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restructured everything

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This commit is contained in:
Robert 2021-04-23 15:08:51 +02:00
parent 4225a524b9
commit c66cae17f2
61 changed files with 18406 additions and 1710 deletions
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0
.gitmodules vendored
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37
CMakeLists.txt
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@ -2,12 +2,35 @@ cmake_minimum_required(VERSION 3.8)
project(sdlu)
if(NOT ENABLE_EXAMPLE)
set(ENABLE_EXAMPLE CACHE BOOL OFF)
endif()
find_package(SDL2 CONFIG REQUIRED)
add_subdirectory(3rdparty/SDL)
add_subdirectory(SDLU)
if(ENABLE_EXAMPLE)
add_subdirectory(SDLU_Example)
option(BUILD_EXAMPLES "Builds the example projects" ON)
add_subdirectory(lib/sdl2_gfx)
file(GLOB_RECURSE sdlu_includes
"include/*.hpp"
)
file(GLOB_RECURSE sdlu_sources
"src/*.cpp"
)
add_library(sdlu
${sdlu_includes} ${sdlu_sources}
)
target_include_directories(sdlu PUBLIC
"include"
SDL2::SDL2
sdl2_gfx
)
target_link_libraries(sdlu PUBLIC
sdl2_gfx
SDL2::SDL2 SDL2::SDL2main
)
if(BUILD_EXAMPLES)
add_subdirectory(examples)
endif()

23
SDLU/CMakeLists.txt
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@ -1,23 +0,0 @@
set(PNAME SDLU)
add_library(${PNAME}
alibi.cpp SDLU.hpp Util.hpp
"structures/Color.cpp" "structures/Mouse.cpp" "structures/Window.cpp" "graphics/RenderTarget.cpp" "graphics/drawable/Transformable.cpp" "graphics/drawable/shapes/Rectangle.cpp")
set_property(TARGET ${PNAME} PROPERTY CXX_STANDARD 17)
target_include_directories(${PNAME} PRIVATE
${PROJECT_SOURCE_DIR}/3rdparty/SDL/include
${CMAKE_CURRENT_LIST_DIR}
)
target_link_libraries(${PNAME}
SDL2
)
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
target_link_libraries(${PNAME} m)
endif()
add_subdirectory(structures)
add_subdirectory(graphics)

7
SDLU/SDLU.hpp
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@ -1,7 +0,0 @@
#pragma once
#include "graphics/Graphics.hpp"
#include "structures/Mouse.hpp"
#include "exceptions/Exceptions.hpp"

1
SDLU/alibi.cpp
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@ -1 +0,0 @@
// CMake needs a .cpp file to build

12
SDLU/exceptions/Exceptions.hpp
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@ -1,12 +0,0 @@
/**
* @file Exceptions.hpp
* @brief Provides utility and includes all exceptions
* @author Lauchmelder23
* @date 16.05.2020
*/
#pragma once
#include "ObjectCreationException.hpp"
#define THROW_IF( condition, exception ) ( condition ? throw exception : false)
#define THROW_IF_NOT( condition, exception ) ( THROW_IF(!condition, exception) )

31
SDLU/exceptions/ObjectCreationException.hpp
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@ -1,31 +0,0 @@
/**
* @file ObjectCreationException.hpp
* @brief An exception object to handle failed object creations
* @author Lauchmelder23
* @date 16.05.2020
*/
#pragma once
#include <exception>
#include <string>
namespace sdlu
{
class ObjectCreationException :
virtual public std::exception
{
public:
ObjectCreationException(std::string description) :
m_pDescription(description)
{
// Empty
}
virtual const char* what() const throw()
{
return m_pDescription.c_str();
}
private:
std::string m_pDescription;
};
}

9
SDLU/graphics/CMakeLists.txt
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@ -1,9 +0,0 @@
target_sources(${PNAME} PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/Graphics.hpp
${CMAKE_CURRENT_SOURCE_DIR}/RenderWindow.hpp
${CMAKE_CURRENT_SOURCE_DIR}/RenderWindow.cpp
${CMAKE_CURRENT_SOURCE_DIR}/RenderTarget.hpp
${CMAKE_CURRENT_SOURCE_DIR}/RenderTarget.cpp
)
add_subdirectory(drawable)

86
SDLU/graphics/RenderTarget.cpp
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@ -1,86 +0,0 @@
#include "RenderTarget.hpp"
#include <Util.hpp>
#include <exceptions/Exceptions.hpp>
namespace sdlu
{
Uint32 RenderTarget::m_uRenderers = -1;
RenderTarget::~RenderTarget()
{
RETURN_IF_NULLPTR(renderer);
SDL_DestroyRenderer(renderer);
}
void RenderTarget::Clear(const Color& color)
{
RETURN_IF_NULLPTR(renderer);
SDL_SetRenderDrawColor(renderer, color.r, color.g, color.b, color.a);
SDL_RenderClear(renderer);
}
void RenderTarget::Draw(const Drawable& drawable)
{
RETURN_IF_NULLPTR(renderer);
drawable.Draw(renderer);
}
void RenderTarget::Display()
{
RETURN_IF_NULLPTR(renderer);
SDL_RenderPresent(renderer);
if (m_oFramerate != 0)
{
Uint64 diff = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::steady_clock::now() - m_oTimeSinceLastDisplay).count();
if (diff < 1000 / m_oFramerate)
{
SDL_Delay(static_cast<Uint32>(1000 / m_oFramerate - diff));
}
}
m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
}
void RenderTarget::SetMaxFramerate(Uint32 max)
{
m_oFramerate = max;
}
RenderTarget::RenderTarget(SDL_Window* target) :
renderer(nullptr), m_oFramerate(0)
{
RETURN_IF_NOT_NULLPTR(renderer);
renderer = SDL_CreateRenderer(target, m_uRenderers, SDL_RENDERER_ACCELERATED);
THROW_IF(IS_NULLPTR(renderer),
sdlu::ObjectCreationException("Failed to create SDL_Renderer* from SDL_Window*: "
+ std::string(SDL_GetError())));
m_uRenderers++;
m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
}
RenderTarget::RenderTarget(SDL_Surface* target) :
renderer(nullptr), m_oFramerate(0)
{
m_oFramerate = 0;
RETURN_IF_NOT_NULLPTR(renderer);
renderer = SDL_CreateSoftwareRenderer(target);
THROW_IF(IS_NULLPTR(renderer),
sdlu::ObjectCreationException("Failed to create SDL_Renderer* from SDL_Surface*: "
+ std::string(SDL_GetError())));
m_uRenderers++;
m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
}
}

81
SDLU/graphics/RenderTarget.hpp
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@ -1,81 +0,0 @@
/**
* @file RenderTarget
* @brief Contains rendering related objects
* @author Lauchmelder23
* @date 20.05.2020
*/
#pragma once
#include <chrono>
#include <SDL.h>
#include <structures/Color.hpp>
#include <graphics/drawable/Drawable.hpp>
namespace sdlu
{
/**
* @brief Acts as a wrapper for SDL_Renderer*. You can't (and shouldn't)
* instantiate this, but rather derive from it.
*/
class RenderTarget
{
public:
virtual ~RenderTarget();
/**
* @brief Clears the display
*
* @param[in] color The color to clear the display with
*/
void Clear(const Color& color = Color::Black);
/**
* @brief Draws a sdlu::Drawable to the SDL_Renderer
*
* @param[in] drawable A reference to a derived class of Drawable
*/
void Draw(const Drawable& drawable);
/**
* @brief Display the current state of the renderer to the screen
*/
void Display();
/**
* @brief Sets a maximum framerate on the display function
*
* If the maximum framerate is not 0, SDL_Delay() will be called
* after each Display() to ensure that the time between displays
* is not shorter than the framerate limit.
*
* @param[in] max The new maximum framerate
*/
void SetMaxFramerate(Uint32 max);
protected:
/**
* @brief Create Renderer and bind it to a window
*
* @param[in] target The SDL_Window to bind to
*/
RenderTarget(SDL_Window* target);
/**
* @brief Create Renderer and bind it to a texture
*
* @param[in] target The SDL_Surface to bind to
*/
RenderTarget(SDL_Surface* target);
protected:
SDL_Renderer* renderer; ///< The renderer object
private:
Uint32 m_oFramerate; ///< The current maximum framerate of the window (0 = unlimited)
std::chrono::steady_clock::time_point m_oTimeSinceLastDisplay; ///< The timepoint at which Display() was last called
static Uint32 m_uRenderers; ///< The number of renderers instantiated so far
};
}

40
SDLU/graphics/RenderWindow.cpp
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@ -1,40 +0,0 @@
#include "RenderWindow.hpp"
#include <cstring>
#include <exceptions/Exceptions.hpp>
#include <Util.hpp>
namespace sdlu
{
RenderWindow::RenderWindow() :
Window(), RenderTarget(window)
{
// Empty
}
RenderWindow::RenderWindow(Vector2u dimension, const std::string& title,
Uint32 windowFlags) :
Window(dimension, title, windowFlags), RenderTarget(window)
{
// Empty
}
RenderWindow::~RenderWindow()
{
// Empty
}
void RenderWindow::OnCreate()
{
}
bool RenderWindow::OnResize()
{
return false;
}
void RenderWindow::OnClose()
{
}
}

72
SDLU/graphics/RenderWindow.hpp
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@ -1,72 +0,0 @@
/**
* @file RenderWindow.hpp
* @brief A wrapper around SDL_Window and SDL_Renderer
* @author Lauchmelder23
* @date 16.05.2020
*/
#pragma once
#include <string>
#include <chrono>
#include <SDL.h>
#include <structures/Vector2.hpp>
#include <structures/Color.hpp>
#include <structures/Window.hpp>
#include <graphics/RenderTarget.hpp>
namespace sdlu
{
// TODO: Probably break up into sdlu::Window and sdlu::Renderer
// to avoid passing around the Renderer when only the Window is
// needed. (See Mouse::GetPosition for example)
/**
* @brief A class that handles window related functionality
*
* A class that combines the SDL_Window and SDL_Renderer and
* behaves similar to the sf::RenderWindow from SFML. It provides
* utility and wrappers for common operations on those objects.
*/
class RenderWindow : public Window, public RenderTarget
{
public:
/**
* @brief Default Constructor. No window or renderer is created.
*/
RenderWindow();
/**
* @brief Creates a window and renderer with the given parameters
*
* @param[in] dimension A vector containing the width and height
* @param[in] title The title of the create window
*/
RenderWindow(Vector2u dimension, const std::string& title,
Uint32 windowFlags = SDL_WINDOW_SHOWN);
RenderWindow(const RenderWindow& other) = delete;
RenderWindow(const RenderWindow&& other) = delete;
virtual ~RenderWindow();
protected:
/**
* @brief Function called after Window creation
*/
virtual void OnCreate();
/**
* @brief Function called after resize event
*
* @return True if the resize event should not be returned via
* PollEvent()
*/
virtual bool OnResize();
/**
* @brief Function called after closing the window
*/
virtual void OnClose();
};
}

7
SDLU/graphics/drawable/CMakeLists.txt
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@ -1,7 +0,0 @@
target_sources(${PNAME} PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/Drawable.hpp
${CMAKE_CURRENT_SOURCE_DIR}/Transformable.hpp
${CMAKE_CURRENT_SOURCE_DIR}/Transformable.cpp
)
add_subdirectory( shapes )

29
SDLU/graphics/drawable/Drawable.hpp
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@ -1,29 +0,0 @@
/**
* @file Drawable.hpp
* @brief The base class of everything renderable by RenderTarget
* @author Lauchmelder23
* @date 20.05.2020
*/
#pragma once
#include <SDL.h>
namespace sdlu
{
/**
* @brief Everything that can be rendered derives from this class.
*/
class Drawable
{
public:
Drawable(const Drawable& other) = delete;
Drawable(Drawable&& other) = delete;
Drawable& operator=(const Drawable& other) = delete;
friend class RenderTarget;
protected:
Drawable() { }
virtual void Draw(SDL_Renderer* const target) const = 0;
};
}

95
SDLU/graphics/drawable/Transformable.cpp
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@ -1,95 +0,0 @@
#include "Transformable.hpp"
namespace sdlu
{
Transformable::Transformable() :
position(0, 0), origin(0, 0),
scale(1.f, 1.f), rotation(0.f)
{
// Empty
}
Transformable::~Transformable()
{
// Empty
}
Vector2f Transformable::GetPosition()
{
return position;
}
void Transformable::SetPosition(const Vector2f& position)
{
this->position = position;
}
void Transformable::SetPosition(float x, float y)
{
position = Vector2f(x, y);
}
void Transformable::Move(const Vector2f& position)
{
this->position += position;
}
void Transformable::Move(float x, float y)
{
position += Vector2f(x, y);
}
Vector2f Transformable::GetOrigin()
{
return origin;
}
void Transformable::SetOrigin(const Vector2f& origin)
{
this->origin = origin;
}
void Transformable::SetOrigin(float x, float y)
{
origin = Vector2f(x, y);
}
Vector2f Transformable::GetScale()
{
return scale;
}
void Transformable::SetScale(const Vector2f& scale)
{
this->scale = scale;
}
void Transformable::SetScale(float x, float y)
{
scale = Vector2f(x, y);
}
void Transformable::Scale(const Vector2f& scale)
{
this->scale += scale;
}
void Transformable::Scale(float x, float y)
{
scale += Vector2f(x, y);
}
float Transformable::GetRotation()
{
return rotation;
}
void Transformable::SetRotation(float angle)
{
rotation = angle;
}
void Transformable::Rotate(float angle)
{
rotation += angle;
}
}

158
SDLU/graphics/drawable/Transformable.hpp
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@ -1,158 +0,0 @@
/**
* @file Transformable.hpp
* @brief Contains information for transformable objects
* @author Lauchmelder23
* @date 23.05.2020
*/
#pragma once
#include <structures/Vector2.hpp>
namespace sdlu
{
/**
* @brief A class that stores locational information
*
* Stores position, rotation, scale and the origin of an
* object, and provides functions to get/set those values.
* "Origin" is the offset between the position and the top-left
* corner of the object.
*/
class Transformable
{
public:
/**
* @brief Default constructur
*/
Transformable();
/**
* @brief Deconstructor
*/
virtual ~Transformable();
/**
* @brief Returns the position of the object
*
* @return A 2D vector of the position
*/
Vector2f GetPosition();
/**
* @brief Sets a new position
*
* @param[in] position A 2D vector with the new position
*/
void SetPosition(const Vector2f& position);
/**
* @brief Sets a new position
*
* @param[in] x The new x position
* @param[in] y The new y position
*/
void SetPosition(float x, float y);
/**
* @brief Adds to the current position
*
* @param[in] position A 2D movement vector
*/
void Move(const Vector2f& position);
/**
* @brief Adds to the current position
*
* @param[in] x The offset in x direction
* @param[in] y The offset in y direction
*/
void Move(float x, float y);
/**
* @brief Gets the current local origin
*
* @return A 2D vector with the offset
*/
Vector2f GetOrigin();
/**
* @brief Sets a new local origin
*
* @param[in] origin A 2D vector with the new origin
*/
void SetOrigin(const Vector2f& origin);
/**
* @brief Sets a new local origin
*
* @param[in] x The new x component of the origin
* @param[in] y The new y component of the origin
*/
void SetOrigin(float x, float y);
/**
* @brief Gets the current scale of the object
*
* @return A 2D vector with the scale in x- and y-direction
*/
Vector2f GetScale();
/**
* @brief Sets a new scale
*
* @param[in] scale A 2D vector with the new scale
*/
void SetScale(const Vector2f& scale);
/**
* @brief Sets a new scale
*
* @param[in] x The new scale in x direction
* @param[in] y The new scale in y direction
*/
void SetScale(float x, float y);
/**
* @brief Scales the object by some amount
*
* @param[in] scale The amount to scale by in x- and y-direction
*/
void Scale(const Vector2f& scale);
/**
* @brief Scales the object by some amount
*
* @param[in] x The amount to scale by in x direction
* @param[in] y The amount to scale by in y direction
*/
void Scale(float x, float y);
/**
* @brief Gets the current rotation
*
* @return The rotation in degrees
*/
float GetRotation();
/**
* @brief Sets a new rotation
*
* @param[in] angle The new rotation in degrees
*/
void SetRotation(float angle);
/**
* @brief Rotates by some amount
*
* @param[in] angle The angle to rotate by in degrees
*/
void Rotate(float angle);
protected:
Vector2f position; ///< Position of the object
Vector2f origin; ///< Offset of the top-left corner from the position
Vector2f scale; ///< Scale of the object
float rotation; ///< Rotation of the object (in degrees)
};
}

6
SDLU/graphics/drawable/shapes/CMakeLists.txt
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@ -1,6 +0,0 @@
target_sources(${PNAME} PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/Shape.hpp
${CMAKE_CURRENT_SOURCE_DIR}/Shape.cpp
${CMAKE_CURRENT_SOURCE_DIR}/Rectangle.hpp
${CMAKE_CURRENT_SOURCE_DIR}/Rectangle.cpp
)

46
SDLU/graphics/drawable/shapes/Shape.hpp
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@ -1,46 +0,0 @@
/**
* @file Shape.hpp
* @brief The base class for all native SDLU shapes
* @author Lauchmelder23
* @date 23.05.2020
*/
#pragma once
#include <graphics/drawable/Drawable.hpp>
#include <graphics/drawable/Transformable.hpp>
#include <structures/Color.hpp>
namespace sdlu
{
/**
* @brief The non-instantiable base class for all SDLU shapes
*/
class Shape :
public Drawable, public Transformable
{
public:
/**
* @brief Deconstructor
*/
virtual ~Shape();
/**
* @brief Sets the color of the shape
*/
void SetColor(const Color& color);
/**
* @brief Gets the color of the shape
*/
Color GetColor();
protected:
/**
* @brief Default constructor
*/
Shape();
protected:
Color color;
};
}

9
SDLU/structures/CMakeLists.txt
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@ -1,9 +0,0 @@
target_sources(${PNAME} PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/Vector2.hpp
${CMAKE_CURRENT_SOURCE_DIR}/Color.hpp
${CMAKE_CURRENT_SOURCE_DIR}/Color.cpp
${CMAKE_CURRENT_SOURCE_DIR}/Mouse.hpp
${CMAKE_CURRENT_SOURCE_DIR}/Mouse.cpp
${CMAKE_CURRENT_SOURCE_DIR}/Window.hpp
${CMAKE_CURRENT_SOURCE_DIR}/Window.cpp
)

163
SDLU/structures/Color.cpp
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@ -1,163 +0,0 @@
#include "Color.hpp"
#include <math.h>
#include <cmath>
namespace sdlu
{
const Color Color::Black = Color(0, 0, 0);
const Color Color::Red = Color(255, 0, 0);
const Color Color::Green = Color(0, 255, 0);
const Color Color::Blue = Color(0, 0, 255);
const Color Color::Yellow = Color(255, 255, 0);
const Color Color::Magenta = Color(255, 0, 255);
const Color Color::Cyan = Color(0, 255, 255);
const Color Color::White = Color(255, 255, 255);
const Color Color::Transparent = Color(0, 0, 0, 0);
Color::Color() :
r(0), g(0), b(0), a(0)
{
// Empty
}
Color::Color(Uint8 r, Uint8 g, Uint8 b, Uint8 a) :
r(r), g(g), b(b), a(a)
{
// Empty
}
Color::Color(Uint32 color) :
r((color & 0xFF000000) >> 24),
g((color & 0x00FF0000) >> 16),
b((color & 0x0000FF00) >> 8),
a((color & 0x000000FF))
{
// Empty
}
Uint32 Color::ToInt()
{
Uint32 color = 0;
color |= r << 24;
color |= g << 16;
color |= b << 8;
color |= a;
return color;
}
Color Color::FromHSV(Uint16 h, Uint8 s, Uint8 v)
{
// Normalize parameters
// H : [0, 360)
// S : [0, 1]
// V : [0, 1]
h -= std::floor(h / 360) * 360;
s = (s > 1) ? 1 : s;
v = (v > 1) ? 1 : v;
// Convert to RGBA
Uint16 H = std::floor(h / 60.f);
float f = (h / 60.f) - H;
Uint8 p = static_cast<Uint8>((v * (1 - s)) * 255);
Uint8 q = static_cast<Uint8>((v * (1 - s * f)) * 255);
Uint8 t = static_cast<Uint8>((v * (1 - s * (1 - f))) * 255);
v *= 255;
Color output;
switch (H)
{
case 0:
case 6:
output = Color(v, t, p);
break;
case 1:
output = Color(q, v, p);
break;
case 2:
output = Color(p, v, t);
break;
case 3:
output = Color(p, q, v);
break;
case 4:
output = Color(t, p, v);
break;
case 5:
output = Color(v, p, q);
break;
default:
break;
}
return output;
}
Color operator+(const Color& left, const Color& right)
{
return Color((UINT8_MAX - left.r) < right.r ? 255 : left.r + right.r,
(UINT8_MAX - left.g) < right.g ? 255 : left.g + right.g,
(UINT8_MAX - left.b) < right.b ? 255 : left.b + right.b,
(UINT8_MAX - left.a) < right.a ? 255 : left.a + right.a);
}
Color operator-(const Color& left, const Color& right)
{
return Color(left.r < right.r ? 0 : left.r - right.r,
left.g < right.g ? 0 : left.g - right.g,
left.b < right.b ? 0 : left.b - right.b,
left.a < right.a ? 0 : left.a - right.a);
}
Color operator*(const Color& left, const Color& right)
{
return Color((UINT8_MAX / left.r) < right.r ? 255 : left.r * right.r,
(UINT8_MAX / left.g) < right.g ? 255 : left.g * right.g,
(UINT8_MAX / left.b) < right.b ? 255 : left.b * right.b,
(UINT8_MAX / left.a) < right.a ? 255 : left.a * right.a);
}
Color operator/(const Color& left, const Color& right)
{
return Color(left.r / right.r,
left.g / right.g,
left.b / right.b,
left.a / right.a);
}
Color& operator+=(Color& left, const Color& right)
{
left = left + right;
return left;
}
Color& operator-=(Color& left, const Color& right)
{
left = left - right;
return left;
}
Color& operator*=(Color& left, const Color& right)
{
left = left * right;
return left;
}
Color& operator/=(Color& left, const Color& right)
{
left = left / right;
return left;
}
bool operator==(const Color& left, const Color& right)
{
return ((left.r == right.r) && (left.g == right.g) && (left.b == right.b) && (left.a == right.a));
}
bool operator!=(const Color& left, const Color& right)
{
return !(left == right);
}
}

38
SDLU/structures/Mouse.cpp
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@ -1,38 +0,0 @@
#include "Mouse.hpp"
#include <SDL_mouse.h>
namespace sdlu
{
Uint32 Mouse::GetButtonState()
{
return SDL_GetMouseState(NULL, NULL);
}
bool Mouse::IsButtonDown(Button button)
{
return (GetButtonState() & SDL_BUTTON(button));
}
Vector2i Mouse::GetPosition()
{
int x = 0, y = 0;
SDL_GetGlobalMouseState(&x, &y);
return Vector2i(x, y);
}
Vector2i Mouse::GetPosition(const RenderWindow& relativeTo)
{
return GetPosition() - relativeTo.GetPosition();
}
void Mouse::SetPosition(const Vector2i& position)
{
SDL_WarpMouseGlobal(position.x, position.y);
}
void Mouse::SetPosition(const Vector2i& position, const RenderWindow& relativeTo)
{
SDL_WarpMouseInWindow(relativeTo.GetWindow(), position.x, position.y);
}
}

77
SDLU/structures/Mouse.hpp
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@ -1,77 +0,0 @@
/**
* @file Mouse.hpp
* @brief A static class to provide easy handling of the mouse
* @author Lauchmelder23
* @date 19.05.2020
*/
#pragma once
#include <SDL_mouse.h>
#include <structures/Vector2.hpp>
#include <graphics/RenderWindow.hpp>
namespace sdlu
{
/**
* @brief A static class that contains/handles data about
* mouse position and button states
*/
class Mouse
{
public:
/**
* @brief Mouse buttons
*/
enum Button {
Left = SDL_BUTTON_LEFT,
Right = SDL_BUTTON_RIGHT,
Middle = SDL_BUTTON_MIDDLE,
XButton1 = SDL_BUTTON_X1,
XButton2 = SDL_BUTTON_X2
};
/**
* @brief Returns the current mouse button state
*
* @return A 32-bit mask of the current button state
*/
static Uint32 GetButtonState();
/**
* @brief Checks if a specific button is pressed
*
* @param[in] button The button to check
* @return True if the button is pressed
*/
static bool IsButtonDown(Button button);
/**
* @brief Gets the absolute position of the mouse
*
* @return Current mouse position relative to screen
*/
static Vector2i GetPosition();
/**
* @brief Gets current relative position of the mouse
*
* @param[in] relativeTo The window the mouse position should be relative to
* @return The position of the mouse relative to the top left of the passed window object
*/
static Vector2i GetPosition(const RenderWindow& relativeTo);
/**
* @brief Sets the absolute position of the mouse
*
* @param[in] position A 2D vector of the new position
*/
static void SetPosition(const Vector2i& position);
/**
* @brief Sets current relative position of the mouse
*
* @param[in] position A 2D vector of the new position
* @param[in] relativeTo The window the mouse position should be relative to
*/
static void SetPosition(const Vector2i& position, const RenderWindow& relativeTo);
};
}

152
SDLU/structures/Vector2.hpp
View file

@ -1,152 +0,0 @@
/**
* @file Vector2.hpp
* @brief Provides a structure for simple vector calculations
* @author Lauchmelder23
* @date 16.05.2020
*/
#pragma once
#include <type_traits>
namespace sdlu
{
/**
* @brief A struct to handle basic 2D vector operations.
*
* @tparam T The (arithmetical) type of the vector components
*/
template<
typename T,
typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type
> struct Vector2
{
T x; ///< x component
T y; ///< y component
//################## CONSTRUCTORS ##################//
/// Initializes a zero vector
Vector2() :
x(0), y(0)
{
// Empty
}
/// Initializes a vector with default values
Vector2(T x, T y) :
x(x), y(y)
{
// Empty
}
/// Copies the components of a vector
Vector2(const Vector2<T>& other) :
x(other.x), y(other.y)
{
// Empty
}
//################## OPERATORS ##################//
friend Vector2<T> operator-(const Vector2<T>& right)
{
return Vector2<T>(-right.x, -right.y);
}
friend Vector2<T> operator+(const Vector2<T>& left, const Vector2<T>& right)
{
return Vector2<T>(left.x + right.x, left.y + right.y);
}
friend Vector2<T> operator-(const Vector2<T>& left, const Vector2<T>& right)
{
return left + (-right);
}
friend Vector2<T> operator*(const Vector2<T>& left, const Vector2<T>& right)
{
return Vector2<T>(left.x * right.x, left.y * right.y);
}
friend Vector2<T> operator/(const Vector2<T>& left, const Vector2<T>& right)
{
return Vector2<T>(left.x / right.x, left.y / right.y);
}
friend Vector2<T> operator*(T left, const Vector2<T>& right)
{
return Vector2<T>(left * right.x, left * right.y);
}
friend Vector2<T> operator*(const Vector2<T>& left, T right)
{
return right * left;
}
friend Vector2<T> operator/(const Vector2<T>& left, T right)
{
return Vector2<T>(left.x / right, left.y / right);
}
friend Vector2<T>& operator+=(Vector2<T>& left, const Vector2<T>& right)
{
left.x += right.x;
left.y += right.y;
return left;
}
friend Vector2<T>& operator-=(Vector2<T>& left, const Vector2<T>& right)
{
left += (-right);
return left;
}
friend Vector2<T>& operator*=(Vector2<T>& left, const Vector2<T>& right)
{
left.x *= right.x;
left.y *= right.y;
return left;
}
friend Vector2<T>& operator/(Vector2<T>& left, const Vector2<T>& right)
{
left.x /= right.x;
left.y /= right.y;
return left;
}
friend Vector2<T>& operator*=(Vector2<T>& left, T right)
{
left.x *= right;
left.y *= right;
return left;
}
friend Vector2<T>& operator/=(Vector2<T>& left, T right)
{
left.x /= right;
left.y /= right;
return left;
}
friend bool operator==(const Vector2<T>& left, const Vector2<T>& right)
{
return ((left.x == right.x) && (left.y == right.y));
}
friend bool operator!=(const Vector2<T>& left, const Vector2<T>& right)
{
return !(left == right);
}
};
//################## TYPEDEFS ##################//
typedef Vector2<unsigned int> Vector2u, Vec2u;
typedef Vector2<int> Vector2i, Vec2i;
typedef Vector2<float> Vector2f, Vec2f;
typedef Vector2<double> Vector2d, Vec2d;
}

253
SDLU/structures/Window.cpp
View file

@ -1,253 +0,0 @@
#include "Window.hpp"
#include <cstring>
#include <exceptions/Exceptions.hpp>
namespace sdlu
{
Window::Window() :
window(nullptr)
{
// Empty
}
Window::Window(Vector2u dimension, const std::string& title, Uint32 windowFlags) :
Window()
{
Create(dimension, title, windowFlags);
}
Window::~Window()
{
Close();
}
void Window::Create(Vector2u dimension, const std::string& title, Uint32 windowFlags)
{
// Don't create a window when it already exists
RETURN_IF_NOT_NULLPTR(window);
window = SDL_CreateWindow(title.c_str(),
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
dimension.x, dimension.y,
windowFlags);
THROW_IF(IS_NULLPTR(window),
ObjectCreationException("Failed to create SDL_Window. \nSDL_GetError(): " + std::string(SDL_GetError())));
OnCreate();
}
void Window::Close()
{
// Don't destroy a window that doesn't exist
RETURN_IF_NULLPTR(window);
SDL_DestroyWindow(window);
window = nullptr;
OnClose();
}
bool Window::IsOpen() const
{
RETURN_IF_NULLPTR(window, false);
return (!SDL_GetWindowID(window) ? false : true);
}
bool Window::PollEvent(SDL_Event* event)
{
RETURN_IF_NULLPTR(window, false);
// Handle events before the user in case a derived
// class decides to block the event.
while (SDL_PollEvent(event))
{
switch (event->window.event)
{
case SDL_WINDOWEVENT_RESIZED: if (!OnResize()) return true; break;
default: return true;
}
}
event = NULL;
return false;
}
bool Window::WaitEvent(SDL_Event* event)
{
while (!PollEvent(event)) continue;
return true;
}
Vector2i Window::GetPosition() const
{
RETURN_IF_NULLPTR(window, Vector2i());
int x = 0, y = 0;
SDL_GetWindowPosition(window, &x, &y);
return Vector2i(x, y);
}
void Window::SetPosition(Vector2i position)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowPosition(window, position.x, position.y);
}
void Window::SetPosition(int x, int y)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowPosition(window, x, y);
}
Vector2u Window::GetSize() const
{
RETURN_IF_NULLPTR(window, Vector2u());
int x = 0, y = 0;
SDL_GetWindowSize(window, &x, &y);
return Vector2u(x, y);
}
void Window::SetSize(Vector2u size)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowSize(window, size.x, size.y);
}
void Window::SetSize(unsigned int width, unsigned int height)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowSize(window, width, height);
}
std::string Window::GetTitle() const
{
RETURN_IF_NULLPTR(window, "");
return SDL_GetWindowTitle(window);
}
void Window::SetTitle(std::string title)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowTitle(window, title.c_str());
}
SDL_Window* const Window::GetWindow() const
{
return window;
}
void Window::SetVisible(bool visible)
{
RETURN_IF_NULLPTR(window);
if (visible)
SDL_ShowWindow(window);
else
SDL_HideWindow(window);
}
void Window::SetVsync(bool vsync)
{
// SDL actually doesn't allow you to change the VSync
// flag of a Renderer after it's been created. This
// Changes it globally for all other windows
SDL_GL_SetSwapInterval(vsync);
}
void Window::SetMouseCursorVisible(bool visible)
{
SDL_ShowCursor(visible);
}
void Window::SetMouseCursorGrabbed(bool grabbed)
{
SDL_SetWindowGrab(window, grabbed ? SDL_TRUE : SDL_FALSE);
}
void Window::SetIcon(Uint32 width, Uint32 height, const Uint8* pixels)
{
size_t size = static_cast<size_t>(width) * static_cast<size_t>(height) * 4;
void* _pixels = malloc(size);
memcpy(_pixels, pixels, size);
SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
width, height, 32, 32 * width,
SDL_PIXELFORMAT_RGBA8888);
SDL_SetWindowIcon(window, surface);
}
void Window::SetIcon(Uint32 width, Uint32 height, const Uint32* pixels)
{
size_t size = static_cast<size_t>(width) * static_cast<size_t>(height) * 4;
void* _pixels = malloc(size);
memcpy(_pixels, pixels, size);
SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
width, height, 32, 4 * width,
SDL_PIXELFORMAT_RGBA8888);
SDL_SetWindowIcon(window, surface);
}
void Window::SetIcon(SDL_Surface* icon)
{
SDL_SetWindowIcon(window, icon);
}
void Window::SetMouseCursor(SDL_Cursor* cursor)
{
SDL_SetCursor(cursor);
}
void Window::SetMouseCursor(SDL_SystemCursor cursor)
{
SDL_Cursor* _cursor = SDL_CreateSystemCursor(cursor);
SDL_SetCursor(_cursor);
}
void Window::SetMouseCursor(SDL_Surface* surface, Vector2u clickspot)
{
SDL_Cursor* _cursor = SDL_CreateColorCursor(surface, clickspot.x, clickspot.y);
SDL_SetCursor(_cursor);
}
void Window::SetMouseCursor(const Uint8* pixels, Vector2u size, Vector2u clickspot)
{
size_t _size = static_cast<size_t>(size.x) * static_cast<size_t>(size.y) * 4;
void* _pixels = malloc(_size);
memcpy(_pixels, pixels, _size);
SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
size.x, size.y, 32, 8 * size.x, SDL_PIXELFORMAT_RGBA8888);
this->SetMouseCursor(surface, clickspot);
}
void Window::SetMouseCursor(const Uint32* pixels, Vector2u size, Vector2u clickspot)
{
size_t _size = static_cast<size_t>(size.x) * static_cast<size_t>(size.y) * 4;
void* _pixels = malloc(_size);
memcpy(_pixels, pixels, _size);
SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
size.x, size.y, 32, 8 * size.x, SDL_PIXELFORMAT_RGBA32);
this->SetMouseCursor(surface, clickspot);
}
void Window::OnCreate()
{
}
bool Window::OnResize()
{
return false;
}
void Window::OnClose()
{
}
}

269
SDLU/structures/Window.hpp
View file

@ -1,269 +0,0 @@
/**
* @file Window.hpp
* @brief Contains window related objects
* @author Lauchmelder23
* @date 20.05.20
*/
#pragma once
#include <string>
#include <chrono>
#include <SDL.h>
#include <Util.hpp>
#include <structures/Vector2.hpp>
namespace sdlu
{
/**
* @brief Stores information about a window. You probably want RenderWindow.
*/
class Window
{
public:
/**
* @brief Default Constructor. No window is created.
*/
Window();
/**
* @brief Creates a window with the given parameters
*
* @param[in] dimension A vector containing the width and height
* @param[in] title The title of the create window
*/
Window(Vector2u dimension, const std::string& title,
Uint32 windowFlags);
Window(const Window& other) = delete;
Window(Window&& other) = delete;
virtual ~Window();
/**
* @brief Creates the window.
*
* This function creates the SDL_Window object. If
* they were already created the function does nothing and returns.
* If it fails to create either, an ObjectCreationException is thrown.
*
* @param[in] dimension A vector containing the width and height
* @param[in] title The title of the create window
*/
void Create(Vector2u dimension, const std::string& title,
Uint32 windowFlags);
/**
* @brief Destroys the window.
*/
void Close();
/**
* @brief Wether or not the window object is created
*
* @return True if the window is open, False if not
*/
bool IsOpen() const;
/**
* @brief A non-blocking event polling function
*
* @param[out] event An object to write the latest event to
* @return True if there was an event, False if there wasn't
*/
bool PollEvent(SDL_Event* event);
/**
* @brief A blocking event polling function
*
* @param[out] event An object to write the latest event to
* @return True if an event was polled
*/
bool WaitEvent(SDL_Event* event);
/**
* @brief Returns the current position of the window
*
* @return A vector with the current position relative to the top left corner of the display
*/
Vector2i GetPosition() const;
/**
* @brief Sets a new window position
*
* @param[in] position A vector with the new position
*/
void SetPosition(Vector2i position);
/**
* @brief Sets a new window position
*
* @param[in] x The new x position
* @param[in] y The new y position
*/
void SetPosition(int x, int y);
/**
* @brief Gets the current window size
*
* @return A vector with the windows size
*/
Vector2u GetSize() const;
/**
* @brief Sets a new window size
*
* @param[in] size A vector with the new size
*/
void SetSize(Vector2u size);
/**
* @brief Sets a new window size
*
* @param[in] width The new width of the window
* @param[in] height The new height of the window
*/
void SetSize(unsigned int width, unsigned int height);
/**
* @brief Gets the current window title
*
* @return The title of the widnow
*/
std::string GetTitle() const;
/**
* @brief Sets a new window title
*
* @param[in] title The new window title
*/
void SetTitle(std::string title);
/**
* @brief Returns a constant pointer to the SDL_Window
*
* @return A constant pointer to SDL_Window
*/
SDL_Window* const GetWindow() const;
/**
* @brief Set the windows visibility
*
* @param[in] visible The new visibility setting
*/
void SetVisible(bool visible);
/**
* @brief (De)activates VSync !globally!
*
* @param[in] vsync Wether to enable or disable vsync
*/
void SetVsync(bool vsync);
/**
* @brief Hides/Shows the mouse cursor inside the windos
*
* @param[in] visible The new visibility of the cursor
*/
void SetMouseCursorVisible(bool visible);
/**
* @brief Traps the mouse cursor inside the window
*
* @param[in] grabbed Wether to (un)trap the cursor
*/
void SetMouseCursorGrabbed(bool grabbed);
/**
* @brief Sets the window icon to an array of RGBA values
*
* @param[in] width Width of the icon (in px)
* @param[in] height Height of the icon (in px)
* @param[in] pixels Array of color data (RGBA as seperate 8-Bit integer values)
*/
void SetIcon(Uint32 width, Uint32 height, const Uint8* pixels);
/**
* @brief Sets the window icon to an array of RGBA values
*
* @param[in] width Width of the icon (in px)
* @param[in] height Height of the icon (in px)
* @param[in] pixels Array of color data (RGBA as one 32-Bit integer value)
*/
void SetIcon(Uint32 width, Uint32 height, const Uint32* pixels);
/**
* @brief Sets the window icon to a SDL_Surface
*
* @param[in] icon A SDL_Surface* holding the icon data
*/
void SetIcon(SDL_Surface* icon);
/**
* @brief Changes the mouse cursor
*
* @param[in] cursor A pointer to a SDL_Cursor containing cursor data
*/
void SetMouseCursor(SDL_Cursor* cursor);
/**
* @brief Changes the mouse cursor
*
* @param[in] cursor An enum for a system cursor
*/
void SetMouseCursor(SDL_SystemCursor cursor);
/**
* @brief Changes the mouse cursor
*
* @param[in] surface A pointer to a SDL_Surface containing sprite data
* @param[in] clickspot The effective position of the cursor relative to the top left of the sprite
*/
void SetMouseCursor(SDL_Surface* surface, Vector2u clickspot);
/**
* @brief Changes the mouse cursor
*
* @param[in] pixels An array of color data (RGBA as seperate 8-bit values)
* @param[in] size Size of the cursor
* @param[in] clickspot The effective position of the cursor relative to the top left of the sprite
*/
void SetMouseCursor(const Uint8* pixels, Vector2u size, Vector2u clickspot);
/**
* @brief Changes the mouse cursor
*
* @param[in] pixels An array of color data (RGBA as one 32-bit value)
* @param[in] size Size of the cursor
* @param[in] clickspot The effective position of the cursor relative to the top left of the sprite
*/
void SetMouseCursor(const Uint32* pixels, Vector2u size, Vector2u clickspot);
protected:
SDL_Window* window;
protected:
/**
* @brief This function is called after Create() finishes
*/
virtual void OnCreate();
/**
* @brief This function is called after a SDL_WINDOWEVENT_RESIZED is polled.
* (PollEvent() must be called for this to work)
*
* @return True if the resize event should be popped from the event queue before
returning the polled event to the user
*/
virtual bool OnResize();
/**
* @brief This function is called after Close() finishes.
*/
virtual void OnClose();
};
}

21
SDLU_Example/CMakeLists.txt
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@ -1,21 +0,0 @@
set(PNAME sdlu_example)
add_executable(${PNAME}
main.cpp header.hpp
)
target_include_directories(${PNAME} PRIVATE
${PROJECT_SOURCE_DIR}/SDLU
${PROJECT_SOURCE_DIR}/3rdparty/SDL/include
)
target_link_libraries(${PNAME}
SDLU
SDL2
SDL2main
)
add_custom_command(TARGET ${PNAME}
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:SDL2> $<TARGET_FILE_DIR:sdlu_example>
)

15
examples/CMakeLists.txt Normal file
View file

@ -0,0 +1,15 @@
add_executable(sdlu_example
main.cpp header.hpp
)
target_include_directories(sdlu_example PUBLIC
sdlu
)
target_link_libraries(sdlu_example
sdlu
)
# add_custom_command(TARGET sdlu_example POST_BUILD
# COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:SDL2> $<TARGET_FILE_DIR:sdlu_example>
# )

5
SDLU_Example/header.hpp → examples/header.hpp
View file

@ -1,7 +1,6 @@
#include <SDLU.hpp>
#pragma once
#include "SDLU.hpp"
#include <iostream>
#include <SDLU.hpp>
class MyWindow :
public sdlu::RenderWindow
@ -9,7 +8,7 @@ class MyWindow :
public:
MyWindow(Uint32 width, Uint32 height, const char* title) :
RenderWindow(sdlu::Vector2u(width, height), title,
SDL_WINDOW_RESIZABLE)
32)
{
// Empty
}

11
SDLU_Example/main.cpp → examples/main.cpp
View file

@ -1,11 +1,13 @@
#include "header.hpp"
#include <SDL_events.h>
#include <math.h>
#include <cmath>
int main(int argc, char** argv)
{
SDL_Init(SDL_INIT_VIDEO);
sdlu::Initialize();
Uint32* icon_data = new Uint32[64 * 64];
for (int y = 0; y < 64; y++)
@ -22,10 +24,10 @@ int main(int argc, char** argv)
Uint64 diff = 1;
MyWindow window(800, 800, "Test");
SDL_SetWindowTitle(window.GetWindow(), "New Title");
window.SetTitle("New Title");
window.SetIcon(64, 64, icon_data);
window.SetMouseCursor(SDL_SYSTEM_CURSOR_CROSSHAIR);
// window.SetMouseCursor(SDL_SYSTEM_CURSOR_CROSSHAIR);
window.SetMaxFramerate(144);
SDL_Event event;
@ -73,7 +75,6 @@ int main(int argc, char** argv)
start = std::chrono::steady_clock::now();
}
SDL_Quit();
sdlu::Quit();
return 0;
}

10
include/SDLU.hpp Normal file
View file

@ -0,0 +1,10 @@
#pragma once
#include <graphics/Graphics.hpp>
#include <structures/Mouse.hpp>
namespace sdlu {
// TODO: Eventually we should initialize things once the object gets created
extern int Initialize();
extern void Quit();
}

8
SDLU/Util.hpp → include/Util.hpp
View file

@ -24,4 +24,10 @@ typedef uint32_t Uint32;
typedef int32_t Int32;
typedef uint64_t Uint64;
typedef int64_t Int64;
typedef int64_t Int64;
#define THROW_IF( condition, exception ) ( condition ? throw exception : false)
#define THROW_IF_NOT( condition, exception ) ( THROW_IF(!condition, exception) )
#define SDLU_BEGIN namespace sdlu {
#define SDLU_END }

0
SDLU/graphics/Graphics.hpp → include/graphics/Graphics.hpp
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79
include/graphics/RenderTarget.hpp Normal file
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@ -0,0 +1,79 @@
/**
* @file RenderTarget
* @brief Contains rendering related objects
* @author Lauchmelder23
* @date 20.05.2020
*/
#pragma once
#include <chrono>
#include "structures/Color.hpp"
#include "graphics/drawable/Drawable.hpp"
struct SDL_Window;
struct SDL_Surface;
SDLU_BEGIN
/**
* @brief Acts as a wrapper for SDL_Renderer*. You can't (and shouldn't)
* instantiate this, but rather derive from it.
*/
class RenderTarget
{
public:
virtual ~RenderTarget();
/**
* @brief Clears the display
*
* @param[in] color The color to clear the display with
*/
void Clear(const Color& color = Color::Black);
/**
* @brief Draws a sdlu::Drawable to the SDL_Renderer
*
* @param[in] drawable A reference to a derived class of Drawable
*/
void Draw(const Drawable& drawable);
/**
* @brief Display the current state of the renderer to the screen
*/
void Display();
/**
* @brief Sets a maximum framerate on the display function
*
* If the maximum framerate is not 0, SDL_Delay() will be called
* after each Display() to ensure that the time between displays
* is not shorter than the framerate limit.
*
* @param[in] max The new maximum framerate
*/
void SetMaxFramerate(Uint32 max);
protected:
/**
* @brief Create Renderer and bind it to a window
*
* @param[in] target The SDL_Window to bind to
*/
RenderTarget(SDL_Window* target);
/**
* @brief Create Renderer and bind it to a texture
*
* @param[in] target The SDL_Surface to bind to
*/
RenderTarget(SDL_Surface* target);
protected:
SDL_Renderer* renderer; ///< The renderer object
private:
Uint32 m_oFramerate; ///< The current maximum framerate of the window (0 = unlimited)
std::chrono::steady_clock::time_point m_oTimeSinceLastDisplay; ///< The timepoint at which Display() was last called
};
SDLU_END

69
include/graphics/RenderWindow.hpp Normal file
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@ -0,0 +1,69 @@
/**
* @file RenderWindow.hpp
* @brief A wrapper around SDL_Window and SDL_Renderer
* @author Lauchmelder23
* @date 16.05.2020
*/
#pragma once
#include <string>
#include <chrono>
#include "structures/Vector2.hpp"
#include "structures/Color.hpp"
#include "structures/Window.hpp"
#include "graphics/RenderTarget.hpp"
SDLU_BEGIN
// TODO: Probably break up into sdlu::Window and sdlu::Renderer
// to avoid passing around the Renderer when only the Window is
// needed. (See Mouse::GetPosition for example)
/**
* @brief A class that handles window related functionality
*
* A class that combines the SDL_Window and SDL_Renderer and
* behaves similar to the sf::RenderWindow from SFML. It provides
* utility and wrappers for common operations on those objects.
*/
class RenderWindow : public Window, public RenderTarget
{
public:
/**
* @brief Default Constructor. No window or renderer is created.
*/
RenderWindow();
/**
* @brief Creates a window and renderer with the given parameters
*
* @param[in] dimension A vector containing the width and height
* @param[in] title The title of the create window
*/
RenderWindow(Vector2u dimension, const std::string& title,
Uint32 windowFlags = Window::Flags::Shown);
RenderWindow(const RenderWindow& other) = delete;
RenderWindow(const RenderWindow&& other) = delete;
virtual ~RenderWindow();
protected:
/**
* @brief Function called after Window creation
*/
virtual void OnCreate();
/**
* @brief Function called after resize event
*
* @return True if the resize event should not be returned via
* PollEvent()
*/
virtual bool OnResize();
/**
* @brief Function called after closing the window
*/
virtual void OnClose();
};
SDLU_END

30
include/graphics/drawable/Drawable.hpp Normal file
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@ -0,0 +1,30 @@
/**
* @file Drawable.hpp
* @brief The base class of everything renderable by RenderTarget
* @author Lauchmelder23
* @date 20.05.2020
*/
#pragma once
#include "Util.hpp"
struct SDL_Renderer;
SDLU_BEGIN
/**
* @brief Everything that can be rendered derives from this class.
*/
class Drawable
{
public:
Drawable(const Drawable& other) = delete;
Drawable(Drawable&& other) = delete;
Drawable& operator=(const Drawable& other) = delete;
friend class RenderTarget;
protected:
Drawable() { }
virtual void Draw(SDL_Renderer* const target) const = 0;
};
SDLU_END

157
include/graphics/drawable/Transformable.hpp Normal file
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@ -0,0 +1,157 @@
/**
* @file Transformable.hpp
* @brief Contains information for transformable objects
* @author Lauchmelder23
* @date 23.05.2020
*/
#pragma once
#include "structures/Vector2.hpp"
SDLU_BEGIN
/**
* @brief A class that stores locational information
*
* Stores position, rotation, scale and the origin of an
* object, and provides functions to get/set those values.
* "Origin" is the offset between the position and the top-left
* corner of the object.
*/
class Transformable
{
public:
/**
* @brief Default constructur
*/
Transformable();
/**
* @brief Deconstructor
*/
virtual ~Transformable();
/**
* @brief Returns the position of the object
*
* @return A 2D vector of the position
*/
Vector2f GetPosition();
/**
* @brief Sets a new position
*
* @param[in] position A 2D vector with the new position
*/
void SetPosition(const Vector2f& position);
/**
* @brief Sets a new position
*
* @param[in] x The new x position
* @param[in] y The new y position
*/
void SetPosition(float x, float y);
/**
* @brief Adds to the current position
*
* @param[in] position A 2D movement vector
*/
void Move(const Vector2f& position);
/**
* @brief Adds to the current position
*
* @param[in] x The offset in x direction
* @param[in] y The offset in y direction
*/
void Move(float x, float y);
/**
* @brief Gets the current local origin
*
* @return A 2D vector with the offset
*/
Vector2f GetOrigin();
/**
* @brief Sets a new local origin
*
* @param[in] origin A 2D vector with the new origin
*/
void SetOrigin(const Vector2f& origin);
/**
* @brief Sets a new local origin
*
* @param[in] x The new x component of the origin
* @param[in] y The new y component of the origin
*/
void SetOrigin(float x, float y);
/**
* @brief Gets the current scale of the object
*
* @return A 2D vector with the scale in x- and y-direction
*/
Vector2f GetScale();
/**
* @brief Sets a new scale
*
* @param[in] scale A 2D vector with the new scale
*/
void SetScale(const Vector2f& scale);
/**
* @brief Sets a new scale
*
* @param[in] x The new scale in x direction
* @param[in] y The new scale in y direction
*/
void SetScale(float x, float y);
/**
* @brief Scales the object by some amount
*
* @param[in] scale The amount to scale by in x- and y-direction
*/
void Scale(const Vector2f& scale);
/**
* @brief Scales the object by some amount
*
* @param[in] x The amount to scale by in x direction
* @param[in] y The amount to scale by in y direction
*/
void Scale(float x, float y);
/**
* @brief Gets the current rotation
*
* @return The rotation in degrees
*/
float GetRotation();
/**
* @brief Sets a new rotation
*
* @param[in] angle The new rotation in degrees
*/
void SetRotation(float angle);
/**
* @brief Rotates by some amount
*
* @param[in] angle The angle to rotate by in degrees
*/
void Rotate(float angle);
protected:
Vector2f position; ///< Position of the object
Vector2f origin; ///< Offset of the top-left corner from the position
Vector2f scale; ///< Scale of the object
float rotation; ///< Rotation of the object (in degrees)
};
SDLU_END

2
SDLU/graphics/drawable/shapes/Rectangle.hpp → include/graphics/drawable/shapes/Rectangle.hpp
View file

@ -8,8 +8,6 @@
#include "Shape.hpp"
#include <SDL.h>
namespace sdlu
{
class Rectangle :

45
include/graphics/drawable/shapes/Shape.hpp Normal file
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@ -0,0 +1,45 @@
/**
* @file Shape.hpp
* @brief The base class for all native SDLU shapes
* @author Lauchmelder23
* @date 23.05.2020
*/
#pragma once
#include "graphics/drawable/Drawable.hpp"
#include "graphics/drawable/Transformable.hpp"
#include "structures/Color.hpp"
SDLU_BEGIN
/**
* @brief The non-instantiable base class for all SDLU shapes
*/
class Shape :
public Drawable, public Transformable
{
public:
/**
* @brief Deconstructor
*/
virtual ~Shape();
/**
* @brief Sets the color of the shape
*/
void SetColor(const Color& color);
/**
* @brief Gets the color of the shape
*/
Color GetColor();
protected:
/**
* @brief Default constructor
*/
Shape();
protected:
Color color;
};
SDLU_END

7
SDLU/structures/Color.hpp → include/structures/Color.hpp
View file

@ -6,10 +6,9 @@
*/
#pragma once
#include <Util.hpp>
#include "Util.hpp"
namespace sdlu
{
SDLU_BEGIN
/**
* @brief A structure holding color data
*
@ -167,4 +166,4 @@ namespace sdlu
*/
friend bool operator!=(const Color& left, const Color& right);
};
}
SDLU_END

75
include/structures/Mouse.hpp Normal file
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@ -0,0 +1,75 @@
/**
* @file Mouse.hpp
* @brief A static class to provide easy handling of the mouse
* @author Lauchmelder23
* @date 19.05.2020
*/
#pragma once
#include "structures/Vector2.hpp"
#include "graphics/RenderWindow.hpp"
SDLU_BEGIN
/**
* @brief A static class that contains/handles data about
* mouse position and button states
*/
class Mouse
{
public:
/**
* @brief Mouse buttons
*/
enum class Button {
Left = 1,
Right = 2,
Middle = 3,
XButton1 = 4,
XButton2 = 5
};
/**
* @brief Returns the current mouse button state
*
* @return A 32-bit mask of the current button state
*/
static Uint32 GetButtonState();
/**
* @brief Checks if a specific button is pressed
*
* @param[in] button The button to check
* @return True if the button is pressed
*/
static bool IsButtonDown(Button button);
/**
* @brief Gets the absolute position of the mouse
*
* @return Current mouse position relative to screen
*/
static Vector2i GetPosition();
/**
* @brief Gets current relative position of the mouse
*
* @param[in] relativeTo The window the mouse position should be relative to
* @return The position of the mouse relative to the top left of the passed window object
*/
static Vector2i GetPosition(const RenderWindow& relativeTo);
/**
* @brief Sets the absolute position of the mouse
*
* @param[in] position A 2D vector of the new position
*/
static void SetPosition(const Vector2i& position);
/**
* @brief Sets current relative position of the mouse
*
* @param[in] position A 2D vector of the new position
* @param[in] relativeTo The window the mouse position should be relative to
*/
static void SetPosition(const Vector2i& position, const RenderWindow& relativeTo);
};
SDLU_END

154
include/structures/Vector2.hpp Normal file
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@ -0,0 +1,154 @@
/**
* @file Vector2.hpp
* @brief Provides a structure for simple vector calculations
* @author Lauchmelder23
* @date 16.05.2020
*/
#pragma once
#include <type_traits>
#include "Util.hpp"
SDLU_BEGIN
/**
* @brief A struct to handle basic 2D vector operations.
*
* @tparam T The (arithmetical) type of the vector components
*/
template<
typename T,
typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type
> struct Vector2
{
T x; ///< x component
T y; ///< y component
//################## CONSTRUCTORS ##################//
/// Initializes a zero vector
Vector2() :
x(0), y(0)
{
// Empty
}
/// Initializes a vector with default values
Vector2(T x, T y) :
x(x), y(y)
{
// Empty
}
/// Copies the components of a vector
Vector2(const Vector2<T>& other) :
x(other.x), y(other.y)
{
// Empty
}
//################## OPERATORS ##################//
friend Vector2<T> operator-(const Vector2<T>& right)
{
return Vector2<T>(-right.x, -right.y);
}
friend Vector2<T> operator+(const Vector2<T>& left, const Vector2<T>& right)
{
return Vector2<T>(left.x + right.x, left.y + right.y);
}
friend Vector2<T> operator-(const Vector2<T>& left, const Vector2<T>& right)
{
return left + (-right);
}
friend Vector2<T> operator*(const Vector2<T>& left, const Vector2<T>& right)
{
return Vector2<T>(left.x * right.x, left.y * right.y);
}
friend Vector2<T> operator/(const Vector2<T>& left, const Vector2<T>& right)
{
return Vector2<T>(left.x / right.x, left.y / right.y);
}
friend Vector2<T> operator*(T left, const Vector2<T>& right)
{
return Vector2<T>(left * right.x, left * right.y);
}
friend Vector2<T> operator*(const Vector2<T>& left, T right)
{
return right * left;
}
friend Vector2<T> operator/(const Vector2<T>& left, T right)
{
return Vector2<T>(left.x / right, left.y / right);
}
friend Vector2<T>& operator+=(Vector2<T>& left, const Vector2<T>& right)
{
left.x += right.x;
left.y += right.y;
return left;
}
friend Vector2<T>& operator-=(Vector2<T>& left, const Vector2<T>& right)
{
left += (-right);
return left;
}
friend Vector2<T>& operator*=(Vector2<T>& left, const Vector2<T>& right)
{
left.x *= right.x;
left.y *= right.y;
return left;
}
friend Vector2<T>& operator/(Vector2<T>& left, const Vector2<T>& right)
{
left.x /= right.x;
left.y /= right.y;
return left;
}
friend Vector2<T>& operator*=(Vector2<T>& left, T right)
{
left.x *= right;
left.y *= right;
return left;
}
friend Vector2<T>& operator/=(Vector2<T>& left, T right)
{
left.x /= right;
left.y /= right;
return left;
}
friend bool operator==(const Vector2<T>& left, const Vector2<T>& right)
{
return ((left.x == right.x) && (left.y == right.y));
}
friend bool operator!=(const Vector2<T>& left, const Vector2<T>& right)
{
return !(left == right);
}
};
//################## TYPEDEFS ##################//
typedef Vector2<unsigned int> Vector2u, Vec2u;
typedef Vector2<int> Vector2i, Vec2i;
typedef Vector2<float> Vector2f, Vec2f;
typedef Vector2<double> Vector2d, Vec2d;
SDLU_END

279
include/structures/Window.hpp Normal file
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@ -0,0 +1,279 @@
/**
* @file Window.hpp
* @brief Contains window related objects
* @author Lauchmelder23
* @date 20.05.20
*/
#pragma once
#include <string>
#include <chrono>
#include "Util.hpp"
#include "structures/Vector2.hpp"
struct SDL_Window;
union SDL_Event;
struct SDL_Surface;
struct SDL_Cursor;
SDLU_BEGIN
/**
* @brief Stores information about a window. You probably want RenderWindow.
*/
class Window
{
public:
enum Flags {
Fullscreen = ((Uint32)1 << 0),
OpenGL = ((Uint32)1 << 1),
Shown = ((Uint32)1 << 2),
Hidden = ((Uint32)1 << 3),
Borderless = ((Uint32)1 << 4),
Resizable = ((Uint32)1 << 5),
Minimized = ((Uint32)1 << 6),
Maximized = ((Uint32)1 << 7),
InputGrabbed = ((Uint32)1 << 8),
InputFocus = ((Uint32)1 << 9),
MouseFocus = ((Uint32)1 << 10),
Foregin = ((Uint32)1 << 11),
FullscreenDesktop = (Fullscreen | ((Uint32)1 << 12)),
};
public:
/**
* @brief Default Constructor. No window is created.
*/
Window();
/**
* @brief Creates a window with the given parameters
*
* @param[in] dimension A vector containing the width and height
* @param[in] title The title of the create window
*/
Window(Vector2u dimension, const std::string& title,
Uint32 windowFlags);
Window(const Window& other) = delete;
Window(Window&& other) = delete;
virtual ~Window();
/**
* @brief Creates the window.
*
* This function creates the SDL_Window object. If
* they were already created the function does nothing and returns.
* If it fails to create either, an ObjectCreationException is thrown.
*
* @param[in] dimension A vector containing the width and height
* @param[in] title The title of the create window
*/
void Create(Vector2u dimension, const std::string& title,
Uint32 windowFlags);
/**
* @brief Destroys the window.
*/
void Close();
/**
* @brief Wether or not the window object is created
*
* @return True if the window is open, False if not
*/
bool IsOpen() const;
/**
* @brief A non-blocking event polling function
*
* @param[out] event An object to write the latest event to
* @return True if there was an event, False if there wasn't
*/
bool PollEvent(SDL_Event* event);
/**
* @brief A blocking event polling function
*
* @param[out] event An object to write the latest event to
* @return True if an event was polled
*/
bool WaitEvent(SDL_Event* event);
/**
* @brief Returns the current position of the window
*
* @return A vector with the current position relative to the top left corner of the display
*/
Vector2i GetPosition() const;
/**
* @brief Sets a new window position
*
* @param[in] position A vector with the new position
*/
void SetPosition(Vector2i position);
/**
* @brief Sets a new window position
*
* @param[in] x The new x position
* @param[in] y The new y position
*/
void SetPosition(int x, int y);
/**
* @brief Gets the current window size
*
* @return A vector with the windows size
*/
Vector2u GetSize() const;
/**
* @brief Sets a new window size
*
* @param[in] size A vector with the new size
*/
void SetSize(Vector2u size);
/**
* @brief Sets a new window size
*
* @param[in] width The new width of the window
* @param[in] height The new height of the window
*/
void SetSize(unsigned int width, unsigned int height);
/**
* @brief Gets the current window title
*
* @return The title of the widnow
*/
std::string GetTitle() const;
/**
* @brief Sets a new window title
*
* @param[in] title The new window title
*/
void SetTitle(std::string title);
/**
* @brief Returns a constant pointer to the SDL_Window
*
* @return A constant pointer to SDL_Window
*/
SDL_Window* const GetWindow() const;
/**
* @brief Set the windows visibility
*
* @param[in] visible The new visibility setting
*/
void SetVisible(bool visible);
/**
* @brief (De)activates VSync !globally!
*
* @param[in] vsync Wether to enable or disable vsync
*/
void SetVsync(bool vsync);
/**
* @brief Hides/Shows the mouse cursor inside the windos
*
* @param[in] visible The new visibility of the cursor
*/
void SetMouseCursorVisible(bool visible);
/**
* @brief Traps the mouse cursor inside the window
*
* @param[in] grabbed Wether to (un)trap the cursor
*/
void SetMouseCursorGrabbed(bool grabbed);
/**
* @brief Sets the window icon to an array of RGBA values
*
* @param[in] width Width of the icon (in px)
* @param[in] height Height of the icon (in px)
* @param[in] pixels Array of color data (RGBA as seperate 8-Bit integer values)
*/
void SetIcon(Uint32 width, Uint32 height, const Uint8* pixels);
/**
* @brief Sets the window icon to an array of RGBA values
*
* @param[in] width Width of the icon (in px)
* @param[in] height Height of the icon (in px)
* @param[in] pixels Array of color data (RGBA as one 32-Bit integer value)
*/
void SetIcon(Uint32 width, Uint32 height, const Uint32* pixels);
/**
* @brief Sets the window icon to a SDL_Surface
*
* @param[in] icon A SDL_Surface* holding the icon data
*/
void SetIcon(SDL_Surface* icon);
/**
* @brief Changes the mouse cursor
*
* @param[in] cursor A pointer to a SDL_Cursor containing cursor data
*/
void SetMouseCursor(SDL_Cursor* cursor);
/**
* @brief Changes the mouse cursor
*
* @param[in] surface A pointer to a SDL_Surface containing sprite data
* @param[in] clickspot The effective position of the cursor relative to the top left of the sprite
*/
void SetMouseCursor(SDL_Surface* surface, Vector2u clickspot);
/**
* @brief Changes the mouse cursor
*
* @param[in] pixels An array of color data (RGBA as seperate 8-bit values)
* @param[in] size Size of the cursor
* @param[in] clickspot The effective position of the cursor relative to the top left of the sprite
*/
void SetMouseCursor(const Uint8* pixels, Vector2u size, Vector2u clickspot);
/**
* @brief Changes the mouse cursor
*
* @param[in] pixels An array of color data (RGBA as one 32-bit value)
* @param[in] size Size of the cursor
* @param[in] clickspot The effective position of the cursor relative to the top left of the sprite
*/
void SetMouseCursor(const Uint32* pixels, Vector2u size, Vector2u clickspot);
protected:
SDL_Window* window;
protected:
/**
* @brief This function is called after Create() finishes
*/
virtual void OnCreate();
/**
* @brief This function is called after a SDL_WINDOWEVENT_RESIZED is polled.
* (PollEvent() must be called for this to work)
*
* @return True if the resize event should be popped from the event queue before
returning the polled event to the user
*/
virtual bool OnResize();
/**
* @brief This function is called after Close() finishes.
*/
virtual void OnClose();
};
SDLU_END

20
lib/sdl2_gfx/CMakeLists.txt Normal file
View file

@ -0,0 +1,20 @@
file(GLOB_RECURSE sdl2gfx_includes
"include/*.h"
)
file(GLOB_RECURSE sdl2gfx_sources
"src/*.c"
)
add_library(sdl2_gfx
${sdl2gfx_includes} ${sdl2gfx_sources}
)
target_include_directories(sdl2_gfx PUBLIC
SDL2
"include"
)
target_link_libraries(sdl2_gfx PUBLIC
SDL2::SDL2
)

100
lib/sdl2_gfx/include/SDL2_framerate.h Normal file
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@ -0,0 +1,100 @@
/*
SDL2_framerate.h: framerate manager
Copyright (C) 2012-2014 Andreas Schiffler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
Andreas Schiffler -- aschiffler at ferzkopp dot net
*/
#ifndef _SDL2_framerate_h
#define _SDL2_framerate_h
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* --- */
#include "SDL.h"
/* --------- Definitions */
/*!
\brief Highest possible rate supported by framerate controller in Hz (1/s).
*/
#define FPS_UPPER_LIMIT 200
/*!
\brief Lowest possible rate supported by framerate controller in Hz (1/s).
*/
#define FPS_LOWER_LIMIT 1
/*!
\brief Default rate of framerate controller in Hz (1/s).
*/
#define FPS_DEFAULT 30
/*!
\brief Structure holding the state and timing information of the framerate controller.
*/
typedef struct {
Uint32 framecount;
float rateticks;
Uint32 baseticks;
Uint32 lastticks;
Uint32 rate;
} FPSmanager;
/* ---- Function Prototypes */
#ifdef _MSC_VER
# if defined(DLL_EXPORT) && !defined(LIBSDL2_GFX_DLL_IMPORT)
# define SDL2_FRAMERATE_SCOPE __declspec(dllexport)
# else
# ifdef LIBSDL2_GFX_DLL_IMPORT
# define SDL2_FRAMERATE_SCOPE __declspec(dllimport)
# endif
# endif
#endif
#ifndef SDL2_FRAMERATE_SCOPE
# define SDL2_FRAMERATE_SCOPE extern
#endif
/* Functions return 0 or value for sucess and -1 for error */
SDL2_FRAMERATE_SCOPE void SDL_initFramerate(FPSmanager * manager);
SDL2_FRAMERATE_SCOPE int SDL_setFramerate(FPSmanager * manager, Uint32 rate);
SDL2_FRAMERATE_SCOPE int SDL_getFramerate(FPSmanager * manager);
SDL2_FRAMERATE_SCOPE int SDL_getFramecount(FPSmanager * manager);
SDL2_FRAMERATE_SCOPE Uint32 SDL_framerateDelay(FPSmanager * manager);
/* --- */
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#endif /* _SDL2_framerate_h */

241
lib/sdl2_gfx/include/SDL2_gfxPrimitives.h Normal file
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@ -0,0 +1,241 @@
/*
SDL2_gfxPrimitives.h: graphics primitives for SDL
Copyright (C) 2012-2014 Andreas Schiffler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
Andreas Schiffler -- aschiffler at ferzkopp dot net
*/
#ifndef _SDL2_gfxPrimitives_h
#define _SDL2_gfxPrimitives_h
#include <math.h>
#ifndef M_PI
#define M_PI 3.1415926535897932384626433832795
#endif
#include "SDL.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* ----- Versioning */
#define SDL2_GFXPRIMITIVES_MAJOR 1
#define SDL2_GFXPRIMITIVES_MINOR 0
#define SDL2_GFXPRIMITIVES_MICRO 3
/* ---- Function Prototypes */
#ifdef _MSC_VER
# if defined(DLL_EXPORT) && !defined(LIBSDL2_GFX_DLL_IMPORT)
# define SDL2_GFXPRIMITIVES_SCOPE __declspec(dllexport)
# else
# ifdef LIBSDL2_GFX_DLL_IMPORT
# define SDL2_GFXPRIMITIVES_SCOPE __declspec(dllimport)
# endif
# endif
#endif
#ifndef SDL2_GFXPRIMITIVES_SCOPE
# define SDL2_GFXPRIMITIVES_SCOPE extern
#endif
/* Note: all ___Color routines expect the color to be in format 0xRRGGBBAA */
/* Pixel */
SDL2_GFXPRIMITIVES_SCOPE int pixelColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int pixelRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Horizontal line */
SDL2_GFXPRIMITIVES_SCOPE int hlineColor(SDL_Renderer * renderer, Sint16 x1, Sint16 x2, Sint16 y, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int hlineRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 x2, Sint16 y, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Vertical line */
SDL2_GFXPRIMITIVES_SCOPE int vlineColor(SDL_Renderer * renderer, Sint16 x, Sint16 y1, Sint16 y2, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int vlineRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y1, Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Rectangle */
SDL2_GFXPRIMITIVES_SCOPE int rectangleColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int rectangleRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1,
Sint16 x2, Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Rounded-Corner Rectangle */
SDL2_GFXPRIMITIVES_SCOPE int roundedRectangleColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 rad, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int roundedRectangleRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1,
Sint16 x2, Sint16 y2, Sint16 rad, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Filled rectangle (Box) */
SDL2_GFXPRIMITIVES_SCOPE int boxColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int boxRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2,
Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Rounded-Corner Filled rectangle (Box) */
SDL2_GFXPRIMITIVES_SCOPE int roundedBoxColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 rad, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int roundedBoxRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2,
Sint16 y2, Sint16 rad, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Line */
SDL2_GFXPRIMITIVES_SCOPE int lineColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int lineRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1,
Sint16 x2, Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* AA Line */
SDL2_GFXPRIMITIVES_SCOPE int aalineColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int aalineRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1,
Sint16 x2, Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Thick Line */
SDL2_GFXPRIMITIVES_SCOPE int thickLineColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2,
Uint8 width, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int thickLineRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2,
Uint8 width, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Circle */
SDL2_GFXPRIMITIVES_SCOPE int circleColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int circleRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Arc */
SDL2_GFXPRIMITIVES_SCOPE int arcColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad, Sint16 start, Sint16 end, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int arcRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad, Sint16 start, Sint16 end,
Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* AA Circle */
SDL2_GFXPRIMITIVES_SCOPE int aacircleColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int aacircleRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y,
Sint16 rad, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Filled Circle */
SDL2_GFXPRIMITIVES_SCOPE int filledCircleColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 r, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int filledCircleRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y,
Sint16 rad, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Ellipse */
SDL2_GFXPRIMITIVES_SCOPE int ellipseColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rx, Sint16 ry, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int ellipseRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y,
Sint16 rx, Sint16 ry, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* AA Ellipse */
SDL2_GFXPRIMITIVES_SCOPE int aaellipseColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rx, Sint16 ry, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int aaellipseRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y,
Sint16 rx, Sint16 ry, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Filled Ellipse */
SDL2_GFXPRIMITIVES_SCOPE int filledEllipseColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rx, Sint16 ry, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int filledEllipseRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y,
Sint16 rx, Sint16 ry, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Pie */
SDL2_GFXPRIMITIVES_SCOPE int pieColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad,
Sint16 start, Sint16 end, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int pieRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad,
Sint16 start, Sint16 end, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Filled Pie */
SDL2_GFXPRIMITIVES_SCOPE int filledPieColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad,
Sint16 start, Sint16 end, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int filledPieRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y, Sint16 rad,
Sint16 start, Sint16 end, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Trigon */
SDL2_GFXPRIMITIVES_SCOPE int trigonColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int trigonRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3,
Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* AA-Trigon */
SDL2_GFXPRIMITIVES_SCOPE int aatrigonColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int aatrigonRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3,
Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Filled Trigon */
SDL2_GFXPRIMITIVES_SCOPE int filledTrigonColor(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int filledTrigonRGBA(SDL_Renderer * renderer, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3,
Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Polygon */
SDL2_GFXPRIMITIVES_SCOPE int polygonColor(SDL_Renderer * renderer, const Sint16 * vx, const Sint16 * vy, int n, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int polygonRGBA(SDL_Renderer * renderer, const Sint16 * vx, const Sint16 * vy,
int n, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* AA-Polygon */
SDL2_GFXPRIMITIVES_SCOPE int aapolygonColor(SDL_Renderer * renderer, const Sint16 * vx, const Sint16 * vy, int n, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int aapolygonRGBA(SDL_Renderer * renderer, const Sint16 * vx, const Sint16 * vy,
int n, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Filled Polygon */
SDL2_GFXPRIMITIVES_SCOPE int filledPolygonColor(SDL_Renderer * renderer, const Sint16 * vx, const Sint16 * vy, int n, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int filledPolygonRGBA(SDL_Renderer * renderer, const Sint16 * vx,
const Sint16 * vy, int n, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Textured Polygon */
SDL2_GFXPRIMITIVES_SCOPE int texturedPolygon(SDL_Renderer * renderer, const Sint16 * vx, const Sint16 * vy, int n, SDL_Surface * texture,int texture_dx,int texture_dy);
/* Bezier */
SDL2_GFXPRIMITIVES_SCOPE int bezierColor(SDL_Renderer * renderer, const Sint16 * vx, const Sint16 * vy, int n, int s, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int bezierRGBA(SDL_Renderer * renderer, const Sint16 * vx, const Sint16 * vy,
int n, int s, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Characters/Strings */
SDL2_GFXPRIMITIVES_SCOPE void gfxPrimitivesSetFont(const void *fontdata, Uint32 cw, Uint32 ch);
SDL2_GFXPRIMITIVES_SCOPE void gfxPrimitivesSetFontRotation(Uint32 rotation);
SDL2_GFXPRIMITIVES_SCOPE int characterColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, char c, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int characterRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y, char c, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
SDL2_GFXPRIMITIVES_SCOPE int stringColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, const char *s, Uint32 color);
SDL2_GFXPRIMITIVES_SCOPE int stringRGBA(SDL_Renderer * renderer, Sint16 x, Sint16 y, const char *s, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#endif /* _SDL2_gfxPrimitives_h */

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/*
SDL2_imageFilter.h: byte-image "filter" routines
Copyright (C) 2012-2014 Andreas Schiffler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
Andreas Schiffler -- aschiffler at ferzkopp dot net
*/
#ifndef _SDL2_imageFilter_h
#define _SDL2_imageFilter_h
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* ---- Function Prototypes */
#ifdef _MSC_VER
# if defined(DLL_EXPORT) && !defined(LIBSDL2_GFX_DLL_IMPORT)
# define SDL2_IMAGEFILTER_SCOPE __declspec(dllexport)
# else
# ifdef LIBSDL2_GFX_DLL_IMPORT
# define SDL2_IMAGEFILTER_SCOPE __declspec(dllimport)
# endif
# endif
#endif
#ifndef SDL2_IMAGEFILTER_SCOPE
# define SDL2_IMAGEFILTER_SCOPE extern
#endif
/* Comments: */
/* 1.) MMX functions work best if all data blocks are aligned on a 32 bytes boundary. */
/* 2.) Data that is not within an 8 byte boundary is processed using the C routine. */
/* 3.) Convolution routines do not have C routines at this time. */
// Detect MMX capability in CPU
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterMMXdetect(void);
// Force use of MMX off (or turn possible use back on)
SDL2_IMAGEFILTER_SCOPE void SDL_imageFilterMMXoff(void);
SDL2_IMAGEFILTER_SCOPE void SDL_imageFilterMMXon(void);
//
// All routines return:
// 0 OK
// -1 Error (internal error, parameter error)
//
// SDL_imageFilterAdd: D = saturation255(S1 + S2)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterAdd(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterMean: D = S1/2 + S2/2
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterMean(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterSub: D = saturation0(S1 - S2)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterSub(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterAbsDiff: D = | S1 - S2 |
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterAbsDiff(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterMult: D = saturation(S1 * S2)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterMult(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterMultNor: D = S1 * S2 (non-MMX)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterMultNor(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterMultDivby2: D = saturation255(S1/2 * S2)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterMultDivby2(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest,
unsigned int length);
// SDL_imageFilterMultDivby4: D = saturation255(S1/2 * S2/2)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterMultDivby4(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest,
unsigned int length);
// SDL_imageFilterBitAnd: D = S1 & S2
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterBitAnd(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterBitOr: D = S1 | S2
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterBitOr(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterDiv: D = S1 / S2 (non-MMX)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterDiv(unsigned char *Src1, unsigned char *Src2, unsigned char *Dest, unsigned int length);
// SDL_imageFilterBitNegation: D = !S
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterBitNegation(unsigned char *Src1, unsigned char *Dest, unsigned int length);
// SDL_imageFilterAddByte: D = saturation255(S + C)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterAddByte(unsigned char *Src1, unsigned char *Dest, unsigned int length, unsigned char C);
// SDL_imageFilterAddUint: D = saturation255(S + (uint)C)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterAddUint(unsigned char *Src1, unsigned char *Dest, unsigned int length, unsigned int C);
// SDL_imageFilterAddByteToHalf: D = saturation255(S/2 + C)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterAddByteToHalf(unsigned char *Src1, unsigned char *Dest, unsigned int length,
unsigned char C);
// SDL_imageFilterSubByte: D = saturation0(S - C)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterSubByte(unsigned char *Src1, unsigned char *Dest, unsigned int length, unsigned char C);
// SDL_imageFilterSubUint: D = saturation0(S - (uint)C)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterSubUint(unsigned char *Src1, unsigned char *Dest, unsigned int length, unsigned int C);
// SDL_imageFilterShiftRight: D = saturation0(S >> N)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterShiftRight(unsigned char *Src1, unsigned char *Dest, unsigned int length, unsigned char N);
// SDL_imageFilterShiftRightUint: D = saturation0((uint)S >> N)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterShiftRightUint(unsigned char *Src1, unsigned char *Dest, unsigned int length, unsigned char N);
// SDL_imageFilterMultByByte: D = saturation255(S * C)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterMultByByte(unsigned char *Src1, unsigned char *Dest, unsigned int length, unsigned char C);
// SDL_imageFilterShiftRightAndMultByByte: D = saturation255((S >> N) * C)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterShiftRightAndMultByByte(unsigned char *Src1, unsigned char *Dest, unsigned int length,
unsigned char N, unsigned char C);
// SDL_imageFilterShiftLeftByte: D = (S << N)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterShiftLeftByte(unsigned char *Src1, unsigned char *Dest, unsigned int length,
unsigned char N);
// SDL_imageFilterShiftLeftUint: D = ((uint)S << N)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterShiftLeftUint(unsigned char *Src1, unsigned char *Dest, unsigned int length,
unsigned char N);
// SDL_imageFilterShiftLeft: D = saturation255(S << N)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterShiftLeft(unsigned char *Src1, unsigned char *Dest, unsigned int length, unsigned char N);
// SDL_imageFilterBinarizeUsingThreshold: D = S >= T ? 255:0
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterBinarizeUsingThreshold(unsigned char *Src1, unsigned char *Dest, unsigned int length,
unsigned char T);
// SDL_imageFilterClipToRange: D = (S >= Tmin) & (S <= Tmax) 255:0
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterClipToRange(unsigned char *Src1, unsigned char *Dest, unsigned int length,
unsigned char Tmin, unsigned char Tmax);
// SDL_imageFilterNormalizeLinear: D = saturation255((Nmax - Nmin)/(Cmax - Cmin)*(S - Cmin) + Nmin)
SDL2_IMAGEFILTER_SCOPE int SDL_imageFilterNormalizeLinear(unsigned char *Src, unsigned char *Dest, unsigned int length, int Cmin,
int Cmax, int Nmin, int Nmax);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#endif /* _SDL_imageFilter_h */

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/*
SDL2_rotozoom.c: rotozoomer, zoomer and shrinker for 32bit or 8bit surfaces
Copyright (C) 2012-2014 Andreas Schiffler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
Andreas Schiffler -- aschiffler at ferzkopp dot net
*/
#ifndef _SDL2_rotozoom_h
#define _SDL2_rotozoom_h
#include <math.h>
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
#ifndef M_PI
#define M_PI 3.1415926535897932384626433832795
#endif
#include "SDL.h"
/* ---- Defines */
/*!
\brief Disable anti-aliasing (no smoothing).
*/
#define SMOOTHING_OFF 0
/*!
\brief Enable anti-aliasing (smoothing).
*/
#define SMOOTHING_ON 1
/* ---- Function Prototypes */
#ifdef _MSC_VER
# if defined(DLL_EXPORT) && !defined(LIBSDL2_GFX_DLL_IMPORT)
# define SDL2_ROTOZOOM_SCOPE __declspec(dllexport)
# else
# ifdef LIBSDL2_GFX_DLL_IMPORT
# define SDL2_ROTOZOOM_SCOPE __declspec(dllimport)
# endif
# endif
#endif
#ifndef SDL2_ROTOZOOM_SCOPE
# define SDL2_ROTOZOOM_SCOPE extern
#endif
/*
Rotozoom functions
*/
SDL2_ROTOZOOM_SCOPE SDL_Surface *rotozoomSurface(SDL_Surface * src, double angle, double zoom, int smooth);
SDL2_ROTOZOOM_SCOPE SDL_Surface *rotozoomSurfaceXY
(SDL_Surface * src, double angle, double zoomx, double zoomy, int smooth);
SDL2_ROTOZOOM_SCOPE void rotozoomSurfaceSize(int width, int height, double angle, double zoom, int *dstwidth,
int *dstheight);
SDL2_ROTOZOOM_SCOPE void rotozoomSurfaceSizeXY
(int width, int height, double angle, double zoomx, double zoomy,
int *dstwidth, int *dstheight);
/*
Zooming functions
*/
SDL2_ROTOZOOM_SCOPE SDL_Surface *zoomSurface(SDL_Surface * src, double zoomx, double zoomy, int smooth);
SDL2_ROTOZOOM_SCOPE void zoomSurfaceSize(int width, int height, double zoomx, double zoomy, int *dstwidth, int *dstheight);
/*
Shrinking functions
*/
SDL2_ROTOZOOM_SCOPE SDL_Surface *shrinkSurface(SDL_Surface * src, int factorx, int factory);
/*
Specialized rotation functions
*/
SDL2_ROTOZOOM_SCOPE SDL_Surface* rotateSurface90Degrees(SDL_Surface* src, int numClockwiseTurns);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#endif /* _SDL2_rotozoom_h */

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/*
SDL2_framerate.c: framerate manager
Copyright (C) 2012-2014 Andreas Schiffler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
Andreas Schiffler -- aschiffler at ferzkopp dot net
*/
#include "SDL2_framerate.h"
/*!
\brief Internal wrapper to SDL_GetTicks that ensures a non-zero return value.
\return The tick count.
*/
Uint32 _getTicks()
{
Uint32 ticks = SDL_GetTicks();
/*
* Since baseticks!=0 is used to track initialization
* we need to ensure that the tick count is always >0
* since SDL_GetTicks may not have incremented yet and
* return 0 depending on the timing of the calls.
*/
if (ticks == 0) {
return 1;
} else {
return ticks;
}
}
/*!
\brief Initialize the framerate manager.
Initialize the framerate manager, set default framerate of 30Hz and
reset delay interpolation.
\param manager Pointer to the framerate manager.
*/
void SDL_initFramerate(FPSmanager * manager)
{
/*
* Store some sane values
*/
manager->framecount = 0;
manager->rate = FPS_DEFAULT;
manager->rateticks = (1000.0f / (float) FPS_DEFAULT);
manager->baseticks = _getTicks();
manager->lastticks = manager->baseticks;
}
/*!
\brief Set the framerate in Hz
Sets a new framerate for the manager and reset delay interpolation.
Rate values must be between FPS_LOWER_LIMIT and FPS_UPPER_LIMIT inclusive to be accepted.
\param manager Pointer to the framerate manager.
\param rate The new framerate in Hz (frames per second).
\return 0 for sucess and -1 for error.
*/
int SDL_setFramerate(FPSmanager * manager, Uint32 rate)
{
if ((rate >= FPS_LOWER_LIMIT) && (rate <= FPS_UPPER_LIMIT)) {
manager->framecount = 0;
manager->rate = rate;
manager->rateticks = (1000.0f / (float) rate);
return (0);
} else {
return (-1);
}
}
/*!
\brief Return the current target framerate in Hz
Get the currently set framerate of the manager.
\param manager Pointer to the framerate manager.
\return Current framerate in Hz or -1 for error.
*/
int SDL_getFramerate(FPSmanager * manager)
{
if (manager == NULL) {
return (-1);
} else {
return ((int)manager->rate);
}
}
/*!
\brief Return the current framecount.
Get the current framecount from the framerate manager.
A frame is counted each time SDL_framerateDelay is called.
\param manager Pointer to the framerate manager.
\return Current frame count or -1 for error.
*/
int SDL_getFramecount(FPSmanager * manager)
{
if (manager == NULL) {
return (-1);
} else {
return ((int)manager->framecount);
}
}
/*!
\brief Delay execution to maintain a constant framerate and calculate fps.
Generate a delay to accomodate currently set framerate. Call once in the
graphics/rendering loop. If the computer cannot keep up with the rate (i.e.
drawing too slow), the delay is zero and the delay interpolation is reset.
\param manager Pointer to the framerate manager.
\return The time that passed since the last call to the function in ms. May return 0.
*/
Uint32 SDL_framerateDelay(FPSmanager * manager)
{
Uint32 current_ticks;
Uint32 target_ticks;
Uint32 the_delay;
Uint32 time_passed = 0;
/*
* No manager, no delay
*/
if (manager == NULL) {
return 0;
}
/*
* Initialize uninitialized manager
*/
if (manager->baseticks == 0) {
SDL_initFramerate(manager);
}
/*
* Next frame
*/
manager->framecount++;
/*
* Get/calc ticks
*/
current_ticks = _getTicks();
time_passed = current_ticks - manager->lastticks;
manager->lastticks = current_ticks;
target_ticks = manager->baseticks + (Uint32) ((float) manager->framecount * manager->rateticks);
if (current_ticks <= target_ticks) {
the_delay = target_ticks - current_ticks;
SDL_Delay(the_delay);
} else {
manager->framecount = 0;
manager->baseticks = _getTicks();
}
return time_passed;
}

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lib/sdl2_gfx/src/SDL2_rotozoom.c Normal file
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18
src/SDLU.cpp Normal file
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#include "SDLU.hpp"
#include <SDL.h>
#include "Util.hpp"
SDLU_BEGIN
int Initialize() {
return SDL_Init(SDL_INIT_EVERYTHING);
}
void Quit() {
SDL_Quit();
}
SDL_CommonEvent c;
SDLU_END

79
src/graphics/RenderTarget.cpp Normal file
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#include "graphics/RenderTarget.hpp"
#include <SDL.h>
#include <Util.hpp>
SDLU_BEGIN
RenderTarget::~RenderTarget()
{
RETURN_IF_NULLPTR(renderer);
SDL_DestroyRenderer(renderer);
}
void RenderTarget::Clear(const Color& color)
{
RETURN_IF_NULLPTR(renderer);
SDL_SetRenderDrawColor(renderer, color.r, color.g, color.b, color.a);
SDL_RenderClear(renderer);
}
void RenderTarget::Draw(const Drawable& drawable)
{
RETURN_IF_NULLPTR(renderer);
drawable.Draw(renderer);
}
void RenderTarget::Display()
{
RETURN_IF_NULLPTR(renderer);
SDL_RenderPresent(renderer);
if (m_oFramerate != 0)
{
Uint64 diff = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::steady_clock::now() - m_oTimeSinceLastDisplay).count();
if (diff < 1000 / m_oFramerate)
{
SDL_Delay(static_cast<Uint32>(1000 / m_oFramerate - diff));
}
}
m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
}
void RenderTarget::SetMaxFramerate(Uint32 max)
{
m_oFramerate = max;
}
RenderTarget::RenderTarget(SDL_Window* target) :
renderer(nullptr), m_oFramerate(0)
{
RETURN_IF_NOT_NULLPTR(renderer);
renderer = SDL_CreateRenderer(target, -1, SDL_RENDERER_ACCELERATED);
THROW_IF(IS_NULLPTR(renderer),
std::runtime_error("Failed to create SDL_Renderer* from SDL_Window*: " + std::string(SDL_GetError())));
m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
}
RenderTarget::RenderTarget(SDL_Surface* target) :
renderer(nullptr), m_oFramerate(0)
{
m_oFramerate = 0;
RETURN_IF_NOT_NULLPTR(renderer);
renderer = SDL_CreateSoftwareRenderer(target);
THROW_IF(IS_NULLPTR(renderer),
std::runtime_error("Failed to create SDL_Renderer* from SDL_Surface*: " + std::string(SDL_GetError())));
m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
}
SDLU_END

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src/graphics/RenderWindow.cpp Normal file
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#include "graphics/RenderWindow.hpp"
#include <cstring>
#include <Util.hpp>
SDLU_BEGIN
RenderWindow::RenderWindow() :
Window(), RenderTarget(window)
{
// Empty
}
RenderWindow::RenderWindow(Vector2u dimension, const std::string& title,
Uint32 windowFlags) :
Window(dimension, title, windowFlags), RenderTarget(window)
{
// Empty
}
RenderWindow::~RenderWindow()
{
// Empty
}
void RenderWindow::OnCreate()
{
}
bool RenderWindow::OnResize()
{
return false;
}
void RenderWindow::OnClose()
{
}
SDLU_END

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src/graphics/drawable/Transformable.cpp Normal file
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#include "graphics/drawable/Transformable.hpp"
SDLU_BEGIN
Transformable::Transformable() :
position(0, 0), origin(0, 0),
scale(1.f, 1.f), rotation(0.f)
{
// Empty
}
Transformable::~Transformable()
{
// Empty
}
Vector2f Transformable::GetPosition()
{
return position;
}
void Transformable::SetPosition(const Vector2f& position)
{
this->position = position;
}
void Transformable::SetPosition(float x, float y)
{
position = Vector2f(x, y);
}
void Transformable::Move(const Vector2f& position)
{
this->position += position;
}
void Transformable::Move(float x, float y)
{
position += Vector2f(x, y);
}
Vector2f Transformable::GetOrigin()
{
return origin;
}
void Transformable::SetOrigin(const Vector2f& origin)
{
this->origin = origin;
}
void Transformable::SetOrigin(float x, float y)
{
origin = Vector2f(x, y);
}
Vector2f Transformable::GetScale()
{
return scale;
}
void Transformable::SetScale(const Vector2f& scale)
{
this->scale = scale;
}
void Transformable::SetScale(float x, float y)
{
scale = Vector2f(x, y);
}
void Transformable::Scale(const Vector2f& scale)
{
this->scale += scale;
}
void Transformable::Scale(float x, float y)
{
scale += Vector2f(x, y);
}
float Transformable::GetRotation()
{
return rotation;
}
void Transformable::SetRotation(float angle)
{
rotation = angle;
}
void Transformable::Rotate(float angle)
{
rotation += angle;
}
SDLU_END

5
SDLU/graphics/drawable/shapes/Rectangle.cpp → src/graphics/drawable/shapes/Rectangle.cpp
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#include "Rectangle.hpp"
#include <graphics/drawable/shapes/Rectangle.hpp>
#include <graphics/RenderTarget.hpp>
#include <SDL.h>
namespace sdlu
{
Rectangle::Rectangle() :

2
SDLU/graphics/drawable/shapes/Shape.cpp → src/graphics/drawable/shapes/Shape.cpp
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#include "Shape.hpp"
#include <graphics/drawable/shapes/Shape.hpp>
namespace sdlu
{

162
src/structures/Color.cpp Normal file
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#include "structures/Color.hpp"
#include <math.h>
#include <cmath>
SDLU_BEGIN
const Color Color::Black = Color(0, 0, 0);
const Color Color::Red = Color(255, 0, 0);
const Color Color::Green = Color(0, 255, 0);
const Color Color::Blue = Color(0, 0, 255);
const Color Color::Yellow = Color(255, 255, 0);
const Color Color::Magenta = Color(255, 0, 255);
const Color Color::Cyan = Color(0, 255, 255);
const Color Color::White = Color(255, 255, 255);
const Color Color::Transparent = Color(0, 0, 0, 0);
Color::Color() :
r(0), g(0), b(0), a(0)
{
// Empty
}
Color::Color(Uint8 r, Uint8 g, Uint8 b, Uint8 a) :
r(r), g(g), b(b), a(a)
{
// Empty
}
Color::Color(Uint32 color) :
r((color & 0xFF000000) >> 24),
g((color & 0x00FF0000) >> 16),
b((color & 0x0000FF00) >> 8),
a((color & 0x000000FF))
{
// Empty
}
Uint32 Color::ToInt()
{
Uint32 color = 0;
color |= r << 24;
color |= g << 16;
color |= b << 8;
color |= a;
return color;
}
Color Color::FromHSV(Uint16 h, Uint8 s, Uint8 v)
{
// Normalize parameters
// H : [0, 360)
// S : [0, 1]
// V : [0, 1]
h -= std::floor(h / 360) * 360;
s = (s > 1) ? 1 : s;
v = (v > 1) ? 1 : v;
// Convert to RGBA
Uint16 H = std::floor(h / 60.f);
float f = (h / 60.f) - H;
Uint8 p = static_cast<Uint8>((v * (1 - s)) * 255);
Uint8 q = static_cast<Uint8>((v * (1 - s * f)) * 255);
Uint8 t = static_cast<Uint8>((v * (1 - s * (1 - f))) * 255);
v *= 255;
Color output;
switch (H)
{
case 0:
case 6:
output = Color(v, t, p);
break;
case 1:
output = Color(q, v, p);
break;
case 2:
output = Color(p, v, t);
break;
case 3:
output = Color(p, q, v);
break;
case 4:
output = Color(t, p, v);
break;
case 5:
output = Color(v, p, q);
break;
default:
break;
}
return output;
}
Color operator+(const Color& left, const Color& right)
{
return Color((UINT8_MAX - left.r) < right.r ? 255 : left.r + right.r,
(UINT8_MAX - left.g) < right.g ? 255 : left.g + right.g,
(UINT8_MAX - left.b) < right.b ? 255 : left.b + right.b,
(UINT8_MAX - left.a) < right.a ? 255 : left.a + right.a);
}
Color operator-(const Color& left, const Color& right)
{
return Color(left.r < right.r ? 0 : left.r - right.r,
left.g < right.g ? 0 : left.g - right.g,
left.b < right.b ? 0 : left.b - right.b,
left.a < right.a ? 0 : left.a - right.a);
}
Color operator*(const Color& left, const Color& right)
{
return Color((UINT8_MAX / left.r) < right.r ? 255 : left.r * right.r,
(UINT8_MAX / left.g) < right.g ? 255 : left.g * right.g,
(UINT8_MAX / left.b) < right.b ? 255 : left.b * right.b,
(UINT8_MAX / left.a) < right.a ? 255 : left.a * right.a);
}
Color operator/(const Color& left, const Color& right)
{
return Color(left.r / right.r,
left.g / right.g,
left.b / right.b,
left.a / right.a);
}
Color& operator+=(Color& left, const Color& right)
{
left = left + right;
return left;
}
Color& operator-=(Color& left, const Color& right)
{
left = left - right;
return left;
}
Color& operator*=(Color& left, const Color& right)
{
left = left * right;
return left;
}
Color& operator/=(Color& left, const Color& right)
{
left = left / right;
return left;
}
bool operator==(const Color& left, const Color& right)
{
return ((left.r == right.r) && (left.g == right.g) && (left.b == right.b) && (left.a == right.a));
}
bool operator!=(const Color& left, const Color& right)
{
return !(left == right);
}
SDLU_END

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src/structures/Mouse.cpp Normal file
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#include <structures/Mouse.hpp>
#include <SDL_mouse.h>
SDLU_BEGIN
Uint32 Mouse::GetButtonState()
{
return SDL_GetMouseState(NULL, NULL);
}
bool Mouse::IsButtonDown(Button button)
{
return (GetButtonState() & SDL_BUTTON(static_cast<int>(button)));
}
Vector2i Mouse::GetPosition()
{
int x = 0, y = 0;
SDL_GetGlobalMouseState(&x, &y);
return Vector2i(x, y);
}
Vector2i Mouse::GetPosition(const RenderWindow& relativeTo)
{
return GetPosition() - relativeTo.GetPosition();
}
void Mouse::SetPosition(const Vector2i& position)
{
SDL_WarpMouseGlobal(position.x, position.y);
}
void Mouse::SetPosition(const Vector2i& position, const RenderWindow& relativeTo)
{
SDL_WarpMouseInWindow(relativeTo.GetWindow(), position.x, position.y);
}
SDLU_END

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src/structures/Window.cpp Normal file
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#include "structures/Window.hpp"
#include <SDL.h>
#include <cstring>
SDLU_BEGIN
Window::Window() :
window(nullptr)
{
// Empty
}
Window::Window(Vector2u dimension, const std::string& title, Uint32 windowFlags) :
Window()
{
Create(dimension, title, windowFlags);
}
Window::~Window()
{
Close();
}
void Window::Create(Vector2u dimension, const std::string& title, Uint32 windowFlags)
{
// Don't create a window when it already exists
RETURN_IF_NOT_NULLPTR(window);
window = SDL_CreateWindow(title.c_str(),
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
dimension.x, dimension.y,
windowFlags);
THROW_IF(IS_NULLPTR(window),
std::runtime_error("Failed to create SDL_Window. \nSDL_GetError(): " + std::string(SDL_GetError())));
OnCreate();
}
void Window::Close()
{
// Don't destroy a window that doesn't exist
RETURN_IF_NULLPTR(window);
SDL_DestroyWindow(window);
window = nullptr;
OnClose();
}
bool Window::IsOpen() const
{
RETURN_IF_NULLPTR(window, false);
return (!SDL_GetWindowID(window) ? false : true);
}
bool Window::PollEvent(SDL_Event* event)
{
RETURN_IF_NULLPTR(window, false);
// Handle events before the user in case a derived
// class decides to block the event.
while (SDL_PollEvent(event))
{
switch (event->window.event)
{
case SDL_WINDOWEVENT_RESIZED: if (!OnResize()) return true; break;
default: return true;
}
}
event = NULL;
return false;
}
bool Window::WaitEvent(SDL_Event* event)
{
while (!PollEvent(event)) continue;
return true;
}
Vector2i Window::GetPosition() const
{
RETURN_IF_NULLPTR(window, Vector2i());
int x = 0, y = 0;
SDL_GetWindowPosition(window, &x, &y);
return Vector2i(x, y);
}
void Window::SetPosition(Vector2i position)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowPosition(window, position.x, position.y);
}
void Window::SetPosition(int x, int y)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowPosition(window, x, y);
}
Vector2u Window::GetSize() const
{
RETURN_IF_NULLPTR(window, Vector2u());
int x = 0, y = 0;
SDL_GetWindowSize(window, &x, &y);
return Vector2u(x, y);
}
void Window::SetSize(Vector2u size)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowSize(window, size.x, size.y);
}
void Window::SetSize(unsigned int width, unsigned int height)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowSize(window, width, height);
}
std::string Window::GetTitle() const
{
RETURN_IF_NULLPTR(window, "");
return SDL_GetWindowTitle(window);
}
void Window::SetTitle(std::string title)
{
RETURN_IF_NULLPTR(window);
SDL_SetWindowTitle(window, title.c_str());
}
SDL_Window* const Window::GetWindow() const
{
return window;
}
void Window::SetVisible(bool visible)
{
RETURN_IF_NULLPTR(window);
if (visible)
SDL_ShowWindow(window);
else
SDL_HideWindow(window);
}
void Window::SetVsync(bool vsync)
{
// SDL actually doesn't allow you to change the VSync
// flag of a Renderer after it's been created. This
// Changes it globally for all other windows
SDL_GL_SetSwapInterval(vsync);
}
void Window::SetMouseCursorVisible(bool visible)
{
SDL_ShowCursor(visible);
}
void Window::SetMouseCursorGrabbed(bool grabbed)
{
SDL_SetWindowGrab(window, grabbed ? SDL_TRUE : SDL_FALSE);
}
void Window::SetIcon(Uint32 width, Uint32 height, const Uint8* pixels)
{
size_t size = static_cast<size_t>(width) * static_cast<size_t>(height) * 4;
void* _pixels = malloc(size);
memcpy(_pixels, pixels, size);
SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
width, height, 32, 32 * width,
SDL_PIXELFORMAT_RGBA8888);
SDL_SetWindowIcon(window, surface);
}
void Window::SetIcon(Uint32 width, Uint32 height, const Uint32* pixels)
{
size_t size = static_cast<size_t>(width) * static_cast<size_t>(height) * 4;
void* _pixels = malloc(size);
memcpy(_pixels, pixels, size);
SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
width, height, 32, 4 * width,
SDL_PIXELFORMAT_RGBA8888);
SDL_SetWindowIcon(window, surface);
}
void Window::SetIcon(SDL_Surface* icon)
{
SDL_SetWindowIcon(window, icon);
}
void Window::SetMouseCursor(SDL_Cursor* cursor)
{
SDL_SetCursor(cursor);
}
void Window::SetMouseCursor(SDL_Surface* surface, Vector2u clickspot)
{
SDL_Cursor* _cursor = SDL_CreateColorCursor(surface, clickspot.x, clickspot.y);
SDL_SetCursor(_cursor);
}
void Window::SetMouseCursor(const Uint8* pixels, Vector2u size, Vector2u clickspot)
{
size_t _size = static_cast<size_t>(size.x) * static_cast<size_t>(size.y) * 4;
void* _pixels = malloc(_size);
memcpy(_pixels, pixels, _size);
SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
size.x, size.y, 32, 8 * size.x, SDL_PIXELFORMAT_RGBA8888);
this->SetMouseCursor(surface, clickspot);
}
void Window::SetMouseCursor(const Uint32* pixels, Vector2u size, Vector2u clickspot)
{
size_t _size = static_cast<size_t>(size.x) * static_cast<size_t>(size.y) * 4;
void* _pixels = malloc(_size);
memcpy(_pixels, pixels, _size);
SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
size.x, size.y, 32, 8 * size.x, SDL_PIXELFORMAT_RGBA32);
this->SetMouseCursor(surface, clickspot);
}
void Window::OnCreate()
{
}
bool Window::OnResize()
{
return false;
}
void Window::OnClose()
{
}
SDLU_END