Initial commit. Before switching to stretchy_buffer from utarray.

.gitignore

+*.user
+*.~

cube.obj

+# Blender3D v249 OBJ File: untitled.blend
+# www.blender3d.org
+mtllib cube.mtl
+v 1.000000 -1.000000 -1.000000
+v 1.000000 -1.000000 1.000000
+v -1.000000 -1.000000 1.000000
+v -1.000000 -1.000000 -1.000000
+v 1.000000 1.000000 -1.000000
+v 0.999999 1.000000 1.000001
+v -1.000000 1.000000 1.000000
+v -1.000000 1.000000 -1.000000
+vt 0.748573 0.750412
+vt 0.749279 0.501284
+vt 0.999110 0.501077
+vt 0.999455 0.750380
+vt 0.250471 0.500702
+vt 0.249682 0.749677
+vt 0.001085 0.750380
+vt 0.001517 0.499994
+vt 0.499422 0.500239
+vt 0.500149 0.750166
+vt 0.748355 0.998230
+vt 0.500193 0.998728
+vt 0.498993 0.250415
+vt 0.748953 0.250920
+vn 0.000000 0.000000 -1.000000
+vn -1.000000 -0.000000 -0.000000
+vn -0.000000 -0.000000 1.000000
+vn -0.000001 0.000000 1.000000
+vn 1.000000 -0.000000 0.000000
+vn 1.000000 0.000000 0.000001
+vn 0.000000 1.000000 -0.000000
+vn -0.000000 -1.000000 0.000000
+usemtl Material_ray.png
+s off
+f 5/1/1 1/2/1 4/3/1
+f 5/1/1 4/3/1 8/4/1
+f 3/5/2 7/6/2 8/7/2
+f 3/5/2 8/7/2 4/8/2
+f 2/9/3 6/10/3 3/5/3
+f 6/10/4 7/6/4 3/5/4
+f 1/2/5 5/1/5 2/9/5
+f 5/1/6 6/10/6 2/9/6
+f 5/1/7 8/11/7 6/10/7
+f 8/11/7 7/12/7 6/10/7
+f 1/2/8 2/9/8 3/13/8
+f 1/2/8 3/13/8 4/14/8
+

j3d.pro

+JOEY = /home/scott/joey
+include($$JOEY/dist/joey.pri)
+
+HEADERS += \
+	utarray.h
+
+SOURCES += \
+	main.c
+
+OTHER_FILES += \
+	postlink.sh \
+	notes.txt \
+	cube.obj
+
+linux:QMAKE_POST_LINK = $$PWD/postlink.sh "$$PWD" "$$JOEY"

main.c

+#include <stdio.h>
+#include <math.h>
+
+#include "utarray.h"
+
+#define JOEY_MAIN
+#include "joey.h"
+#ifdef JOEY_IIGS
+segment "j3d";
+#endif
+
+#pragma GCC diagnostic push
+//#pragma GCC diagnostic ignored "-Wcast-align"
+
+typedef struct {
+	float x;
+	float y;
+	float z;
+} j3VertexT;
+
+typedef struct {
+	j3VertexT local[3];
+	j3VertexT world[3];
+	j3VertexT camera[3];
+} j3TriangleT;
+
+typedef struct {
+	UT_array *verticies;
+	UT_array *triangles;
+} j3ObjectT;
+
+typedef struct {
+	UT_array *objects;
+} j3WorldT;
+
+
+static UT_icd j3VertexT_icd   = { sizeof(j3VertexT),   NULL, NULL, NULL };
+static UT_icd j3TriangleT_icd = { sizeof(j3TriangleT), NULL, NULL, NULL };
+static UT_icd j3WorldT_icd    = { sizeof(j3WorldT),    NULL, NULL, NULL };
+
+
+bool j3WorldLoad(char *file, j3WorldT *world);
+
+
+bool j3WorldLoad(char *file, j3WorldT *world) {
+	int         r;
+	int         x;
+	char        token[1024];
+	char       *c;
+	FILE       *in;
+	j3VertexT  *vp;
+	j3VertexT   v;
+	j3ObjectT   o;
+	j3TriangleT t;
+
+	in = fopen(jlUtilMakePathname(file, "obj"), "rt");
+
+	// Did we find the file?
+	if (in == NULL) {
+		// Nope.
+		return false;
+	}
+
+	// Initialize object array inside world object
+	utarray_new(world->objects, &j3WorldT_icd);
+
+	// Create an initial object to read data into (***TODO*** support multiple objects)
+	utarray_new(o.verticies, &j3VertexT_icd);
+	utarray_new(o.triangles, &j3TriangleT_icd);
+
+	while (true) {
+
+		// Read next token
+		r = fscanf(in, "%s", token);
+		//printf("fscanf s = %d  [%s]\n", r, token);
+
+		// End of file?
+		if (r == EOF) {
+			break;
+		}
+
+		// Vertex?
+		if (strcmp(token, "v" ) == 0) {
+			r = fscanf(in, "%f %f %f\n", &v.x, &v.y, &v.z);
+			//printf("fscanf f f f = %d  [%s]\n", r, token);
+			//printf("Vertex:  %f  %f  %f\n", v.x, v.y, v.z);
+			utarray_push_back(o.verticies, &v);
+		}
+
+		// Face?
+		if (strcmp(token, "f" ) == 0) {
+			//printf("Triangle:\n");
+			for (x=0; x<3; x++) {
+				// Fetch 'x'th vertex index
+				r = fscanf(in, "%s", token);
+				//printf("fscanf s = %d  [%s]\n", r, token);
+				c = strstr(token, "/");
+				if (c) c[0] = 0;
+				r = atoi(token);
+				//printf("atoi = %d\n", r);
+				vp = (j3VertexT *)utarray_eltptr(o.verticies, (unsigned int)r - 1);
+				t.local[x] = *vp;
+				//printf("  Face Index:  %s  Vertex:  %f  %f  %f\n", token, vp->x, vp->y, vp->z);
+			}
+			fscanf(in, "\n");
+			utarray_push_back(o.triangles, &t);
+		}
+	}
+
+	// Finished!  Clean up.
+	fclose(in);
+
+	return true;
+}
+
+
+int main(void) {
+
+	j3WorldT   world;
+	j3ObjectT *object;
+
+	jlUtilStartup("JoeyLib 3D");
+
+	j3WorldLoad("cube", &world);
+
+	printf("Made it here\n");
+
+	object = (j3ObjectT *)utarray_front(world.objects);
+	printf("Verticies:  %d\n", utarray_len(object->verticies));
+	printf("Triangles:  %d\n", utarray_len(object->triangles));
+
+	jlKeyWaitForAny();
+	jlUtilShutdown();
+}
+
+#pragma GCC diagnostic pop

postlink.sh

+#!/bin/bash
+
+GAME=$1
+export JOEY=$2
+
+mkdir -p data
+cp -f "${GAME}"/*.obj data/.