X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=util.cpp;h=01787f013e0a4c70817be2ccf49743cddb7bd254;hp=ac6a218098873953d25036605d728ed98257ec70;hb=refs%2Fheads%2Fepoxy;hpb=9e219b96e914b2e5709ba3c3345afdc3cf13a78d

diff --git a/util.cpp b/util.cpp
index ac6a218..01787f0 100644
--- a/util.cpp
+++ b/util.cpp
@@ -9,6 +9,14 @@
 #include "init.h"
 #include "util.h"
 
+#if defined(__DARWIN__)
+#include <OpenGL/OpenGL.h>
+#elif defined(WIN32)
+#include <epoxy/wgl.h>
+#else
+#include <epoxy/glx.h>
+#endif
+
 using namespace std;
 
 namespace movit {
@@ -88,6 +96,19 @@ string read_file(const string &filename)
 	return string(buf, len);
 }
 
+string read_version_dependent_file(const string &base, const string &extension)
+{
+	if (movit_shader_model == MOVIT_GLSL_110) {
+		return read_file(base + "." + extension);
+	} else if (movit_shader_model == MOVIT_GLSL_130) {
+		return read_file(base + ".130." + extension);
+	} else if (movit_shader_model == MOVIT_ESSL_300) {
+		return read_file(base + ".300es." + extension);
+	} else {
+		assert(false);
+	}
+}
+
 GLuint compile_shader(const string &shader_src, GLenum type)
 {
 	GLuint obj = glCreateShader(type);
@@ -233,4 +254,15 @@ unsigned next_power_of_two(unsigned v)
 	return v;
 }
 
+void *get_gl_context_identifier()
+{
+#if defined(__DARWIN__)
+	return (void *)CGLGetCurrentContext();
+#elif defined(WIN32)
+	return (void *)wglGetCurrentContext();
+#else
+	return (void *)glXGetCurrentContext();
+#endif
+}
+
 }  // namespace movit