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167
168<div class="main">
169
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]170<p class="navigation-index">[<a href="#AcquireAlignedMemory">AcquireAlignedMemory</a> &bull; <a href="#AcquireMagickMemory">AcquireMagickMemory</a> &bull; <a href="#AcquireQuantumMemory">AcquireQuantumMemory</a> &bull; <a href="#CopyMagickMemory">CopyMagickMemory</a> &bull; <a href="#GetMagickMemoryMethods">GetMagickMemoryMethods</a> &bull; <a href="#RelinquishAlignedMemory">RelinquishAlignedMemory</a> &bull; <a href="#RelinquishMagickMemory">RelinquishMagickMemory</a> &bull; <a href="#ResetMagickMemory">ResetMagickMemory</a> &bull; <a href="#ResizeMagickMemory">ResizeMagickMemory</a> &bull; <a href="#ResizeQuantumMemory">ResizeQuantumMemory</a> &bull; <a href="#SetMagickMemoryMethods">SetMagickMemoryMethods</a>]</p>
171
172<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
173_8c.html" target="source" name="AcquireAlignedMemory">AcquireAlignedMemory</a></h2>
174<div class="doc-section">
175
176<p>AcquireAlignedMemory() returns a pointer to a block of memory at least size bytes whose address is a multiple of 16*sizeof(void *).</p></ol>
177
178<p>The format of the AcquireAlignedMemory method is:</p>
179
180<pre class="code">
181 void *AcquireAlignedMemory(const size_t count,const size_t quantum)
182</pre>
183
184<p>A description of each parameter follows:</p></ol>
185
186<h5>count</h5>
187<ol><p>the number of quantum elements to allocate.</p></ol>
188
189<h5>quantum</h5>
190<ol><p>the number of bytes in each quantum.</p></ol>
191
192 </div>
193<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
194_8c.html" target="source" name="AcquireMagickMemory">AcquireMagickMemory</a></h2>
195<div class="doc-section">
196
197<p>AcquireMagickMemory() returns a pointer to a block of memory at least size bytes suitably aligned for any use.</p></ol>
198
199<p>The format of the AcquireMagickMemory method is:</p>
200
201<pre class="code">
202 void *AcquireMagickMemory(const size_t size)
203</pre>
204
205<p>A description of each parameter follows:</p></ol>
206
207<h5>size</h5>
208<ol><p>the size of the memory in bytes to allocate.</p></ol>
209
210 </div>
211<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
212_8c.html" target="source" name="AcquireQuantumMemory">AcquireQuantumMemory</a></h2>
213<div class="doc-section">
214
215<p>AcquireQuantumMemory() returns a pointer to a block of memory at least count * quantum bytes suitably aligned for any use.</p></ol>
216
217<p>The format of the AcquireQuantumMemory method is:</p>
218
219<pre class="code">
220 void *AcquireQuantumMemory(const size_t count,const size_t quantum)
221</pre>
222
223<p>A description of each parameter follows:</p></ol>
224
225<h5>count</h5>
226<ol><p>the number of quantum elements to allocate.</p></ol>
227
228<h5>quantum</h5>
229<ol><p>the number of bytes in each quantum.</p></ol>
230
231 </div>
232<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
233_8c.html" target="source" name="CopyMagickMemory">CopyMagickMemory</a></h2>
234<div class="doc-section">
235
236<p>CopyMagickMemory() copies size bytes from memory area source to the destination. Copying between objects that overlap will take place correctly. It returns destination.</p></ol>
237
238<p>The format of the CopyMagickMemory method is:</p>
239
240<pre class="code">
241 void *CopyMagickMemory(void *destination,const void *source,
242 const size_t size)
243</pre>
244
245<p>A description of each parameter follows:</p></ol>
246
247<h5>destination</h5>
248<ol><p>the destination.</p></ol>
249
250<h5>source</h5>
251<ol><p>the source.</p></ol>
252
253<h5>size</h5>
254<ol><p>the size of the memory in bytes to allocate.</p></ol>
255
256 </div>
257<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
258_8c.html" target="source" name="GetMagickMemoryMethods">GetMagickMemoryMethods</a></h2>
259<div class="doc-section">
260
261<p>GetMagickMemoryMethods() gets the methods to acquire, resize, and destroy memory.</p></ol>
262
263<p>The format of the GetMagickMemoryMethods() method is:</p>
264
265<pre class="code">
266 void GetMagickMemoryMethods(AcquireMemoryHandler *acquire_memory_handler,
267 ResizeMemoryHandler *resize_memory_handler,
268 DestroyMemoryHandler *destroy_memory_handler)
269</pre>
270
271<p>A description of each parameter follows:</p></ol>
272
273<h5>acquire_memory_handler</h5>
274<ol><p>method to acquire memory (e.g. malloc).</p></ol>
275
276<h5>resize_memory_handler</h5>
277<ol><p>method to resize memory (e.g. realloc).</p></ol>
278
279<h5>destroy_memory_handler</h5>
280<ol><p>method to destroy memory (e.g. free).</p></ol>
281
282 </div>
283<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
284_8c.html" target="source" name="RelinquishAlignedMemory">RelinquishAlignedMemory</a></h2>
285<div class="doc-section">
286
287<p>RelinquishAlignedMemory() frees memory acquired with AcquireAlignedMemory() or reuse.</p></ol>
288
289<p>The format of the RelinquishAlignedMemory method is:</p>
290
291<pre class="code">
292 void *RelinquishAlignedMemory(void *memory)
293</pre>
294
295<p>A description of each parameter follows:</p></ol>
296
297<h5>memory</h5>
298<ol><p>A pointer to a block of memory to free for reuse.</p></ol>
299
300 </div>
301<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
302_8c.html" target="source" name="RelinquishMagickMemory">RelinquishMagickMemory</a></h2>
303<div class="doc-section">
304
305<p>RelinquishMagickMemory() frees memory acquired with AcquireMagickMemory() or AcquireQuantumMemory() for reuse.</p></ol>
306
307<p>The format of the RelinquishMagickMemory method is:</p>
308
309<pre class="code">
310 void *RelinquishMagickMemory(void *memory)
311</pre>
312
313<p>A description of each parameter follows:</p></ol>
314
315<h5>memory</h5>
316<ol><p>A pointer to a block of memory to free for reuse.</p></ol>
317
318 </div>
319<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
320_8c.html" target="source" name="ResetMagickMemory">ResetMagickMemory</a></h2>
321<div class="doc-section">
322
323<p>ResetMagickMemory() fills the first size bytes of the memory area pointed to by memory with the constant byte c.</p></ol>
324
325<p>The format of the ResetMagickMemory method is:</p>
326
327<pre class="code">
328 void *ResetMagickMemory(void *memory,int byte,const size_t size)
329</pre>
330
331<p>A description of each parameter follows:</p></ol>
332
333<h5>memory</h5>
334<ol><p>A pointer to a memory allocation.</p></ol>
335
336<h5>byte</h5>
337<ol><p>Set the memory to this value.</p></ol>
338
339<h5>size</h5>
340<ol><p>Size of the memory to reset.</p></ol>
341
342 </div>
343<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
344_8c.html" target="source" name="ResizeMagickMemory">ResizeMagickMemory</a></h2>
345<div class="doc-section">
346
347<p>ResizeMagickMemory() changes the size of the memory and returns a pointer to the (possibly moved) block. The contents will be unchanged up to the lesser of the new and old sizes.</p></ol>
348
349<p>The format of the ResizeMagickMemory method is:</p>
350
351<pre class="code">
352 void *ResizeMagickMemory(void *memory,const size_t size)
353</pre>
354
355<p>A description of each parameter follows:</p></ol>
356
357<h5>memory</h5>
358<ol><p>A pointer to a memory allocation.</p></ol>
359
360<h5>size</h5>
361<ol><p>the new size of the allocated memory.</p></ol>
362
363 </div>
364<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
365_8c.html" target="source" name="ResizeQuantumMemory">ResizeQuantumMemory</a></h2>
366<div class="doc-section">
367
368<p>ResizeQuantumMemory() changes the size of the memory and returns a pointer to the (possibly moved) block. The contents will be unchanged up to the lesser of the new and old sizes.</p></ol>
369
370<p>The format of the ResizeQuantumMemory method is:</p>
371
372<pre class="code">
373 void *ResizeQuantumMemory(void *memory,const size_t count,
374 const size_t quantum)
375</pre>
376
377<p>A description of each parameter follows:</p></ol>
378
379<h5>memory</h5>
380<ol><p>A pointer to a memory allocation.</p></ol>
381
382<h5>count</h5>
383<ol><p>the number of quantum elements to allocate.</p></ol>
384
385<h5>quantum</h5>
386<ol><p>the number of bytes in each quantum.</p></ol>
387
388 </div>
389<h2><a href="http://www.imagemagick.org/api/MagickCore/memory
390_8c.html" target="source" name="SetMagickMemoryMethods">SetMagickMemoryMethods</a></h2>
391<div class="doc-section">
392
393<p>SetMagickMemoryMethods() sets the methods to acquire, resize, and destroy memory.</p></ol>
394
395<p>The format of the SetMagickMemoryMethods() method is:</p>
396
397<pre class="code">
398 SetMagickMemoryMethods(AcquireMemoryHandler acquire_memory_handler,
399 ResizeMemoryHandler resize_memory_handler,
400 DestroyMemoryHandler destroy_memory_handler)
401</pre>
402
403<p>A description of each parameter follows:</p></ol>
404
405<h5>acquire_memory_handler</h5>
406<ol><p>method to acquire memory (e.g. malloc).</p></ol>
407
408<h5>resize_memory_handler</h5>
409<ol><p>method to resize memory (e.g. realloc).</p></ol>
410
411<h5>destroy_memory_handler</h5>
412<ol><p>method to destroy memory (e.g. free).</p></ol>
413
414 </div>
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