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-rw-r--r--xcb-demo/xcbxvinfo.c242
1 files changed, 126 insertions, 116 deletions
diff --git a/xcb-demo/xcbxvinfo.c b/xcb-demo/xcbxvinfo.c
index 0cd638e..495af78 100644
--- a/xcb-demo/xcbxvinfo.c
+++ b/xcb-demo/xcbxvinfo.c
@@ -22,20 +22,33 @@ XCBSCREEN *ScreenOfDisplay (XCBConnection *c, int screen)
static int nstrcmp(char *b, int n, char *s) {
while (n > 0) {
- if (*s == '\0')
- return 1;
- if (*b - *s != 0)
- return *b - *s;
- b++, s++, --n;
+ if (*s == '\0')
+ return 1;
+ if (*b - *s != 0)
+ return *b - *s;
+ b++, s++, --n;
}
return -(*s != '\0');
}
+/*
+ * Copies a string s of size n and returns it with a NULL appended.
+ * String returned is allocated with malloc and should be freed later.
+ */
+static char *ExtractString(char *s, int n) {
+ char *str;
+ str = (char *)malloc(sizeof(char) * (n+1));
+ strncpy(str, s, n);
+ str[n] = '\0';
+ return str;
+}
+
int main(int argc, char *argv[])
{
XCBConnection *c;
int scrn;
char *display_name = NULL;
+ char *name = NULL;
XCBWINDOW root_window = {0};
XCBSCREEN *screen;
XCBXvQueryExtensionRep *query_ext;
@@ -97,10 +110,12 @@ int main(int argc, char *argv[])
for (j = 0; j < adaptors_rep->num_adaptors; j++)
{
ainfo = adaptors_iter.data;
- fprintf(stdout, " Adaptor #%i: \"%s\"\n", j, XCBXvAdaptorInfoName(ainfo));
+ name = ExtractString(XCBXvAdaptorInfoName(ainfo), XCBXvAdaptorInfoNameLength(ainfo));
+ fprintf(stdout, " Adaptor #%i: \"%s\"\n", j, name);
fprintf(stdout, " number of ports: %i\n", ainfo->num_ports);
fprintf(stdout, " port base: %li\n", ainfo->base_id.xid);
fprintf(stdout, " operations supported: ");
+ free(name);
switch(ainfo->type & (XCBXvTypeInputMask | XCBXvTypeOutputMask)) {
case XCBXvTypeInputMask:
@@ -129,7 +144,7 @@ int main(int argc, char *argv[])
for (k=0; k < ainfo->num_formats; k++, format++)
fprintf(stdout, " depth %i, visualID 0x%2lx\n",
format->depth, format->visual.id);
-
+
attr_rep = XCBXvQueryPortAttributesReply(c,
XCBXvQueryPortAttributes(c, ainfo->base_id), NULL);
nattr = attr_rep->num_attributes;
@@ -153,7 +168,7 @@ int main(int argc, char *argv[])
XCBInternAtomRep *atom_rep;
fprintf(stdout, " client gettable attribute");
-
+
atom_rep = XCBInternAtomReply(c,
XCBInternAtom(c,
1,
@@ -162,12 +177,12 @@ int main(int argc, char *argv[])
XCBXvAttributeInfoName(attribute)),
NULL);
the_atom = atom_rep->atom;
-
+
if (the_atom.xid != 0) {
XCBXvGetPortAttributeRep *pattr_rep =
XCBXvGetPortAttributeReply(c,
- XCBXvGetPortAttribute(c, ainfo->base_id, the_atom),
- NULL);
+ XCBXvGetPortAttribute(c, ainfo->base_id, the_atom),
+ NULL);
if (pattr_rep) fprintf(stdout, " (current value is %li)", pattr_rep->value);
free(pattr_rep);
}
@@ -187,16 +202,16 @@ int main(int argc, char *argv[])
XCBXvEncodingInfoIter encoding_iter = XCBXvQueryEncodingsInfoIter(qencodings_rep);
XCBXvEncodingInfo *encoding;
+ int ImageEncodings = 0;
if (nencode) {
- int ImageEncodings = 0;
int n;
for (n = 0; n < nencode; n++) {
encoding = encoding_iter.data;
- if (!nstrcmp(XCBXvEncodingInfoName(encoding),
- XCBXvEncodingInfoNameLength(encoding),
- "XV_IMAGE"))
+ name = ExtractString(XCBXvEncodingInfoName(encoding), XCBXvEncodingInfoNameLength(encoding));
+ if (!nstrcmp(name, strlen(name), "XV_IMAGE"))
ImageEncodings++;
XCBXvEncodingInfoNext(&encoding_iter);
+ free(name);
}
if(nencode - ImageEncodings) {
@@ -206,124 +221,119 @@ int main(int argc, char *argv[])
encoding_iter = XCBXvQueryEncodingsInfoIter(qencodings_rep);
for(n = 0; n < nencode; n++) {
encoding = encoding_iter.data;
- if(nstrcmp(XCBXvEncodingInfoName(encoding),
- XCBXvEncodingInfoNameLength(encoding),
- "XV_IMAGE")) {
- if (j == adaptors_rep->num_adaptors - 1) {
- printf("hi\n");
- }
+ name = ExtractString(XCBXvEncodingInfoName(encoding), XCBXvEncodingInfoNameLength(encoding));
+ if(nstrcmp(name, strlen(name), "XV_IMAGE")) {
fprintf(stdout,
- " encoding ID #%li: \"%*s\"\n",
+ " encoding ID #%li: \"%*s\"\n",
encoding->encoding.xid,
- XCBXvEncodingInfoNameLength(encoding),
- XCBXvEncodingInfoName(encoding));
+ strlen(name),
+ name);
fprintf(stdout, " size: %i x %i\n",
encoding->width,
encoding->height);
fprintf(stdout, " rate: %f\n",
(float)encoding->rate.numerator/
(float)encoding->rate.denominator);
+ free(name);
}
XCBXvEncodingInfoNext(&encoding_iter);
}
+ }
- if(ImageEncodings && (ainfo->type & XCBXvTypeImageMask)) {
- char imageName[5] = {0, 0, 0, 0, 0};
- encoding_iter = XCBXvQueryEncodingsInfoIter(qencodings_rep);
- for(n = 0; n < nencode; n++) {
- encoding = encoding_iter.data;
- if(!nstrcmp(XCBXvEncodingInfoName(encoding),
- XCBXvEncodingInfoNameLength(encoding),
- "XV_IMAGE")) {
- fprintf(stdout,
- " maximum XvImage size: %i x %i\n",
- encoding->width, encoding->height);
- break;
- }
+ if(ImageEncodings && (ainfo->type & XCBXvTypeImageMask)) {
+ char imageName[5] = {0, 0, 0, 0, 0};
+ encoding_iter = XCBXvQueryEncodingsInfoIter(qencodings_rep);
+ for(n = 0; n < nencode; n++) {
+ encoding = encoding_iter.data;
+ name = ExtractString(XCBXvEncodingInfoName(encoding), XCBXvEncodingInfoNameLength(encoding));
+ if(!nstrcmp(name, strlen(name), "XV_IMAGE")) {
+ fprintf(stdout,
+ " maximum XvImage size: %i x %i\n",
+ encoding->width, encoding->height);
+ break;
}
- XCBXvListImageFormatsRep *formats_rep;
- formats_rep = XCBXvListImageFormatsReply(c,
- XCBXvListImageFormats(c, ainfo->base_id),
- NULL);
+ free(name);
+ }
+ XCBXvListImageFormatsRep *formats_rep;
+ formats_rep = XCBXvListImageFormatsReply(c,
+ XCBXvListImageFormats(c, ainfo->base_id),
+ NULL);
+
+ int numImages = formats_rep->num_formats;
+ XCBXvImageFormatInfo *format;
+ XCBXvImageFormatInfoIter formats_iter = XCBXvListImageFormatsFormatIter(formats_rep);
+ fprintf(stdout, " Number of image formats: %i\n",
+ numImages);
+
+ for(n = 0; n < numImages; n++) {
+ format = formats_iter.data;
+ memcpy(imageName, &(format->id), 4);
+ fprintf(stdout, " id: 0x%lx", format->id);
+ if(isprint(imageName[0]) && isprint(imageName[1]) &&
+ isprint(imageName[2]) && isprint(imageName[3]))
+ {
+ fprintf(stdout, " (%s)\n", imageName);
+ } else {
+ fprintf(stdout, "\n");
+ }
+ fprintf(stdout, " guid: ");
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[0]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[1]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[2]);
+ fprintf(stdout, "%02x-", (unsigned char)
+ format->guid[3]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[4]);
+ fprintf(stdout, "%02x-", (unsigned char)
+ format->guid[5]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[6]);
+ fprintf(stdout, "%02x-", (unsigned char)
+ format->guid[7]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[8]);
+ fprintf(stdout, "%02x-", (unsigned char)
+ format->guid[9]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[10]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[11]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[12]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[13]);
+ fprintf(stdout, "%02x", (unsigned char)
+ format->guid[14]);
+ fprintf(stdout, "%02x\n", (unsigned char)
+ format->guid[15]);
+
+ fprintf(stdout, " bits per pixel: %i\n",
+ format->bpp);
+ fprintf(stdout, " number of planes: %i\n",
+ format->num_planes);
+ fprintf(stdout, " type: %s (%s)\n",
+ (format->type == XCBXvImageFormatInfoTypeRGB) ? "RGB" : "YUV",
+ (format->format == XCBXvImageFormatInfoFormatPacked) ? "packed" : "planar");
+
+ if(format->type == XCBXvImageFormatInfoTypeRGB) {
+ fprintf(stdout, " depth: %i\n",
+ format->depth);
+
+ fprintf(stdout, " red, green, blue masks: "
+ "0x%lx, 0x%lx, 0x%lx\n",
+ format->red_mask,
+ format->green_mask,
+ format->blue_mask);
+ } else {
- int numImages = formats_rep->num_formats;
- XCBXvImageFormatInfo *format;
- XCBXvImageFormatInfoIter formats_iter = XCBXvListImageFormatsFormatIter(formats_rep);
- fprintf(stdout, " Number of image formats: %i\n",
- numImages);
-
- for(n = 0; n < numImages; n++) {
- format = formats_iter.data;
- memcpy(imageName, &(format->id), 4);
- fprintf(stdout, " id: 0x%lx", format->id);
- if(isprint(imageName[0]) && isprint(imageName[1]) &&
- isprint(imageName[2]) && isprint(imageName[3]))
- {
- fprintf(stdout, " (%s)\n", imageName);
- } else {
- fprintf(stdout, "\n");
- }
- fprintf(stdout, " guid: ");
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[0]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[1]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[2]);
- fprintf(stdout, "%02x-", (unsigned char)
- format->guid[3]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[4]);
- fprintf(stdout, "%02x-", (unsigned char)
- format->guid[5]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[6]);
- fprintf(stdout, "%02x-", (unsigned char)
- format->guid[7]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[8]);
- fprintf(stdout, "%02x-", (unsigned char)
- format->guid[9]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[10]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[11]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[12]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[13]);
- fprintf(stdout, "%02x", (unsigned char)
- format->guid[14]);
- fprintf(stdout, "%02x\n", (unsigned char)
- format->guid[15]);
-
- fprintf(stdout, " bits per pixel: %i\n",
- format->bpp);
- fprintf(stdout, " number of planes: %i\n",
- format->num_planes);
- fprintf(stdout, " type: %s (%s)\n",
- (format->type == XCBXvImageFormatInfoTypeRGB) ? "RGB" : "YUV",
- (format->format == XCBXvImageFormatInfoFormatPacked) ? "packed" : "planar");
-
- if(format->type == XCBXvImageFormatInfoTypeRGB) {
- fprintf(stdout, " depth: %i\n",
- format->depth);
-
- fprintf(stdout, " red, green, blue masks: "
- "0x%lx, 0x%lx, 0x%lx\n",
- format->red_mask,
- format->green_mask,
- format->blue_mask);
- } else {
-
- }
- XCBXvImageFormatInfoNext(&formats_iter);
}
- free(formats_rep);
+ XCBXvImageFormatInfoNext(&formats_iter);
}
-
+ free(formats_rep);
}
-
}
free(qencodings_rep);
XCBXvAdaptorInfoNext(&adaptors_iter);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 21:17:20 +0000