mirror of https://github.com/axmolengine/axmol.git
137 lines
4.0 KiB
C++
137 lines
4.0 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2013 cocos2d-x.org
|
|
|
|
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 NO 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 "CCShaderNode.h"
|
|
|
|
namespace cocos2d { namespace extension { namespace armature {
|
|
|
|
enum
|
|
{
|
|
SIZE_X = 128,
|
|
SIZE_Y = 128,
|
|
};
|
|
|
|
ShaderNode::ShaderNode()
|
|
: _center(Vertex2F(0.0f, 0.0f))
|
|
, _resolution(Vertex2F(0.0f, 0.0f))
|
|
, _time(0.0f)
|
|
, _uniformCenter(0)
|
|
, _uniformResolution(0)
|
|
, _uniformTime(0)
|
|
{
|
|
}
|
|
|
|
ShaderNode *ShaderNode::shaderNodeWithVertex(const char *vert, const char *frag)
|
|
{
|
|
ShaderNode *node = new ShaderNode();
|
|
node->initWithVertex(vert, frag);
|
|
node->autorelease();
|
|
|
|
return node;
|
|
}
|
|
|
|
bool ShaderNode::initWithVertex(const char *vert, const char *frag)
|
|
{
|
|
|
|
loadShaderVertex(vert, frag);
|
|
|
|
_time = 0;
|
|
_resolution = Vertex2F(SIZE_X, SIZE_Y);
|
|
|
|
scheduleUpdate();
|
|
|
|
setContentSize(Size(SIZE_X, SIZE_Y));
|
|
setAnchorPoint(Point(0.5f, 0.5f));
|
|
|
|
return true;
|
|
}
|
|
|
|
void ShaderNode::loadShaderVertex(const char *vert, const char *frag)
|
|
{
|
|
GLProgram *shader = new GLProgram();
|
|
shader->initWithVertexShaderFilename(vert, frag);
|
|
|
|
shader->addAttribute("aVertex", kVertexAttrib_Position);
|
|
shader->link();
|
|
|
|
shader->updateUniforms();
|
|
|
|
_uniformCenter = glGetUniformLocation(shader->getProgram(), "center");
|
|
_uniformResolution = glGetUniformLocation(shader->getProgram(), "resolution");
|
|
_uniformTime = glGetUniformLocation(shader->getProgram(), "time");
|
|
|
|
this->setShaderProgram(shader);
|
|
|
|
shader->release();
|
|
}
|
|
|
|
void ShaderNode::update(float dt)
|
|
{
|
|
_time += dt;
|
|
}
|
|
|
|
void ShaderNode::translateFormOtherNode(AffineTransform &transform)
|
|
{
|
|
Node::setAdditionalTransform(transform);
|
|
|
|
_center = Vertex2F(_additionalTransform.tx * CC_CONTENT_SCALE_FACTOR(), _additionalTransform.ty * CC_CONTENT_SCALE_FACTOR());
|
|
_resolution = Vertex2F( SIZE_X * _additionalTransform.a, SIZE_Y * _additionalTransform.d);
|
|
}
|
|
|
|
void ShaderNode::setPosition(const Point &newPosition)
|
|
{
|
|
Node::setPosition(newPosition);
|
|
Point position = getPosition();
|
|
_center = Vertex2F(position.x * CC_CONTENT_SCALE_FACTOR(), position.y * CC_CONTENT_SCALE_FACTOR());
|
|
}
|
|
|
|
void ShaderNode::draw()
|
|
{
|
|
CC_NODE_DRAW_SETUP();
|
|
|
|
float w = SIZE_X, h = SIZE_Y;
|
|
GLfloat vertices[12] = {0, 0, w, 0, w, h, 0, 0, 0, h, w, h};
|
|
|
|
//
|
|
// Uniforms
|
|
//
|
|
getShaderProgram()->setUniformLocationWith2f(_uniformCenter, _center.x, _center.y);
|
|
getShaderProgram()->setUniformLocationWith2f(_uniformResolution, _resolution.x, _resolution.y);
|
|
|
|
|
|
// time changes all the time, so it is Ok to call OpenGL directly, and not the "cached" version
|
|
glUniform1f(_uniformTime, _time);
|
|
|
|
ccGLEnableVertexAttribs( kVertexAttribFlag_Position );
|
|
|
|
glVertexAttribPointer(kVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
|
|
|
|
glDrawArrays(GL_TRIANGLES, 0, 6);
|
|
|
|
CC_INCREMENT_GL_DRAWS(1);
|
|
}
|
|
|
|
|
|
}}} // namespace cocos2d { namespace extension { namespace armature {
|