class: ewol::resource::Program
Description:
Program is a compilation of some fragment Shader and vertex Shader. This construct automaticly this assiciation The input file must have the form : "myFile.prog" The data is simple : <pre> # Comment line ... paid attention at the space at the end of lines, they are considered like a part of the file ... # The folder is automaticly get from the program file basic folder filename1.vert filename2.frag filename3.vert filename4.frag </pre>Constructor and Destructor:
# Program ();
+ virtual ~Program ();
Synopsis:
# void init (const std::string & _filename);
+ DECLARE_RESOURCE_NAMED_FACTORY (Program );
+ int32_t getAttribute (std::string _elementName);
+ void sendAttribute (int32_t _idElem,
int32_t _nbElement,
const void* _pointer,
int32_t _jumpBetweenSample);
+ void sendAttributePointer (int32_t _idElem,
int32_t _nbElement,
const std::shared_ptr<ewol::resource::VirtualBufferObject> & _vbo,
int32_t _index,
int32_t _jumpBetweenSample,
int32_t _offset);
+ void sendAttribute (int32_t _idElem,
const std::vector<vec2> & _data);
+ void sendAttribute (int32_t _idElem,
const std::vector<vec3> & _data);
+ void sendAttribute (int32_t _idElem,
const std::vector<etk::Color<float>> & _data);
+ void sendAttribute (int32_t _idElem,
const std::vector<float> & _data);
+ int32_t getUniform (std::string _elementName);
+ void uniformMatrix4fv (int32_t _idElem,
int32_t _nbElement,
mat4 _pointer,
bool _transpose);
+ void uniform (int32_t _idElem,
const etk::Color<float> & _value);
+ void uniform1f (int32_t _idElem,
float _value1);
+ void uniform2f (int32_t _idElem,
float _value1,
float _value2);
+ void uniform3f (int32_t _idElem,
float _value1,
float _value2,
float _value3);
+ void uniform4f (int32_t _idElem,
float _value1,
float _value2,
float _value3,
float _value4);
+ void uniform1i (int32_t _idElem,
int32_t _value1);
+ void uniform2i (int32_t _idElem,
int32_t _value1,
int32_t _value2);
+ void uniform3i (int32_t _idElem,
int32_t _value1,
int32_t _value2,
int32_t _value3);
+ void uniform4i (int32_t _idElem,
int32_t _value1,
int32_t _value2,
int32_t _value3,
int32_t _value4);
+ void uniform1fv (int32_t _idElem,
int32_t _nbElement,
const float* _value);
+ void uniform2fv (int32_t _idElem,
int32_t _nbElement,
const float* _value);
+ void uniform3fv (int32_t _idElem,
int32_t _nbElement,
const float* _value);
+ void uniform4fv (int32_t _idElem,
int32_t _nbElement,
const float* _value);
+ void uniform1iv (int32_t _idElem,
int32_t _nbElement,
const int32_t* _value);
+ void uniform2iv (int32_t _idElem,
int32_t _nbElement,
const int32_t* _value);
+ void uniform3iv (int32_t _idElem,
int32_t _nbElement,
const int32_t* _value);
+ void uniform4iv (int32_t _idElem,
int32_t _nbElement,
const int32_t* _value);
+ void uniform2 (int32_t _idElem,
const vec2 & _value);
+ void uniform3 (int32_t _idElem,
const vec3 & _value);
+ void uniform4 (int32_t _idElem,
const vec4 & _value);
+ void uniform2 (int32_t _idElem,
const ivec2 & _value);
+ void uniform3 (int32_t _idElem,
const ivec3 & _value);
+ void uniform4 (int32_t _idElem,
const ivec4 & _value);
+ void use ();
+ void setTexture0 (int32_t _idElem,
GLint _textureOpenGlID);
+ void setTexture1 (int32_t _idElem,
GLint _textureOpenGlID);
+ void unUse ();
+ void updateContext ();
+ void removeContext ();
+ void removeContextToLate ();
+ void reload ();
Object Hierarchy:
+std::enable_shared_from_this<Object>
+ewol::object::ParameterList
+ewol::object::SignalList
+--> +ewol::Object
+--> +ewol::Resource
+--> ewol::resource::Program
Detail:
Program
# Program ();
Contructor of an opengl Program.
Parameter [input]: filename Standard file name format. see @ref etk::FSNode
init
# void init (const std::string & _filename);
DECLARE_RESOURCE_NAMED_FACTORY
+ DECLARE_RESOURCE_NAMED_FACTORY (Program );
~Program
+ virtual ~Program ();
Destructor, remove the current Program.
getAttribute
+ int32_t getAttribute (std::string _elementName);
User request an attribute on this program.
Note: The attribute is send to the fragment shaders
Parameter [input]: _elementName Name of the requested attribute.
Return: An abstract ID of the current attribute (this value is all time availlable, even if the program will be reloaded)
sendAttribute
+ void sendAttribute (int32_t _idElem,
int32_t _nbElement,
const void* _pointer,
int32_t _jumpBetweenSample);
Send attribute table to the spefified ID attribure (not send if does not really exist in the openGL program).
Parameter [input]: _idElem Id of the Attribute that might be sended.
Parameter [input]: _nbElement Specifies the number of elements that are to be modified.
Parameter [input]: _pointer Pointer on the data that might be sended.
Parameter [input]: _jumpBetweenSample Number of byte to jump between 2 vertex (this permit to enterlace informations)
sendAttributePointer
+ void sendAttributePointer (int32_t _idElem,
int32_t _nbElement,
const std::shared_ptr<ewol::resource::VirtualBufferObject> & _vbo,
int32_t _index,
int32_t _jumpBetweenSample,
int32_t _offset);
sendAttribute
+ void sendAttribute (int32_t _idElem,
const std::vector<vec2> & _data);
sendAttribute
+ void sendAttribute (int32_t _idElem,
const std::vector<vec3> & _data);
sendAttribute
+ void sendAttribute (int32_t _idElem,
const std::vector<etk::Color<float>> & _data);
sendAttribute
+ void sendAttribute (int32_t _idElem,
const std::vector<float> & _data);
getUniform
+ int32_t getUniform (std::string _elementName);
User request an Uniform on this program.
Note: uniform value is availlable for all the fragment shader in the program (only one value for all)
Parameter [input]: _elementName Name of the requested uniform.
Return: An abstract ID of the current uniform (this value is all time availlable, even if the program will be reloaded)
uniformMatrix4fv
+ void uniformMatrix4fv (int32_t _idElem,
int32_t _nbElement,
mat4 _pointer,
bool _transpose);
Send a uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _nbElement Specifies the number of elements that are to be modified. This should be 1 if the targeted uniform variable is not an array, and 1 or more if it is an array.
Parameter [input]: _pointer Pointer on the data that might be sended
Parameter [input]: _transpose Transpose the matrix (needed all the taime in the normal openGl access (only not done in the openGL-ES2 due to the fact we must done it ourself)
uniform
+ void uniform (int32_t _idElem,
const etk::Color<float> & _value);
uniform1f
+ void uniform1f (int32_t _idElem,
float _value1);
Send 1 float uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _value1 Value to send at the Uniform
uniform2f
+ void uniform2f (int32_t _idElem,
float _value1,
float _value2);
Send 2 float uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _value1 Value to send at the Uniform
Parameter [input]: _value2 Value to send at the Uniform
uniform3f
+ void uniform3f (int32_t _idElem,
float _value1,
float _value2,
float _value3);
Send 3 float uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _value1 Value to send at the Uniform
Parameter [input]: _value2 Value to send at the Uniform
Parameter [input]: _value3 Value to send at the Uniform
uniform4f
+ void uniform4f (int32_t _idElem,
float _value1,
float _value2,
float _value3,
float _value4);
Send 4 float uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _value1 Value to send at the Uniform
Parameter [input]: _value2 Value to send at the Uniform
Parameter [input]: _value3 Value to send at the Uniform
Parameter [input]: _value4 Value to send at the Uniform
uniform1i
+ void uniform1i (int32_t _idElem,
int32_t _value1);
Send 1 signed integer uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _value1 Value to send at the Uniform
uniform2i
+ void uniform2i (int32_t _idElem,
int32_t _value1,
int32_t _value2);
Send 2 signed integer uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _value1 Value to send at the Uniform
Parameter [input]: _value2 Value to send at the Uniform
uniform3i
+ void uniform3i (int32_t _idElem,
int32_t _value1,
int32_t _value2,
int32_t _value3);
Send 3 signed integer uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _value1 Value to send at the Uniform
Parameter [input]: _value2 Value to send at the Uniform
Parameter [input]: _value3 Value to send at the Uniform
uniform4i
+ void uniform4i (int32_t _idElem,
int32_t _value1,
int32_t _value2,
int32_t _value3,
int32_t _value4);
Send 4 signed integer uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _value1 Value to send at the Uniform
Parameter [input]: _value2 Value to send at the Uniform
Parameter [input]: _value3 Value to send at the Uniform
Parameter [input]: _value4 Value to send at the Uniform
uniform1fv
+ void uniform1fv (int32_t _idElem,
int32_t _nbElement,
const float* _value);
Send "vec1" uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _nbElement Number of element sended
Parameter [input]: _value Pointer on the data
uniform2fv
+ void uniform2fv (int32_t _idElem,
int32_t _nbElement,
const float* _value);
Send "vec2" uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _nbElement Number of element sended
Parameter [input]: _value Pointer on the data
uniform3fv
+ void uniform3fv (int32_t _idElem,
int32_t _nbElement,
const float* _value);
Send "vec3" uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _nbElement Number of element sended
Parameter [input]: _value Pointer on the data
uniform4fv
+ void uniform4fv (int32_t _idElem,
int32_t _nbElement,
const float* _value);
Send "vec4" uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _nbElement Number of element sended
Parameter [input]: _value Pointer on the data
uniform1iv
+ void uniform1iv (int32_t _idElem,
int32_t _nbElement,
const int32_t* _value);
Send "ivec1" uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _nbElement Number of element sended
Parameter [input]: _value Pointer on the data
uniform2iv
+ void uniform2iv (int32_t _idElem,
int32_t _nbElement,
const int32_t* _value);
Send "ivec2" uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the Attribute that might be sended.
Parameter [input]: _nbElement Number of element sended
Parameter [input]: _value Pointer on the data
uniform3iv
+ void uniform3iv (int32_t _idElem,
int32_t _nbElement,
const int32_t* _value);
Send "ivec3" uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _nbElement Number of element sended
Parameter [input]: _value Pointer on the data
uniform4iv
+ void uniform4iv (int32_t _idElem,
int32_t _nbElement,
const int32_t* _value);
Send "ivec4" uniform element to the spefified ID (not send if does not really exist in the openGL program)
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _nbElement Number of element sended
Parameter [input]: _value Pointer on the data
uniform2
+ void uniform2 (int32_t _idElem,
const vec2 & _value);
uniform3
+ void uniform3 (int32_t _idElem,
const vec3 & _value);
uniform4
+ void uniform4 (int32_t _idElem,
const vec4 & _value);
uniform2
+ void uniform2 (int32_t _idElem,
const ivec2 & _value);
uniform3
+ void uniform3 (int32_t _idElem,
const ivec3 & _value);
uniform4
+ void uniform4 (int32_t _idElem,
const ivec4 & _value);
use
+ void use ();
Request the processing of this program
setTexture0
+ void setTexture0 (int32_t _idElem,
GLint _textureOpenGlID);
set the testure Id on the specify uniform element.
Parameter [input]: _idElem Id of the uniform that might be sended.
Parameter [input]: _textureOpenGlID Real openGL texture ID
setTexture1
+ void setTexture1 (int32_t _idElem,
GLint _textureOpenGlID);
unUse
+ void unUse ();
Stop the processing of this program
updateContext
+ void updateContext ();
This load/reload the data in the opengl context, needed when removed previously.
removeContext
+ void removeContext ();
remove the data from the opengl context.
removeContextToLate
+ void removeContextToLate ();
Special android spec! It inform us that all context is removed and after notify us...
reload
+ void reload ();
Relode the shader from the file. used when a request of resouces reload is done.
Note: this is really usefull when we tested the new themes or shader developpements.
+std::enable_shared_from_this<Object>
+ewol::object::ParameterList
+ewol::object::SignalList
+--> +ewol::Object
+--> +ewol::Resource
+--> ewol::resource::Program
Detail:
Program
# Program ();Contructor of an opengl Program.
| Parameter [input]: | filename | Standard file name format. see @ref etk::FSNode |
init
# void init (const std::string & _filename);
DECLARE_RESOURCE_NAMED_FACTORY
+ DECLARE_RESOURCE_NAMED_FACTORY (Program );
~Program
+ virtual ~Program ();Destructor, remove the current Program.
getAttribute
+ int32_t getAttribute (std::string _elementName);User request an attribute on this program.
Note: The attribute is send to the fragment shaders
| Parameter [input]: | _elementName | Name of the requested attribute. |
| Return: | An abstract ID of the current attribute (this value is all time availlable, even if the program will be reloaded) |
sendAttribute
+ void sendAttribute (int32_t _idElem,Send attribute table to the spefified ID attribure (not send if does not really exist in the openGL program).
int32_t _nbElement,
const void* _pointer,
int32_t _jumpBetweenSample);
| Parameter [input]: | _idElem | Id of the Attribute that might be sended. | Parameter [input]: | _nbElement | Specifies the number of elements that are to be modified. | Parameter [input]: | _pointer | Pointer on the data that might be sended. | Parameter [input]: | _jumpBetweenSample | Number of byte to jump between 2 vertex (this permit to enterlace informations) |
sendAttributePointer
+ void sendAttributePointer (int32_t _idElem,
int32_t _nbElement,
const std::shared_ptr<ewol::resource::VirtualBufferObject> & _vbo,
int32_t _index,
int32_t _jumpBetweenSample,
int32_t _offset);
sendAttribute
+ void sendAttribute (int32_t _idElem,
const std::vector<vec2> & _data);
sendAttribute
+ void sendAttribute (int32_t _idElem,
const std::vector<vec3> & _data);
sendAttribute
+ void sendAttribute (int32_t _idElem,
const std::vector<etk::Color<float>> & _data);
sendAttribute
+ void sendAttribute (int32_t _idElem,
const std::vector<float> & _data);
getUniform
+ int32_t getUniform (std::string _elementName);User request an Uniform on this program.
Note: uniform value is availlable for all the fragment shader in the program (only one value for all)
| Parameter [input]: | _elementName | Name of the requested uniform. |
| Return: | An abstract ID of the current uniform (this value is all time availlable, even if the program will be reloaded) |
uniformMatrix4fv
+ void uniformMatrix4fv (int32_t _idElem,Send a uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
mat4 _pointer,
bool _transpose);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _nbElement | Specifies the number of elements that are to be modified. This should be 1 if the targeted uniform variable is not an array, and 1 or more if it is an array. | Parameter [input]: | _pointer | Pointer on the data that might be sended | Parameter [input]: | _transpose | Transpose the matrix (needed all the taime in the normal openGl access (only not done in the openGL-ES2 due to the fact we must done it ourself) |
uniform
+ void uniform (int32_t _idElem,
const etk::Color<float> & _value);
uniform1f
+ void uniform1f (int32_t _idElem,Send 1 float uniform element to the spefified ID (not send if does not really exist in the openGL program)
float _value1);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _value1 | Value to send at the Uniform |
uniform2f
+ void uniform2f (int32_t _idElem,Send 2 float uniform element to the spefified ID (not send if does not really exist in the openGL program)
float _value1,
float _value2);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _value1 | Value to send at the Uniform | Parameter [input]: | _value2 | Value to send at the Uniform |
uniform3f
+ void uniform3f (int32_t _idElem,Send 3 float uniform element to the spefified ID (not send if does not really exist in the openGL program)
float _value1,
float _value2,
float _value3);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _value1 | Value to send at the Uniform | Parameter [input]: | _value2 | Value to send at the Uniform | Parameter [input]: | _value3 | Value to send at the Uniform |
uniform4f
+ void uniform4f (int32_t _idElem,Send 4 float uniform element to the spefified ID (not send if does not really exist in the openGL program)
float _value1,
float _value2,
float _value3,
float _value4);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _value1 | Value to send at the Uniform | Parameter [input]: | _value2 | Value to send at the Uniform | Parameter [input]: | _value3 | Value to send at the Uniform | Parameter [input]: | _value4 | Value to send at the Uniform |
uniform1i
+ void uniform1i (int32_t _idElem,Send 1 signed integer uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _value1);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _value1 | Value to send at the Uniform |
uniform2i
+ void uniform2i (int32_t _idElem,Send 2 signed integer uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _value1,
int32_t _value2);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _value1 | Value to send at the Uniform | Parameter [input]: | _value2 | Value to send at the Uniform |
uniform3i
+ void uniform3i (int32_t _idElem,Send 3 signed integer uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _value1,
int32_t _value2,
int32_t _value3);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _value1 | Value to send at the Uniform | Parameter [input]: | _value2 | Value to send at the Uniform | Parameter [input]: | _value3 | Value to send at the Uniform |
uniform4i
+ void uniform4i (int32_t _idElem,Send 4 signed integer uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _value1,
int32_t _value2,
int32_t _value3,
int32_t _value4);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _value1 | Value to send at the Uniform | Parameter [input]: | _value2 | Value to send at the Uniform | Parameter [input]: | _value3 | Value to send at the Uniform | Parameter [input]: | _value4 | Value to send at the Uniform |
uniform1fv
+ void uniform1fv (int32_t _idElem,Send "vec1" uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
const float* _value);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _nbElement | Number of element sended | Parameter [input]: | _value | Pointer on the data |
uniform2fv
+ void uniform2fv (int32_t _idElem,Send "vec2" uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
const float* _value);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _nbElement | Number of element sended | Parameter [input]: | _value | Pointer on the data |
uniform3fv
+ void uniform3fv (int32_t _idElem,Send "vec3" uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
const float* _value);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _nbElement | Number of element sended | Parameter [input]: | _value | Pointer on the data |
uniform4fv
+ void uniform4fv (int32_t _idElem,Send "vec4" uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
const float* _value);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _nbElement | Number of element sended | Parameter [input]: | _value | Pointer on the data |
uniform1iv
+ void uniform1iv (int32_t _idElem,Send "ivec1" uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
const int32_t* _value);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _nbElement | Number of element sended | Parameter [input]: | _value | Pointer on the data |
uniform2iv
+ void uniform2iv (int32_t _idElem,Send "ivec2" uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
const int32_t* _value);
| Parameter [input]: | _idElem | Id of the Attribute that might be sended. | Parameter [input]: | _nbElement | Number of element sended | Parameter [input]: | _value | Pointer on the data |
uniform3iv
+ void uniform3iv (int32_t _idElem,Send "ivec3" uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
const int32_t* _value);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _nbElement | Number of element sended | Parameter [input]: | _value | Pointer on the data |
uniform4iv
+ void uniform4iv (int32_t _idElem,Send "ivec4" uniform element to the spefified ID (not send if does not really exist in the openGL program)
int32_t _nbElement,
const int32_t* _value);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _nbElement | Number of element sended | Parameter [input]: | _value | Pointer on the data |
uniform2
+ void uniform2 (int32_t _idElem,
const vec2 & _value);
uniform3
+ void uniform3 (int32_t _idElem,
const vec3 & _value);
uniform4
+ void uniform4 (int32_t _idElem,
const vec4 & _value);
uniform2
+ void uniform2 (int32_t _idElem,
const ivec2 & _value);
uniform3
+ void uniform3 (int32_t _idElem,
const ivec3 & _value);
uniform4
+ void uniform4 (int32_t _idElem,
const ivec4 & _value);
use
+ void use ();Request the processing of this program
setTexture0
+ void setTexture0 (int32_t _idElem,set the testure Id on the specify uniform element.
GLint _textureOpenGlID);
| Parameter [input]: | _idElem | Id of the uniform that might be sended. | Parameter [input]: | _textureOpenGlID | Real openGL texture ID |
setTexture1
+ void setTexture1 (int32_t _idElem,
GLint _textureOpenGlID);
unUse
+ void unUse ();Stop the processing of this program
updateContext
+ void updateContext ();This load/reload the data in the opengl context, needed when removed previously.
removeContext
+ void removeContext ();remove the data from the opengl context.
removeContextToLate
+ void removeContextToLate ();Special android spec! It inform us that all context is removed and after notify us...
reload
+ void reload ();Relode the shader from the file. used when a request of resouces reload is done.
Note: this is really usefull when we tested the new themes or shader developpements.