Generate a passthrough for gl_Position in geometry shader

[libs/gl.git] / source / program.cpp

diff --git a/source/program.cpp b/source/program.cpp
index 021b23483dcdce1c074388916a38721a72aee567..2d298e82e9d29922a3c18b1d5236dadb25ae402b 100644 (file)
--- a/source/program.cpp
+++ b/source/program.cpp
@@ -8,11 +8,13 @@
 #include <msp/gl/extensions/arb_vertex_shader.h>
 #include <msp/gl/extensions/ext_gpu_shader4.h>
 #include <msp/gl/extensions/nv_non_square_matrices.h>
+#include <msp/io/print.h>
 #include <msp/strings/format.h>
 #include "buffer.h"
 #include "error.h"
 #include "misc.h"
 #include "program.h"
+#include "programcompiler.h"
 #include "shader.h"
 
 using namespace std;
@@ -34,6 +36,16 @@ Program::Program(const ProgramBuilder::StandardFeatures &features)
        link();
 }
 
+Program::Program(const std::string &source)
+{
+       init();
+
+       ProgramCompiler compiler;
+       compiler.compile(source);
+       compiler.add_shaders(*this);
+       link();
+}
+
 Program::Program(const string &vert, const string &frag)
 {
        init();
@@ -115,6 +127,12 @@ void Program::link()
        if(!linked)
                throw compile_error(get_info_log());
 
+#ifdef DEBUG
+       std::string info_log = get_info_log();
+       if(!info_log.empty())
+               IO::print("Program link info log:\n%s", info_log);
+#endif
+
        unsigned count = get_program_i(id, GL_ACTIVE_UNIFORMS);
        vector<UniformInfo *> uniforms_by_index(count);
        for(unsigned i=0; i<count; ++i)