forked from enlightenment/efl
293 lines
9.0 KiB
C
293 lines
9.0 KiB
C
#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 <math.h>
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#define SET_VERTEX_DATA eo_do(mesh, evas_3d_mesh_vertex_count_set(vcount),\
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evas_3d_mesh_frame_add(0);\
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evas_3d_mesh_frame_vertex_data_copy_set(0, EVAS_3D_VERTEX_POSITION,\
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sizeof(vec3), &vertices[0]);\
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evas_3d_mesh_frame_vertex_data_copy_set(0, EVAS_3D_VERTEX_NORMAL,\
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sizeof(vec3), &normals[0]));\
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free(vertices);\
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free(normals);
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typedef struct _vec3
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{
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float x;
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float y;
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float z;
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} vec3;
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static const float cube_vertices[] =
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{
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/* Front */
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-1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0,
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1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 1.0,
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-1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0,
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1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0,
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/* Back */
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1.0, 1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0,
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-1.0, 1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0,
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1.0, -1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0,
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-1.0, -1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 0.0,
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/* Left */
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-1.0, 1.0, -1.0, -1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0,
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-1.0, 1.0, 1.0, -1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0,
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-1.0, -1.0, -1.0, -1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0, 0.0,
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-1.0, -1.0, 1.0, -1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0,
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/* Right */
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1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0,
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1.0, 1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0, 1.0,
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1.0, -1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 0.0, 0.0,
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1.0, -1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0, 0.0,
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/* Top */
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-1.0, 1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0,
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1.0, 1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0,
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-1.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 0.0,
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1.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 0.0,
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/* Bottom */
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1.0, -1.0, -1.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0,
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-1.0, -1.0, -1.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 1.0,
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1.0, -1.0, 1.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 0.0, 0.0,
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-1.0, -1.0, 1.0, 0.0, -1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0,
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};
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static const unsigned short cube_indices[] =
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{
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/* Front */
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0, 1, 2, 2, 1, 3,
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/* Back */
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4, 5, 6, 6, 5, 7,
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/* Left */
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8, 9, 10, 10, 9, 11,
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/* Right */
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12, 13, 14, 14, 13, 15,
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/* Top */
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16, 17, 18, 18, 17, 19,
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/* Bottom */
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20, 21, 22, 22, 21, 23
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};
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static const float square_vertices[] =
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{
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1.0, -1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 1.0,
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-1.0, -1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0,
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1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0,
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-1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0,
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};
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static const unsigned short square_indices[] = {0, 1, 2, 2, 1, 3};
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static void
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_set_grid_indices(Eo *mesh, int count)
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{
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int i, j;
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unsigned short *index, *indices;
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int vccount = count + 1;
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int icount = count * count * 6;
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indices = malloc(sizeof(short) * icount);
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index = indices;
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for(j = 0; j < count; j++)
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for(i = 0; i < count; i++)
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{
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*index++ = i + vccount * j;
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*index++ = i + vccount * (j + 1);
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*index++ = i + 1 + vccount * (j + 1);
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*index++ = i + vccount * j;
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*index++ = i + 1 + vccount * j;
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*index++ = i + vccount * (j + 1) + 1;
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}
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eo_do(mesh,
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evas_3d_mesh_index_data_copy_set(EVAS_3D_INDEX_FORMAT_UNSIGNED_SHORT,
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icount , &indices[0]));
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free(indices);
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}
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static void
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_set_tape_indices(Eo *mesh, int count)
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{
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unsigned short *index, *indices;
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int i, vccount = count + 1;
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int icount = count * 6;
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indices = malloc(sizeof(short) * icount);
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index = indices;
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for(i = 0; i < count; i++)
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{
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*index++ = i;
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*index++ = i + 1;
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*index++ = i + 1 + vccount;
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*index++ = i;
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*index++ = i + vccount;
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*index++ = i + vccount + 1;
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}
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eo_do(mesh,
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evas_3d_mesh_index_data_copy_set(EVAS_3D_INDEX_FORMAT_UNSIGNED_SHORT,
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icount , &indices[0]));
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free(indices);
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}
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static void
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_set_ball(Eo *mesh, int p)
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{
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int vcount, vccount, i, j;
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double dtheta, dfi, sinth, costh, fi, theta, sinfi, cosfi;
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vccount = p + 1;
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vcount = vccount * vccount;
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dtheta = M_PI / p;
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dfi = 2 * M_PI / p;
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vec3 *vertices = malloc(sizeof(vec3) * vcount);
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vec3 *normals = malloc(sizeof(vec3) * vcount);
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for (j = 0; j < vccount; j++)
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{
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theta = j * dtheta;
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sinth = sin(theta);
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costh = cos(theta);
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for (i = 0; i < vccount; i++)
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{
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fi = i * dfi;
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sinfi = sin(fi);
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cosfi = cos(fi);
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vertices[i + j * vccount].x = sinth * cosfi;
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vertices[i + j * vccount].y = sinth * sinfi;
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vertices[i + j * vccount].z = costh;
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normals[i + j * vccount].x = vertices[i + j * vccount].x;
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normals[i + j * vccount].y = vertices[i + j * vccount].y;
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normals[i + j * vccount].z = vertices[i + j * vccount].z;
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}
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}
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_set_grid_indices(mesh, p);
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SET_VERTEX_DATA
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}
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static void
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_set_cylinder(Eo *mesh, int p)
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{
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int vcount, vccount, i;
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double dfi, fi, sinfi, cosfi;
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vccount = p + 1;
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vcount = 2 * vccount;
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dfi = 2 * M_PI / p;
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vec3 *vertices = malloc(sizeof(vec3) * vcount);
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vec3 *normals = malloc(sizeof(vec3) * vcount);
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for (i = 0; i < vccount; i++)
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{
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fi = i * dfi;
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sinfi = sin(fi);
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cosfi = cos(fi);
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vertices[i + vccount].x = vertices[i].x = cosfi;
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vertices[i].y = -0.5;
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vertices[i + vccount].z = vertices[i].z = sinfi;
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vertices[i + vccount].y = 0.5;
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normals[i + vccount].x = normals[i].x = cosfi;
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normals[i + vccount].y = normals[i].y = 0;
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normals[i + vccount].z = normals[i].z = sinfi;
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}
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_set_tape_indices(mesh, p);
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SET_VERTEX_DATA
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}
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static void
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_set_cone(Eo *mesh, int p)
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{
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int vcount, vccount, i;
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double dfi, fi, sinfi, cosfi;
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vccount = p + 1;
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vcount = 2 * vccount;
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dfi = 2 * M_PI / p;
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vec3 *vertices = malloc(sizeof(vec3) * vcount);
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vec3 *normals = malloc(sizeof(vec3) * vcount);
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for (i = 0; i < vccount; i++)
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{
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fi = i * dfi;
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sinfi = sin(fi);
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cosfi = cos(fi);
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vertices[i].x = cosfi;
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vertices[i].y = 0;
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vertices[i].z = sinfi;
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vertices[i + vccount].x = 0;
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vertices[i + vccount].y = 1;
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vertices[i + vccount].z = 0;
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normals[i + vccount].x = normals[i].x = cosfi * 0.71;
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normals[i + vccount].y = normals[i].y = 0.71;
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normals[i + vccount].z = normals[i].z = sinfi * 0.71;
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}
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_set_tape_indices(mesh, p);
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SET_VERTEX_DATA
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}
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static void
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_set_square(Eo *mesh)
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{
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eo_do(mesh, evas_3d_mesh_vertex_count_set(4),
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evas_3d_mesh_frame_add(0);
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evas_3d_mesh_frame_vertex_data_copy_set(0, EVAS_3D_VERTEX_POSITION,
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8 * sizeof(float), &square_vertices[0]);
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evas_3d_mesh_frame_vertex_data_copy_set(0, EVAS_3D_VERTEX_NORMAL,
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8 * sizeof(float), &square_vertices[3]),
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evas_3d_mesh_frame_vertex_data_copy_set(0, EVAS_3D_VERTEX_TEXCOORD,
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8 * sizeof(float), &square_vertices[6]);
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evas_3d_mesh_index_data_copy_set(EVAS_3D_INDEX_FORMAT_UNSIGNED_SHORT,
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6 , &square_indices[0]);
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evas_3d_mesh_vertex_assembly_set(EVAS_3D_VERTEX_ASSEMBLY_TRIANGLES);
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evas_3d_mesh_shade_mode_set(EVAS_3D_SHADE_MODE_PHONG));
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}
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static void
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_set_cube(Eo *mesh)
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{
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eo_do(mesh,
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evas_3d_mesh_vertex_count_set(24),
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evas_3d_mesh_frame_add(0),
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evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_POSITION,
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12 * sizeof(float), &cube_vertices[0]),
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evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_NORMAL,
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12 * sizeof(float), &cube_vertices[3]),
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evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_COLOR,
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12 * sizeof(float), &cube_vertices[6]),
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evas_3d_mesh_frame_vertex_data_set(0, EVAS_3D_VERTEX_TEXCOORD,
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12 * sizeof(float), &cube_vertices[10]),
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evas_3d_mesh_index_data_set(EVAS_3D_INDEX_FORMAT_UNSIGNED_SHORT,
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36, &cube_indices[0]),
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evas_3d_mesh_vertex_assembly_set(EVAS_3D_VERTEX_ASSEMBLY_TRIANGLES));
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}
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