289 lines
8.6 KiB
C
289 lines
8.6 KiB
C
/**
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* Simple Evas-3D example illustrating usage of normal mapping and animation created
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* by interpolation between frames.
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*
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* @verbatim
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* gcc -o evas-3d-cube2 evas-3d-cube2.c `pkg-config --libs --cflags efl evas ecore ecore-evas eo` -lm
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* @endverbatim
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#else
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#define PACKAGE_EXAMPLES_DIR "."
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#define EFL_EO_API_SUPPORT
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#define EFL_BETA_API_SUPPORT
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#endif
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#include <Eo.h>
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#include <Evas.h>
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#include <Ecore.h>
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#include <Ecore_Evas.h>
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#include "evas-common.h"
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#define WIDTH 400
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#define HEIGHT 400
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static const char *normal_map_path = PACKAGE_EXAMPLES_DIR EVAS_IMAGE_FOLDER "/normal_lego.png";
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typedef struct _Scene_Data
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{
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Eo *scene;
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Eo *root_node;
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Eo *camera_node;
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Eo *light_node;
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Eo *mesh_node;
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Eo *camera;
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Eo *light;
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Eo *cube;
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Eo *mesh;
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Eo *material0;
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Eo *material1;
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Eo *texture0;
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Eo *texture1;
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Eo *texture_normal;
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} Scene_Data;
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static Ecore_Evas *ecore_evas = NULL;
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static Evas *evas = NULL;
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static Eo *background = NULL;
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static Eo *image = NULL;
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static const unsigned int pixels0[] =
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{
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0xff0000ff, 0xff0000ff, 0xffff0000, 0xffff0000,
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0xff0000ff, 0xff0000ff, 0xffff0000, 0xffff0000,
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0xff00ff00, 0xff00ff00, 0xff000000, 0xff000000,
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0xff00ff00, 0xff00ff00, 0xff000000, 0xff000000,
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};
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static const unsigned int pixels1[] =
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{
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0xffff0000, 0xffff0000, 0xff00ff00, 0xff00ff00,
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0xffff0000, 0xffff0000, 0xff00ff00, 0xff00ff00,
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0xff0000ff, 0xff0000ff, 0xffffffff, 0xffffffff,
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0xff0000ff, 0xff0000ff, 0xffffffff, 0xffffffff,
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};
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static void
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_on_delete(Ecore_Evas *ee EINA_UNUSED)
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{
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ecore_main_loop_quit();
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}
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static void
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_on_canvas_resize(Ecore_Evas *ee)
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{
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int w, h;
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ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
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eo_do(background, efl_gfx_size_set(w, h));
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eo_do(image, efl_gfx_size_set(w, h));
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}
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static Eina_Bool
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_animate_scene(void *data)
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{
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static float angle = 0.0f;
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static int frame = 0;
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static int inc = 1;
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Scene_Data *scene = (Scene_Data *)data;
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angle += 0.2;
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eo_do(scene->mesh_node,
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evas_3d_node_orientation_angle_axis_set(angle, 1.0, 1.0, 1.0));
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/* Rotate */
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if (angle > 360.0) angle -= 360.0f;
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frame += inc;
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if (frame >= 20) inc = -1;
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else if (frame <= 0) inc = 1;
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eo_do(scene->mesh_node, evas_3d_node_mesh_frame_set(scene->mesh, frame));
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return EINA_TRUE;
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}
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static void
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_camera_setup(Scene_Data *data)
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{
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data->camera = eo_add(EVAS_3D_CAMERA_CLASS, evas);
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eo_do(data->camera,
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evas_3d_camera_projection_perspective_set(60.0, 1.0, 2.0, 50.0));
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data->camera_node =
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eo_add(EVAS_3D_NODE_CLASS, evas,
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evas_3d_node_constructor(EVAS_3D_NODE_TYPE_CAMERA));
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eo_do(data->camera_node,
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evas_3d_node_camera_set(data->camera),
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evas_3d_node_position_set(0.0, 0.0, 3.0),
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evas_3d_node_look_at_set(EVAS_3D_SPACE_PARENT, 0.0, 0.0, 0.0,
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EVAS_3D_SPACE_PARENT, 0.0, 1.0, 0.0));
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eo_do(data->root_node,
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evas_3d_node_member_add(data->camera_node));
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}
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static void
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_light_setup(Scene_Data *data)
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{
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data->light = eo_add(EVAS_3D_LIGHT_CLASS, evas);
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eo_do(data->light,
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evas_3d_light_ambient_set(0.2, 0.2, 0.2, 1.0),
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evas_3d_light_diffuse_set(1.0, 1.0, 1.0, 1.0),
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evas_3d_light_specular_set(1.0, 1.0, 1.0, 1.0));
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data->light_node =
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eo_add(EVAS_3D_NODE_CLASS, evas,
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evas_3d_node_constructor(EVAS_3D_NODE_TYPE_LIGHT));
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eo_do(data->light_node,
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evas_3d_node_light_set(data->light),
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evas_3d_node_position_set(0.0, 0.0, 10.0),
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evas_3d_node_look_at_set(EVAS_3D_SPACE_PARENT, 0.0, 0.0, 0.0,
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EVAS_3D_SPACE_PARENT, 0.0, 1.0, 0.0));
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eo_do(data->root_node, evas_3d_node_member_add(data->light_node));
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}
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static void
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_mesh_setup(Scene_Data *data)
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{
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/* Setup material. */
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data->material0 = eo_add(EVAS_3D_MATERIAL_CLASS, evas);
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data->material1 = eo_add(EVAS_3D_MATERIAL_CLASS, evas);
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eo_do(data->material0,
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evas_3d_material_enable_set(EVAS_3D_MATERIAL_AMBIENT, EINA_TRUE),
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evas_3d_material_enable_set(EVAS_3D_MATERIAL_DIFFUSE, EINA_TRUE),
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evas_3d_material_enable_set(EVAS_3D_MATERIAL_SPECULAR, EINA_TRUE),
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evas_3d_material_enable_set(EVAS_3D_MATERIAL_NORMAL, EINA_TRUE),
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evas_3d_material_color_set(EVAS_3D_MATERIAL_AMBIENT, 0.2, 0.2, 0.2, 1.0),
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evas_3d_material_color_set(EVAS_3D_MATERIAL_DIFFUSE, 0.8, 0.8, 0.8, 1.0),
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evas_3d_material_color_set(EVAS_3D_MATERIAL_SPECULAR, 1.0, 1.0, 1.0, 1.0),
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evas_3d_material_shininess_set(100.0));
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eo_do(data->material1,
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evas_3d_material_enable_set(EVAS_3D_MATERIAL_AMBIENT, EINA_TRUE),
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evas_3d_material_enable_set(EVAS_3D_MATERIAL_DIFFUSE, EINA_TRUE),
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evas_3d_material_enable_set(EVAS_3D_MATERIAL_SPECULAR, EINA_TRUE),
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evas_3d_material_enable_set(EVAS_3D_MATERIAL_NORMAL, EINA_TRUE),
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evas_3d_material_color_set(EVAS_3D_MATERIAL_AMBIENT, 0.2, 0.2, 0.2, 1.0),
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evas_3d_material_color_set(EVAS_3D_MATERIAL_DIFFUSE, 0.8, 0.8, 0.8, 1.0),
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evas_3d_material_color_set(EVAS_3D_MATERIAL_SPECULAR, 1.0, 1.0, 1.0, 1.0),
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evas_3d_material_shininess_set(100.0));
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data->texture0 = eo_add(EVAS_3D_TEXTURE_CLASS, evas);
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data->texture1 = eo_add(EVAS_3D_TEXTURE_CLASS, evas);
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data->texture_normal = eo_add(EVAS_3D_TEXTURE_CLASS, evas);
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eo_do(data->texture0,
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evas_3d_texture_data_set(EVAS_COLORSPACE_ARGB8888, 4, 4, &pixels0[0]));
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eo_do(data->texture1,
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evas_3d_texture_data_set(EVAS_COLORSPACE_ARGB8888, 4, 4, &pixels1[0]));
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eo_do(data->texture_normal,
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evas_3d_texture_file_set(normal_map_path, NULL));
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eo_do(data->material0,
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evas_3d_material_texture_set(EVAS_3D_MATERIAL_DIFFUSE, data->texture0));
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eo_do(data->material1,
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evas_3d_material_texture_set(EVAS_3D_MATERIAL_DIFFUSE, data->texture1));
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eo_do(data->material1,
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evas_3d_material_texture_set(EVAS_3D_MATERIAL_NORMAL, data->texture_normal));
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/* Set data of primitive */
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data->cube = eo_add(EVAS_3D_PRIMITIVE_CLASS, evas);
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eo_do(data->cube,
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evas_3d_primitive_form_set(EVAS_3D_MESH_PRIMITIVE_CUBE));
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/* Setup mesh. */
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data->mesh = eo_add(EVAS_3D_MESH_CLASS, evas);
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eo_do(data->mesh,
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evas_3d_mesh_from_primitive_set(0, data->cube),
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evas_3d_mesh_frame_material_set(0, data->material0),
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evas_3d_mesh_frame_add(20),
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evas_3d_mesh_frame_material_set(20, data->material1),
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evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_NORMAL_MAP));
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data->mesh_node =
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eo_add(EVAS_3D_NODE_CLASS, evas,
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evas_3d_node_constructor(EVAS_3D_NODE_TYPE_MESH));
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eo_do(data->root_node, evas_3d_node_member_add(data->mesh_node));
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eo_do(data->mesh_node, evas_3d_node_mesh_add(data->mesh));
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}
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static void
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_scene_setup(Scene_Data *data)
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{
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data->scene = eo_add(EVAS_3D_SCENE_CLASS, evas);
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eo_do(data->scene,
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evas_3d_scene_size_set(WIDTH, HEIGHT),
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evas_3d_scene_background_color_set(0.0, 0.0, 0.0, 0.0));
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data->root_node =
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eo_add(EVAS_3D_NODE_CLASS, evas,
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evas_3d_node_constructor(EVAS_3D_NODE_TYPE_NODE));
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_camera_setup(data);
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_light_setup(data);
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_mesh_setup(data);
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eo_do(data->scene,
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evas_3d_scene_root_node_set(data->root_node),
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evas_3d_scene_camera_node_set(data->camera_node));
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}
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int
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main(void)
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{
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//Unless Evas 3D supports Software renderer, we set gl backened forcely.
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setenv("ECORE_EVAS_ENGINE", "opengl_x11", 1);
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Scene_Data data;
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if (!ecore_evas_init()) return 0;
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ecore_evas = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL);
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if (!ecore_evas) return 0;
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ecore_evas_callback_delete_request_set(ecore_evas, _on_delete);
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ecore_evas_callback_resize_set(ecore_evas, _on_canvas_resize);
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ecore_evas_show(ecore_evas);
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evas = ecore_evas_get(ecore_evas);
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_scene_setup(&data);
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/* Add a background rectangle objects. */
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background = eo_add(EVAS_RECTANGLE_CLASS, evas);
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eo_do(background,
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efl_gfx_color_set(0, 0, 0, 255),
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efl_gfx_size_set(WIDTH, HEIGHT),
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efl_gfx_visible_set(EINA_TRUE));
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/* Add an image object for 3D scene rendering. */
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image = evas_object_image_filled_add(evas);
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eo_do(image,
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efl_gfx_size_set(WIDTH, HEIGHT),
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efl_gfx_visible_set(EINA_TRUE));
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/* Set the image object as render target for 3D scene. */
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eo_do(image, evas_obj_image_scene_set(data.scene));
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/* Add animation timer callback. */
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ecore_timer_add(0.01, _animate_scene, &data);
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/* Enter main loop. */
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ecore_main_loop_begin();
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ecore_evas_free(ecore_evas);
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ecore_evas_shutdown();
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return 0;
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}
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