C++ CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES函数代码示例

void MeshCommand::batchDraw()
{
    if (_material)
    {
        for(const auto& pass: _material->_currentTechnique->_passes)
        {
            pass->bind(_m);

            glDrawElements(_primitive, (GLsizei)_indexCount, _indexFormat, 0);
            CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, _indexCount);

            pass->unbind();
        }
    }
    else
    {
        _glProgramState->applyGLProgram(_m);

        // set render state
        applyRenderState();

        // Draw
        glDrawElements(_primitive, (GLsizei)_indexCount, _indexFormat, 0);
        CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, _indexCount);
    }
}

void BoneNode::onDraw(const cocos2d::Mat4 &transform, uint32_t flags)
{
    getGLProgram()->use();
    getGLProgram()->setUniformsForBuiltins(transform);

    cocos2d::GL::enableVertexAttribs(cocos2d::GL::VERTEX_ATTRIB_FLAG_POSITION | cocos2d::GL::VERTEX_ATTRIB_FLAG_COLOR);

    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glVertexAttribPointer(cocos2d::GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, 0, _noMVPVertices);
    glVertexAttribPointer(cocos2d::GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_FLOAT, GL_FALSE, 0, _squareColors);

    cocos2d::GL::blendFunc(_blendFunc.src, _blendFunc.dst);

    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);

#ifdef CC_STUDIO_ENABLED_VIEW
    glVertexAttribPointer(cocos2d::GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, 0, _noMVPVertices);
    glVertexAttribPointer(cocos2d::GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_FLOAT, GL_FALSE, 0, _squareColors);

    glEnable(GL_LINE_SMOOTH);
    glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
    glDrawArrays(GL_LINE_LOOP, 0, 4);
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 8);
#else
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 4);
#endif //CC_STUDIO_ENABLED_VIEW

}

void MeshCommand::execute()
{
    // Draw without VAO
    glBindBuffer(GL_ARRAY_BUFFER, _vertexBuffer);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _indexBuffer);

    if (_material)
    {
        for(const auto& pass: _material->_currentTechnique->_passes)
        {
            pass->bind(_mv, true);

            glDrawElements(_primitive, (GLsizei)_indexCount, _indexFormat, 0);
            CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, _indexCount);

            pass->unbind();
        }
    }
    else
    {
        // set render state
        _glProgramState->apply(_mv);

        applyRenderState();

        // Draw
        glDrawElements(_primitive, (GLsizei)_indexCount, _indexFormat, 0);
        
        CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, _indexCount);
    }

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
}

void drawSolidCircle( const Vec2& center, float radius, float angle, unsigned int segments, float scaleX, float scaleY)
{
    lazy_init();
    
    const float coef = 2.0f * (float)M_PI/segments;
    
    GLfloat *vertices = (GLfloat*)calloc( sizeof(GLfloat)*2*(segments+2), 1);
    if( ! vertices )
        return;
    
    for(unsigned int i = 0;i <= segments; i++) {
        float rads = i*coef;
        GLfloat j = radius * cosf(rads + angle) * scaleX + center.x;
        GLfloat k = radius * sinf(rads + angle) * scaleY + center.y;
        
        vertices[i*2] = j;
        vertices[i*2+1] = k;
    }
    vertices[(segments+1)*2] = center.x;
    vertices[(segments+1)*2+1] = center.y;
    
    s_shader->use();
    s_shader->setUniformsForBuiltins();
    s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
    
    GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
    
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);

    glDrawArrays(GL_TRIANGLE_FAN, 0, (GLsizei) segments+1);
    
    ::free( vertices );
    
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,segments+1);
}

void NavMeshDebugDraw::drawImplement(const cocos2d::Mat4& transform, uint32_t flags)
{
    _program->use();
    _program->setUniformsForBuiltins(transform);

    glBindBuffer(GL_ARRAY_BUFFER, _vbo);
    GL::enableVertexAttribs(GL::VERTEX_ATTRIB_FLAG_POSITION | GL::VERTEX_ATTRIB_FLAG_COLOR);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, sizeof(V3F_C4F), (GLvoid *)offsetof(V3F_C4F, position));
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(V3F_C4F), (GLvoid *)offsetof(V3F_C4F, color));
    if (_dirtyBuffer){
        glBufferData(GL_ARRAY_BUFFER, sizeof(V3F_C4F)* _vertices.size(), &_vertices[0], GL_STATIC_DRAW);
        _dirtyBuffer = false;
    }
    for (auto &iter : _primitiveList){
        _stateBlock->setDepthWrite(iter->depthMask);
        if (iter->type == GL_POINTS){
            //glPointSize(iter->size);
        }
        else if (iter->type == GL_LINES){
            glLineWidth(iter->size);
        }
        _stateBlock->bind();
        glDrawArrays(iter->type, iter->start, iter->end - iter->start);
        CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, iter->end - iter->start);
    }
    glBindBuffer(GL_ARRAY_BUFFER, 0);
}

/**
 * Draw a primitive.
 *
 * @param transform Transform matrix
 * @param flags Flags to draw
 */
void ShaderTextureNode::onDraw(const Mat4 &transform, uint32_t flags)
{
	GLfloat vertices[48] = {
		-1, -1, 0, 1, 1, 1, 1, 1,		// Lower-Left
		1, -1, 1, 1, 1, 1, 1, 1,		// Lower-Right
		1, 1, 1, 0, 1, 1, 1, 1,			// Upper-Right
		-1, -1, 0, 1, 1, 1, 1, 1,		// Lower-Left
		1, 1, 1, 0, 1, 1, 1, 1,			// Upper-Right
		-1, 1, 0, 0, 1, 1, 1, 1,		// Upper-Left
	};


	auto glProgramState = getGLProgramState();
	glProgramState->setVertexAttribPointer("a_position", 2, GL_FLOAT, GL_FALSE, 32, vertices);
	glProgramState->setVertexAttribPointer("a_texCoord", 2, GL_FLOAT, GL_FALSE, 32, vertices + 2);
	glProgramState->setVertexAttribPointer("a_color", 4, GL_FLOAT, GL_FALSE, 32, vertices + 4);
	glProgramState->apply(transform);

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

	glDisable(GL_DEPTH_TEST);
	glCullFace(GL_BACK);
	glEnable(GL_CULL_FACE);

	//	Alpha blending
//	glEnable(GL_BLEND);
//	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	
	glDrawArrays(GL_TRIANGLES, 0, 6);

//	glDisable(GL_BLEND);

	CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 6);
}

void MGRDrawNode::onDrawGLPoint(const Mat4 &transform, uint32_t flags)
{
    auto glProgram = GLProgramCache::getInstance()->getGLProgram(GLProgram::SHADER_NAME_POSITION_COLOR_TEXASPOINTSIZE);
    glProgram->use();
    glProgram->setUniformsForBuiltins(transform);

    GL::blendFunc(_blendFunc.src, _blendFunc.dst);

    if (_dirtyGLPoint)
    {
        glBindBuffer(GL_ARRAY_BUFFER, _vboGLPoint);
        glBufferData(GL_ARRAY_BUFFER, sizeof(V2F_C4B_T2F)*_bufferCapacityGLPoint, _bufferGLPoint, GL_STREAM_DRAW);

        _dirtyGLPoint = false;
    }

    glBindBuffer(GL_ARRAY_BUFFER, _vboGLPoint);
    GL::enableVertexAttribs(GL::VERTEX_ATTRIB_FLAG_POS_COLOR_TEX);
    // vertex
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, sizeof(V2F_C4B_T2F), (GLvoid*)offsetof(V2F_C4B_T2F, vertices));
    // color
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(V2F_C4B_T2F), (GLvoid*)offsetof(V2F_C4B_T2F, colors));
    // texcoord
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_TEX_COORD, 2, GL_FLOAT, GL_FALSE, sizeof(V2F_C4B_T2F), (GLvoid*)offsetof(V2F_C4B_T2F, texCoords));

    glDrawArrays(GL_POINTS, 0, _bufferCountGLPoint);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, _bufferCountGLPoint);
    CHECK_GL_ERROR_DEBUG();
}

void MotionStreak::onDraw(const kmMat4 &transform, bool transformUpdated)
{
    getShaderProgram()->use();
    getShaderProgram()->setUniformsForBuiltins(transform);

    GL::enableVertexAttribs(GL::VERTEX_ATTRIB_FLAG_POS_COLOR_TEX );
    GL::blendFunc( _blendFunc.src, _blendFunc.dst );

    GL::bindTexture2D( _texture->getName() );

#ifdef EMSCRIPTEN
    // Size calculations from ::initWithFade
    setGLBufferData(_vertices, (sizeof(Vertex2F) * _maxPoints * 2), 0);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);

    setGLBufferData(_texCoords, (sizeof(Tex2F) * _maxPoints * 2), 1);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_TEX_COORDS, 2, GL_FLOAT, GL_FALSE, 0, 0);

    setGLBufferData(_colorPointer, (sizeof(GLubyte) * _maxPoints * 2 * 4), 2);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0);
#else
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, _vertices);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_TEX_COORDS, 2, GL_FLOAT, GL_FALSE, 0, _texCoords);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, _colorPointer);
#endif // EMSCRIPTEN

    glDrawArrays(GL_TRIANGLE_STRIP, 0, (GLsizei)_nuPoints*2);
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, _nuPoints*2);
}

void DrawTextureScene::onDraw(){
    Director::getInstance()->pushMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
    Director::getInstance()->loadIdentityMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
    Director::getInstance()->pushMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
    Director::getInstance()->loadIdentityMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
    
    auto glProgram=getGLProgram();
    glProgram->use();
    //更新CC_MVPMatrix
    glProgram->setUniformsForBuiltins();
    
    
    GLuint textureLocation = glGetUniformLocation(glProgram->getProgram(), "CC_Texture0");
    // Set our sampler to user Texture Unit 0
    glUniform1i(textureLocation, 0);

//    GLuint uColorLocation = glGetUniformLocation(glProgram->getProgram(), "u_color");
//    GLfloat uColor[]={1.0,1.0,1.0,1.0};
//    glUniform4fv(uColorLocation, 1, uColor);
    
    glBindVertexArray(vao);
    
    //在调用draw call之前，我们需要绑定纹理
    
    GL::bindTexture2D(textureID);//activeTexture(GL_TEXTURE0); //glBindTexture(GL_TEXTURE_2D, textureID);
    
    glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, (GLvoid*)0);
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 6);
    CHECK_GL_ERROR_DEBUG();
    
    
    Director::getInstance()->popMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
    Director::getInstance()->popMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
    
}

void RawStencilBufferTest::onBeforeDrawSprite(int planeIndex, const Vec2& pt)
{
    this->setupStencilForDrawingOnPlane(planeIndex);
    CHECK_GL_ERROR_DEBUG();

    Vec2 vertices[] = {
        Vec2::ZERO,
        Vec2(pt.x, 0),
        pt,
        Vec2(0, pt.y)
    };

    auto glProgram = GLProgramCache::getInstance()->getGLProgram(GLProgram::SHADER_NAME_POSITION_U_COLOR);

    int colorLocation = glProgram->getUniformLocation("u_color");
    CHECK_GL_ERROR_DEBUG();

    Color4F color = _planeColor[planeIndex];
    glProgram->use();
    glProgram->setUniformsForBuiltins();
    glProgram->setUniformLocationWith4fv(colorLocation, (GLfloat*) &color.r, 1);

    GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );

    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);

    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 4);
}

void ShaderSprite::onDraw(const kmMat4 &transform, bool transformUpdated)
{
    auto shader = getShaderProgram();
    shader->use();
    shader->setUniformsForBuiltins(transform);

    setCustomUniforms();
    
    GL::enableVertexAttribs(cocos2d::GL::VERTEX_ATTRIB_FLAG_POS_COLOR_TEX );
    GL::blendFunc(_blendFunc.src, _blendFunc.dst);
    GL::bindTexture2D( getTexture()->getName());
    
    //
    // Attributes
    //
    #define kQuadSize sizeof(_quad.bl)
    size_t offset = (size_t)&_quad;
    
    // vertex
    int diff = offsetof( V3F_C4B_T2F, vertices);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, kQuadSize, (void*) (offset + diff));
    
    // texCoods
    diff = offsetof( V3F_C4B_T2F, texCoords);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_TEX_COORDS, 2, GL_FLOAT, GL_FALSE, kQuadSize, (void*)(offset + diff));
    
    // color
    diff = offsetof( V3F_C4B_T2F, colors);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_UNSIGNED_BYTE, GL_TRUE, kQuadSize, (void*)(offset + diff));
    
    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 4);
}

void LayerColor::onDraw(const kmMat4& transform, bool transformUpdated)
{
    getShaderProgram()->use();
    getShaderProgram()->setUniformsForBuiltins(transform);

    GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION | GL::VERTEX_ATTRIB_FLAG_COLOR );
    //
    // Attributes
    //
#ifdef EMSCRIPTEN
    setGLBufferData(_noMVPVertices, 4 * sizeof(Vertex3F), 0);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, 0, 0);

    setGLBufferData(_squareColors, 4 * sizeof(Color4F), 1);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_FLOAT, GL_FALSE, 0, 0);
#else
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, 0, _noMVPVertices);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_FLOAT, GL_FALSE, 0, _squareColors);
#endif // EMSCRIPTEN

    GL::blendFunc( _blendFunc.src, _blendFunc.dst );

    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);

    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,4);
}

void drawCubicBezier(const Vec2& origin, const Vec2& control1, const Vec2& control2, const Vec2& destination, unsigned int segments)
{
    lazy_init();

    Vec2* vertices = new (std::nothrow) Vec2[segments + 1];

    float t = 0;
    for (unsigned int i = 0; i < segments; i++)
    {
        vertices[i].x = powf(1 - t, 3) * origin.x + 3.0f * powf(1 - t, 2) * t * control1.x + 3.0f * (1 - t) * t * t * control2.x + t * t * t * destination.x;
        vertices[i].y = powf(1 - t, 3) * origin.y + 3.0f * powf(1 - t, 2) * t * control1.y + 3.0f * (1 - t) * t * t * control2.y + t * t * t * destination.y;
        t += 1.0f / segments;
    }
    vertices[segments].x = destination.x;
    vertices[segments].y = destination.y;

    s_shader->use();
    s_shader->setUniformsForBuiltins();
    s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);

    GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );

#ifdef EMSCRIPTEN
    setGLBufferData(vertices, (segments + 1) * sizeof(Vec2));
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
#endif // EMSCRIPTEN
    glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) segments + 1);
    CC_SAFE_DELETE_ARRAY(vertices);

    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,segments+1);
}

void GLESDebugDraw::DrawSolidPolygon(const b2Vec2* old_vertices, int vertexCount, const b2Color& color)
{
    mShaderProgram->use();
    mShaderProgram->setUniformsForBuiltins();

    b2Vec2* vertices = new b2Vec2[vertexCount];
    for( int i=0;i<vertexCount;i++) {
        vertices[i] = old_vertices[i];
        vertices[i] *= mRatio;
    }

    mShaderProgram->setUniformLocationWith4f(mColorLocation, color.r*0.5f, color.g*0.5f, color.b*0.5f, 0.5f);

    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);

    glDrawArrays(GL_TRIANGLE_FAN, 0, vertexCount);

    mShaderProgram->setUniformLocationWith4f(mColorLocation, color.r, color.g, color.b, 1);
    glDrawArrays(GL_LINE_LOOP, 0, vertexCount);

    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(2,vertexCount*2);

    CHECK_GL_ERROR_DEBUG();

    delete[] vertices;
}

void GLESDebugDraw::DrawCircle(const b2Vec2& center, float32 radius, const b2Color& color)
{
    mShaderProgram->use();
    mShaderProgram->setUniformsForBuiltins();

    const float32 k_segments = 16.0f;
    int vertexCount=16;
    const float32 k_increment = 2.0f * b2_pi / k_segments;
    float32 theta = 0.0f;

    GLfloat*    glVertices = new GLfloat[vertexCount*2];
    for (int i = 0; i < k_segments; ++i)
    {
        b2Vec2 v = center + radius * b2Vec2(cosf(theta), sinf(theta));
        glVertices[i*2]=v.x * mRatio;
        glVertices[i*2+1]=v.y * mRatio;
        theta += k_increment;
    }

    mShaderProgram->setUniformLocationWith4f(mColorLocation, color.r, color.g, color.b, 1);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, glVertices);

    glDrawArrays(GL_LINE_LOOP, 0, vertexCount);

    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,vertexCount);

    CHECK_GL_ERROR_DEBUG();

    delete[] glVertices;
}