Ogre::GLSLESProgramPipeline Class Reference

Specialisation of HighLevelGpuProgram to provide support for OpenGL Shader Language (GLSL ES) for OpenGL ES 2.0. More...

`#include <OgreGLSLESProgramPipeline.h>`

Inheritance diagram for Ogre::GLSLESProgramPipeline:
[legend]

List of all members.

## Public Member Functions

| GLSLESProgramPipeline (GLSLESGpuProgram *vertexProgram, GLSLESGpuProgram *fragmentProgram)
| Constructor should only be used by GLSLESProgramPipelineManager.
virtual | ~GLSLESProgramPipeline ()
GLuint | getGLProgramPipelineHandle () const
| GL Program Pipeline Handle.
virtual void | updateUniforms (GpuProgramParametersSharedPtr params, uint16 mask, GpuProgramType fromProgType)
| Updates program pipeline object uniforms using data from GpuProgramParameters.
virtual void | updatePassIterationUniforms (GpuProgramParametersSharedPtr params)
| Updates program pipeline object uniforms using data from pass iteration GpuProgramParameters.
void | activate (void)
| Makes a program pipeline object active by making sure it is linked and then putting it in use.
virtual GLint | getAttributeIndex (VertexElementSemantic semantic, uint index)
| Get the index of a non-standard attribute bound in the linked code.
GLuint | getGLProgramHandle (void) const
| Get the GL Handle for the program object.
void | setSkeletalAnimationIncluded (bool included)
| Sets whether the linked program includes the required instructions to perform skeletal animation.
bool | isSkeletalAnimationIncluded (void) const
| Returns whether the linked program includes the required instructions to perform skeletal animation.
bool | isAttributeValid (VertexElementSemantic semantic, uint index)
| Is a non-standard attribute bound in the linked code?
GLSLESGpuProgram * | getVertexProgram (void) const
GLSLESGpuProgram * | getFragmentProgram (void) const

## Protected Types

enum | { VERTEX_PROGRAM_LINKED = 0x01, FRAGMENT_PROGRAM_LINKED = 0x10, ALL_PROGRAMS_LINKED = 0x11 }
typedef set< GLuint >::type | AttributeSet
typedef map< String, VertexElementSemantic >::type | SemanticToStringMap

## Protected Member Functions

virtual void | compileAndLink (void)
| Compiles and links the separate vertex and fragment programs.
virtual void | _useProgram (void)
| Put a program pipeline in use.
virtual void | extractLayoutQualifiers (void)
| Finds layout qualifiers in the shader source and sets attribute indices appropriately.
virtual void | buildGLUniformReferences (void)
| Build uniform references from active named uniforms.
Ogre::String | getCombinedName (void)
void | getMicrocodeFromCache (void)
| Get the the binary data of a program from the microcode cache.
VertexElementSemantic | getAttributeSemanticEnum (String type)
const char * | getAttributeSemanticString (VertexElementSemantic semantic)

## Protected Attributes

GLuint | mGLProgramPipelineHandle
| GL handle for pipeline object.
GLUniformReferenceList | mGLUniformReferences
| Container of uniform references that are active in the program object.
GLSLESGpuProgram * | mVertexProgram
| Linked vertex program.
GLSLESGpuProgram * | mFragmentProgram
| Linked fragment program.
bool | mUniformRefsBuilt
| Flag to indicate that uniform references have already been built.
GLuint | mGLProgramHandle
| GL handle for the program object.
GLint | mLinked
| Flag indicating that the program or pipeline object has been successfully linked.
bool | mTriedToLinkAndFailed
| Flag indicating that the program or pipeline object has tried to link and failed.
bool | mSkeletalAnimation
| Flag indicating skeletal animation is being performed.
GLint | mCustomAttributesIndexes [VES_COUNT][OGRE_MAX_TEXTURE_COORD_SETS]
| An array to hold the attributes indexes.
SemanticToStringMap | mSemanticTypeMap

## Detailed Description

Specialisation of HighLevelGpuProgram to provide support for OpenGL Shader Language (GLSL ES) for OpenGL ES 2.0.

Remarks:
  GLSL ES has no target assembler or entry point specification like DirectX 9 HLSL. Vertex and Fragment shaders only have one entry point called "main". When a shader is compiled, microcode is generated but can not be accessed by the application. GLSL ES also does not provide assembler low level output after compiling. The GL ES Render system assumes that the Gpu program is a GL Gpu program so GLSLESProgramPipeline will create a GLSLESGpuProgram that is subclassed from GLES2GpuProgram for the low level implementation. The GLES2Program class will create a shader and program object and compile the source but will not create a pipeline object. It's up to GLES2GpuProgram class to request a program pipeline object to link the program object to.

Note:
  GLSL ES supports multiple modular shader objects that can be attached to one program object to form a single shader. This is supported through the "attach" material script command. All the modules to be attached are listed on the same line as the attach command separated by white space.

Definition at line 56 of file OgreGLSLESProgramPipeline.h.

## Member Typedef Documentation

typedef set<GLuint>::type Ogre::GLSLESProgramCommon::AttributeSet`[protected, inherited]`

Definition at line 80 of file OgreGLSLESProgramCommon.h.

typedef map<String, VertexElementSemantic>::type Ogre::GLSLESProgramCommon::SemanticToStringMap`[protected, inherited]`

Definition at line 97 of file OgreGLSLESProgramCommon.h.

## Member Enumeration Documentation

anonymous enum`[protected]`

Enumerator:

  VERTEX_PROGRAM_LINKED |
  FRAGMENT_PROGRAM_LINKED |
  ALL_PROGRAMS_LINKED |

Definition at line 83 of file OgreGLSLESProgramPipeline.h.

## Constructor & Destructor Documentation

Ogre::GLSLESProgramPipeline::GLSLESProgramPipeline | ( | GLSLESGpuProgram * | vertexProgram,
|  | GLSLESGpuProgram * | fragmentProgram
| ) |  |

Constructor should only be used by GLSLESProgramPipelineManager.

virtual Ogre::GLSLESProgramPipeline::~GLSLESProgramPipeline | ( |  | ) | `[virtual]`

## Member Function Documentation

virtual void Ogre::GLSLESProgramPipeline::_useProgram | ( | void |  | ) | `[protected, virtual]`

Put a program pipeline in use.

Implements Ogre::GLSLESProgramCommon.

void Ogre::GLSLESProgramPipeline::activate | ( | void |  | ) | `[virtual]`

Makes a program pipeline object active by making sure it is linked and then putting it in use.

Implements Ogre::GLSLESProgramCommon.

virtual void Ogre::GLSLESProgramPipeline::buildGLUniformReferences | ( | void |  | ) | `[protected, virtual]`

Build uniform references from active named uniforms.

Reimplemented from Ogre::GLSLESProgramCommon.

virtual void Ogre::GLSLESProgramPipeline::compileAndLink | ( | void |  | ) | `[protected, virtual]`

Compiles and links the separate vertex and fragment programs.

Implements Ogre::GLSLESProgramCommon.

virtual void Ogre::GLSLESProgramPipeline::extractLayoutQualifiers | ( | void |  | ) | `[protected, virtual]`

Finds layout qualifiers in the shader source and sets attribute indices appropriately.

virtual GLint Ogre::GLSLESProgramPipeline::getAttributeIndex | ( | VertexElementSemantic | semantic,
|  | uint | index
| ) |  | `[virtual]`

Get the index of a non-standard attribute bound in the linked code.

Reimplemented from Ogre::GLSLESProgramCommon.

VertexElementSemantic Ogre::GLSLESProgramCommon::getAttributeSemanticEnum | ( | String | type | ) | `[protected, inherited]`

const char* Ogre::GLSLESProgramCommon::getAttributeSemanticString | ( | VertexElementSemantic | semantic | ) | `[protected, inherited]`

Ogre::String Ogre::GLSLESProgramCommon::getCombinedName | ( | void |  | ) | `[protected, inherited]`

GLSLESGpuProgram* Ogre::GLSLESProgramCommon::getFragmentProgram | ( | void |  | ) | const`[inherited]`

Definition at line 144 of file OgreGLSLESProgramCommon.h.

GLuint Ogre::GLSLESProgramCommon::getGLProgramHandle | ( | void |  | ) | const`[inherited]`

Get the GL Handle for the program object.

Definition at line 121 of file OgreGLSLESProgramCommon.h.

GLuint Ogre::GLSLESProgramPipeline::getGLProgramPipelineHandle | ( |  | ) | const

GL Program Pipeline Handle.

Definition at line 64 of file OgreGLSLESProgramPipeline.h.

void Ogre::GLSLESProgramCommon::getMicrocodeFromCache | ( | void |  | ) | `[protected, inherited]`

Get the the binary data of a program from the microcode cache.

GLSLESGpuProgram* Ogre::GLSLESProgramCommon::getVertexProgram | ( | void |  | ) | const`[inherited]`

Definition at line 143 of file OgreGLSLESProgramCommon.h.

bool Ogre::GLSLESProgramCommon::isAttributeValid | ( | VertexElementSemantic | semantic,
|  | uint | index
| ) |  | `[inherited]`

Is a non-standard attribute bound in the linked code?

bool Ogre::GLSLESProgramCommon::isSkeletalAnimationIncluded | ( | void |  | ) | const`[inherited]`

Returns whether the linked program includes the required instructions to perform skeletal animation.

Remarks:
  If this returns true, OGRE will not blend the geometry according to skeletal animation, it will expect the vertex program to do it.

Definition at line 136 of file OgreGLSLESProgramCommon.h.

void Ogre::GLSLESProgramCommon::setSkeletalAnimationIncluded | ( | bool | included | ) | `[inherited]`

Sets whether the linked program includes the required instructions to perform skeletal animation.

Remarks:
  If this is set to true, OGRE will not blend the geometry according to skeletal animation, it will expect the vertex program to do it.

Definition at line 128 of file OgreGLSLESProgramCommon.h.

virtual void Ogre::GLSLESProgramPipeline::updatePassIterationUniforms | ( | GpuProgramParametersSharedPtr | params | ) | `[virtual]`

Updates program pipeline object uniforms using data from pass iteration GpuProgramParameters.

normally called by GLSLESGpuProgram::bindMultiPassParameters() just before multi pass rendering occurs.

Implements Ogre::GLSLESProgramCommon.

virtual void Ogre::GLSLESProgramPipeline::updateUniforms | ( | GpuProgramParametersSharedPtr | params,
|  | uint16 | mask,
|  | GpuProgramType | fromProgType
| ) |  | `[virtual]`

Updates program pipeline object uniforms using data from GpuProgramParameters.

normally called by GLSLESGpuProgram::bindParameters() just before rendering occurs.

Implements Ogre::GLSLESProgramCommon.

## Member Data Documentation

GLint Ogre::GLSLESProgramCommon::mCustomAttributesIndexes[VES_COUNT][OGRE_MAX_TEXTURE_COORD_SETS]`[protected, inherited]`

An array to hold the attributes indexes.

Definition at line 83 of file OgreGLSLESProgramCommon.h.

GLSLESGpuProgram* Ogre::GLSLESProgramCommon::mFragmentProgram`[protected, inherited]`

Linked fragment program.

Definition at line 66 of file OgreGLSLESProgramCommon.h.

GLuint Ogre::GLSLESProgramCommon::mGLProgramHandle`[protected, inherited]`

GL handle for the program object.

Definition at line 70 of file OgreGLSLESProgramCommon.h.

GLuint Ogre::GLSLESProgramPipeline::mGLProgramPipelineHandle`[protected]`

GL handle for pipeline object.

Definition at line 89 of file OgreGLSLESProgramPipeline.h.

GLUniformReferenceList Ogre::GLSLESProgramCommon::mGLUniformReferences`[protected, inherited]`

Container of uniform references that are active in the program object.

Definition at line 61 of file OgreGLSLESProgramCommon.h.

GLint Ogre::GLSLESProgramCommon::mLinked`[protected, inherited]`

Flag indicating that the program or pipeline object has been successfully linked.

Definition at line 72 of file OgreGLSLESProgramCommon.h.

SemanticToStringMap Ogre::GLSLESProgramCommon::mSemanticTypeMap`[protected, inherited]`

Definition at line 98 of file OgreGLSLESProgramCommon.h.

bool Ogre::GLSLESProgramCommon::mSkeletalAnimation`[protected, inherited]`

Flag indicating skeletal animation is being performed.

Definition at line 76 of file OgreGLSLESProgramCommon.h.

bool Ogre::GLSLESProgramCommon::mTriedToLinkAndFailed`[protected, inherited]`

Flag indicating that the program or pipeline object has tried to link and failed.

Definition at line 74 of file OgreGLSLESProgramCommon.h.

bool Ogre::GLSLESProgramCommon::mUniformRefsBuilt`[protected, inherited]`

Flag to indicate that uniform references have already been built.

Definition at line 68 of file OgreGLSLESProgramCommon.h.

GLSLESGpuProgram* Ogre::GLSLESProgramCommon::mVertexProgram`[protected, inherited]`

Linked vertex program.

Definition at line 64 of file OgreGLSLESProgramCommon.h.

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

- OgreGLSLESProgramPipeline.h

Copyright © 2012 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun Sep 2 2012 07:28:04