LOVE/love
1
0
Fork 0
mirror of https://github.com/love2d/love.git synced 2026-08-15 15:51:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

Added Shader:sendInt

Browse Source
This commit is contained in:
Alex Szpakowski
2013-04-27 19:26:32 -07:00
parent fb9f8d2962
commit b44c083894
4 changed files with 135 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/modules/graphics/opengl/wrap_Shader.cpp
+83 -35
View File
@@ -43,78 +43,105 @@ int w_Shader_getWarnings(lua_State *L)
return 1;
}
static int _sendScalars(lua_State *L, Shader *shader, const char *name, int count)
template <typename T>
static T *_getScalars(lua_State *L, int count, size_t &dimension)
{
float *values = new float[count];
dimension = 1;
T *values = new T[count];
for (int i = 0; i < count; ++i)
{
if (lua_isnumber(L, 3 + i))
values[i] = (float)lua_tonumber(L, 3 + i);
values[i] = static_cast<T>(lua_tonumber(L, 3 + i));
else if (lua_isboolean(L, 3 + i))
values[i] = (float)lua_toboolean(L, 3 + i);
values[i] = static_cast<T>(lua_toboolean(L, 3 + i));
else
{
delete[] values;
return luaL_typerror(L, 3 + i, "number or boolean");
luaL_typerror(L, 3 + i, "number or boolean");
return 0;
}
values[i] = (float)lua_tonumber(L, 3 + i);
}
try
{
shader->sendFloat(name, 1, values, count);
}
catch(love::Exception &e)
{
delete[] values;
return luaL_error(L, "%s", e.what());
}
delete[] values;
return 0;
return values;
}
static int _sendVectors(lua_State *L, Shader *shader, const char *name, int count)
template <typename T>
static T *_getVectors(lua_State *L, int count, size_t &dimension)
{
size_t dimension = lua_objlen(L, 3);
float *values = new float[count * dimension];
dimension = lua_objlen(L, 3);
T *values = new T[count * dimension];
for (int i = 0; i < count; ++i)
{
if (!lua_istable(L, 3 + i))
{
delete[] values;
return luaL_typerror(L, 3 + i, "table");
luaL_typerror(L, 3 + i, "table");
return 0;
}
if (lua_objlen(L, 3 + i) != dimension)
{
delete[] values;
return luaL_error(L, "Error in argument %d: Expected table size %d, got %d.",
3+i, dimension, lua_objlen(L, 3+i));
luaL_error(L, "Error in argument %d: Expected table size %d, got %d.",
3+i, dimension, lua_objlen(L, 3+i));
return 0;
}
for (size_t k = 1; k <= dimension; ++k)
{
lua_rawgeti(L, 3 + i, k);
if (lua_isboolean(L, -1))
values[i * dimension + k - 1] = (float)lua_toboolean(L, -1);
if (lua_isnumber(L, -1))
values[i * dimension + k - 1] = static_cast<T>(lua_tonumber(L, -1));
else if (lua_isboolean(L, -1))
values[i * dimension + k - 1] = static_cast<T>(lua_toboolean(L, -1));
else
values[i * dimension + k - 1] = (float)lua_tonumber(L, -1);
{
delete[] values;
luaL_typerror(L, -1, "number or boolean");
return 0;
}
}
lua_pop(L, int(dimension));
}
return values;
}
int w_Shader_sendInt(lua_State *L)
{
Shader *shader = luax_checkshader(L, 1);
const char *name = luaL_checkstring(L, 2);
int count = lua_gettop(L) - 2;
if (count < 1)
return luaL_error(L, "No variable to send.");
int *values = 0;
size_t dimension = 1;
if (lua_isnumber(L, 3) || lua_isboolean(L, 3))
values = _getScalars<int>(L, count, dimension);
else if (lua_istable(L, 3))
values = _getVectors<int>(L, count, dimension);
else
return luaL_typerror(L, 3, "number, boolean, or table");
if (!values)
return luaL_error(L, "Error in arguments.");
try
{
shader->sendFloat(name, dimension, values, count);
shader->sendInt(name, dimension, values, count);
}
catch(love::Exception &e)
catch (love::Exception &e)
{
delete[] values;
return luaL_error(L, "%s", e.what());
}
delete[] values;
return 0;
}
@@ -127,12 +154,32 @@ int w_Shader_sendFloat(lua_State *L)
if (count < 1)
return luaL_error(L, "No variable to send.");
if (lua_isnumber(L, 3) || lua_isboolean(L, 3))
return _sendScalars(L, shader, name, count);
else if (lua_istable(L, 3))
return _sendVectors(L, shader, name, count);
float *values = 0;
size_t dimension = 1;
return luaL_typerror(L, 3, "number, boolean, or table");
if (lua_isnumber(L, 3) || lua_isboolean(L, 3))
values = _getScalars<float>(L, count, dimension);
else if (lua_istable(L, 3))
values = _getVectors<float>(L, count, dimension);
else
return luaL_typerror(L, 3, "number, boolean, or table");
if (!values)
return luaL_error(L, "Error in arguments.");
try
{
shader->sendFloat(name, dimension, values, count);
}
catch (love::Exception &e)
{
delete[] values;
return luaL_error(L, "%s", e.what());
}
delete[] values;
return 0;
}
int w_Shader_sendMatrix(lua_State *L)
@@ -232,6 +279,7 @@ int w_Shader_sendCanvas(lua_State *L)
static const luaL_Reg functions[] =
{
{ "getWarnings", w_Shader_getWarnings },
{ "sendInt", w_Shader_sendInt },
{ "sendFloat", w_Shader_sendFloat },
{ "sendMatrix", w_Shader_sendMatrix },
{ "sendImage", w_Shader_sendImage },