FGFS-4.1/OpenSceneGraph
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Added support in DisplaySettings and OscCameraGroup for requesting accumulator buffer.

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This commit is contained in:
Robert Osfield
2005-11-02 19:15:18 +00:00
parent df2299cb50
commit f3cfe97da9
3 changed files with 43 additions and 1 deletions
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12
include/osg/DisplaySettings
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@@ -156,11 +156,17 @@ class OSG_EXPORT DisplaySettings : public osg::Referenced
unsigned int getMinimumNumAlphaBits() const { return _minimumNumberAlphaBits; }
bool getAlphaBuffer() const { return _minimumNumberAlphaBits!=0; }
void setMinimumNumStencilBits(unsigned int bits) { _minimumNumberStencilBits = bits; }
unsigned int getMinimumNumStencilBits() const { return _minimumNumberStencilBits; }
bool getStencilBuffer() const { return _minimumNumberStencilBits!=0; }
void setMinimumNumAccumBits(unsigned int red, unsigned int green, unsigned int blue, unsigned int alpha);
unsigned int getMinimumNumAccumRedBits() const { return _minimumNumberAccumRedBits; }
unsigned int getMinimumNumAccumGreenBits() const { return _minimumNumberAccumGreenBits; }
unsigned int getMinimumNumAccumBlueBits() const { return _minimumNumberAccumBlueBits; }
unsigned int getMinimumNumAccumAlphaBits() const { return _minimumNumberAccumAlphaBits; }
bool getAccumBuffer() const { return (_minimumNumberAccumRedBits+_minimumNumberAccumGreenBits+_minimumNumberAccumBlueBits+_minimumNumberAccumAlphaBits)!=0; }
void setMaxNumberOfGraphicsContexts(unsigned int num) { _maxNumOfGraphicsContexts = num; }
unsigned int getMaxNumberOfGraphicsContexts() const { return _maxNumOfGraphicsContexts; }
@@ -190,6 +196,10 @@ class OSG_EXPORT DisplaySettings : public osg::Referenced
bool _depthBuffer;
unsigned int _minimumNumberAlphaBits;
unsigned int _minimumNumberStencilBits;
unsigned int _minimumNumberAccumRedBits;
unsigned int _minimumNumberAccumGreenBits;
unsigned int _minimumNumberAccumBlueBits;
unsigned int _minimumNumberAccumAlphaBits;
unsigned int _maxNumOfGraphicsContexts;

24
src/osg/DisplaySettings.cpp
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@@ -108,10 +108,22 @@ void DisplaySettings::setDefaults()
_depthBuffer = true;
_minimumNumberAlphaBits = 0;
_minimumNumberStencilBits = 0;
_minimumNumberAccumRedBits = 0;
_minimumNumberAccumGreenBits = 0;
_minimumNumberAccumBlueBits = 0;
_minimumNumberAccumAlphaBits = 0;
_maxNumOfGraphicsContexts = 3;
}
void DisplaySettings::setMinimumNumAccumBits(unsigned int red, unsigned int green, unsigned int blue, unsigned int alpha)
{
_minimumNumberAccumRedBits = red;
_minimumNumberAccumGreenBits = green;
_minimumNumberAccumBlueBits = blue;
_minimumNumberAccumAlphaBits = alpha;
}
static ApplicationUsageProxy DisplaySetting_e0(ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_DISPLAY_TYPE <type>","MONITOR | POWERWALL | REALITY_CENTER | HEAD_MOUNTED_DISPLAY");
static ApplicationUsageProxy DisplaySetting_e1(ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_STEREO_MODE <mode>","QUAD_BUFFER | ANAGLYPHIC | HORIZONTAL_SPLIT | VERTICAL_SPLIT | LEFT_EYE | RIGHT_EYE | VERTICAL_INTERLACE | HORIZONTAL_INTERLACE");
static ApplicationUsageProxy DisplaySetting_e2(ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_STEREO <mode>","OFF | ON");
@@ -289,6 +301,8 @@ void DisplaySettings::readCommandLine(ArgumentParser& arguments)
arguments.getApplicationUsage()->addCommandLineOption("--stereo <mode>","ANAGLYPHIC | QUAD_BUFFER | HORIZONTAL_SPLIT | VERTICAL_SPLIT | LEFT_EYE | RIGHT_EYE | ON | OFF ");
arguments.getApplicationUsage()->addCommandLineOption("--rgba","Request a RGBA color buffer visual");
arguments.getApplicationUsage()->addCommandLineOption("--stencil","Request a stencil buffer visual");
arguments.getApplicationUsage()->addCommandLineOption("--accum-rgb","Request a rgb acummulator buffer visual");
arguments.getApplicationUsage()->addCommandLineOption("--accum-rgba","Request a rgb acummulator buffer visual");
}
std::string str;
@@ -326,4 +340,14 @@ void DisplaySettings::readCommandLine(ArgumentParser& arguments)
{
_minimumNumberStencilBits = 1;
}
while (arguments.read("--accum-rgb"))
{
setMinimumNumAccumBits(8,8,8,0);
}
while (arguments.read("--accum-rgba"))
{
setMinimumNumAccumBits(8,8,8,8);
}
}

8
src/osgProducer/OsgCameraGroup.cpp
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@@ -537,6 +537,14 @@ bool OsgCameraGroup::realize()
rs_vc->setDepthSize(24);
if (_ds->getAccumBuffer())
{
rs_vc->setAccumRedSize(_ds->getMinimumNumAccumRedBits());
rs_vc->setAccumGreenSize(_ds->getMinimumNumAccumGreenBits());
rs_vc->setAccumBlueSize(_ds->getMinimumNumAccumBlueBits());
rs_vc->setAccumAlphaSize(_ds->getMinimumNumAccumAlphaBits());
}
if (numMultiSamples)
{
#if defined( GLX_SAMPLES_SGIS )