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efl/src/examples/evas/evas-3d-colorpick.c

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/**
* This example shows how to use color pick algorithm for finding node at scene.
* Enable color pick mode of meshes and scene objects.
* Click (left for color pick, right for geometry pick) on 3D object and see
* in terminal time response of the found node.
* Use key UP/DOWN for changing z coordinate of camera
* Use key LEFT/RIGHT for scale each node
* Use shortcut parameters of commanline: r - rows of objects, c - columns of objects,
* p - precision of the spheres, f - path for first texture, s - path for second texture.
*
* @verbatim
* gcc -o evas-3d-colorpick evas-3d-colorpick.c evas-3d-primitives.c `pkg-config --libs --cflags evas ecore ecore-evas eo eina efl` -lm
* @endverbatim
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#else
#define PACKAGE_EXAMPLES_DIR "."
#define EFL_EO_API_SUPPORT
#define EFL_BETA_API_SUPPORT
#endif
#include <Eo.h>
#include <Evas.h>
#include <Ecore.h>
#include <Ecore_Evas.h>
#include <Ecore_Getopt.h>
#include <math.h>
#include "evas-3d-primitives.h"
#include "evas-common.h"
#define WIDTH 800
#define HEIGHT 600
#define ANIMATION_COUNT 3
#define MAX_PATH 128
#define INIT_SCALE 7.5
#define BIG_SCALE 10.0
#define SMALL_SCALE 5.0
#define SCALE_UNIT 0.5
#define VEC_3(value) value, value, value
static const vec2 tex_scale = {1, 1};
static const char *image1_path = PACKAGE_EXAMPLES_DIR EVAS_IMAGE_FOLDER "/wood.jpg";
static const char *image2_path = PACKAGE_EXAMPLES_DIR EVAS_IMAGE_FOLDER "/rocks.jpg";
Ecore_Evas *ecore_evas = NULL;
Evas *evas = NULL;
Evas_Object *image = NULL, *bg = NULL;
Eina_Bool (*animate_func[ANIMATION_COUNT])(void*);
static const
Ecore_Getopt optdesc = {
"",
NULL,
"0.0",
"",
"",
"Example mesh color pick mechanism",
0,
{
ECORE_GETOPT_STORE_INT('r', "row", "Rows of spheres"),
ECORE_GETOPT_STORE_INT('c', "column", "Columns of spheres"),
ECORE_GETOPT_STORE_INT('p', "precision", "Precision of spheres"),
ECORE_GETOPT_STORE_STR('f', "texture1", "Name1 of texture"),
ECORE_GETOPT_STORE_STR('s', "texture2", "Name2 of texture"),
ECORE_GETOPT_HELP('h', "help"),
ECORE_GETOPT_SENTINEL
}
};
typedef struct _Object
{
Eo *node;
Eo *mesh1;
Eo *mesh2;
Eo *material1;
Eo *material2;
Eo *texture1;
Eo *texture2;
Evas_Real speed;
Ecore_Timer *animate;
Eina_Bool (*sphere_init)(void *sphere, const char *texture1, const char *texture2);
Eina_Bool (*sphere_animate)(void *data);
} Test_object;
typedef struct _Scene
{
Eo *camera;
Eo *light;
Eo *scene;
Eo *root_node;
Eo *camera_node;
Eo *light_node;
int row;
int col;
int precision;
Eina_List *spheres;
Eina_Bool (*scene_init)(const char *texture1, const char *texture2);
} Scene_Data;
Scene_Data globalscene;
static void
_on_delete(Ecore_Evas *ee EINA_UNUSED)
{
Eina_List *l;
Test_object * item;
EINA_LIST_FOREACH(globalscene.spheres, l, item)
{
free(item);
}
eina_list_free(globalscene.spheres);
ecore_main_loop_quit();
}
static void
_on_canvas_resize(Ecore_Evas *ee)
{
int w, h;
ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
eo_do(bg, evas_obj_size_set(w, h));
eo_do(image, evas_obj_size_set(w, h));
}
static Eina_Bool
_animate_sphere1(void *data)
{
static int angle = 0.0;
Eo *n = (Eo*)(((Test_object *)data)->node);
eo_do(n, evas_3d_node_orientation_angle_axis_set(angle, 1.0, 0.0, 1.0));
angle++;
if (angle > 360) angle = 0.0;
return EINA_TRUE;
}
static Eina_Bool
_animate_sphere2(void *data)
{
static int angle = 0.0;
Eo *n = (Eo*)(((Test_object *)data)->node);
eo_do(n, evas_3d_node_orientation_angle_axis_set(angle, 0.0, 1.0, 1.0));
angle++;
if (angle > 360) angle = 0.0;
return EINA_TRUE;
}
static Eina_Bool
_animate_sphere3(void *data)
{
static int angle = 0.0;
Eo *n = (Eo*)(((Test_object *)data)->node);
eo_do(n, evas_3d_node_orientation_angle_axis_set(angle, 1.0, 1.0, 0.0));
angle++;
if (angle > 360) angle = 0.0;
return EINA_TRUE;
}
void _recalculate_position()
{
int i = 0, j = 0, count = 0;
Evas_Real x0, y0, z0, x1, y1, z1, shiftx = 0, shifty = 0;
Test_object *m;
eo_do(((Test_object *)eina_list_nth(globalscene.spheres, 0))->node, evas_3d_object_update());
eo_do(((Test_object *)eina_list_nth(globalscene.spheres, 0))->node,
evas_3d_node_bounding_box_get(&x0, &y0, &z0, &x1, &y1, &z1));
for (i = 0; i < globalscene.row; ++i)
{
shiftx = i * 2 * x1;
for(j = 0; j < globalscene.col; ++j)
{
shifty = j * 2 * y1;
m = (Test_object *)eina_list_nth(globalscene.spheres, count);
eo_do(m->node, evas_3d_node_position_set(shifty, 0.0, shiftx));
count++;
}
}
}
static void
_on_key_down(void *data EINA_UNUSED, Evas *e EINA_UNUSED,
Evas_Object *eo EINA_UNUSED, void *event_info)
{
Evas_Event_Key_Down *ev = event_info;
Evas_Real x, y, z;
Eina_List *l;
Test_object * item;
if (!strcmp(ev->key, "Down"))
{
eo_do(globalscene.camera_node, evas_3d_node_position_get(EVAS_3D_SPACE_PARENT, &x, &y, &z));
eo_do(globalscene.camera_node, evas_3d_node_position_set(x, y, (z - 5)));
}
else if (!strcmp(ev->key, "Up"))
{
eo_do(globalscene.camera_node, evas_3d_node_position_get(EVAS_3D_SPACE_PARENT, &x, &y, &z));
eo_do(globalscene.camera_node, evas_3d_node_position_set(x, y, (z + 5)));
}
else if (!strcmp(ev->key, "Left"))
{
eo_do(((Test_object *)eina_list_nth(globalscene.spheres, 0))->node,
evas_3d_node_scale_get(EVAS_3D_SPACE_PARENT, &x, &y, &z));
EINA_LIST_FOREACH(globalscene.spheres, l, item)
{
eo_do(item->node, evas_3d_node_scale_set((x - SCALE_UNIT), (y - SCALE_UNIT), (z - SCALE_UNIT)));
}
_recalculate_position();
}
else if (!strcmp(ev->key, "Right"))
{
eo_do(((Test_object *)eina_list_nth(globalscene.spheres, 0))->node,
evas_3d_node_scale_get(EVAS_3D_SPACE_PARENT, &x, &y, &z));
EINA_LIST_FOREACH(globalscene.spheres, l, item)
{
eo_do(item->node, evas_3d_node_scale_set((x + SCALE_UNIT), (y + SCALE_UNIT), (z + SCALE_UNIT)));
}
_recalculate_position();
}
else
fprintf(stdout, "Down, Up for position of camera; Left, Right for scale of each node");
}
static void
_on_mouse_down(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *eo EINA_UNUSED, void *event_info)
{
Evas_Event_Mouse_Down *ev = event_info;
Evas_3D_Node *n;
Evas_3D_Mesh *m;
Evas_Real s, t;
clock_t time;
float diff_sec;
time = clock();
Eina_Bool flag;
if (ev->button == 1)
{
eo_do(globalscene.scene, evas_3d_scene_color_pick_enable_set(EINA_TRUE));
eo_do(globalscene.scene,
flag = evas_3d_scene_pick(ev->canvas.x, ev->canvas.y, &n, &m, NULL, NULL));
time = clock() - time;
diff_sec = ((float)time) / CLOCKS_PER_SEC / 10;
if (flag)
{
fprintf(stdout, "Boom! Time expended for color pick: %2.7f .\n", diff_sec);
eo_do(n, evas_3d_node_scale_set(VEC_3(SMALL_SCALE)));
}
}
else
{
eo_do(globalscene.scene, evas_3d_scene_color_pick_enable_set(EINA_FALSE));
eo_do(globalscene.scene, flag = evas_3d_scene_pick(ev->canvas.x, ev->canvas.y, &n, &m, &s, &t));
time = clock() - time;
diff_sec = ((float)time) / CLOCKS_PER_SEC / 10;
if (flag)
{
fprintf(stdout, "Boom! Time expended for geometry pick: %2.7f .\n", diff_sec);
eo_do(n, evas_3d_node_scale_set(VEC_3(BIG_SCALE)));
}
}
}
Eina_Bool
_init_sphere(void *this, const char *texture1, const char *texture2)
{
Test_object *sphere = (Test_object *)this;
sphere->mesh1 = eo_add(EVAS_3D_MESH_CLASS, evas);
sphere->mesh2 = eo_add(EVAS_3D_MESH_CLASS, evas);
sphere->material1 = eo_add(EVAS_3D_MATERIAL_CLASS, evas);
sphere->material2 = eo_add(EVAS_3D_MATERIAL_CLASS, evas);
evas_3d_add_sphere_frame(sphere->mesh1, 0, globalscene.precision, tex_scale);
eo_do(sphere->mesh1,
evas_3d_mesh_frame_material_set(0, sphere->material1),
evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_PHONG));
evas_3d_add_sphere_frame(sphere->mesh2, 0, globalscene.precision, tex_scale);
eo_do(sphere->mesh2,
evas_3d_mesh_frame_material_set(0, sphere->material2),
evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_PHONG));
eo_do(sphere->mesh1, evas_3d_mesh_color_pick_enable_set(EINA_TRUE));
eo_do(sphere->mesh2, evas_3d_mesh_color_pick_enable_set(EINA_TRUE));
sphere->texture1 = eo_add(EVAS_3D_TEXTURE_CLASS, evas);
eo_do(sphere->texture1,
evas_3d_texture_file_set(texture1, NULL),
evas_3d_texture_filter_set(EVAS_3D_TEXTURE_FILTER_NEAREST,
EVAS_3D_TEXTURE_FILTER_NEAREST),
evas_3d_texture_wrap_set(EVAS_3D_WRAP_MODE_REPEAT,
EVAS_3D_WRAP_MODE_REPEAT));
sphere->texture2 = eo_add(EVAS_3D_TEXTURE_CLASS, evas);
eo_do(sphere->texture2,
evas_3d_texture_file_set(texture2, NULL),
evas_3d_texture_filter_set(EVAS_3D_TEXTURE_FILTER_NEAREST,
EVAS_3D_TEXTURE_FILTER_NEAREST),
evas_3d_texture_wrap_set(EVAS_3D_WRAP_MODE_REPEAT,
EVAS_3D_WRAP_MODE_REPEAT));
eo_do(sphere->material1,
evas_3d_material_texture_set(EVAS_3D_MATERIAL_DIFFUSE, sphere->texture1),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_AMBIENT, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_DIFFUSE, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_SPECULAR, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_NORMAL, EINA_TRUE),
evas_3d_material_color_set(EVAS_3D_MATERIAL_AMBIENT,
0.01, 0.01, 0.01, 1.0),
evas_3d_material_color_set(EVAS_3D_MATERIAL_DIFFUSE,
1.0, 1.0, 1.0, 1.0),
evas_3d_material_color_set(EVAS_3D_MATERIAL_SPECULAR,
1.0, 1.0, 1.0, 1.0),
evas_3d_material_shininess_set(50.0));
eo_do(sphere->material2,
evas_3d_material_texture_set(EVAS_3D_MATERIAL_DIFFUSE, sphere->texture2),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_AMBIENT, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_DIFFUSE, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_SPECULAR, EINA_TRUE),
evas_3d_material_enable_set(EVAS_3D_MATERIAL_NORMAL, EINA_TRUE),
evas_3d_material_color_set(EVAS_3D_MATERIAL_AMBIENT,
0.01, 0.01, 0.01, 1.0),
evas_3d_material_color_set(EVAS_3D_MATERIAL_DIFFUSE,
1.0, 1.0, 1.0, 1.0),
evas_3d_material_color_set(EVAS_3D_MATERIAL_SPECULAR,
1.0, 1.0, 1.0, 1.0),
evas_3d_material_shininess_set(50.0));
return EINA_TRUE;
}
Eina_Bool
_init_scene(const char *texture1, const char *texture2)
{
int i = 0, j = 0, count = 0;
Evas_Real x0, y0, z0, x1, y1, z1, tmp, shiftx = 0, shifty = 0;
Test_object *m;
animate_func[0] = _animate_sphere1;
animate_func[1] = _animate_sphere2;
animate_func[2] = _animate_sphere3;
globalscene.scene = eo_add(EVAS_3D_SCENE_CLASS, evas);
globalscene.root_node = eo_add(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_NODE));
globalscene.camera = eo_add(EVAS_3D_CAMERA_CLASS, evas);
eo_do(globalscene.camera,
evas_3d_camera_projection_perspective_set(60.0, 1.0, 1.0, 1000.0));
globalscene.camera_node =
eo_add(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_CAMERA));
eo_do(globalscene.camera_node,
evas_3d_node_camera_set(globalscene.camera));
eo_do(globalscene.root_node,
evas_3d_node_member_add(globalscene.camera_node));
eo_do(globalscene.camera_node,
evas_3d_node_position_set(70.0, 0.0, 300.0),
evas_3d_node_look_at_set(EVAS_3D_SPACE_PARENT, 0.0, 0.0, -1000.0,
EVAS_3D_SPACE_PARENT, 0.0, 1.0, 0.0));
globalscene.light = eo_add(EVAS_3D_LIGHT_CLASS, evas);
eo_do(globalscene.light,
evas_3d_light_ambient_set(1.0, 1.0, 1.0, 1.0),
evas_3d_light_diffuse_set(1.0, 1.0, 1.0, 1.0),
evas_3d_light_specular_set(1.0, 1.0, 1.0, 1.0),
evas_3d_light_directional_set(EINA_TRUE));
globalscene.light_node =
eo_add(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_LIGHT));
eo_do(globalscene.light_node,
evas_3d_node_light_set(globalscene.light),
evas_3d_node_position_set(100.0, 50.0, 300.0),
evas_3d_node_look_at_set(EVAS_3D_SPACE_PARENT, 0.0, 0.0, 0.0,
EVAS_3D_SPACE_PARENT, 1.0, 1.0, 1.0));
eo_do(globalscene.root_node,
evas_3d_node_member_add(globalscene.light_node));
tmp = 0.01;
for (i = 0; i < globalscene.col * globalscene.row; i++, j++)
{
Test_object *spheretmp;
m = malloc(sizeof(Test_object));
m->sphere_init = _init_sphere;
if (!i)
m->sphere_init(m, texture1, texture2);
else
{
spheretmp = (Test_object *)eina_list_nth(globalscene.spheres, 0);
m->mesh1 = spheretmp->mesh1;
m->mesh2 = spheretmp->mesh2;
m->material1 = spheretmp->material1;
m->material2 = spheretmp->material2;
m->texture1 = spheretmp->texture1;
m->texture2 = spheretmp->texture2;
}
m->node = eo_add(EVAS_3D_NODE_CLASS, evas,
evas_3d_node_constructor(EVAS_3D_NODE_TYPE_MESH));
m->speed = tmp;
if (j >= ANIMATION_COUNT) j = 0;
m->sphere_animate = animate_func[j];
m->animate = ecore_timer_add(m->speed, m->sphere_animate, m);
eo_do(globalscene.root_node, evas_3d_node_member_add(m->node));
eo_do(m->node, evas_3d_node_mesh_add(m->mesh1),
evas_3d_node_scale_set(VEC_3(INIT_SCALE)));
globalscene.spheres = eina_list_append(globalscene.spheres, m);
tmp += 0.01;
}
eo_do(((Test_object *)eina_list_nth(globalscene.spheres, 0))->node, evas_3d_object_update());
eo_do(((Test_object *)eina_list_nth(globalscene.spheres, 0))->node,
evas_3d_node_bounding_box_get(&x0, &y0, &z0, &x1, &y1, &z1));
for (i = 0; i < globalscene.row; ++i)
{
shiftx = i * 2 * x1;
for(j = 0; j < globalscene.col; ++j)
{
shifty = j * 2 * y1;
m = (Test_object *)eina_list_nth(globalscene.spheres, count);
eo_do(m->node, evas_3d_node_position_set(shifty, 0.0, shiftx));
if (!(i % 2))
{
eo_do(m->node, evas_3d_node_mesh_del(m->mesh1));
eo_do(m->node, evas_3d_node_mesh_add(m->mesh2));
}
count++;
}
}
eo_do(globalscene.scene,
evas_3d_scene_root_node_set(globalscene.root_node),
evas_3d_scene_camera_node_set(globalscene.camera_node),
evas_3d_scene_size_set(WIDTH, HEIGHT));
return EINA_TRUE;
}
int main(int argc, char **argv)
{
int row = 0, col = 0, precision = 0;
char *texture1 = NULL, *texture2 = NULL;
Eina_Bool r;
Ecore_Getopt_Value values[] = {
ECORE_GETOPT_VALUE_INT(row),
ECORE_GETOPT_VALUE_INT(col),
ECORE_GETOPT_VALUE_INT(precision),
ECORE_GETOPT_VALUE_STR(texture1),
ECORE_GETOPT_VALUE_STR(texture2),
ECORE_GETOPT_VALUE_NONE
};
if (!ecore_evas_init()) return 0;
if (!ecore_init()) return 0;
ecore_getopt_parse(&optdesc, values, argc, argv);
if (!row) row = 2;
if (!col) col = 5;
if (!precision) precision = 30;
if (!texture1) texture1 = (char *)image1_path;
if (!texture2) texture2 = (char *)image2_path;
fprintf(stdout, "row - %d, col - %d, precision of spheres - %d, texture1 - %s, texture2 - %s\n",
row, col, precision, texture1, texture2);
ecore_evas = ecore_evas_new("opengl_x11", 10, 10, WIDTH, HEIGHT, NULL);
if (!ecore_evas) return 0;
ecore_evas_callback_delete_request_set(ecore_evas, _on_delete);
ecore_evas_callback_resize_set(ecore_evas, _on_canvas_resize);
ecore_evas_show(ecore_evas);
evas = ecore_evas_get(ecore_evas);
bg = evas_object_rectangle_add(evas);
evas_object_color_set(bg, 100, 100, 100, 255);
evas_object_move(bg, 0, 0);
evas_object_resize(bg, WIDTH, HEIGHT);
evas_object_show(bg);
globalscene.scene_init = _init_scene;
globalscene.row = row;
globalscene.col = col;
globalscene.precision = precision;
globalscene.scene_init(texture1, texture2);
image = evas_object_image_filled_add(evas);
eo_do(image,
evas_obj_size_set(WIDTH, HEIGHT),
evas_obj_visibility_set(EINA_TRUE));
evas_object_focus_set(image, EINA_TRUE);
eo_do(image, evas_obj_image_scene_set(globalscene.scene));
r = evas_object_key_grab(image, "Down", 0, 0, EINA_TRUE);
r = evas_object_key_grab(image, "Up", 0, 0, EINA_TRUE);
r = evas_object_key_grab(image, "Left", 0, 0, EINA_TRUE);
r = evas_object_key_grab(image, "Right", 0, 0, EINA_TRUE);
(void) r;
evas_object_event_callback_add(image, EVAS_CALLBACK_MOUSE_DOWN, _on_mouse_down, NULL);
evas_object_event_callback_add(image, EVAS_CALLBACK_KEY_DOWN, _on_key_down, NULL);
ecore_main_loop_begin();
ecore_evas_free(ecore_evas);
ecore_evas_shutdown();
return 0;
}
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