more opengl graphics fixes

modules/client_terminal/terminal.lua

@@ -181,8 +181,6 @@ function Terminal.addLine(text, color)
   local numLines = terminalBuffer:getChildCount() + 1
   if numLines > MaxLogLines then
     terminalBuffer:getChildByIndex(1):destroy()
-  else
-    terminalBuffer:setHeight(terminalBuffer:getHeight() + LabelHeight)
   end
 
   -- create new line label

modules/client_terminal/terminal.otui

@@ -14,7 +14,7 @@ UIWindow
     id: terminalBuffer
     layout:
       type: verticalBox
-      align-bottom: true
+      fit-children: true
     focusable: false
     anchors.left: parent.left
     anchors.right: parent.right

modules/client_topmenu/topmenu.otui

@@ -70,8 +70,8 @@ TopPanel
     anchors.right: parent.right
 
   UILabel
-    size: 68 16
     text-align: right
+    text-auto-resize: true
     color: white
     id: frameCounter
     anchors.top: parent.top

src/framework/application.cpp

@@ -201,6 +201,9 @@ void Application::run()
             if(redraw) {
                 g_graphics.beginRender();
 
+                glClearColor(0,0,0,0);
+                glClear(GL_COLOR_BUFFER_BIT);
+
                 Rect viewportRect(0, 0, g_graphics.getViewportSize());
 
                 // draw the foreground into a texture
@@ -214,8 +217,8 @@ void Application::run()
                     m_foreground->copyFromScreen(viewportRect);
                 }
 
-                //glClearColor(0,0,0,0);
+                glClearColor(0,0,0,0);
-                //glClear(GL_COLOR_BUFFER_BIT);
+                glClear(GL_COLOR_BUFFER_BIT);
 
                 // draw background (animated stuff)
                 m_backgroundFrameCounter.processNextFrame();
@@ -223,6 +226,7 @@ void Application::run()
 
                 // draw the foreground (steady stuff)
                 g_painter->setColor(Color::white);
+                g_painter->setOpacity(1.0);
                 g_painter->drawTexturedRect(viewportRect, m_foreground, viewportRect);
 
                 g_graphics.endRender();

src/framework/core/logger.cpp

@@ -80,10 +80,11 @@ void Logger::fireOldMessages()
 {
     if(m_onLog) {
         auto backup = m_logMessages;
-        for(const LogMessage& logMessage : backup)
+        for(const LogMessage& logMessage : backup) {
             m_onLog(logMessage.level, logMessage.message, logMessage.when);
         }
     }
+}
 
 void Logger::setLogFile(const std::string& file)
 {

src/framework/core/logger.h

@@ -48,7 +48,7 @@ public:
     void info(const std::string& what) { log(Fw::LogInfo, what); }
     void warning(const std::string& what) { log(Fw::LogWarning, what); }
     void error(const std::string& what) { log(Fw::LogError, what); }
-    void fatal(const std::string& what) { log(Fw::LogError, what); }
+    void fatal(const std::string& what) { log(Fw::LogFatal, what); }
 
     void fireOldMessages();
     void setLogFile(const std::string& file);

src/framework/graphics/graphics.cpp

@@ -87,12 +87,17 @@ void Graphics::init()
     */
 
     // determine max texture size
-    static GLint maxTextureSize = -1;
+    GLint maxTextureSize = 0;
-    if(maxTextureSize == -1)
     glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
     if(m_maxTextureSize == -1 || m_maxTextureSize > maxTextureSize)
         m_maxTextureSize = maxTextureSize;
 
+    // check if we have alpha channel in the color buffer, because we need alpha channel for glCopyTexSubImage2D
+    GLint alphaBits = 0;
+    glGetIntegerv(GL_ALPHA_BITS, &alphaBits);
+    if(alphaBits <= 0)
+        g_logger.fatal("OpenGL visual doesn't have an alpha buffer");
+
     selectPainterEngine(m_prefferedPainterEngine);
     m_emptyTexture = TexturePtr(new Texture);
 }

src/framework/graphics/painterogl2_shadersources.h

@@ -34,7 +34,7 @@ static const std::string glslMainWithTexCoordsVertexShader = "\n\
     void main()\n\
     {\n\
         gl_Position = calculatePosition();\n\
-        texCoord = textureMatrix * vec3(a_texCoord,1);\n\
+        texCoord = (textureMatrix * vec3(a_texCoord,1)).xy;\n\
     }\n";
 
 static std::string glslPositionOnlyVertexShader = "\n\

src/framework/platform/win32window.cpp

@@ -302,7 +302,7 @@ void WIN32Window::internalChooseGLVisual()
                                          1,
                                          PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
                                          PFD_TYPE_RGBA,
-                                         24,                         // Select Our Color Depth
+                                         32,                         // Select Our Color Depth
                                          8, 0, 8, 0, 8, 0,           // Color Bits Ignored
                                          8,                          // Alpha Buffer Bits
                                          0,                          // Shift Bit Ignored

src/framework/platform/x11window.cpp

@@ -387,7 +387,10 @@ void X11Window::internalChooseGLVisual()
     static int attrList[] = {
         GLX_RENDER_TYPE, GLX_RGBA_BIT,
         GLX_DOUBLEBUFFER, True,
-        GLX_ALPHA_SIZE, 1,
+        GLX_RED_SIZE, 8,
+        GLX_GREEN_SIZE, 8,
+        GLX_BLUE_SIZE, 8,
+        GLX_ALPHA_SIZE, 8,
         None
     };
 

src/framework/ui/uitextedit.cpp

@@ -26,6 +26,7 @@
 #include <framework/platform/platformwindow.h>
 #include <framework/core/clock.h>
 #include <framework/otml/otmlnode.h>
+#include <framework/application.h>
 
 UITextEdit::UITextEdit()
 {
@@ -252,6 +253,7 @@ void UITextEdit::setCursorPos(int pos)
         else
             m_cursorPos = pos;
         update();
+        g_app->repaint();
     }
 }
 
@@ -514,4 +516,5 @@ bool UITextEdit::onMousePress(const Point& mousePos, Fw::MouseButton button)
 void UITextEdit::blinkCursor()
 {
     m_cursorTicks = g_clock.millis();
+    g_app->repaint();
 }

src/framework/ui/uiwidget.cpp

@@ -811,7 +811,6 @@ bool UIWidget::setRect(const Rect& rect)
     if(rect == oldRect)
         return false;
 
-    g_app->repaint();
     m_rect = rect;
 
     // updates own layout
@@ -1353,6 +1352,8 @@ void UIWidget::onStyleApply(const std::string& styleName, const OTMLNodePtr& sty
     parseBaseStyle(styleNode);
     parseImageStyle(styleNode);
     parseTextStyle(styleNode);
+
+    g_app->repaint();
 }
 
 void UIWidget::onGeometryChange(const Rect& oldRect, const Rect& newRect)
@@ -1367,6 +1368,8 @@ void UIWidget::onGeometryChange(const Rect& oldRect, const Rect& newRect)
     }
 
     callLuaField("onGeometryChange", oldRect, newRect);
+
+    g_app->repaint();
 }
 
 void UIWidget::onLayoutUpdate()

src/framework/ui/uiwidgettext.cpp

@@ -25,6 +25,7 @@
 #include <framework/graphics/fontmanager.h>
 #include <framework/graphics/painter.h>
 #include <framework/graphics/framebuffer.h>
+#include <framework/application.h>
 
 void UIWidget::initText()
 {
@@ -93,6 +94,7 @@ void UIWidget::drawText(const Rect& screenCoords)
 
 void UIWidget::onTextChange(const std::string& text, const std::string& oldText)
 {
+    g_app->repaint();
     callLuaField("onTextChange", text, oldText);
 }