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axmol/cocos/renderer/CCMeshCommand.cpp

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/****************************************************************************
Copyright (c) 2013-2014 Chukong Technologies Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "renderer/CCMeshCommand.h"
#include "base/ccMacros.h"
#include "base/CCConfiguration.h"
#include "base/CCDirector.h"
#include "base/CCEventCustom.h"
#include "base/CCEventListenerCustom.h"
#include "base/CCEventDispatcher.h"
#include "base/CCEventType.h"
#include "base/CCConfiguration.h"
#include "2d/CCLight.h"
#include "renderer/ccGLStateCache.h"
#include "renderer/CCGLProgramState.h"
#include "renderer/CCRenderer.h"
#include "renderer/CCTextureAtlas.h"
#include "renderer/CCTexture2D.h"
#include "renderer/ccGLStateCache.h"
#include "renderer/CCTechnique.h"
#include "renderer/CCMaterial.h"
#include "renderer/CCPass.h"
#include "xxhash.h"
NS_CC_BEGIN
MeshCommand::MeshCommand()
: _textureID(0)
, _glProgramState(nullptr)
, _blendType(BlendFunc::DISABLE)
, _displayColor(1.0f, 1.0f, 1.0f, 1.0f)
, _matrixPalette(nullptr)
, _matrixPaletteSize(0)
, _materialID(0)
, _vao(0)
, _cullFaceEnabled(false)
, _cullFace(GL_BACK)
, _depthTestEnabled(false)
, _depthWriteEnabled(false)
, _forceDepthWrite(false)
, _renderStateCullFaceEnabled(false)
, _renderStateDepthTest(false)
, _renderStateDepthWrite(GL_FALSE)
, _material(nullptr)
{
_type = RenderCommand::Type::MESH_COMMAND;
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
// listen the event that renderer was recreated on Android/WP8
_rendererRecreatedListener = EventListenerCustom::create(EVENT_RENDERER_RECREATED, CC_CALLBACK_1(MeshCommand::listenRendererRecreated, this));
Director::getInstance()->getEventDispatcher()->addEventListenerWithFixedPriority(_rendererRecreatedListener, -1);
#endif
}
void MeshCommand::init(float globalZOrder,
Material* material,
GLuint vertexBuffer,
GLuint indexBuffer,
GLenum primitive,
GLenum indexFormat,
ssize_t indexCount,
const cocos2d::Mat4 &mv,
uint32_t flags)
{
CCASSERT(material, "material cannot be nill");
RenderCommand::init(globalZOrder, mv, flags);
_globalOrder = globalZOrder;
_material = material;
_vertexBuffer = vertexBuffer;
_indexBuffer = indexBuffer;
_primitive = primitive;
_indexFormat = indexFormat;
_indexCount = indexCount;
_mv.set(mv);
_is3D = true;
}
void MeshCommand::init(float globalOrder,
GLuint textureID,
GLProgramState* glProgramState,
BlendFunc blendType,
GLuint vertexBuffer,
GLuint indexBuffer,
GLenum primitive,
GLenum indexFormat,
ssize_t indexCount,
const Mat4 &mv)
{
init(globalOrder, textureID, glProgramState, blendType, vertexBuffer, indexBuffer, primitive, indexFormat, indexCount, mv, 0);
}
void MeshCommand::init(float globalZOrder,
GLuint textureID,
cocos2d::GLProgramState *glProgramState,
cocos2d::BlendFunc blendType,
GLuint vertexBuffer,
GLuint indexBuffer,
GLenum primitive,
GLenum indexFormat,
ssize_t indexCount,
const cocos2d::Mat4 &mv,
uint32_t flags)
{
CCASSERT(glProgramState, "GLProgramState cannot be nill");
RenderCommand::init(globalZOrder, mv, flags);
_globalOrder = globalZOrder;
_textureID = textureID;
_blendType = blendType;
_glProgramState = glProgramState;
_vertexBuffer = vertexBuffer;
_indexBuffer = indexBuffer;
_primitive = primitive;
_indexFormat = indexFormat;
_indexCount = indexCount;
_mv.set(mv);
_is3D = true;
}
void MeshCommand::setCullFaceEnabled(bool enable)
{
CCASSERT(!_material, "If using material, you should call material->setCullFace()");
_cullFaceEnabled = enable;
}
void MeshCommand::setCullFace(GLenum cullFace)
{
CCASSERT(!_material, "If using material, you should call material->setCullFaceSide()");
_cullFace = cullFace;
}
void MeshCommand::setDepthTestEnabled(bool enable)
{
CCASSERT(!_material, "If using material, you should call material->setDepthTest()");
_depthTestEnabled = enable;
}
void MeshCommand::setDepthWriteEnabled(bool enable)
{
CCASSERT(!_material, "If using material, you should call material->setDepthWrite()");
_forceDepthWrite = enable;
_depthWriteEnabled = enable;
}
void MeshCommand::setDisplayColor(const Vec4& color)
{
CCASSERT(!_material, "If using material, you should set the color as a uniform: use u_color");
_displayColor = color;
}
void MeshCommand::setMatrixPalette(const Vec4* matrixPalette)
{
CCASSERT(!_material, "If using material, you should set the color as a uniform: use u_matrixPalette");
_matrixPalette = matrixPalette;
}
void MeshCommand::setMatrixPaletteSize(int size)
{
CCASSERT(!_material, "If using material, you should set the color as a uniform: use u_matrixPalette with its size");
_matrixPaletteSize = size;
}
void MeshCommand::setTransparent(bool value)
{
CCASSERT(!_material, "If using material, you shouldn't call setTransparent.");
_isTransparent = value;
//Skip batching for transparent mesh
_skipBatching = value;
if (_isTransparent && !_forceDepthWrite)
{
_depthWriteEnabled = false;
}
else
{
_depthWriteEnabled = true;
}
}
MeshCommand::~MeshCommand()
{
releaseVAO();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
Director::getInstance()->getEventDispatcher()->removeEventListener(_rendererRecreatedListener);
#endif
}
void MeshCommand::applyRenderState()
{
CCASSERT(!_material, "Must not be called when using materials");
// blend and texture
GL::bindTexture2D(_textureID);
GL::blendFunc(_blendType.src, _blendType.dst);
// cull face
_renderStateCullFaceEnabled = glIsEnabled(GL_CULL_FACE) != GL_FALSE;
GLint cullface;
glGetIntegerv(GL_CULL_FACE_MODE, &cullface);
_renderStateCullFace = (GLenum)cullface;
if (_cullFaceEnabled != _renderStateCullFaceEnabled)
{
_cullFaceEnabled ? glEnable(GL_CULL_FACE) : glDisable(GL_CULL_FACE);
}
if (_cullFace != _renderStateCullFace)
{
glCullFace(_cullFace);
}
// depth
_renderStateDepthTest = (glIsEnabled(GL_DEPTH_TEST) != GL_FALSE);
glGetBooleanv(GL_DEPTH_WRITEMASK, &_renderStateDepthWrite);
if (_depthTestEnabled != _renderStateDepthTest)
{
_depthTestEnabled ? glEnable(GL_DEPTH_TEST) : glDisable(GL_DEPTH_TEST);
}
if (_depthWriteEnabled != _renderStateDepthWrite)
{
glDepthMask(_depthWriteEnabled);
}
}
void MeshCommand::restoreRenderState()
{
CCASSERT(!_material, "Must not be called when using Material");
// cull
if (_cullFaceEnabled != _renderStateCullFaceEnabled)
{
_renderStateCullFaceEnabled ? glEnable(GL_CULL_FACE) : glDisable(GL_CULL_FACE);
}
if (_cullFace != _renderStateCullFace)
{
glCullFace(_renderStateCullFace);
}
// depth
if (_depthTestEnabled != _renderStateDepthTest)
{
_renderStateDepthTest ? glEnable(GL_DEPTH_TEST) : glDisable(GL_DEPTH_TEST);
}
if (_depthWriteEnabled != _renderStateDepthWrite)
{
glDepthMask(_renderStateDepthWrite);
}
}
void MeshCommand::genMaterialID(GLuint texID, void* glProgramState, GLuint vertexBuffer, GLuint indexBuffer, BlendFunc blend)
{
int intArray[7] = {0};
intArray[0] = (int)texID;
*(int**)&intArray[1] = (int*) glProgramState;
intArray[3] = (int) vertexBuffer;
intArray[4] = (int) indexBuffer;
intArray[5] = (int) blend.src;
intArray[6] = (int) blend.dst;
_materialID = XXH32((const void*)intArray, sizeof(intArray), 0);
}
uint32_t MeshCommand::getMaterialID() const
{
return _materialID;
}
void MeshCommand::preBatchDraw()
{
// Do nothing if using material since each pass needs to bind its own VAO
if (!_material)
{
if (Configuration::getInstance()->supportsShareableVAO() && _vao == 0)
buildVAO();
if (_vao)
{
GL::bindVAO(_vao);
}
else
{
glBindBuffer(GL_ARRAY_BUFFER, _vertexBuffer);
// FIXME: Assumes that all the passes in the Material share the same Vertex Attribs
GLProgramState* programState = _material
? _material->_currentTechnique->_passes.at(0)->getGLProgramState()
: _glProgramState;
programState->applyAttributes();
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _indexBuffer);
}
}
}
void MeshCommand::batchDraw()
{
if (_material)
{
for(const auto& pass: _material->_currentTechnique->_passes)
{
pass->bind(_mv);
glDrawElements(_primitive, (GLsizei)_indexCount, _indexFormat, 0);
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, _indexCount);
pass->unbind();
}
}
else
{
_glProgramState->applyGLProgram(_mv);
// set render state
applyRenderState();
// Draw
glDrawElements(_primitive, (GLsizei)_indexCount, _indexFormat, 0);
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, _indexCount);
//restore render state
restoreRenderState();
}
}
void MeshCommand::postBatchDraw()
{
// when using material, unbind is after draw
if (!_material)
{
if (_vao)
{
GL::bindVAO(0);
}
else
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
}
}
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);
//restore render state
restoreRenderState();
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void MeshCommand::buildVAO()
{
// FIXME: Assumes that all the passes in the Material share the same Vertex Attribs
GLProgramState* programState = (_material != nullptr)
? _material->_currentTechnique->_passes.at(0)->getGLProgramState()
: _glProgramState;
releaseVAO();
glGenVertexArrays(1, &_vao);
GL::bindVAO(_vao);
glBindBuffer(GL_ARRAY_BUFFER, _vertexBuffer);
auto flags = programState->getVertexAttribsFlags();
for (int i = 0; flags > 0; i++) {
int flag = 1 << i;
if (flag & flags)
glEnableVertexAttribArray(i);
flags &= ~flag;
}
programState->applyAttributes(false);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _indexBuffer);
GL::bindVAO(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}
void MeshCommand::releaseVAO()
{
if (_vao)
{
glDeleteVertexArrays(1, &_vao);
_vao = 0;
GL::bindVAO(0);
}
}
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
void MeshCommand::listenRendererRecreated(EventCustom* event)
{
_vao = 0;
}
#endif
NS_CC_END
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