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axmol/cocos/renderer/CCGLProgramState.cpp

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/****************************************************************************
Copyright 2011 Jeff Lamarche
Copyright 2012 Goffredo Marocchi
Copyright 2012 Ricardo Quesada
Copyright 2012 cocos2d-x.org
Copyright 2013-2014 Chukong Technologies Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN false EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "renderer/CCGLProgramState.h"
#include "renderer/CCGLProgram.h"
#include "renderer/CCGLProgramStateCache.h"
#include "renderer/CCGLProgramCache.h"
#include "renderer/ccGLStateCache.h"
#include "2d/CCTexture2D.h"
NS_CC_BEGIN
//
//
// UniformValue
//
//
UniformValue::UniformValue()
: _useCallback(false)
, _uniform(nullptr)
, _glprogram(nullptr)
{
}
UniformValue::UniformValue(Uniform *uniform, GLProgram* glprogram)
: _useCallback(false)
, _uniform(uniform)
, _glprogram(glprogram)
{
}
UniformValue::~UniformValue()
{
if (_useCallback)
delete _value.callback;
}
void UniformValue::apply()
{
if(_useCallback) {
(*_value.callback)(_uniform);
}
else
{
switch (_uniform->type) {
case GL_SAMPLER_2D:
_glprogram->setUniformLocationWith1i(_uniform->location, _value.tex.textureUnit);
GL::activeTexture(_value.tex.textureUnit);
GL::bindTexture2DN(_value.tex.textureUnit, _value.tex.textureId);
break;
case GL_INT:
_glprogram->setUniformLocationWith1i(_uniform->location, _value.intValue);
break;
case GL_FLOAT:
_glprogram->setUniformLocationWith1f(_uniform->location, _value.floatValue);
break;
case GL_FLOAT_VEC2:
_glprogram->setUniformLocationWith2f(_uniform->location, _value.v2Value[0], _value.v2Value[1]);
break;
case GL_FLOAT_VEC3:
_glprogram->setUniformLocationWith3f(_uniform->location, _value.v3Value[0], _value.v3Value[1], _value.v3Value[2]);
break;
case GL_FLOAT_VEC4:
_glprogram->setUniformLocationWith4f(_uniform->location, _value.v4Value[0], _value.v4Value[1], _value.v4Value[2], _value.v4Value[3]);
break;
case GL_FLOAT_MAT4:
_glprogram->setUniformLocationWithMatrix4fv(_uniform->location, (GLfloat*)&_value.matrixValue, 1);
break;
default:
CCASSERT(false, "Invalid UniformValue");
break;
}
}
}
void UniformValue::setCallback(const std::function<void(Uniform*)> &callback)
{
// delete previously set callback
// XXX TODO: memory will leak if the user does:
// value->setCallback();
// value->setFloat();
if (_useCallback)
delete _value.callback;
_value.callback = new std::function<void(Uniform*)>();
*_value.callback = callback;
_useCallback = true;
}
void UniformValue::setFloat(float value)
{
CCASSERT (_uniform->type == GL_FLOAT, "");
_value.floatValue = value;
_useCallback = false;
}
void UniformValue::setTexture(GLuint textureId, GLuint textureUnit)
{
CCASSERT(_uniform->type == GL_SAMPLER_2D, "Wrong type. expecting GL_SAMPLER_2D");
_value.tex.textureId = textureId;
_value.tex.textureUnit = textureUnit;
_useCallback = false;
}
void UniformValue::setInt(int value)
{
CCASSERT(_uniform->type == GL_INT, "Wrong type: expecting GL_INT");
_value.intValue = value;
_useCallback = false;
}
void UniformValue::setVec2(const Vector2& value)
{
CCASSERT (_uniform->type == GL_FLOAT_VEC2, "");
memcpy(_value.v2Value, &value, sizeof(_value.v2Value));
_useCallback = false;
}
void UniformValue::setVec3(const Vector3& value)
{
CCASSERT (_uniform->type == GL_FLOAT_VEC3, "");
memcpy(_value.v3Value, &value, sizeof(_value.v3Value));
_useCallback = false;
}
void UniformValue::setVec4(const Vector4& value)
{
CCASSERT (_uniform->type == GL_FLOAT_VEC4, "");
memcpy(_value.v4Value, &value, sizeof(_value.v4Value));
_useCallback = false;
}
void UniformValue::setMat4(const Matrix& value)
{
CCASSERT(_uniform->type == GL_FLOAT_MAT4, "");
memcpy(_value.matrixValue, &value, sizeof(_value.matrixValue));
_useCallback = false;
}
//
//
// VertexAttribValue
//
//
VertexAttribValue::VertexAttribValue()
: _useCallback(false)
, _vertexAttrib(nullptr)
, _enabled(false)
{
}
VertexAttribValue::VertexAttribValue(VertexAttrib *vertexAttrib)
: _useCallback(false)
, _vertexAttrib(vertexAttrib)
, _enabled(false)
{
}
VertexAttribValue::~VertexAttribValue()
{
if (_useCallback)
delete _value.callback;
}
void VertexAttribValue::apply()
{
if(_enabled) {
if(_useCallback) {
(*_value.callback)(_vertexAttrib);
}
else
{
glVertexAttribPointer(_vertexAttrib->index,
_value.pointer.size,
_value.pointer.type,
_value.pointer.normalized,
_value.pointer.stride,
_value.pointer.pointer);
}
}
}
void VertexAttribValue::setCallback(const std::function<void(VertexAttrib*)> &callback)
{
_value.callback = new std::function<void(VertexAttrib*)>();
*_value.callback = callback;
_useCallback = true;
_enabled = true;
}
void VertexAttribValue::setPointer(GLint size, GLenum type, GLboolean normalized, GLsizei stride, GLvoid *pointer)
{
_value.pointer.size = size;
_value.pointer.type = type;
_value.pointer.normalized = normalized;
_value.pointer.stride = stride;
_value.pointer.pointer = pointer;
_enabled = true;
}
//
//
// GLProgramState
//
//
GLProgramState* GLProgramState::create(GLProgram *glprogram)
{
GLProgramState* ret = nullptr;
ret = new (std::nothrow) GLProgramState;
if(!ret || !ret->init(glprogram))
CC_SAFE_RELEASE(ret);
return ret;
}
GLProgramState* GLProgramState::getOrCreateWithGLProgramName(const std::string &glProgramName )
{
GLProgram *glProgram = GLProgramCache::getInstance()->getGLProgram(glProgramName);
if( glProgram )
return getOrCreate(glProgram);
CCLOG("cocos2d: warning: GLProgram '%s' not found", glProgramName.c_str());
return nullptr;
}
GLProgramState* GLProgramState::getOrCreate(GLProgram *glprogram)
{
GLProgramState* ret = GLProgramStateCache::getInstance()->getGLProgramState(glprogram);
return ret;
}
GLProgramState::GLProgramState()
: _vertexAttribsFlags(0)
, _glprogram(nullptr)
, _textureUnitIndex(1)
{
}
GLProgramState::~GLProgramState()
{
CC_SAFE_RELEASE(_glprogram);
}
bool GLProgramState::init(GLProgram* glprogram)
{
CCASSERT(glprogram, "invalid shader");
_glprogram = glprogram;
_glprogram->retain();
for(auto &attrib : _glprogram->_attributesDictionary) {
VertexAttribValue value(&attrib.second);
_attributes[attrib.first] = value;
}
for(auto &uniform : _glprogram->_uniformsDictionary) {
UniformValue value(&uniform.second, _glprogram);
_uniforms[uniform.first] = value;
}
return true;
}
void GLProgramState::resetGLProgram()
{
CC_SAFE_RELEASE(_glprogram);
_uniforms.clear();
_attributes.clear();
// first texture is GL_TEXTURE1
_textureUnitIndex = 1;
}
void GLProgramState::apply(const Matrix& modelView)
{
CCASSERT(_glprogram, "invalid glprogram");
// set shader
_glprogram->use();
_glprogram->setUniformsForBuiltins(modelView);
// Don't set attributes if they weren't set
// Use Case: Auto-batching
if(_vertexAttribsFlags) {
// enable/disable vertex attribs
GL::enableVertexAttribs(_vertexAttribsFlags);
// set attributes
for(auto &attribute : _attributes) {
attribute.second.apply();
}
}
// set uniforms
for(auto& uniform : _uniforms) {
uniform.second.apply();
}
}
void GLProgramState::setGLProgram(GLProgram *glprogram)
{
CCASSERT(glprogram, "invalid GLProgram");
if( _glprogram != glprogram) {
resetGLProgram();
init(glprogram);
}
}
UniformValue* GLProgramState::getUniformValue(const std::string &name)
{
const auto itr = _uniforms.find(name);
if( itr != _uniforms.end())
return &itr->second;
return nullptr;
}
VertexAttribValue* GLProgramState::getVertexAttribValue(const std::string &name)
{
const auto itr = _attributes.find(name);
if( itr != _attributes.end())
return &itr->second;
return nullptr;
}
// VertexAttrib Setters
void GLProgramState::setVertexAttribCallback(const std::string &name, const std::function<void(VertexAttrib*)> &callback)
{
VertexAttribValue *v = getVertexAttribValue(name);
if(v) {
v->setCallback(callback);
_vertexAttribsFlags |= 1 << v->_vertexAttrib->index;
}
else
{
CCLOG("cocos2d: warning: Attribute not found: %s", name.c_str());
}
}
void GLProgramState::setVertexAttribPointer(const std::string &name, GLint size, GLenum type, GLboolean normalized, GLsizei stride, GLvoid *pointer)
{
auto v = getVertexAttribValue(name);
if(v) {
v->setPointer(size, type, normalized, stride, pointer);
_vertexAttribsFlags |= 1 << v->_vertexAttrib->index;
}
else
{
CCLOG("cocos2d: warning: Attribute not found: %s", name.c_str());
}
}
// Uniform Setters
void GLProgramState::setUniformCallback(const std::string &uniformName, const std::function<void(Uniform*)> &callback)
{
auto v = getUniformValue(uniformName);
if (v)
v->setCallback(callback);
else
CCLOG("cocos2d: warning: Uniform not found: %s", uniformName.c_str());
}
void GLProgramState::setUniformFloat(const std::string &uniformName, float value)
{
auto v = getUniformValue(uniformName);
if (v)
v->setFloat(value);
else
CCLOG("cocos2d: warning: Uniform not found: %s", uniformName.c_str());
}
void GLProgramState::setUniformInt(const std::string &uniformName, int value)
{
auto v = getUniformValue(uniformName);
if(v)
v->setInt(value);
else
CCLOG("cocos2d: warning: Uniform not found: %s", uniformName.c_str());
}
void GLProgramState::setUniformVec2(const std::string &uniformName, const Vector2& value)
{
auto v = getUniformValue(uniformName);
if (v)
v->setVec2(value);
else
CCLOG("cocos2d: warning: Uniform not found: %s", uniformName.c_str());
}
void GLProgramState::setUniformVec3(const std::string &uniformName, const Vector3& value)
{
auto v = getUniformValue(uniformName);
if (v)
v->setVec3(value);
else
CCLOG("cocos2d: warning: Uniform not found: %s", uniformName.c_str());
}
void GLProgramState::setUniformVec4(const std::string &uniformName, const Vector4& value)
{
auto v = getUniformValue(uniformName);
if (v)
v->setVec4(value);
else
CCLOG("cocos2d: warning: Uniform not found: %s", uniformName.c_str());
}
void GLProgramState::setUniformMat4(const std::string &uniformName, const Matrix& value)
{
auto v = getUniformValue(uniformName);
if (v)
v->setMat4(value);
else
CCLOG("cocos2d: warning: Uniform not found: %s", uniformName.c_str());
}
// Textures
void GLProgramState::setUniformTexture(const std::string &uniformName, Texture2D *texture)
{
CCASSERT(texture, "Invalid texture");
setUniformTexture(uniformName, texture->getName());
}
void GLProgramState::setUniformTexture(const std::string &uniformName, GLuint textureId)
{
auto v = getUniformValue(uniformName);
if (v)
v->setTexture(textureId, _textureUnitIndex++);
else
CCLOG("cocos2d: warning: Uniform not found: %s", uniformName.c_str());
}
NS_CC_END
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