1 #include <xf86drm.h>
2 #include <stdexcept>
3 #include <cmath>
4
5 #include <kms++/modedb.h>
6
7 using namespace std;
8
9 namespace kms
10 {
11
find_from_table(const Videomode * modes,uint32_t width,uint32_t height,float vrefresh,bool ilace)12 static const Videomode& find_from_table(const Videomode* modes, uint32_t width, uint32_t height, float vrefresh, bool ilace)
13 {
14 for (unsigned i = 0; modes[i].clock; ++i) {
15 const Videomode& m = modes[i];
16
17 if (m.hdisplay != width || m.vdisplay != height)
18 continue;
19
20 if (ilace != m.interlace())
21 continue;
22
23 if (vrefresh && vrefresh != m.calculated_vrefresh())
24 continue;
25
26 return m;
27 }
28
29 // If not found, do another round using rounded vrefresh
30
31 for (unsigned i = 0; modes[i].clock; ++i) {
32 const Videomode& m = modes[i];
33
34 if (m.hdisplay != width || m.vdisplay != height)
35 continue;
36
37 if (ilace != m.interlace())
38 continue;
39
40 if (vrefresh && vrefresh != roundf(m.calculated_vrefresh()))
41 continue;
42
43 return m;
44 }
45
46 throw invalid_argument("mode not found");
47 }
48
find_dmt(uint32_t width,uint32_t height,float vrefresh,bool ilace)49 const Videomode& find_dmt(uint32_t width, uint32_t height, float vrefresh, bool ilace)
50 {
51 return find_from_table(dmt_modes, width, height, vrefresh, ilace);
52 }
53
find_cea(uint32_t width,uint32_t height,float vrefresh,bool ilace)54 const Videomode& find_cea(uint32_t width, uint32_t height, float vrefresh, bool ilace)
55 {
56 return find_from_table(cea_modes, width, height, vrefresh, ilace);
57 }
58
59 }
60