diff options
Diffstat (limited to 'prge_model.c')
| -rw-r--r-- | prge_model.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/prge_model.c b/prge_model.c deleted file mode 100644 index e2dc55f..0000000 --- a/prge_model.c +++ /dev/null @@ -1,187 +0,0 @@ -Vertex init_vert(V3 pos, V2 texc) -{ - Vertex v = { - .pos = pos, - .texc = texc, - }; - return v; -} - -void init_mesh_buffers(Mesh *mesh) -{ - ASSERT(mesh->verts); - ASSERT(mesh->nverts > 0); - - U32 sverts, - sindices; - - sverts = mesh->nverts*sizeof(Vertex); - sindices = mesh->nindices*sizeof(U32); - - glGenVertexArrays(1, &mesh->vao); - glBindVertexArray(mesh->vao); - - glGenBuffers(1, &mesh->vbo); - glBindBuffer(GL_ARRAY_BUFFER, mesh->vbo); - glBufferData(GL_ARRAY_BUFFER, sverts, - mesh->verts, GL_STATIC_DRAW); - - if (mesh->indices && (mesh->nindices > 0)) { - glGenBuffers(1, &mesh->ebo); - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh->ebo); - glBufferData(GL_ELEMENT_ARRAY_BUFFER, sindices, - mesh->indices, GL_STATIC_DRAW); - } - - glEnableVertexAttribArray(PRGE_SHADER_POS_LOC); - glVertexAttribPointer(PRGE_SHADER_POS_LOC, 3, - GL_FLOAT, GL_FALSE, sizeof(Vertex), - (void *)OFFSETOF(Vertex, pos)); - - glEnableVertexAttribArray(PRGE_SHADER_TEXC_LOC); - glVertexAttribPointer(PRGE_SHADER_TEXC_LOC, 2, - GL_FLOAT, GL_FALSE, sizeof(Vertex), - (void *)OFFSETOF(Vertex, texc)); - - glBindVertexArray(0); -} - -Mesh init_mesh(V3 origin, V3 rotate, S32 nverts, Vertex *verts, S32 nindices, U32 *indices) -{ - Mesh mesh; - - MEM0STRUCT(&mesh); - - mesh.origin = origin; - mesh.rotate = rotate; - - mesh.verts = verts; - mesh.nverts = nverts; - - mesh.indices = indices; - mesh.nindices = nindices; - - init_mesh_buffers(&mesh); - - return mesh; -} - -void clear_mesh(Mesh *mesh) -{ - glBindVertexArray(mesh->vao); - glDisableVertexAttribArray(PRGE_SHADER_POS_LOC); - - glBindVertexArray(0); - glDeleteVertexArrays(1, &mesh->vao); - - glBindBuffer(GL_ARRAY_BUFFER, 0); - glDeleteBuffers(1, &mesh->vbo); - - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); - glDeleteBuffers(1, &mesh->ebo); -} - -void add_mesh_texture(Mesh *mesh, Texture texture) -{ - if (mesh->ntextures+1 >= PRGE_MAX_TEXTURES) { - sys_printf("[WARNING] : Texture : \"%s\" : limit\n", texture.name); - return; - } - mesh->textures[mesh->ntextures++] = texture; -} - -Mesh gen_quad(Arena *arena, V3 origin, V3 rotate, F32 w, F32 h) -{ - Mesh mesh; - - S32 nverts; - Vertex *verts; - - S32 nindices; - U32 *indices; - - ASSERT(w > 0); - ASSERT(h > 0); - - nverts = 4; - verts = push_arena(arena, nverts*sizeof(Vertex)); - verts[0] = init_vert(v3(-w/2.0f, -h/2.0f, 0.0f), v2(0.0f, 0.0f)); - verts[1] = init_vert(v3(-w/2.0f, h/2.0f, 0.0f), v2(0.0f, h)); - verts[2] = init_vert(v3(w/2.0f, -h/2.0f, 0.0f), v2(w, 0.0f)); - verts[3] = init_vert(v3(w/2.0f, h/2.0f, 0.0f), v2(w, h)); - - nindices = 6; - indices = push_arena(arena, nindices*sizeof(U32)); - indices[0] = 0; - indices[1] = 1; - indices[2] = 3; - indices[3] = 0; - indices[4] = 2; - indices[5] = 3; - - mesh = init_mesh(origin, rotate, nverts, verts, nindices, indices); - - return mesh; -} - -Mesh gen_circle(Arena *arena, V3 origin, V3 rotate, F32 r, S32 nverts) -{ - Mesh mesh; - - Vertex *verts; - - S32 nindices; - U32 *indices; - - F32 angle, dangle; - - S32 i, vi; - - if (nverts < 3) - nverts = 3; - - verts = push_arena(arena, nverts*sizeof(Vertex)); - - dangle = 2*F32PI/(F32)nverts; - for (i = 0, angle = 0.0f; i < nverts; i++, angle += dangle) - verts[i] = init_vert(v3(f32cos(angle)*r, f32sin(angle)*r, 0.0f), V2_ZERO); - - nindices = nverts*3; - indices = push_arena(arena, nindices*sizeof(U32)); - for (i = 0, vi = 1; i < nindices; i += 3, vi++) { - indices[i] = 0; - indices[i+1] = vi; - indices[i+2] = (((vi+1) == (nverts)) ? 1 : (vi+1)); - } - - mesh = init_mesh(origin, rotate, nverts, verts, nindices, indices); - - return mesh; -} - -Model init_model(V3 origin, V3 rotate, S32 nmeshes, Mesh *meshes) -{ - Model model = { - .origin = origin, - .rotate = rotate, - .nmeshes = nmeshes, - .meshes = meshes, - }; - return model; -} - -Model load_model(V3 origin, V3 rotate, const char *fname) -{ - Model model; - - MEM0STRUCT(&model); - - model.origin = origin; - model.rotate = rotate; - - sys_printf("[INFO] : PRGE : Trying to load %s\n", fname); - - /* TODO(pryazha): Load models with assimp? */ - - return model; -} |