Some render bugs

2 files changed, 209 insertions, 0 deletions

diff --git a/exadamage.c b/exadamage.c
new file mode 100644
index 0000000..d72ef0c
--- /dev/null
+++ b/exadamage.c
@@ -0,0 +1,101 @@
+#include <X11/Xlib.h>
+#include <X11/extensions/Xdamage.h>
+#include <X11/extensions/Xrender.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static char glyphdata[4096] =
+{
+};
+
+static GlyphSet
+make_glyphs (Display *dpy)
+{
+    GlyphSet glyphset;
+    Glyph gid = 1;
+    XGlyphInfo glyphinfo;
+    int i;
+
+    for (i = 0; i < sizeof (glyphdata); ++i)
+    {
+	glyphdata[i] = i & 0x07;
+    }
+
+    glyphinfo.width = 64;
+    glyphinfo.height = 64;
+    glyphinfo.x = 0;
+    glyphinfo.y = 0;
+    glyphinfo.xOff = 0;
+    glyphinfo.yOff = 0;
+
+    glyphset = XRenderCreateGlyphSet (
+	dpy, XRenderFindStandardFormat (dpy, PictStandardA8));
+
+    XRenderAddGlyphs (
+	dpy, glyphset, &gid, &glyphinfo, 1, glyphdata, 64 * 64);
+
+    return glyphset;
+}
+
+
+int
+main ()
+{
+    Display *dpy = XOpenDisplay (NULL);
+    Window window;
+    Damage damage;
+    int devent, derror;
+    int revent, rerror;
+    Picture dst;
+    Picture src;
+    XRenderPictureAttributes attr;
+    GlyphSet glyphset;
+    XRenderColor color =
+    {
+	0x8080, 0xffff, 0x3232, 0xefef
+    };
+
+    window = XCreateSimpleWindow (
+	dpy, DefaultRootWindow (dpy), 100, 100,
+	300, 300, 0, 0, 0);
+
+    XDamageQueryExtension (dpy, &devent, &derror);
+    XRenderQueryExtension (dpy, &revent, &rerror);
+
+    damage = XDamageCreate (dpy, window, XDamageReportRawRectangles);
+
+    XMapWindow (dpy, window);
+
+    src = XRenderCreateSolidFill (dpy, &color);
+    dst = XRenderCreatePicture (
+	dpy, window, XRenderFindStandardFormat (dpy, PictStandardRGB24),
+	0, &attr);
+
+    glyphset = make_glyphs(dpy);
+
+    for (;;)
+    {
+	XEvent event;
+	char c = 1;
+	int dstx = rand() % 300;
+	int dsty = rand() % 300;
+
+	XSync (dpy, False);
+
+	while (XPending (dpy))
+	{
+	    XNextEvent (dpy, &event);
+
+	    if (event.type == devent + XDamageNotify)
+		printf ("Got damage\n");
+	}
+
+	XRenderCompositeString8 (dpy, PictOpOver, src, dst, NULL,
+				 glyphset, 0, 0, dstx, dsty, &c, 1);
+
+	usleep (70000);
+    }
+    return 0;
+}
diff --git a/trapoffset.c b/trapoffset.c
new file mode 100644
index 0000000..a6186b9
--- /dev/null
+++ b/trapoffset.c
@@ -0,0 +1,108 @@
+#include <X11/Xlib.h>
+#include <X11/extensions/Xdamage.h>
+#include <X11/extensions/Xrender.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static char glyphdata[4096] =
+{
+};
+
+static GlyphSet
+make_glyphs (Display *dpy)
+{
+    GlyphSet glyphset;
+    Glyph gid = 1;
+    XGlyphInfo glyphinfo;
+    int i;
+
+    for (i = 0; i < sizeof (glyphdata); ++i)
+    {
+	glyphdata[i] = i & 0x07;
+    }
+
+    glyphinfo.width = 64;
+    glyphinfo.height = 64;
+    glyphinfo.x = 0;
+    glyphinfo.y = 0;
+    glyphinfo.xOff = 0;
+    glyphinfo.yOff = 0;
+
+    glyphset = XRenderCreateGlyphSet (
+	dpy, XRenderFindStandardFormat (dpy, PictStandardA8));
+
+    XRenderAddGlyphs (
+	dpy, glyphset, &gid, &glyphinfo, 1, glyphdata, 64 * 64);
+
+    return glyphset;
+}
+
+
+int
+main ()
+{
+    Display *dpy = XOpenDisplay (NULL);
+    Window window;
+    Damage damage;
+    int devent, derror;
+    int revent, rerror;
+    Picture dst;
+    Picture src;
+    XRenderPictureAttributes attr;
+    XTrapezoid traps[1] =
+    {
+	{
+	    10 << 16, 40 << 16,
+	    { {   0 << 16, 0 << 16 }, { 10 << 16, 50 << 16 } },
+	    { { 150 << 16, 0 << 16 }, { 160 << 16, 50 << 16 } },
+	}
+    };
+    XRenderColor color =
+    {
+	0x8080, 0xffff, 0x3232, 0xefef
+    };
+
+    window = XCreateSimpleWindow (
+	dpy, DefaultRootWindow (dpy), 100, 100,
+	300, 300, 0, 0, 0);
+
+    XDamageQueryExtension (dpy, &devent, &derror);
+    XRenderQueryExtension (dpy, &revent, &rerror);
+
+    damage = XDamageCreate (dpy, window, XDamageReportRawRectangles);
+
+    XMapWindow (dpy, window);
+
+    src = XRenderCreateSolidFill (dpy, &color);
+    dst = XRenderCreatePicture (
+	dpy, window, XRenderFindStandardFormat (dpy, PictStandardRGB24),
+	0, &attr);
+
+    for (;;)
+    {
+	XEvent event;
+	char c = 1;
+	int dstx = rand() % 300;
+	int dsty = rand() % 300;
+
+	XSync (dpy, False);
+
+#if 0
+	while (XPending (dpy))
+	{
+	    XNextEvent (dpy, &event);
+
+	    if (event.type == devent + XDamageNotify)
+		printf ("Got damage\n");
+	}
+#endif
+
+	XRenderCompositeTrapezoids (dpy, PictOpOver, src, dst, NULL,
+				    0, 0, traps, 1);
+
+	usleep (70000);
+    }
+    return 0;
+}