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