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[ps] Add comments about design of output.

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Add some snippets from Adrian Johnson about how and why the PS output is
factored in terms of PDF operators.
This commit is contained in:
Chris Wilson 2008-09-07 10:23:28 +01:00
parent ddb529a59c
commit ab3bb369d5
1 changed files with 13 additions and 0 deletions
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13
src/cairo-ps-surface.c
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@ -40,6 +40,19 @@
* Adrian Johnson <ajohnson@redneon.com>
*/
/*
* Design of the PS output:
*
* The PS output is harmonised with the PDF operations using PS procedures
* to emulate the PDF operators.
*
* This has a number of advantages:
* 1. A large chunk of code is shared between the PDF and PS backends.
* See cairo-pdf-operators.
* 2. Using gs to do PS -> PDF and PDF -> PS will always work well.
*/
#define _BSD_SOURCE /* for ctime_r(), snprintf(), strdup() */
#include "cairoint.h"
#include "cairo-ps.h"