Turned functions in video_systems.?pp into class VideoSystem
[supertux.git] / src / video / surface.cpp
index 23ff693..c996e51 100644 (file)
@@ -1,12 +1,10 @@
-//  $Id$
-//
 //  SuperTux
 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU General Public License
-//  as published by the Free Software Foundation; either version 2
-//  of the License, or (at your option) any later version.
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
 //
 //  This program is distributed in the hope that it will be useful,
 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
 //  GNU General Public License for more details.
 //
 //  You should have received a copy of the GNU General Public License
-//  along with this program; if not, write to the Free Software
-//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-#include <config.h>
+#include "video/surface.hpp"
 
-#include <cassert>
-#include <iostream>
-#include <algorithm>
-#include <stdexcept>
-#include <sstream>
-#include <math.h>
+#include <config.h>
 
 #include <SDL.h>
-#include <SDL_image.h>
 
-#include "gameconfig.hpp"
-#include "physfs/physfs_sdl.hpp"
-#include "video/surface.hpp"
-#include "video/drawing_context.hpp"
-#include "video/color.hpp"
-#include "image_texture.hpp"
-#include "texture_manager.hpp"
+#include "video/texture.hpp"
+#include "video/video_systems.hpp"
 
-Surface::Surface(const std::string& file)
+std::auto_ptr<Surface>
+Surface::create(const std::string& file)
 {
-  texture = texture_manager->get(file);
-  texture->ref();
-  uv_left = 0;
-  uv_top = 0;
-  uv_right = texture->get_uv_right();
-  uv_bottom = texture->get_uv_bottom();
+  return std::auto_ptr<Surface>(new Surface(file));
+}
 
-  width = texture->get_image_width();
-  height = texture->get_image_height();
+std::auto_ptr<Surface> 
+Surface::create(const std::string& file, const Rect& rect)
+{
+  return std::auto_ptr<Surface>(new Surface(file, rect));
 }
 
-Surface::Surface(const std::string& file, int x, int y, int w, int h)
+Surface::Surface(const std::string& file) :
+  texture(texture_manager->get(file)),
+  surface_data(),
+  rect(0, 0, 
+      Size(texture->get_image_width(),
+           texture->get_image_height())),
+  flipx(false)
 {
-  texture = texture_manager->get(file);
   texture->ref();
-
-  float tex_w = static_cast<float> (texture->get_width());
-  float tex_h = static_cast<float> (texture->get_height());
-  uv_left = static_cast<float>(x) / tex_w;
-  uv_top = static_cast<float>(y) / tex_h;
-  uv_right = static_cast<float>(x+w) / tex_w;
-  uv_bottom = static_cast<float>(y+h) / tex_h;
-
-  width = w;
-  height = h;
+  surface_data = VideoSystem::new_surface_data(*this);
 }
 
-Surface::Surface(const Surface& other)
+Surface::Surface(const std::string& file, const Rect& rect_) :
+  texture(texture_manager->get(file)),
+  surface_data(),
+  rect(rect_),
+  flipx(false)
 {
-  texture = other.texture;
   texture->ref();
+  surface_data = VideoSystem::new_surface_data(*this);
+}
 
-  uv_left = other.uv_left;
-  uv_top = other.uv_top;
-  uv_right = other.uv_right;
-  uv_bottom = other.uv_bottom;
-  width = other.width;
-  height = other.height;
+Surface::Surface(const Surface& rhs) :
+  texture(rhs.texture),
+  surface_data(),
+  rect(rhs.rect),
+  flipx(false)
+{
+  texture->ref();
+  surface_data = VideoSystem::new_surface_data(*this);
 }
 
-const Surface&
-Surface::operator= (const Surface& other)
+const Surface& 
+Surface::operator=(const Surface& rhs)
 {
-  other.texture->ref();
+  rhs.texture->ref();
   texture->unref();
-  texture = other.texture;
-
-  uv_left = other.uv_left;
-  uv_top = other.uv_top;
-  uv_right = other.uv_right;
-  uv_bottom = other.uv_bottom;
-  width = other.width;
-  height = other.height;
-
+  texture = rhs.texture;
+  rect = rhs.rect;
   return *this;
 }
 
 Surface::~Surface()
 {
+  VideoSystem::free_surface_data(surface_data);
   texture->unref();
 }
 
-void
-Surface::hflip()
+/** flip the surface horizontally */
+void Surface::hflip()
 {
-  std::swap(uv_left, uv_right);
+  flipx = !flipx;
 }
 
-static inline void intern_draw(float left, float top, float right, float bottom,                               float uv_left, float uv_top,
-                               float uv_right, float uv_bottom,
-                               DrawingEffect effect)
+bool Surface::get_flipx() const
 {
-  if(effect & HORIZONTAL_FLIP)
-    std::swap(uv_left, uv_right);
-  if(effect & VERTICAL_FLIP) {
-    std::swap(uv_top, uv_bottom);
-  }
-
-  glBegin(GL_QUADS);
-  glTexCoord2f(uv_left, uv_top);
-  glVertex2f(left, top);
-
-  glTexCoord2f(uv_right, uv_top);
-  glVertex2f(right, top);
-
-  glTexCoord2f(uv_right, uv_bottom);
-  glVertex2f(right, bottom);
-
-  glTexCoord2f(uv_left, uv_bottom);
-  glVertex2f(left, bottom);
-  glEnd();
+  return flipx;
 }
 
-static inline void intern_draw2(float left, float top, float right, float bottom,
-                                float uv_left, float uv_top,
-                                float uv_right, float uv_bottom,
-                                float angle,
-                                const Color& color,
-                                const Blend& blend,
-                                DrawingEffect effect)
+Texture* 
+Surface::get_texture() const
 {
-  if(effect & HORIZONTAL_FLIP)
-    std::swap(uv_left, uv_right);
-  if(effect & VERTICAL_FLIP) {
-    std::swap(uv_top, uv_bottom);
-  }
-
-  float center_x = (left + right) / 2;
-  float center_y = (top + bottom) / 2;
-
-  float sa = sinf(angle/180.0f*M_PI);
-  float ca = cosf(angle/180.0f*M_PI);
-
-  left  -= center_x;
-  right -= center_x;
-
-  top    -= center_y;
-  bottom -= center_y;
-
-  glBlendFunc(blend.sfactor, blend.dfactor);
-  glColor4f(color.red, color.green, color.blue, color.alpha);
-  glBegin(GL_QUADS);
-  glTexCoord2f(uv_left, uv_top);
-  glVertex2f(left*ca - top*sa + center_x,
-             left*sa + top*ca + center_y);
-
-  glTexCoord2f(uv_right, uv_top);
-  glVertex2f(right*ca - top*sa + center_x,
-             right*sa + top*ca + center_y);
-
-  glTexCoord2f(uv_right, uv_bottom);
-  glVertex2f(right*ca - bottom*sa + center_x,
-             right*sa + bottom*ca + center_y);
-
-  glTexCoord2f(uv_left, uv_bottom);
-  glVertex2f(left*ca - bottom*sa + center_x,
-             left*sa + bottom*ca + center_y);
-  glEnd();
-
-  // FIXME: find a better way to restore the blend mode
-  glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
-  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+  return texture;
 }
 
-void
-Surface::draw(float x, float y, float alpha, float angle, const Color& color, const Blend& blend, DrawingEffect effect) const
+void
+Surface::get_surface_data() const
 {
-  glColor4f(1.0f, 1.0f, 1.0f, alpha);
-  glBindTexture(GL_TEXTURE_2D, texture->get_handle());
-
-  intern_draw2(x, y,
-               x + width, y + height,
-               uv_left, uv_top, uv_right, uv_bottom,
-               angle,
-               color,
-               blend,
-               effect);
+  return surface_data;
 }
 
-void
-Surface::draw(float x, float y, float alpha, DrawingEffect effect) const
+int
+Surface::get_x() const
 {
-  glColor4f(1.0f, 1.0f, 1.0f, alpha);
-  glBindTexture(GL_TEXTURE_2D, texture->get_handle());
+  return rect.left;
+}
 
-  intern_draw(x, y,
-              x + width, y + height,
-              uv_left, uv_top, uv_right, uv_bottom, effect);
+int
+Surface::get_y() const
+{
+  return rect.top;
 }
 
-void
-Surface::draw_part(float src_x, float src_y, float dst_x, float dst_y,
-                   float width, float height, float alpha,
-                   DrawingEffect effect) const
+int 
+Surface::get_width() const
 {
-  float uv_width = uv_right - uv_left;
-  float uv_height = uv_bottom - uv_top;
+  return rect.get_width();
+}
 
-  float uv_left = this->uv_left + (uv_width * src_x) / this->width;
-  float uv_top = this->uv_top + (uv_height * src_y) / this->height;
-  float uv_right = this->uv_left + (uv_width * (src_x + width)) / this->width;
-  float uv_bottom = this->uv_top + (uv_height * (src_y + height)) / this->height;
+int 
+Surface::get_height() const
+{
+  return rect.get_height();
+}
 
-  glColor4f(1.0f, 1.0f, 1.0f, alpha);
-  glBindTexture(GL_TEXTURE_2D, texture->get_handle());
+Vector
+Surface::get_position() const
+{
+  return Vector(get_x(), get_y()); 
+}
 
-  intern_draw(dst_x, dst_y,
-              dst_x + width, dst_y + height,
-              uv_left, uv_top, uv_right, uv_bottom, effect);
+Vector
+Surface::get_size() const
+{
+  return Vector(get_width(), get_height()); 
 }
+
+/* EOF */