vertbuffer_t gs_rendersave(void)
{
graphics_t graphics = thread_graphics;
size_t num_tex, i;
if (graphics->using_immediate)
return NULL;
if (!graphics->vbd->num) {
vbdata_destroy(graphics->vbd);
return NULL;
}
for (num_tex = 0; num_tex < 16; num_tex++) {
if (!graphics->texverts[num_tex].num)
break;
}
graphics->vbd->points = graphics->verts.array;
graphics->vbd->normals = graphics->norms.array;
graphics->vbd->colors = graphics->colors.array;
graphics->vbd->num = graphics->verts.num;
graphics->vbd->num_tex = num_tex;
graphics->vbd->tvarray = bmalloc(sizeof(struct tvertarray) * num_tex);
for (i = 0; i < num_tex; i++) {
graphics->vbd->tvarray[i].width = 2;
graphics->vbd->tvarray[i].array = graphics->texverts[i].array;
}
reset_immediate_arrays(graphics);
return gs_create_vertexbuffer(graphics->vbd, 0);
}
void vertexbuffer_destroy(vertbuffer_t vb)
{
if (vb) {
if (vb->vertex_buffer)
gl_delete_buffers(1, &vb->vertex_buffer);
if (vb->normal_buffer)
gl_delete_buffers(1, &vb->normal_buffer);
if (vb->tangent_buffer)
gl_delete_buffers(1, &vb->tangent_buffer);
if (vb->color_buffer)
gl_delete_buffers(1, &vb->color_buffer);
if (vb->uv_buffers.num)
gl_delete_buffers((GLsizei)vb->uv_buffers.num,
vb->uv_buffers.array);
if (vb->vao)
gl_delete_vertex_arrays(1, &vb->vao);
da_free(vb->uv_sizes);
da_free(vb->uv_buffers);
vbdata_destroy(vb->data);
bfree(vb);
}
}
void gs_renderstop(enum gs_draw_mode mode)
{
graphics_t graphics = thread_graphics;
size_t i, num = graphics->verts.num;
if (!num) {
if (!graphics->using_immediate) {
da_free(graphics->verts);
da_free(graphics->norms);
da_free(graphics->colors);
for (i = 0; i < 16; i++)
da_free(graphics->texverts[i]);
vbdata_destroy(graphics->vbd);
}
return;
}
if (graphics->norms.num &&
(graphics->norms.num != graphics->verts.num)) {
blog(LOG_WARNING, "gs_renderstop: normal count does "
"not match vertex count");
num = min_size(num, graphics->norms.num);
}
if (graphics->colors.num &&
(graphics->colors.num != graphics->verts.num)) {
blog(LOG_WARNING, "gs_renderstop: color count does "
"not match vertex count");
num = min_size(num, graphics->colors.num);
}
if (graphics->texverts[0].num &&
(graphics->texverts[0].num != graphics->verts.num)) {
blog(LOG_WARNING, "gs_renderstop: texture vertex count does "
"not match vertex count");
num = min_size(num, graphics->texverts[0].num);
}
if (graphics->using_immediate) {
vertexbuffer_flush(graphics->immediate_vertbuffer, false);
gs_load_vertexbuffer(graphics->immediate_vertbuffer);
gs_load_indexbuffer(NULL);
gs_draw(mode, 0, (uint32_t)num);
reset_immediate_arrays(graphics);
} else {
vertbuffer_t vb = gs_rendersave();
gs_load_vertexbuffer(vb);
gs_load_indexbuffer(NULL);
gs_draw(mode, 0, 0);
vertexbuffer_destroy(vb);
}
graphics->vbd = NULL;
}
static bool create_buffers(struct gs_vertex_buffer *vb)
{
GLenum usage = vb->dynamic ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW;
size_t i;
if (!gl_create_buffer(GL_ARRAY_BUFFER, &vb->vertex_buffer,
vb->data->num * sizeof(struct vec3),
vb->data->points, usage))
return false;
if (vb->data->normals) {
if (!gl_create_buffer(GL_ARRAY_BUFFER, &vb->normal_buffer,
vb->data->num * sizeof(struct vec3),
vb->data->normals, usage))
return false;
}
if (vb->data->tangents) {
if (!gl_create_buffer(GL_ARRAY_BUFFER, &vb->tangent_buffer,
vb->data->num * sizeof(struct vec3),
vb->data->tangents, usage))
return false;
}
if (vb->data->colors) {
if (!gl_create_buffer(GL_ARRAY_BUFFER, &vb->color_buffer,
vb->data->num * sizeof(uint32_t),
vb->data->colors, usage))
return false;
}
da_reserve(vb->uv_buffers, vb->data->num_tex);
da_reserve(vb->uv_sizes, vb->data->num_tex);
for (i = 0; i < vb->data->num_tex; i++) {
GLuint tex_buffer;
struct tvertarray *tv = vb->data->tvarray+i;
size_t size = vb->data->num * sizeof(float) * tv->width;
if (!gl_create_buffer(GL_ARRAY_BUFFER, &tex_buffer, size,
tv->array, usage))
return false;
da_push_back(vb->uv_buffers, &tex_buffer);
da_push_back(vb->uv_sizes, &tv->width);
}
if (!vb->dynamic) {
vbdata_destroy(vb->data);
vb->data = NULL;
}
if (!gl_gen_vertex_arrays(1, &vb->vao))
return false;
return true;
}