use GLSL shaders

TODO

@@ -14,11 +14,10 @@ fix moving windows and tooltips conflicts
 todo display otclient icon in window bar
 remake otui styles states system
 padding
-
+break UILabel lines
 
 rename Game to g_game, etc
 implement Console key binding
-fatal error if sprite load fails
 impl vertical sync, clipboard
 crash handler
 modify COnnection::poll()
@@ -29,4 +28,7 @@ bind every global lua function in a static class
 use metatable for Point,Rect,Color,Size lua classes
 lua binder generator
 restore win32 platform
-set special types for g_configs like lists/point/size
+set special types for g_configs like lists/point/size
+restore ctrl+g and keybindings
+create a class for reading binary files
+handle corrupt errors in dat/spr

modules/addon_console/commands.lua

@@ -0,0 +1,5 @@
+function dumpWidgets()
+  for i=1,UI.root:getChildCount() do
+    print(UI.root:getChildByIndex(i):getId())
+  end
+end

modules/addon_console/console.lua

@@ -34,7 +34,7 @@ local function completeCommand()
   local cursorPos = commandLineEdit:getCursorPos()
   if cursorPos == 0 then return end
 
-  local commandBegin = string.sub(commandLineEdit:getText(), 1, cursorPos)
+  local commandBegin = commandLineEdit:getText():sub(1, cursorPos)
   local possibleCommands = {}
 
   -- create a list containing all globals
@@ -43,7 +43,7 @@ local function completeCommand()
 
   -- match commands
   for k,v in pairs(allVars) do
-    if string.sub(k, 1, cursorPos) == commandBegin then
+    if k:sub(1, cursorPos) == commandBegin then
       table.insert(possibleCommands, k)
     end
   end
@@ -63,9 +63,9 @@ local function completeCommand()
       if #possibleCommands[1] < cursorPos then
         break
       end
-      expandedComplete = commandBegin .. string.sub(possibleCommands[1], cursorPos, cursorPos)
+      expandedComplete = commandBegin .. possibleCommands[1]:sub(cursorPos, cursorPos)
       for i,v in ipairs(possibleCommands) do
-        if string.sub(v, 1, #expandedComplete) ~= expandedComplete then
+        if v:sub(1, #expandedComplete) ~= expandedComplete then
           done = true
         end
       end

modules/addon_console/console.otmod

@@ -8,11 +8,9 @@ Module
   autoLoad: true
   autoLoadPriority: 20
 
-  dependencies:
-    - core
-
   onLoad: |
     require 'console'
+    require 'commands'
     Console.init()
     return true
 

modules/client/client.lua

@@ -3,7 +3,7 @@ Client = { }
 -- TODO: load and save configurations
 function Client.init()
   g_window.move({ x=220, y=220 })
-  g_window.resize({ width=800, height=600 })
+  g_window.resize({ width=800, height=480 })
   g_window.setTitle('OTClient')
   g_window.setIcon('clienticon.png')
   return true

modules/client_entergame/entergame.lua

@@ -23,8 +23,8 @@ local function onError(protocol, error)
 end
 
 local function onMotd(protocol, motd)
-  motdNumber = tonumber(string.sub(motd, 0, string.find(motd, "\n")))
+  motdNumber = tonumber(motd:sub(0, motd:find("\n")))
-  motdMessage = string.sub(motd, string.find(motd, "\n") + 1, string.len(motd))
+  motdMessage = motd:sub(motd:find("\n") + 1, #motd)
   TopMenu.getButton('motdButton'):show()
 end
 

modules/client_options/options.lua

@@ -7,7 +7,7 @@ local vsyncEnabled = false
 
 function getConfig(name, default)
   if g_configs.exists(name) then
-    local val = string.trim(g_configs.get(name))
+    local val = g_configs.get(name):trim()
     if val == 'true' or val == 'false' then
       return toboolean(val)
     else

modules/core_scripts/const.lua

@@ -1,4 +1,3 @@
--- AnchorEdge
 AnchorNone = 0
 AnchorTop = 1
 AnchorBottom = 2
@@ -15,9 +14,6 @@ LogFatal = 4
 
 ActiveFocusReason = 2
 
-EmptyFunction = function() end
-
--- KeyCodes
 KeyUnknown = 0
 KeyEscape = 1
 KeyTab = 2
@@ -57,7 +53,7 @@ KeyLeftParen = 40    -- (
 KeyRightParen = 41   -- )
 KeyAsterisk = 42     -- *
 KeyPlus = 43         -- +
-KeyComma = 44        --
+KeyComma = 44        -- ,
 KeyMinus = 45        -- -
 KeyPeriod = 46       -- .
 KeySlash = 47        -- /

modules/core_scripts/core_scripts.otmod

@@ -7,10 +7,14 @@ Module
   onLoad: |
     require 'ext/table'
     require 'ext/string'
-    require 'constants'
+    require 'util/point'
+    require 'util/size'
+    require 'util/color'
+    require 'util/rect'
+    require 'const'
     require 'util'
     require 'dispatcher'
     require 'widget'
     require 'ui'
-    require 'gfx'
+    require 'effects'
     return true

modules/core_scripts/dispatcher.lua

@@ -1,43 +1,33 @@
 local eventId = 0
-local eventsTable = { }
+local eventList = {}
-local orig = { scheduleEvent = scheduleEvent,
-               addEvent = addEvent }
 
--- fix original scheduleEvent
 function scheduleEvent(func, delay)
   eventId = eventId + 1
   local id = eventId
   local function proxyFunc()
-    if eventsTable[id] then
+    if eventList[id] then
-      func()
+      if eventList[id].active then
-      eventsTable[id] = nil
+        func()
+      end
+      eventList[id] = nil
     end
   end
-  eventsTable[id] = proxyFunc
+  eventList[id] = { func = proxyFunc, active = true }
-  orig.scheduleEvent(proxyFunc, delay)
+  if delay and delay > 0 then
+    g_dispatcher.scheduleEvent(proxyFunc, delay)
+  else
+    g_dispatcher.addEvent(proxyFunc, false)
+  end
   return id
 end
 
--- FIXME: the event function can be collected
+function addEvent(func)
--- and the dispatcher would call an invalid function, generating an warning
+  return scheduleEvent(func, 0)
+end
+
 function removeEvent(id)
-  if id and eventsTable[id] then
+  if id and eventList[id] then
-    eventsTable[id] = nil
+    eventList[id].active = false
     return true
   end
 end
-
--- fix original addEvent
-function addEvent(func)
-  eventId = eventId + 1
-  local id = eventId
-  local function proxyFunc()
-    if eventsTable[id] then
-      func()
-      eventsTable[id] = nil
-    end
-  end
-  eventsTable[id] = proxyFunc
-  orig.addEvent(proxyFunc)
-  return id
-end

modules/core_scripts/effects.lua

@@ -1,6 +1,6 @@
-GFX = { }
+Effects = {}
 
-function GFX.fadeIn(widget, time, elapsed)
+function Effects.fadeIn(widget, time, elapsed)
     if not elapsed then elapsed = 0 end
     if not time then time = 250 end
     widget:setOpacity(math.min((255*elapsed)/time, 255))
@@ -11,7 +11,7 @@ function GFX.fadeIn(widget, time, elapsed)
     end
 end
 
-function GFX.fadeOut(widget, time, elapsed)
+function Effects.fadeOut(widget, time, elapsed)
     if not elapsed then elapsed = 0 end
     if not time then time = 250 end
     widget:setOpacity((255*(time - elapsed))/time)

modules/core_scripts/ext/string.lua

@@ -13,12 +13,12 @@ function string:starts(start)
   return self:sub(1, #start) == start
 end
 
-function string.trim(str)
+function string:trim()
-  return str:match'^%s*(.*%S)' or ''
+  return self:match('^%s*(.*%S)') or ''
 end
 
 function toboolean(str)
-  str = string.trim(str)
+  str = str:trim()
   if str == '1' or str == 'true' then
     return true
   end

modules/core_scripts/ext/table.lua

@@ -1,7 +1,7 @@
 function table.dump(t, depth)
   if not depth then depth = 0 end
   for k,v in pairs(t) do
-    str = string.rep(' ', depth * 2) .. k .. ': '
+    str = (' '):rep(depth * 2) .. k .. ': '
     if type(v) ~= "table" then
       print(str .. tostring(v))
     else

modules/core_scripts/util.lua

@@ -6,10 +6,8 @@ function print(...)
   Logger.log(LogInfo, msg)
 end
 
-function createEnvironment()
+function fatal(msg)
-  local env = { }
+  Logger.log(LogFatal, msg)
-  setmetatable(env, { __index = _G} )
-  return env
 end
 
 function connect(object, signalsAndSlots, pushFront)
@@ -28,10 +26,10 @@ function connect(object, signalsAndSlots, pushFront)
   end
 end
 
-function dumpWidgets()
+function createEnvironment()
-  for i=1,UI.root:getChildCount() do
+  local env = { }
-    print(UI.root:getChildByIndex(i):getId())
+  setmetatable(env, { __index = _G} )
-  end
+  return env
 end
 
 function getCallingScriptSourcePath(depth)

modules/core_scripts/widget.lua

@@ -16,4 +16,4 @@ function UIWidget:setMargin(...)
         self:setMarginBottom(params[3])
         self:setMarginLeft(params[4])
     end
-end
+end

modules/core_widgets/messagebox/messagebox.lua

@@ -28,7 +28,7 @@ function MessageBox.create(title, text, flags)
 
   if flags == MessageBoxOk then
     buttonRight:setText("Ok")
-    box.onOk = EmptyFunction
+    box.onOk = function() end
     buttonRight.onClick = function()
       box.onOk()
       box:destroy()
@@ -37,7 +37,7 @@ function MessageBox.create(title, text, flags)
     window.onEscape = buttonRight.onClick
   elseif flags == MessageBoxCancel then
     buttonRight:setText("Cancel")
-    box.onCancel = EmptyFunction
+    box.onCancel = function() end
     buttonRight.onClick = function()
       box.onCancel()
       box:destroy()

modules/core_widgets/tooltip/tooltip.lua

@@ -28,7 +28,7 @@ function ToolTip.display(text)
     local size = label:getSize()
     size.width = size.width + 4
     size.height = size.height + 4
-    currentToolTip:setSize(size)
+    currentToolTip:resize(size)
     moveToolTip(currentToolTip)
   end
 end

src/framework/CMakeLists.txt

@@ -135,6 +135,7 @@ SET(framework_SOURCES ${framework_SOURCES}
     ${CMAKE_CURRENT_LIST_DIR}/graphics/font.cpp
     ${CMAKE_CURRENT_LIST_DIR}/graphics/fontmanager.cpp
     ${CMAKE_CURRENT_LIST_DIR}/graphics/graphics.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/graphics/painter.cpp
     ${CMAKE_CURRENT_LIST_DIR}/graphics/texture.cpp
     ${CMAKE_CURRENT_LIST_DIR}/graphics/framebuffer.cpp
     ${CMAKE_CURRENT_LIST_DIR}/graphics/animatedtexture.cpp
@@ -142,6 +143,9 @@ SET(framework_SOURCES ${framework_SOURCES}
     ${CMAKE_CURRENT_LIST_DIR}/graphics/texturemanager.cpp
     ${CMAKE_CURRENT_LIST_DIR}/graphics/borderimage.cpp
     ${CMAKE_CURRENT_LIST_DIR}/graphics/image.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/graphics/shader.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/graphics/shaderprogram.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/graphics/paintershaderprogram.cpp
 
     # framework otml
     ${CMAKE_CURRENT_LIST_DIR}/otml/otmldocument.cpp

src/framework/application.cpp

@@ -31,7 +31,9 @@
 #include <framework/ui/uimanager.h>
 #include <framework/ui/uiwidget.h>
 #include <framework/graphics/graphics.h>
+#include <framework/graphics/painter.h>
 #include <framework/luascript/luainterface.h>
+#include <../../oglrenderer/graphics/painter.h>
 
 Application *g_app = nullptr;
 
@@ -134,7 +136,6 @@ void Application::terminate()
     // terminate graphics
     if(m_appFlags & Fw::AppEnableGraphics) {
         g_ui.terminate();
-        g_graphics.terminate();
         g_window.terminate();
     }
 
@@ -217,8 +218,8 @@ void Application::render()
 
 void Application::resize(const Size& size)
 {
-    g_graphics.resize(size);
     g_ui.resize(size);
+    g_graphics.resize(size);
 }
 
 void Application::inputEvent(const InputEvent& event)

src/framework/core/module.cpp

@@ -79,15 +79,13 @@ bool Module::load()
         }
     }
 
-    if(m_loadCallback) {
+    if(m_loadCallback && !m_loadCallback()) {
-        m_loaded = m_loadCallback();
+        logError("Unable to load module '", m_name, "' because its onLoad event returned false");
-        if(!m_loaded) {
+        return false;
-            logError("Unable to load module '", m_name, "' because its onLoad event returned false");
-            return false;
-        }
     }
 
     logInfo("Loaded module '", m_name, "'");
+    m_loaded = true;
     return true;
 }
 

src/framework/graphics/animatedtexture.cpp

@@ -29,7 +29,7 @@ AnimatedTexture::AnimatedTexture(int width, int height, int channels, int numFra
     Texture(),
     m_numFrames(numFrames)
 {
-    m_size.setSize(width, height);
+    m_size.resize(width, height);
 
     m_framesTextureId.resize(numFrames);
     m_framesDelay.resize(numFrames);

src/framework/graphics/borderimage.cpp

@@ -137,68 +137,63 @@ void BorderImage::draw(const Rect& screenCoords)
     Rect rectCoords;
     Size centerSize = screenCoords.size() - m_bordersSize;
 
-    g_graphics.bindTexture(m_texture);
-    g_graphics.startDrawing();
-
     // first the center
     if(centerSize.area() > 0) {
         rectCoords = Rect(screenCoords.left() + m_leftBorderTexCoords.width(),
                         screenCoords.top() + m_topBorderTexCoords.height(),
                         centerSize);
-        g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_centerTexCoords);
+        g_painter.drawRepeatedTexturedRect(rectCoords, m_texture, m_centerTexCoords);
     }
 
     // top left corner
     rectCoords = Rect(screenCoords.topLeft(),
                       m_topLeftCornerTexCoords.size());
-    g_graphics.drawTexturedRect(rectCoords, m_texture, m_topLeftCornerTexCoords);
+    g_painter.drawTexturedRect(rectCoords, m_texture, m_topLeftCornerTexCoords);
 
     // top
     rectCoords = Rect(screenCoords.left() + m_topLeftCornerTexCoords.width(),
                       screenCoords.topLeft().y,
                       centerSize.width(),
                       m_topBorderTexCoords.height());
-    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_topBorderTexCoords);
+    g_painter.drawRepeatedTexturedRect(rectCoords, m_texture, m_topBorderTexCoords);
 
 
     // top right corner
     rectCoords = Rect(screenCoords.left() + m_topLeftCornerTexCoords.width() + centerSize.width(),
                       screenCoords.top(),
                       m_topRightCornerTexCoords.size());
-    g_graphics.drawTexturedRect(rectCoords, m_texture, m_topRightCornerTexCoords);
+    g_painter.drawTexturedRect(rectCoords, m_texture, m_topRightCornerTexCoords);
 
     // left
     rectCoords = Rect(screenCoords.left(),
                       screenCoords.top() + m_topLeftCornerTexCoords.height(),
                       m_leftBorderTexCoords.width(),
                       centerSize.height());
-    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_leftBorderTexCoords);
+    g_painter.drawRepeatedTexturedRect(rectCoords, m_texture, m_leftBorderTexCoords);
 
     // right
     rectCoords = Rect(screenCoords.left() + m_leftBorderTexCoords.width() + centerSize.width(),
                       screenCoords.top() + m_topRightCornerTexCoords.height(),
                       m_rightBorderTexCoords.width(),
                       centerSize.height());
-    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_rightBorderTexCoords);
+    g_painter.drawRepeatedTexturedRect(rectCoords, m_texture, m_rightBorderTexCoords);
 
     // bottom left corner
     rectCoords = Rect(screenCoords.left(),
                       screenCoords.top() + m_topLeftCornerTexCoords.height() + centerSize.height(),
                       m_bottomLeftCornerTexCoords.size());
-    g_graphics.drawTexturedRect(rectCoords, m_texture, m_bottomLeftCornerTexCoords);
+    g_painter.drawTexturedRect(rectCoords, m_texture, m_bottomLeftCornerTexCoords);
 
     // bottom
     rectCoords = Rect(screenCoords.left() + m_bottomLeftCornerTexCoords.width(),
                       screenCoords.top() + m_topBorderTexCoords.height() + centerSize.height(),
                       centerSize.width(),
                       m_bottomBorderTexCoords.height());
-    g_graphics.drawRepeatedTexturedRect(rectCoords, m_texture, m_bottomBorderTexCoords);
+    g_painter.drawRepeatedTexturedRect(rectCoords, m_texture, m_bottomBorderTexCoords);
 
     // bottom right corner
     rectCoords = Rect(screenCoords.left() + m_bottomLeftCornerTexCoords.width() + centerSize.width(),
                       screenCoords.top() + m_topRightCornerTexCoords.height() + centerSize.height(),
                       m_bottomRightCornerTexCoords.size());
-    g_graphics.drawTexturedRect(rectCoords, m_texture, m_bottomRightCornerTexCoords);
+    g_painter.drawTexturedRect(rectCoords, m_texture, m_bottomRightCornerTexCoords);
-
-    g_graphics.stopDrawing();
 }

src/framework/graphics/declarations.h

@@ -32,6 +32,9 @@ class Font;
 class Image;
 class BorderImage;
 class FrameBuffer;
+class Shader;
+class ShaderProgram;
+class PainterShaderProgram;
 
 typedef std::weak_ptr<Texture> TextureWeakPtr;
 
@@ -41,5 +44,9 @@ typedef std::shared_ptr<Font> FontPtr;
 typedef std::shared_ptr<Image> ImagePtr;
 typedef std::shared_ptr<BorderImage> BorderImagePtr;
 typedef std::shared_ptr<FrameBuffer> FrameBufferPtr;
+typedef std::shared_ptr<Shader> ShaderPtr;
+typedef std::shared_ptr<ShaderProgram> ShaderProgramPtr;
+typedef std::shared_ptr<PainterShaderProgram> PainterShaderProgramPtr;
+typedef std::vector<ShaderPtr> ShaderList;
 
 #endif

src/framework/graphics/font.cpp

@@ -64,7 +64,7 @@ void Font::renderText(const std::string& text,
                       const Point& startPos,
                       const Color& color)
 {
-    Size boxSize = g_graphics.getScreenSize() - startPos.toSize();
+    Size boxSize = g_graphics.getViewportSize() - startPos.toSize();
     Rect screenCoords(startPos, boxSize);
     renderText(text, screenCoords, Fw::AlignTopLeft, color);
 }
@@ -85,9 +85,7 @@ void Font::renderText(const std::string& text,
     Size textBoxSize;
     const std::vector<Point>& glyphsPositions = calculateGlyphsPositions(text, align, &textBoxSize);
 
-    g_graphics.bindColor(color);
+    g_painter.setColor(color);
-    g_graphics.bindTexture(m_texture);
-    g_graphics.startDrawing();
 
     for(int i = 0; i < textLenght; ++i) {
         int glyph = (uchar)text[i];
@@ -149,10 +147,8 @@ void Font::renderText(const std::string& text,
         }
 
         // render glyph
-        g_graphics.drawTexturedRect(glyphScreenCoords, m_texture, glyphTextureCoords);
+        g_painter.drawTexturedRect(glyphScreenCoords, m_texture, glyphTextureCoords);
     }
-
-    g_graphics.stopDrawing();
 }
 
 const std::vector<Point>& Font::calculateGlyphsPositions(const std::string& text,
@@ -172,7 +168,7 @@ const std::vector<Point>& Font::calculateGlyphsPositions(const std::string& text
     // return if there is no text
     if(textLength == 0) {
         if(textBoxSize)
-            textBoxSize->setSize(0,m_glyphHeight);
+            textBoxSize->resize(0,m_glyphHeight);
         return glyphsPositions;
     }
 
@@ -280,6 +276,6 @@ void Font::calculateGlyphsWidthsAutomatically(const Size& glyphSize)
             lastColumnFilledPixels = columnFilledPixels;
         }
         // store glyph size
-        m_glyphsSize[glyph].setSize(width, m_glyphHeight);
+        m_glyphsSize[glyph].resize(width, m_glyphHeight);
     }
 }

src/framework/graphics/framebuffer.cpp

@@ -26,110 +26,52 @@
 
 FrameBuffer::FrameBuffer(int width, int height)
 {
-    m_fbo = 0;
-
     // create FBO texture
     m_texture = TexturePtr(new Texture(width, height, 4));
     m_texture->enableBilinearFilter();
 
-    // use FBO ext only if supported
+    // generate FBO
-    if(g_graphics.isExtensionSupported("GL_ARB_framebuffer_object")) {
+    glGenFramebuffers(1, &m_fbo);
-        m_fallbackOldImp = false;
+    if(!m_fbo)
+        logFatal("Unable to create framebuffer object");
 
-        // generate FBO
+    glBindFramebuffer(GL_FRAMEBUFFER, m_fbo);
-        glGenFramebuffers(1, &m_fbo);
-        glBindFramebuffer(GL_FRAMEBUFFER_EXT, m_fbo);
 
-        // attach 2D texture to this FBO
+    // attach 2D texture to this FBO
-        glFramebufferTexture2D(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, m_texture->getId(), 0);
+    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_texture->getId(), 0);
 
-        GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER_EXT);
+    GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
-        switch(status) {
+    if(status != GL_FRAMEBUFFER_COMPLETE)
-            case GL_FRAMEBUFFER_COMPLETE_EXT:
+        logFatal("Unable to create framebuffer object");
-                //ok
-                break;
-            default: // fallback to old implementation
-                m_fallbackOldImp = true;
-                break;
-        }
 
-        // restore back buffer
+    // restore back buffer
-        glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
+    glBindFramebuffer(GL_FRAMEBUFFER, 0);
-        glDrawBuffer(GL_BACK);
-        glReadBuffer(GL_BACK);
-    } else {
-        // otherwise fallback to copy texture from screen implementation
-        m_fallbackOldImp = true;
-    }
-
-    if(m_fallbackOldImp)
-        logInfo("Framebuffers not supported, falling back to old implementation.");
 }
 
 FrameBuffer::~FrameBuffer()
 {
-    if(m_fbo)
+    glDeleteFramebuffers(1, &m_fbo);
-        glDeleteFramebuffers(1, &m_fbo);
 }
 
 void FrameBuffer::bind()
 {
-    if(!m_fallbackOldImp) {
+    glBindFramebuffer(GL_FRAMEBUFFER, m_fbo);
-        // bind framebuffer
-        glBindFramebuffer(GL_FRAMEBUFFER_EXT, m_fbo);
-    } else {
-        int screenWidth = g_graphics.getScreenSize().width();
-        int screenHeight = g_graphics.getScreenSize().height();
-
-        if(!m_screenBackup || m_screenBackup->getSize() != g_graphics.getScreenSize())
-            m_screenBackup = TexturePtr(new Texture(screenWidth, screenHeight, 4));
-
-        // save screen state
-        glBindTexture(GL_TEXTURE_2D, m_screenBackup->getId());
-        glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, screenWidth, screenHeight);
-    }
-
-    // setup framebuffer viewport
-    glViewport(0, 0, m_texture->getWidth(), m_texture->getHeight());
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    glOrtho(0.0f, m_texture->getWidth(), m_texture->getHeight(), 0, -1, 1);
-
-    // back to model view
-    glMatrixMode(GL_MODELVIEW);
-    glLoadIdentity();
-
-    // clear framebuffer
-    glClearColor(0.0, 0.0, 0.0, 1.0);
     glClear(GL_COLOR_BUFFER_BIT);
+    glViewport(0, 0, m_texture->getWidth(), m_texture->getHeight());
+    g_painter.updateProjectionMatrix(m_texture->getSize(), true);
 }
 
-void FrameBuffer::unbind()
+void FrameBuffer::release()
 {
-    if(!m_fallbackOldImp) {
+    // bind back buffer again
-        // bind back buffer again
+    glBindFramebuffer(GL_FRAMEBUFFER, 0);
-        glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
-        glDrawBuffer(GL_BACK);
-        glReadBuffer(GL_BACK);
 
-        // restore graphics viewport
+    // restore graphics viewport
-        g_graphics.restoreViewport();
+    glViewport(0, 0, g_graphics.getViewportSize().width(), g_graphics.getViewportSize().height());
-    } else {
+    g_painter.updateProjectionMatrix(g_graphics.getViewportSize());
-        // copy screen to texture
-        glBindTexture(GL_TEXTURE_2D, m_texture->getId());
-        glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, m_texture->getWidth(), m_texture->getHeight());
-
-        // restore graphics viewport
-        g_graphics.restoreViewport();
-
-        // restore screen
-        glClearColor(0.0, 0.0, 0.0, 1.0);
-        glClear(GL_COLOR_BUFFER_BIT);
-        g_graphics.drawTexturedRect(Rect(Point(0,0), g_graphics.getScreenSize()), m_screenBackup, Rect(), true);
-    }
 }
 
-void FrameBuffer::draw(const Rect& screenCoords, const Rect& framebufferCoords)
+void FrameBuffer::draw(const Rect& dest)
 {
-    g_graphics.drawTexturedRect(screenCoords, m_texture, framebufferCoords, true);
+    g_painter.drawTexturedRect(dest, m_texture);
 }

src/framework/graphics/framebuffer.h

@@ -32,8 +32,8 @@ public:
     virtual ~FrameBuffer();
 
     void bind();
-    void unbind();
+    void release();
-    void draw(const Rect& screenCoords, const Rect& framebufferCoords = Rect());
+    void draw(const Rect& dest);
 
     TexturePtr getTexture() { return m_texture; }
 

src/framework/graphics/graphics.cpp

@@ -30,307 +30,48 @@ Graphics g_graphics;
 void Graphics::init()
 {
     // setup opengl
-    glEnable(GL_ALPHA_TEST); // enable alpha by default
-    glAlphaFunc(GL_GREATER, 0.0f); // default alpha func
-    glDisable(GL_DEPTH_TEST); // we are rendering 2D only, we don't need depth buffer
-    glEnable(GL_TEXTURE_2D); // enable textures by default
-    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
-    glShadeModel(GL_SMOOTH);
     glEnable(GL_BLEND);
-    glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
 
     logInfo("GPU ", glGetString(GL_RENDERER));
     logInfo("OpenGL ", glGetString(GL_VERSION));
 
-    m_drawing = false;
+    //if(!isExtensionSupported("GL_ARB_framebuffer_object"))
-    m_opacity = 255;
+    //    logFatal("Your graphics card is not supported.");
+
     m_emptyTexture = TexturePtr(new Texture);
 
-    bindColor(Fw::white);
+    g_painter.init();
-    bindBlendFunc(Fw::BlendDefault);
 }
 
 void Graphics::terminate()
 {
     g_fonts.releaseFonts();
+    g_painter.terminate();
     m_emptyTexture.reset();
 }
 
 bool Graphics::isExtensionSupported(const char *extension)
 {
-    const GLubyte *extensions = NULL;
+    std::string extensionsString = (const char*)glGetString(GL_EXTENSIONS);
-    const GLubyte *start;
+    auto extensions = Fw::split(extensionsString);
-    GLubyte *where, *terminator;
+    return std::find(extensions.begin(), extensions.end(), extension) != extensions.end();
-    where = (GLubyte *)strchr(extension, ' ');
-
-    if(where || *extension == '\0')
-        return 0;
-
-    extensions = glGetString(GL_EXTENSIONS);
-
-    start = extensions;
-    while(true) {
-        where = (GLubyte *) strstr((const char *)start, extension);
-        if(!where)
-            break;
-
-        terminator = where + strlen(extension);
-
-        if(where == start || *(where - 1) == ' ')
-            if(*terminator == ' ' || *terminator == '\0')
-                return 1;
-
-        start = terminator;
-    }
-    return 0;
 }
 
 void Graphics::resize(const Size& size)
 {
-    m_screenSize = size;
+    glViewport(0, 0, size.width(), size.height());
-    restoreViewport();
+    g_painter.updateProjectionMatrix(size);
-}
+    m_viewportSize = size;
-
-void Graphics::restoreViewport()
-{
-    const int& width = m_screenSize.width();
-    const int& height = m_screenSize.height();
-
-    // resize gl viewport
-    glViewport(0, 0, width, height);
-
-    /*
-     0,0---------0,w
-     |           |
-     |           |
-     |           |
-     h,0---------h,w
-     */
-    // setup view region like above
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    glOrtho(0.0f, width, height, 0.0f, -1, 1);
-
-    // back to model view
-    glMatrixMode(GL_MODELVIEW);
-    glLoadIdentity();
 }
 
 void Graphics::beginRender()
 {
     glClear(GL_COLOR_BUFFER_BIT);
-    glLoadIdentity();
 }
 
 void Graphics::endRender()
 {
-    assert(!m_drawing);
+    glFlush();
-}
-
-void Graphics::drawTexturedRect(const Rect& screenCoords,
-                                const TexturePtr& texture,
-                                const Rect& textureCoords,
-                                bool upsideDown)
-{
-    if(screenCoords.isEmpty() || texture->getId() == 0)
-        return;
-
-    // rect correction for opengl
-    int right = screenCoords.right() + 1;
-    int bottom = screenCoords.bottom() + 1;
-    int top = screenCoords.top();
-    int left = screenCoords.left();
-
-    float textureRight;
-    float textureBottom;
-    float textureTop;
-    float textureLeft;
-    const Size& textureSize = texture->getGlSize();
-
-    if(textureCoords.isEmpty()) {
-        textureRight = texture->getWidth() / (float)textureSize.width();
-        if(upsideDown) {
-            textureBottom = 0.0f;
-            textureTop = texture->getHeight()  / (float)textureSize.height();
-        } else {
-            textureBottom = texture->getHeight()  / (float)textureSize.height();
-            textureTop = 0.0f;
-        }
-        textureLeft = 0.0f;
-    } else {
-        textureRight = (textureCoords.right() + 1) / (float)textureSize.width();
-        if(upsideDown) {
-            textureTop = (textureCoords.bottom() + 1) / (float)textureSize.height();
-            textureBottom = textureCoords.top() / (float)textureSize.height();
-        } else {
-            textureBottom = (textureCoords.bottom() + 1) / (float)textureSize.height();
-            textureTop = textureCoords.top() / (float)textureSize.height();
-        }
-        textureLeft = textureCoords.left() / (float)textureSize.width();
-    }
-
-    if(!m_drawing) {
-        bindTexture(texture);
-        glBegin(GL_QUADS);
-    }
-
-    glTexCoord2f(textureLeft,  textureTop);    glVertex2i(left,  top);
-    glTexCoord2f(textureLeft,  textureBottom); glVertex2i(left,  bottom);
-    glTexCoord2f(textureRight, textureBottom); glVertex2i(right, bottom);
-    glTexCoord2f(textureRight, textureTop);    glVertex2i(right, top);
-
-    if(!m_drawing)
-        glEnd();
-}
-
-void Graphics::drawRepeatedTexturedRect(const Rect& screenCoords,
-                                        const TexturePtr& texture,
-                                        const Rect& textureCoords)
-{
-    if(screenCoords.isEmpty() || texture->getId() == 0 || textureCoords.isEmpty())
-        return;
-
-    bool mustStopDrawing = false;
-    if(!m_drawing) {
-        bindTexture(texture);
-        startDrawing();
-        mustStopDrawing = true;
-    }
-
-    // render many repeated texture rects
-    Rect virtualScreenCoords(0,0,screenCoords.size());
-    for(int y = 0; y <= virtualScreenCoords.height(); y += textureCoords.height()) {
-        for(int x = 0; x <= virtualScreenCoords.width(); x += textureCoords.width()) {
-            Rect partialCoords(x, y, textureCoords.size());
-            Rect partialTextureCoords = textureCoords;
-
-            // partialCoords to screenCoords bottomRight
-            if(partialCoords.bottom() > virtualScreenCoords.bottom()) {
-                partialTextureCoords.setBottom(partialTextureCoords.bottom() +
-                                               (virtualScreenCoords.bottom() - partialCoords.bottom()));
-                partialCoords.setBottom(virtualScreenCoords.bottom());
-            }
-            if(partialCoords.right() > virtualScreenCoords.right()) {
-                partialTextureCoords.setRight(partialTextureCoords.right() +
-                                              (virtualScreenCoords.right() - partialCoords.right()));
-                partialCoords.setRight(virtualScreenCoords.right());
-            }
-
-            partialCoords.translate(screenCoords.topLeft());
-            drawTexturedRect(partialCoords, texture, partialTextureCoords);
-        }
-    }
-
-    if(mustStopDrawing)
-        stopDrawing();
-}
-
-void Graphics::drawFilledRect(const Rect& screenCoords)
-{
-    assert(!m_drawing);
-
-    if(screenCoords.isEmpty())
-        return;
-
-    // rect correction for opengl
-    int right = screenCoords.right() + 1;
-    int bottom = screenCoords.bottom() + 1;
-    int top = screenCoords.top();
-    int left = screenCoords.left();
-
-    glDisable(GL_TEXTURE_2D);
-    glBegin(GL_QUADS);
-
-    glVertex2i(left,  top);
-    glVertex2i(left,  bottom);
-    glVertex2i(right, bottom);
-    glVertex2i(right, top);
-
-    glEnd();
-    glEnable(GL_TEXTURE_2D);
-}
-
-
-void Graphics::drawBoundingRect(const Rect& screenCoords,
-                                int innerLineWidth)
-{
-    assert(!m_drawing);
-
-    if(screenCoords.isEmpty() || 2 * innerLineWidth > screenCoords.height())
-        return;
-
-    // rect correction for opengl
-    int right = screenCoords.right()+1;
-    int bottom = screenCoords.bottom()+1;
-    int top = screenCoords.top();
-    int left = screenCoords.left();
-
-    glDisable(GL_TEXTURE_2D);
-    glBegin(GL_QUADS);
-
-    // top line
-    glVertex2i(left,  top);
-    glVertex2i(left,  top + innerLineWidth);
-    glVertex2i(right, top + innerLineWidth);
-    glVertex2i(right, top);
-
-    // left
-    glVertex2i(left, screenCoords.top() + innerLineWidth);
-    glVertex2i(left, bottom - innerLineWidth);
-    glVertex2i(left + innerLineWidth, bottom - innerLineWidth);
-    glVertex2i(left + innerLineWidth, screenCoords.top() + innerLineWidth);
-
-    // bottom line
-    glVertex2i(left,  bottom);
-    glVertex2i(left,  bottom - innerLineWidth);
-    glVertex2i(right, bottom - innerLineWidth);
-    glVertex2i(right, bottom);
-
-    // right line
-    glVertex2i(right                 , top + innerLineWidth);
-    glVertex2i(right                 , bottom - innerLineWidth);
-    glVertex2i(right - innerLineWidth, bottom - innerLineWidth);
-    glVertex2i(right - innerLineWidth, top + innerLineWidth);
-
-    glEnd();
-    glEnable(GL_TEXTURE_2D);
-}
-
-void Graphics::bindColor(const Color& color)
-{
-    Color tmp = color;
-    tmp.setAlpha(std::min((uint8)m_opacity, color.a()));
-    glColor4ubv(tmp.rgbaPtr());
-}
-
-void Graphics::bindTexture(const TexturePtr& texture)
-{
-    glBindTexture(GL_TEXTURE_2D, texture->getId());
-}
-
-void Graphics::bindBlendFunc(Fw::BlendFunc blendType)
-{
-    switch(blendType) {
-        case Fw::BlendDefault:
-            glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-            break;
-        case Fw::BlendColorzing:
-            glBlendFunc(GL_DST_COLOR, GL_ONE_MINUS_SRC_ALPHA);
-            break;
-    }
-}
-
-void Graphics::startDrawing()
-{
-    assert(!m_drawing);
-    glBegin(GL_QUADS);
-    m_drawing = true;
-}
-
-void Graphics::stopDrawing()
-{
-    assert(m_drawing);
-    glEnd();
-    m_drawing = false;
 }
 

src/framework/graphics/graphics.h

@@ -24,64 +24,25 @@
 #define GRAPHICS_H
 
 #include "declarations.h"
+#include "painter.h"
 
 class Graphics
 {
 public:
-    /// Initialize default OpenGL states
     void init();
-
-    /// Termiante graphics
     void terminate();
 
-    /// Check if a GL extension is supported
     bool isExtensionSupported(const char *extension);
 
-    /// Resizes OpenGL viewport
     void resize(const Size& size);
-
-    /// Restore original viewport
-    void restoreViewport();
-
-    /// Called before every render
     void beginRender();
-
-    /// Called after every render
     void endRender();
 
-    void bindColor(const Color& color);
+    const Size& getViewportSize() const { return m_viewportSize; }
-    void bindTexture(const TexturePtr& texture);
-    void bindBlendFunc(Fw::BlendFunc blendType);
-
-    // drawing API
-    void drawTexturedRect(const Rect& screenCoords,
-                          const TexturePtr& texture,
-                          const Rect& textureCoords = Rect(),
-                          bool upsideDown = false);
-
-    void drawRepeatedTexturedRect(const Rect& screenCoords,
-                                  const TexturePtr& texture,
-                                  const Rect& textureCoords);
-
-    void drawFilledRect(const Rect& screenCoords);
-
-    void drawBoundingRect(const Rect& screenCoords,
-                          int innerLineWidth = 1);
-
-    const Size& getScreenSize() const { return m_screenSize; }
-
-    void startDrawing();
-    void stopDrawing();
-    bool isDrawing() const { return m_drawing; }
-
-    int getOpacity() const { return m_opacity; }
-    void setOpacity(int opacity) { m_opacity = opacity; }
     TexturePtr getEmptyTexture() { return m_emptyTexture; }
 
 private:
-    bool m_drawing;
+    Size m_viewportSize;
-    int m_opacity;
-    Size m_screenSize;
     TexturePtr m_emptyTexture;
 };
 

src/framework/graphics/image.cpp

@@ -63,12 +63,12 @@ void Image::draw(const Rect& screenCoords)
             else if(texSize.width() > texCoordsSize.width())
                 texCoordsOffset.x = (texSize.width() - texCoordsSize.width())/2;
 
-            g_graphics.drawTexturedRect(screenCoords, m_texture, Rect(texCoordsOffset, texCoordsSize));
+            g_painter.drawTexturedRect(screenCoords, m_texture, Rect(texCoordsOffset, texCoordsSize));
         } else {
             if(m_repeated)
-                g_graphics.drawRepeatedTexturedRect(screenCoords, m_texture, m_textureCoords);
+                g_painter.drawRepeatedTexturedRect(screenCoords, m_texture, m_textureCoords);
             else
-                g_graphics.drawTexturedRect(screenCoords, m_texture, m_textureCoords);
+                g_painter.drawTexturedRect(screenCoords, m_texture, m_textureCoords);
         }
     }
 }

src/framework/graphics/painter.cpp

@@ -0,0 +1,228 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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 "painter.h"
+#include "texture.h"
+#include "paintershadersources.h"
+#include "paintershaderprogram.h"
+#include "shaderprogram.h"
+#include "graphics.h"
+
+Painter g_painter;
+
+void Painter::init()
+{
+    setColor(Fw::white);
+    setOpacity(255);
+    setCompositionMode(CompositionMode_SourceOver);
+
+    PainterShaderProgramPtr program = PainterShaderProgramPtr(new PainterShaderProgram);
+    program->addShaderFromSourceCode(Shader::Vertex, glslMainWithTexCoordsVertexShader);
+    program->addShaderFromSourceCode(Shader::Vertex, glslPositionOnlyVertexShader);
+    program->addShaderFromSourceCode(Shader::Fragment, glslMainFragmentShader);
+    program->addShaderFromSourceCode(Shader::Fragment, glslTextureSrcFragmentShader);
+    program->bindAttributeLocation(VERTEX_COORDS_ATTR, "vertexCoord");
+    program->bindAttributeLocation(TEXTURE_COORDS_ATTR, "textureCoord");
+    assert(program->link());
+    program->bindUniformLocation(PainterShaderProgram::PROJECTION_MATRIX_UNIFORM, "projectionMatrix");
+    program->bindUniformLocation(PainterShaderProgram::TEXTURE_TRANSFORM_MATRIX_UNIFORM, "textureTransformMatrix");
+    program->bindUniformLocation(PainterShaderProgram::COLOR_UNIFORM, "color");
+    program->bindUniformLocation(PainterShaderProgram::OPACITY_UNIFORM, "opacity");
+    program->bindUniformLocation(PainterShaderProgram::TEXTURE_UNIFORM, "texture");
+    m_drawTexturedProgram = program;
+
+    program = PainterShaderProgramPtr(new PainterShaderProgram);
+    program->addShaderFromSourceCode(Shader::Vertex, glslMainVertexShader);
+    program->addShaderFromSourceCode(Shader::Vertex, glslPositionOnlyVertexShader);
+    program->addShaderFromSourceCode(Shader::Fragment, glslMainFragmentShader);
+    program->addShaderFromSourceCode(Shader::Fragment, glslSolidColorFragmentShader);
+    program->bindAttributeLocation(VERTEX_COORDS_ATTR, "vertexCoord");
+    assert(program->link());
+    program->bindUniformLocation(PainterShaderProgram::PROJECTION_MATRIX_UNIFORM, "projectionMatrix");
+    program->bindUniformLocation(PainterShaderProgram::COLOR_UNIFORM, "color");
+    program->bindUniformLocation(PainterShaderProgram::OPACITY_UNIFORM, "opacity");
+    m_drawSolidColorProgram = program;
+}
+
+void Painter::terminate()
+{
+    m_drawTexturedProgram.reset();
+    m_drawSolidColorProgram.reset();
+}
+
+void Painter::updateProjectionMatrix(const Size& viewportSize, bool inverseYAxis)
+{
+    // The projection matrix converts from Painter's coordinate system to GL's coordinate system
+    //    * GL's viewport is 2x2, Painter's is width x height
+    //    * GL has +y -> -y going from bottom -> top, Painter is the other way round
+    //    * GL has [0,0] in the center, Painter has it in the top-left
+    //
+    // This results in the Projection matrix below, which is multiplied by the painter's
+    // transformation matrix, as shown below:
+    //
+    //                Projection Matrix                   Painter Coord   GL Coord
+    // ------------------------------------------------     ---------     ---------
+    // | 2.0 / width  |      0.0      |     -1.0      |     |   x   |     |   y'  |
+    // |     0.0      | -2.0 / height |      1.0      |  *  |   y   |  =  |   x'  |
+    // |     0.0      |      0.0      |      0.0      |     |   1   |     |   0   |
+    // ------------------------------------------------     ---------     ---------
+    float w = viewportSize.width();
+    float h = viewportSize.height();
+    if(inverseYAxis) {
+        m_projectionMatrix[0][0] = 2.0f/w;  m_projectionMatrix[0][1] = 0.0f;    m_projectionMatrix[0][2] =-1.0f;
+        m_projectionMatrix[1][0] = 0.0f;    m_projectionMatrix[1][1] = 2.0f/h;  m_projectionMatrix[1][2] =-1.0f;
+        m_projectionMatrix[2][0] = 0.0f;    m_projectionMatrix[2][1] = 0.0f;    m_projectionMatrix[2][2] = 0.0f;
+    } else {
+        m_projectionMatrix[0][0] = 2.0f/w;  m_projectionMatrix[0][1] = 0.0f;    m_projectionMatrix[0][2] =-1.0f;
+        m_projectionMatrix[1][0] = 0.0f;    m_projectionMatrix[1][1] =-2.0f/h;  m_projectionMatrix[1][2] = 1.0f;
+        m_projectionMatrix[2][0] = 0.0f;    m_projectionMatrix[2][1] = 0.0f;    m_projectionMatrix[2][2] = 0.0f;
+    }
+}
+
+void Painter::drawTexturedRect(const Rect& dest, const TexturePtr& texture)
+{
+    drawTexturedRect(dest, texture, Rect(Point(0,0), texture->getSize()));
+}
+
+void Painter::drawTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src)
+{
+    if(dest.isEmpty() || src.isEmpty() || !texture->getId())
+        return;
+
+    GLfloat vertexCoords[] = { (float)dest.left(), (float)dest.top(),
+                               (float)dest.right()+1, (float)dest.top(),
+                               (float)dest.left(), (float)dest.bottom()+1,
+                               (float)dest.right()+1, (float)dest.bottom()+1 };
+
+    GLfloat textureCoords[] = { (float)src.left(), (float)src.top(),
+                                (float)src.right()+1, (float)src.top(),
+                                (float)src.left(), (float)src.bottom()+1,
+                                (float)src.right()+1, (float)src.bottom()+1 };
+
+    m_drawTexturedProgram->prepareForDraw();
+    m_drawTexturedProgram->setProjectionMatrix(m_projectionMatrix);
+    m_drawTexturedProgram->setOpacity(m_currentOpacity);
+    m_drawTexturedProgram->setColor(m_currentColor);
+    m_drawTexturedProgram->setTexture(texture);
+    m_drawTexturedProgram->setVertexCoords(vertexCoords);
+    m_drawTexturedProgram->setTextureCoords(textureCoords);
+    m_drawTexturedProgram->drawTriangleStrip(4);
+    m_drawTexturedProgram->releaseFromDraw();
+}
+
+void Painter::drawRepeatedTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src)
+{
+    if(dest.isEmpty() || src.isEmpty() || !texture->getId())
+        return;
+
+    //TODO: use vertex arrays..
+    Rect virtualDest(0, 0, dest.size());
+    for(int y = 0; y <= virtualDest.height(); y += src.height()) {
+        for(int x = 0; x <= virtualDest.width(); x += src.width()) {
+            Rect partialDest(x, y, src.size());
+            Rect partialSrc = src;
+
+            // partialCoords to screenCoords bottomRight
+            if(partialDest.bottom() > virtualDest.bottom()) {
+                partialSrc.setBottom(partialSrc.bottom() + (virtualDest.bottom() - partialDest.bottom()));
+                partialDest.setBottom(virtualDest.bottom());
+            }
+            if(partialDest.right() > virtualDest.right()) {
+                partialSrc.setRight(partialSrc.right() + (virtualDest.right() - partialDest.right()));
+                partialDest.setRight(virtualDest.right());
+            }
+
+            partialDest.translate(dest.topLeft());
+            drawTexturedRect(partialDest, texture, partialSrc);
+        }
+    }
+}
+
+void Painter::drawFilledRect(const Rect& dest)
+{
+    if(dest.isEmpty())
+        return;
+
+    GLfloat right = dest.right()+1;
+    GLfloat bottom = dest.bottom()+1;
+    GLfloat top = dest.top();
+    GLfloat left = dest.left();
+
+    GLfloat vertexCoords[] = { left, top,
+                               right, top,
+                               left, bottom,
+                               right, bottom };
+
+    m_drawSolidColorProgram->prepareForDraw();
+    m_drawSolidColorProgram->setProjectionMatrix(m_projectionMatrix);
+    m_drawSolidColorProgram->setOpacity(m_currentOpacity);
+    m_drawSolidColorProgram->setColor(m_currentColor);
+    m_drawSolidColorProgram->setVertexCoords(vertexCoords);
+    m_drawSolidColorProgram->drawTriangleStrip(4);
+    m_drawSolidColorProgram->releaseFromDraw();
+}
+
+void Painter::drawBoundingRect(const Rect& dest, int innerLineWidth)
+{
+    if(dest.isEmpty() || innerLineWidth == 0)
+        return;
+
+    GLfloat right = dest.right()+1;
+    GLfloat bottom = dest.bottom()+1;
+    GLfloat top = dest.top();
+    GLfloat left = dest.left();
+    GLfloat w = innerLineWidth;
+
+    GLfloat vertexCoords[] = { left, top,
+                               right, top,
+                               left, top+w,
+                               right, top+w,
+                               right-w, top+w,
+                               right, bottom,
+                               right-w, bottom,
+                               right-w, bottom-w,
+                               left, bottom,
+                               left, bottom-w,
+                               left+w, bottom-w,
+                               left, top+w,
+                               left+w, top+w };
+
+    m_drawSolidColorProgram->prepareForDraw();
+    m_drawSolidColorProgram->setProjectionMatrix(m_projectionMatrix);
+    m_drawSolidColorProgram->setOpacity(m_currentOpacity);
+    m_drawSolidColorProgram->setColor(m_currentColor);
+    m_drawSolidColorProgram->setVertexCoords(vertexCoords);
+    m_drawSolidColorProgram->drawTriangleStrip(13);
+    m_drawSolidColorProgram->releaseFromDraw();
+}
+
+void Painter::setCompositionMode(Painter::CompositionMode compositionMode)
+{
+    switch(compositionMode) {
+    case CompositionMode_SourceOver:
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+        break;
+    case CompositionMode_ColorizeDest:
+        glBlendFunc(GL_DST_COLOR, GL_ONE_MINUS_SRC_ALPHA);
+        break;
+    }
+}

src/framework/graphics/painter.h

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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.
+ */
+
+#ifndef PAINTER_H
+#define PAINTER_H
+
+#include "declarations.h"
+
+class Painter
+{
+public:
+    enum CompositionMode {
+        CompositionMode_SourceOver,
+        CompositionMode_ColorizeDest
+    };
+
+    void init();
+    void terminate();
+
+    void updateProjectionMatrix(const Size& viewportSize, bool inverseYAxis = false);
+    void drawTexturedRect(const Rect& dest, const TexturePtr& texture);
+    void drawTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src);
+    void drawRepeatedTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src);
+    void drawFilledRect(const Rect& dest);
+    void drawBoundingRect(const Rect& dest, int innerLineWidth = 1);
+
+    void setColor(const Color& color) { m_currentColor = color; }
+    Color getColor() { return m_currentColor; }
+
+    void setOpacity(int opacity) { m_currentOpacity = opacity / 255.0f; }
+    int getOpacity() { return m_currentOpacity * 255.0f; }
+
+    void setCompositionMode(CompositionMode compositionMode);
+
+private:
+    PainterShaderProgramPtr m_drawTexturedProgram;
+    PainterShaderProgramPtr m_drawSolidColorProgram;
+    GLfloat m_projectionMatrix[3][3];
+    Color m_currentColor;
+    GLfloat m_currentOpacity;
+};
+
+extern Painter g_painter;
+
+#endif

src/framework/graphics/paintershaderprogram.cpp

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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 "paintershaderprogram.h"
+#include "painter.h"
+#include "texture.h"
+#include "texturemanager.h"
+
+void PainterShaderProgram::setProjectionMatrix(float projectionMatrix[3][3])
+{
+    setUniformValue(PROJECTION_MATRIX_UNIFORM, projectionMatrix, true);
+}
+
+void PainterShaderProgram::setColor(const Color& color)
+{
+    setUniformValue(COLOR_UNIFORM,
+                    color.r() / 255.0f,
+                    color.g() / 255.0f,
+                    color.b() / 255.0f,
+                    color.a() / 255.0f);
+}
+
+void PainterShaderProgram::setOpacity(GLfloat opacity)
+{
+    setUniformValue(OPACITY_UNIFORM, opacity);
+}
+
+void PainterShaderProgram::setTexture(const TexturePtr& texture)
+{
+    float w = texture->getGlSize().width();
+    float h = texture->getGlSize().height();
+
+    GLfloat textureTransformMatrix[2][2] = {
+        { 1.0f/w,  0.0f   },
+        { 0.0f,    1.0f/h }
+    };
+
+    glActiveTexture(GL_TEXTURE0);
+    glBindTexture(GL_TEXTURE_2D, texture->getId());
+    setUniformValue(TEXTURE_UNIFORM, 0);
+    setUniformValue(TEXTURE_TRANSFORM_MATRIX_UNIFORM, textureTransformMatrix, true);
+}
+
+void PainterShaderProgram::setVertexCoords(const GLfloat *vertices)
+{
+    enableAttributeArray(PainterShaderProgram::VERTEX_COORDS_ATTR);
+    setAttributeArray(PainterShaderProgram::VERTEX_COORDS_ATTR, vertices, 2);
+}
+
+void PainterShaderProgram::setTextureCoords(const GLfloat *textureCoords)
+{
+    enableAttributeArray(PainterShaderProgram::TEXTURE_COORDS_ATTR);
+    setAttributeArray(PainterShaderProgram::TEXTURE_COORDS_ATTR, textureCoords, 2);
+    m_mustDisableTexCoordsArray = true;
+}
+
+void PainterShaderProgram::prepareForDraw()
+{
+    assert(bind());
+}
+
+void PainterShaderProgram::drawTriangleStrip(int numVertices)
+{
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, numVertices);
+}
+
+void PainterShaderProgram::releaseFromDraw()
+{
+    if(m_mustDisableTexCoordsArray) {
+        disableAttributeArray(PainterShaderProgram::TEXTURE_COORDS_ATTR);
+        m_mustDisableTexCoordsArray = false;
+    }
+
+    if(m_mustDisableVertexArray) {
+        disableAttributeArray(PainterShaderProgram::VERTEX_COORDS_ATTR);
+        m_mustDisableVertexArray = false;
+    }
+
+    //release();
+}

src/framework/graphics/paintershaderprogram.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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.
+ */
+
+#ifndef PAINTERSHADER_H
+#define PAINTERSHADER_H
+
+#include "shaderprogram.h"
+
+class PainterShaderProgram : public ShaderProgram
+{
+public:
+    enum {
+        VERTEX_COORDS_ATTR = 0,
+        TEXTURE_COORDS_ATTR = 1,
+        PROJECTION_MATRIX_UNIFORM = 0,
+        TEXTURE_TRANSFORM_MATRIX_UNIFORM = 1,
+        COLOR_UNIFORM = 2,
+        OPACITY_UNIFORM = 3,
+        TEXTURE_UNIFORM = 4
+    };
+
+    void setProjectionMatrix(GLfloat projectionMatrix[3][3]);
+    void setColor(const Color& color);
+    void setOpacity(GLfloat opacity);
+    void setTexture(const TexturePtr& texture);
+    void setVertexCoords(const GLfloat *vertices);
+    void setTextureCoords(const GLfloat *textureCoords);
+
+    void prepareForDraw();
+    void drawTriangleStrip(int numVertices);
+    void releaseFromDraw();
+
+private:
+    Boolean<false> m_mustDisableVertexArray;
+    Boolean<false> m_mustDisableTexCoordsArray;
+};
+
+#endif

src/framework/graphics/paintershadersources.h

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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.
+ */
+
+static int VERTEX_COORDS_ATTR = 0;
+static int TEXTURE_COORDS_ATTR = 1;
+
+static int PROJECTION_MATRIX_UNIFORM = 0;
+static int TEXTURE_TRANSFORM_MATRIX_UNIFORM = 1;
+static int COLOR_UNIFORM = 2;
+static int OPACITY_UNIFORM = 3;
+static int TEXTURE_UNIFORM = 4;
+
+static const char *glslMainVertexShader = "\n\
+    vec4 calculatePosition();\n\
+    void main() {\n\
+        gl_Position = calculatePosition();\n\
+    }\n";
+
+static const char *glslMainWithTexCoordsVertexShader = "\n\
+    attribute vec2 textureCoord;\n\
+    uniform mat2 textureTransformMatrix;\n\
+    varying vec2 textureCoords;\n\
+    vec4 calculatePosition();\n\
+    void main()\n\
+    {\n\
+        gl_Position = calculatePosition();\n\
+        textureCoords = textureTransformMatrix * textureCoord;\n\
+    }\n";
+
+static const char *glslPositionOnlyVertexShader = "\n\
+    attribute vec2 vertexCoord;\n\
+    uniform mat3 projectionMatrix;\n\
+    vec4 calculatePosition() {\n\
+        return vec4(projectionMatrix * vec3(vertexCoord.xy, 1), 1);\n\
+    }\n";
+
+static const char *glslMainFragmentShader = "\n\
+    uniform float opacity;\n\
+    vec4 calculatePixel();\n\
+    void main()\n\
+    {\n\
+        gl_FragColor = calculatePixel() * opacity;\n\
+    }\n";
+
+static const char *glslTextureSrcFragmentShader = "\n\
+    varying vec2 textureCoords;\n\
+    uniform vec4 color;\n\
+    uniform sampler2D texture;\n\
+    vec4 calculatePixel() {\n\
+        return texture2D(texture, textureCoords) * color;\n\
+    }\n";
+
+static const char *glslSolidColorFragmentShader = "\n\
+    uniform vec4 color;\n\
+    vec4 calculatePixel() {\n\
+        return color;\n\
+    }\n";

src/framework/graphics/shader.cpp

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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 "shader.h"
+
+Shader::Shader(Shader::ShaderType shaderType)
+{
+    m_shaderType = shaderType;
+    switch(shaderType) {
+        case Vertex:
+            m_shaderId = glCreateShader(GL_VERTEX_SHADER);
+            break;
+        case Fragment:
+            m_shaderId = glCreateShader(GL_FRAGMENT_SHADER);
+            break;
+    }
+
+    if(!m_shaderId)
+        logFatal("Unable to create GL shader");
+}
+
+Shader::~Shader()
+{
+    glDeleteShader(m_shaderId);
+}
+
+bool Shader::compileSourceCode(const std::string& sourceCode)
+{
+    const char *c_source = sourceCode.c_str();
+    glShaderSource(m_shaderId, 1, &c_source, NULL);
+    glCompileShader(m_shaderId);
+
+    int res;
+    glGetShaderiv(m_shaderId, GL_COMPILE_STATUS, &res);
+    return (res == GL_TRUE);
+}
+
+bool Shader::compileSourceFile(const std::string& sourceFile)
+{
+    std::ifstream fin(sourceFile);
+    std::string sourceCode((std::istreambuf_iterator<char>(fin)), std::istreambuf_iterator<char>());
+    return compileSourceCode(sourceCode);
+}
+
+std::string Shader::log()
+{
+    std::string infoLog;
+    GLint infoLogLength;
+    glGetShaderiv(m_shaderId, GL_INFO_LOG_LENGTH, &infoLogLength);
+    if(infoLogLength > 1) {
+        std::vector<char> buf(infoLogLength);
+        glGetShaderInfoLog(m_shaderId, infoLogLength-1, NULL, &buf[0]);
+        infoLog = &buf[0];
+    }
+    return infoLog;
+}

src/framework/graphics/shader.h

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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.
+ */
+
+#ifndef SHADER_H
+#define SHADER_H
+
+#include "declarations.h"
+
+class Shader
+{
+public:
+    enum ShaderType {
+        Vertex,
+        Fragment
+    };
+
+    Shader(ShaderType shaderType);
+    ~Shader();
+
+    bool compileSourceCode(const std::string& sourceCode);
+    bool compileSourceFile(const std::string& sourceFile);
+    std::string log();
+
+    GLuint getShaderId() { return m_shaderId; }
+    ShaderType getShaderType() { return m_shaderType; }
+
+private:
+    GLuint m_shaderId;
+    ShaderType m_shaderType;
+};
+
+#endif

src/framework/graphics/shaderprogram.cpp

@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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 "shaderprogram.h"
+
+GLuint ShaderProgram::m_currentProgram = 0;
+
+ShaderProgram::ShaderProgram()
+{
+    m_linked = false;
+    m_programId = glCreateProgram();
+    m_uniformLocations.fill(-1);
+    if(!m_programId)
+        logFatal("Unable to create GL shader program");
+}
+
+ShaderProgram::~ShaderProgram()
+{
+    glDeleteProgram(m_programId);
+}
+
+bool ShaderProgram::addShader(const ShaderPtr& shader) {
+    glAttachShader(m_programId, shader->getShaderId());
+    m_linked = false;
+    m_shaders.push_back(shader);
+    return true;
+}
+
+bool ShaderProgram::addShaderFromSourceCode(Shader::ShaderType shaderType, const std::string& sourceCode) {
+    ShaderPtr shader(new Shader(shaderType));
+    if(!shader->compileSourceCode(sourceCode)) {
+        logError("failed to compile shader: ", shader->log());
+        return false;
+    }
+    return addShader(shader);
+}
+
+bool ShaderProgram::addShaderFromSourceFile(Shader::ShaderType shaderType, const std::string& sourceFile) {
+    ShaderPtr shader(new Shader(shaderType));
+    if(!shader->compileSourceFile(sourceFile)) {
+        logError("failed to compile shader: ", shader->log());
+        return false;
+    }
+    return addShader(shader);
+}
+
+void ShaderProgram::removeShader(const ShaderPtr& shader)
+{
+    auto it = std::find(m_shaders.begin(), m_shaders.end(), shader);
+    if(it == m_shaders.end())
+        return;
+
+    glDetachShader(m_programId, shader->getShaderId());
+    m_shaders.erase(it);
+    m_linked = false;
+}
+
+void ShaderProgram::removeAllShaders()
+{
+    while(!m_shaders.empty())
+        removeShader(m_shaders.front());
+}
+
+bool ShaderProgram::link()
+{
+    if(m_linked)
+        return true;
+
+    glLinkProgram(m_programId);
+
+    GLint value;
+    glGetProgramiv(m_programId, GL_LINK_STATUS, &value);
+    m_linked = (value != GL_FALSE);
+
+    if(!m_linked)
+        logTraceWarning(log());
+    return m_linked;
+}
+
+bool ShaderProgram::bind()
+{
+    if(m_currentProgram != m_programId) {
+        if(!m_linked && !link())
+            return false;
+        glUseProgram(m_programId);
+        m_currentProgram = m_programId;
+    }
+    return true;
+}
+
+void ShaderProgram::release()
+{
+    m_currentProgram = 0;
+    glUseProgram(0);
+}
+
+std::string ShaderProgram::log()
+{
+    std::string infoLog;
+    GLint infoLogLength;
+    glGetProgramiv(m_programId, GL_INFO_LOG_LENGTH, &infoLogLength);
+    if(infoLogLength > 1) {
+        std::vector<char> buf(infoLogLength);
+        glGetShaderInfoLog(m_programId, infoLogLength-1, NULL, &buf[0]);
+        infoLog = &buf[0];
+    }
+    return infoLog;
+}
+
+int ShaderProgram::getAttributeLocation(const char* name)
+{
+    return glGetAttribLocation(m_programId, name);
+}
+
+void ShaderProgram::bindAttributeLocation(int location, const char* name)
+{
+    return glBindAttribLocation(m_programId, location, name);
+}
+
+void ShaderProgram::bindUniformLocation(int location, const char* name)
+{
+    assert(m_linked);
+    assert(location >= 0 && location < 10);
+    m_uniformLocations[location] = glGetUniformLocation(m_programId, name);
+}

src/framework/graphics/shaderprogram.h

@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2010-2011 OTClient <https://github.com/edubart/otclient>
+ *
+ * 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.
+ */
+
+#ifndef SHADERPROGRAM_H
+#define SHADERPROGRAM_H
+
+#include "shader.h"
+
+class ShaderProgram
+{
+    enum {
+        MAX_UNIFORM_LOCATIONS = 10
+    };
+public:
+    ShaderProgram();
+    ~ShaderProgram();
+
+    bool addShader(const ShaderPtr& shader);
+    bool addShaderFromSourceCode(Shader::ShaderType shaderType, const std::string& sourceCode);
+    bool addShaderFromSourceFile(Shader::ShaderType shaderType, const std::string& sourceFile);
+    void removeShader(const ShaderPtr& shader);
+    void removeAllShaders();
+    bool link();
+    bool bind();
+    void release();
+    std::string log();
+
+    void disableAttributeArray(int location) { glDisableVertexAttribArray(location); }
+    void enableAttributeArray(int location) { glEnableVertexAttribArray(location); }
+    void disableAttributeArray(const char *name) { glDisableVertexAttribArray(getAttributeLocation(name)); }
+    void enableAttributeArray(const char *name) { glEnableVertexAttribArray(getAttributeLocation(name)); }
+
+    int getAttributeLocation(const char *name);
+    void bindAttributeLocation(int location, const char *name);
+    void bindUniformLocation(int location, const char *name);
+
+    void setAttributeArray(int location, const GLfloat *values, int size, int stride = 0) { glVertexAttribPointer(location, size, GL_FLOAT, GL_FALSE, stride, values); }
+    void setAttributeValue(int location, GLfloat value) { glVertexAttrib1f(location, value); }
+    void setAttributeValue(int location, GLfloat x, GLfloat y) { glVertexAttrib2f(location, x, y); }
+    void setAttributeValue(int location, GLfloat x, GLfloat y, GLfloat z) { glVertexAttrib3f(location, x, y, z); }
+    void setAttributeArray(const char *name, const GLfloat *values, int size, int stride = 0) { glVertexAttribPointer(getAttributeLocation(name), size, GL_FLOAT, GL_FALSE, stride, values); }
+    void setAttributeValue(const char *name, GLfloat value) { glVertexAttrib1f(getAttributeLocation(name), value); }
+    void setAttributeValue(const char *name, GLfloat x, GLfloat y) { glVertexAttrib2f(getAttributeLocation(name), x, y); }
+    void setAttributeValue(const char *name, GLfloat x, GLfloat y, GLfloat z) { glVertexAttrib3f(getAttributeLocation(name), x, y, z); }
+
+    void setUniformValue(int location, GLint value) { glUniform1i(m_uniformLocations[location], value); }
+    void setUniformValue(int location, GLfloat value) { glUniform1f(m_uniformLocations[location], value); }
+    void setUniformValue(int location, GLfloat x, GLfloat y) { glUniform2f(m_uniformLocations[location], x, y); }
+    void setUniformValue(int location, GLfloat x, GLfloat y, GLfloat z) { glUniform3f(m_uniformLocations[location], x, y, z); }
+    void setUniformValue(int location, GLfloat x, GLfloat y, GLfloat z, GLfloat w) { glUniform4f(m_uniformLocations[location], x, y, z, w); }
+    void setUniformValue(int location, GLfloat mat2[2][2], bool transpose) { glUniformMatrix2fv(m_uniformLocations[location], 1, transpose ? GL_TRUE : GL_FALSE, (GLfloat *)mat2); }
+    void setUniformValue(int location, GLfloat mat3[3][3], bool transpose) { glUniformMatrix3fv(m_uniformLocations[location], 1, transpose ? GL_TRUE : GL_FALSE, (GLfloat *)mat3); }
+    void setUniformValue(const char *name, GLint value) { glUniform1i(glGetUniformLocation(m_programId, name), value); }
+    void setUniformValue(const char *name, GLfloat value) { glUniform1f(glGetUniformLocation(m_programId, name), value); }
+    void setUniformValue(const char *name, GLfloat x, GLfloat y) { glUniform2f(glGetUniformLocation(m_programId, name), x, y); }
+    void setUniformValue(const char *name, GLfloat x, GLfloat y, GLfloat z) { glUniform3f(glGetUniformLocation(m_programId, name), x, y, z); }
+    void setUniformValue(const char *name, GLfloat x, GLfloat y, GLfloat z, GLfloat w) { glUniform4f(glGetUniformLocation(m_programId, name), x, y, z, w); }
+    void setUniformValue(const char *name, GLfloat mat2[2][2], bool transpose = false) { glUniformMatrix2fv(glGetUniformLocation(m_programId, name), 1, transpose ? GL_TRUE : GL_FALSE, (GLfloat *)mat2); }
+    void setUniformValue(const char *name, GLfloat mat3[3][3], bool transpose = false) { glUniformMatrix3fv(glGetUniformLocation(m_programId, name), 1, transpose ? GL_TRUE : GL_FALSE, (GLfloat *)mat3); }
+
+    // Point, PointF, Color, Size, SizeF,
+    bool isLinked() { return m_linked; }
+    GLuint getProgramId() { return m_programId; }
+    ShaderList getShaders() { return m_shaders; }
+
+private:
+    bool m_linked;
+    GLuint m_programId;
+    static GLuint m_currentProgram;
+    ShaderList m_shaders;
+    std::array<GLint, MAX_UNIFORM_LOCATIONS> m_uniformLocations;
+};
+
+#endif

src/framework/graphics/texture.cpp

@@ -36,7 +36,6 @@ Texture::Texture(int width, int height, int channels, uchar *pixels)
 
 Texture::~Texture()
 {
-    assert(!g_graphics.isDrawing());
     // free texture from gl memory
     if(m_textureId > 0)
         glDeleteTextures(1, &m_textureId);
@@ -44,9 +43,7 @@ Texture::~Texture()
 
 uint Texture::internalLoadGLTexture(uchar *pixels, int channels, int width, int height)
 {
-    assert(!g_graphics.isDrawing());
+    m_size.resize(width, height);
-
-    m_size.setSize(width, height);
 
     // gets max texture size supported by the driver
     static GLint maxTexSize = -1;
@@ -70,7 +67,7 @@ uint Texture::internalLoadGLTexture(uchar *pixels, int channels, int width, int
     std::vector<uint8> tmp;
 
     // old opengl drivers only accept power of two dimensions
-    //if(!g_graphics.isExtensionSupported("GL_ARB_texture_non_power_of_two")) {
+    //if(!g_painter.isExtensionSupported("GL_ARB_texture_non_power_of_two")) {
         int glWidth = 1;
         while(glWidth < width)
             glWidth = glWidth << 1;
@@ -88,7 +85,7 @@ uint Texture::internalLoadGLTexture(uchar *pixels, int channels, int width, int
             pixels = &tmp[0];
         }
 
-        m_glSize.setSize(glWidth, glHeight);
+        m_glSize.resize(glWidth, glHeight);
     //} else
     //    m_glSize = m_size;
 
@@ -110,7 +107,7 @@ uint Texture::internalLoadGLTexture(uchar *pixels, int channels, int width, int
     }
 
     // load pixels into gl memory
-    glTexImage2D(GL_TEXTURE_2D, 0, channels, m_glSize.width(), m_glSize.height(), 0, format, GL_UNSIGNED_BYTE, pixels);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_glSize.width(), m_glSize.height(), 0, format, GL_UNSIGNED_BYTE, pixels);
 
     // disable texture border
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
@@ -119,7 +116,6 @@ uint Texture::internalLoadGLTexture(uchar *pixels, int channels, int width, int
     // nearest filtering (non smooth)
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
     return id;
 }
 

src/framework/graphics/texture.h

@@ -37,22 +37,22 @@ public:
     virtual void enableBilinearFilter();
 
     /// Get OpenGL texture id
-    uint getId() const { return m_textureId; }
+    GLuint getId()  { return m_textureId; }
 
     /// Copy pixels from OpenGL texture
     std::vector<uint8> getPixels();
 
-    int getWidth() const { return m_size.width(); }
+    int getWidth() { return m_size.width(); }
-    int getHeight() const { return m_size.height(); }
+    int getHeight() { return m_size.height(); }
-    const Size& getSize() const { return m_size; }
+    const Size& getSize() { return m_size; }
-    const Size& getGlSize() const { return m_glSize; }
+    const Size& getGlSize() { return m_glSize; }
 
     bool isEmpty() const { return m_textureId == 0; }
 
 protected:
-    uint internalLoadGLTexture(uchar* pixels, int channels, int w, int h);
+    GLuint internalLoadGLTexture(uchar* pixels, int channels, int w, int h);
 
-    uint m_textureId;
+    GLuint m_textureId;
     Size m_size;
     Size m_glSize;
 };

src/framework/luafunctions.cpp

@@ -36,73 +36,110 @@ void Application::registerLuaFunctions()
     // UIWidget
     g_lua.registerClass<UIWidget>();
     g_lua.bindClassStaticFunction<UIWidget>("create", &UIWidget::create<UIWidget>);
-    g_lua.bindClassMemberFunction<UIWidget>("getId", &UIWidget::getId);
+    g_lua.bindClassMemberFunction<UIWidget>("destroy", &UIWidget::destroy);
-    g_lua.bindClassMemberFunction<UIWidget>("setId", &UIWidget::setId);
-    g_lua.bindClassMemberFunction<UIWidget>("isEnabled", &UIWidget::isEnabled);
-    g_lua.bindClassMemberFunction<UIWidget>("setEnabled", &UIWidget::setEnabled);
-    g_lua.bindClassMemberFunction<UIWidget>("isExplicitlyVisible", &UIWidget::isExplicitlyVisible);
     g_lua.bindClassMemberFunction<UIWidget>("setVisible", &UIWidget::setVisible);
-    g_lua.bindClassMemberFunction<UIWidget>("getWidth", &UIWidget::getWidth);
+    g_lua.bindClassMemberFunction<UIWidget>("setEnabled", &UIWidget::setEnabled);
-    g_lua.bindClassMemberFunction<UIWidget>("setWidth", &UIWidget::setWidth);
+    g_lua.bindClassMemberFunction<UIWidget>("setPressed", &UIWidget::setPressed);
-    g_lua.bindClassMemberFunction<UIWidget>("getHeight", &UIWidget::getHeight);
+    g_lua.bindClassMemberFunction<UIWidget>("setId", &UIWidget::setId);
-    g_lua.bindClassMemberFunction<UIWidget>("setHeight", &UIWidget::setHeight);
+    g_lua.bindClassMemberFunction<UIWidget>("setFocusable", &UIWidget::setFocusable);
-    g_lua.bindClassMemberFunction<UIWidget>("getSize", &UIWidget::getSize);
+    g_lua.bindClassMemberFunction<UIWidget>("setPhantom", &UIWidget::setPhantom);
-    g_lua.bindClassMemberFunction<UIWidget>("setSize", &UIWidget::resize);
-    g_lua.bindClassMemberFunction<UIWidget>("getPosition", &UIWidget::getPosition);
-    g_lua.bindClassMemberFunction<UIWidget>("getX", &UIWidget::getX);
-    g_lua.bindClassMemberFunction<UIWidget>("getY", &UIWidget::getY);
-    g_lua.bindClassMemberFunction<UIWidget>("moveTo", &UIWidget::moveTo);
-    g_lua.bindClassMemberFunction<UIWidget>("moveChildToIndex", &UIWidget::moveChildToIndex);
-    g_lua.bindClassMemberFunction<UIWidget>("getParent", &UIWidget::getParent);
-    g_lua.bindClassMemberFunction<UIWidget>("setParent", &UIWidget::setParent);
-    g_lua.bindClassMemberFunction<UIWidget>("getBackgroundColor", &UIWidget::getBackgroundColor);
-    g_lua.bindClassMemberFunction<UIWidget>("setBackgroundColor", &UIWidget::setBackgroundColor);
-    g_lua.bindClassMemberFunction<UIWidget>("getForegroundColor", &UIWidget::getForegroundColor);
-    g_lua.bindClassMemberFunction<UIWidget>("setForegroundColor", &UIWidget::setForegroundColor);
-    g_lua.bindClassMemberFunction<UIWidget>("getOpacity", &UIWidget::getOpacity);
-    g_lua.bindClassMemberFunction<UIWidget>("setOpacity", &UIWidget::setOpacity);
     g_lua.bindClassMemberFunction<UIWidget>("setStyle", &UIWidget::setStyle);
-    g_lua.bindClassMemberFunction<UIWidget>("applyStyle", &UIWidget::applyStyle);
+    g_lua.bindClassMemberFunction<UIWidget>("setStyleFromNode", &UIWidget::setStyleFromNode);
-    g_lua.bindClassMemberFunction<UIWidget>("getStyle", &UIWidget::getStyle);
+    //g_lua.bindClassMemberFunction<UIWidget>("setLayout", &UIWidget::setLayout);
-    g_lua.bindClassMemberFunction<UIWidget>("getMarginTop", &UIWidget::getMarginTop);
+    g_lua.bindClassMemberFunction<UIWidget>("setParent", &UIWidget::setParent);
+    g_lua.bindClassMemberFunction<UIWidget>("setRect", &UIWidget::setRect);
+    g_lua.bindClassMemberFunction<UIWidget>("setX", &UIWidget::setX);
+    g_lua.bindClassMemberFunction<UIWidget>("setY", &UIWidget::setY);
+    g_lua.bindClassMemberFunction<UIWidget>("setWidth", &UIWidget::setWidth);
+    g_lua.bindClassMemberFunction<UIWidget>("setHeight", &UIWidget::setHeight);
+    //g_lua.bindClassMemberFunction<UIWidget>("setImage", &UIWidget::setImage);
+    //g_lua.bindClassMemberFunction<UIWidget>("setFont", &UIWidget::setFont);
+    g_lua.bindClassMemberFunction<UIWidget>("setOpacity", &UIWidget::setOpacity);
+    g_lua.bindClassMemberFunction<UIWidget>("setBackgroundColor", &UIWidget::setBackgroundColor);
+    g_lua.bindClassMemberFunction<UIWidget>("setForegroundColor", &UIWidget::setForegroundColor);
     g_lua.bindClassMemberFunction<UIWidget>("setMarginTop", &UIWidget::setMarginTop);
-    g_lua.bindClassMemberFunction<UIWidget>("getMarginBottom", &UIWidget::getMarginBottom);
-    g_lua.bindClassMemberFunction<UIWidget>("setMarginBottom", &UIWidget::setMarginBottom);
-    g_lua.bindClassMemberFunction<UIWidget>("getMarginLeft", &UIWidget::getMarginLeft);
-    g_lua.bindClassMemberFunction<UIWidget>("setMarginLeft", &UIWidget::setMarginLeft);
-    g_lua.bindClassMemberFunction<UIWidget>("getMarginRight", &UIWidget::getMarginRight);
     g_lua.bindClassMemberFunction<UIWidget>("setMarginRight", &UIWidget::setMarginRight);
-    g_lua.bindClassMemberFunction<UIWidget>("isVisible", &UIWidget::isVisible);
+    g_lua.bindClassMemberFunction<UIWidget>("setMarginBottom", &UIWidget::setMarginBottom);
-    g_lua.bindClassMemberFunction<UIWidget>("isHidden", &UIWidget::isHidden);
+    g_lua.bindClassMemberFunction<UIWidget>("setMarginLeft", &UIWidget::setMarginLeft);
-    g_lua.bindClassMemberFunction<UIWidget>("isHovered", &UIWidget::isHovered);
+    g_lua.bindClassMemberFunction<UIWidget>("setSizeFixed", &UIWidget::setSizeFixed);
-    g_lua.bindClassMemberFunction<UIWidget>("isFocused", &UIWidget::isFocused);
+    g_lua.bindClassMemberFunction<UIWidget>("setLastFocusReason", &UIWidget::setLastFocusReason);
-    g_lua.bindClassMemberFunction<UIWidget>("isPressed", &UIWidget::isPressed);
+    g_lua.bindClassMemberFunction<UIWidget>("resize", &UIWidget::resize);
-    g_lua.bindClassMemberFunction<UIWidget>("isEnabled", &UIWidget::isEnabled);
+    g_lua.bindClassMemberFunction<UIWidget>("moveTo", &UIWidget::moveTo);
-    g_lua.bindClassMemberFunction<UIWidget>("isDisabled", &UIWidget::isDisabled);
-    g_lua.bindClassMemberFunction<UIWidget>("isActive", &UIWidget::isActive);
     g_lua.bindClassMemberFunction<UIWidget>("hide", &UIWidget::hide);
     g_lua.bindClassMemberFunction<UIWidget>("show", &UIWidget::show);
+    g_lua.bindClassMemberFunction<UIWidget>("disable", &UIWidget::disable);
+    g_lua.bindClassMemberFunction<UIWidget>("enable", &UIWidget::enable);
     g_lua.bindClassMemberFunction<UIWidget>("lock", &UIWidget::lock);
     g_lua.bindClassMemberFunction<UIWidget>("unlock", &UIWidget::unlock);
     g_lua.bindClassMemberFunction<UIWidget>("focus", &UIWidget::focus);
-    g_lua.bindClassMemberFunction<UIWidget>("getChildren", &UIWidget::getChildren);
+    g_lua.bindClassMemberFunction<UIWidget>("isActive", &UIWidget::isActive);
-    g_lua.bindClassMemberFunction<UIWidget>("recursiveGetChildById", &UIWidget::recursiveGetChildById);
+    g_lua.bindClassMemberFunction<UIWidget>("isEnabled", &UIWidget::isEnabled);
-    g_lua.bindClassMemberFunction<UIWidget>("getChildById", &UIWidget::getChildById);
+    g_lua.bindClassMemberFunction<UIWidget>("isDisabled", &UIWidget::isDisabled);
-    g_lua.bindClassMemberFunction<UIWidget>("getChildByIndex", &UIWidget::getChildByIndex);
+    g_lua.bindClassMemberFunction<UIWidget>("isFocused", &UIWidget::isFocused);
+    g_lua.bindClassMemberFunction<UIWidget>("isHovered", &UIWidget::isHovered);
+    g_lua.bindClassMemberFunction<UIWidget>("isPressed", &UIWidget::isPressed);
+    g_lua.bindClassMemberFunction<UIWidget>("isVisible", &UIWidget::isVisible);
+    g_lua.bindClassMemberFunction<UIWidget>("isHidden", &UIWidget::isHidden);
+    g_lua.bindClassMemberFunction<UIWidget>("isExplicitlyEnabled", &UIWidget::isExplicitlyEnabled);
+    g_lua.bindClassMemberFunction<UIWidget>("isExplicitlyVisible", &UIWidget::isExplicitlyVisible);
+    g_lua.bindClassMemberFunction<UIWidget>("isFocusable", &UIWidget::isFocusable);
+    g_lua.bindClassMemberFunction<UIWidget>("isPhantom", &UIWidget::isPhantom);
+    g_lua.bindClassMemberFunction<UIWidget>("isSizeFixed", &UIWidget::isSizeFixed);
+    g_lua.bindClassMemberFunction<UIWidget>("hasChildren", &UIWidget::hasChildren);
+    g_lua.bindClassMemberFunction<UIWidget>("hasChild", &UIWidget::hasChild);
+    g_lua.bindClassMemberFunction<UIWidget>("getId", &UIWidget::getId);
     g_lua.bindClassMemberFunction<UIWidget>("getChildCount", &UIWidget::getChildCount);
+    //g_lua.bindClassMemberFunction<UIWidget>("getLayout", &UIWidget::getLayout);
+    g_lua.bindClassMemberFunction<UIWidget>("getParent", &UIWidget::getParent);
+    g_lua.bindClassMemberFunction<UIWidget>("getRootParent", &UIWidget::getRootParent);
+    g_lua.bindClassMemberFunction<UIWidget>("getPosition", &UIWidget::getPosition);
+    g_lua.bindClassMemberFunction<UIWidget>("getSize", &UIWidget::getSize);
+    g_lua.bindClassMemberFunction<UIWidget>("getRect", &UIWidget::getRect);
+    g_lua.bindClassMemberFunction<UIWidget>("getX", &UIWidget::getX);
+    g_lua.bindClassMemberFunction<UIWidget>("getY", &UIWidget::getY);
+    g_lua.bindClassMemberFunction<UIWidget>("getWidth", &UIWidget::getWidth);
+    g_lua.bindClassMemberFunction<UIWidget>("getHeight", &UIWidget::getHeight);
+    //g_lua.bindClassMemberFunction<UIWidget>("getImage", &UIWidget::getImage);
+    //g_lua.bindClassMemberFunction<UIWidget>("getFont", &UIWidget::getFont);
+    g_lua.bindClassMemberFunction<UIWidget>("getForegroundColor", &UIWidget::getForegroundColor);
+    g_lua.bindClassMemberFunction<UIWidget>("getBackgroundColor", &UIWidget::getBackgroundColor);
+    g_lua.bindClassMemberFunction<UIWidget>("getOpacity", &UIWidget::getOpacity);
+    g_lua.bindClassMemberFunction<UIWidget>("getMarginTop", &UIWidget::getMarginTop);
+    g_lua.bindClassMemberFunction<UIWidget>("getMarginRight", &UIWidget::getMarginRight);
+    g_lua.bindClassMemberFunction<UIWidget>("getMarginBottom", &UIWidget::getMarginBottom);
+    g_lua.bindClassMemberFunction<UIWidget>("getMarginLeft", &UIWidget::getMarginLeft);
+    g_lua.bindClassMemberFunction<UIWidget>("getLastFocusReason", &UIWidget::getLastFocusReason);
+    g_lua.bindClassMemberFunction<UIWidget>("getStyle", &UIWidget::getStyle);
+    g_lua.bindClassMemberFunction<UIWidget>("getChildren", &UIWidget::getChildren);
     g_lua.bindClassMemberFunction<UIWidget>("getFocusedChild", &UIWidget::getFocusedChild);
+    g_lua.bindClassMemberFunction<UIWidget>("getChildAfter", &UIWidget::getChildAfter);
+    g_lua.bindClassMemberFunction<UIWidget>("getChildBefore", &UIWidget::getChildBefore);
+    g_lua.bindClassMemberFunction<UIWidget>("getChildById", &UIWidget::getChildById);
+    g_lua.bindClassMemberFunction<UIWidget>("getChildByPos", &UIWidget::getChildByPos);
+    g_lua.bindClassMemberFunction<UIWidget>("getChildByIndex", &UIWidget::getChildByIndex);
+    g_lua.bindClassMemberFunction<UIWidget>("recursiveGetChildById", &UIWidget::recursiveGetChildById);
+    g_lua.bindClassMemberFunction<UIWidget>("recursiveGetChildByPos", &UIWidget::recursiveGetChildByPos);
+    g_lua.bindClassMemberFunction<UIWidget>("backwardsGetWidgetById", &UIWidget::backwardsGetWidgetById);
+    g_lua.bindClassMemberFunction<UIWidget>("addChild", &UIWidget::addChild);
     g_lua.bindClassMemberFunction<UIWidget>("insertChild", &UIWidget::insertChild);
     g_lua.bindClassMemberFunction<UIWidget>("removeChild", &UIWidget::removeChild);
-    g_lua.bindClassMemberFunction<UIWidget>("hasChild", &UIWidget::hasChild);
-    g_lua.bindClassMemberFunction<UIWidget>("addChild", &UIWidget::addChild);
     g_lua.bindClassMemberFunction<UIWidget>("focusChild", &UIWidget::focusChild);
     g_lua.bindClassMemberFunction<UIWidget>("focusNextChild", &UIWidget::focusNextChild);
     g_lua.bindClassMemberFunction<UIWidget>("focusPreviousChild", &UIWidget::focusPreviousChild);
+    g_lua.bindClassMemberFunction<UIWidget>("moveChildToTop", &UIWidget::moveChildToTop);
+    g_lua.bindClassMemberFunction<UIWidget>("moveChildToIndex", &UIWidget::moveChildToIndex);
     g_lua.bindClassMemberFunction<UIWidget>("lockChild", &UIWidget::lockChild);
     g_lua.bindClassMemberFunction<UIWidget>("unlockChild", &UIWidget::unlockChild);
-    g_lua.bindClassMemberFunction<UIWidget>("updateLayout", &UIWidget::updateLayout);
+    g_lua.bindClassMemberFunction<UIWidget>("isChildLocked", &UIWidget::isChildLocked);
+    g_lua.bindClassMemberFunction<UIWidget>("getChildIndex", &UIWidget::getChildIndex);
     g_lua.bindClassMemberFunction<UIWidget>("updateParentLayout", &UIWidget::updateParentLayout);
-    g_lua.bindClassMemberFunction<UIWidget>("destroy", &UIWidget::destroy);
+    g_lua.bindClassMemberFunction<UIWidget>("updateLayout", &UIWidget::updateLayout);
+    g_lua.bindClassMemberFunction<UIWidget>("updateStates", &UIWidget::updateStates);
+    g_lua.bindClassMemberFunction<UIWidget>("updateState", &UIWidget::updateState);
+    g_lua.bindClassMemberFunction<UIWidget>("setState", &UIWidget::setState);
+    g_lua.bindClassMemberFunction<UIWidget>("hasState", &UIWidget::hasState);
+    g_lua.bindClassMemberFunction<UIWidget>("updateStyle", &UIWidget::updateStyle);
+    g_lua.bindClassMemberFunction<UIWidget>("applyStyle", &UIWidget::applyStyle);
 
     // UILabel
     g_lua.registerClass<UILabel, UIWidget>();
@@ -175,12 +212,27 @@ void Application::registerLuaFunctions()
     g_lua.bindClassStaticFunction<Logger>("fireOldMessages", std::bind(&Logger::fireOldMessages, &g_logger));
     g_lua.bindClassStaticFunction<Logger>("setOnLog", std::bind(&Logger::setOnLog, &g_logger, _1));
 
+    // Font
+
+    /*
+    // FontManager
+    g_lua.registerStaticClass("g_fonts");
+    g_lua.bindClassStaticFunction("g_fonts", "releaseFonts", std::bind(&FontManager::releaseFonts, &g_fonts));
+    g_lua.bindClassStaticFunction("g_fonts", "importFont", std::bind(&FontManager::importFont, &g_fonts, _1));
+    g_lua.bindClassStaticFunction("g_fonts", "fontExists", std::bind(&FontManager::fontExists, &g_fonts, _1));
+    g_lua.bindClassStaticFunction("g_fonts", "getFont", std::bind(&FontManager::getFont, &g_fonts, _1));
+    g_lua.bindClassStaticFunction("g_fonts", "getDefaultFont", std::bind(&FontManager::getDefaultFont, &g_fonts));
+    g_lua.bindClassStaticFunction("g_fonts", "setDefaultFont", std::bind(&FontManager::setDefaultFont, &g_fonts, _1));
+    */
+
+    g_lua.registerStaticClass("g_dispatcher");
+    g_lua.bindClassStaticFunction("g_dispatcher", "addEvent", std::bind(&EventDispatcher::addEvent, &g_dispatcher, _1, _2));
+    g_lua.bindClassStaticFunction("g_dispatcher", "scheduleEvent", std::bind(&EventDispatcher::scheduleEvent, &g_dispatcher, _1, _2));
+
     // global functions
     g_lua.bindGlobalFunction("importFont", std::bind(&FontManager::importFont, &g_fonts, _1));
     g_lua.bindGlobalFunction("importStyles", std::bind(&UIManager::importStyles, &g_ui, _1));
     g_lua.bindGlobalFunction("setDefaultFont", std::bind(&FontManager::setDefaultFont, &g_fonts, _1));
     g_lua.bindGlobalFunction("loadUI", std::bind(&UIManager::loadUI, &g_ui, _1, _2));
     g_lua.bindGlobalFunction("getRootWidget", std::bind(&UIManager::getRootWidget, &g_ui));
-    g_lua.bindGlobalFunction("addEvent", std::bind(&EventDispatcher::addEvent, &g_dispatcher, _1, false));
-    g_lua.bindGlobalFunction("scheduleEvent", std::bind(&EventDispatcher::scheduleEvent, &g_dispatcher, _1, _2));
 }

src/framework/platform/x11window.cpp

@@ -340,7 +340,7 @@ void X11Window::internalChooseGLVisual()
     m_rootWindow = RootWindow(m_display, m_visual->screen);
 #else
     static int attrList[] = {
-        EGL_BUFFER_SIZE, 16,
+        EGL_BUFFER_SIZE, 24,
         EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
         EGL_NONE
     };

src/framework/ui/uibutton.cpp

@@ -40,9 +40,9 @@ void UIButton::render()
 
     if(m_icon) {
         Rect iconRect;
-        iconRect.setSize(m_icon->getSize());
+        iconRect.resize(m_icon->getSize());
         iconRect.moveCenter(m_rect.center());
-        g_graphics.drawTexturedRect(iconRect, m_icon);
+        g_painter.drawTexturedRect(iconRect, m_icon);
     }
 
     Rect textRect = m_rect;

src/framework/ui/uicheckbox.cpp

@@ -38,10 +38,10 @@ void UICheckBox::render()
 {
     if(m_image) {
         Rect boxRect;
-        boxRect.setSize(m_boxSize);
+        boxRect.resize(m_boxSize);
         boxRect.moveLeft(m_rect.left());
         boxRect.moveVerticalCenter(m_rect.verticalCenter());
-        g_graphics.bindColor(m_backgroundColor);
+        g_painter.setColor(m_backgroundColor);
         m_image->draw(boxRect);
     }
 

src/framework/ui/uilineedit.cpp

@@ -47,9 +47,9 @@ void UILineEdit::render()
     int textLength = m_text.length();
     const TexturePtr& texture = m_font->getTexture();
 
-    g_graphics.bindColor(m_foregroundColor);
+    g_painter.setColor(m_foregroundColor);
     for(int i=0;i<textLength;++i)
-        g_graphics.drawTexturedRect(m_glyphsCoords[i], texture, m_glyphsTexCoords[i]);
+        g_painter.drawTexturedRect(m_glyphsCoords[i], texture, m_glyphsTexCoords[i]);
 
     // render cursor
     if(isExplicitlyEnabled() && (isActive() || m_alwaysActive) && m_cursorPos >= 0) {
@@ -63,7 +63,7 @@ void UILineEdit::render()
                 cursorRect = Rect(m_drawArea.left()-1, m_drawArea.top(), 1, m_font->getGlyphHeight());
             else
                 cursorRect = Rect(m_glyphsCoords[m_cursorPos-1].right(), m_glyphsCoords[m_cursorPos-1].top(), 1, m_font->getGlyphHeight());
-            g_graphics.drawFilledRect(cursorRect);
+            g_painter.drawFilledRect(cursorRect);
         } else if(g_clock.ticksElapsed(m_cursorTicks) >= 2*delay) {
             m_cursorTicks = g_clock.ticks();
         }

src/framework/ui/uimanager.cpp

@@ -25,6 +25,7 @@
 
 #include <framework/otml/otml.h>
 #include <framework/graphics/graphics.h>
+#include <framework/platform/platformwindow.h>
 
 UIManager g_ui;
 
@@ -33,7 +34,7 @@ void UIManager::init()
     // creates root widget
     m_rootWidget = UIWidget::create<UIWidget>();
     m_rootWidget->setId("root");
-    m_rootWidget->resize(g_graphics.getScreenSize());
+    m_rootWidget->resize(g_window.getSize());
 }
 
 void UIManager::terminate()
@@ -50,7 +51,7 @@ void UIManager::render()
 
 void UIManager::resize(const Size& size)
 {
-    m_rootWidget->resize(g_graphics.getScreenSize());
+    m_rootWidget->resize(g_window.getSize());
 }
 
 void UIManager::inputEvent(const InputEvent& event)
@@ -174,12 +175,15 @@ UIWidgetPtr UIManager::loadWidgetFromOTML(const OTMLNodePtr& widgetNode, const U
     if(parent)
         parent->addChild(widget);
 
-    widget->setStyleFromNode(styleNode);
+    if(widget) {
+        widget->setStyleFromNode(styleNode);
 
-    for(const OTMLNodePtr& childNode : widgetNode->children()) {
+        for(const OTMLNodePtr& childNode : widgetNode->children()) {
-        if(!childNode->isUnique())
+            if(!childNode->isUnique())
-            loadWidgetFromOTML(childNode, widget);
+                loadWidgetFromOTML(childNode, widget);
-    }
+        }
+    } else
+        logError("Unable to create widget of type '", widgetType, "'");
 
     return widget;
 }

src/framework/ui/uiprogressbar.cpp

@@ -35,14 +35,14 @@ void UIProgressBar::render()
 {
     UIWidget::render();
 
-    g_graphics.bindColor(m_foregroundColor);
+    g_painter.setColor(m_foregroundColor);
-    g_graphics.drawBoundingRect(m_rect, 1);
+    g_painter.drawBoundingRect(m_rect, 1);
 
     Rect fillRect = m_rect.expanded(-1);
     fillRect.setWidth(fillRect.width() * m_percent / 100.0);
 
-    g_graphics.bindColor(m_backgroundColor);
+    g_painter.setColor(m_backgroundColor);
-    g_graphics.drawFilledRect(fillRect);
+    g_painter.drawFilledRect(fillRect);
 }
 
 void UIProgressBar::setPercent(double percent)

src/framework/ui/uiwidget.cpp

@@ -69,7 +69,7 @@ void UIWidget::renderSelf()
 {
     // draw background
     if(m_image) {
-        g_graphics.bindColor(m_backgroundColor);
+        g_painter.setColor(m_backgroundColor);
         m_image->draw(m_rect);
     }
 }
@@ -81,20 +81,20 @@ void UIWidget::renderChildren()
         // render only visible children with a valid rect inside our rect
         if(child->isExplicitlyVisible() && child->getRect().isValid() && child->getRect().intersects(m_rect)) {
             // store current graphics opacity
-            int oldOpacity = g_graphics.getOpacity();
+            int oldOpacity = g_painter.getOpacity();
 
             // decrease to self opacity
             if(child->getOpacity() < oldOpacity)
-                g_graphics.setOpacity(child->getOpacity());
+                g_painter.setOpacity(child->getOpacity());
 
             child->render();
 
             // debug draw box
-            //g_graphics.bindColor(Fw::green);
+            //g_painter.setColor(Fw::green);
-            //g_graphics.drawBoundingRect(child->getRect());
+            //g_painter.drawBoundingRect(child->getRect());
             //g_fonts.getDefaultFont()->renderText(child->getId(), child->getPosition() + Point(2, 0), Fw::red);
 
-            g_graphics.setOpacity(oldOpacity);
+            g_painter.setOpacity(oldOpacity);
         }
     }
 }

src/framework/util/rect.h

@@ -78,8 +78,8 @@ public:
     void setBottomLeft(const TPoint<T> &p) { x1 = p.x; y2 = p.y; }
     void setWidth(T width) { x2 = x1 + width - 1; }
     void setHeight(T height) { y2 = y1 + height- 1; }
-    void setSize(T width, T height) { x2 = x1 + width - 1; y2 = y1 + height - 1; }
+    void resize(T width, T height) { x2 = x1 + width - 1; y2 = y1 + height - 1; }
-    void setSize(const TSize<T>& size) { x2 = x1 + size.width() - 1; y2 = y1 + size.height() - 1; }
+    void resize(const TSize<T>& size) { x2 = x1 + size.width() - 1; y2 = y1 + size.height() - 1; }
     void setRect(T x, T y, T width, T height) { x1 = x; y1 = y; x2 = (x + width - 1); y2 = (y + height - 1); }
     void setCoords(int left, int top, int right, int bottom) { x1 = left; y1 = top; x2 = right; y2 = bottom; }
 

src/framework/util/size.h

@@ -43,7 +43,7 @@ public:
     int width() const { return wd; }
     int height() const { return ht; }
 
-    void setSize(T w, T h) { wd = w; ht = h; }
+    void resize(T w, T h) { wd = w; ht = h; }
     void setWidth(T w) { wd = w; }
     void setHeight(T h) { ht = h; }
 
@@ -115,7 +115,7 @@ std::istream& operator>>(std::istream& in, TSize<T>& size)
 {
     T w, h;
     in >> w >> h;
-    size.setSize(w, h);
+    size.resize(w, h);
     return in;
 }
 

src/framework/util/tools.h

@@ -30,6 +30,8 @@
 #include <sstream>
 #include <exception>
 #include <cxxabi.h>
+#include <vector>
+#include <boost/algorithm/string.hpp>
 #include "types.h"
 #include "exception.h"
 
@@ -258,6 +260,16 @@ inline std::string ip2str(uint32 ip) {
     return std::string(host);
 }
 
+template<typename T = std::string>
+std::vector<T> split(const std::string& str, const std::string& separators = " ") {
+    std::vector<std::string> splitted;
+    boost::split(splitted, str, boost::is_any_of(std::string(separators)));
+    std::vector<T> results(splitted.size());
+    for(uint i=0;i<splitted.size();++i)
+        results[i] = Fw::safeCast<T>(splitted[i]);
+    return results;
+}
+
 template<typename... T>
 void throwException(const T&... args) {
     throw Exception(Fw::mkstr(args...));

src/main.cpp

@@ -25,9 +25,9 @@
 int main(int argc, const char* argv[])
 {
     std::vector<std::string> args(argv, argv + argc);
-    OTClient otclient;
+    OTClient app;
-    otclient.init(args);
+    app.init(args);
-    otclient.run();
+    app.run();
-    otclient.terminate();
+    app.terminate();
     return 0;
 }

src/otclient/core/creature.cpp

@@ -47,8 +47,8 @@ void Creature::draw(const Point& p)
 {
     // TODO: activate on attack, follow, discover how 'attacked' works
     if(m_showSquareColor) {
-        g_graphics.bindColor(Outfit::getColor(m_squareColor));
+        g_painter.setColor(Outfit::getColor(m_squareColor));
-        g_graphics.drawBoundingRect(Rect(p + m_walkOffset - 8, Size(32, 32)), 2);
+        g_painter.drawBoundingRect(Rect(p + m_walkOffset - 8, Size(32, 32)), 2);
     }
 
     // Render creature
@@ -59,33 +59,33 @@ void Creature::draw(const Point& p)
             continue;
 
         // draw white item
-        g_graphics.bindColor(Fw::white);
+        g_painter.setColor(Fw::white);
         internalDraw(p + m_walkOffset, 0);
 
         // draw mask if exists
         if(m_type->dimensions[ThingType::Layers] > 1) {
             // switch to blend color mode
-            g_graphics.bindBlendFunc(Fw::BlendColorzing);
+            g_painter.setCompositionMode(Painter::CompositionMode_ColorizeDest);
 
             // head
-            g_graphics.bindColor(m_outfit.getHeadColor());
+            g_painter.setColor(m_outfit.getHeadColor());
             internalDraw(p + m_walkOffset, 1, Otc::SpriteYellowMask);
 
             // body
-            g_graphics.bindColor(m_outfit.getBodyColor());
+            g_painter.setColor(m_outfit.getBodyColor());
             internalDraw(p + m_walkOffset, 1, Otc::SpriteRedMask);
 
             // legs
-            g_graphics.bindColor(m_outfit.getLegsColor());
+            g_painter.setColor(m_outfit.getLegsColor());
             internalDraw(p + m_walkOffset, 1, Otc::SpriteGreenMask);
 
             // feet
-            g_graphics.bindColor(m_outfit.getFeetColor());
+            g_painter.setColor(m_outfit.getFeetColor());
             internalDraw(p + m_walkOffset, 1, Otc::SpriteBlueMask);
 
             // restore default blend func
-            g_graphics.bindBlendFunc(Fw::BlendDefault);
+            g_painter.setCompositionMode(Painter::CompositionMode_SourceOver);
-            g_graphics.bindColor(Fw::white);
+            g_painter.setColor(Fw::white);
         }
     }
 }
@@ -115,11 +115,11 @@ void Creature::drawInformation(int x, int y, bool useGray, const Rect& rect)
     healthRect.setWidth((m_healthPercent / 100.0) * 25);
 
     // draw
-    g_graphics.bindColor(Fw::black);
+    g_painter.setColor(Fw::black);
-    g_graphics.drawFilledRect(backgroundRect);
+    g_painter.drawFilledRect(backgroundRect);
 
-    g_graphics.bindColor(fillColor);
+    g_painter.setColor(fillColor);
-    g_graphics.drawFilledRect(healthRect);
+    g_painter.drawFilledRect(healthRect);
 
     m_informationFont->renderText(m_name, textRect, Fw::AlignTopCenter, fillColor);
 }

src/otclient/core/map.cpp

@@ -41,7 +41,7 @@ void Map::draw(const Rect& rect)
     if(!m_framebuffer)
         m_framebuffer = FrameBufferPtr(new FrameBuffer(m_visibleSize.width() * NUM_TILE_PIXELS, m_visibleSize.height() * NUM_TILE_PIXELS));
 
-    g_graphics.bindColor(Fw::white);
+    g_painter.setColor(Fw::white);
     m_framebuffer->bind();
 
     // draw offsets
@@ -80,9 +80,9 @@ void Map::draw(const Rect& rect)
         }
     }
 
-    m_framebuffer->unbind();
+    m_framebuffer->release();
 
-    g_graphics.bindColor(Fw::white);
+    g_painter.setColor(Fw::white);
     m_framebuffer->draw(rect);
 
     // calculate stretch factor

src/otclient/core/thing.cpp

@@ -55,7 +55,7 @@ void Thing::internalDraw(const Point& p, int layers, Otc::SpriteMask mask)
             Rect drawRect((p.x - xi*32) - m_type->parameters[ThingType::DisplacementX],
                           (p.y - yi*32) - m_type->parameters[ThingType::DisplacementY],
                           32, 32);
-            g_graphics.drawTexturedRect(drawRect, spriteTex);
+            g_painter.drawTexturedRect(drawRect, spriteTex);
         }
     }
 }

src/otclient/otclient.cpp

@@ -36,6 +36,5 @@ void OTClient::init(const std::vector<std::string>& args)
     g_modules.discoverModules();
     g_modules.autoLoadModules(100);
     g_modules.ensureModuleLoaded("client");
-    g_modules.ensureModuleLoaded("game");
     g_modules.autoLoadModules(1000);
 }

src/otclient/ui/uicreature.cpp

@@ -34,7 +34,7 @@ void UICreature::render()
     renderSelf();
 
     if(m_creature) {
-        g_graphics.bindColor(Fw::white);
+        g_painter.setColor(Fw::white);
         m_creature->draw(m_rect.bottomRight() - Point(32, 32) + m_creatureMargin);
     }
 

src/otclient/ui/uiitem.cpp

@@ -34,7 +34,7 @@ void UIItem::render()
     renderSelf();
 
     if(m_item) {
-        g_graphics.bindColor(Fw::white);
+        g_painter.setColor(Fw::white);
         m_item->draw(m_rect.bottomRight() - Point(32, 32) + m_itemMargin);
     }
 

src/otclient/ui/uimap.cpp

@@ -35,8 +35,8 @@ void UIMap::render()
 {
     renderSelf();
 
-    g_graphics.bindColor(Fw::black);
+    g_painter.setColor(Fw::black);
-    g_graphics.drawBoundingRect(m_mapRect.expanded(1));
+    g_painter.drawBoundingRect(m_mapRect.expanded(1));
     g_map.draw(m_mapRect);
 
     renderChildren();
@@ -78,6 +78,6 @@ void UIMap::onGeometryUpdate(const Rect& oldRect, const Rect& newRect)
     Size mapSize(g_map.getVibibleSize().width() * Map::NUM_TILE_PIXELS, g_map.getVibibleSize().height() * Map::NUM_TILE_PIXELS);
     mapSize.scale(mapRect.size(), Fw::KeepAspectRatio);
 
-    m_mapRect.setSize(mapSize);
+    m_mapRect.resize(mapSize);
     m_mapRect.moveCenter(newRect.center());
 }

tools/lua-binding-generator/generate_lua_bindings.lua

@@ -15,16 +15,16 @@ if not io.open(cppclassheader, 'r') then
   return false
 end
 
-function string.matchcount(str, pattern)
+function string:matchcount(pattern)
   local count = 0
-  for w in str:gmatch(pattern) do count = count + 1 end
+  for w in self:gmatch(pattern) do count = count + 1 end
   return count
 end
 
-function string.splitlines(str)
+function string:splitlines()
   local t = {}
   local function helper(line) table.insert(t, line) return "" end
-  helper((str:gsub("(.-)\r?\n", helper)))
+  helper((self:gsub("(.-)\r?\n", helper)))
   return t
 end
 
@@ -34,7 +34,7 @@ for line in io.lines(cppclassheader) do
   foundclassname = line:match('^class ([%w_]+)')
   if foundclassname then
     if not cppclassname then
-      guessedclassname = cppclassheader:match('([%w_]+).h'):lower()
+      guessedclassname = cppclassheader:match('([%w_]+)\.h$'):lower()
       if foundclassname:lower() == guessedclassname then
         cppclassname = foundclassname
       end
@@ -69,8 +69,9 @@ for line in io.lines(cppclassheader) do
     elseif line:match('private:') or line:match('protected:') then
       publicmethods = false
     elseif publicmethods then
-      for funcname,args in line:gmatch(' *[%w :_]* ([%w_]+)%(([^%(]*%)) *[;{].*$') do
+      funcname, args = line:match('^ *[%w <>&\*:_]* ([%w_]+)%(([^%)]*%))[%w ]*[;{].*$')
-        if funcname ~= cppclassname then
+      if funcname then
+        if funcname ~= cppclassname and funcname ~= 'create' then
           numargs = args:matchcount('[^,)]+[,)]')
 
           if cppclassinstance then