#include <set>
-#if !defined(WIN32) && !defined(__APPLE__)
+#include <cstdlib>
+#if defined(__ANDROID__)
+#include <EGL/egl.h>
+#elif !defined(_WIN32) && !defined(__APPLE__)
#define GLX_GLXEXT_PROTOTYPES
#include <GL/glx.h>
#endif
#include "extension.h"
#include "gl.h"
+#ifndef GL_VERSION_3_0
+#define GL_NUM_EXTENSIONS 0x821D
+#endif
+
+#ifndef GL_VERSION_3_2
+#define GL_CONTEXT_CORE_PROFILE_BIT 0x00000001
+#define GL_CONTEXT_PROFILE_MASK 0x9126
+#endif
+
using namespace std;
namespace Msp {
bool is_supported(const string &ext)
{
+ if(is_disabled(ext))
+ return false;
+
static set<string> extensions;
static bool init_done = false;
if(!init_done)
{
- if(const char *gl_ext = reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)))
+ if(get_gl_api()==OPENGL && get_gl_version()>=Version(3, 0))
+ {
+ typedef GLubyte *(APIENTRY *FPtr_glGetStringi)(GLenum, GLuint);
+ FPtr_glGetStringi glGetStringi = reinterpret_cast<FPtr_glGetStringi>(get_proc_address("glGetStringi"));
+ int n_extensions;
+ glGetIntegerv(GL_NUM_EXTENSIONS, &n_extensions);
+ for(int i=0; i<n_extensions; ++i)
+ extensions.insert(reinterpret_cast<const char *>(glGetStringi(GL_EXTENSIONS, i)));
+ }
+ else
{
- vector<string> exts = split(gl_ext);
- extensions.insert(exts.begin(), exts.end());
+ if(const char *gl_ext = reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)))
+ {
+ vector<string> exts = split(gl_ext);
+ extensions.insert(exts.begin(), exts.end());
+ }
}
- string renderer = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
- if(renderer.find("Radeon")!=string::npos)
- /* Radeon doesn't process NV_primitive_restart correctly and treats
- the restart index as a normal element if the indices are stored in a
- buffer. */
- extensions.erase("GL_NV_primitive_restart");
+ init_done = true;
+ }
+
+ return extensions.count(ext);
+}
+
+bool is_supported(const Version &core_version, const Version &deprecated_version)
+{
+ const Version &version = get_gl_version();
+ if(deprecated_version && version>=deprecated_version && get_gl_profile()==CORE_PROFILE)
+ return false;
+ return (version>=core_version);
+}
+
+bool is_disabled(const string &ext)
+{
+ static set<string> disabled_exts;
+ static bool init_done = false;
+ if(!init_done)
+ {
if(const char *disable_ptr = getenv("MSPGL_DISABLE_EXTENSIONS"))
{
vector<string> disable = split(disable_ptr);
- for(vector<string>::const_iterator i=disable.begin(); i!=disable.end(); ++i)
- extensions.erase(*i);
+ disabled_exts.insert(disable.begin(), disable.end());
+ }
+
+ if(const char *renderer_ptr = reinterpret_cast<const char *>(glGetString(GL_RENDERER)))
+ {
+ string renderer = renderer_ptr;
+ if(renderer.find("Radeon")!=string::npos || renderer.find("AMD")!=string::npos)
+ {
+ /* Radeon doesn't process NV_primitive_restart correctly and treats
+ the restart index as a normal element if the indices are stored in a
+ buffer. */
+ disabled_exts.insert("GL_NV_primitive_restart");
+
+ // The core primitive restart feature does not work either.
+ disabled_exts.insert("GL_MSP_primitive_restart");
+
+ /* AMD's uniform buffer objects only work with the core version of
+ shaders. */
+ if(get_gl_version()<Version(2, 0))
+ disabled_exts.insert("GL_ARB_uniform_buffer_object");
+ }
}
init_done = true;
}
- return extensions.count(ext);
+ return disabled_exts.count(ext);
+}
+
+GLApi get_gl_api()
+{
+#ifdef GL_ES_VERSION_2_0
+ return OPENGL_ES2;
+#else
+ return OPENGL;
+#endif
+}
+
+inline GLProfile _get_gl_profile()
+{
+ if(get_gl_api()==OPENGL && get_gl_version()>=Version(3, 0))
+ {
+ int mask;
+ glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
+ if(mask==GL_CONTEXT_CORE_PROFILE_BIT)
+ return CORE_PROFILE;
+ }
+
+ return COMPATIBILITY_PROFILE;
+}
+
+GLProfile get_gl_profile()
+{
+ static GLProfile profile = _get_gl_profile();
+ return profile;
}
inline Version _get_gl_version()
{
- string gl_ver = reinterpret_cast<const char *>(glGetString(GL_VERSION));
+ const char *gl_ver_ptr = reinterpret_cast<const char *>(glGetString(GL_VERSION));
+ if(!gl_ver_ptr)
+ throw runtime_error("OpenGL version not available");
+
+ string gl_ver = gl_ver_ptr;
+ if(!gl_ver.compare(0, 10, "OpenGL ES "))
+ gl_ver.erase(0, 10);
+
Version ver(gl_ver.substr(0, gl_ver.find(' ')));
if(const char *force_ver_ptr = getenv("MSPGL_FORCE_VERSION"))
{
Version force_ver(force_ver_ptr);
- if(!(force_ver>=ver))
+ if(force_ver<ver)
ver = force_ver;
}
inline Version _get_glsl_version()
{
- string glsl_ver = reinterpret_cast<const char *>(glGetString(GL_SHADING_LANGUAGE_VERSION));
+ const char *glsl_ver_ptr = reinterpret_cast<const char *>(glGetString(GL_SHADING_LANGUAGE_VERSION));
+ if(!glsl_ver_ptr)
+ throw runtime_error("GLSL version not available");
+
+ string glsl_ver = glsl_ver_ptr;
+ if(!glsl_ver.compare(0, 18, "OpenGL ES GLSL ES "))
+ glsl_ver.erase(0, 18);
+
Version ver(glsl_ver.substr(0, glsl_ver.find(' ')));
if(const char *force_ver_ptr = getenv("MSPGL_FORCE_GLSL_VERSION"))
{
Version force_ver(force_ver_ptr);
- if(!(force_ver>=ver))
+ if(force_ver<ver)
ver = force_ver;
}
return version;
}
-bool is_version_at_least(unsigned a, unsigned b)
-{
- return get_gl_version()>=Version(a, b);
-}
-
ExtFunc *get_proc_address(const string &name)
{
-#if defined(WIN32)
+#if defined(_WIN32)
return reinterpret_cast<ExtFunc *>(wglGetProcAddress(name.c_str()));
#elif defined(__APPLE__)
(void)name;
return 0; // Not supported
+#elif defined(__ANDROID__)
+ return eglGetProcAddress(name.c_str());
#else
return glXGetProcAddressARB(reinterpret_cast<const unsigned char *>(name.c_str()));
#endif
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