6 files changed, 387 insertions, 0 deletions
diff --git a/src/detection/camera/camera.h b/src/detection/camera/camera.h
new file mode 100644
index 0000000..52036b5
--- /dev/null
+++ b/src/detection/camera/camera.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include "fastfetch.h"
+#include "modules/camera/option.h"
+
+typedef struct FFCameraResult {
+    FFstrbuf name;
+    FFstrbuf vendor;
+    FFstrbuf id;
+    FFstrbuf colorspace;
+    uint32_t width;
+    uint32_t height;
+} FFCameraResult;
+
+const char* ffDetectCamera(FFlist* result /* list of FFCameraResult */);
diff --git a/src/detection/camera/camera_android.c b/src/detection/camera/camera_android.c
new file mode 100644
index 0000000..b09314d
--- /dev/null
+++ b/src/detection/camera/camera_android.c
@@ -0,0 +1,58 @@
+#include "camera.h"
+
+#include "common/processing.h"
+#include "common/properties.h"
+
+#define FF_TERMUX_API_PATH FASTFETCH_TARGET_DIR_ROOT "/libexec/termux-api"
+#define FF_TERMUX_API_PARAM "CameraInfo"
+
+static inline void wrapYyjsonFree(yyjson_doc** doc) {
+    assert(doc);
+    if (*doc) {
+        yyjson_doc_free(*doc);
+    }
+}
+
+const char* ffDetectCamera(FF_A_UNUSED FFlist* result) {
+    FF_STRBUF_AUTO_DESTROY buffer = ffStrbufCreate();
+
+    if (ffProcessAppendStdOut(&buffer, (char* const[]) { FF_TERMUX_API_PATH, FF_TERMUX_API_PARAM, NULL })) {
+        return "Starting `" FF_TERMUX_API_PATH " " FF_TERMUX_API_PARAM "` failed";
+    }
+
+    yyjson_doc* FF_A_CLEANUP(wrapYyjsonFree) doc = yyjson_read_opts(buffer.chars, buffer.length, 0, NULL, NULL);
+    if (!doc) {
+        return "Failed to parse camera info";
+    }
+
+    yyjson_val* root = yyjson_doc_get_root(doc);
+    if (!yyjson_is_arr(root)) {
+        return "Camera info result is not a JSON array";
+    }
+
+    yyjson_val* device;
+    size_t idx, max;
+    yyjson_arr_foreach (root, idx, max, device) {
+        FFCameraResult* camera = FF_LIST_ADD(FFCameraResult, *result);
+        {
+            const char* facing = yyjson_get_str(yyjson_obj_get(device, "facing"));
+            if (facing) {
+                ffStrbufInitF(&camera->name, "builtin-%s", facing);
+            } else {
+                ffStrbufInitStatic(&camera->name, "Unknown");
+            }
+        }
+        ffStrbufInit(&camera->vendor);
+        ffStrbufInitJsonVal(&camera->id, yyjson_obj_get(device, "id"));
+        yyjson_val* sizes = yyjson_arr_get_first(yyjson_obj_get(device, "jpeg_output_sizes"));
+        if (yyjson_is_obj(sizes)) {
+            camera->width = (uint32_t) yyjson_get_uint(yyjson_obj_get(sizes, "width"));
+            camera->height = (uint32_t) yyjson_get_uint(yyjson_obj_get(sizes, "height"));
+        } else {
+            camera->width = camera->height = 0;
+        }
+        ffStrbufInit(&camera->colorspace);
+    }
+
+    return NULL;
+}
diff --git a/src/detection/camera/camera_apple.m b/src/detection/camera/camera_apple.m
new file mode 100644
index 0000000..aa5c1cf
--- /dev/null
+++ b/src/detection/camera/camera_apple.m
@@ -0,0 +1,61 @@
+#include "camera.h"
+#include "common/io.h"
+
+#import <AVFoundation/AVCaptureDevice.h>
+
+// warning: 'AVCaptureDeviceTypeExternalUnknown' is deprecated
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
+#ifdef MAC_OS_VERSION_14_0
+// To make fastfetch compiled on newer macOS versions runs on older ones
+AVF_EXPORT FF_A_WEAK_IMPORT AVCaptureDeviceType const AVCaptureDeviceTypeExternal;
+#endif
+
+const char* ffDetectCamera(FFlist* result)
+{
+    #ifdef MAC_OS_X_VERSION_10_15
+    FF_SUPPRESS_IO(); // #822
+
+    AVCaptureDeviceType deviceType = NULL;
+
+    #ifdef MAC_OS_VERSION_14_0
+    // Strangely `@available(macOS 14.0, *)` doesn't work here (#1594)
+    if (@available(macOS 14.0, *))
+    {
+        if (&AVCaptureDeviceTypeExternal)
+            deviceType = AVCaptureDeviceTypeExternal;
+    }
+    #endif
+    if (deviceType == NULL)
+        deviceType = AVCaptureDeviceTypeExternalUnknown;
+
+    AVCaptureDeviceDiscoverySession* session = [AVCaptureDeviceDiscoverySession discoverySessionWithDeviceTypes:@[AVCaptureDeviceTypeBuiltInWideAngleCamera, deviceType]
+                                                                                mediaType:AVMediaTypeVideo
+                                                                                position:AVCaptureDevicePositionUnspecified];
+    if (!session)
+        return "Failed to create AVCaptureDeviceDiscoverySession";
+
+    for (AVCaptureDevice* device in session.devices)
+    {
+        FFCameraResult* camera = FF_LIST_ADD(FFCameraResult, *result);
+        ffStrbufInitS(&camera->name, device.localizedName.UTF8String);
+        ffStrbufInitS(&camera->vendor, device.manufacturer.UTF8String);
+        ffStrbufInitS(&camera->id, device.uniqueID.UTF8String);
+        switch (device.activeColorSpace)
+        {
+            case AVCaptureColorSpace_sRGB: ffStrbufInitStatic(&camera->colorspace, "sRGB"); break;
+            case AVCaptureColorSpace_P3_D65: ffStrbufInitStatic(&camera->colorspace, "P3-D65"); break;
+            case 2 /*AVCaptureColorSpace_HLG_BT2020*/: ffStrbufInitStatic(&camera->colorspace, "BT2020-HLG"); break;
+            case 3 /*AVCaptureColorSpace_AppleLog*/: ffStrbufInitStatic(&camera->colorspace, "AppleLog"); break;
+            case 4 /*AVCaptureColorSpace_AppleLog2*/: ffStrbufInitStatic(&camera->colorspace, "AppleLog2"); break;
+        }
+
+        CMVideoDimensions size = CMVideoFormatDescriptionGetDimensions(device.activeFormat.formatDescription);
+        camera->width = size.width < 0 ? 0 : (uint32_t) size.width;
+        camera->height = size.height < 0 ? 0 : (uint32_t) size.height;
+    }
+    return NULL;
+    #else
+    return "No support for old MacOS version";
+    #endif
+}
diff --git a/src/detection/camera/camera_linux.c b/src/detection/camera/camera_linux.c
new file mode 100644
index 0000000..2fea2b4
--- /dev/null
+++ b/src/detection/camera/camera_linux.c
@@ -0,0 +1,94 @@
+#include "camera.h"
+#include "common/io.h"
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#if FF_HAVE_LINUX_VIDEODEV2
+    #include <linux/videodev2.h>
+#elif __has_include(<sys/videoio.h>) // OpenBSD
+    #include <sys/videoio.h>
+    #define FF_HAVE_LINUX_VIDEODEV2 1
+#endif
+
+const char* ffDetectCamera(FFlist* result) {
+#if FF_HAVE_LINUX_VIDEODEV2
+    char path[] = "/dev/videoN";
+
+    for (uint32_t i = 0; i <= 9; ++i) {
+        path[ARRAY_SIZE(path) - 2] = (char) (i + '0');
+        FF_AUTO_CLOSE_FD int fd = open(path, O_RDONLY | O_CLOEXEC);
+        if (fd < 0) {
+            if (errno == ENOENT) {
+                break;
+            }
+            if (errno == ENXIO) {
+                continue;
+            }
+            return "Failed to open /dev/videoN";
+        }
+
+        struct v4l2_capability cap = {};
+        if (ioctl(fd, VIDIOC_QUERYCAP, &cap) < 0 || !(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
+            continue;
+        }
+
+        struct v4l2_format fmt = { .type = V4L2_BUF_TYPE_VIDEO_CAPTURE };
+        if (ioctl(fd, VIDIOC_G_FMT, &fmt) < 0) {
+            continue;
+        }
+
+        FFCameraResult* camera = FF_LIST_ADD(FFCameraResult, *result);
+        ffStrbufInitS(&camera->name, (const char*) cap.card);
+        ffStrbufInit(&camera->vendor);
+        ffStrbufInitS(&camera->id, (const char*) cap.bus_info);
+        switch (fmt.fmt.pix.colorspace) {
+            case V4L2_COLORSPACE_SMPTE170M:
+                ffStrbufInitStatic(&camera->colorspace, "SMPTE 170M");
+                break;
+            case V4L2_COLORSPACE_SMPTE240M:
+                ffStrbufInitStatic(&camera->colorspace, "SMPTE 240M");
+                break;
+            case V4L2_COLORSPACE_BT878:
+                ffStrbufInitStatic(&camera->colorspace, "BT.878");
+                break;
+            case V4L2_COLORSPACE_470_SYSTEM_M:
+                ffStrbufInitStatic(&camera->colorspace, "NTSC");
+                break;
+            case V4L2_COLORSPACE_470_SYSTEM_BG:
+                ffStrbufInitStatic(&camera->colorspace, "EBU 3213");
+                break;
+            case V4L2_COLORSPACE_JPEG:
+                ffStrbufInitStatic(&camera->colorspace, "JPEG");
+                break;
+            case V4L2_COLORSPACE_REC709:
+            case V4L2_COLORSPACE_SRGB:
+                ffStrbufInitStatic(&camera->colorspace, "sRGB");
+                break;
+            case 9 /* V4L2_COLORSPACE_OPRGB */:
+                ffStrbufInitStatic(&camera->colorspace, "Adobe RGB");
+                break;
+            case 10 /* V4L2_COLORSPACE_BT2020 */:
+                ffStrbufInitStatic(&camera->colorspace, "BT.2020");
+                break;
+            case 11 /* V4L2_COLORSPACE_RAW */:
+                ffStrbufInitStatic(&camera->colorspace, "RAW");
+                break;
+            case 12 /* V4L2_COLORSPACE_DCI_P3 */:
+                ffStrbufInitStatic(&camera->colorspace, "DCI-P3");
+                break;
+            default:
+                ffStrbufInit(&camera->colorspace);
+                break;
+        }
+        camera->width = fmt.fmt.pix.width;
+        camera->height = fmt.fmt.pix.height;
+    }
+
+    return NULL;
+#else
+    FF_UNUSED(result);
+    return "Fastfetch was compiled without <linux/videodev2.h>";
+#endif
+}
diff --git a/src/detection/camera/camera_nosupport.c b/src/detection/camera/camera_nosupport.c
new file mode 100644
index 0000000..ae5b243
--- /dev/null
+++ b/src/detection/camera/camera_nosupport.c
@@ -0,0 +1,5 @@
+#include "camera.h"
+
+const char* ffDetectCamera(FF_A_UNUSED FFlist* result) {
+    return "Not support on this platform";
+}
diff --git a/src/detection/camera/camera_windows.cpp b/src/detection/camera/camera_windows.cpp
new file mode 100644
index 0000000..1f42306
--- /dev/null
+++ b/src/detection/camera/camera_windows.cpp
@@ -0,0 +1,154 @@
+extern "C" {
+#include "camera.h"
+#include "common/library.h"
+#include "common/windows/com.h"
+}
+#include "common/windows/unicode.hpp"
+#include "common/windows/util.hpp"
+
+#include <initguid.h>
+#include <mfapi.h>
+#include <mfidl.h>
+
+extern "C" const char* ffDetectCamera(FF_A_UNUSED FFlist* result) {
+    FF_LIBRARY_LOAD_MESSAGE(mfplat, "mfplat" FF_LIBRARY_EXTENSION, 1)
+    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(mfplat, MFCreateAttributes)
+    FF_LIBRARY_LOAD_MESSAGE(mf, "mf" FF_LIBRARY_EXTENSION, 1)
+    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(mf, MFEnumDeviceSources)
+
+    const char* error = ffInitCom();
+    if (error) {
+        return error;
+    }
+
+    IMFAttributes* FF_AUTO_RELEASE_COM_OBJECT attrs = nullptr;
+    if (FAILED(ffMFCreateAttributes(&attrs, 1))) {
+        return "MFCreateAttributes() failed";
+    }
+
+    if (FAILED(attrs->SetGUID(
+            MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE,
+            MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID))) {
+        return "SetGUID(MF_*) failed";
+    }
+
+    IMFActivate** devices = NULL;
+    uint32_t count;
+
+    if (FAILED(ffMFEnumDeviceSources(attrs, &devices, &count))) {
+        return "MFEnumDeviceSources() failed";
+    }
+
+    for (uint32_t i = 0; i < count; i++) {
+        IMFActivate* FF_AUTO_RELEASE_COM_OBJECT device = devices[i];
+
+        wchar_t buffer[256];
+        uint32_t length = 0;
+        if (FAILED(device->GetString(MF_DEVSOURCE_ATTRIBUTE_FRIENDLY_NAME, buffer, ARRAY_SIZE(buffer), &length)) || length == 0) {
+            continue;
+        }
+
+        FFCameraResult* camera = FF_LIST_ADD(FFCameraResult, *result);
+        ffStrbufInitNWS(&camera->name, length, buffer);
+        ffStrbufInit(&camera->colorspace);
+        ffStrbufInit(&camera->vendor);
+        ffStrbufInit(&camera->id);
+        camera->width = 0;
+        camera->height = 0;
+
+        if (SUCCEEDED(device->GetString(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_SYMBOLIC_LINK, buffer, ARRAY_SIZE(buffer), &length)) && length > 0) {
+            ffStrbufSetNWS(&camera->id, length, buffer);
+        }
+
+        IMFMediaSource* FF_AUTO_RELEASE_COM_OBJECT source = nullptr;
+        if (FAILED(device->ActivateObject(IID_PPV_ARGS(&source)))) {
+            continue;
+        }
+
+        on_scope_exit destroySource([&] { source->Shutdown(); });
+
+        IMFPresentationDescriptor* FF_AUTO_RELEASE_COM_OBJECT pd = nullptr;
+        if (FAILED(source->CreatePresentationDescriptor(&pd))) {
+            continue;
+        }
+
+        IMFStreamDescriptor* FF_AUTO_RELEASE_COM_OBJECT sd = nullptr;
+        BOOL selected;
+        if (FAILED(pd->GetStreamDescriptorByIndex(0, &selected, &sd))) {
+            continue;
+        }
+
+        IMFMediaTypeHandler* FF_AUTO_RELEASE_COM_OBJECT handler = nullptr;
+        if (FAILED(sd->GetMediaTypeHandler(&handler))) {
+            continue;
+        }
+
+        DWORD mediaTypeCount;
+        if (FAILED(handler->GetMediaTypeCount(&mediaTypeCount))) {
+            continue;
+        }
+
+        // Assume first type is the maximum resolution
+        IMFMediaType* type = NULL;
+        for (DWORD idx = 0; SUCCEEDED(handler->GetMediaTypeByIndex(idx, &type)); ++idx) {
+            on_scope_exit destroyType([=] { type->Release(); });
+
+            GUID majorType;
+            if (FAILED(type->GetMajorType(&majorType)) || majorType != MFMediaType_Video) {
+                continue;
+            }
+
+            MFVideoPrimaries primaries;
+            static_assert(sizeof(primaries) == sizeof(uint32_t), "");
+            if (SUCCEEDED(type->GetUINT32(MF_MT_VIDEO_PRIMARIES, (uint32_t*) &primaries))) {
+                switch (primaries) {
+                    case MFVideoPrimaries_BT709:
+                        ffStrbufSetStatic(&camera->colorspace, "sRGB");
+                        break;
+                    case MFVideoPrimaries_BT470_2_SysM:
+                    case MFVideoPrimaries_BT470_2_SysBG:
+                        ffStrbufSetStatic(&camera->colorspace, "NTSC");
+                        break;
+                    case MFVideoPrimaries_SMPTE170M:
+                        ffStrbufSetStatic(&camera->colorspace, "SMPTE 170M");
+                        break;
+                    case MFVideoPrimaries_SMPTE240M:
+                        ffStrbufSetStatic(&camera->colorspace, "SMPTE 240M");
+                        break;
+                    case MFVideoPrimaries_EBU3213:
+                        ffStrbufSetStatic(&camera->colorspace, "EBU 3213");
+                        break;
+                    case MFVideoPrimaries_SMPTE_C:
+                        ffStrbufSetStatic(&camera->colorspace, "SMPTE C");
+                        break;
+                    case MFVideoPrimaries_BT2020:
+                        ffStrbufSetStatic(&camera->colorspace, "BT.2020");
+                        break;
+                    case MFVideoPrimaries_XYZ:
+                        ffStrbufSetStatic(&camera->colorspace, "XYZ");
+                        break;
+                    case MFVideoPrimaries_DCI_P3:
+                        ffStrbufSetStatic(&camera->colorspace, "DCI-P3");
+                        break;
+                    case MFVideoPrimaries_ACES:
+                        ffStrbufSetStatic(&camera->colorspace, "ACES");
+                        break;
+                    case (MFVideoPrimaries) 13: // MFVideoPrimaries_Display_P3
+                        ffStrbufSetStatic(&camera->colorspace, "Display P3");
+                        break;
+                    default:
+                        break;
+                }
+            }
+
+            MFGetAttributeSize(type, MF_MT_FRAME_SIZE, &camera->width, &camera->height);
+            break;
+        }
+    }
+
+    if (devices) {
+        CoTaskMemFree(devices);
+    }
+
+    return nullptr;
+}