Files
love/src/modules/graphics/opengl/wrap_Image.cpp
T
2014-12-31 19:32:43 -04:00

139 lines
3.4 KiB
C++

/**
* Copyright (c) 2006-2015 LOVE Development Team
*
* 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.
**/
// LOVE
#include "wrap_Image.h"
namespace love
{
namespace graphics
{
namespace opengl
{
Image *luax_checkimage(lua_State *L, int idx)
{
return luax_checktype<Image>(L, idx, "Image", GRAPHICS_IMAGE_T);
}
int w_Image_setMipmapFilter(lua_State *L)
{
Image *t = luax_checkimage(L, 1);
Texture::Filter f = t->getFilter();
if (lua_isnoneornil(L, 2))
f.mipmap = Texture::FILTER_NONE; // mipmapping is disabled if no argument is given
else
{
const char *mipmapstr = luaL_checkstring(L, 2);
if (!Texture::getConstant(mipmapstr, f.mipmap))
return luaL_error(L, "Invalid filter mode: %s", mipmapstr);
}
luax_catchexcept(L, [&](){ t->setFilter(f); });
float sharpness = (float) luaL_optnumber(L, 3, 0);
t->setMipmapSharpness(sharpness);
return 0;
}
int w_Image_getMipmapFilter(lua_State *L)
{
Image *t = luax_checkimage(L, 1);
const Texture::Filter &f = t->getFilter();
const char *mipmapstr;
if (Texture::getConstant(f.mipmap, mipmapstr))
lua_pushstring(L, mipmapstr);
else
lua_pushnil(L); // only return a mipmap filter if mipmapping is enabled
lua_pushnumber(L, t->getMipmapSharpness());
return 2;
}
int w_Image_isCompressed(lua_State *L)
{
Image *i = luax_checkimage(L, 1);
luax_pushboolean(L, i->isCompressed());
return 1;
}
int w_Image_refresh(lua_State *L)
{
Image *i = luax_checkimage(L, 1);
luax_catchexcept(L, [&](){ i->refresh(); });
return 0;
}
int w_Image_getData(lua_State *L)
{
Image *i = luax_checkimage(L, 1);
if (i->isCompressed())
{
love::image::CompressedData *t = i->getCompressedData();
if (t)
luax_pushtype(L, "CompressedData", IMAGE_COMPRESSED_DATA_T, t);
else
lua_pushnil(L);
}
else
{
love::image::ImageData *t = i->getImageData();
if (t)
luax_pushtype(L, "ImageData", IMAGE_IMAGE_DATA_T, t);
else
lua_pushnil(L);
}
return 1;
}
static const luaL_Reg functions[] =
{
// From wrap_Texture.
{ "getWidth", w_Texture_getWidth },
{ "getHeight", w_Texture_getHeight },
{ "getDimensions", w_Texture_getDimensions },
{ "setFilter", w_Texture_setFilter },
{ "getFilter", w_Texture_getFilter },
{ "setWrap", w_Texture_setWrap },
{ "getWrap", w_Texture_getWrap },
{ "setMipmapFilter", w_Image_setMipmapFilter },
{ "getMipmapFilter", w_Image_getMipmapFilter },
{ "isCompressed", w_Image_isCompressed },
{ "refresh", w_Image_refresh },
{ "getData", w_Image_getData },
{ 0, 0 }
};
extern "C" int luaopen_image(lua_State *L)
{
return luax_register_type(L, "Image", functions);
}
} // opengl
} // graphics
} // love