mirror of https://github.com/axmolengine/axmol.git
107 lines
3.8 KiB
C++
107 lines
3.8 KiB
C++
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/****************************************************************************
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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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http://www.cocos2d-x.org
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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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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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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
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THE SOFTWARE.
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****************************************************************************/
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#include "renderer/CCTrianglesCommand.h"
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#include "xxhash.h"
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#include "renderer/CCRenderer.h"
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#include "renderer/CCTexture2D.h"
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#include "base//ccUtils.h"
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NS_CC_BEGIN
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TrianglesCommand::TrianglesCommand()
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{
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_type = RenderCommand::Type::TRIANGLES_COMMAND;
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}
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void TrianglesCommand::init(float globalOrder, Texture2D* texture, const BlendFunc& blendType, const Triangles& triangles, const Mat4& mv, uint32_t flags)
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{
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RenderCommand::init(globalOrder, mv, flags);
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_triangles = triangles;
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if(_triangles.indexCount % 3 != 0)
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{
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unsigned int count = _triangles.indexCount;
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_triangles.indexCount = count / 3 * 3;
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CCLOGERROR("Resize indexCount from %d to %d, size must be multiple times of 3", count, _triangles.indexCount);
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}
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_mv = mv;
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if (_program != _pipelineDescriptor.programState->getProgram() ||
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_texture != texture->getBackendTexture() ||
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_blendType != blendType)
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{
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_program = _pipelineDescriptor.programState->getProgram();
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_texture = texture->getBackendTexture();
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_blendType = blendType;
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//since it would be too expensive to check the uniforms, simplify enable batching for built-in program.
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if(_program->getProgramType() == backend::ProgramType::INVALID_PROGRAM)
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setSkipBatching(true);
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//TODO: minggo set it in Node?
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auto& blendDescriptor = _pipelineDescriptor.blendDescriptor;
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blendDescriptor.blendEnabled = true;
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blendDescriptor.sourceRGBBlendFactor = blendDescriptor.sourceAlphaBlendFactor = blendType.src;
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blendDescriptor.destinationRGBBlendFactor = blendDescriptor.destinationAlphaBlendFactor = blendType.dst;
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if(!isSkipBatching())
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generateMaterialID();
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}
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}
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void TrianglesCommand::updateMaterialID()
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{
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setSkipBatching(false);
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generateMaterialID();
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}
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TrianglesCommand::~TrianglesCommand()
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{
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}
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void TrianglesCommand::generateMaterialID()
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{
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struct
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{
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void* texture;
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void* program;
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backend::BlendFactor src;
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backend::BlendFactor dst;
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}hashMe;
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// NOTE: Initialize hashMe struct to make the value of padding bytes be filled with zero.
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// It's important since XXH32 below will also consider the padding bytes which probably
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// are set to random values by different compilers.
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memset(&hashMe, 0, sizeof(hashMe));
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hashMe.texture = _texture;
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hashMe.src = _blendType.src;
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hashMe.dst = _blendType.dst;
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hashMe.program = _program;
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_materialID = XXH32((const void*)&hashMe, sizeof(hashMe), 0);
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}
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NS_CC_END
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