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Shader:send now returns false if the uniform doesn't exist

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It also returns false if the uniform exists but was optimized out by the shader compiler. Previously it would cause a Lua error in both situations.
This commit is contained in:
Alex Szpakowski
2020-02-27 20:19:55 -04:00
parent 9425c9224b
commit b95788c104
1 changed files with 19 additions and 9 deletions
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src/modules/graphics/wrap_Shader.cpp
+19 -9
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@@ -411,14 +411,18 @@ int w_Shader_send(lua_State *L)
const Shader::UniformInfo *info = shader->getUniformInfo(name);
if (info == nullptr)
return luaL_error(L, "Shader uniform '%s' does not exist.\nA common error is to define but not use the variable.", name);
{
luax_pushboolean(L, false);
return 1;
}
int startidx = 3;
if (luax_istype(L, startidx, Data::type))
return w_Shader_sendData(L, startidx, shader, info, false);
if (luax_istype(L, 3, Data::type))
w_Shader_sendData(L, 3, shader, info, false);
else
return w_Shader_sendLuaValues(L, startidx, shader, info, name);
w_Shader_sendLuaValues(L, 3, shader, info, name);
luax_pushboolean(L, true);
return 1;
}
int w_Shader_sendColors(lua_State *L)
@@ -428,15 +432,21 @@ int w_Shader_sendColors(lua_State *L)
const Shader::UniformInfo *info = shader->getUniformInfo(name);
if (info == nullptr)
return luaL_error(L, "Shader uniform '%s' does not exist.\nA common error is to define but not use the variable.", name);
{
luax_pushboolean(L, false);
return 1;
}
if (info->baseType != Shader::UNIFORM_FLOAT || info->components < 3)
return luaL_error(L, "sendColor can only be used on vec3 or vec4 uniforms.");
if (luax_istype(L, 3, Data::type))
return w_Shader_sendData(L, 3, shader, info, true);
w_Shader_sendData(L, 3, shader, info, true);
else
return w_Shader_sendFloats(L, 3, shader, info, true);
w_Shader_sendFloats(L, 3, shader, info, true);
luax_pushboolean(L, true);
return 1;
}
int w_Shader_hasUniform(lua_State *L)