-// $Id$
-//
// 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/>.
-#ifndef SUPERTUX_DRAWINGCONTEXT_H
-#define SUPERTUX_DRAWINGCONTEXT_H
+#ifndef HEADER_SUPERTUX_VIDEO_DRAWING_CONTEXT_HPP
+#define HEADER_SUPERTUX_VIDEO_DRAWING_CONTEXT_HPP
-#include <vector>
+#include <memory>
#include <string>
-#include <stdint.h>
+#include <vector>
-#include <GL/gl.h>
-#include <SDL.h>
#include <stdint.h>
-#include <memory>
-#include "math/vector.hpp"
#include "math/rect.hpp"
-#include "surface.hpp"
-#include "font.hpp"
-#include "color.hpp"
+#include "math/vector.hpp"
+#include "obstack/obstack.h"
+#include "video/color.hpp"
+#include "video/drawing_request.hpp"
+#include "video/font.hpp"
+#include "video/texture.hpp"
class Surface;
class Texture;
-
-// some constants for predefined layer values
-enum {
- LAYER_BACKGROUND0 = -300,
- LAYER_BACKGROUND1 = -200,
- LAYER_BACKGROUNDTILES = -100,
- LAYER_TILES = 0,
- LAYER_OBJECTS = 50,
- LAYER_FLOATINGOBJECTS = 150,
- LAYER_FOREGROUNDTILES = 200,
- LAYER_FOREGROUND0 = 300,
- LAYER_FOREGROUND1 = 400,
- LAYER_HUD = 500,
- LAYER_GUI = 600
-};
-
-class Blend
-{
-public:
- GLenum sfactor;
- GLenum dfactor;
-
- Blend()
- : sfactor(GL_SRC_ALPHA), dfactor(GL_ONE_MINUS_SRC_ALPHA)
- {}
-
- Blend(GLenum s, GLenum d)
- : sfactor(s), dfactor(d)
- {}
-};
+class Renderer;
+class Lightmap;
/**
* This class provides functions for drawing things on screen. It also
DrawingContext();
~DrawingContext();
+ void init_renderer();
+
/// Adds a drawing request for a surface into the request list.
void draw_surface(const Surface* surface, const Vector& position,
int layer);
const Vector& size, const Vector& dest, int layer);
/// Draws a text.
void draw_text(const Font* font, const std::string& text,
- const Vector& position, FontAlignment alignment, int layer);
+ const Vector& position, FontAlignment alignment, int layer, Color color = Color(1.0,1.0,1.0));
/// Draws text on screen center (feed Vector.x with a 0).
/// This is the same as draw_text() with a SCREEN_WIDTH/2 position and
- /// alignment set to LEFT_ALLIGN
+ /// alignment set to LEFT_ALIGN
void draw_center_text(const Font* font, const std::string& text,
- const Vector& position, int layer);
+ const Vector& position, int layer, Color color = Color(1.0,1.0,1.0));
/// Draws a color gradient onto the whole screen */
void draw_gradient(const Color& from, const Color& to, int layer);
/// Fills a rectangle.
void draw_filled_rect(const Vector& topleft, const Vector& size,
const Color& color, int layer);
void draw_filled_rect(const Rect& rect, const Color& color, int layer);
+ void draw_filled_rect(const Rect& rect, const Color& color, float radius, int layer);
+
+ void draw_inverse_ellipse(const Vector& pos, const Vector& size, const Color& color, int layer);
/// Processes all pending drawing requests and flushes the list.
void do_drawing();
/// return currently set alpha
float get_alpha() const;
- enum Target {
- NORMAL, LIGHTMAP
- };
+ /// on next update, set color to lightmap's color at position
+ void get_light(const Vector& position, Color* color );
+
+ typedef ::Target Target;
+ static const Target NORMAL = ::NORMAL;
+ static const Target LIGHTMAP = ::LIGHTMAP;
void push_target();
void pop_target();
void set_target(Target target);
-
+
void set_ambient_color( Color new_color );
+ /**
+ * requests that a screenshot be taken after the next frame has been rendered
+ */
+ void take_screenshot();
+
private:
class Transform
{
DrawingEffect drawing_effect;
float alpha;
- Transform()
- : drawing_effect(NO_EFFECT), alpha(1.0f)
+ Transform() :
+ translation(),
+ drawing_effect(NO_EFFECT),
+ alpha(1.0f)
{ }
Vector apply(const Vector& v) const
}
};
+ Renderer *renderer;
+ Lightmap *lightmap;
+
/// the transform stack
std::vector<Transform> transformstack;
/// the currently active transform
std::vector<Blend> blend_stack;
Blend blend_mode;
- enum RequestType
- {
- SURFACE, SURFACE_PART, TEXT, GRADIENT, FILLRECT, LIGHTMAPREQUEST
- };
-
- struct SurfacePartRequest
- {
- const Surface* surface;
- Vector source, size;
- };
-
- struct TextRequest
- {
- const Font* font;
- std::string text;
- FontAlignment alignment;
- };
-
- struct GradientRequest
- {
- Color top, bottom;
- Vector size;
- };
-
- struct FillRectRequest
- {
- Color color;
- Vector size;
- };
-
- struct DrawingRequest
- {
- RequestType type;
- Vector pos;
-
- int layer;
- DrawingEffect drawing_effect;
- float alpha;
- Blend blend;
- float angle;
- Color color;
-
- void* request_data;
-
- DrawingRequest()
- : angle(0.0f),
- color(1.0f, 1.0f, 1.0f, 1.0f)
- {}
-
- bool operator<(const DrawingRequest& other) const
- {
- return layer < other.layer;
- }
- };
-
- typedef std::vector<DrawingRequest> DrawingRequests;
+ typedef std::vector<DrawingRequest*> DrawingRequests;
void handle_drawing_requests(DrawingRequests& requests);
- void draw_surface_part(DrawingRequest& request);
- void draw_text(DrawingRequest& request);
- void draw_text_center(DrawingRequest& request);
- void draw_gradient(DrawingRequest& request);
- void draw_filled_rect(DrawingRequest& request);
- void draw_lightmap(DrawingRequest& request);
DrawingRequests drawing_requests;
DrawingRequests lightmap_requests;
DrawingRequests* requests;
Color ambient_color;
- SDL_Surface* screen;
Target target;
std::vector<Target> target_stack;
- Texture* lightmap;
- int lightmap_width, lightmap_height;
- float lightmap_uv_right, lightmap_uv_bottom;
+
+ /* obstack holding the memory of the drawing requests */
+ struct obstack obst;
+
+ bool screenshot_requested; /**< true if a screenshot should be taken after the next frame has been rendered */
+
+private:
+ DrawingContext(const DrawingContext&);
+ DrawingContext& operator=(const DrawingContext&);
};
#endif
+
+/* EOF */
projects / supertux.git / blobdiff