Complete rewrite of extension handling

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

diff --git a/source/arb_vertex_buffer_object.cpp b/source/arb_vertex_buffer_object.cpp
index 66ef40e5d952d9845147091ec4da51a6e1ce3fff..cf623c476221a66ec8cd21e75fd971b9c6a837f4 100644 (file)
--- a/source/arb_vertex_buffer_object.cpp
+++ b/source/arb_vertex_buffer_object.cpp
@@ -1,35 +1,56 @@
-#include "extension.h"
 #include "arb_vertex_buffer_object.h"
 
 namespace Msp {
 namespace GL {
 
-PFNGLBINDBUFFERARBPROC glBindBufferARB = 0;
-PFNGLDELETEBUFFERSARBPROC glDeleteBuffersARB = 0;
-PFNGLGENBUFFERSARBPROC glGenBuffersARB = 0;
-PFNGLISBUFFERARBPROC glIsBufferARB = 0;
-PFNGLBUFFERDATAARBPROC glBufferDataARB = 0;
-PFNGLBUFFERSUBDATAARBPROC glBufferSubDataARB = 0;
-PFNGLGETBUFFERSUBDATAARBPROC glGetBufferSubDataARB = 0;
-PFNGLMAPBUFFERARBPROC glMapBufferARB = 0;
-PFNGLUNMAPBUFFERARBPROC glUnmapBufferARB = 0;
-PFNGLGETBUFFERPARAMETERIVARBPROC glGetBufferParameterivARB = 0;
-PFNGLGETBUFFERPOINTERVARBPROC glGetBufferPointervARB = 0;
+PFNGLBINDBUFFERPROC glBindBuffer = 0;
+PFNGLBUFFERDATAPROC glBufferData = 0;
+PFNGLBUFFERSUBDATAPROC glBufferSubData = 0;
+PFNGLDELETEBUFFERSPROC glDeleteBuffers = 0;
+PFNGLGENBUFFERSPROC glGenBuffers = 0;
+PFNGLGETBUFFERPARAMETERIVPROC glGetBufferParameteriv = 0;
+PFNGLGETBUFFERPOINTERVPROC glGetBufferPointerv = 0;
+PFNGLGETBUFFERSUBDATAPROC glGetBufferSubData = 0;
+PFNGLISBUFFERPROC glIsBuffer = 0;
+PFNGLMAPBUFFERPROC glMapBuffer = 0;
+PFNGLUNMAPBUFFERPROC glUnmapBuffer = 0;
 
-void init_arb_vertex_buffer_object()
+Extension::SupportLevel init_arb_vertex_buffer_object()
 {
-       glBindBufferARB = reinterpret_cast<PFNGLBINDBUFFERARBPROC>(get_proc_address("glBindBufferARB"));
-       glDeleteBuffersARB = reinterpret_cast<PFNGLDELETEBUFFERSARBPROC>(get_proc_address("glDeleteBuffersARB"));
-       glGenBuffersARB = reinterpret_cast<PFNGLGENBUFFERSARBPROC>(get_proc_address("glGenBuffersARB"));
-       glIsBufferARB = reinterpret_cast<PFNGLISBUFFERARBPROC>(get_proc_address("glIsBufferARB"));
-       glBufferDataARB = reinterpret_cast<PFNGLBUFFERDATAARBPROC>(get_proc_address("glBufferDataARB"));
-       glBufferSubDataARB = reinterpret_cast<PFNGLBUFFERSUBDATAARBPROC>(get_proc_address("glBufferSubDataARB"));
-       glGetBufferSubDataARB = reinterpret_cast<PFNGLGETBUFFERSUBDATAARBPROC>(get_proc_address("glGetBufferSubDataARB"));
-       glMapBufferARB = reinterpret_cast<PFNGLMAPBUFFERARBPROC>(get_proc_address("glMapBufferARB"));
-       glUnmapBufferARB = reinterpret_cast<PFNGLUNMAPBUFFERARBPROC>(get_proc_address("glUnmapBufferARB"));
-       glGetBufferParameterivARB = reinterpret_cast<PFNGLGETBUFFERPARAMETERIVARBPROC>(get_proc_address("glGetBufferParameterivARB"));
-       glGetBufferPointervARB = reinterpret_cast<PFNGLGETBUFFERPOINTERVARBPROC>(get_proc_address("glGetBufferPointervARB"));
+       if(is_version_at_least(1, 5))
+       {
+               glBindBuffer = reinterpret_cast<PFNGLBINDBUFFERPROC>(get_proc_address("glBindBuffer"));
+               glBufferData = reinterpret_cast<PFNGLBUFFERDATAPROC>(get_proc_address("glBufferData"));
+               glBufferSubData = reinterpret_cast<PFNGLBUFFERSUBDATAPROC>(get_proc_address("glBufferSubData"));
+               glDeleteBuffers = reinterpret_cast<PFNGLDELETEBUFFERSPROC>(get_proc_address("glDeleteBuffers"));
+               glGenBuffers = reinterpret_cast<PFNGLGENBUFFERSPROC>(get_proc_address("glGenBuffers"));
+               glGetBufferParameteriv = reinterpret_cast<PFNGLGETBUFFERPARAMETERIVPROC>(get_proc_address("glGetBufferParameteriv"));
+               glGetBufferPointerv = reinterpret_cast<PFNGLGETBUFFERPOINTERVPROC>(get_proc_address("glGetBufferPointerv"));
+               glGetBufferSubData = reinterpret_cast<PFNGLGETBUFFERSUBDATAPROC>(get_proc_address("glGetBufferSubData"));
+               glIsBuffer = reinterpret_cast<PFNGLISBUFFERPROC>(get_proc_address("glIsBuffer"));
+               glMapBuffer = reinterpret_cast<PFNGLMAPBUFFERPROC>(get_proc_address("glMapBuffer"));
+               glUnmapBuffer = reinterpret_cast<PFNGLUNMAPBUFFERPROC>(get_proc_address("glUnmapBuffer"));
+               return Extension::CORE;
+       }
+       if(is_supported("GL_ARB_vertex_buffer_object"))
+       {
+               glBindBuffer = reinterpret_cast<PFNGLBINDBUFFERPROC>(get_proc_address("glBindBufferARB"));
+               glBufferData = reinterpret_cast<PFNGLBUFFERDATAPROC>(get_proc_address("glBufferDataARB"));
+               glBufferSubData = reinterpret_cast<PFNGLBUFFERSUBDATAPROC>(get_proc_address("glBufferSubDataARB"));
+               glDeleteBuffers = reinterpret_cast<PFNGLDELETEBUFFERSPROC>(get_proc_address("glDeleteBuffersARB"));
+               glGenBuffers = reinterpret_cast<PFNGLGENBUFFERSPROC>(get_proc_address("glGenBuffersARB"));
+               glGetBufferParameteriv = reinterpret_cast<PFNGLGETBUFFERPARAMETERIVPROC>(get_proc_address("glGetBufferParameterivARB"));
+               glGetBufferPointerv = reinterpret_cast<PFNGLGETBUFFERPOINTERVPROC>(get_proc_address("glGetBufferPointervARB"));
+               glGetBufferSubData = reinterpret_cast<PFNGLGETBUFFERSUBDATAPROC>(get_proc_address("glGetBufferSubDataARB"));
+               glIsBuffer = reinterpret_cast<PFNGLISBUFFERPROC>(get_proc_address("glIsBufferARB"));
+               glMapBuffer = reinterpret_cast<PFNGLMAPBUFFERPROC>(get_proc_address("glMapBufferARB"));
+               glUnmapBuffer = reinterpret_cast<PFNGLUNMAPBUFFERPROC>(get_proc_address("glUnmapBufferARB"));
+               return Extension::EXTENSION;
+       }
+       return Extension::UNSUPPORTED;
 }
 
+Extension ARB_vertex_buffer_object("GL_ARB_vertex_buffer_object", init_arb_vertex_buffer_object);
+
 } // namespace GL
 } // namespace Msp