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Add BlendMode caster

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This commit is contained in:
Kirigaya Kazuto 2017-04-12 09:22:15 +08:00
parent 3267be4a4e
commit 085463c873
2 changed files with 59 additions and 19 deletions
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58
MiniEngine.cpp
View File

@ -17,6 +17,41 @@
namespace MiniEngine
{
namespace _internal
{
BlendMode getBlendModeFromSDLBlendMode(SDL_BlendMode mode)
{
switch(mode)
{
case SDL_BLENDMODE_ADD:
return BlendMode::Add;
case SDL_BLENDMODE_BLEND:
return BlendMode::Blend;
case SDL_BLENDMODE_MOD:
return BlendMode::Mod;
case SDL_BLENDMODE_NONE:
default:/// return BlendMode::None on default.
return BlendMode::None;
}
}
SDL_BlendMode getSDLBlendModeFromBlendMode(BlendMode mode)
{
switch(mode)
{
case BlendMode::Add:
return SDL_BLENDMODE_ADD;
case BlendMode::Blend:
return SDL_BLENDMODE_BLEND;
case BlendMode::Mod:
return SDL_BLENDMODE_MOD;
case BlendMode::None:
default:/// return SDL_BLENDMODE_NONE on default.
return SDL_BLENDMODE_NONE;
}
}
}/// End of namespace _internal
Rect::Rect(int X, int Y, int W, int H)
{
x = X;
@ -213,6 +248,19 @@ namespace MiniEngine
}
}
BlendMode Surface::getBlendMode()
{
SDL_BlendMode temp;
/// FIXME: return value are ignored.
SDL_GetSurfaceBlendMode(_get(),&temp);
return _internal::getBlendModeFromSDLBlendMode(temp);
}
int Surface::setBlendMode(BlendMode mode)
{
return SDL_SetSurfaceBlendMode(_get(),_internal::getSDLBlendModeFromBlendMode(mode));
}
int Surface::savePNG(const std::string& filename)
{
return IMG_SavePNG(_get(),filename.c_str());
@ -262,14 +310,14 @@ namespace MiniEngine
int Texture::setBlendMode(BlendMode mode)
{
return SDL_SetTextureBlendMode(_get(), static_cast<SDL_BlendMode>(mode));
return SDL_SetTextureBlendMode(_get(), _internal::getSDLBlendModeFromBlendMode(mode));
}
BlendMode Texture::getBlendMode()
{
SDL_BlendMode temp;
SDL_GetTextureBlendMode(_get(), &temp);
return static_cast<BlendMode>(temp);
return _internal::getBlendModeFromSDLBlendMode(temp);
}
/// Alpha: 0: Transparent 255: opaque
@ -356,16 +404,18 @@ namespace MiniEngine
int Renderer::setBlendMode(BlendMode mode)
{
return SDL_SetRenderDrawBlendMode(_get(), static_cast<SDL_BlendMode>(mode));
return SDL_SetRenderDrawBlendMode(_get(), _internal::getSDLBlendModeFromBlendMode(mode));
}
BlendMode Renderer::getBlendMode()
{
SDL_BlendMode temp;
SDL_GetRenderDrawBlendMode(_get(), &temp);
return static_cast<BlendMode>(temp);
return _internal::getBlendModeFromSDLBlendMode(temp);
}
int Renderer::setTarget(Texture & t)
{
return SDL_SetRenderTarget(_get(), t._get());

20
MiniEngine.h
View File

@ -89,13 +89,7 @@ namespace MiniEngine
friend class Renderer;
};
enum class BlendMode
{
None = SDL_BLENDMODE_NONE,
Blend = SDL_BLENDMODE_BLEND,
Add = SDL_BLENDMODE_ADD,
Mod = SDL_BLENDMODE_MOD
};
enum class BlendMode { None,Blend,Add,Mod };
class Surface
{
@ -104,6 +98,8 @@ namespace MiniEngine
int savePNG(const std::string& filename);
int getw();
int geth();
BlendMode getBlendMode();
int setBlendMode(BlendMode mode);
protected:
Surface() = default;
private:
@ -150,13 +146,7 @@ namespace MiniEngine
friend class Renderer;
};
enum class RendererType
{
Software,
Accelerated,
PresentSync,
TargetTexture
};
enum class RendererType { Software, Accelerated, PresentSync, TargetTexture };
enum class FlipMode { None, Horizontal, Vertical };
@ -204,7 +194,7 @@ namespace MiniEngine
friend class Window;
};
enum class MessageBoxType { Error,Warning,Information };
enum class MessageBoxType { Error, Warning, Information };
class Window
{