| Summary: | CAIRO_STATUS_NO_MEMORY after cairo_image_surface_create 10000x30000 image surface | ||
|---|---|---|---|
| Product: | cairo | Reporter: | pink <pinkpink1460> |
| Component: | image backend | Assignee: | Chris Wilson <chris> |
| Status: | RESOLVED NOTABUG | QA Contact: | cairo-bugs mailing list <cairo-bugs> |
| Severity: | normal | ||
| Priority: | medium | CC: | darxus |
| Version: | 1.12.16 | ||
| Hardware: | x86-64 (AMD64) | ||
| OS: | Windows (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
oops, sorry! There is something wrong with my code in the last comment. My explanation is as follows, when I create 10000*20000 image surface, it will be success. But when I create 10000*30000 image surface, the status is CAIRO_STATUS_NO_MEMORY. This sounds like a question to be discussed on the mailing list or IRC channel, not necessarily a bug? What makes your believe that "not enough memory" is wrong? If you do the math, a surface with a width of 10k, height of 30k and 4 bytes per pixels would need more than one gibibyte of memory (10000*30000*4/(1024*1024*1024)=1.118). Could it be that allocating that much memory really fails for you? (In reply to Uli Schlachter from comment #3) > What makes your believe that "not enough memory" is wrong? If you do the > math, a surface with a width of 10k, height of 30k and 4 bytes per pixels > would need more than one gibibyte of memory > (10000*30000*4/(1024*1024*1024)=1.118). Could it be that allocating that > much memory really fails for you? Thanks for your reply. I always thought the limit of width and height of the cairo_image_surface_create() is 32768, it seems and it depend on the bytes per pixels. Thanks again. |
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I want to create a surface with 10000*30000 image surface, and after I call cairo_image_surface_create to do this, the status is CAIRO_STATUS_NO_MEMORY. Is it the width and height restrictions? Thank you very much for your time. Below is my code: image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 10000, 20000); cairo_status_t status = cairo_surface_status (image); if (status) { error(errSyntaxWarning,-1,"cairo Image error: %s\n", cairo_status_to_string(status)); }