libkms++/plane.cpp

   1 #include <stdio.h>
   2 #include <iostream>
   3 #include <unistd.h>
   4 #include <fcntl.h>
   5 #include <cassert>
   6 #include <xf86drm.h>
   7 #include <xf86drmMode.h>
   8
   9 #include "kms++.h"
  10
  11 using namespace std;
  12
  13 namespace kms
  14 {
  15
  16 struct PlanePriv
  17 {
  18         drmModePlanePtr drm_plane;
  19 };
  20
  21 Plane::Plane(Card &card, uint32_t id)
  22         :DrmObject(card, id, DRM_MODE_OBJECT_PLANE)
  23 {
  24         m_priv = new PlanePriv();
  25         m_priv->drm_plane = drmModeGetPlane(this->card().fd(), this->id());
  26         assert(m_priv->drm_plane);
  27 }
  28
  29 Plane::~Plane()
  30 {
  31         drmModeFreePlane(m_priv->drm_plane);
  32         delete m_priv;
  33 }
  34
  35 void Plane::print_short() const
  36 {
  37         auto p = m_priv->drm_plane;
  38
  39         printf("Plane %d, %d modes, %d,%d -> %dx%d\n", id(),
  40                p->count_formats,
  41                p->crtc_x, p->crtc_y, p->x, p->y);
  42
  43         printf("\t");
  44         for (unsigned i = 0; i < p->count_formats; ++i) {
  45                 uint32_t f = p->formats[i];
  46                 printf("%c%c%c%c ",
  47                        (f >> 0) & 0xff,
  48                        (f >> 8) & 0xff,
  49                        (f >> 16) & 0xff,
  50                        (f >> 24) & 0xff);
  51         }
  52         printf("\n");
  53 }
  54
  55 bool Plane::supports_crtc(Crtc* crtc) const
  56 {
  57         return m_priv->drm_plane->possible_crtcs & (1 << crtc->idx());
  58 }
  59
  60 bool Plane::supports_format(PixelFormat fmt) const
  61 {
  62         auto p = m_priv->drm_plane;
  63
  64         for (unsigned i = 0; i < p->count_formats; ++i)
  65                 if ((uint32_t)fmt == p->formats[i])
  66                         return true;
  67
  68         return false;
  69 }
  70
  71 PlaneType Plane::plane_type() const
  72 {
  73         if (card().has_has_universal_planes())
  74                 return (PlaneType)get_prop_value("type");
  75         else
  76                 return PlaneType::Overlay;
  77 }
  78 }