move render stuff to graphics

src/framework/color.h

@@ -32,11 +32,6 @@ typedef uint32 RGBA;
 class Color
 {
 public:
-    enum {
-        white = 0xFFFFFFFF,
-        pink = 0xFF00FFFF
-    };
-
     inline Color() : color(0) { }
     inline Color(uint8 r, uint8 g, uint8 b, uint8 a = 0xFF) : color(((r & 0xff)<<24) | ((g & 0xff)<<16) | ((b & 0xff)<<8) | (a & 0xff)) { }
     inline Color(const Color& other) : color(other.color) { }

src/framework/font.cpp

@@ -27,18 +27,11 @@
 #include "textures.h"
 #include "graphics.h"
 
-#include <GL/gl.h>
-#include <GL/glu.h>
-#include <GL/glext.h>
-
 Font::Font() :
     m_lineHeight(14),
     m_cursorSize(14),
-    m_color(Color::white),
+    m_color(0xFFFFFFFF)
-    m_firstGlyph(32),
-    m_numHorizontalGlyphs(16)
 {
-    bzero(m_glyphWidths, sizeof(m_glyphWidths));
 }
 
 bool Font::load(const std::string& file)
@@ -57,6 +50,10 @@ bool Font::load(const std::string& file)
     std::istringstream fin(fileContents);
 
     std::string textureName;
+    int numHorizontalGlyphs;
+    int firstGlyph;
+    Size glyphSize;
+    Size textureSize;
 
     try {
         YAML::Parser parser(fin);
@@ -67,43 +64,48 @@ bool Font::load(const std::string& file)
         doc["line height"] >> m_lineHeight;
         doc["cursor size"] >> m_cursorSize;
         doc["color"] >> m_color;
-        doc["first glyph"] >> m_firstGlyph;
+        doc["first glyph"] >> firstGlyph;
+        doc["image glyph size"] >> glyphSize;
         doc["image"] >> textureName;
-        doc["image glyph size"] >> m_glyphSize;
+
+        m_texture = g_textures.get("fonts/" + textureName);
+        if(!m_texture) {
+            error("Failed to load image for font \"%s\"", file.c_str());
+            return false;
+        }
+
+        textureSize = m_texture->getSize();
+        numHorizontalGlyphs = textureSize.width() / glyphSize.width();
 
         const YAML::Node& widthsNode = doc["glyph widths"];
         for(auto it = widthsNode.begin(); it != widthsNode.end(); ++it) {
-            int id, width;
+            int glyph, glyphWidth;
-            it.first() >> id;
+            it.first() >> glyph;
-            it.second() >> width;
+            it.second() >> glyphWidth;
-            m_glyphWidths[id] = width;
+
+            // calculate glyph texture coords
+            m_glyphsTextureCoords[glyph].setRect(((glyph - firstGlyph) % numHorizontalGlyphs) * glyphSize.width(),
+                                                 ((glyph - firstGlyph) / numHorizontalGlyphs) * glyphSize.height(),
+                                                 glyphWidth,
+                                                 glyphSize.height());
+
+            // store glyph size
+            m_glyphsSize[glyph].setHeight(glyphSize.height());
+            m_glyphsSize[glyph].setWidth(glyphWidth);
         }
     } catch (YAML::ParserException& e) {
         error("Malformed font file \"%s\"", file.c_str());
         return false;
     }
 
-    m_texture = g_textures.get("fonts/" + textureName);
-    m_numHorizontalGlyphs = m_texture->getSize().width() / m_glyphSize.width();
-
-    if(!m_texture) {
-        error("Failed to load image for font \"%s\"", file.c_str());
-        return false;
-    }
-
     return true;
 }
 
 void Font::renderText(const Point& pos, const std::string& text)
 {
-    // bind font texture
+    // begin texture rendering
-    glBindTexture(GL_TEXTURE_2D, m_texture->getTextureId());
+    g_graphics.setColor(m_color);
-
+    g_graphics._beginTextureRender(m_texture.get());
-    // set font color
-    glColor4ubv(m_color.rgbaPtr());
-
-    // begin render
-    glBegin(GL_QUADS);
 
     Point currentPos = pos;
     const Size& screenSize = g_graphics.getScreenSize();
@@ -112,9 +114,7 @@ void Font::renderText(const Point& pos, const std::string& text)
     for(int i = 0; i < textLenght; ++i) {
         int c = (int)text[i];
 
-        // check if is visible
+        // break rendering if the Y pos is below the screen
-        if(currentPos.x >= screenSize.width())
-            continue;
         if(currentPos.y >= screenSize.height())
             break;
 
@@ -123,45 +123,28 @@ void Font::renderText(const Point& pos, const std::string& text)
             currentPos.y += m_lineHeight;
             currentPos.x = pos.x;
         }
-        // text eof
+        // render glyph
-        else if(c == '\0') {
+        else {
-            break;
+            // render online if is visible on screen
-        }
+            if(currentPos.x < screenSize.width())
-        // normal glyph
+                currentPos.x += renderGlyph(currentPos, c);
-        else if(c >= m_firstGlyph) {
-            currentPos.x += renderGlyph(currentPos, c);
         }
     }
 
-    // end font render
+    // end texture redering
-    glEnd();
+    g_graphics._endTextureRender();
+    g_graphics.resetColor();
 }
 
 int Font::renderGlyph(const Point& pos, int glyph)
 {
-    // get glyph width
+    // don't render invalid glyphs
-    int glyphWidth = m_glyphWidths[glyph];
+    if(glyph < 32)
-
+        return 0;
-    // calculate glyph coords on texture font
-    const Size& textureSize = m_texture->getSize();
-    int glyphTexCoordX = ((glyph - m_firstGlyph) % m_numHorizontalGlyphs) * m_glyphSize.width();
-    int glyphTexCoordY = ((glyph - m_firstGlyph) / m_numHorizontalGlyphs) * m_glyphSize.height();
-    float textureRight = (float)(glyphTexCoordX + glyphWidth) / textureSize.width();
-    float textureBottom = (float)(glyphTexCoordY + m_glyphSize.height()) / textureSize.height();
-    float textureTop = (float)(glyphTexCoordY) / textureSize.height();
-    float textureLeft = (float)(glyphTexCoordX) / textureSize.width();
-
-    // calculate glyph coords on screen
-    int right = pos.x + glyphWidth;
-    int bottom = pos.y + m_glyphSize.height();
-    int top = pos.y;
-    int left = pos.x;
 
     // render glyph
-    glTexCoord2f(textureLeft,  textureTop);    glVertex2i(left,  top);
+    Rect screenCoords(pos, m_glyphsSize[glyph]);
-    glTexCoord2f(textureLeft,  textureBottom); glVertex2i(left,  bottom);
+    g_graphics._drawTexturedRect(screenCoords, m_glyphsTextureCoords[glyph], m_texture->getSize());
-    glTexCoord2f(textureRight, textureBottom); glVertex2i(right, bottom);
-    glTexCoord2f(textureRight, textureTop);    glVertex2i(right, top);
 
-    return glyphWidth;
+    return m_glyphsSize[glyph].width();
 }

src/framework/font.h

@@ -28,6 +28,7 @@
 #include "prerequisites.h"
 #include "color.h"
 #include "texture.h"
+#include "rect.h"
 
 class Font
 {
@@ -67,11 +68,8 @@ private:
     int m_cursorSize;
     Color m_color;
     TexturePtr m_texture;
-    Size m_textureSize;
+    Rect m_glyphsTextureCoords[256];
-    Size m_glyphSize;
+    Size m_glyphsSize[256];
-    int m_firstGlyph;
-    int m_glyphWidths[256];
-    int m_numHorizontalGlyphs;
 };
 
 #endif // FONT_H

src/framework/graphics.cpp

@@ -125,7 +125,37 @@ void Graphics::endRender()
 
 }
 
+
+void Graphics::setColor(const Color& color)
+{
+    glColor4ubv(color.rgbaPtr());
+}
+
+void Graphics::resetColor()
+{
+    glColor4ub(0xFF, 0xFF, 0xFF, 0xFF);
+}
+
+void Graphics::_beginTextureRender(const Texture *texture)
+{
+    glBindTexture(GL_TEXTURE_2D, texture->getTextureId());
+    glBegin(GL_QUADS);
+}
+
+void Graphics::_endTextureRender()
+{
+    glEnd();
+}
+
 void Graphics::drawTexturedRect(const Rect& screenCoords, const Texture *texture, const Rect& textureCoords)
+{
+    glBindTexture(GL_TEXTURE_2D, texture->getTextureId());
+    glBegin(GL_QUADS);
+    _drawTexturedRect(screenCoords, textureCoords, texture->getSize());
+    glEnd();
+}
+
+void Graphics::_drawTexturedRect(const Rect& screenCoords, const Rect& textureCoords, const Size& textureSize)
 {
     // rect correction for opengl
     int right = screenCoords.right() + 1;
@@ -139,20 +169,16 @@ void Graphics::drawTexturedRect(const Rect& screenCoords, const Texture *texture
     float textureLeft = 1.0f;
 
     if(!textureCoords.isEmpty()) {
-        const Size& textureSize = texture->getSize();
         textureRight = (float)(textureCoords.right() + 1) / textureSize.width();
         textureBottom = (float)(textureCoords.bottom() + 1) / textureSize.height();
         textureTop = (float)textureCoords.top() / textureSize.height();
         textureLeft = (float)textureCoords.left() / textureSize.width();
     }
 
-    glBindTexture(GL_TEXTURE_2D, texture->getTextureId());
+    glTexCoord2f(textureLeft,  textureTop);    glVertex2i(left,  top);
-    glBegin(GL_QUADS);
+    glTexCoord2f(textureLeft,  textureBottom); glVertex2i(left,  bottom);
-        glTexCoord2f(textureLeft,  textureTop);    glVertex2i(left,  top);
+    glTexCoord2f(textureRight, textureBottom); glVertex2i(right, bottom);
-        glTexCoord2f(textureLeft,  textureBottom); glVertex2i(left,  bottom);
+    glTexCoord2f(textureRight, textureTop);    glVertex2i(right, top);
-        glTexCoord2f(textureRight, textureBottom); glVertex2i(right, bottom);
-        glTexCoord2f(textureRight, textureTop);    glVertex2i(right, top);
-    glEnd();
 }
 
 void Graphics::drawColoredRect(const Rect& screenCoords, const Color& color)

src/framework/graphics.h

@@ -57,10 +57,19 @@ public:
 
     const Size& getScreenSize() const { return m_screenSize; }
 
+    void setColor(const Color& color);
+    void resetColor();
+
+    // high level rendering
     void drawTexturedRect(const Rect& screenCoords, const Texture *texture, const Rect& texCoords = Rect());
     void drawColoredRect(const Rect& screenCoords, const Color& color);
     void drawBoundingRect(const Rect& screenCoords, const Color& color, int innerLineWidth);
 
+    // lower level rendering
+    void _beginTextureRender(const Texture *texture);
+    void _drawTexturedRect(const Rect& screenCoords, const Rect& textureCoords, const Size& textureSize);
+    void _endTextureRender();
+
 private:
     Size m_screenSize;
 };

src/framework/rect.h

@@ -44,7 +44,7 @@ public:
     inline TRect(const TPoint<T>& topLeft, const TPoint<T>& bottomRight) : x1(topLeft.x), y1(topLeft.y), x2(bottomRight.x), y2(bottomRight.y) { }
     inline TRect(const TRect<T>& other) : x1(other.x1), y1(other.y1), x2(other.x2), y2(other.y2) { }
     inline TRect(T x, T y, const TSize<T>& size) : x1(x), y1(y), x2(x+size.width()-1), y2(y+size.height()-1) { }
-    inline TRect(const TPoint<T>& topLeft, const TSize<T>& size) : x1(topLeft.x), y1(topLeft.y), x2(x+size.width()-1), y2(y+size.height()-1) { }
+    inline TRect(const TPoint<T>& topLeft, const TSize<T>& size) : x1(topLeft.x), y1(topLeft.y), x2(x1+size.width()-1), y2(y1+size.height()-1) { }
 
     inline bool isNull() const { return x2 == x1 - 1 && y2 == y1 - 1; }
     inline bool isEmpty() const { return x1 > x2 || y1 > y2; }