2003-07-15 18:45:46 +08:00
|
|
|
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
|
|
|
|
|
* Copyright (C) 2003 3Dlabs Inc. Ltd.
|
|
|
|
|
*
|
|
|
|
|
* This application is open source and may be redistributed and/or modified
|
|
|
|
|
* freely and without restriction, both in commericial and non commericial
|
|
|
|
|
* applications, as long as this copyright notice is maintained.
|
|
|
|
|
*
|
|
|
|
|
* This application is distributed in the hope that it will be useful,
|
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/* file: include/osgGL2/Extensions
|
2003-10-05 19:30:54 +08:00
|
|
|
* author: Mike Weiblen 2003-09-12
|
2003-07-15 18:45:46 +08:00
|
|
|
*
|
|
|
|
|
* See http://www.3dlabs.com/opengl2/ for more information regarding
|
|
|
|
|
* the OpenGL Shading Language.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef OSGGL2_EXTENSIONS
|
|
|
|
|
#define OSGGL2_EXTENSIONS 1
|
|
|
|
|
|
|
|
|
|
#include <osg/Referenced>
|
|
|
|
|
#include <osg/GL>
|
|
|
|
|
#include <osgGL2/Export>
|
|
|
|
|
|
|
|
|
|
// If not defined by gl.h use the definitions found in the
|
|
|
|
|
// arb_shader_objects, arb_vertex_shader, and arb_fragment_shader
|
|
|
|
|
// specificiations.
|
|
|
|
|
|
|
|
|
|
#if !defined(GL_ARB_vertex_shader) && !defined(GL_ARB_fragment_shader) && !defined(GL_ARB_shader_objects) //(
|
|
|
|
|
|
|
|
|
|
typedef int GLhandleARB;
|
|
|
|
|
typedef char GLcharARB;
|
|
|
|
|
|
|
|
|
|
#define GL_PROGRAM_OBJECT_ARB 0x8B40
|
|
|
|
|
#define GL_OBJECT_TYPE_ARB 0x8B4E
|
|
|
|
|
#define GL_OBJECT_SUBTYPE_ARB 0x8B4F
|
|
|
|
|
|
|
|
|
|
#define GL_SHADER_OBJECT_ARB 0x8B48
|
|
|
|
|
#define GL_FLOAT_VEC2_ARB 0x8B50
|
|
|
|
|
#define GL_FLOAT_VEC3_ARB 0x8B51
|
|
|
|
|
#define GL_FLOAT_VEC4_ARB 0x8B52
|
|
|
|
|
#define GL_INT_VEC2_ARB 0x8B53
|
|
|
|
|
#define GL_INT_VEC3_ARB 0x8B54
|
|
|
|
|
#define GL_INT_VEC4_ARB 0x8B55
|
|
|
|
|
#define GL_BOOL_ARB 0x8B56
|
|
|
|
|
#define GL_BOOL_VEC2_ARB 0x8B57
|
|
|
|
|
#define GL_BOOL_VEC3_ARB 0x8B58
|
|
|
|
|
#define GL_BOOL_VEC4_ARB 0x8B59
|
|
|
|
|
#define GL_FLOAT_MAT2_ARB 0x8B5A
|
|
|
|
|
#define GL_FLOAT_MAT3_ARB 0x8B5B
|
|
|
|
|
#define GL_FLOAT_MAT4_ARB 0x8B5C
|
|
|
|
|
|
|
|
|
|
#define GL_VERTEX_SHADER_ARB 0x8B31
|
|
|
|
|
#define GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB 0x8B4A
|
|
|
|
|
#define GL_MAX_VERTEX_ATTRIBS_ARB 0x8869
|
|
|
|
|
#define GL_MAX_TEXTURE_IMAGE_UNITS_ARB 0x8872
|
|
|
|
|
#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB 0x8B4C
|
|
|
|
|
#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB 0x8B4D
|
|
|
|
|
#define GL_MAX_TEXTURE_COORDS_ARB 0x8871
|
|
|
|
|
|
|
|
|
|
#define GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB 0x8622
|
|
|
|
|
#define GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB 0x8623
|
|
|
|
|
#define GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB 0x8624
|
|
|
|
|
#define GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB 0x8625
|
|
|
|
|
#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB 0x886A
|
|
|
|
|
#define GL_CURRENT_VERTEX_ATTRIB_ARB 0x8626
|
|
|
|
|
#define GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB 0x8645
|
|
|
|
|
|
|
|
|
|
#define GL_FRAGMENT_SHADER_ARB 0x8B30
|
|
|
|
|
#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB 0x8B49
|
|
|
|
|
|
|
|
|
|
#define GL_MAX_VARYING_FLOATS_ARB 0x8B4B
|
|
|
|
|
|
|
|
|
|
#define GL_VERTEX_PROGRAM_POINT_SIZE_ARB 0x8642
|
|
|
|
|
#define GL_VERTEX_PROGRAM_TWO_SIDE_ARB 0x8643
|
|
|
|
|
|
|
|
|
|
#define GL_OBJECT_DELETE_STATUS_ARB 0x8B80
|
|
|
|
|
#define GL_OBJECT_COMPILE_STATUS_ARB 0x8B81
|
|
|
|
|
#define GL_OBJECT_LINK_STATUS_ARB 0x8B82
|
|
|
|
|
#define GL_OBJECT_VALIDATE_STATUS_ARB 0x8B83
|
|
|
|
|
#define GL_OBJECT_INFO_LOG_LENGTH_ARB 0x8B84
|
|
|
|
|
#define GL_OBJECT_ATTACHED_OBJECTS_ARB 0x8B85
|
|
|
|
|
#define GL_OBJECT_ACTIVE_UNIFORMS_ARB 0x8B86
|
|
|
|
|
#define GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB 0x8B87
|
|
|
|
|
#define GL_OBJECT_SHADER_SOURCE_LENGTH_ARB 0x8B88
|
|
|
|
|
#define GL_OBJECT_ACTIVE_ATTRIBUTE_MAX_LENGTH_ARB 0x8B8A
|
|
|
|
|
#define GL_OBJECT_ACTIVE_ATTRIBUTES_ARB 0x8B89
|
|
|
|
|
|
|
|
|
|
#endif //)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
namespace osgGL2 {
|
|
|
|
|
|
|
|
|
|
/** Extensions class which encapsulates the querying of extensions and
|
|
|
|
|
* associated function pointers, and provide convenience wrappers to
|
|
|
|
|
* check for the extensions or use the associated functions.*/
|
|
|
|
|
class OSGGL2_EXPORT Extensions : public osg::Referenced
|
|
|
|
|
{
|
|
|
|
|
public:
|
|
|
|
|
Extensions();
|
|
|
|
|
|
|
|
|
|
Extensions(const Extensions& rhs);
|
|
|
|
|
|
|
|
|
|
void lowestCommonDenominator(const Extensions& rhs);
|
|
|
|
|
|
|
|
|
|
void setupGLExtensions();
|
|
|
|
|
|
|
|
|
|
void setShaderObjectsSupported(bool flag) { _isShaderObjectsSupported = flag; }
|
|
|
|
|
bool isShaderObjectsSupported() const { return _isShaderObjectsSupported; }
|
|
|
|
|
|
|
|
|
|
void setVertexShaderSupported(bool flag) { _isVertexShaderSupported = flag; }
|
|
|
|
|
bool isVertexShaderSupported() const { return _isVertexShaderSupported; }
|
|
|
|
|
|
|
|
|
|
void setFragmentShaderSupported(bool flag) { _isFragmentShaderSupported = flag; }
|
|
|
|
|
bool isFragmentShaderSupported() const { return _isFragmentShaderSupported; }
|
|
|
|
|
|
|
|
|
|
/** Function to call to get the extension of a specified context.
|
|
|
|
|
* If the Exentsion object for that context has not yet been created then
|
|
|
|
|
* and the 'createIfNotInitalized' flag been set to false then returns NULL.
|
|
|
|
|
* If 'createIfNotInitalized' is true then the Extensions object is
|
|
|
|
|
* automatically created. However, in this case the extension object
|
|
|
|
|
* only be created with the graphics context associated with ContextID..*/
|
|
|
|
|
static Extensions* Get(unsigned int contextID,bool createIfNotInitalized);
|
|
|
|
|
|
|
|
|
|
/** allows users to override the extensions across graphics contexts.
|
|
|
|
|
* typically used when you have different extensions supported across graphics pipes
|
|
|
|
|
* but need to ensure that they all use the same low common denominator extensions.*/
|
|
|
|
|
static void Set(unsigned int contextID,Extensions* extensions);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
GLhandleARB glCreateShaderObject(GLenum shaderType) const;
|
|
|
|
|
GLhandleARB glCreateProgramObject() const;
|
|
|
|
|
void glDeleteObject(GLhandleARB obj) const;
|
|
|
|
|
void glAttachObject(GLhandleARB containerObj, GLhandleARB obj) const;
|
|
|
|
|
void glDetachObject(GLhandleARB containerObj, GLhandleARB attachedObj) const;
|
|
|
|
|
void glShaderSource(GLhandleARB shaderObj, GLsizei count, const GLcharARB **strings, const GLint *length) const;
|
|
|
|
|
void glCompileShader(GLhandleARB shaderObj) const;
|
|
|
|
|
void glBindAttribLocation(GLhandleARB programObj, GLuint index, const GLcharARB *name) const;
|
|
|
|
|
void glLinkProgram(GLhandleARB programObj) const;
|
|
|
|
|
void glUseProgramObject(GLhandleARB programObj) const;
|
|
|
|
|
void glGetInfoLog(GLhandleARB obj,GLsizei maxLength, GLsizei *length, GLcharARB *infoLog) const;
|
|
|
|
|
void glGetAttachedObjects(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj) const;
|
|
|
|
|
void glGetShaderSource(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source) const;
|
|
|
|
|
void glUniform1f(GLint location, GLfloat v0) const;
|
|
|
|
|
void glUniform2f(GLint location, GLfloat v0, GLfloat v1) const;
|
|
|
|
|
void glUniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) const;
|
|
|
|
|
void glUniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) const;
|
|
|
|
|
void glUniform1i(GLint location, GLint v0) const;
|
|
|
|
|
void glUniform2i(GLint location, GLint v0, GLint v1) const;
|
|
|
|
|
void glUniform3i(GLint location, GLint v0, GLint v1, GLint v2) const;
|
|
|
|
|
void glUniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3) const;
|
2003-10-05 19:30:54 +08:00
|
|
|
void glUniform1fv(GLint location, GLsizei count, const GLfloat *value) const;
|
|
|
|
|
void glUniform2fv(GLint location, GLsizei count, const GLfloat *value) const;
|
|
|
|
|
void glUniform3fv(GLint location, GLsizei count, const GLfloat *value) const;
|
|
|
|
|
void glUniform4fv(GLint location, GLsizei count, const GLfloat *value) const;
|
|
|
|
|
void glUniform1iv(GLint location, GLsizei count, const GLint *value) const;
|
|
|
|
|
void glUniform2iv(GLint location, GLsizei count, const GLint *value) const;
|
|
|
|
|
void glUniform3iv(GLint location, GLsizei count, const GLint *value) const;
|
|
|
|
|
void glUniform4iv(GLint location, GLsizei count, const GLint *value) const;
|
|
|
|
|
void glUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) const;
|
|
|
|
|
void glUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) const;
|
|
|
|
|
void glUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) const;
|
2003-07-15 18:45:46 +08:00
|
|
|
GLint glGetUniformLocation(GLhandleARB programObject, const GLcharARB *name) const;
|
|
|
|
|
GLint glGetAttribLocation(GLhandleARB programObj, const GLcharARB *name) const;
|
|
|
|
|
void glGetActiveUniform(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLint *type, GLcharARB *name) const;
|
|
|
|
|
void glGetActiveAttribs(GLhandleARB programObj, GLint *count, const GLint **size, const GLenum **type, const GLcharARB* const **attributes) const;
|
|
|
|
|
void glGetUniformfv(GLhandleARB programObj, GLint location, GLfloat *params) const;
|
|
|
|
|
void glGetUniformiv(GLhandleARB programObj, GLint location, GLint *params) const;
|
|
|
|
|
void glGetObjectParameterfv(GLhandleARB obj, GLenum pname, GLfloat *params) const;
|
|
|
|
|
void glGetObjectParameteriv(GLhandleARB obj, GLenum pname, GLint *params) const;
|
|
|
|
|
GLhandleARB glGetHandle(GLenum pname) const;
|
|
|
|
|
|
|
|
|
|
protected:
|
|
|
|
|
|
|
|
|
|
~Extensions() {}
|
|
|
|
|
|
|
|
|
|
bool _isShaderObjectsSupported;
|
|
|
|
|
bool _isVertexShaderSupported;
|
|
|
|
|
bool _isFragmentShaderSupported;
|
|
|
|
|
|
|
|
|
|
void* _glCreateShaderObject;
|
|
|
|
|
void* _glCreateProgramObject;
|
|
|
|
|
void* _glDeleteObject;
|
|
|
|
|
void* _glAttachObject;
|
|
|
|
|
void* _glDetachObject;
|
|
|
|
|
void* _glShaderSource;
|
|
|
|
|
void* _glCompileShader;
|
|
|
|
|
void* _glBindAttribLocation;
|
|
|
|
|
void* _glLinkProgram;
|
|
|
|
|
void* _glUseProgramObject;
|
|
|
|
|
void* _glGetInfoLog;
|
|
|
|
|
void* _glGetAttachedObjects;
|
|
|
|
|
void* _glGetShaderSource;
|
|
|
|
|
void* _glUniform1f;
|
|
|
|
|
void* _glUniform2f;
|
|
|
|
|
void* _glUniform3f;
|
|
|
|
|
void* _glUniform4f;
|
|
|
|
|
void* _glUniform1i;
|
|
|
|
|
void* _glUniform2i;
|
|
|
|
|
void* _glUniform3i;
|
|
|
|
|
void* _glUniform4i;
|
|
|
|
|
void* _glUniform1fv;
|
|
|
|
|
void* _glUniform2fv;
|
|
|
|
|
void* _glUniform3fv;
|
|
|
|
|
void* _glUniform4fv;
|
|
|
|
|
void* _glUniform1iv;
|
|
|
|
|
void* _glUniform2iv;
|
|
|
|
|
void* _glUniform3iv;
|
|
|
|
|
void* _glUniform4iv;
|
|
|
|
|
void* _glUniformMatrix2fv;
|
|
|
|
|
void* _glUniformMatrix3fv;
|
|
|
|
|
void* _glUniformMatrix4fv;
|
|
|
|
|
void* _glGetUniformLocation;
|
|
|
|
|
void* _glGetAttribLocation;
|
|
|
|
|
void* _glGetActiveUniform;
|
|
|
|
|
void* _glGetActiveAttribs;
|
|
|
|
|
void* _glGetUniformfv;
|
|
|
|
|
void* _glGetUniformiv;
|
|
|
|
|
void* _glGetObjectParameterfv;
|
|
|
|
|
void* _glGetObjectParameteriv;
|
|
|
|
|
void* _glGetHandle;
|
|
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
