mirror of https://github.com/axmolengine/axmol.git
798 lines
27 KiB
C++
798 lines
27 KiB
C++
/* Copyright (c) 2012 Scott Lembcke and Howling Moon Software
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* Copyright (c) 2012 cocos2d-x.org
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* Copyright (c) 2013-2016 Chukong Technologies Inc.
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* Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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* Copyright (c) 2021 Bytedance Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "2d/CCDrawNode.h"
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#include <stddef.h> // offsetof
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#include "base/ccTypes.h"
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#include "base/CCEventType.h"
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#include "base/CCConfiguration.h"
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#include "renderer/CCRenderer.h"
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#include "base/CCDirector.h"
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#include "base/CCEventListenerCustom.h"
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#include "base/CCEventDispatcher.h"
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#include "2d/CCActionCatmullRom.h"
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#include "base/ccUtils.h"
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#include "renderer/ccShaders.h"
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#include "renderer/backend/ProgramState.h"
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NS_AX_BEGIN
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static inline Tex2F v2ToTex2F(const Vec2& v)
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{
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return {v.x, v.y};
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}
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// implementation of DrawNode
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DrawNode::DrawNode(float lineWidth) : _lineWidth(lineWidth), _defaultLineWidth(lineWidth)
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{
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_blendFunc = BlendFunc::ALPHA_PREMULTIPLIED;
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#if AX_ENABLE_CACHE_TEXTURE_DATA
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// TODO new-renderer: interface setupBuffer removal
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// Need to listen the event only when not use batchnode, because it will use VBO
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// auto listener = EventListenerCustom::create(EVENT_RENDERER_RECREATED, [this](EventCustom* event){
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// /** listen the event that renderer was recreated on Android/WP8 */
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// this->setupBuffer();
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// });
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// _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
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#endif
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}
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DrawNode::~DrawNode()
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{
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AX_SAFE_FREE(_bufferTriangle);
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AX_SAFE_FREE(_bufferPoint);
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AX_SAFE_FREE(_bufferLine);
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freeShaderInternal(_customCommandTriangle);
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freeShaderInternal(_customCommandPoint);
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freeShaderInternal(_customCommandLine);
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}
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DrawNode* DrawNode::create(float defaultLineWidth)
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{
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DrawNode* ret = new DrawNode(defaultLineWidth);
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if (ret->init())
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{
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ret->autorelease();
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}
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else
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{
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AX_SAFE_DELETE(ret);
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}
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return ret;
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}
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void DrawNode::ensureCapacity(int count)
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{
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AXASSERT(count >= 0, "capacity must be >= 0");
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if (_bufferCountTriangle + count > _bufferCapacityTriangle)
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{
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_bufferCapacityTriangle += MAX(_bufferCapacityTriangle, count);
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_bufferTriangle = (V2F_C4B_T2F*)realloc(_bufferTriangle, _bufferCapacityTriangle * sizeof(V2F_C4B_T2F));
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_customCommandTriangle.createVertexBuffer(sizeof(V2F_C4B_T2F), _bufferCapacityTriangle,
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CustomCommand::BufferUsage::STATIC);
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_customCommandTriangle.updateVertexBuffer(_bufferTriangle, _bufferCapacityTriangle * sizeof(V2F_C4B_T2F));
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}
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}
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void DrawNode::ensureCapacityGLPoint(int count)
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{
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AXASSERT(count >= 0, "capacity must be >= 0");
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if (_bufferCountPoint + count > _bufferCapacityPoint)
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{
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_bufferCapacityPoint += MAX(_bufferCapacityPoint, count);
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_bufferPoint = (V2F_C4B_T2F*)realloc(_bufferPoint, _bufferCapacityPoint * sizeof(V2F_C4B_T2F));
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_customCommandPoint.createVertexBuffer(sizeof(V2F_C4B_T2F), _bufferCapacityPoint,
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CustomCommand::BufferUsage::STATIC);
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_customCommandPoint.updateVertexBuffer(_bufferPoint, _bufferCapacityPoint * sizeof(V2F_C4B_T2F));
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}
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}
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void DrawNode::ensureCapacityGLLine(int count)
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{
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AXASSERT(count >= 0, "capacity must be >= 0");
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if (_bufferCountLine + count > _bufferCapacityLine)
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{
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_bufferCapacityLine += MAX(_bufferCapacityLine, count);
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_bufferLine = (V2F_C4B_T2F*)realloc(_bufferLine, _bufferCapacityLine * sizeof(V2F_C4B_T2F));
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_customCommandLine.createVertexBuffer(sizeof(V2F_C4B_T2F), _bufferCapacityLine,
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CustomCommand::BufferUsage::STATIC);
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_customCommandLine.updateVertexBuffer(_bufferLine, _bufferCapacityLine * sizeof(V2F_C4B_T2F));
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}
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}
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bool DrawNode::init()
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{
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_blendFunc = BlendFunc::ALPHA_PREMULTIPLIED;
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updateShader();
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ensureCapacity(512);
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ensureCapacityGLPoint(64);
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ensureCapacityGLLine(256);
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_dirtyTriangle = true;
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_dirtyLine = true;
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_dirtyPoint = true;
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return true;
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}
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void DrawNode::updateShader()
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{
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updateShaderInternal(_customCommandTriangle, backend::ProgramType::POSITION_COLOR_LENGTH_TEXTURE,
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CustomCommand::DrawType::ARRAY, CustomCommand::PrimitiveType::TRIANGLE);
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updateShaderInternal(_customCommandPoint, backend::ProgramType::POSITION_COLOR_TEXTURE_AS_POINTSIZE,
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CustomCommand::DrawType::ARRAY, CustomCommand::PrimitiveType::POINT);
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updateShaderInternal(_customCommandLine, backend::ProgramType::POSITION_COLOR_LENGTH_TEXTURE,
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CustomCommand::DrawType::ARRAY, CustomCommand::PrimitiveType::LINE);
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}
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void DrawNode::updateShaderInternal(CustomCommand& cmd,
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uint32_t programType,
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CustomCommand::DrawType drawType,
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CustomCommand::PrimitiveType primitiveType)
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{
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auto& pipelinePS = cmd.getPipelineDescriptor().programState;
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AX_SAFE_RELEASE(pipelinePS);
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auto program = backend::Program::getBuiltinProgram(programType);
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pipelinePS = new backend::ProgramState(program);
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cmd.setPrimitiveType(primitiveType);
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cmd.setDrawType(drawType);
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}
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void DrawNode::freeShaderInternal(CustomCommand& cmd)
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{
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auto& pipelinePS = cmd.getPipelineDescriptor().programState;
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AX_SAFE_RELEASE_NULL(pipelinePS);
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}
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void DrawNode::updateBlendState(CustomCommand& cmd)
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{
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backend::BlendDescriptor& blendDescriptor = cmd.getPipelineDescriptor().blendDescriptor;
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blendDescriptor.blendEnabled = true;
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if (_blendFunc == BlendFunc::ALPHA_NON_PREMULTIPLIED)
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{
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blendDescriptor.sourceRGBBlendFactor = backend::BlendFactor::SRC_ALPHA;
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blendDescriptor.destinationRGBBlendFactor = backend::BlendFactor::ONE_MINUS_SRC_ALPHA;
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blendDescriptor.sourceAlphaBlendFactor = backend::BlendFactor::SRC_ALPHA;
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blendDescriptor.destinationAlphaBlendFactor = backend::BlendFactor::ONE_MINUS_SRC_ALPHA;
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setOpacityModifyRGB(false);
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}
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else
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{
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blendDescriptor.sourceRGBBlendFactor = backend::BlendFactor::ONE;
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blendDescriptor.destinationRGBBlendFactor = backend::BlendFactor::ONE_MINUS_SRC_ALPHA;
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blendDescriptor.sourceAlphaBlendFactor = backend::BlendFactor::ONE;
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blendDescriptor.destinationAlphaBlendFactor = backend::BlendFactor::ONE_MINUS_SRC_ALPHA;
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setOpacityModifyRGB(true);
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}
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}
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void DrawNode::updateUniforms(const Mat4& transform, CustomCommand& cmd)
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{
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auto& pipelineDescriptor = cmd.getPipelineDescriptor();
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const auto& matrixP = _director->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
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Mat4 matrixMVP = matrixP * transform;
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auto mvpLocation = pipelineDescriptor.programState->getUniformLocation("u_MVPMatrix");
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pipelineDescriptor.programState->setUniform(mvpLocation, matrixMVP.m, sizeof(matrixMVP.m));
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float alpha = _displayedOpacity / 255.0f;
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auto alphaUniformLocation = pipelineDescriptor.programState->getUniformLocation("u_alpha");
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pipelineDescriptor.programState->setUniform(alphaUniformLocation, &alpha, sizeof(alpha));
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}
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void DrawNode::draw(Renderer* renderer, const Mat4& transform, uint32_t flags)
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{
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if (_bufferCountTriangle)
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{
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updateBlendState(_customCommandTriangle);
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updateUniforms(transform, _customCommandTriangle);
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_customCommandTriangle.init(_globalZOrder);
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renderer->addCommand(&_customCommandTriangle);
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}
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if (_bufferCountPoint)
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{
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updateBlendState(_customCommandPoint);
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updateUniforms(transform, _customCommandPoint);
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_customCommandPoint.init(_globalZOrder);
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renderer->addCommand(&_customCommandPoint);
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}
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if (_bufferCountLine)
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{
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updateBlendState(_customCommandLine);
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updateUniforms(transform, _customCommandLine);
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_customCommandLine.setLineWidth(_lineWidth);
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_customCommandLine.init(_globalZOrder);
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renderer->addCommand(&_customCommandLine);
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}
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}
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void DrawNode::drawPoint(const Vec2& position, const float pointSize, const Color4B& color)
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{
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ensureCapacityGLPoint(1);
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V2F_C4B_T2F* point = _bufferPoint + _bufferCountPoint;
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*point = {position, color, Tex2F(pointSize, 0)};
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_customCommandPoint.updateVertexBuffer(point, _bufferCountPoint * sizeof(V2F_C4B_T2F), sizeof(V2F_C4B_T2F));
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_bufferCountPoint += 1;
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_dirtyPoint = true;
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_customCommandPoint.setVertexDrawInfo(0, _bufferCountPoint);
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}
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void DrawNode::drawPoints(const Vec2* position, unsigned int numberOfPoints, const Color4B& color)
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{
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drawPoints(position, numberOfPoints, 1.0, color);
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}
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void DrawNode::drawPoints(const Vec2* position,
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unsigned int numberOfPoints,
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const float pointSize,
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const Color4B& color)
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{
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ensureCapacityGLPoint(numberOfPoints);
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V2F_C4B_T2F* point = _bufferPoint + _bufferCountPoint;
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for (unsigned int i = 0; i < numberOfPoints; i++)
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{
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*(point + i) = {position[i], color, Tex2F(pointSize, 0)};
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}
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_customCommandPoint.updateVertexBuffer(point, _bufferCountPoint * sizeof(V2F_C4B_T2F),
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numberOfPoints * sizeof(V2F_C4B_T2F));
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_bufferCountPoint += numberOfPoints;
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_dirtyPoint = true;
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_customCommandPoint.setVertexDrawInfo(0, _bufferCountPoint);
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}
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void DrawNode::drawLine(const Vec2& origin, const Vec2& destination, const Color4B& color)
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{
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ensureCapacityGLLine(2);
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V2F_C4B_T2F* point = _bufferLine + _bufferCountLine;
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*point = {origin, color, Tex2F(0.0, 0.0)};
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*(point + 1) = {destination, color, Tex2F(0.0, 0.0)};
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_customCommandLine.updateVertexBuffer(point, _bufferCountLine * sizeof(V2F_C4B_T2F), 2 * sizeof(V2F_C4B_T2F));
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_bufferCountLine += 2;
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_dirtyLine = true;
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_customCommandLine.setVertexDrawInfo(0, _bufferCountLine);
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}
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void DrawNode::drawRect(const Vec2& origin, const Vec2& destination, const Color4B& color)
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{
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drawLine(origin, Vec2(destination.x, origin.y), color);
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drawLine(Vec2(destination.x, origin.y), destination, color);
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drawLine(destination, Vec2(origin.x, destination.y), color);
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drawLine(Vec2(origin.x, destination.y), origin, color);
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}
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void DrawNode::drawPoly(const Vec2* poli, unsigned int numberOfPoints, bool closePolygon, const Color4B& color)
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{
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unsigned int vertex_count;
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if (closePolygon)
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{
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vertex_count = 2 * numberOfPoints;
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ensureCapacityGLLine(vertex_count);
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}
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else
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{
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vertex_count = 2 * (numberOfPoints - 1);
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ensureCapacityGLLine(vertex_count);
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}
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V2F_C4B_T2F* point = _bufferLine + _bufferCountLine;
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V2F_C4B_T2F* cursor = point;
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unsigned int i = 0;
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for (; i < numberOfPoints - 1; i++)
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{
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*point = {poli[i], color, Tex2F(0.0, 0.0)};
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*(point + 1) = {poli[i + 1], color, Tex2F(0.0, 0.0)};
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point += 2;
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}
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if (closePolygon)
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{
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*point = {poli[i], color, Tex2F(0.0, 0.0)};
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*(point + 1) = {poli[0], color, Tex2F(0.0, 0.0)};
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}
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_customCommandLine.updateVertexBuffer(cursor, _bufferCountLine * sizeof(V2F_C4B_T2F),
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vertex_count * sizeof(V2F_C4B_T2F));
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_bufferCountLine += vertex_count;
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_customCommandLine.setVertexDrawInfo(0, _bufferCountLine);
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}
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void DrawNode::drawCircle(const Vec2& center,
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float radius,
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float angle,
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unsigned int segments,
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bool drawLineToCenter,
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float scaleX,
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float scaleY,
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const Color4B& color)
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{
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const float coef = 2.0f * (float)M_PI / segments;
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auto vertices = _abuf.get<Vec2>(segments + 2);
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for (unsigned int i = 0; i <= segments; i++)
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{
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float rads = i * coef;
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vertices[i].x = radius * cosf(rads + angle) * scaleX + center.x;
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vertices[i].y = radius * sinf(rads + angle) * scaleY + center.y;
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}
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if (drawLineToCenter)
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{
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vertices[segments + 1] = center;
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drawPoly(vertices, segments + 2, true, color);
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}
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else
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drawPoly(vertices, segments + 1, true, color);
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}
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void DrawNode::drawCircle(const Vec2& center,
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float radius,
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float angle,
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unsigned int segments,
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bool drawLineToCenter,
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const Color4B& color)
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{
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drawCircle(center, radius, angle, segments, drawLineToCenter, 1.0f, 1.0f, color);
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}
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void DrawNode::drawQuadBezier(const Vec2& origin,
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const Vec2& control,
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const Vec2& destination,
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unsigned int segments,
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const Color4B& color)
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{
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Vec2* vertices = _abuf.get<Vec2>(segments + 1);
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float t = 0.0f;
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for (unsigned int i = 0; i < segments; i++)
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{
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vertices[i].x = powf(1 - t, 2) * origin.x + 2.0f * (1 - t) * t * control.x + t * t * destination.x;
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vertices[i].y = powf(1 - t, 2) * origin.y + 2.0f * (1 - t) * t * control.y + t * t * destination.y;
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t += 1.0f / segments;
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}
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vertices[segments].x = destination.x;
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vertices[segments].y = destination.y;
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drawPoly(vertices, segments + 1, false, color);
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}
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void DrawNode::drawCubicBezier(const Vec2& origin,
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const Vec2& control1,
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const Vec2& control2,
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const Vec2& destination,
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unsigned int segments,
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const Color4B& color)
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{
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Vec2* vertices = _abuf.get<Vec2>(segments + 1);
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float t = 0;
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for (unsigned int i = 0; i < segments; i++)
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{
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vertices[i].x = powf(1 - t, 3) * origin.x + 3.0f * powf(1 - t, 2) * t * control1.x +
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3.0f * (1 - t) * t * t * control2.x + t * t * t * destination.x;
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vertices[i].y = powf(1 - t, 3) * origin.y + 3.0f * powf(1 - t, 2) * t * control1.y +
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3.0f * (1 - t) * t * t * control2.y + t * t * t * destination.y;
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t += 1.0f / segments;
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}
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vertices[segments].x = destination.x;
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vertices[segments].y = destination.y;
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drawPoly(vertices, segments + 1, false, color);
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}
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void DrawNode::drawCardinalSpline(PointArray* config, float tension, unsigned int segments, const Color4B& color)
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{
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Vec2* vertices = _abuf.get<Vec2>(segments + 1);
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ssize_t p;
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float lt;
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float deltaT = 1.0f / config->count();
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for (unsigned int i = 0; i < segments + 1; i++)
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{
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float dt = (float)i / segments;
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// border
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if (dt == 1)
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{
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p = config->count() - 1;
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lt = 1;
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}
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else
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{
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p = static_cast<ssize_t>(dt / deltaT);
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lt = (dt - deltaT * (float)p) / deltaT;
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}
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// Interpolate
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Vec2 pp0 = config->getControlPointAtIndex(p - 1);
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Vec2 pp1 = config->getControlPointAtIndex(p + 0);
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Vec2 pp2 = config->getControlPointAtIndex(p + 1);
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Vec2 pp3 = config->getControlPointAtIndex(p + 2);
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Vec2 newPos = ccCardinalSplineAt(pp0, pp1, pp2, pp3, tension, lt);
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vertices[i].x = newPos.x;
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vertices[i].y = newPos.y;
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}
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drawPoly(vertices, segments + 1, false, color);
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}
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void DrawNode::drawCatmullRom(PointArray* points, unsigned int segments, const Color4B& color)
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{
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drawCardinalSpline(points, 0.5f, segments, color);
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}
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void DrawNode::drawDot(const Vec2& pos, float radius, const Color4B& color)
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{
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unsigned int vertex_count = 2 * 3;
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ensureCapacity(vertex_count);
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V2F_C4B_T2F a = {Vec2(pos.x - radius, pos.y - radius), color, Tex2F(-1.0, -1.0)};
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V2F_C4B_T2F b = {Vec2(pos.x - radius, pos.y + radius), color, Tex2F(-1.0, 1.0)};
|
|
V2F_C4B_T2F c = {Vec2(pos.x + radius, pos.y + radius), color, Tex2F(1.0, 1.0)};
|
|
V2F_C4B_T2F d = {Vec2(pos.x + radius, pos.y - radius), color, Tex2F(1.0, -1.0)};
|
|
|
|
V2F_C4B_T2F_Triangle* triangles = (V2F_C4B_T2F_Triangle*)(_bufferTriangle + _bufferCountTriangle);
|
|
V2F_C4B_T2F_Triangle triangle0 = {a, b, c};
|
|
V2F_C4B_T2F_Triangle triangle1 = {a, c, d};
|
|
triangles[0] = triangle0;
|
|
triangles[1] = triangle1;
|
|
|
|
_customCommandTriangle.updateVertexBuffer(triangles, _bufferCountTriangle * sizeof(V2F_C4B_T2F),
|
|
vertex_count * sizeof(V2F_C4B_T2F));
|
|
_bufferCountTriangle += vertex_count;
|
|
_dirtyTriangle = true;
|
|
_customCommandTriangle.setVertexDrawInfo(0, _bufferCountTriangle);
|
|
}
|
|
|
|
void DrawNode::drawRect(const Vec2& p1, const Vec2& p2, const Vec2& p3, const Vec2& p4, const Color4B& color)
|
|
{
|
|
drawLine(p1, p2, color);
|
|
drawLine(p2, p3, color);
|
|
drawLine(p3, p4, color);
|
|
drawLine(p4, p1, color);
|
|
}
|
|
|
|
void DrawNode::drawSegment(const Vec2& from, const Vec2& to, float radius, const Color4B& color)
|
|
{
|
|
unsigned int vertex_count = 6 * 3;
|
|
ensureCapacity(vertex_count);
|
|
|
|
Vec2 a = from;
|
|
Vec2 b = to;
|
|
|
|
Vec2 n = ((b - a).getPerp()).getNormalized();
|
|
Vec2 t = n.getPerp();
|
|
|
|
Vec2 nw = n * radius;
|
|
Vec2 tw = t * radius;
|
|
Vec2 v0 = b - (nw + tw);
|
|
Vec2 v1 = b + (nw - tw);
|
|
Vec2 v2 = b - nw;
|
|
Vec2 v3 = b + nw;
|
|
Vec2 v4 = a - nw;
|
|
Vec2 v5 = a + nw;
|
|
Vec2 v6 = a - (nw - tw);
|
|
Vec2 v7 = a + (nw + tw);
|
|
|
|
V2F_C4B_T2F_Triangle* triangles = (V2F_C4B_T2F_Triangle*)(_bufferTriangle + _bufferCountTriangle);
|
|
|
|
V2F_C4B_T2F_Triangle triangles0 = {
|
|
{v0, color, v2ToTex2F(-(n + t))},
|
|
{v1, color, v2ToTex2F(n - t)},
|
|
{v2, color, v2ToTex2F(-n)},
|
|
};
|
|
triangles[0] = triangles0;
|
|
|
|
V2F_C4B_T2F_Triangle triangles1 = {
|
|
{v3, color, v2ToTex2F(n)},
|
|
{v1, color, v2ToTex2F(n - t)},
|
|
{v2, color, v2ToTex2F(-n)},
|
|
};
|
|
triangles[1] = triangles1;
|
|
|
|
V2F_C4B_T2F_Triangle triangles2 = {
|
|
{v3, color, v2ToTex2F(n)},
|
|
{v4, color, v2ToTex2F(-n)},
|
|
{v2, color, v2ToTex2F(-n)},
|
|
};
|
|
triangles[2] = triangles2;
|
|
|
|
V2F_C4B_T2F_Triangle triangles3 = {
|
|
{v3, color, v2ToTex2F(n)},
|
|
{v4, color, v2ToTex2F(-n)},
|
|
{v5, color, v2ToTex2F(n)},
|
|
};
|
|
triangles[3] = triangles3;
|
|
|
|
V2F_C4B_T2F_Triangle triangles4 = {
|
|
{v6, color, v2ToTex2F(t - n)},
|
|
{v4, color, v2ToTex2F(-n)},
|
|
{v5, color, v2ToTex2F(n)},
|
|
};
|
|
triangles[4] = triangles4;
|
|
|
|
V2F_C4B_T2F_Triangle triangles5 = {
|
|
{v6, color, v2ToTex2F(t - n)},
|
|
{v7, color, v2ToTex2F(t + n)},
|
|
{v5, color, v2ToTex2F(n)},
|
|
};
|
|
triangles[5] = triangles5;
|
|
|
|
_customCommandTriangle.updateVertexBuffer(triangles, _bufferCountTriangle * sizeof(V2F_C4B_T2F),
|
|
vertex_count * sizeof(V2F_C4B_T2F));
|
|
_bufferCountTriangle += vertex_count;
|
|
_dirtyTriangle = true;
|
|
_customCommandTriangle.setVertexDrawInfo(0, _bufferCountTriangle);
|
|
}
|
|
|
|
void DrawNode::drawPolygon(const Vec2* verts,
|
|
int count,
|
|
const Color4B& fillColor,
|
|
float borderWidth,
|
|
const Color4B& borderColor)
|
|
{
|
|
AXASSERT(count >= 0, "invalid count value");
|
|
|
|
bool outline = (borderColor.a > 0.0f && borderWidth > 0.0f);
|
|
|
|
auto triangle_count = outline ? (3 * count - 2) : (count - 2);
|
|
auto vertex_count = 3 * triangle_count;
|
|
ensureCapacity(vertex_count);
|
|
|
|
V2F_C4B_T2F_Triangle* triangles = (V2F_C4B_T2F_Triangle*)(_bufferTriangle + _bufferCountTriangle);
|
|
V2F_C4B_T2F_Triangle* cursor = triangles;
|
|
|
|
for (int i = 0; i < count - 2; i++)
|
|
{
|
|
V2F_C4B_T2F_Triangle tmp = {
|
|
{verts[0], fillColor, v2ToTex2F(Vec2::ZERO)},
|
|
{verts[i + 1], fillColor, v2ToTex2F(Vec2::ZERO)},
|
|
{verts[i + 2], fillColor, v2ToTex2F(Vec2::ZERO)},
|
|
};
|
|
|
|
*cursor++ = tmp;
|
|
}
|
|
|
|
if (outline)
|
|
{
|
|
struct ExtrudeVerts
|
|
{
|
|
Vec2 offset, n;
|
|
};
|
|
struct ExtrudeVerts* extrude = (struct ExtrudeVerts*)malloc(sizeof(struct ExtrudeVerts) * count);
|
|
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
Vec2 v0 = verts[(i - 1 + count) % count];
|
|
Vec2 v1 = verts[i];
|
|
Vec2 v2 = verts[(i + 1) % count];
|
|
|
|
Vec2 n1 = ((v1 - v0).getPerp()).getNormalized();
|
|
Vec2 n2 = ((v2 - v1).getPerp()).getNormalized();
|
|
|
|
Vec2 offset = (n1 + n2) * (1.0f / (Vec2::dot(n1, n2) + 1.0f));
|
|
extrude[i] = {offset, n2};
|
|
}
|
|
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
int j = (i + 1) % count;
|
|
Vec2 v0 = verts[i];
|
|
Vec2 v1 = verts[j];
|
|
|
|
Vec2 n0 = extrude[i].n;
|
|
|
|
Vec2 offset0 = extrude[i].offset;
|
|
Vec2 offset1 = extrude[j].offset;
|
|
|
|
Vec2 inner0 = v0 - offset0 * borderWidth;
|
|
Vec2 inner1 = v1 - offset1 * borderWidth;
|
|
Vec2 outer0 = v0 + offset0 * borderWidth;
|
|
Vec2 outer1 = v1 + offset1 * borderWidth;
|
|
|
|
V2F_C4B_T2F_Triangle tmp1 = {{inner0, borderColor, v2ToTex2F(-n0)},
|
|
{inner1, borderColor, v2ToTex2F(-n0)},
|
|
{outer1, borderColor, v2ToTex2F(n0)}};
|
|
*cursor++ = tmp1;
|
|
|
|
V2F_C4B_T2F_Triangle tmp2 = {{inner0, borderColor, v2ToTex2F(-n0)},
|
|
{outer0, borderColor, v2ToTex2F(n0)},
|
|
{outer1, borderColor, v2ToTex2F(n0)}};
|
|
*cursor++ = tmp2;
|
|
}
|
|
|
|
free(extrude);
|
|
}
|
|
|
|
_customCommandTriangle.updateVertexBuffer(triangles, _bufferCountTriangle * sizeof(V2F_C4B_T2F),
|
|
vertex_count * sizeof(V2F_C4B_T2F));
|
|
_bufferCountTriangle += vertex_count;
|
|
_customCommandTriangle.setVertexDrawInfo(0, _bufferCountTriangle);
|
|
_dirtyTriangle = true;
|
|
}
|
|
|
|
void DrawNode::drawSolidRect(const Vec2& origin, const Vec2& destination, const Color4B& color)
|
|
{
|
|
Vec2 vertices[] = {origin, Vec2(destination.x, origin.y), destination, Vec2(origin.x, destination.y)};
|
|
|
|
drawSolidPoly(vertices, 4, color);
|
|
}
|
|
|
|
void DrawNode::drawSolidPoly(const Vec2* poli, unsigned int numberOfPoints, const Color4B& color)
|
|
{
|
|
drawPolygon(poli, numberOfPoints, color, 0.0, Color4B());
|
|
}
|
|
|
|
void DrawNode::drawSolidCircle(const Vec2& center,
|
|
float radius,
|
|
float angle,
|
|
unsigned int segments,
|
|
float scaleX,
|
|
float scaleY,
|
|
const Color4B& fillColor,
|
|
float borderWidth,
|
|
const Color4B& borderColor)
|
|
{
|
|
const float coef = 2.0f * (float)M_PI / segments;
|
|
|
|
Vec2* vertices = _abuf.get<Vec2>(segments);
|
|
|
|
for (unsigned int i = 0; i < segments; i++)
|
|
{
|
|
float rads = i * coef;
|
|
float j = radius * cosf(rads + angle) * scaleX + center.x;
|
|
float k = radius * sinf(rads + angle) * scaleY + center.y;
|
|
|
|
vertices[i].x = j;
|
|
vertices[i].y = k;
|
|
}
|
|
|
|
drawPolygon(vertices, segments, fillColor, borderWidth, borderColor);
|
|
}
|
|
|
|
void DrawNode::drawSolidCircle(const Vec2& center,
|
|
float radius,
|
|
float angle,
|
|
unsigned int segments,
|
|
float scaleX,
|
|
float scaleY,
|
|
const Color4B& color)
|
|
{
|
|
const float coef = 2.0f * (float)M_PI / segments;
|
|
|
|
Vec2* vertices = _abuf.get<Vec2>(segments);
|
|
|
|
for (unsigned int i = 0; i < segments; i++)
|
|
{
|
|
float rads = i * coef;
|
|
float j = radius * cosf(rads + angle) * scaleX + center.x;
|
|
float k = radius * sinf(rads + angle) * scaleY + center.y;
|
|
|
|
vertices[i].x = j;
|
|
vertices[i].y = k;
|
|
}
|
|
|
|
drawSolidPoly(vertices, segments, color);
|
|
}
|
|
|
|
void DrawNode::drawSolidCircle(const Vec2& center,
|
|
float radius,
|
|
float angle,
|
|
unsigned int segments,
|
|
const Color4B& color)
|
|
{
|
|
drawSolidCircle(center, radius, angle, segments, 1.0f, 1.0f, color);
|
|
}
|
|
|
|
void DrawNode::drawTriangle(const Vec2& p1, const Vec2& p2, const Vec2& p3, const Color4B& color)
|
|
{
|
|
unsigned int vertex_count = 3;
|
|
ensureCapacity(vertex_count);
|
|
|
|
V2F_C4B_T2F a = {p1, color, Tex2F(0.0, 0.0)};
|
|
V2F_C4B_T2F b = {p2, color, Tex2F(0.0, 0.0)};
|
|
V2F_C4B_T2F c = {p3, color, Tex2F(0.0, 0.0)};
|
|
|
|
V2F_C4B_T2F_Triangle* triangles = (V2F_C4B_T2F_Triangle*)(_bufferTriangle + _bufferCountTriangle);
|
|
V2F_C4B_T2F_Triangle triangle = {a, b, c};
|
|
triangles[0] = triangle;
|
|
|
|
_customCommandTriangle.updateVertexBuffer(triangles, _bufferCountTriangle * sizeof(V2F_C4B_T2F),
|
|
vertex_count * sizeof(V2F_C4B_T2F));
|
|
_bufferCountTriangle += vertex_count;
|
|
_dirtyTriangle = true;
|
|
_customCommandTriangle.setVertexDrawInfo(0, _bufferCountTriangle);
|
|
}
|
|
|
|
void DrawNode::clear()
|
|
{
|
|
_bufferCountTriangle = 0;
|
|
_dirtyTriangle = true;
|
|
_bufferCountLine = 0;
|
|
_dirtyLine = true;
|
|
_bufferCountPoint = 0;
|
|
_dirtyPoint = true;
|
|
_lineWidth = _defaultLineWidth;
|
|
}
|
|
|
|
const BlendFunc& DrawNode::getBlendFunc() const
|
|
{
|
|
return _blendFunc;
|
|
}
|
|
|
|
void DrawNode::setBlendFunc(const BlendFunc& blendFunc)
|
|
{
|
|
_blendFunc = blendFunc;
|
|
}
|
|
|
|
void DrawNode::setLineWidth(float lineWidth)
|
|
{
|
|
_lineWidth = lineWidth;
|
|
}
|
|
|
|
float DrawNode::getLineWidth()
|
|
{
|
|
return this->_lineWidth;
|
|
}
|
|
|
|
void DrawNode::visit(Renderer* renderer, const Mat4& parentTransform, uint32_t parentFlags)
|
|
{
|
|
if (_isolated)
|
|
{
|
|
// ignore `parentTransform` from parent
|
|
Node::visit(renderer, Mat4::IDENTITY, parentFlags);
|
|
}
|
|
else
|
|
{
|
|
Node::visit(renderer, parentTransform, parentFlags);
|
|
}
|
|
}
|
|
|
|
NS_AX_END
|