FGFS-4.1/OpenSceneGraph
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From Stephane Lamoliatte, "Here is a patch wich improves the support for geometry shaders in OpenSceneGraph.

Browse Source 
It adds new PrimitiveSet constants for the specific geometry shader primitive types :
  - LINES_ADJACENCY
  - LINE_STRIP_ADJACENCY
  - TRIANGLES_ADJACENCY
  - TRIANGLE_STRIP_ADJACENCY
It also adds some missing features to the glsl reader plug'in.
"
This commit is contained in:
Robert Osfield 2009-10-10 09:41:28 +00:00
parent 41b0c923e6
commit 10deffdc41
3 changed files with 15 additions and 1 deletions
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6
include/osg/PrimitiveSet
View File

@ -172,7 +172,11 @@ class OSG_EXPORT PrimitiveSet : public BufferData
TRIANGLE_FAN = GL_TRIANGLE_FAN,
QUADS = GL_QUADS,
QUAD_STRIP = GL_QUAD_STRIP,
POLYGON = GL_POLYGON
POLYGON = GL_POLYGON,
LINES_ADJACENCY = GL_LINES_ADJACENCY_EXT,
LINE_STRIP_ADJACENCY = GL_LINE_STRIP_ADJACENCY_EXT,
TRIANGLES_ADJACENCY = GL_TRIANGLES_ADJACENCY_EXT,
TRIANGLE_STRIP_ADJECENCY = GL_TRIANGLE_STRIP_ADJACENCY_EXT,
};
PrimitiveSet(Type primType=PrimitiveType,GLenum mode=0, int numInstances=0):

2
src/osgPlugins/glsl/ReaderWriterGLSL.cpp
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@ -17,6 +17,7 @@ class ReaderWriterGLSL : public osgDB::ReaderWriter
supportsExtension("gl","OpenGL Shader Language format");
supportsExtension("frag","OpenGL Shader Language format");
supportsExtension("vert","OpenGL Shader Language format");
supportsExtension("geom","OpenGL Shader Language format");
supportsExtension("glsl","OpenGL Shader Language format");
}
@ -71,6 +72,7 @@ class ReaderWriterGLSL : public osgDB::ReaderWriter
// set type based on filename extension, where possible
if (ext == "frag") shader->setType(osg::Shader::FRAGMENT);
if (ext == "vert") shader->setType(osg::Shader::VERTEX);
if (ext == "geom") shader->setType(osg::Shader::GEOMETRY);
}
}
return rr;

8
src/osgPlugins/osg/Geometry.cpp
View File

@ -1441,6 +1441,10 @@ bool Geometry_matchPrimitiveModeStr(const char* str,GLenum& mode)
else if (strcmp(str,"QUADS")==0) mode = PrimitiveSet::QUADS;
else if (strcmp(str,"QUAD_STRIP")==0) mode = PrimitiveSet::QUAD_STRIP;
else if (strcmp(str,"POLYGON")==0) mode = PrimitiveSet::POLYGON;
else if (strcmp(str,"LINES_ADJACENCY")==0) mode = PrimitiveSet::LINES_ADJACENCY;
else if (strcmp(str,"LINE_STRIP_ADJACENCY")==0) mode = PrimitiveSet::LINE_STRIP_ADJACENCY;
else if (strcmp(str,"TRIANGLES_ADJACENCY")==0) mode = PrimitiveSet::TRIANGLES_ADJACENCY;
else if (strcmp(str,"TRIANGLE_STRIP_ADJECENCY")==0) mode = PrimitiveSet::TRIANGLE_STRIP_ADJECENCY;
else return false;
return true;
}
@ -1460,6 +1464,10 @@ const char* Geometry_getPrimitiveModeStr(GLenum mode)
case (PrimitiveSet::QUADS) : return "QUADS";
case (PrimitiveSet::QUAD_STRIP) : return "QUAD_STRIP";
case (PrimitiveSet::POLYGON) : return "POLYGON";
case (PrimitiveSet::LINES_ADJACENCY) : return "LINES_ADJACENCY";
case (PrimitiveSet::LINE_STRIP_ADJACENCY) : return "LINE_STRIP_ADJACENCY";
case (PrimitiveSet::TRIANGLES_ADJACENCY) : return "TRIANGLES_ADJACENCY";
case (PrimitiveSet::TRIANGLE_STRIP_ADJECENCY) : return "TRIANGLE_STRIP_ADJECENCY";
default : return "UnknownPrimitveType";
}
}