axmol/cocos/renderer/CCQuadCommand.cpp

/****************************************************************************
 Copyright (c) 2013-2014 Chukong Technologies Inc.

 http://www.cocos2d-x.org

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#include "renderer/CCQuadCommand.h"
#include "renderer/ccGLStateCache.h"
#include "renderer/CCGLProgram.h"
#include "renderer/CCGLProgramState.h"
#include "xxhash.h"

NS_CC_BEGIN


QuadCommand::QuadCommand()
:_materialID(0)
,_textureID(0)
,_glProgramState(nullptr)
,_blendType(BlendFunc::DISABLE)
,_quads(nullptr)
,_quadsCount(0)
{
    _type = RenderCommand::Type::QUAD_COMMAND;
}

void QuadCommand::init(float globalOrder, GLuint textureID, GLProgramState* glProgramState, BlendFunc blendType, V3F_C4B_T2F_Quad* quad, ssize_t quadCount, const Matrix &mv)
{
    CCASSERT(glProgramState, "Invalid GLProgramState");
    CCASSERT(glProgramState->getVertexAttribsFlags() == 0, "No custom attributes are supported in QuadCommand");

    _globalOrder = globalOrder;

    _quadsCount = quadCount;
    _quads = quad;

    _mv = mv;

    if( _textureID != textureID || _blendType.src != blendType.src || _blendType.dst != blendType.dst || _glProgramState != glProgramState) {

        _textureID = textureID;
        _blendType = blendType;
        _glProgramState = glProgramState;

        generateMaterialID();
    }
}

QuadCommand::~QuadCommand()
{
}

void QuadCommand::generateMaterialID()
{

    if(_glProgramState->getUniformCount() > 0)
    {
        _materialID = QuadCommand::MATERIAL_ID_DO_NOT_BATCH;
    }
    else
    {
        int glProgram = (int)_glProgramState->getGLProgram()->getProgram();
        int intArray[4] = { glProgram, (int)_textureID, (int)_blendType.src, (int)_blendType.dst};

        _materialID = XXH32((const void*)intArray, sizeof(intArray), 0);
    }
}

void QuadCommand::useMaterial() const
{
    //Set texture
    GL::bindTexture2D(_textureID);

    //set blend mode
    GL::blendFunc(_blendType.src, _blendType.dst);

    _glProgramState->apply(_mv);
}

NS_CC_END