__GLXscreenConfigs * psc, int screen,
__GLXDRIscreen *psp;
const __DRIconfig **driver_configs;
const __DRIextension **extensions;
- const char *driverName = "swrast";
int i;
psp = Xcalloc(1, sizeof *psp);
if (psp == NULL)
return NULL;
- psc->driver = driOpenDriver(driverName);
+ psc->driver = driOpenSwrast();
if (psc->driver == NULL)
goto handle_error;
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-17 18:18:53 +0000