本文整理汇总了C++中VideoFormat::bitsPerComponent方法的典型用法代码示例。如果您正苦于以下问题：C++ VideoFormat::bitsPerComponent方法的具体用法？C++ VideoFormat::bitsPerComponent怎么用？C++ VideoFormat::bitsPerComponent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VideoFormat的用法示例。
在下文中一共展示了VideoFormat::bitsPerComponent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: videoFormatToGL
//.........这里部分代码省略.........
{VideoFormat::Format_BGR565, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV}, // es error, use channel map
#endif
#ifdef GL_UNSIGNED_SHORT_1_5_5_5_REV
{VideoFormat::Format_RGB555, GL_RGBA, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV},
#endif
#ifdef GL_UNSIGNED_SHORT_1_5_5_5_REV
{VideoFormat::Format_BGR555, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV},
#endif
// TODO: BE formats not implemeted
{VideoFormat::Format_RGB48, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT }, //TODO: they are not work for ANGLE, and rgb16 works on desktop gl, so remove these lines to use rgb16?
{VideoFormat::Format_RGB48LE, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT },
{VideoFormat::Format_RGB48BE, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT },
{VideoFormat::Format_BGR48, GL_RGB, GL_BGR, GL_UNSIGNED_SHORT }, //RGB16?
{VideoFormat::Format_BGR48LE, GL_RGB, GL_BGR, GL_UNSIGNED_SHORT },
{VideoFormat::Format_BGR48BE, GL_RGB, GL_BGR, GL_UNSIGNED_SHORT },
{VideoFormat::Format_RGBA64LE, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT },
{VideoFormat::Format_RGBA64BE, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT },
{VideoFormat::Format_BGRA64LE, GL_RGBA, GL_BGRA, GL_UNSIGNED_SHORT },
{VideoFormat::Format_BGRA64BE, GL_RGBA, GL_BGRA, GL_UNSIGNED_SHORT },
{VideoFormat::Format_Invalid, 0, 0, 0}
};
Q_UNUSED(pixfmt_to_desktop);
const fmt_entry *pixfmt_gl_entry = pixfmt_to_desktop;
if (OpenGLHelper::isOpenGLES())
pixfmt_gl_entry = pixfmt_to_gles;
// Very special formats, for which OpenGL happens to have direct support
static const fmt_entry pixfmt_gl_base[] = {
{VideoFormat::Format_RGBA32, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE }, // only tested for osx, win, angle
{VideoFormat::Format_RGB24, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE },
{VideoFormat::Format_RGB565, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5},
{VideoFormat::Format_BGR32, GL_BGRA, GL_BGRA, GL_UNSIGNED_BYTE }, //rgba(tested) or abgr, depending on endian
};
const VideoFormat::PixelFormat pixfmt = fmt.pixelFormat();
// can not use array size because pixfmt_gl_entry is set on runtime
for (const fmt_entry* e = pixfmt_gl_entry; e->pixfmt != VideoFormat::Format_Invalid; ++e) {
if (e->pixfmt == pixfmt) {
*internal_format = e->internal_format;
*data_format = e->format;
*data_type = e->type;
if (mat)
*mat = QMatrix4x4();
return true;
}
}
for (size_t i = 0; i < ARRAY_SIZE(pixfmt_gl_base); ++i) {
const fmt_entry& e = pixfmt_gl_base[i];
if (e.pixfmt == pixfmt) {
*internal_format = e.internal_format;
*data_format = e.format;
*data_type = e.type;
if (mat)
*mat = QMatrix4x4();
return true;
}
}
static const fmt_entry pixfmt_to_gl_swizzele[] = {
{VideoFormat::Format_UYVY, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE },
{VideoFormat::Format_YUYV, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE },
{VideoFormat::Format_VYUY, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE },
{VideoFormat::Format_YVYU, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE },
{VideoFormat::Format_BGR565, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5}, //swizzle
{VideoFormat::Format_RGB555, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1}, //not working
{VideoFormat::Format_BGR555, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1}, //not working
};
for (size_t i = 0; i < ARRAY_SIZE(pixfmt_to_gl_swizzele); ++i) {
const fmt_entry& e = pixfmt_to_gl_swizzele[i];
if (e.pixfmt == pixfmt) {
*internal_format = e.internal_format;
*data_format = e.format;
*data_type = e.type;
if (mat)
*mat = channelMap(fmt);
return true;
}
}
GLint *i_f = internal_format;
GLenum *d_f = data_format;
GLenum *d_t = data_type;
gl_param_t* gp = (gl_param_t*)get_gl_param();
if (gp == gl_param_desktop && (
fmt.planeCount() == 2 // nv12 UV plane is 16bit, but we use rg
|| (OpenGLHelper::depth16BitTexture() == 16 && OpenGLHelper::has16BitTexture() && fmt.isBigEndian() && fmt.bitsPerComponent() > 8) // 16bit texture does not support be channel now
)) {
gp = (gl_param_t*)gl_param_desktop_fallback;
qDebug("desktop_fallback for %s", fmt.planeCount() == 2 ? "bi-plane format" : "16bit big endian channel");
}
for (int p = 0; p < fmt.planeCount(); ++p) {
// for packed rgb(swizzle required) and planar formats
const int c = (fmt.channels(p)-1) + 4*((fmt.bitsPerComponent() + 7)/8 - 1);
if (gp[c].format == 0)
return false;
const gl_param_t& f = gp[c];
*(i_f++) = f.internal_format;
*(d_f++) = f.format;
*(d_t++) = f.type;
}
if (mat)
*mat = channelMap(fmt);
return true;
}