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pointer: add drm dumb buffers for cursors (#8399)

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---------

Co-authored-by: Mihai Fufezan <mihai@fufexan.net>
This commit is contained in:
Vaxry
2024-11-14 20:15:51 +00:00
committed by GitHub
parent 3fb47372b7
commit 20031cea92
8 changed files with 142 additions and 79 deletions
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132
src/managers/PointerManager.cpp
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@@ -375,6 +375,8 @@ SP<Aquamarine::IBuffer> CPointerManager::renderHWCursorBuffer(SP<CPointerManager
auto maxSize = state->monitor->output->cursorPlaneSize();
auto const& cursorSize = currentCursorImage.size;
static auto PDUMB = CConfigValue<Hyprlang::INT>("cursor:use_cpu_buffer");
if (maxSize == Vector2D{})
return nullptr;
@@ -386,10 +388,23 @@ SP<Aquamarine::IBuffer> CPointerManager::renderHWCursorBuffer(SP<CPointerManager
} else
maxSize = cursorSize;
if (!state->monitor->cursorSwapchain || maxSize != state->monitor->cursorSwapchain->currentOptions().size) {
if (!state->monitor->cursorSwapchain || maxSize != state->monitor->cursorSwapchain->currentOptions().size ||
*PDUMB != (state->monitor->cursorSwapchain->getAllocator()->type() != Aquamarine::AQ_ALLOCATOR_TYPE_GBM)) {
if (!state->monitor->cursorSwapchain)
state->monitor->cursorSwapchain = Aquamarine::CSwapchain::create(state->monitor->output->getBackend()->preferredAllocator(), state->monitor->output->getBackend());
if (!state->monitor->cursorSwapchain || *PDUMB != (state->monitor->cursorSwapchain->getAllocator()->type() != Aquamarine::AQ_ALLOCATOR_TYPE_GBM)) {
auto allocator = state->monitor->output->getBackend()->preferredAllocator();
if (*PDUMB) {
for (const auto& a : state->monitor->output->getBackend()->getAllocators()) {
if (a->type() == Aquamarine::AQ_ALLOCATOR_TYPE_DRM_DUMB) {
allocator = a;
break;
}
}
}
state->monitor->cursorSwapchain = Aquamarine::CSwapchain::create(allocator, state->monitor->output->getBackend());
}
auto options = state->monitor->cursorSwapchain->currentOptions();
options.size = maxSize;
@@ -397,8 +412,10 @@ SP<Aquamarine::IBuffer> CPointerManager::renderHWCursorBuffer(SP<CPointerManager
options.scanout = true;
options.cursor = true;
options.multigpu = state->monitor->output->getBackend()->preferredAllocator()->drmFD() != g_pCompositor->m_iDRMFD;
// We do not set the format. If it's unset (DRM_FORMAT_INVALID) then the swapchain will pick for us,
// We do not set the format (unless shm). If it's unset (DRM_FORMAT_INVALID) then the swapchain will pick for us,
// but if it's set, we don't wanna change it.
if (*PDUMB)
options.format = DRM_FORMAT_ARGB8888;
if (!state->monitor->cursorSwapchain->reconfigure(options)) {
Debug::log(TRACE, "Failed to reconfigure cursor swapchain");
@@ -420,60 +437,69 @@ SP<Aquamarine::IBuffer> CPointerManager::renderHWCursorBuffer(SP<CPointerManager
return nullptr;
}
if (*PDUMB) {
// get the texture data if available.
auto texData = texture->dataCopy();
if (texData.empty()) {
if (currentCursorImage.surface && currentCursorImage.surface->resource()->role->role() == SURFACE_ROLE_CURSOR) {
const auto SURFACE = currentCursorImage.surface->resource();
auto& shmBuffer = CCursorSurfaceRole::cursorPixelData(SURFACE);
bool flipRB = false;
if (SURFACE->current.texture) {
Debug::log(TRACE, "Cursor CPU surface: format {}, expecting AR24", FormatUtils::drmFormatName(SURFACE->current.texture->m_iDrmFormat));
if (SURFACE->current.texture->m_iDrmFormat == DRM_FORMAT_ABGR8888) {
Debug::log(TRACE, "Cursor CPU surface format AB24, will flip. WARNING: this will break on big endian!");
flipRB = true;
} else if (SURFACE->current.texture->m_iDrmFormat != DRM_FORMAT_ARGB8888) {
Debug::log(TRACE, "Cursor CPU surface format rejected, falling back to sw");
return nullptr;
}
}
if (shmBuffer.data())
texData = shmBuffer;
else {
texData.resize(texture->m_vSize.x * 4 * texture->m_vSize.y);
memset(texData.data(), 0x00, texData.size());
}
if (flipRB) {
for (size_t i = 0; i < shmBuffer.size(); i += 4) {
std::swap(shmBuffer.at(i), shmBuffer.at(i + 2)); // little-endian!!!!!!
}
}
} else {
Debug::log(TRACE, "Cannot use dumb copy on dmabuf cursor buffers");
return nullptr;
}
}
// then, we just yeet it into the dumb buffer
auto [data, fmt, size] = buf->beginDataPtr(0);
memset(data, 0, size);
if (buf->dmabuf().size.x > texture->m_vSize.x) {
size_t STRIDE = 4 * texture->m_vSize.x;
for (int i = 0; i < texture->m_vSize.y; i++)
memcpy(data + i * buf->dmabuf().strides[0], texData.data() + i * STRIDE, STRIDE);
} else
memcpy(data, texData.data(), std::min(size, texData.size()));
buf->endDataPtr();
return buf;
}
g_pHyprRenderer->makeEGLCurrent();
g_pHyprOpenGL->m_RenderData.pMonitor = state->monitor;
auto RBO = g_pHyprRenderer->getOrCreateRenderbuffer(buf, state->monitor->cursorSwapchain->currentOptions().format);
if (!RBO) {
Debug::log(TRACE, "Failed to create cursor RB with format {}, mod {}", buf->dmabuf().format, buf->dmabuf().modifier);
static auto PDUMB = CConfigValue<Hyprlang::INT>("cursor:allow_dumb_copy");
if (!*PDUMB)
return nullptr;
auto bufData = buf->beginDataPtr(0);
auto bufPtr = std::get<0>(bufData);
// clear buffer
memset(bufPtr, 0, std::get<2>(bufData));
if (currentCursorImage.pBuffer) {
auto texAttrs = currentCursorImage.pBuffer->shm();
if (!texAttrs.success) {
Debug::log(TRACE, "Cannot use dumb copy on dmabuf cursor buffers");
return nullptr;
}
auto texData = currentCursorImage.pBuffer->beginDataPtr(GBM_BO_TRANSFER_WRITE);
auto texPtr = std::get<0>(texData);
Debug::log(TRACE, "cursor texture {}x{} {} {} {}", texAttrs.size.x, texAttrs.size.y, (void*)texPtr, texAttrs.format, texAttrs.stride);
// copy cursor texture
for (int i = 0; i < texAttrs.size.y; i++)
memcpy(bufPtr + i * buf->dmabuf().strides[0], texPtr + i * texAttrs.stride, texAttrs.stride);
} else if (currentCursorImage.surface && currentCursorImage.surface->resource()->role->role() == SURFACE_ROLE_CURSOR) {
const auto SURFACE = currentCursorImage.surface->resource();
auto& shmBuffer = CCursorSurfaceRole::cursorPixelData(SURFACE);
Debug::log(TRACE, "cursor texture pixel data length: {}B", shmBuffer.size());
if (shmBuffer.data()) {
// copy cursor texture
// assume format is 32bpp
size_t STRIDE = 4 * SURFACE->current.bufferSize.x;
for (int i = 0; i < SURFACE->current.bufferSize.y; i++)
memcpy(bufPtr + i * buf->dmabuf().strides[0], shmBuffer.data() + i * STRIDE, STRIDE);
} else {
// if there is no data, hide the cursor
memset(bufPtr, '\0', buf->size.x * buf->size.y * 4 /* assume 32bpp */);
}
} else {
Debug::log(TRACE, "Unsupported cursor buffer/surface, falling back to sw (can't dumb copy)");
return nullptr;
}
buf->endDataPtr();
return buf;
return nullptr;
}
RBO->bind();
@@ -773,7 +799,7 @@ SP<CTexture> CPointerManager::getCurrentCursorTexture() {
if (currentCursorImage.pBuffer) {
if (!currentCursorImage.bufferTex)
currentCursorImage.bufferTex = makeShared<CTexture>(currentCursorImage.pBuffer);
currentCursorImage.bufferTex = makeShared<CTexture>(currentCursorImage.pBuffer, true);
return currentCursorImage.bufferTex;
}