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sgl Class Reference

#include <sgl.h>

List of all members.

Public Types
enum	CompressionVendor {   eCOMPRESSION_VENDOR_ARB,   eCOMPRESSION_VENDOR_S3 }
Public Methods
typedef	void (APIENTRY *multiTexCoordFunc)(GLenum, const GLfloat *)
Static Public Methods
void	initialize (ostream *default_stream=&cout)
GLuint	getDisplayList ()
void	releaseDisplayList (GLuint dlist)
void	deleteUnusedDisplayLists ()
GLuint	getTextureObj ()
void	releaseTextureObj (GLuint tex_obj)
void	deleteUnusedTextureObjs ()
unsigned int	nextPower2 (unsigned int val)
void*	getDLLHandle (const char *dll_name)
void*	getFuncPtr (void *dll, const char *func_name)
void*	getGLFuncPtr (const char *func_name)
	void (APIENTRY *drawRangeElements)(GLenum, GLuint, GLuint, GLsizei, GLenum, const GLvoid *)
	void (APIENTRY *setActiveTextureUnit)(GLenum)
	void (APIENTRY *setClientActiveTextureUnit)(GLenum)
multiTexCoordFunc	getMultiTexFunc (const char *type)
	void (APIENTRY *compressedTexImage2D)(GLenum, GLint, GLenum, GLsizei, GLsizei, GLint, GLsizei, const GLvoid *)
	void (APIENTRY *getCompressedTexImage)(GLenum, GLint, GLvoid *)
	void (APIENTRY *pointParameterf)(GLenum, GLfloat)
	void (APIENTRY *pointParameterfv)(GLenum, GLfloat *)
Static Public Attributes
bool	s_initialized
GLint	s_max_prefetch_indices
GLint	s_max_prefetch_vertices
GLint	s_max_texture_size
GLint	s_clamp_to_edge
GLenum	s_rescale_normal
float	s_max_texture_max_anisotropy
GLint	s_num_texture_units
multiTexCoordFunc	multiTexCoord1sv
multiTexCoordFunc	multiTexCoord2sv
multiTexCoordFunc	multiTexCoord3sv
multiTexCoordFunc	multiTexCoord4sv
multiTexCoordFunc	multiTexCoord1iv
multiTexCoordFunc	multiTexCoord2iv
multiTexCoordFunc	multiTexCoord3iv
multiTexCoordFunc	multiTexCoord4iv
multiTexCoordFunc	multiTexCoord1fv
multiTexCoordFunc	multiTexCoord2fv
multiTexCoordFunc	multiTexCoord3fv
multiTexCoordFunc	multiTexCoord4fv
multiTexCoordFunc	multiTexCoord1dv
multiTexCoordFunc	multiTexCoord2dv
multiTexCoordFunc	multiTexCoord3dv
multiTexCoordFunc	multiTexCoord4dv
unsigned int	s_num_statelet_types
GLenum	s_stencil_inc_wrap
GLenum	s_stencil_dec_wrap
GLint	s_num_stencil_bits
bool	s_multisample_capable
bool	s_texture_env_add_capable
bool	s_texture_env_combine_capable
bool	s_texture_env_dot3_capable
bool	s_occlusion_capable
GLenum	s_occlusion_enable_flag
GLenum	s_occlusion_result_flag
bool	s_texture_compression_capable
CompressionVendor	s_texture_compression_vendor
bool	s_auto_mipmap_capable
GLenum	s_auto_mipmap_enable_flag
bool	s_texture_lod_bias_capable
float	s_max_texture_lod_bias
bool	s_texture_lod_capable
bool	s_fog_distance_capable
bool	s_point_parameters_capable
float	s_point_default_size_min
float	s_point_default_size_max
float	s_point_default_fade_threshold
bool	s_texture_cube_map_capable
GLint	s_max_cube_map_texture_size
GLint	s_max_lights
Protected Methods
	sgl ()
	~sgl ()

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Detailed Description

NEED CLASS DESCRIPTION HERE.

Several environment variable can affect the runtime behavior of sgl. SGL_DATA_PATH - Defines the search path that sgl will use by default when loading data files. SGL_DISABLE_HARDWARE_MIPMAP - When set forces sgl to use a software algorithm for computing texture mipmaps. This may be necessary on machines with a broken implementation of the GL_EXT_generate_mipmap extension. SGL_DISABLE_VERTEX_PREFETCH - When set prevents sgl from using the glDrawRangeElements functions in the draw routines. SGL_NUM_TEXTURE_UNITS - When set sgl will use the lesser of the number automatically detected texture units and the value of the environment variable.

Definition at line 198 of file sgl.h.

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Constructor & Destructor Documentation

sgl::sgl ( ) [protected]

Not implemented. Don't use.

sgl::~sgl ( ) [protected]

Not implemented. Don't use.

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Member Function Documentation

void sgl::initialize ( ostream * default_stream = &cout ) [static]

This function should be called before any drawing is done with sgl. NOTE: a valid graphics context _must_ be made current before calling this function. Parameters: default_stream   the ostream to use with sglPrint() output

GLuint sgl::getDisplayList ( ) [static]

This function will allocate a new display list for use. NOTE: a valid graphics context _must_ be made current before calling this function. Returns: a new display list

void sgl::releaseDisplayList ( GLuint dlist ) [static]

This function will schedule the given display list for deletion. Parameters: dlist   display list to delete

void sgl::deleteUnusedDisplayLists ( ) [static]

This function should be called every once in a while to delete unused display lists. The preDraw() method of sglScene calls this function. NOTE: a valid graphics context _must_ be made current before calling this function.

GLuint sgl::getTextureObj ( ) [static]

This function will allocate a new texture object for use. NOTE: a valid graphics context _must_ be made current before calling this function. Returns: a new texture object

void sgl::releaseTextureObj ( GLuint tex_obj ) [static]

This function will schedule the given texture object for deletion. Parameters: tex_obj   texture object to delete

void sgl::deleteUnusedTextureObjs ( ) [static]

This function should be called every once in a while to delete unused texture objects. The preDraw() method of sglScene calls this function. NOTE: a valid graphics context _must_ be made current before calling this function.

unsigned int sgl::nextPower2 ( unsigned int val ) [static]

Gets the power of 2 that is greater or equal to the given value. Parameters: val   input value Returns: a power of 2 that is greater or equal to val

void* sgl::getDLLHandle ( const char * dll_name ) [static]

Loads a dynamically loadable library with the given name. Note that the true name of the dll actually loaded is system dependent: libdll_name.so on unix vs dll_name.dll on WIN32. Parameters: dll_name   name of dll to load Returns: a handle to the dll, or NULL if dll is not found

void* sgl::getFuncPtr ( void * dll, const char * func_name ) [static]

Gets a pointer to a function in the given dll. Parameters: dll   handle to the dll to load from func_name   name of the function to find Returns: function pointer, or NULL if function is not found

void* sgl::getGLFuncPtr ( const char * func_name ) [static]

Gets a pointer to a function in the opengl library. Parameters: func_name   name of the function to find Returns: function pointer, or NULL if function is not found

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The documentation for this class was generated from the following file:

• sgl.h

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