FGFS-4.1/OpenSceneGraph
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Added tests for presense of extensions to osgcubemap, osgvertexproram and

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osgmultitexture examples.

Added osg::VertexProgram::Extensions class to better handle multiple graphics
context vertex program extensions.
This commit is contained in:
Robert Osfield
2003-04-10 19:32:32 +00:00
parent 52d2d8eaff
commit aaa761e333
8 changed files with 225 additions and 24 deletions
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8
src/osg/Texture.cpp
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@@ -850,6 +850,7 @@ Texture::Extensions::Extensions()
Texture::Extensions::Extensions(const Extensions& rhs):
Referenced()
{
_isMultiTexturingSupported = rhs._isMultiTexturingSupported;
_isTextureFilterAnisotropicSupported = rhs._isTextureFilterAnisotropicSupported;
_isTextureCompressionARBSupported = rhs._isTextureCompressionARBSupported;
_isTextureCompressionS3TCSupported = rhs._isTextureCompressionS3TCSupported;
@@ -865,6 +866,8 @@ Texture::Extensions::Extensions(const Extensions& rhs):
void Texture::Extensions::lowestCommonDenominator(const Extensions& rhs)
{
if (!rhs._isMultiTexturingSupported) _isMultiTexturingSupported = false;
if (!rhs._isTextureFilterAnisotropicSupported) _isTextureFilterAnisotropicSupported = false;
if (!rhs._isTextureMirroredRepeatSupported) _isTextureMirroredRepeatSupported = false;
if (!rhs._isTextureEdgeClampSupported) _isTextureEdgeClampSupported = false;
@@ -878,11 +881,16 @@ void Texture::Extensions::lowestCommonDenominator(const Extensions& rhs)
if (rhs._maxTextureSize<_maxTextureSize) _maxTextureSize = rhs._maxTextureSize;
if (!rhs._glCompressedTexImage2D) _glCompressedTexImage2D = 0;
if (!rhs._glCompressedTexSubImage2D) _glCompressedTexSubImage2D = 0;
if (!rhs._glGetCompressedTexImage) _glGetCompressedTexImage = 0;
}
void Texture::Extensions::setupGLExtenions()
{
_isMultiTexturingSupported = (strncmp((const char*)glGetString(GL_VERSION),"1.3",3)>=0) ||
isGLExtensionSupported("GL_ARB_multitexture") ||
isGLExtensionSupported("GL_EXT_multitexture");
_isTextureFilterAnisotropicSupported = isGLExtensionSupported("GL_EXT_texture_filter_anisotropic");
_isTextureCompressionARBSupported = isGLExtensionSupported("GL_ARB_texture_compression");
_isTextureCompressionS3TCSupported = isGLExtensionSupported("GL_EXT_texture_compression_s3tc");