1 #include <cassert>
2 #include <stdexcept>
3
4 #include <xf86drm.h>
5 #include <xf86drmMode.h>
6
7 #include <kms++/kms++.h>
8
9 #ifndef DRM_CLIENT_CAP_ATOMIC
10
11 #define DRM_MODE_ATOMIC_TEST_ONLY 0
12 #define DRM_MODE_ATOMIC_NONBLOCK 0
13
14 struct _drmModeAtomicReq;
15 typedef struct _drmModeAtomicReq* drmModeAtomicReqPtr;
16
drmModeAtomicAlloc()17 static inline drmModeAtomicReqPtr drmModeAtomicAlloc() { return 0; }
drmModeAtomicFree(drmModeAtomicReqPtr)18 static inline void drmModeAtomicFree(drmModeAtomicReqPtr) { }
drmModeAtomicAddProperty(drmModeAtomicReqPtr,uint32_t,uint32_t,uint64_t)19 static inline int drmModeAtomicAddProperty(drmModeAtomicReqPtr, uint32_t, uint32_t, uint64_t) { return 0; }
drmModeAtomicCommit(int,drmModeAtomicReqPtr,int,void *)20 static inline int drmModeAtomicCommit(int, drmModeAtomicReqPtr, int, void*) { return 0; }
21
22 #endif // DRM_CLIENT_CAP_ATOMIC
23
24 using namespace std;
25
26 namespace kms
27 {
AtomicReq(Card & card)28 AtomicReq::AtomicReq(Card& card)
29 : m_card(card)
30 {
31 assert(card.has_atomic());
32 m_req = drmModeAtomicAlloc();
33 }
34
~AtomicReq()35 AtomicReq::~AtomicReq()
36 {
37 drmModeAtomicFree(m_req);
38 }
39
add(uint32_t ob_id,uint32_t prop_id,uint64_t value)40 void AtomicReq::add(uint32_t ob_id, uint32_t prop_id, uint64_t value)
41 {
42 int r = drmModeAtomicAddProperty(m_req, ob_id, prop_id, value);
43 if (r <= 0)
44 throw std::invalid_argument("foo");
45 }
46
add(DrmPropObject * ob,Property * prop,uint64_t value)47 void AtomicReq::add(DrmPropObject* ob, Property *prop, uint64_t value)
48 {
49 add(ob->id(), prop->id(), value);
50 }
51
add(kms::DrmPropObject * ob,const string & prop,uint64_t value)52 void AtomicReq::add(kms::DrmPropObject* ob, const string& prop, uint64_t value)
53 {
54 add(ob, ob->get_prop(prop), value);
55 }
56
add(kms::DrmPropObject * ob,const map<string,uint64_t> & values)57 void AtomicReq::add(kms::DrmPropObject* ob, const map<string, uint64_t>& values)
58 {
59 for(const auto& kvp : values)
60 add(ob, kvp.first, kvp.second);
61 }
62
add_display(Connector * conn,Crtc * crtc,Blob * videomode,Plane * primary,Framebuffer * fb)63 void AtomicReq::add_display(Connector* conn, Crtc* crtc, Blob* videomode, Plane* primary, Framebuffer* fb)
64 {
65 add(conn, {
66 { "CRTC_ID", crtc->id() },
67 });
68
69 add(crtc, {
70 { "ACTIVE", 1 },
71 { "MODE_ID", videomode->id() },
72 });
73
74 add(primary, {
75 { "FB_ID", fb->id() },
76 { "CRTC_ID", crtc->id() },
77 { "SRC_X", 0 << 16 },
78 { "SRC_Y", 0 << 16 },
79 { "SRC_W", fb->width() << 16 },
80 { "SRC_H", fb->height() << 16 },
81 { "CRTC_X", 0 },
82 { "CRTC_Y", 0 },
83 { "CRTC_W", fb->width() },
84 { "CRTC_H", fb->height() },
85 });
86 }
87
test(bool allow_modeset)88 int AtomicReq::test(bool allow_modeset)
89 {
90 uint32_t flags = DRM_MODE_ATOMIC_TEST_ONLY;
91
92 if (allow_modeset)
93 flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
94
95 return drmModeAtomicCommit(m_card.fd(), m_req, flags, 0);
96 }
97
commit(void * data,bool allow_modeset)98 int AtomicReq::commit(void* data, bool allow_modeset)
99 {
100 uint32_t flags = DRM_MODE_PAGE_FLIP_EVENT | DRM_MODE_ATOMIC_NONBLOCK;
101
102 if (allow_modeset)
103 flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
104
105 return drmModeAtomicCommit(m_card.fd(), m_req, flags, data);
106 }
107
commit_sync(bool allow_modeset)108 int AtomicReq::commit_sync(bool allow_modeset)
109 {
110 uint32_t flags = 0;
111
112 if (allow_modeset)
113 flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
114
115 return drmModeAtomicCommit(m_card.fd(), m_req, flags, 0);
116 }
117 }
118