ilikecats/stk-code_catmod
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Added #stk_include directive for our shaders.

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OpenGL ES doesn't allow to link multiple shaders into one program. We can just join it on our side and compile it as one file instead.
This commit is contained in:
Deve 2016-06-26 16:05:05 +02:00
parent 9ce190f704
commit e46905b106
1 changed files with 48 additions and 1 deletions
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49
src/graphics/shader.cpp
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@ -114,11 +114,58 @@ GLuint ShaderBase::loadShader(const std::string &file, unsigned type)
{
std::string Line = "";
while (getline(stream, Line))
code << "\n" << Line;
{
const std::string stk_include = "#stk_include";
int pos = Line.find(stk_include);
if (pos != std::string::npos)
{
int pos = Line.find("\"");
if (pos == std::string::npos)
{
Log::error("shader", "Invalid #stk_include line: '%s'.", Line.c_str());
continue;
}
std::string filename = Line.substr(pos+1);
pos = filename.find("\"");
if (pos == std::string::npos)
{
Log::error("shader", "Invalid #stk_include line: '%s'.", Line.c_str());
continue;
}
filename = filename.substr(0, pos);
printf("%s\n", filename.c_str());
std::ifstream include_stream(file_manager->getShader(filename), std::ios::in);
if (!include_stream.is_open())
{
Log::error("shader", "Couldn't open included shader: '%s'.", filename.c_str());
continue;
}
std::string include_line = "";
while (getline(include_stream, include_line))
{
code << "\n" << include_line;
}
include_stream.close();
}
else
{
code << "\n" << Line;
}
}
stream.close();
}
else
{
Log::error("shader", "Can not open '%s'.", file.c_str());
}
Log::info("shader", "Compiling shader : %s", file.c_str());
const std::string &source = code.str();