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Merge "minui: Add support for multiple connectors" am: 80a9dcad35 am: f8d4273171 am: b1090a47f4

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Original change: https://android-review.googlesource.com/c/platform/bootable/recovery/+/1883848

Change-Id: I6600a3bc845c5de00f26ea74aeb65c82a1b8076a
This commit is contained in:
Treehugger Robot 2022-01-26 06:26:22 +00:00 committed by Automerger Merge Worker
commit 530cd6d0a7
7 changed files with 159 additions and 82 deletions
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4
minui/graphics.cpp
View file

@ -450,6 +450,10 @@ void gr_fb_blank(bool blank) {
gr_backend->Blank(blank);
}
void gr_fb_blank(bool blank, int index) {
gr_backend->Blank(blank, static_cast<MinuiBackend::DrmConnector>(index));
}
void gr_rotate(GRRotation rot) {
rotation = rot;
}

11
minui/graphics.h
View file

@ -21,6 +21,12 @@
class MinuiBackend {
public:
enum DrmConnector {
DRM_MAIN = 0,
DRM_SEC,
DRM_MAX,
};
// Initializes the backend and returns a GRSurface* to draw into.
virtual GRSurface* Init() = 0;
@ -28,9 +34,12 @@ class MinuiBackend {
// be displayed, and returns a new drawing surface.
virtual GRSurface* Flip() = 0;
// Blank (or unblank) the screen.
// Blank (or unblank) the default screen.
virtual void Blank(bool) = 0;
// Blank (or unblank) the specific screen.
virtual void Blank(bool blank, DrmConnector index) = 0;
// Device cleanup when drawing is done.
virtual ~MinuiBackend() {};
};

173
minui/graphics_drm.cpp
View file

@ -153,22 +153,50 @@ void MinuiBackendDrm::DrmDisableCrtc(int drm_fd, drmModeCrtc* crtc) {
}
bool MinuiBackendDrm::DrmEnableCrtc(int drm_fd, drmModeCrtc* crtc,
const std::unique_ptr<GRSurfaceDrm>& surface) {
const std::unique_ptr<GRSurfaceDrm>& surface,
uint32_t* connector_id) {
if (drmModeSetCrtc(drm_fd, crtc->crtc_id, surface->fb_id, 0, 0, // x,y
&main_monitor_connector->connector_id,
1, // connector_count
&main_monitor_crtc->mode) != 0) {
perror("Failed to drmModeSetCrtc");
connector_id, 1, // connector_count
&crtc->mode) != 0) {
fprintf(stderr, "Failed to drmModeSetCrtc(%d)\n", *connector_id);
return false;
}
return true;
}
void MinuiBackendDrm::Blank(bool blank) {
Blank(blank, DRM_MAIN);
}
void MinuiBackendDrm::Blank(bool blank, DrmConnector index) {
const auto* drmInterface = &drm[DRM_MAIN];
switch (index) {
case DRM_MAIN:
drmInterface = &drm[DRM_MAIN];
break;
case DRM_SEC:
drmInterface = &drm[DRM_SEC];
break;
default:
fprintf(stderr, "Invalid index: %d\n", index);
return;
}
if (!drmInterface->monitor_connector) {
fprintf(stderr, "Unsupported. index = %d\n", index);
return;
}
if (blank) {
DrmDisableCrtc(drm_fd, main_monitor_crtc);
DrmDisableCrtc(drm_fd, drmInterface->monitor_crtc);
} else {
DrmEnableCrtc(drm_fd, main_monitor_crtc, GRSurfaceDrms[current_buffer]);
DrmEnableCrtc(drm_fd, drmInterface->monitor_crtc,
drmInterface->GRSurfaceDrms[drmInterface->current_buffer],
&drmInterface->monitor_connector->connector_id);
active_display = index;
}
}
@ -210,18 +238,21 @@ static drmModeCrtc* find_crtc_for_connector(int fd, drmModeRes* resources,
return nullptr;
}
static drmModeConnector* find_used_connector_by_type(int fd, drmModeRes* resources, unsigned type) {
std::vector<drmModeConnector*> find_used_connector_by_type(int fd, drmModeRes* resources,
unsigned type) {
std::vector<drmModeConnector*> drmConnectors;
for (int i = 0; i < resources->count_connectors; i++) {
drmModeConnector* connector = drmModeGetConnector(fd, resources->connectors[i]);
if (connector) {
if ((connector->connector_type == type) && (connector->connection == DRM_MODE_CONNECTED) &&
(connector->count_modes > 0)) {
return connector;
}
drmConnectors.push_back(connector);
} else {
drmModeFreeConnector(connector);
}
}
return nullptr;
}
return drmConnectors;
}
static drmModeConnector* find_first_connected_connector(int fd, drmModeRes* resources) {
@ -239,8 +270,7 @@ static drmModeConnector* find_first_connected_connector(int fd, drmModeRes* reso
return nullptr;
}
drmModeConnector* MinuiBackendDrm::FindMainMonitor(int fd, drmModeRes* resources,
uint32_t* mode_index) {
bool MinuiBackendDrm::FindAndSetMonitor(int fd, drmModeRes* resources) {
/* Look for LVDS/eDP/DSI connectors. Those are the main screens. */
static constexpr unsigned kConnectorPriority[] = {
DRM_MODE_CONNECTOR_LVDS,
@ -248,37 +278,41 @@ drmModeConnector* MinuiBackendDrm::FindMainMonitor(int fd, drmModeRes* resources
DRM_MODE_CONNECTOR_DSI,
};
drmModeConnector* main_monitor_connector = nullptr;
unsigned i = 0;
do {
main_monitor_connector = find_used_connector_by_type(fd, resources, kConnectorPriority[i]);
i++;
} while (!main_monitor_connector && i < arraysize(kConnectorPriority));
std::vector<drmModeConnector*> drmConnectors;
for (int i = 0; i < arraysize(kConnectorPriority) && drmConnectors.size() < DRM_MAX; i++) {
auto connectors = find_used_connector_by_type(fd, resources, kConnectorPriority[i]);
for (auto connector : connectors) {
drmConnectors.push_back(connector);
if (drmConnectors.size() >= DRM_MAX) break;
}
}
/* If we didn't find a connector, grab the first one that is connected. */
if (!main_monitor_connector) {
main_monitor_connector = find_first_connected_connector(fd, resources);
if (drmConnectors.empty()) {
drmModeConnector* connector = find_first_connected_connector(fd, resources);
if (connector) {
drmConnectors.push_back(connector);
}
}
/* If we still didn't find a connector, give up and return. */
if (!main_monitor_connector) return nullptr;
for (int drm_index = 0; drm_index < drmConnectors.size(); drm_index++) {
drm[drm_index].monitor_connector = drmConnectors[drm_index];
for (int modes = 0; modes < main_monitor_connector->count_modes; modes++) {
drm[drm_index].selected_mode = 0;
for (int modes = 0; modes < drmConnectors[drm_index]->count_modes; modes++) {
printf("Display Mode %d resolution: %d x %d @ %d FPS\n", modes,
main_monitor_connector->modes[modes].hdisplay,
main_monitor_connector->modes[modes].vdisplay,
main_monitor_connector->modes[modes].vrefresh);
}
*mode_index = 0;
for (int modes = 0; modes < main_monitor_connector->count_modes; modes++) {
if (main_monitor_connector->modes[modes].type & DRM_MODE_TYPE_PREFERRED) {
drmConnectors[drm_index]->modes[modes].hdisplay,
drmConnectors[drm_index]->modes[modes].vdisplay,
drmConnectors[drm_index]->modes[modes].vrefresh);
if (drmConnectors[drm_index]->modes[modes].type & DRM_MODE_TYPE_PREFERRED) {
printf("Choosing display mode #%d\n", modes);
*mode_index = modes;
drm[drm_index].selected_mode = modes;
break;
}
}
}
return main_monitor_connector;
return drmConnectors.size() > 0;
}
void MinuiBackendDrm::DisableNonMainCrtcs(int fd, drmModeRes* resources, drmModeCrtc* main_crtc) {
@ -329,46 +363,49 @@ GRSurface* MinuiBackendDrm::Init() {
return nullptr;
}
uint32_t selected_mode;
main_monitor_connector = FindMainMonitor(drm_fd, res, &selected_mode);
if (!main_monitor_connector) {
fprintf(stderr, "Failed to find main_monitor_connector\n");
if (!FindAndSetMonitor(drm_fd, res)) {
fprintf(stderr, "Failed to find main monitor_connector\n");
drmModeFreeResources(res);
close(drm_fd);
return nullptr;
}
main_monitor_crtc = find_crtc_for_connector(drm_fd, res, main_monitor_connector);
if (!main_monitor_crtc) {
fprintf(stderr, "Failed to find main_monitor_crtc\n");
for (int i = 0; i < DRM_MAX; i++) {
if (drm[i].monitor_connector) {
drm[i].monitor_crtc = find_crtc_for_connector(drm_fd, res, drm[i].monitor_connector);
if (!drm[i].monitor_crtc) {
fprintf(stderr, "Failed to find monitor_crtc, drm index=%d\n", i);
drmModeFreeResources(res);
close(drm_fd);
return nullptr;
}
DisableNonMainCrtcs(drm_fd, res, main_monitor_crtc);
drm[i].monitor_crtc->mode = drm[i].monitor_connector->modes[drm[i].selected_mode];
main_monitor_crtc->mode = main_monitor_connector->modes[selected_mode];
int width = main_monitor_crtc->mode.hdisplay;
int height = main_monitor_crtc->mode.vdisplay;
int width = drm[i].monitor_crtc->mode.hdisplay;
int height = drm[i].monitor_crtc->mode.vdisplay;
drm[i].GRSurfaceDrms[0] = GRSurfaceDrm::Create(drm_fd, width, height);
drm[i].GRSurfaceDrms[1] = GRSurfaceDrm::Create(drm_fd, width, height);
if (!drm[i].GRSurfaceDrms[0] || !drm[i].GRSurfaceDrms[1]) {
fprintf(stderr, "Failed to create GRSurfaceDrm, drm index=%d\n", i);
drmModeFreeResources(res);
GRSurfaceDrms[0] = GRSurfaceDrm::Create(drm_fd, width, height);
GRSurfaceDrms[1] = GRSurfaceDrm::Create(drm_fd, width, height);
if (!GRSurfaceDrms[0] || !GRSurfaceDrms[1]) {
return nullptr;
}
current_buffer = 0;
drm[i].current_buffer = 0;
}
}
DisableNonMainCrtcs(drm_fd, res, drm[DRM_MAIN].monitor_crtc);
drmModeFreeResources(res);
// We will likely encounter errors in the backend functions (i.e. Flip) if EnableCrtc fails.
if (!DrmEnableCrtc(drm_fd, main_monitor_crtc, GRSurfaceDrms[1])) {
if (!DrmEnableCrtc(drm_fd, drm[DRM_MAIN].monitor_crtc, drm[DRM_MAIN].GRSurfaceDrms[1],
&drm[DRM_MAIN].monitor_connector->connector_id)) {
return nullptr;
}
return GRSurfaceDrms[0].get();
return drm[DRM_MAIN].GRSurfaceDrms[0].get();
}
static void page_flip_complete(__unused int fd,
@ -380,10 +417,19 @@ static void page_flip_complete(__unused int fd,
}
GRSurface* MinuiBackendDrm::Flip() {
GRSurface* surface = NULL;
DrmInterface* current_drm = &drm[active_display];
bool ongoing_flip = true;
if (drmModePageFlip(drm_fd, main_monitor_crtc->crtc_id, GRSurfaceDrms[current_buffer]->fb_id,
if (!current_drm->monitor_connector) {
fprintf(stderr, "Unsupported. active_display = %d\n", active_display);
return nullptr;
}
if (drmModePageFlip(drm_fd, current_drm->monitor_crtc->crtc_id,
current_drm->GRSurfaceDrms[current_drm->current_buffer]->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &ongoing_flip) != 0) {
perror("Failed to drmModePageFlip");
fprintf(stderr, "Failed to drmModePageFlip, active_display=%d", active_display);
return nullptr;
}
@ -409,14 +455,19 @@ GRSurface* MinuiBackendDrm::Flip() {
}
}
current_buffer = 1 - current_buffer;
return GRSurfaceDrms[current_buffer].get();
current_drm->current_buffer = 1 - current_drm->current_buffer;
surface = current_drm->GRSurfaceDrms[current_drm->current_buffer].get();
return surface;
}
MinuiBackendDrm::~MinuiBackendDrm() {
DrmDisableCrtc(drm_fd, main_monitor_crtc);
drmModeFreeCrtc(main_monitor_crtc);
drmModeFreeConnector(main_monitor_connector);
for (int i = 0; i < DRM_MAX; i++) {
if (drm[i].monitor_connector) {
DrmDisableCrtc(drm_fd, drm[i].monitor_crtc);
drmModeFreeCrtc(drm[i].monitor_crtc);
drmModeFreeConnector(drm[i].monitor_connector);
}
}
close(drm_fd);
drm_fd = -1;
}

15
minui/graphics_drm.h
View file

@ -59,16 +59,23 @@ class MinuiBackendDrm : public MinuiBackend {
GRSurface* Init() override;
GRSurface* Flip() override;
void Blank(bool) override;
void Blank(bool blank, DrmConnector index) override;
private:
void DrmDisableCrtc(int drm_fd, drmModeCrtc* crtc);
bool DrmEnableCrtc(int drm_fd, drmModeCrtc* crtc, const std::unique_ptr<GRSurfaceDrm>& surface);
bool DrmEnableCrtc(int drm_fd, drmModeCrtc* crtc, const std::unique_ptr<GRSurfaceDrm>& surface,
uint32_t* conntcors);
void DisableNonMainCrtcs(int fd, drmModeRes* resources, drmModeCrtc* main_crtc);
drmModeConnector* FindMainMonitor(int fd, drmModeRes* resources, uint32_t* mode_index);
bool FindAndSetMonitor(int fd, drmModeRes* resources);
struct DrmInterface {
std::unique_ptr<GRSurfaceDrm> GRSurfaceDrms[2];
int current_buffer{ 0 };
drmModeCrtc* main_monitor_crtc{ nullptr };
drmModeConnector* main_monitor_connector{ nullptr };
drmModeCrtc* monitor_crtc{ nullptr };
drmModeConnector* monitor_connector{ nullptr };
uint32_t selected_mode{ 0 };
} drm[DRM_MAX];
int drm_fd{ -1 };
DrmConnector active_display = DRM_MAIN;
};

4
minui/graphics_fbdev.cpp
View file

@ -43,6 +43,10 @@ void MinuiBackendFbdev::Blank(bool blank) {
if (ret < 0) perror("ioctl(): blank");
}
void MinuiBackendFbdev::Blank(bool blank, DrmConnector index) {
fprintf(stderr, "Unsupported multiple connectors, blank = %d, index = %d\n", blank, index);
}
void MinuiBackendFbdev::SetDisplayedFramebuffer(size_t n) {
if (n > 1 || !double_buffered) return;

1
minui/graphics_fbdev.h
View file

@ -56,6 +56,7 @@ class MinuiBackendFbdev : public MinuiBackend {
GRSurface* Init() override;
GRSurface* Flip() override;
void Blank(bool) override;
void Blank(bool blank, DrmConnector index) override;
private:
void SetDisplayedFramebuffer(size_t n);

1
minui/include/minui/minui.h
View file

@ -127,6 +127,7 @@ int gr_fb_height();
void gr_flip();
void gr_fb_blank(bool blank);
void gr_fb_blank(bool blank, int index);
// Clears entire surface to current color.
void gr_clear();