我试图使用Scheme Script-Fu interface将整数数组传递给GIMP插件。我有一个名为main.c
的源代码文件,其中包含以下内容:
#include <libgimp/gimp.h>
#include <stdlib.h>
#include <stdio.h>
static void query (void);
static void run (
const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals
);
const GimpPlugInInfo PLUG_IN_INFO = {
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN ()
static void query (void)
{
static GimpParamDef args[] = {
{
GIMP_PDB_INT32,
"run-mode",
"The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }"
},
{
GIMP_PDB_INT8ARRAY,
"an array",
""
"an array"
}
};
gimp_install_procedure (
"my-test-plugin",
"My test plug-in",
"Description",
"Jane Doe <jane@doe.name>",
"Copyright (C) Jane Doe\n"
"http://foo.bar",
"2017",
g_strconcat("My test plug-in", "...", NULL),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args),
0,
args,
NULL
);
}
static void run (
const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam value;
value.type = GIMP_PDB_STATUS;
value.data.d_status = GIMP_PDB_SUCCESS;
*nreturn_vals = 1;
*return_vals = &value;
FILE* out = fopen("mylog.log", "w");
fprintf(out, "Parameter #0:\t%d\nParameter #1:\t", param[0].data.d_int32);
for (int i = 0; i < 16; ++i)
fprintf(out, "%d ", param[1].data.d_int8array[i]);
fprintf(out, "\n");
fclose(out);
}
我将文件编译并安装为GIMP插件,如下所示:
sudo apt install libgimp2.0-dev
gcc `gimptool-2.0 --cflags --libs` main.c
gimptool-2.0 --install-bin ./a.out
我在Debian 9盒子上这样做。 当我尝试使用Script-Fu界面运行插件时:
(my-test-plugin 1 #(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16))
使用以下内容创建名为mylog.log
的文件:
Parameter #0: 1
Parameter #1: 1 0 0 0 0 0 0 0 64 201 246 126 174 85 0 0
而以下是预期内容:
Parameter #0: 1
Parameter #1: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
我正在尝试使用the gimp-plugin-morphop
GIMP plugin Scheme Script-Fu interface。当我使用GUI时,插件按预期工作:
但是,当我使用以下Script-Fu脚本时:
(plug-in-morphop RUN-NONINTERACTIVE 1 2 6 7
#(-1 -1 -1 -1 -1 -1 -1
-1 1 -1 -1 -1 1 -1
-1 -1 0 0 0 -1 -1
-1 -1 0 0 0 -1 -1
-1 -1 0 0 0 -1 -1
-1 1 -1 -1 -1 1 -1
-1 -1 -1 -1 -1 -1 -1) 24 2)
插件不会产生预期的结果:
我修改了插件,看看实际差异是什么:
diff --git a/src/morphop-algorithms.c b/src/morphop-algorithms.c
index b927ba3..9dff320 100644
--- a/src/morphop-algorithms.c
+++ b/src/morphop-algorithms.c
@@ -166,7 +166,16 @@ void start_operation(GimpDrawable *drawable, GimpPreview *preview, MorphOpSettin
GimpPixelRgn src_rgn_c, dst_rgn_c;
guchar* src_preview_c = NULL, *dst_preview_c = NULL;
+ FILE* log = fopen("morphop-operation.log", "w");
int i, j;
+ for(i = 0; i < STRELEM_DEFAULT_SIZE; i++) {
+ for(j = 0; j < STRELEM_DEFAULT_SIZE; j++) {
+ fprintf(log, "%d ", settings.element.matrix[i][j]);
+ }
+ fprintf(log, "\n");
+ }
+ fclose(log);
+
// white structuring element
for(i = 0; i < STRELEM_DEFAULT_SIZE; i++) {
for(j = 0; j < STRELEM_DEFAULT_SIZE; j++) {
通过GUI使用模块后,morphop-operation.log
文件包含以下文本:
-1 -1 -1 -1 -1 -1 -1
-1 1 -1 -1 -1 1 -1
-1 -1 0 0 0 -1 -1
-1 -1 0 0 0 -1 -1
-1 -1 0 0 0 -1 -1
-1 1 -1 -1 -1 1 -1
-1 -1 -1 -1 -1 -1 -1
正如所料。运行Script-Fu代码后,morphop-operation.log
文件包含以下文本:
-1 0 0 86 0 103 114
-1 64 0 0 0 45 112
-1 41 64 0 0 105 104
-1 8 42 33 0 110 111
-1 95 8 0 112 45 112
-1 36 95 0 108 109 0
-1 86 36 0 117 111 32
每行最右边的六个整数看起来是随机垃圾,每次调用都会改变。由于settings.element.matrix
已经是接收数组的内部表示,我进一步修改了插件以直接显示接收到的数组:
diff --git a/src/morphop.c b/src/morphop.c
index 3895770..cb814b6 100644
--- a/src/morphop.c
+++ b/src/morphop.c
@@ -150,9 +150,16 @@ static void run (
}
msettings.operator = param[3].data.d_int32;
-
+
+ FILE* log = fopen("morphop-init.log", "w");
int i;
for (i = 0; i < STRELEM_DEFAULT_SIZE * STRELEM_DEFAULT_SIZE; i++) {
+ fprintf(log, "%d ", param[5].data.d_int8array[i]);
+ }
+ fprintf(log, "\n");
+ fclose(log);
+
+ for (i = 0; i < STRELEM_DEFAULT_SIZE * STRELEM_DEFAULT_SIZE; i++) {
msettings.element.matrix[i % STRELEM_DEFAULT_SIZE][(int)ceil((i + 1.0) / STRELEM_DEFAULT_SIZE) - 1] = param[5].data.d_int8array[i];
}
运行Script-Fu代码后,morphop-init.log
文件包含以下文本:
255 255 255 255 255 255 255 0 64 169 248 158 193 85 0 0 64 170 248 158 193 85 0 0 33 0 0 0 0 0 0 0 112 108 117 103 45 105 110 45 109 111 114 112 104 111 112 0 32
超过第八个值的值似乎是随机垃圾,尽管有些值在几次运行中保留其值:
255 255 255 255 255 255 255 0 64 89 10 89 79 86 0 0 64 90 10 89 79 86 0 0 33 0 0 0 0 0 0 0 112 108 117 103 45 105 110 45 109 111 114 112 104 111 112 0 32
255 255 255 255 255 255 255 0 64 217 110 172 167 85 0 0 64 218 110 172 167 85 0 0 33 0 0 0 0 0 0 0 112 108 117 103 45 105 110 45 109 111 114 112 104 111 112 0 32
对我而言,这表示该数组的传递格式与插件所期望的格式不同。如何通过Script-Fu将数组传递到GIMP插件中,以使其保持不变?
答案 0 :(得分:1)
在API中,它是necessary to pass the size of the array before the array。
--- /tmp/plugin.orig 2017-04-02 16:45:34.902108610 +0200
+++ /tmp/plugin.c 2017-04-02 16:43:26.510105281 +0200
@@ -30,6 +30,11 @@
"The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }"
},
{
+ GIMP_PDB_INT32,
+ "array-size",
+ "The array bellow"
+ },
+ {
GIMP_PDB_INT8ARRAY,
"an array",
""
@@ -69,9 +74,9 @@
*return_vals = &value;
FILE* out = fopen("mylog.log", "w");
- fprintf(out, "Parameter #0:\t%d\nParameter #1:\t", param[0].data.d_int32);
+ fprintf(out, "Parameter #0:\t%d\nParameter #2:\t", param[0].data.d_int32);
for (int i = 0; i < 16; ++i)
- fprintf(out, "%d ", param[1].data.d_int8array[i]);
+ fprintf(out, "%d ", param[2].data.d_int8array[i]);
fprintf(out, "\n");
fclose(out);
}
然后:
> (my-test-plugin 1 16 #(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16))
(#t)
结果:
$ cat mylog.log
Parameter #0: 1
Parameter #2: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
您可以通过使大小大于长度来验证参数是否隐式链接:
> (my-test-plugin 1 17 #(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15))
Error: ( : 1) INT8 vector (argument 3) for function my-test-plugin has
size of 15 but expected size of 17
(前面的参数是RUN-NONINTERACTIVE(1)或元素大小(7),解释了2次测试中可用数组内容的不同数量。)