Data commit

Task/Bitmap-PPM-conversion-through-a-pipe/Wren/bitmap-ppm-conversion-through-a-pipe-1.wren

@@ -0,0 +1,53 @@
+/* gcc -O3 -std=c11 -shared -o pipeconv.so -fPIC  -I./include pipeconv.c */
+
+#include <stdlib.h>
+#include <string.h>
+#include "dome.h"
+
+static DOME_API_v0* core;
+static WREN_API_v0* wren;
+
+static const char* source =  ""
+"class PipeConv {\n"
+  "foreign static convert(from, to) \n"
+"} \n";
+
+void C_convert(WrenVM* vm) {
+    const char *from = wren->getSlotString(vm, 1);
+    const char *to = wren->getSlotString(vm, 2);
+    char command[strlen(from) + strlen(to) + 10];
+    strcpy(command, "convert ");
+    strcat(command, from);
+    strcat(command, " ");
+    strcat(command, to);
+    int res = system(command);
+}
+
+DOME_EXPORT DOME_Result PLUGIN_onInit(DOME_getAPIFunction DOME_getAPI, DOME_Context ctx) {
+    core = DOME_getAPI(API_DOME, DOME_API_VERSION);
+    wren = DOME_getAPI(API_WREN, WREN_API_VERSION);
+    core->registerModule(ctx, "pipeconv", source);
+    core->registerClass(ctx, "pipeconv", "PipeConv", NULL, NULL);
+    core->registerFn(ctx, "pipeconv", "static PipeConv.convert(_,_)", C_convert);
+    return DOME_RESULT_SUCCESS;
+}
+
+DOME_EXPORT DOME_Result PLUGIN_preUpdate(DOME_Context ctx) {
+    return DOME_RESULT_SUCCESS;
+}
+
+DOME_EXPORT DOME_Result PLUGIN_postUpdate(DOME_Context ctx) {
+    return DOME_RESULT_SUCCESS;
+}
+
+DOME_EXPORT DOME_Result PLUGIN_preDraw(DOME_Context ctx) {
+    return DOME_RESULT_SUCCESS;
+}
+
+DOME_EXPORT DOME_Result PLUGIN_postDraw(DOME_Context ctx) {
+    return DOME_RESULT_SUCCESS;
+}
+
+DOME_EXPORT DOME_Result PLUGIN_onShutdown(DOME_Context ctx) {
+    return DOME_RESULT_SUCCESS;
+}

Task/Bitmap-PPM-conversion-through-a-pipe/Wren/bitmap-ppm-conversion-through-a-pipe-2.wren

@@ -0,0 +1,28 @@
+import "graphics" for Canvas, ImageData
+import "dome" for Window
+import "plugin" for Plugin
+
+Plugin.load("pipeconv")
+
+import "pipeconv" for PipeConv
+
+class ConvertPPM {
+    construct new(fileName, fileName2, width, height) {
+        Window.resize(width, height)
+        Canvas.resize(width, height)
+        Window.title = "Convert PPM file via pipe"
+        // convert .ppm file to .jpg via a pipe
+        PipeConv.convert(fileName, fileName2)
+        // load and display .jpg file
+        var image = ImageData.loadFromFile(fileName2)
+        image.draw(0, 0)
+    }
+
+    init() {}
+
+    update() {}
+
+    draw(alpha) {}
+}
+
+var Game = ConvertPPM.new("output.ppm", "output_piped.jpg", 350, 350)