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#include "Pass.hpp"
#include "../OpenGL.hpp"
#include <algorithm>
#include <ranges>
#include "../../config/ConfigValue.hpp"
bool CRenderPass::empty() const {
return false;
}
bool CRenderPass::single() const {
return m_vPassElements.size() == 1;
}
bool CRenderPass::needsIntrospection() const {
return true;
}
void CRenderPass::add(SP<IPassElement> el) {
m_vPassElements.emplace_back(makeShared<SPassElementData>(CRegion{}, el));
}
void CRenderPass::simplify() {
static auto PDEBUGPASS = CConfigValue<Hyprlang::INT>("debug:pass");
// TODO: use precompute blur for instances where there is nothing in between
// if there is live blur, we need to NOT occlude any area where it will be influenced
const auto WILLBLUR = std::ranges::any_of(m_vPassElements, [](const auto& el) { return el->element->needsLiveBlur(); });
CRegion newDamage = damage.copy().intersect(CBox{{}, g_pHyprOpenGL->m_RenderData.pMonitor->vecTransformedSize});
for (auto& el : m_vPassElements | std::views::reverse) {
if (newDamage.empty()) {
el->discard = true;
continue;
}
el->elementDamage = newDamage;
auto bb1 = el->element->boundingBox();
if (!bb1)
continue;
auto bb = bb1->scale(g_pHyprOpenGL->m_RenderData.pMonitor->scale);
// drop if empty
if (CRegion copy = newDamage.copy(); copy.intersect(bb).empty()) {
el->discard = true;
continue;
}
auto opaque = el->element->opaqueRegion();
if (!opaque.empty()) {
opaque.scale(g_pHyprOpenGL->m_RenderData.pMonitor->scale);
// if this intersects the liveBlur region, allow live blur to operate correctly.
// do not occlude a border near it.
if (WILLBLUR) {
CRegion liveBlurRegion;
for (auto& el2 : m_vPassElements) {
// if we reach self, no problem, we can break.
// if the blur is above us, we don't care, it will work fine.
if (el2 == el)
break;
if (!el2->element->needsLiveBlur())
continue;
const auto BB = el2->element->boundingBox();
RASSERT(BB, "No bounding box for an element with live blur is illegal");
liveBlurRegion.add(*BB);
}
if (auto infringement = opaque.copy().intersect(liveBlurRegion); !infringement.empty()) {
// eh, this is not the correct solution, but it will do...
// TODO: is this *easily* fixable?
opaque.subtract(infringement.expand(oneBlurRadius()));
}
}
newDamage.subtract(opaque);
if (*PDEBUGPASS)
occludedRegion.add(opaque);
}
}
if (*PDEBUGPASS) {
for (auto& el2 : m_vPassElements) {
if (!el2->element->needsLiveBlur())
continue;
const auto BB = el2->element->boundingBox();
RASSERT(BB, "No bounding box for an element with live blur is illegal");
totalLiveBlurRegion.add(*BB);
}
}
}
void CRenderPass::clear() {
m_vPassElements.clear();
}
CRegion CRenderPass::render(const CRegion& damage_) {
static auto PDEBUGPASS = CConfigValue<Hyprlang::INT>("debug:pass");
const auto WILLBLUR = std::ranges::any_of(m_vPassElements, [](const auto& el) { return el->element->needsLiveBlur(); });
damage = *PDEBUGPASS ? CRegion{CBox{{}, {INT32_MAX, INT32_MAX}}} : damage_.copy();
occludedRegion = CRegion{};
totalLiveBlurRegion = CRegion{};
if (damage.empty()) {
g_pHyprOpenGL->m_RenderData.damage = damage;
g_pHyprOpenGL->m_RenderData.finalDamage = damage;
return damage;
}
if (WILLBLUR) {
// combine blur regions into one that will be expanded
CRegion blurRegion;
for (auto& el : m_vPassElements) {
if (!el->element->needsLiveBlur())
continue;
const auto BB = el->element->boundingBox();
RASSERT(BB, "No bounding box for an element with live blur is illegal");
blurRegion.add(*BB);
}
blurRegion.intersect(damage).expand(oneBlurRadius());
g_pHyprOpenGL->m_RenderData.finalDamage = blurRegion.copy().add(damage);
// FIXME: why does this break on * 1.F ?
// used to work when we expand all the damage... I think? Well, before pass.
// moving a window over blur shows the edges being wonk.
blurRegion.expand(oneBlurRadius() * 1.5F);
damage = blurRegion.copy().add(damage);
} else
g_pHyprOpenGL->m_RenderData.finalDamage = damage;
if (std::ranges::any_of(m_vPassElements, [](const auto& el) { return el->element->disableSimplification(); })) {
for (auto& el : m_vPassElements) {
el->elementDamage = damage;
}
} else
simplify();
g_pHyprOpenGL->m_RenderData.pCurrentMonData->blurFBShouldRender = std::ranges::any_of(m_vPassElements, [](const auto& el) { return el->element->needsPrecomputeBlur(); });
if (m_vPassElements.empty())
return {};
for (auto& el : m_vPassElements) {
if (el->discard) {
el->element->discard();
continue;
}
g_pHyprOpenGL->m_RenderData.damage = el->elementDamage;
el->element->draw(el->elementDamage);
}
if (*PDEBUGPASS) {
CBox monbox = {{}, g_pHyprOpenGL->m_RenderData.pMonitor->vecTransformedSize};
g_pHyprOpenGL->renderRectWithDamage(&monbox, CHyprColor{1.F, 0.1F, 0.1F, 0.5F}, occludedRegion);
g_pHyprOpenGL->renderRectWithDamage(&monbox, CHyprColor{0.1F, 1.F, 0.1F, 0.5F}, totalLiveBlurRegion);
}
g_pHyprOpenGL->m_RenderData.damage = damage;
return damage;
}
float CRenderPass::oneBlurRadius() {
// TODO: is this exact range correct?
static auto PBLURSIZE = CConfigValue<Hyprlang::INT>("decoration:blur:size");
static auto PBLURPASSES = CConfigValue<Hyprlang::INT>("decoration:blur:passes");
return *PBLURPASSES > 10 ? pow(2, 15) : std::clamp(*PBLURSIZE, (int64_t)1, (int64_t)40) * pow(2, *PBLURPASSES); // is this 2^pass? I don't know but it works... I think.
}
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