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/*
* Copyright (C) 2012, 2015
* Binocle <http://binocle.com/>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Written by Olivier Letz <oletz@binocle.com>.
*/
#include "config.h"
#define GL_GLEXT_PROTOTYPES
#define GLX_GLXEXT_PROTOTYPES
#include "NvSDIout.h"
#include <GL/glx.h>
#include <NVCtrl/NVCtrlLib.h>
#include "base/msg.h"
#include "base/dbg.h"
#include "base/gettext.h"
#define _(string) gettext(string)
#include "NvSDIutils.h"
#define MAX_GPUS 4
#if defined __cplusplus
extern "C" {
#endif
CNvSDIout::CNvSDIout() : m_bInitialized(false)
{
for (int i = 0; i < 2; i++)
{
_sdi_tex[i] = 0;
}
_sdi_fbo = 0;
}
CNvSDIout::~CNvSDIout()
{
}
void CNvSDIout::init(int videoFormat) {
assert(!m_bInitialized);
// Open X display
Display *dpy = glXGetCurrentDisplay();
//scan the systems for GPUs
HGPUNV gpuList[MAX_GPUS];
int num_gpus = ScanHW(dpy, gpuList);
if (num_gpus < 1) {
msg::err("No GPU available for sdi output");
return;
}
//grab the first GPU for now for DVP
HGPUNV *gpu = &gpuList[0];
OutputOptions outputOptions;
//Set the output to be the same frame rate as the input here
outputOptions.video_format = videoFormat;
outputOptions.xscreen = gpu->deviceXScreen;
outputOptions.data_format = NV_CTRL_GVO_DATA_FORMAT_DUAL_R8G8B8_TO_DUAL_YCRCB422;
outputOptions.fql = 5;
outputOptions.sync_source = NV_CTRL_GVO_SYNC_SOURCE_SDI;
outputOptions.sync_mode = NV_CTRL_GVO_SYNC_MODE_FREE_RUNNING;
setOutputOptions(dpy, outputOptions);
bool ret = initOutputDeviceNVCtrl();
if (!ret) {
msg::err("Unable to init sdi output");
return;
}
// Get GLX functions
myGLXEnumerateVideoDevicesNV = reinterpret_cast<unsigned int* (*)(Display*, int, int*)>(
glXGetProcAddress(reinterpret_cast<const GLubyte*>("glXEnumerateVideoDevicesNV")));
myGLXBindVideoDeviceNV = reinterpret_cast<int (*)(Display*, unsigned int, unsigned int, const int*)>(
glXGetProcAddress(reinterpret_cast<const GLubyte*>("glXBindVideoDeviceNV")));
if (!myGLXEnumerateVideoDevicesNV || !myGLXBindVideoDeviceNV) {
msg::err("Error: cannot get GLX functions");
return;
}
// Enumerate available video devices.
unsigned int *videoDevices;
int numDevices;
videoDevices = myGLXEnumerateVideoDevicesNV(dpy, outputOptions.xscreen, &numDevices);
if (!videoDevices || numDevices <= 0) {
XFree(videoDevices);
msg::err("Error: could not enumerate video devices");
return;
}
msg::inf("Number of sdi devices: %d\n", numDevices);
// Bind first video device
int retCode = myGLXBindVideoDeviceNV(dpy, 1, videoDevices[0], NULL);
if (retCode != Success) {
XFree(videoDevices);
msg::wrn("Error: could not bind SDI video device");
return;
}
// Free list of available video devices, don't need it anymore.
XFree(videoDevices);
glGenFramebuffersEXT(1, &_sdi_fbo);
assert(glGetError() == GL_NO_ERROR);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _sdi_fbo);
assert(glGetError() == GL_NO_ERROR);
for (int i = 0; i < 2; i++)
{
glGenTextures(1, &(_sdi_tex[i]));
glBindTexture(GL_TEXTURE_2D, _sdi_tex[i]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16,
m_videoWidth, m_videoHeight, 0, GL_RGB, GL_SHORT, NULL);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT+i, GL_TEXTURE_2D, _sdi_tex[i], 0);
assert(glGetError() == GL_NO_ERROR);
}
GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
if (status != status == GL_FRAMEBUFFER_COMPLETE_EXT) {
switch (status) {
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT:
printf("FBO: Error: Framebuffer incomplete, incomplete attachment!\n");
break;
case GL_FRAMEBUFFER_UNSUPPORTED_EXT:
printf("FBO: Error: Unsupported framebuffer format!\n");
break;
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT:
printf("FBO: Error: Framebuffer incomplete, missing attachment!\n");
break;
case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT:
printf("FBO: Error: Framebuffer incomplete, attached images must have same dimensions!\n");
break;
case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT:
printf("FBO: Error: Framebuffer incomplete, attached images must have same format!\n");
break;
case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT:
printf("FBO: Error: Framebuffer incomplete, missing draw buffer!\n");
break;
case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT:
printf("FBO: Error: Framebuffer incomplete, missing read buffer!\n");
break;
default:
printf("FBO: Unknown error 0x%X (see glext.h)!\n", status);
break;
}
}
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
assert(glGetError() == GL_NO_ERROR);
m_bInitialized = true;
}
void CNvSDIout::deinit() {
m_bInitialized = false;
glDeleteFramebuffersEXT(1, &_sdi_fbo);
_sdi_fbo = 0;
for (int i = 0; i < 2; i++)
{
if (_sdi_tex[i] != 0)
{
glDeleteTextures(1, &(_sdi_tex[i]));
_sdi_tex[i] = 0;
}
}
if (Success != myGLXBindVideoDeviceNV(_display, 1, 0, NULL))
{
msg::wrn("Error: could not release video device");
}
destroyOutputDeviceNVCtrl();
}
void CNvSDIout::reinit(int videoFormat) {
deinit();
init(videoFormat);
}
void CNvSDIout::setOutputOptions(Display *display, const OutputOptions &outputOptions)
{
_display = display;
m_outputOptions = outputOptions;
}
bool CNvSDIout::initOutputDeviceNVCtrl()
{
int value;
// Query NV_CTRL_GVO support.
if (!XNVCTRLQueryAttribute(_display, m_outputOptions.xscreen, 0,
NV_CTRL_GVO_SUPPORTED, &value)) {
return false;
}
// Set video format
XNVCTRLSetAttribute(_display, m_outputOptions.xscreen, 0,
NV_CTRL_GVO_OUTPUT_VIDEO_FORMAT, m_outputOptions.video_format);
// Set data format format.
XNVCTRLSetAttribute(_display, m_outputOptions.xscreen, 0,
NV_CTRL_GVO_DATA_FORMAT,
m_outputOptions.data_format);
// Set sync mode
XNVCTRLSetAttribute(_display, m_outputOptions.xscreen, 0,
NV_CTRL_GVO_SYNC_MODE, m_outputOptions.sync_mode);
// Set sync source
XNVCTRLSetAttribute(_display, m_outputOptions.xscreen, 0,
NV_CTRL_GVO_SYNC_SOURCE, m_outputOptions.sync_source);
// Set flip queue length
XNVCTRLSetAttribute(_display, m_outputOptions.xscreen, 0,
NV_CTRL_GVO_FLIP_QUEUE_SIZE, m_outputOptions.fql);
// Enable full-range color output ([4-1019] instead of [64-940])
XNVCTRLSetAttribute(_display, m_outputOptions.xscreen, 0, NV_CTRL_GVO_FULL_RANGE_COLOR,
NV_CTRL_GVO_FULL_RANGE_COLOR_ENABLED);
XNVCTRLQueryAttribute (_display,
m_outputOptions.xscreen,
m_outputOptions.video_format,
NV_CTRL_GVIO_VIDEO_FORMAT_WIDTH,
&m_videoWidth);
XNVCTRLQueryAttribute (_display,
m_outputOptions.xscreen,
m_outputOptions.video_format,
NV_CTRL_GVIO_VIDEO_FORMAT_HEIGHT,
&m_videoHeight);
XFlush(_display);
return true;
}
bool CNvSDIout::destroyOutputDeviceNVCtrl()
{
return true;
}
void CNvSDIout::sendTextures()
{
assert(glGetError() == GL_NO_ERROR);
assert(m_bInitialized);
glPresentFrameDualFillNV(1, 0, 0, 0, GL_FRAME_NV,
GL_TEXTURE_2D, _sdi_tex[0],
GL_NONE, 0,
GL_TEXTURE_2D, _sdi_tex[1],
GL_NONE, 0);
assert(glGetError() == GL_NO_ERROR);
}
void CNvSDIout::startRenderingTo(int textureIndex)
{
assert(m_bInitialized);
assert(glGetError() == GL_NO_ERROR);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _sdi_fbo);
assert(glGetError() == GL_NO_ERROR);
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT + textureIndex);
assert(glGetError() == GL_NO_ERROR);
}
void CNvSDIout::stopRenderingTo()
{
assert(m_bInitialized);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
assert(glGetError() == GL_NO_ERROR);
}
#if defined __cplusplus
} /* extern "C" */
#endif
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