diff --git a/plugins/rendermax/CMakeLists.txt b/plugins/rendermax/CMakeLists.txt
index 7b9d7bdf7..c781bde48 100644
--- a/plugins/rendermax/CMakeLists.txt
+++ b/plugins/rendermax/CMakeLists.txt
@@ -1,7 +1,5 @@
 PROJECT (rendermax)
-Find_Package(SDL REQUIRED)
-find_package(OpenGL REQUIRED)
-find_package(GLUT REQUIRED)
+
 # A list of source files
 SET(PROJECT_SRCS
     rendermax.cpp
@@ -14,23 +12,19 @@ SET_SOURCE_FILES_PROPERTIES( ${PROJECT_HDRS} PROPERTIES HEADER_FILE_ONLY TRUE)
 
 # mash them together (headers are marked as headers and nothing will try to compile them)
 LIST(APPEND PROJECT_SRCS ${PROJECT_HDRS})
-include_directories(${SDL_INCLUDE_DIR})
+
 
 #linux
 IF(UNIX)
     add_definitions(-DLINUX_BUILD)
     SET(PROJECT_LIBS
         # add any extra linux libs here
-		${SDL_LIBRARY}
-		opengl
         ${PROJECT_LIBS}
     )
 # windows
 ELSE(UNIX)
     SET(PROJECT_LIBS
         # add any extra windows libs here
-		${SDL_LIBRARY}
-		opengl
         ${PROJECT_LIBS}
         $(NOINHERIT)
     )
diff --git a/plugins/rendermax/renderer_opengl.hpp b/plugins/rendermax/renderer_opengl.hpp
index 60c912d05..7c4fea2fa 100644
--- a/plugins/rendermax/renderer_opengl.hpp
+++ b/plugins/rendermax/renderer_opengl.hpp
@@ -6,653 +6,179 @@
 #include "df/enabler.h"
 #include "df/zoom_commands.h"
 #include "df/texture_handler.h"
+#include "df/graphic.h"
 
 using df::renderer;
 using df::init;
 using df::enabler;
 
-#include "SDL.h"
-
-#ifdef __APPLE__
-#include <OpenGL/gl.h>
-#include <OpenGL/glu.h>
-//#include <GLUT/glut.h>
-#else
-#ifdef _WIN32
-#include <windows.h>
-#endif
-#include <GL/gl.h>
-#include <GL/glu.h>
-//#include <GL/glut.h>
-#endif
-bool isFullscreen()
+struct old_opengl:public renderer
 {
-    return df::global::enabler->fullscreen;
-}
-
-template<typename L, typename R>
-struct Either {
-    bool isL;
-    union {
-        L left;
-        R right;
-    };
-    Either(const L &l) {
-        isL = true;
-        left = l;
-    }
-    Either(const R &r) {
-        isL = false;
-        right = r;
-    }
+    void* sdlSurface;
+    int32_t dispx,dispy;
+    float *vertexes, *fg, *bg, *tex;
+    int32_t zoom_steps,forced_steps,natural_w,natural_h;
+    int32_t off_x,off_y,size_x,size_y;
 };
-
-// STANDARD
-class renderer_opengl : public renderer {
-public:
-  virtual bool uses_opengl() { return true; }
-  
-protected:
-  SDL_Surface *screen;
-
-  int dispx, dispy; // Cache of the current font size
-  
-  bool init_video(int w, int h) {
-    // Get ourselves an opengl-enabled SDL window
-    uint32_t flags = SDL_HWSURFACE | SDL_OPENGL;
-
-    // Set it up for windowed or fullscreen, depending.
-    if (isFullscreen()) { 
-      flags |= SDL_FULLSCREEN;
-    } else {
-      if (!df::global::init->display.flag.is_set(INIT_DISPLAY_FLAG_NOT_RESIZABLE))
-        flags |= SDL_RESIZABLE;
-    }
-
-    // Setup OpenGL attributes
-    SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, init.window.flag.has_flag(INIT_WINDOW_FLAG_VSYNC_ON));
-    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,
-                        init.display.flag.has_flag(INIT_DISPLAY_FLAG_SINGLE_BUFFER) ? 0 : 1);
-
-    // (Re)create the window
-    screen = SDL_SetVideoMode(w, h, 32, flags);
-
-    if (!screen) return false;
-
-    // Test double-buffering status
-    int test;
-    SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &test);
-    if (test != ((init.display.flag.has_flag(INIT_DISPLAY_FLAG_SINGLE_BUFFER)) ? 0 : 1)) {
-      if (isFullscreen());
-        //errorlog << "Requested single-buffering not available\n" << flush;
-      else
-        report_error("OpenGL", "Requested single-buffering not available");
-    }
-
-    // (Re)initialize GLEW. Technically only needs to be done once on
-    // linux, but on windows forgetting will cause crashes.
-    glewInit();
-
-    // Set the viewport and clear
-    glViewport(0, 0, screen->w, screen->h);
-    glClear(GL_COLOR_BUFFER_BIT);
-
-    return true;
-  }
-
-  // Vertexes, foreground color, background color, texture coordinates
-  GLfloat *vertexes, *fg, *bg, *tex;
-
-  void write_tile_vertexes(GLfloat x, GLfloat y, GLfloat *vertex) {
-    vertex[0]  = x;   // Upper left
-    vertex[1]  = y;
-    vertex[2]  = x+1; // Upper right
-    vertex[3]  = y;
-    vertex[4]  = x;   // Lower left
-    vertex[5]  = y+1;
-    vertex[6]  = x;   // Lower left again (triangle 2)
-    vertex[7]  = y+1;
-    vertex[8]  = x+1; // Upper right
-    vertex[9]  = y;
-    vertex[10] = x+1; // Lower right
-    vertex[11] = y+1;
-  }
-
-  virtual void allocate(int tiles) {
-    vertexes = static_cast<GLfloat*>(realloc(vertexes, sizeof(GLfloat) * tiles * 2 * 6));
-    assert(vertexes);
-    fg = static_cast<GLfloat*>(realloc(fg, sizeof(GLfloat) * tiles * 4 * 6));
-    assert(fg);
-    bg = static_cast<GLfloat*>(realloc(bg, sizeof(GLfloat) * tiles * 4 * 6));
-    assert(bg);
-    tex = static_cast<GLfloat*>(realloc(tex, sizeof(GLfloat) * tiles * 2 * 6));
-    assert(tex);
-
-    glEnableClientState(GL_VERTEX_ARRAY);
-    glVertexPointer(2, GL_FLOAT, 0, vertexes);
-  }
-  
-  virtual void init_opengl() {
-    //enabler.textures.upload_textures();
-  }
-
-  virtual void uninit_opengl() {
-    //enabler.textures.remove_uploaded_textures();
-  }
-  
-  virtual void draw(int vertex_count) {
-    // Render the background colors
-    glDisable(GL_TEXTURE_2D);
-    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-    glDisable(GL_BLEND);
-    glDisable(GL_ALPHA_TEST);
-    glColorPointer(4, GL_FLOAT, 0, bg);
-    glDrawArrays(GL_TRIANGLES, 0, vertex_count);
-    // Render the foreground, colors and textures both
-    glEnable(GL_ALPHA_TEST);
-    glAlphaFunc(GL_NOTEQUAL, 0);
-    glEnable(GL_TEXTURE_2D);
-    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-    glEnable(GL_BLEND);
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-    glTexCoordPointer(2, GL_FLOAT, 0, tex);
-    glColorPointer(4, GL_FLOAT, 0, fg);
-    glDrawArrays(GL_TRIANGLES, 0, vertex_count);
-    
-    printGLError();
-  }
-
-  void write_tile_arrays(int x, int y, GLfloat *fg, GLfloat *bg, GLfloat *tex) {
-    Either<texture_fullid,texture_ttfid> id = screen_to_texid(x, y);
-    if (id.isL) {          // An ordinary tile
-      const gl_texpos *txt = df::global::enabler->textures.gl_texpos;
-      // TODO: Only bother to set the one that's actually read in flat-shading mode
-      // And set flat-shading mode.
-      for (int i = 0; i < 6; i++) {
-        *(fg++) = id.left.r;
-        *(fg++) = id.left.g;
-        *(fg++) = id.left.b;
-        *(fg++) = 1;
-        
-        *(bg++) = id.left.br;
-        *(bg++) = id.left.bg;
-        *(bg++) = id.left.bb;
-        *(bg++) = 1;
-      }
-      // Set texture coordinates
-      *(tex++) = txt[id.left.texpos].left;   // Upper left
-      *(tex++) = txt[id.left.texpos].bottom;
-      *(tex++) = txt[id.left.texpos].right;  // Upper right
-      *(tex++) = txt[id.left.texpos].bottom;
-      *(tex++) = txt[id.left.texpos].left;   // Lower left
-      *(tex++) = txt[id.left.texpos].top;
-      
-      *(tex++) = txt[id.left.texpos].left;   // Lower left
-      *(tex++) = txt[id.left.texpos].top;
-      *(tex++) = txt[id.left.texpos].right;  // Upper right
-      *(tex++) = txt[id.left.texpos].bottom;
-      *(tex++) = txt[id.left.texpos].right;  // Lower right
-      *(tex++) = txt[id.left.texpos].top;
-    } else {
-      // TODO
-    }
-  }
-  
-public:
-  void update_tile(int x, int y) {
-    const int tile = x*gps.dimy + y;
-    // Update the arrays
-    GLfloat *fg  = this->fg + tile * 4 * 6;
-    GLfloat *bg  = this->bg + tile * 4 * 6;
-    GLfloat *tex = this->tex + tile * 2 * 6;
-    write_tile_arrays(x, y, fg, bg, tex);
-  }
-
-  void update_all() {
-    glClear(GL_COLOR_BUFFER_BIT);
-    for (int x = 0; x < gps.dimx; x++)
-      for (int y = 0; y < gps.dimy; y++)
-        update_tile(x, y);
-  }
-  
-  void render() {
-    draw(gps.dimx*gps.dimy*6);
-    if (init.display.flag.has_flag(INIT_DISPLAY_FLAG_ARB_SYNC) && GL_ARB_sync) {
-      assert(df::global::enabler->sync == NULL);
-      df::global::enabler->sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
-    }
-    SDL_GL_SwapBuffers();
-  }
-
-  renderer_opengl() {
-    // Init member variables so realloc'll work
-    screen   = NULL;
-    vertexes = NULL;
-    fg       = NULL;
-    bg       = NULL;
-    tex      = NULL;
-    zoom_steps = forced_steps = 0;
-    
-    // Disable key repeat
-    SDL_EnableKeyRepeat(0, 0);
-    // Set window title/icon.
-    SDL_WM_SetCaption(GAME_TITLE_STRING, NULL);
-    SDL_Surface *icon = IMG_Load("data/art/icon.png");
-    if (icon != NULL) {
-      SDL_WM_SetIcon(icon, NULL);
-      // The icon's surface doesn't get used past this point.
-      SDL_FreeSurface(icon); 
-    }
-    
-    // Find the current desktop resolution if fullscreen resolution is auto
-    if (init.display.desired_fullscreen_width  == 0 ||
-        init.display.desired_fullscreen_height == 0) {
-      const struct SDL_VideoInfo *info = SDL_GetVideoInfo();
-      init.display.desired_fullscreen_width = info->current_w;
-      init.display.desired_fullscreen_height = info->current_h;
-    }
-
-    // Initialize our window
-    bool worked = init_video(isFullscreen() ?
-                             init.display.desired_fullscreen_width :
-                             init.display.desired_windowed_width,
-                             isFullscreen() ?
-                             init.display.desired_fullscreen_height :
-                             init.display.desired_windowed_height);
-
-    // Fallback to windowed mode if fullscreen fails
-    if (!worked && isFullscreen()) {
-      df::global::enabler->fullscreen = false;
-      report_error("SDL initialization failure, trying windowed mode", SDL_GetError());
-      worked = init_video(init.display.desired_windowed_width,
-                          init.display.desired_windowed_height);
-    }
-    // Quit if windowed fails
-    if (!worked) {
-      report_error("SDL initialization failure", SDL_GetError());
-      exit(EXIT_FAILURE);
-    }
-
-    // Initialize opengl
-    init_opengl();
-  }
-
-  virtual ~renderer_opengl() {
-    free(vertexes);
-    free(fg);
-    free(bg);
-    free(tex);
-  }
-
-  int zoom_steps, forced_steps;
-  int natural_w, natural_h; // How large our view would be if it wasn't zoomed
-
-  void zoom(df::zoom_commands cmd) {
-    pair<int,int> before = compute_zoom(true);
-    int before_steps = zoom_steps;
-    switch (cmd) {
-    case zoom_in:    zoom_steps -= init.input.zoom_speed; break;
-    case zoom_out:   zoom_steps += init.input.zoom_speed; break;
-    case zoom_reset:
-      zoom_steps = 0;
-    case zoom_resetgrid:
-      compute_forced_zoom();
-      break;
-    }
-    pair<int,int> after = compute_zoom(true);
-    if (after == before && (cmd == zoom_in || cmd == zoom_out))
-      zoom_steps = before_steps;
-    else
-      reshape(after);
-  }
-
-  void compute_forced_zoom() {
-    forced_steps = 0;
-    pair<int,int> zoomed = compute_zoom();
-    while (zoomed.first < MIN_GRID_X || zoomed.second < MIN_GRID_Y) {
-      forced_steps++;
-      zoomed = compute_zoom();
-    }
-    while (zoomed.first > MAX_GRID_X || zoomed.second > MAX_GRID_Y) {
-      forced_steps--;
-      zoomed = compute_zoom();
-    }
-  }
-  
-  pair<int,int> compute_zoom(bool clamp = false) {
-    const int dispx = isFullscreen() ?
-      init.font.large_font_dispx :
-      init.font.small_font_dispx;
-    const int dispy = isFullscreen() ?
-      init.font.large_font_dispy :
-      init.font.small_font_dispy;
-    int w, h;
-    if (dispx < dispy) {
-      w = natural_w + zoom_steps + forced_steps;
-      h = double(natural_h) * (double(w) / double(natural_w));
-    } else {
-      h = natural_h + zoom_steps + forced_steps;
-      w = double(natural_w) * (double(h) / double(natural_h));
+struct renderer_wrap : public renderer {
+private:
+    void set_to_null() {
+        screen = NULL;
+        screentexpos = NULL;
+        screentexpos_addcolor = NULL;
+        screentexpos_grayscale = NULL;
+        screentexpos_cf = NULL;
+        screentexpos_cbr = NULL;
+        screen_old = NULL;
+        screentexpos_old = NULL;
+        screentexpos_addcolor_old = NULL;
+        screentexpos_grayscale_old = NULL;
+        screentexpos_cf_old = NULL;
+        screentexpos_cbr_old = NULL;
+    }
+
+    void copy_from_inner() {
+        screen = parent->screen;
+        screentexpos = parent->screentexpos;
+        screentexpos_addcolor = parent->screentexpos_addcolor;
+        screentexpos_grayscale = parent->screentexpos_grayscale;
+        screentexpos_cf = parent->screentexpos_cf;
+        screentexpos_cbr = parent->screentexpos_cbr;
+        screen_old = parent->screen_old;
+        screentexpos_old = parent->screentexpos_old;
+        screentexpos_addcolor_old = parent->screentexpos_addcolor_old;
+        screentexpos_grayscale_old = parent->screentexpos_grayscale_old;
+        screentexpos_cf_old = parent->screentexpos_cf_old;
+        screentexpos_cbr_old = parent->screentexpos_cbr_old;
+    }
+
+    void copy_to_inner() {
+        parent->screen = screen;
+        parent->screentexpos = screentexpos;
+        parent->screentexpos_addcolor = screentexpos_addcolor;
+        parent->screentexpos_grayscale = screentexpos_grayscale;
+        parent->screentexpos_cf = screentexpos_cf;
+        parent->screentexpos_cbr = screentexpos_cbr;
+        parent->screen_old = screen_old;
+        parent->screentexpos_old = screentexpos_old;
+        parent->screentexpos_addcolor_old = screentexpos_addcolor_old;
+        parent->screentexpos_grayscale_old = screentexpos_grayscale_old;
+        parent->screentexpos_cf_old = screentexpos_cf_old;
+        parent->screentexpos_cbr_old = screentexpos_cbr_old;
     }
-    if (clamp) {
-      w = MIN(MAX(w, MIN_GRID_X), MAX_GRID_X);
-      h = MIN(MAX(h, MIN_GRID_Y), MAX_GRID_Y);
-    }
-    return make_pair(w,h);
-  }
-
-  // Parameters: grid units
-  void reshape(pair<int,int> size) {
-    int w = MIN(MAX(size.first, MIN_GRID_X), MAX_GRID_X);
-    int h = MIN(MAX(size.second, MIN_GRID_Y), MAX_GRID_Y);
-#ifdef DEBUG
-    cout << "Resizing grid to " << w << "x" << h << endl;
-#endif
-    gps_allocate(w, h);
-    reshape_gl();
-  }
-
-  int off_x, off_y, size_x, size_y;
-  
-  bool get_mouse_coords(int &x, int &y) {
-    int mouse_x, mouse_y;
-    SDL_GetMouseState(&mouse_x, &mouse_y);
-    mouse_x -= off_x; mouse_y -= off_y;
-    if (mouse_x < 0 || mouse_y < 0 ||
-        mouse_x >= size_x || mouse_y >= size_y)
-      return false; // Out of bounds
-    x = double(mouse_x) / double(size_x) * double(gps.dimx);
-    y = double(mouse_y) / double(size_y) * double(gps.dimy);
-    return true;
-  }
-
-  virtual void reshape_gl() {
-    // Allocate array memory
-    allocate(gps.dimx * gps.dimy);
-    // Initialize the vertex array
-    int tile = 0;
-    for (GLfloat x = 0; x < gps.dimx; x++)
-      for (GLfloat y = 0; y < gps.dimy; y++, tile++)
-        write_tile_vertexes(x, y, vertexes + 6*2*tile);
-    // Setup invariant state
-    glEnableClientState(GL_COLOR_ARRAY);
-    /// Set up our coordinate system
-    if (forced_steps + zoom_steps == 0 &&
-        init.display.flag.has_flag(INIT_DISPLAY_FLAG_BLACK_SPACE)) {
-      size_x = gps.dimx * dispx;
-      size_y = gps.dimy * dispy;
-      off_x = (screen->w - size_x) / 2;
-      off_y = (screen->h - size_y) / 2;
-    } else {
-      // If we're zooming (or just not using black space), we use the
-      // entire window.
-      size_x = screen->w;
-      size_y = screen->h;
-      off_x = off_y = 0;
-    }
-    glViewport(off_x, off_y, size_x, size_y);
-    glMatrixMode(GL_MODELVIEW);
-    glLoadIdentity();
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    gluOrtho2D(0, gps.dimx, gps.dimy, 0);
-  }
-
-  // Parameters: window size
-  void resize(int w, int h) {
-    // (Re)calculate grid-size
-    dispx = isFullscreen() ?
-      init.font.large_font_dispx :
-      init.font.small_font_dispx;
-    dispy = isFullscreen() ?
-      init.font.large_font_dispy :
-      init.font.small_font_dispy;
-    natural_w = MAX(w / dispx,1);
-    natural_h = MAX(h / dispy,1);
-    // Compute forced_steps so we satisfy our grid-size limits
-    compute_forced_zoom();
-    // Force a full display cycle
-    gps.force_full_display_count = 1;
-    df::global::enabler->flag |= ENABLERFLAG_RENDER;
-    // Reinitialize the video
-    uninit_opengl();
-    init_video(w, h);
-    init_opengl();
-    // Only reshape if we're free to pick grid size
-    if (df::global::enabler->overridden_grid_sizes.size() == 0)
-      reshape(compute_zoom());
-  }
-
-  // Parameters: grid size
-  void grid_resize(int w, int h) {
-    reshape(make_pair(w, h));
-  }
-
 public:
-  void set_fullscreen() {
-    if (isFullscreen()) {
-      init.display.desired_windowed_width = screen->w;
-      init.display.desired_windowed_height = screen->h;
-      resize(init.display.desired_fullscreen_width,
-             init.display.desired_fullscreen_height);
-    } else {
-      resize(init.display.desired_windowed_width, init.display.desired_windowed_height);
+    renderer_wrap(renderer* parent):parent(parent)
+    {
+        copy_from_inner();
     }
-  }
-};
+    virtual void update_tile(int32_t x, int32_t y) { 
 
-// Specialization for PARTIAL:0
-class renderer_once : public renderer_opengl {
-  int tile_count;
-  
+        copy_to_inner();
+        parent->update_tile(x,y);
+    };
+    virtual void update_all() { 
+        copy_to_inner();
+        parent->update_all();
+    };
+    virtual void render() { 
+        copy_to_inner();
+        parent->render();
+    };
+    virtual void set_fullscreen() { 
+        copy_to_inner();
+        parent->set_fullscreen();
+    };
+    virtual void zoom(df::zoom_commands z) { 
+        copy_to_inner();
+        parent->zoom(z);
+    };
+    virtual void resize(int32_t w, int32_t h) { 
+        copy_to_inner();
+        parent->resize(w,h);
+        copy_from_inner();
+    };
+    virtual void grid_resize(int32_t w, int32_t h) { 
+        copy_to_inner();
+        parent->grid_resize(w,h);
+        copy_from_inner();
+    };
+    virtual ~renderer_wrap() { 
+        df::global::enabler->renderer=parent;
+    };
+    virtual bool get_mouse_coords(int32_t* x, int32_t* y) { 
+        return parent->get_mouse_coords(x,y);
+    };
+    virtual bool uses_opengl() { 
+        return parent->uses_opengl();
+    };
 protected:
-  void update_tile(int x, int y) {
-    write_tile_vertexes(x, y, vertexes + tile_count * 6 * 2);
-    write_tile_arrays(x, y,
-                      fg + tile_count * 6 * 4,
-                      bg + tile_count * 6 * 4,
-                      tex + tile_count * 6 * 2);
-    tile_count++;
-  }
-
-  void draw(int dummy) {
-    renderer_opengl::draw(tile_count*6);
-    tile_count = 0;
-  }
-
-public:
-  renderer_once() {
-    tile_count = 0;
-  }
+    renderer* parent;
 };
-
-// PARTIAL:N
-class renderer_partial : public renderer_opengl {
-  int buffersz;
-  list<int> erasz; // Previous eras
-  int current_erasz; // And the current one
-  int sum_erasz;
-  int head, tail; // First unused tile, first used tile respectively
-  int redraw_count; // Number of eras to max out at
-
-  void update_tile(int x, int y) {
-    write_tile_vertexes(x, y, vertexes + head * 6 * 2);
-    write_tile_arrays(x, y,
-                      fg + head * 6 * 4,
-                      bg + head * 6 * 4,
-                      tex + head * 6 * 2);
-    head = (head + 1) % buffersz;
-    current_erasz++; sum_erasz++;
-    if (head == tail) {
-      //gamelog << "Expanding partial-printing buffer" << endl;
-      // Buffer is full, expand it.
-      renderer_opengl::allocate(buffersz * 2);
-      // Move the tail to the end of the newly allocated space
-      tail += buffersz;
-      memmove(vertexes + tail * 6 * 2, vertexes + head * 6 * 2, sizeof(GLfloat) * 6 * 2 * (buffersz - head));
-      memmove(fg + tail * 6 * 4, fg + head * 6 * 4, sizeof(GLfloat) * 6 * 4 * (buffersz - head));
-      memmove(bg + tail * 6 * 4, fg + head * 6 * 4, sizeof(GLfloat) * 6 * 4 * (buffersz - head));
-      memmove(tex + tail * 6 * 2, fg + head * 6 * 2, sizeof(GLfloat) * 6 * 2 * (buffersz - head));
-      // And finish.
-      buffersz *= 2;
-    }
-  }
-
-  void allocate(int tile_count) {
-    assert(false);
-  }
-  
-  virtual void reshape_gl() {
-    // TODO: This function is duplicate code w/base class reshape_gl
-    // Setup invariant state
-    glEnableClientState(GL_COLOR_ARRAY);
-    /// Set up our coordinate system
-    if (forced_steps + zoom_steps == 0 &&
-        init.display.flag.has_flag(INIT_DISPLAY_FLAG_BLACK_SPACE)) {
-      size_x = gps.dimx * dispx;
-      size_y = gps.dimy * dispy;
-      off_x = (screen->w - size_x) / 2;
-      off_y = (screen->h - size_y) / 2;
-    } else {
-      // If we're zooming (or just not using black space), we use the
-      // entire window.
-      size_x = screen->w;
-      size_y = screen->h;
-      off_x = off_y = 0;
-    }
-    glViewport(off_x, off_y, size_x, size_y);
-    glMatrixMode(GL_MODELVIEW);
-    glLoadIdentity();
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    gluOrtho2D(0, gps.dimx, gps.dimy, 0);
-  }
-
-  void draw_arrays(GLfloat *vertexes, GLfloat *fg, GLfloat *bg, GLfloat *tex, int tile_count) {
-    // Set vertex pointer
-    glVertexPointer(2, GL_FLOAT, 0, vertexes);
-    // Render the background colors
-    glDisable(GL_TEXTURE_2D);
-    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-    glDisable(GL_BLEND);
-    glDisable(GL_ALPHA_TEST);
-    glColorPointer(4, GL_FLOAT, 0, bg);
-    glDrawArrays(GL_TRIANGLES, 0, tile_count * 6);
-    // Render the foreground, colors and textures both
-    glEnable(GL_ALPHA_TEST);
-    glAlphaFunc(GL_NOTEQUAL, 0);
-    glEnable(GL_TEXTURE_2D);
-    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-    glEnable(GL_BLEND);
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-    glColorPointer(4, GL_FLOAT, 0, fg);
-    glTexCoordPointer(2, GL_FLOAT, 0, tex);
-    glDrawArrays(GL_TRIANGLES, 0, tile_count * 6);
-  }
-
-  void draw(int dummy) {
-    if (tail > head) {
-      // We're straddling the end of the array, so have to do this in two steps
-      draw_arrays(vertexes + tail * 6 * 2,
-                  fg + tail * 6 * 4,
-                  bg + tail * 6 * 4,
-                  tex + tail * 6 * 2,
-                  buffersz - tail);
-      draw_arrays(vertexes, fg, bg, tex, head-1);
-    } else {
-      draw_arrays(vertexes + tail * 6 * 2,
-                  fg + tail * 6 * 4,
-                  bg + tail * 6 * 4,
-                  tex + tail * 6 * 2,
-                  sum_erasz);
-    }
-    
-    printGLError();
-    erasz.push_back(current_erasz); current_erasz = 0;
-    if (erasz.size() == redraw_count) {
-      // Right, time to retire the oldest era.
-      tail = (tail + erasz.front()) % buffersz;
-      sum_erasz -= erasz.front();
-      erasz.pop_front();
+struct renderer_trippy : public renderer_wrap {
+private:
+    float rFloat()
+    {
+        return rand()/(float)RAND_MAX;
+    }
+    void colorizeTile(int x,int y)
+    {
+        const int tile = x*(df::global::gps->dimy) + y;
+        old_opengl* p=reinterpret_cast<old_opengl*>(parent);
+        float *fg = p->fg + tile * 4 * 6;
+        float *bg = p->bg + tile * 4 * 6;
+        float *tex = p->tex + tile * 2 * 6;
+        const float val=1/2.0;
+        
+        float r=rFloat()*val - val/2;
+        float g=rFloat()*val - val/2;
+        float b=rFloat()*val - val/2;
+
+        float backr=rFloat()*val - val/2;
+        float backg=rFloat()*val - val/2;
+        float backb=rFloat()*val - val/2;
+        for (int i = 0; i < 6; i++) {
+            *(fg++) += r;
+            *(fg++) += g;
+            *(fg++) += b;
+            *(fg++) = 1;
+
+            *(bg++) += backr;
+            *(bg++) += backg;
+            *(bg++) += backb;
+            *(bg++) = 1;
+        }
     }
-  }
-  
 public:
-  renderer_partial() {
-    redraw_count = init.display.partial_print_count;
-    buffersz = 2048;
-    renderer_opengl::allocate(buffersz);
-    current_erasz = head = tail = sum_erasz = 0;
-  }
-};
-
-class renderer_accum_buffer : public renderer_once {
-  void draw(int vertex_count) {
-    // Copy the previous frame's buffer back in
-    glAccum(GL_RETURN, 1);
-    renderer_once::draw(vertex_count);
-    // Store the screen contents back to the buffer
-    glAccum(GL_LOAD, 1);
-  }
+    renderer_trippy(renderer* parent):renderer_wrap(parent)
+    {
+    }
+    virtual void update_tile(int32_t x, int32_t y) { 
+        renderer_wrap::update_tile(x,y);
+        colorizeTile(x,y);
+    };
+    virtual void update_all() { 
+        renderer_wrap::update_all();
+        for (int x = 0; x < df::global::gps->dimx; x++)
+            for (int y = 0; y < df::global::gps->dimy; y++)
+                colorizeTile(x,y);
+    };
 };
-
-class renderer_framebuffer : public renderer_once {
-  GLuint framebuffer, fb_texture;
-  
-  void init_opengl() {
-    glGenFramebuffersEXT(1, &framebuffer);
-    // Allocate FBO texture memory
-    glGenTextures(1, &fb_texture);
-    glBindTexture(GL_TEXTURE_2D, fb_texture);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
-                 screen->w, screen->h,
-                 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
-    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
-    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
+struct renderer_test : public renderer_wrap {
+private:
     
-    // Bind texture to FBO
-    glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, framebuffer);
-    glFramebufferTexture2DEXT(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
-                              GL_TEXTURE_2D, fb_texture, 0);
-    renderer_once::init_opengl();
-  }
-
-  void uninit_opengl() {
-    renderer_once::uninit_opengl();
-    glDeleteTextures(1, &fb_texture);
-    glDeleteFramebuffersEXT(1, &framebuffer);
-  }
-
-  void draw(int vertex_count) {
-    // Bind the framebuffer
-    glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, framebuffer);
-    glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
-    // Draw
-    renderer_once::draw(vertex_count);
-    // Draw the framebuffer to screen
-    glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
-    glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, framebuffer);
-    glBlitFramebufferEXT(0,0, screen->w, screen->h,
-                         0,0, screen->w, screen->h,
-                         GL_COLOR_BUFFER_BIT, GL_NEAREST);
-    printGLError();
-  }
-};
-
-class renderer_vbo : public renderer_opengl {
-  GLuint vbo; // Vertexes only
-
-  void init_opengl() {
-    renderer_opengl::init_opengl();
-    glGenBuffersARB(1, &vbo);
-    glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
-    glBufferDataARB(GL_ARRAY_BUFFER_ARB, gps.dimx*gps.dimy*6*2*sizeof(GLfloat), vertexes, GL_STATIC_DRAW_ARB);
-    glVertexPointer(2, GL_FLOAT, 0, 0);
-    glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
-  }
-  
-  void uninit_opengl() {
-    glDeleteBuffersARB(1, &vbo);
-    renderer_opengl::uninit_opengl();
-  }
-};
+public:
+    renderer_test(renderer* parent):renderer_wrap(parent)
+    {
+    }
+    virtual void update_tile(int32_t x, int32_t y) { 
+        renderer_wrap::update_tile(x,y);
+        //some sort of mutex or sth?
+        //and then map read
+    };
+    virtual void update_all() { 
+        renderer_wrap::update_all();
+        //some sort of mutex or sth?
+        //and then map read
+        //same stuff for all of them i guess...
+    };
+};
\ No newline at end of file