Feature/draw in rect (cocos2d#19664)

* Texture2D draw in point and draw in rectangle tests work

* optimize code

* fix compile error

* make initProgam() private

Author: Mee-gu

cocos/renderer/CCTexture2D.cpp

@@ -45,7 +45,10 @@ THE SOFTWARE.
 #include "base/CCNinePatchImageParser.h"
 #include "renderer/backend/Device.h"
 #include "renderer/backend/StringUtils.h"
+#include "renderer/backend/ProgramState.h"
+#include "renderer/ccShaders.h"
 #include "renderer/CCTextureUtils.h"
+#include "renderer/CCRenderer.h"
 
 #if CC_ENABLE_CACHE_TEXTURE_DATA
     #include "renderer/CCTextureCache.h"
@@ -223,6 +226,7 @@ Texture2D::~Texture2D()
     CC_SAFE_DELETE(_ninePatchInfo);
 
     CC_SAFE_RELEASE(_texture);
+    CC_SAFE_RELEASE(_programState);
 }
 
 Texture2D::PixelFormat Texture2D::getPixelFormat() const
@@ -637,66 +641,6 @@ bool Texture2D::initWithBackendTexture(backend::Texture *texture)
     return true;
 }
 
-
-//// implementation Texture2D (Drawing)
-//
-//void Texture2D::drawAtPoint(const Vec2& point)
-//{
-//    GLfloat    coordinates[] = {
-//        0.0f,    _maxT,
-//        _maxS,_maxT,
-//        0.0f,    0.0f,
-//        _maxS,0.0f };
-//
-//    GLfloat    width = (GLfloat)_pixelsWide * _maxS,
-//        height = (GLfloat)_pixelsHigh * _maxT;
-//
-//    GLfloat        vertices[] = {    
-//        point.x,            point.y,
-//        width + point.x,    point.y,
-//        point.x,            height  + point.y,
-//        width + point.x,    height  + point.y };
-//
-//    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_POSITION);
-//    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_TEX_COORD);
-//    _shaderProgram->use();
-//    _shaderProgram->setUniformsForBuiltins();
-//
-//    glActiveTexture(GL_TEXTURE0);
-//    glBindTexture(GL_TEXTURE_2D, _name);
-//
-//    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
-//    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_TEX_COORD, 2, GL_FLOAT, GL_FALSE, 0, coordinates);
-//
-//    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
-//}
-//
-//void Texture2D::drawInRect(const Rect& rect)
-//{
-//    GLfloat    coordinates[] = {    
-//        0.0f,    _maxT,
-//        _maxS,_maxT,
-//        0.0f,    0.0f,
-//        _maxS,0.0f };
-//
-//    GLfloat    vertices[] = {    rect.origin.x,        rect.origin.y,                            /*0.0f,*/
-//        rect.origin.x + rect.size.width,        rect.origin.y,                            /*0.0f,*/
-//        rect.origin.x,                            rect.origin.y + rect.size.height,        /*0.0f,*/
-//        rect.origin.x + rect.size.width,        rect.origin.y + rect.size.height,        /*0.0f*/ };
-//
-//    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_POSITION);
-//    glEnableVertexAttribArray(GLProgram::VERTEX_ATTRIB_TEX_COORD);
-//    _shaderProgram->use();
-//    _shaderProgram->setUniformsForBuiltins();
-//
-//    glActiveTexture(GL_TEXTURE0);
-//    glBindTexture(GL_TEXTURE_2D, _name);
-//
-//    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
-//    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_TEX_COORD, 2, GL_FLOAT, GL_FALSE, 0, coordinates);
-//    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
-//}
-
 bool Texture2D::hasMipmaps() const
 {
     return _hasMipmaps;
@@ -927,6 +871,84 @@ void Texture2D::generateMipmap()
     _hasMipmaps = true;
 }
 
+void Texture2D::initProgram()
+{
+    if(_programState != nullptr)
+        return;
+    
+    auto& pipelineDescriptor = _customCommand.getPipelineDescriptor();
+    //create program state
+    _programState = new (std::nothrow) cocos2d::backend::ProgramState(
+                                                                      positionTexture_vert, positionTexture_frag);
+    _mvpMatrixLocation = _programState->getUniformLocation("u_MVPMatrix");
+    _textureLocation = _programState->getUniformLocation("u_texture");
+    
+    pipelineDescriptor.programState = _programState;
+    
+    //setup vertex layout
+    auto& vertexLayout = pipelineDescriptor.vertexLayout;
+    auto& attributes = _programState->getProgram()->getActiveAttributes();
+    auto iter = attributes.find("a_position");
+    if(iter != attributes.end())
+        vertexLayout.setAttribute("a_position", iter->second.location, backend::VertexFormat::FLOAT2, 0, false);
+    
+    iter = attributes.find("a_texCoord");
+    if(iter != attributes.end())
+        vertexLayout.setAttribute("a_texCoord", iter->second.location, backend::VertexFormat::FLOAT2, 2 * sizeof(float), false);
+    
+    vertexLayout.setLayout(4 * sizeof(float), backend::VertexStepMode::VERTEX);
+    
+    //create vertex buffer
+    _customCommand.setDrawType(CustomCommand::DrawType::ARRAY);
+    _customCommand.setPrimitiveType(CustomCommand::PrimitiveType::TRIANGLE_STRIP);
+    _customCommand.createVertexBuffer(4 * sizeof(float), 4, CustomCommand::BufferUsage::DYNAMIC);
+    
+    //setup blend state
+    BlendFunc blendFunc;
+    if(hasPremultipliedAlpha())
+    {
+        blendFunc = BlendFunc::ALPHA_PREMULTIPLIED;
+    }
+    else
+    {
+        blendFunc = BlendFunc::ALPHA_NON_PREMULTIPLIED;
+    }
+    
+    auto& blendDescriptor = pipelineDescriptor.blendDescriptor;
+    blendDescriptor.blendEnabled = true;
+    blendDescriptor.sourceRGBBlendFactor = blendDescriptor.sourceAlphaBlendFactor = blendFunc.src;
+    blendDescriptor.destinationRGBBlendFactor = blendDescriptor.destinationAlphaBlendFactor = blendFunc.dst;
+    
+    _programState->setTexture(_textureLocation, 0, _texture);
+}
+
+void Texture2D::drawAtPoint(const Vec2 &point, float globalZOrder)
+{
+    float width = (float)_pixelsWide * _maxS;
+    float height = (float)_pixelsHigh * _maxT;
+    Rect rect = { point.x, point.y, width, height };
+    drawInRect(rect, globalZOrder);
+}
 
+void Texture2D::drawInRect(const Rect& rect, float globalZOrder)
+{
+    initProgram();
+    _customCommand.init(globalZOrder);
+    auto director = Director::getInstance();
+    const auto& modelView = director->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
+    const auto& projection = director->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
+    
+    Mat4 matrixMVP = projection * modelView;
+    
+    float vertexData[] = {
+        rect.origin.x,                      rect.origin.y,                      0.0f,   _maxT,
+        rect.size.width + rect.origin.x,    rect.origin.y,                      _maxS,  _maxT,
+        rect.origin.x,                      rect.size.height  + rect.origin.y,  0.0f,   0.0f,
+        rect.size.width + rect.origin.x,    rect.size.height  + rect.origin.y,  _maxS,  0.0f };
+    
+    _programState->setUniform(_mvpMatrixLocation, matrixMVP.m, sizeof(matrixMVP.m));
+    _customCommand.updateVertexBuffer(vertexData, sizeof(vertexData));
+    Director::getInstance()->getRenderer()->addCommand(&_customCommand);
+}
 
 NS_CC_END

cocos/renderer/CCTexture2D.h

@@ -34,6 +34,7 @@ THE SOFTWARE.
 #include "base/CCRef.h"
 #include "math/CCGeometry.h"
 #include "base/ccTypes.h"
+#include "renderer/CCCustomCommand.h"
 
 NS_CC_BEGIN
 
@@ -50,6 +51,7 @@ namespace ui
 namespace backend {
     class Texture2D;
     class Texture;
+    class ProgramState;
 }
 
 /**
@@ -245,9 +247,9 @@ class CC_DLL Texture2D : public Ref
     These functions require GL_TEXTURE_2D and both GL_VERTEX_ARRAY and GL_TEXTURE_COORD_ARRAY client states to be enabled.
     */
     /** Draws a texture at a given point. */
-//    void drawAtPoint(const Vec2& point);
+    void drawAtPoint(const Vec2& point, float globalZOrder);
     /** Draws a texture inside a rect.*/
-//    void drawInRect(const Rect& rect);
+    void drawInRect(const Rect& rect, float globalZOrder);
 
     /**
     Extensions to make it easy to create a Texture2D object from an image file.
@@ -380,6 +382,7 @@ class CC_DLL Texture2D : public Ref
     Texture2D* getAlphaTexture() const;
 
     bool getAlphaTextureName() const;
+    
 public:
     /** Get pixel info map, the key-value pairs is PixelFormat and PixelFormatInfo.*/
     static const PixelFormatInfoMap& getPixelFormatInfoMap();
@@ -427,10 +430,9 @@ class CC_DLL Texture2D : public Ref
      * @param capInsets The parsed capInset from a .9 patch image.
      */
     void addSpriteFrameCapInset(SpriteFrame* spritframe, const Rect& capInsets);
-
-
-
 
+    void initProgram();
+   
 protected:
     /** pixel format of the texture */
     Texture2D::PixelFormat _pixelFormat;
@@ -472,6 +474,10 @@ class CC_DLL Texture2D : public Ref
     std::string _filePath;
 
     Texture2D* _alphaTexture;
+    backend::ProgramState* _programState = nullptr;
+    backend::UniformLocation _mvpMatrixLocation;
+    backend::UniformLocation _textureLocation;
+    CustomCommand _customCommand;
 };
 
 

tests/cpp-tests/Classes/Texture2dTest/Texture2dTest.cpp

@@ -1769,7 +1769,7 @@ void TextureDrawAtPoint::onEnter()
 
     _tex1 = Director::getInstance()->getTextureCache()->addImage("Images/grossinis_sister1.png");
     _Tex2F = Director::getInstance()->getTextureCache()->addImage("Images/grossinis_sister2.png");
-
+    
     _tex1->retain();
     _Tex2F->retain();
 }
@@ -1794,11 +1794,7 @@ void TextureDrawAtPoint::draw(Renderer *renderer, const Mat4 &transform, uint32_
 {
     TextureDemo::draw(renderer, transform, flags);
 
-    _renderCmd.init(_globalZOrder, transform, flags);
-    //TODO: impl new CustomRenderer
-    //_renderCmd.func = CC_CALLBACK_0(TextureDrawAtPoint::onDraw, this, transform, flags);
-    //renderer->addCommand(&_renderCmd);
-
+    onDraw(transform, flags);
 }
 
 void TextureDrawAtPoint::onDraw(const Mat4 &transform, uint32_t flags)
@@ -1810,9 +1806,8 @@ void TextureDrawAtPoint::onDraw(const Mat4 &transform, uint32_t flags)
 
     auto s = Director::getInstance()->getWinSize();
 
-    //TODO: minggo
-//    _tex1->drawAtPoint(Vec2(s.width/2-50, s.height/2 - 50));
-//    _Tex2F->drawAtPoint(Vec2(s.width/2+50, s.height/2 - 50));
+    _tex1->drawAtPoint(Vec2(s.width/2-50, s.height/2 - 50), _globalZOrder);
+    _Tex2F->drawAtPoint(Vec2(s.width/2+50, s.height/2 - 50), _globalZOrder);
 
     director->popMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
 }
@@ -1838,11 +1833,7 @@ TextureDrawInRect::~TextureDrawInRect()
 void TextureDrawInRect::draw(Renderer *renderer, const Mat4 &transform, uint32_t flags)
 {
     TextureDemo::draw(renderer, transform, flags);
-
-    _renderCmd.init(_globalZOrder, transform, flags);
-    _renderCmd.func = CC_CALLBACK_0(TextureDrawInRect::onDraw, this, transform, flags);
-    //TODO: impl new CustomRenderer
-    //renderer->addCommand(&_renderCmd);
+    onDraw(transform, flags);
 }
 
 void TextureDrawInRect::onDraw(const Mat4 &transform, uint32_t flags)
@@ -1857,9 +1848,8 @@ void TextureDrawInRect::onDraw(const Mat4 &transform, uint32_t flags)
     auto rect1 = Rect( s.width/2 - 80, 20, _tex1->getContentSize().width * 0.5f, _tex1->getContentSize().height *2 );
     auto rect2 = Rect( s.width/2 + 80, s.height/2, _tex1->getContentSize().width * 2, _tex1->getContentSize().height * 0.5f );
 
-    //TODO: minggo
-//    _tex1->drawInRect(rect1);
-//    _Tex2F->drawInRect(rect2);
+    _tex1->drawInRect(rect1, _globalZOrder);
+    _Tex2F->drawInRect(rect2, _globalZOrder);
 
     director->popMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
 }

tests/cpp-tests/Classes/Texture2dTest/Texture2dTest.h

@@ -475,7 +475,6 @@ class TextureDrawAtPoint : public TextureDemo
 protected:
     void onDraw(const cocos2d::Mat4& transform, uint32_t flags);
 
-    cocos2d::CustomCommand _renderCmd;
     cocos2d::Texture2D* _tex1, *_Tex2F;
 };
 
@@ -491,7 +490,6 @@ class TextureDrawInRect : public TextureDemo
 protected:
     void onDraw(const cocos2d::Mat4& transform, uint32_t flags);
 
-    cocos2d::CustomCommand _renderCmd;
     cocos2d::Texture2D* _tex1, *_Tex2F;
 };