GRASS Programmer's Manual  6.5.svn(2014)-r66266
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pngdriver/Driver.c
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1 
2 /****************************************************************************
3  *
4  * MODULE: PNG driver
5  * AUTHOR(S): Glynn Clements <glynn@gclements.plus.com>
6  * COPYRIGHT: (C) 2007 Glynn Clements
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  *****************************************************************************/
19 
20 #include "pngdriver.h"
21 
22 const struct driver *PNG_Driver(void)
23 {
24  static struct driver drv;
25  static int initialized;
26 
27  if (initialized)
28  return &drv;
29 
30  drv.Box_abs = PNG_Box_abs;
31  drv.Box_rel = NULL;
32  drv.Client_Open = NULL;
33  drv.Client_Close = PNG_Client_Close;
34  drv.Erase = PNG_Erase;
35  drv.Get_with_box = NULL;
36  drv.Get_with_line = NULL;
37  drv.Get_with_pointer = NULL;
38  drv.Graph_set = PNG_Graph_set;
39  drv.Graph_close = PNG_Graph_close;
40  drv.Line_width = PNG_Line_width;
41  drv.Panel_save = NULL;
42  drv.Panel_restore = NULL;
43  drv.Panel_delete = NULL;
44  drv.Polydots_abs = NULL;
45  drv.Polydots_rel = NULL;
46  drv.Polyline_abs = NULL;
47  drv.Polyline_rel = NULL;
48  drv.Polygon_abs = NULL;
49  drv.Polygon_rel = NULL;
50  drv.Set_window = PNG_Set_window;
51  drv.Begin_scaled_raster = PNG_begin_scaled_raster;
52  drv.Scaled_raster = PNG_scaled_raster;
53  drv.End_scaled_raster = NULL;
54  drv.Respond = PNG_Respond;
55  drv.Work_stream = NULL;
56  drv.Do_work = NULL;
57  drv.lookup_color = PNG_lookup_color;
58  drv.color = PNG_color;
59  drv.draw_line = PNG_draw_line;
60  drv.draw_point = PNG_draw_point;
61  drv.draw_bitmap = PNG_draw_bitmap;
62  drv.draw_text = NULL;
63 
64  initialized = 1;
65 
66  return &drv;
67 }
PNG_draw_bitmap
void PNG_draw_bitmap(int ncols, int nrows, int threshold, const unsigned char *buf)
Definition: pngdriver/Draw_bitmap.c:20
PNG_Client_Close
void PNG_Client_Close(void)
Definition: pngdriver/Client.c:4
driver::Erase
void(* Erase)(void)
Definition: driver.h:31
driver::draw_line
void(* draw_line)(int, int, int, int)
Definition: driver.h:60
PNG_Graph_close
void PNG_Graph_close(void)
Definition: pngdriver/Graph_close.c:32
driver::Get_with_box
int(* Get_with_box)(int, int, int *, int *, int *)
Definition: driver.h:32
driver::Work_stream
int(* Work_stream)(void)
Definition: driver.h:55
PNG_color
void PNG_color(int number)
Definition: pngdriver/Color.c:12
driver::Client_Open
void(* Client_Open)(void)
Definition: driver.h:29
driver::Do_work
void(* Do_work)(int)
Definition: driver.h:56
driver::Respond
void(* Respond)(void)
Definition: driver.h:54
driver::Box_abs
void(* Box_abs)(int, int, int, int)
Definition: driver.h:27
driver::Get_with_line
int(* Get_with_line)(int, int, int *, int *, int *)
Definition: driver.h:33
driver::draw_text
void(* draw_text)(const char *)
Definition: driver.h:63
driver::Box_rel
void(* Box_rel)(int, int)
Definition: driver.h:28
driver::draw_bitmap
void(* draw_bitmap)(int, int, int, const unsigned char *)
Definition: driver.h:62
PNG_Line_width
void PNG_Line_width(int width)
Definition: pngdriver/Line_width.c:5
driver::Line_width
void(* Line_width)(int)
Definition: driver.h:37
driver::Polygon_abs
void(* Polygon_abs)(const int *, const int *, int)
Definition: driver.h:45
PNG_Set_window
void PNG_Set_window(int, int, int, int)
Definition: pngdriver/Set_window.c:22
driver::Panel_delete
void(* Panel_delete)(const char *)
Definition: driver.h:40
driver::Polyline_rel
void(* Polyline_rel)(const int *, const int *, int)
Definition: driver.h:44
driver::Polyline_abs
void(* Polyline_abs)(const int *, const int *, int)
Definition: driver.h:43
PNG_Erase
void PNG_Erase(void)
Definition: pngdriver/Erase.c:3
PNG_Box_abs
void PNG_Box_abs(int x1, int y1, int x2, int y2)
Definition: pngdriver/Box.c:4
PNG_Driver
struct driver * PNG_Driver(void)
Definition: pngdriver/Driver.c:22
PNG_Graph_set
int PNG_Graph_set(int argc, char **argv)
Definition: pngdriver/Graph_set.c:66
driver::Graph_set
int(* Graph_set)(int, char **)
Definition: driver.h:35
driver::Client_Close
void(* Client_Close)(void)
Definition: driver.h:30
driver::color
void(* color)(int)
Definition: driver.h:59
PNG_begin_scaled_raster
void PNG_begin_scaled_raster(int, int[2][2], int[2][2])
Definition: pngdriver/Raster.c:60
PNG_Respond
void PNG_Respond(void)
Definition: pngdriver/Respond.c:4
PNG_draw_line
void PNG_draw_line(int x1, int y1, int x2, int y2)
Definition: pngdriver/Draw_line.c:101
driver::Polygon_rel
void(* Polygon_rel)(const int *, const int *, int)
Definition: driver.h:46
driver::Begin_scaled_raster
void(* Begin_scaled_raster)(int, int[2][2], int[2][2])
Definition: driver.h:48
driver::Get_with_pointer
int(* Get_with_pointer)(int *, int *, int *)
Definition: driver.h:34
PNG_scaled_raster
int PNG_scaled_raster(int, int, const unsigned char *, const unsigned char *, const unsigned char *, const unsigned char *)
Definition: pngdriver/Raster.c:76
driver::End_scaled_raster
void(* End_scaled_raster)(void)
Definition: driver.h:53
NULL
return NULL
Definition: dbfopen.c:1394
driver
Definition: driver.h:25
driver::Scaled_raster
int(* Scaled_raster)(int, int, const unsigned char *, const unsigned char *, const unsigned char *, const unsigned char *)
Definition: driver.h:49
driver::Set_window
void(* Set_window)(int, int, int, int)
Definition: driver.h:47
driver::draw_point
void(* draw_point)(int, int)
Definition: driver.h:61
driver::lookup_color
int(* lookup_color)(int, int, int)
Definition: driver.h:58
PNG_lookup_color
int PNG_lookup_color(int r, int g, int b)
Definition: pngdriver/Color_table.c:130
driver::Panel_restore
void(* Panel_restore)(const char *)
Definition: driver.h:39
driver::Panel_save
void(* Panel_save)(const char *, int, int, int, int)
Definition: driver.h:38
driver::Polydots_rel
void(* Polydots_rel)(const int *, const int *, int)
Definition: driver.h:42
driver::Polydots_abs
void(* Polydots_abs)(const int *, const int *, int)
Definition: driver.h:41
PNG_draw_point
void PNG_draw_point(int x, int y)
Definition: pngdriver/Draw_point.c:3
driver::Graph_close
void(* Graph_close)(void)
Definition: driver.h:36