-// $Id: drawing_context.h 2334 2005-04-04 16:26:14Z grumbel $
+// $Id$
//
-// SuperTux - A Jump'n Run
-// Copyright (C) 2004 Matthias Braun <matze@braunis.de
+// 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
#include <vector>
#include <string>
-#include <stdint.h>
+#include <memory>
-#include <GL/gl.h>
-#include <SDL.h>
#include <stdint.h>
-#include <memory>
+#include <SDL_video.h>
+
+#include "glutil.hpp"
+#include "obstack/obstack.h"
#include "math/vector.hpp"
-#include "surface.hpp"
+#include "math/rect.hpp"
+#include "drawing_request.hpp"
#include "font.hpp"
#include "color.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 = 100,
- LAYER_FOREGROUNDTILES = 200,
- LAYER_FOREGROUND0 = 300,
- LAYER_FOREGROUND1 = 400,
- LAYER_GUI = 500
-};
+struct DrawingRequest;
+class Renderer;
+class Lightmap;
/**
* This class provides functions for drawing things on screen. It also
public:
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);
/// Adds a drawing request for a surface into the request list.
void draw_surface(const Surface* surface, const Vector& position,
+ float angle, const Color& color, const Blend& blend,
int layer);
/// Adds a drawing request for part of a surface.
void draw_surface_part(const Surface* surface, const Vector& source,
/// Draws a text.
void draw_text(const Font* font, const std::string& text,
const Vector& position, FontAlignment alignment, int layer);
-
+
/// 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);
/// Draws a color gradient onto the whole screen */
/// 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();
-
+
const Vector& get_translation() const
{ return transform.translation; }
-
+
void set_translation(const Vector& newtranslation)
{ transform.translation = newtranslation; }
-
+
void push_transform();
void pop_transform();
-
+
/// Apply that effect in the next draws (effects are listed on surface.h).
void set_drawing_effect(DrawingEffect effect);
/// return currently applied drawing effect
/// 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
{
Vector translation;
DrawingEffect drawing_effect;
float alpha;
-
+
Transform()
: drawing_effect(NO_EFFECT), alpha(1.0f)
{ }
-
+
Vector apply(const Vector& v) const
{
return v - translation;
}
};
-
+
+ Renderer *renderer;
+ Lightmap *lightmap;
+
/// the transform stack
std::vector<Transform> transformstack;
/// the currently active transform
Transform transform;
- class Blend
- {
- public:
- GLenum sfactor;
- GLenum dfactor;
-
- Blend()
- : sfactor(GL_SRC_ALPHA), dfactor(GL_ONE_MINUS_SRC_ALPHA)
- {}
- };
std::vector<Blend> blend_stack;
Blend blend_mode;
-
- enum RequestType
- {
- SURFACE, SURFACE_PART, TEXT, GRADIENT, FILLRECT
- };
-
- 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;
-
- void* request_data;
-
- 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);
-
+
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 */
};
#endif
+
projects / supertux.git / blobdiff