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renderer: Fix mirrored displays when transformed and preserve aspect ratio (#5697)

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* renderer: transform mirror buffer and preserve mirror aspect ratio

* renderer: render mirrors directly from offloadFB

* renderer: fix formatting

* renderer: use monitorMirrorFB again, but properly damage mirrors

* renderer: clean mirrors after reload and support cursor zoom mirroring
This commit is contained in:
Virt
2024-04-24 17:29:41 +02:00
committed by GitHub
parent 8aecd4f253
commit 9fe409800b
4 changed files with 64 additions and 21 deletions
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52
src/render/OpenGL.cpp
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@@ -152,6 +152,12 @@ bool CHyprOpenGLImpl::passRequiresIntrospection(CMonitor* pMonitor) {
if (m_RenderData.mouseZoomFactor != 1.0 || g_pHyprRenderer->m_bCrashingInProgress)
return true;
// mirrors should not be offloaded (as we then would basically copy the same data twice)
// yes, this breaks mirrors of mirrors
if (pMonitor->isMirror())
return false;
// monitors that are mirrored however must be offloaded because we cannot copy from output FBs
if (!pMonitor->mirrors.empty())
return true;
@@ -336,14 +342,10 @@ void CHyprOpenGLImpl::end() {
TRACY_GPU_ZONE("RenderEnd");
if (!m_RenderData.pMonitor->mirrors.empty() && !m_bFakeFrame)
saveBufferForMirror(); // save with original damage region
// end the render, copy the data to the WLR framebuffer
if (m_bOffloadedFramebuffer) {
m_RenderData.damage = m_RenderData.finalDamage;
m_RenderData.outFB->bind();
m_bEndFrame = true;
CBox monbox = {0, 0, m_RenderData.pMonitor->vecTransformedSize.x, m_RenderData.pMonitor->vecTransformedSize.y};
@@ -364,11 +366,16 @@ void CHyprOpenGLImpl::end() {
monbox.y = m_RenderData.pMonitor->vecTransformedSize.y - monbox.height;
}
m_bEndFrame = true;
m_bApplyFinalShader = !m_RenderData.blockScreenShader;
if (m_RenderData.mouseZoomUseMouse)
m_RenderData.useNearestNeighbor = true;
// copy the damaged areas into the mirror buffer
// we can't use the offloadFB for mirroring, as it contains artifacts from blurring
if (!m_RenderData.pMonitor->mirrors.empty() && !m_bFakeFrame)
saveBufferForMirror(&monbox);
m_RenderData.outFB->bind();
blend(false);
if (m_sFinalScreenShader.program < 1 && !g_pHyprRenderer->m_bCrashingInProgress)
@@ -1971,18 +1978,16 @@ void CHyprOpenGLImpl::renderRoundedShadow(CBox* box, int round, int range, const
glDisableVertexAttribArray(m_RenderData.pCurrentMonData->m_shSHADOW.texAttrib);
}
void CHyprOpenGLImpl::saveBufferForMirror() {
void CHyprOpenGLImpl::saveBufferForMirror(CBox* box) {
if (!m_RenderData.pCurrentMonData->monitorMirrorFB.isAllocated())
m_RenderData.pCurrentMonData->monitorMirrorFB.alloc(m_RenderData.pMonitor->vecPixelSize.x, m_RenderData.pMonitor->vecPixelSize.y, m_RenderData.pMonitor->drmFormat);
m_RenderData.pCurrentMonData->monitorMirrorFB.bind();
CBox monbox = {0, 0, m_RenderData.pMonitor->vecPixelSize.x, m_RenderData.pMonitor->vecPixelSize.y};
blend(false);
renderTexture(m_RenderData.currentFB->m_cTex, &monbox, 1.f, 0, false, false);
renderTexture(m_RenderData.currentFB->m_cTex, box, 1.f, 0, false, false);
blend(true);
@@ -1990,14 +1995,37 @@ void CHyprOpenGLImpl::saveBufferForMirror() {
}
void CHyprOpenGLImpl::renderMirrored() {
CBox monbox = {0, 0, m_RenderData.pMonitor->vecPixelSize.x, m_RenderData.pMonitor->vecPixelSize.y};
const auto PFB = &m_mMonitorRenderResources[m_RenderData.pMonitor->pMirrorOf].monitorMirrorFB;
auto monitor = m_RenderData.pMonitor;
auto mirrored = monitor->pMirrorOf;
double scale = std::min(monitor->vecTransformedSize.x / mirrored->vecTransformedSize.x, monitor->vecTransformedSize.y / mirrored->vecTransformedSize.y);
CBox monbox = {0, 0, mirrored->vecTransformedSize.x * scale, mirrored->vecTransformedSize.y * scale};
// transform box as it will be drawn on a transformed projection
monbox.transform(mirrored->transform, mirrored->vecTransformedSize.x * scale, mirrored->vecTransformedSize.y * scale);
monbox.x = (monitor->vecTransformedSize.x - monbox.w) / 2;
monbox.y = (monitor->vecTransformedSize.y - monbox.h) / 2;
const auto PFB = &m_mMonitorRenderResources[mirrored].monitorMirrorFB;
if (!PFB->isAllocated() || PFB->m_cTex.m_iTexID <= 0)
return;
// replace monitor projection to undo the mirrored monitor's projection
wlr_matrix_identity(monitor->projMatrix.data());
wlr_matrix_translate(monitor->projMatrix.data(), monitor->vecPixelSize.x / 2.0, monitor->vecPixelSize.y / 2.0);
wlr_matrix_transform(monitor->projMatrix.data(), monitor->transform);
wlr_matrix_transform(monitor->projMatrix.data(), wlr_output_transform_invert(mirrored->transform));
wlr_matrix_translate(monitor->projMatrix.data(), -monitor->vecTransformedSize.x / 2.0, -monitor->vecTransformedSize.y / 2.0);
// clear stuff outside of mirrored area (e.g. when changing to mirrored)
clear(CColor(0, 0, 0, 0));
renderTexture(PFB->m_cTex, &monbox, 1.f, 0, false, false);
// reset matrix for further drawing
monitor->updateMatrix();
}
void CHyprOpenGLImpl::renderSplash(cairo_t* const CAIRO, cairo_surface_t* const CAIROSURFACE, double offsetY, const Vector2D& size) {