mirror of https://github.com/axmolengine/axmol.git
270 lines
9.1 KiB
C++
270 lines
9.1 KiB
C++
/****************************************************************************
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Copyright (c) 2015-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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https://axmolengine.github.io/
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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 "navmesh/NavMeshDebugDraw.h"
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#if AX_USE_NAVMESH
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# include <stddef.h> // offsetof
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# include "base/Types.h"
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# include "renderer/backend/ProgramState.h"
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# include "renderer/backend/Device.h"
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# include "renderer/Renderer.h"
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# include "renderer/RenderState.h"
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# include "renderer/Shaders.h"
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# include "base/Director.h"
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# include "base/Macros.h"
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NS_AX_BEGIN
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NavMeshDebugDraw::NavMeshDebugDraw()
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{
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auto* program = backend::Program::getBuiltinProgram(backend::ProgramType::POSITION_COLOR);
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_programState = new backend::ProgramState(program);
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_locMVP = _programState->getUniformLocation("u_MVPMatrix");
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// the POSITION_COLOR default vertex layout is: V3F_C4B, so we need modify it
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auto vertexLayout = _programState->getMutableVertexLayout();
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vertexLayout->setAttrib("a_position",
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_programState->getAttributeLocation(backend::Attribute::POSITION),
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backend::VertexFormat::FLOAT3,
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offsetof(V3F_C4F, position),
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false);
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vertexLayout->setAttrib("a_color",
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_programState->getAttributeLocation(backend::Attribute::COLOR),
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backend::VertexFormat::FLOAT4,
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offsetof(V3F_C4F, color),
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false);
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vertexLayout->setStride(sizeof(V3F_C4F));
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}
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void NavMeshDebugDraw::initCustomCommand(CustomCommand& command)
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{
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command.set3D(true);
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command.setTransparent(true);
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command.init(0, Mat4::IDENTITY, Node::FLAGS_RENDER_AS_3D);
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command.setDrawType(CustomCommand::DrawType::ARRAY);
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auto& pipelineDescriptor = command.getPipelineDescriptor();
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pipelineDescriptor.programState = _programState;
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auto& blend = pipelineDescriptor.blendDescriptor;
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blend.blendEnabled = true;
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blend.sourceRGBBlendFactor = blend.sourceAlphaBlendFactor = BlendFunc::ALPHA_NON_PREMULTIPLIED.src;
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blend.destinationRGBBlendFactor = blend.destinationAlphaBlendFactor = BlendFunc::ALPHA_NON_PREMULTIPLIED.dst;
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}
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void NavMeshDebugDraw::vertex(const float /*x*/,
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const float /*y*/,
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const float /*z*/,
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unsigned int /*color*/,
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const float /*u*/,
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const float /*v*/)
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{}
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void NavMeshDebugDraw::vertex(const float* pos, unsigned int color, const float* uv)
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{
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vertex(pos[0], pos[1], pos[2], color, uv[0], uv[1]);
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}
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void NavMeshDebugDraw::vertex(const float x, const float y, const float z, unsigned int color)
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{
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if (!_currentPrimitive)
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return;
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V3F_C4F vertex = {Vec3(x, y, z), getColor(color)};
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_vertices.emplace_back(vertex);
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_dirtyBuffer = true;
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}
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void NavMeshDebugDraw::vertex(const float* pos, unsigned int color)
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{
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vertex(pos[0], pos[1], pos[2], color);
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}
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NavMeshDebugDraw::~NavMeshDebugDraw()
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{
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for (auto&& iter : _primitiveList)
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{
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delete iter;
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}
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AX_SAFE_RELEASE_NULL(_programState);
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AX_SAFE_RELEASE_NULL(_vertexBuffer);
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}
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void NavMeshDebugDraw::depthMask(bool state)
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{
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_currentDepthMask = state;
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}
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void NavMeshDebugDraw::begin(duDebugDrawPrimitives prim, float size /*= 1.0f*/)
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{
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if (_currentPrimitive)
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return;
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_currentPrimitive = new Primitive;
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_currentPrimitive->type = getPrimitiveType(prim);
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_currentPrimitive->depthMask = _currentDepthMask;
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_currentPrimitive->start = _vertices.size();
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_currentPrimitive->size = size;
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}
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void NavMeshDebugDraw::end()
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{
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if (!_currentPrimitive)
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return;
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_currentPrimitive->end = _vertices.size();
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_primitiveList.emplace_back(_currentPrimitive);
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_currentPrimitive = nullptr;
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}
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Vec4 NavMeshDebugDraw::getColor(unsigned int col)
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{
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const unsigned int r = col & 0xff;
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const unsigned int g = (col >> 8) & 0xff;
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const unsigned int b = (col >> 16) & 0xff;
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const unsigned int a = (col >> 24) & 0xff;
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float factor = 1.0f / 255.0f;
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return Vec4(r, g, b, a) * factor;
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}
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backend::PrimitiveType NavMeshDebugDraw::getPrimitiveType(duDebugDrawPrimitives prim)
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{
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switch (prim)
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{
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case DU_DRAW_POINTS:
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return backend::PrimitiveType::POINT;
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case DU_DRAW_LINES:
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return backend::PrimitiveType::LINE;
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case DU_DRAW_TRIS:
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return backend::PrimitiveType::TRIANGLE;
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default:
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return backend::PrimitiveType::POINT;
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}
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}
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void NavMeshDebugDraw::draw(Renderer* renderer)
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{
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auto& transform = Director::getInstance()->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
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auto beforeCommand = renderer->nextCallbackCommand();
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auto afterCommand = renderer->nextCallbackCommand();
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beforeCommand->init(0, Mat4::IDENTITY, Node::FLAGS_RENDER_AS_3D);
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afterCommand->init(0, Mat4::IDENTITY, Node::FLAGS_RENDER_AS_3D);
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beforeCommand->func = AX_CALLBACK_0(NavMeshDebugDraw::onBeforeVisitCmd, this);
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afterCommand->func = AX_CALLBACK_0(NavMeshDebugDraw::onAfterVisitCmd, this);
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beforeCommand->set3D(true);
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beforeCommand->setTransparent(true);
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afterCommand->set3D(true);
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afterCommand->setTransparent(true);
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_programState->setUniform(_locMVP, transform.m, sizeof(transform.m));
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renderer->addCommand(beforeCommand);
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if (!_vertexBuffer || _vertexBuffer->getSize() < _vertices.size() * sizeof(_vertices[0]))
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{
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_vertexBuffer = backend::Device::getInstance()->newBuffer(
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_vertices.size() * sizeof(_vertices[0]), backend::BufferType::VERTEX, backend::BufferUsage::STATIC);
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_dirtyBuffer = true;
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}
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if (_dirtyBuffer)
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{
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_vertexBuffer->updateData(_vertices.data(), sizeof(_vertices[0]) * _vertices.size());
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_dirtyBuffer = false;
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}
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int idx = 0;
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if (_commands.size() < _primitiveList.size())
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{
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_commands.resize(_primitiveList.size());
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}
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for (auto&& iter : _primitiveList)
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{
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if (iter->type == backend::PrimitiveType::POINT)
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continue;
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if (iter->end - iter->start <= 0)
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continue;
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auto& command = _commands[idx];
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initCustomCommand(command);
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command.setBeforeCallback(AX_CALLBACK_0(NavMeshDebugDraw::onBeforeEachCommand, this, iter->depthMask));
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command.setVertexBuffer(_vertexBuffer);
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command.setPrimitiveType(iter->type);
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command.setVertexDrawInfo(iter->start, iter->end - iter->start);
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renderer->addCommand(&command);
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AX_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, iter->end - iter->start);
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idx++;
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}
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renderer->addCommand(afterCommand);
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}
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void NavMeshDebugDraw::onBeforeVisitCmd()
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{
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auto* renderer = Director::getInstance()->getRenderer();
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_rendererDepthTestEnabled = renderer->getDepthTest();
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_rendererDepthCmpFunc = renderer->getDepthCompareFunction();
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_rendererCullMode = renderer->getCullMode();
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_rendererDepthWrite = renderer->getDepthWrite();
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_rendererWinding = renderer->getWinding();
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renderer->setCullMode(backend::CullMode::NONE);
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renderer->setDepthTest(true);
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}
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void NavMeshDebugDraw::onAfterVisitCmd()
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{
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auto* renderer = Director::getInstance()->getRenderer();
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renderer->setDepthTest(_rendererDepthTestEnabled);
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renderer->setDepthCompareFunction(_rendererDepthCmpFunc);
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renderer->setCullMode(_rendererCullMode);
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renderer->setDepthWrite(_rendererDepthWrite);
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renderer->setWinding(_rendererWinding);
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}
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void NavMeshDebugDraw::onBeforeEachCommand(bool enableDepthWrite)
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{
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auto* renderer = Director::getInstance()->getRenderer();
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renderer->setDepthWrite(enableDepthWrite);
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}
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void NavMeshDebugDraw::clear()
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{
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_vertices.clear();
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for (auto&& iter : _primitiveList)
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{
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delete iter;
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}
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_primitiveList.clear();
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}
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NS_AX_END
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#endif // AX_USE_NAVMESH
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