void obs_source_process_filter(obs_source_t filter, effect_t effect,
uint32_t width, uint32_t height, enum gs_color_format format,
enum allow_direct_render allow_direct)
{
obs_source_t target, parent;
uint32_t target_flags, parent_flags;
int cx, cy;
bool use_matrix, expects_def, can_directly;
if (!filter) return;
target = obs_filter_gettarget(filter);
parent = obs_filter_getparent(filter);
target_flags = target->info.output_flags;
parent_flags = parent->info.output_flags;
cx = obs_source_getwidth(target);
cy = obs_source_getheight(target);
use_matrix = !!(target_flags & OBS_SOURCE_COLOR_MATRIX);
expects_def = !(parent_flags & OBS_SOURCE_CUSTOM_DRAW);
can_directly = allow_direct == ALLOW_DIRECT_RENDERING;
/* if the parent does not use any custom effects, and this is the last
* filter in the chain for the parent, then render the parent directly
* using the filter effect instead of rendering to texture to reduce
* the total number of passes */
if (can_directly && expects_def && target == parent) {
render_filter_bypass(target, effect, use_matrix);
return;
}
if (!filter->filter_texrender)
filter->filter_texrender = texrender_create(format,
GS_ZS_NONE);
if (texrender_begin(filter->filter_texrender, cx, cy)) {
gs_ortho(0.0f, (float)cx, 0.0f, (float)cy, -100.0f, 100.0f);
if (expects_def && parent == target)
obs_source_default_render(parent, use_matrix);
else
obs_source_video_render(target);
texrender_end(filter->filter_texrender);
}
/* --------------------------- */
render_filter_tex(texrender_gettexture(filter->filter_texrender),
effect, width, height, use_matrix);
}
static vec2 GetItemSize(obs_sceneitem_t item)
{
obs_bounds_type boundsType = obs_sceneitem_get_bounds_type(item);
vec2 size;
if (boundsType != OBS_BOUNDS_NONE) {
obs_sceneitem_get_bounds(item, &size);
} else {
obs_source_t source = obs_sceneitem_getsource(item);
vec2 scale;
obs_sceneitem_getscale(item, &scale);
size.x = float(obs_source_getwidth(source)) * scale.x;
size.y = float(obs_source_getheight(source)) * scale.y;
}
return size;
}
void obs_source_process_filter(obs_source_t filter, texrender_t texrender,
effect_t effect, uint32_t width, uint32_t height,
enum allow_direct_render allow_direct)
{
obs_source_t target = obs_filter_gettarget(filter);
obs_source_t parent = obs_filter_getparent(filter);
uint32_t target_flags = obs_source_get_output_flags(target);
uint32_t parent_flags = obs_source_get_output_flags(parent);
int cx = obs_source_getwidth(target);
int cy = obs_source_getheight(target);
bool yuv = (target_flags & SOURCE_YUV) != 0;
bool expects_def = (parent_flags & SOURCE_DEFAULT_EFFECT) != 0;
bool can_directly = allow_direct == ALLOW_DIRECT_RENDERING;
/* if the parent does not use any custom effects, and this is the last
* filter in the chain for the parent, then render the parent directly
* using the filter effect instead of rendering to texture to reduce
* the total number of passes */
if (can_directly && expects_def && target == parent) {
render_filter_bypass(target, effect, width, height, yuv);
return;
}
if (texrender_begin(texrender, cx, cy)) {
gs_ortho(0.0f, (float)cx, 0.0f, (float)cy, -100.0f, 100.0f);
if (expects_def && parent == target)
obs_source_default_render(parent, yuv);
else
obs_source_video_render(target);
texrender_end(texrender);
}
/* --------------------------- */
render_filter_tex(texrender_gettexture(texrender), effect,
width, height, yuv);
}
void OBSBasicPreview::StretchItem(const vec2 &pos)
{
Qt::KeyboardModifiers modifiers = QGuiApplication::keyboardModifiers();
obs_bounds_type boundsType = obs_sceneitem_get_bounds_type(stretchItem);
uint32_t stretchFlags = (uint32_t)stretchHandle;
bool shiftDown = (modifiers & Qt::ShiftModifier);
vec3 tl, br, pos3;
vec3_zero(&tl);
vec3_set(&br, stretchItemSize.x, stretchItemSize.y, 0.0f);
vec3_set(&pos3, pos.x, pos.y, 0.0f);
vec3_transform(&pos3, &pos3, &screenToItem);
if (stretchFlags & ITEM_LEFT)
tl.x = pos3.x;
else if (stretchFlags & ITEM_RIGHT)
br.x = pos3.x;
if (stretchFlags & ITEM_TOP)
tl.y = pos3.y;
else if (stretchFlags & ITEM_BOTTOM)
br.y = pos3.y;
if (!(modifiers & Qt::ControlModifier))
SnapStretchingToScreen(tl, br);
obs_source_t source = obs_sceneitem_getsource(stretchItem);
vec2 baseSize;
vec2_set(&baseSize,
float(obs_source_getwidth(source)),
float(obs_source_getheight(source)));
vec2 size;
vec2_set(&size,br. x - tl.x, br.y - tl.y);
if (boundsType != OBS_BOUNDS_NONE) {
if (shiftDown)
ClampAspect(tl, br, size, baseSize);
if (tl.x > br.x) std::swap(tl.x, br.x);
if (tl.y > br.y) std::swap(tl.y, br.y);
vec2_abs(&size, &size);
obs_sceneitem_set_bounds(stretchItem, &size);
} else {
if (!shiftDown)
ClampAspect(tl, br, size, baseSize);
vec2_div(&size, &size, &baseSize);
obs_sceneitem_setscale(stretchItem, &size);
}
pos3 = CalculateStretchPos(tl, br);
vec3_transform(&pos3, &pos3, &itemToScreen);
vec2 newPos;
vec2_set(&newPos, std::round(pos3.x), std::round(pos3.y));
obs_sceneitem_setpos(stretchItem, &newPos);
}