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GRASS 8 Programmer's Manual 8.6.0dev(2026)-f6f2c534ea
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GRASS cairo display driver - draw raster. More...

Go to the source code of this file.
Macros | |
| #define | MAX_IMAGE_SIZE 32767 |
Functions | |
| void | Cairo_begin_raster (int mask, int s[2][2], double d[2][2]) |
| Start drawing raster. | |
| int | Cairo_raster (int n, int row, const unsigned char *red, const unsigned char *grn, const unsigned char *blu, const unsigned char *nul) |
| Draw raster row. | |
| void | Cairo_end_raster (void) |
| Finish drawing raster. | |
GRASS cairo display driver - draw raster.
(C) 2007-2014 by Lars Ahlzen and the GRASS Development Team
This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.
Definition in file cairodriver/raster.c.
| #define MAX_IMAGE_SIZE 32767 |
Definition at line 21 of file cairodriver/raster.c.
Start drawing raster.
| mask | non-zero int for mask |
| s | source (map) extent (left, right, top, bottom) |
| d | destination (image) extent (left, right, top, bottom) |
Definition at line 71 of file cairodriver/raster.c.
References _, ca, G_debug(), G_fatal_error(), G_malloc, and MAX_IMAGE_SIZE.
Referenced by Cairo_Driver().
Finish drawing raster.
Definition at line 180 of file cairodriver/raster.c.
References ca, cairo, G_debug(), and G_free().
Referenced by Cairo_Driver().