void OBSBasicPreview::SnapStretchingToScreen(vec3 &tl, vec3 &br)
{
uint32_t stretchFlags = (uint32_t)stretchHandle;
vec3 newTL = GetTransformedPos(tl.x, tl.y, itemToScreen);
vec3 newTR = GetTransformedPos(br.x, tl.y, itemToScreen);
vec3 newBL = GetTransformedPos(tl.x, br.y, itemToScreen);
vec3 newBR = GetTransformedPos(br.x, br.y, itemToScreen);
vec3 boundingTL;
vec3 boundingBR;
vec3_copy(&boundingTL, &newTL);
vec3_min(&boundingTL, &boundingTL, &newTR);
vec3_min(&boundingTL, &boundingTL, &newBL);
vec3_min(&boundingTL, &boundingTL, &newBR);
vec3_copy(&boundingBR, &newTL);
vec3_max(&boundingBR, &boundingBR, &newTR);
vec3_max(&boundingBR, &boundingBR, &newBL);
vec3_max(&boundingBR, &boundingBR, &newBR);
vec3 offset = GetScreenSnapOffset(boundingTL, boundingBR);
vec3_add(&offset, &offset, &newTL);
vec3_transform(&offset, &offset, &screenToItem);
vec3_sub(&offset, &offset, &tl);
if (stretchFlags & ITEM_LEFT)
tl.x += offset.x;
else if (stretchFlags & ITEM_RIGHT)
br.x += offset.x;
if (stretchFlags & ITEM_TOP)
tl.y += offset.y;
else if (stretchFlags & ITEM_BOTTOM)
br.y += offset.y;
}
static bool AddItemBounds(obs_scene_t scene, obs_sceneitem_t item,
void *param)
{
SelectedItemBounds *data = reinterpret_cast<SelectedItemBounds*>(param);
if (!obs_sceneitem_selected(item))
return true;
matrix4 boxTransform;
obs_sceneitem_get_box_transform(item, &boxTransform);
vec3 t[4] = {
GetTransformedPos(0.0f, 0.0f, boxTransform),
GetTransformedPos(1.0f, 0.0f, boxTransform),
GetTransformedPos(0.0f, 1.0f, boxTransform),
GetTransformedPos(1.0f, 1.0f, boxTransform)
};
for (const vec3 &v : t) {
if (data->first) {
vec3_copy(&data->tl, &v);
vec3_copy(&data->br, &v);
data->first = false;
} else {
vec3_min(&data->tl, &data->tl, &v);
vec3_max(&data->br, &data->br, &v);
}
}
UNUSED_PARAMETER(scene);
return true;
}
void bounds_merge_point(struct bounds *dst, const struct bounds *b,
const struct vec3 *v)
{
vec3_min(&dst->min, &b->min, v);
vec3_max(&dst->max, &b->max, v);
}
void bounds_merge(struct bounds *dst, const struct bounds *b1,
const struct bounds *b2)
{
vec3_min(&dst->min, &b1->min, &b2->min);
vec3_max(&dst->max, &b1->max, &b2->max);
}
void render(msg_block_t *msg, rt_context_t *rtx, uint32_t *frame_buffer)
{
uint32_t *pixel;
float sy = rtx->sheight * 0.5f - rtx->ayc;
unsigned int y;
for (y = 0; y < rtx->height; y++)
{
uint32_t *src = frame_buffer + (y * SCALE + rtx->yoff) * msg->fbinfo.line_length / sizeof(uint32_t) + rtx->xoff;
pixel = src;
float sx = rtx->swidth * -0.5f;
unsigned int x;
for (x = 0; x < rtx->width; x++)
{
rtx->ray.pos = rtx->eye;
rtx->ray.dir = normalize(vec3_sub(vec3_set(sx, sy, 0.0f), rtx->eye));
vec3_t col = vec3_set(0.0f, 0.0f, 0.0f);
unsigned int j;
for (j = 0; j < MAXREF; j++)
{
trace_ray(rtx);
if (rtx->hit != NOHIT)
{
vec3_t p, n;
ray_t next;
p = vec3_add(rtx->ray.pos, vec3_scale(rtx->ray.dir, rtx->dist));
switch (rtx->obj[rtx->hit].type)
{
case SPHERE:
n = normalize(vec3_sub(p, rtx->obj[rtx->hit].pos));
break;
case PLANE:
n = rtx->obj[rtx->hit].norm;
break;
default:
break;
}
next.pos = vec3_add(p, vec3_scale(n, EPSILON));
vec3_t lv = vec3_sub(rtx->light.pos, p);
vec3_t l = normalize(lv);
next.dir = rtx->ray.dir;
int prev_hit_index = rtx->hit;
vec3_t hit_obj_col = rtx->obj[rtx->hit].col;
float diffuse = dot(n, l);
float specular = dot(rtx->ray.dir, vec3_sub(l, vec3_scale(n, 2.0f * diffuse)));
diffuse = max(diffuse, 0.0f);
specular = max(specular, 0.0f);
specular = power_spec(specular);
float s1 = 1.0f;
float s2 = 1.0f;
if (rtx->obj[rtx->hit].flag_shadow)
{
rtx->ray.dir = l;
rtx->ray.pos = next.pos;
trace_ray(rtx);
int shadow = (rtx->dist < norm(lv));
s1 = shadow ? 0.5f : s1;
s2 = shadow ? 0.0f : s2;
}
col = vec3_add(col, vec3_add(vec3_scale(rtx->light.col, specular * s2), vec3_scale(hit_obj_col, diffuse * s1)));
if (!rtx->obj[prev_hit_index].flag_refrect)
{
break;
}
rtx->ray.dir = vec3_sub(next.dir, vec3_scale(n, dot(next.dir, n) * 2.0f));
rtx->ray.pos = next.pos;
}
else
{
break;
}
}
col = vec3_min(vec3_max(col, 0.0f), 1.0f);
uint32_t col2 = 0xff000000 + ((unsigned int)(col.x * 255.0f) << 16) + ((unsigned int)(col.y * 255.0f) << 8) + (unsigned int)(col.z * 255.0f);
*pixel = col2;
#if SCALE > 1
*(pixel + 1) = col2;
#endif
#if SCALE > 3
*(pixel + 2) = col2;
*(pixel + 3) = col2;
#endif
pixel += SCALE;
sx += rtx->ax;
}
uint32_t size = rtx->width * SCALE;
unsigned int i;
for (i = 1; i < SCALE; i++)
{
uint32_t *dst = src + i * msg->fbinfo.line_length / sizeof(uint32_t);
unsigned int j;
for (j = 0; j < size; j++)
{
dst[j] = src[j];
}
}
sy -= rtx->ay;
}
}
