mirror of https://github.com/python/cpython
New built-in module "cl" (Compression Library). Only for Irix 4.0.5
and higher. Made a few improvements to previous version.
This commit is contained in:
Sjoerd Mullender
parent
2b65c03603
commit
d53a4f3d14
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@ -25,6 +25,7 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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/* Cl objects */
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#include <stdarg.h>
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#include <cl.h>
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#include "allobjects.h"
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#include "modsupport.h" /* For getargs() etc. */
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@ -44,13 +45,30 @@ extern typeobject Cltype; /* Really static, forward */
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#define is_clobject(v) ((v)->ob_type == &Cltype)
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static object *ClError; /* exception cl.error */
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static int error_handler_called = 0;
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static void
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cl_ErrorHandler(long errnum, const char *fmt, ...)
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{
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va_list ap;
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char errbuf[BUFSIZ]; /* hopefully big enough */
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error_handler_called = 1;
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va_start(ap, fmt);
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vsprintf(errbuf, fmt, ap);
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va_end(ap);
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err_setstr(ClError, errbuf);
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}
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static object *
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cl_Compress(self, args)
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clobject *self;
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object *args;
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{
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object *data, *res;
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long frameIndex, numberOfFrames, dataSize, result;
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object *data;
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long frameIndex, numberOfFrames, dataSize;
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if (!getargs(args, "(ii)", &frameIndex, &numberOfFrames))
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return NULL;
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@ -62,16 +80,20 @@ cl_Compress(self, args)
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dataSize = numberOfFrames * self->ob_dataMaxSize;
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result = clCompress(self->ob_compressorHdl, frameIndex, numberOfFrames,
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&dataSize, (void *) getstringvalue(data));
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error_handler_called = 0;
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if (clCompress(self->ob_compressorHdl, frameIndex, numberOfFrames,
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&dataSize, (void *) getstringvalue(data)) == FAILURE) {
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DECREF(data);
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if (!error_handler_called)
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err_setstr(ClError, "compress failed");
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return NULL;
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}
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if (dataSize < numberOfFrames * self->ob_dataMaxSize)
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if (resizestring(&data, dataSize))
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return NULL;
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res = mkvalue("(iO)", result, data);
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DECREF(data);
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return res;
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return data;
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}
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static object *
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@ -79,8 +101,8 @@ cl_Decompress(self, args)
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clobject *self;
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object *args;
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{
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object *data, *res;
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long frameIndex, numberOfFrames, result;
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object *data;
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long frameIndex, numberOfFrames;
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if (!getargs(args, "(ii)", &frameIndex, &numberOfFrames))
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return NULL;
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@ -90,12 +112,16 @@ cl_Decompress(self, args)
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if (data == NULL)
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return NULL;
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result = clDecompress(self->ob_compressorHdl, frameIndex,
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numberOfFrames, (void *) getstringvalue(data));
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error_handler_called = 0;
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if (clDecompress(self->ob_compressorHdl, frameIndex, numberOfFrames,
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(void *) getstringvalue(data)) == FAILURE) {
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DECREF(data);
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if (!error_handler_called)
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err_setstr(ClError, "decompress failed");
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return NULL;
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}
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res = mkvalue("(iO)", result, data);
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DECREF(data);
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return res;
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return data;
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}
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static object *
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@ -110,13 +136,14 @@ cl_GetCompressorInfo(self, args)
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if (!getnoarg(args))
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return NULL;
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result = clGetCompressorInfo(self->ob_compressorHdl, &infoSize, &info);
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error_handler_called = 0;
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if (clGetCompressorInfo(self->ob_compressorHdl, &infoSize, &info) == FAILURE) {
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if (!error_handler_called)
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err_setstr(ClError, "getcompressorinfo failed");
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return NULL;
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}
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infoObject = newsizedstringobject((char *) info, infoSize);
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res = mkvalue("(iO)", result, infoObject);
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DECREF(infoObject);
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return res;
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return newsizedstringobject((char *) info, infoSize);
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}
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static object *
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@ -129,7 +156,10 @@ cl_GetDefault(self, args)
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if (!getargs(args, "i", &initial))
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return NULL;
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error_handler_called = 0;
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result = clGetDefault(self->ob_compressorHdl, initial);
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if (error_handler_called)
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return NULL;
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return newintobject(result);
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}
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@ -144,7 +174,10 @@ cl_GetMinMax(self, args)
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if (!getargs(args, "i", ¶m))
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return NULL;
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error_handler_called = 0;
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clGetMinMax(self->ob_compressorHdl, param, &min, &max);
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if (error_handler_called)
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return NULL;
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return mkvalue("(ii)", min, max);
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}
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@ -160,7 +193,14 @@ cl_GetName(self, args)
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if (!getargs(args, "i", &descriptor))
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return NULL;
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error_handler_called = 0;
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name = clGetName(self->ob_compressorHdl, descriptor);
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if (error_handler_called)
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return NULL;
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if (name == NULL) {
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err_setstr(ClError, "getname failed");
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return NULL;
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}
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return newstringobject(name);
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}
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@ -197,7 +237,10 @@ doParams(self, args, func, modified)
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PVbuffer[i] = getintvalue(v);
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}
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error_handler_called = 0;
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(*func)(self->ob_compressorHdl, PVbuffer, length);
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if (error_handler_called)
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return NULL;
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if (modified) {
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for (i = 0; i < length; i++)
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@ -237,7 +280,10 @@ cl_QueryParams(self, args)
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if (!getnoarg(args))
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return NULL;
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error_handler_called = 0;
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bufferlength = clQueryParams(self->ob_compressorHdl, 0, 0);
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if (error_handler_called)
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return NULL;
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PVbuffer = NEW(long, bufferlength);
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if (PVbuffer == NULL)
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@ -245,6 +291,10 @@ cl_QueryParams(self, args)
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bufferlength = clQueryParams(self->ob_compressorHdl, PVbuffer,
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bufferlength);
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if (error_handler_called) {
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DEL(PVbuffer);
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return NULL;
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}
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list = newlistobject(bufferlength);
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if (list == NULL) {
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@ -252,8 +302,12 @@ cl_QueryParams(self, args)
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return NULL;
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}
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for (i = 0; i < bufferlength; i++)
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setlistitem(list, i, newintobject(PVbuffer[i]));
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for (i = 0; i < bufferlength; i++) {
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if (i & 1)
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setlistitem(list, i, newintobject(PVbuffer[i]));
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else
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setlistitem(list, i, newstringobject((char *) PVbuffer[i]));
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}
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DEL(PVbuffer);
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@ -424,8 +478,6 @@ cl_OpenCompressor(self, args)
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object *GetFrameCBPtr;
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object *callbackID;
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clobject *new;
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long result;
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object *res;
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if (!getargs(args, "((iiiiiiiiii)iOO)",
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&compressionFormat.width,
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@ -445,8 +497,19 @@ cl_OpenCompressor(self, args)
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if (new == 0)
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return NULL;
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result = clOpenCompressor(&compressionFormat, qualityFactor, GetFrame,
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(void *) new, &new->ob_compressorHdl);
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new->ob_compressorHdl = NULL;
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new->ob_callbackFunc = NULL;
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new->ob_callbackID = NULL;
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new->ob_data = NULL;
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error_handler_called = 0;
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if (clOpenCompressor(&compressionFormat, qualityFactor, GetFrame,
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(void *) new, &new->ob_compressorHdl) == FAILURE) {
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DECREF(new);
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if (!error_handler_called)
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err_setstr(ClError, "opencompressor failed");
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return NULL;
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}
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new->ob_isCompressor = 1;
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new->ob_callbackFunc = GetFrameCBPtr;
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@ -458,9 +521,7 @@ cl_OpenCompressor(self, args)
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new->ob_data = NULL;
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new->ob_dataMaxSize = compressionFormat.dataMaxSize;
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res = mkvalue("(iO)", result, new);
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DECREF(new);
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return res;
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return new;
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}
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static object *
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@ -473,7 +534,6 @@ cl_OpenDecompressor(self, args)
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object *GetDataCBPtr;
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object *callbackID;
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clobject *new;
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long result;
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object *res;
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if (!getargs(args, "(s#OO)", &info, &infoSize, &GetDataCBPtr,
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@ -484,9 +544,19 @@ cl_OpenDecompressor(self, args)
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if (new == 0)
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return NULL;
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result = clOpenDecompressor(&compressionFormat, infoSize, info,
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GetData, (void *) new,
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&new->ob_compressorHdl);
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new->ob_compressorHdl = NULL;
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new->ob_callbackFunc = NULL;
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new->ob_callbackID = NULL;
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new->ob_data = NULL;
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error_handler_called = 0;
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if (clOpenDecompressor(&compressionFormat, infoSize, info, GetData,
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(void *) new, &new->ob_compressorHdl) == FAILURE) {
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DECREF(new);
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if (!error_handler_called)
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err_setstr(ClError, "opendecompressor failed");
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return NULL;
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}
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new->ob_isCompressor = 0;
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new->ob_callbackFunc = GetDataCBPtr;
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@ -497,7 +567,7 @@ cl_OpenDecompressor(self, args)
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XINCREF(new->ob_callbackID);
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new->ob_data = NULL;
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res = mkvalue("(iO(iiiiiiiiii))", result, new,
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res = mkvalue("(O(iiiiiiiiii))", new,
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compressionFormat.width,
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compressionFormat.height,
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compressionFormat.frameSize,
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@ -508,10 +578,6 @@ cl_OpenDecompressor(self, args)
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compressionFormat.frameRate,
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compressionFormat.numberOfFrames,
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compressionFormat.compressionScheme);
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if (res == NULL) {
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XDECREF(new->ob_callbackFunc);
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XDECREF(new->ob_callbackID);
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}
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DECREF(new);
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return res;
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@ -522,14 +588,19 @@ cl_AddParam(self, args)
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object *self, *args;
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{
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char *name;
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long type, min, max, initial, paramID, result;
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long type, min, max, initial, paramID;
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if (!getargs(args, "(siiii)", &name, &type, &min, &max, &initial))
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return NULL;
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result = clAddParam(name, type, min, max, initial, ¶mID);
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error_handler_called = 0;
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if (clAddParam(name, type, min, max, initial, ¶mID) == FAILURE) {
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if (!error_handler_called)
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err_setstr(ClError, "addparam failed");
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return NULL;
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}
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return mkvalue("(ii)", result, paramID);
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return newintobject(paramID);
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}
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static struct methodlist cl_methods[] = {
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@ -542,5 +613,14 @@ static struct methodlist cl_methods[] = {
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void
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initcl()
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{
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(void) initmodule("cl", cl_methods);
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object *m, *d;
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m = initmodule("cl", cl_methods);
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d = getmoduledict(m);
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ClError = newstringobject("cl.error");
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if (ClError == NULL || dictinsert(d, "error", ClError) != 0)
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fatal("can't define cl.error");
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(void) clSetErrorHandler(cl_ErrorHandler);
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}
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@ -214,6 +214,9 @@ extern void initthread();
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#ifdef USE_SV
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extern void initsv();
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#endif
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#ifdef USE_CL
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extern void initcl();
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#endif
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#ifdef USE_TIME
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extern void inittime();
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#endif
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@ -335,6 +338,10 @@ struct {
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{"sv", initsv},
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#endif
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#ifdef USE_CL
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{"cl", initcl},
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#endif
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#ifdef USE_THREAD
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{"thread", initthread},
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#endif
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