本文整理汇总了C++中DllBcmHost::vc_tv_hdmi_get_supported_modes_new方法的典型用法代码示例。如果您正苦于以下问题：C++ DllBcmHost::vc_tv_hdmi_get_supported_modes_new方法的具体用法？C++ DllBcmHost::vc_tv_hdmi_get_supported_modes_new怎么用？C++ DllBcmHost::vc_tv_hdmi_get_supported_modes_new使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DllBcmHost的用法示例。
在下文中一共展示了DllBcmHost::vc_tv_hdmi_get_supported_modes_new方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: SetVideoMode
void SetVideoMode(int width, int height, int fpsrate, int fpsscale, FORMAT_3D_T is3d)
{
int32_t num_modes = 0;
int i;
HDMI_RES_GROUP_T prefer_group;
HDMI_RES_GROUP_T group = HDMI_RES_GROUP_CEA;
float fps = 60.0f; // better to force to higher rate if no information is known
uint32_t prefer_mode;
if (fpsrate && fpsscale)
fps = DVD_TIME_BASE / OMXReader::NormalizeFrameduration((double)DVD_TIME_BASE * fpsscale / fpsrate);
//Supported HDMI CEA/DMT resolutions, preferred resolution will be returned
TV_SUPPORTED_MODE_NEW_T *supported_modes = NULL;
// query the number of modes first
int max_supported_modes = m_BcmHost.vc_tv_hdmi_get_supported_modes_new(group, NULL, 0, &prefer_group, &prefer_mode);
if (max_supported_modes > 0)
supported_modes = new TV_SUPPORTED_MODE_NEW_T[max_supported_modes];
if (supported_modes)
{
num_modes = m_BcmHost.vc_tv_hdmi_get_supported_modes_new(group,
supported_modes, max_supported_modes, &prefer_group, &prefer_mode);
CLog::Log(LOGDEBUG, "EGL get supported modes (%d) = %d, prefer_group=%x, prefer_mode=%x\n",
group, num_modes, prefer_group, prefer_mode);
}
TV_SUPPORTED_MODE_NEW_T *tv_found = NULL;
if (num_modes > 0 && prefer_group != HDMI_RES_GROUP_INVALID)
{
uint32_t best_score = 1<<30;
uint32_t scan_mode = 0;
for (i=0; i<num_modes; i++)
{
TV_SUPPORTED_MODE_NEW_T *tv = supported_modes + i;
uint32_t score = 0;
uint32_t w = tv->width;
uint32_t h = tv->height;
uint32_t r = tv->frame_rate;
/* Check if frame rate match (equal or exact multiple) */
if(fabs(r - 1.0f*fps) / fps < 0.002f)
score += 0;
else if(fabs(r - 2.0f*fps) / fps < 0.002f)
score += 1<<8;
else
score += (1<<28)/r; // bad - but prefer higher framerate
/* Check size too, only choose, bigger resolutions */
if(width && height)
{
/* cost of too small a resolution is high */
score += max((int)(width -w), 0) * (1<<16);
score += max((int)(height-h), 0) * (1<<16);
/* cost of too high a resolution is lower */
score += max((int)(w-width ), 0) * (1<<4);
score += max((int)(h-height), 0) * (1<<4);
}
// native is good
if (!tv->native)
score += 1<<16;
// interlace is bad
if (scan_mode != tv->scan_mode)
score += (1<<16);
// wanting 3D but not getting it is a negative
if (is3d == CONF_FLAGS_FORMAT_SBS && !(tv->struct_3d_mask & HDMI_3D_STRUCT_SIDE_BY_SIDE_HALF_HORIZONTAL))
score += 1<<18;
if (is3d == CONF_FLAGS_FORMAT_TB && !(tv->struct_3d_mask & HDMI_3D_STRUCT_TOP_AND_BOTTOM))
score += 1<<18;
// prefer square pixels modes
float par = get_display_aspect_ratio((HDMI_ASPECT_T)tv->aspect_ratio)*(float)tv->height/(float)tv->width;
score += fabs(par - 1.0f) * (1<<12);
/*printf("mode %dx%[email protected]%d %s%s:%x par=%.2f score=%d\n", tv->width, tv->height,
tv->frame_rate, tv->native?"N":"", tv->scan_mode?"I":"", tv->code, par, score);*/
if (score < best_score)
{
tv_found = tv;
best_score = score;
}
}
}
if(tv_found)
{
printf("Output mode %d: %dx%[email protected]%d %s%s:%x\n", tv_found->code, tv_found->width, tv_found->height,
tv_found->frame_rate, tv_found->native?"N":"", tv_found->scan_mode?"I":"", tv_found->code);
// if we are closer to ntsc version of framerate, let gpu know
int ifps = (int)(fps+0.5f);
bool ntsc_freq = fabs(fps*1001.0f/1000.0f - ifps) < fabs(fps-ifps);
char response[80];
//.........这里部分代码省略.........